Clarify HashMap's capacity handling.
HashMap has two notions of "capacity":
- "Usable capacity": the number of elements a hash map can hold without
resizing. This is the meaning of "capacity" used in HashMap's API,
e.g. the `with_capacity()` function.
- "Internal capacity": the number of allocated slots. Except for the
zero case, it is always larger than the usable capacity (because some
slots must be left empty) and is always a power of two.
HashMap's code is confusing because it does a poor job of
distinguishing these two meanings. I propose using two different terms
for these two concepts. Because "capacity" is already used in HashMap's
API to mean "usable capacity", I will use a different word for "internal
capacity". I propose "span", though I'm happy to consider other names.
+Version 1.12.0 (2016-09-29)
+===========================
+
+Highlights
+----------
+
+* [`rustc` translates code to LLVM IR via its own "middle" IR (MIR)]
+ (https://github.com/rust-lang/rust/pull/34096).
+ This translation pass is far simpler than the previous AST->LLVM pass, and
+ creates opportunities to perform new optimizations directly on the MIR. It
+ was previously described [on the Rust blog]
+ (https://blog.rust-lang.org/2016/04/19/MIR.html).
+* [`rustc` presents a new, more readable error format, along with
+ machine-readable JSON error output for use by IDEs]
+ (https://github.com/rust-lang/rust/pull/35401).
+ Most common editors supporting Rust have been updated to work with it. It was
+ previously described [on the Rust blog]
+ (https://blog.rust-lang.org/2016/08/10/Shape-of-errors-to-come.html).
+
+Compiler
+--------
+
+* [`rustc` translates code to LLVM IR via its own "middle" IR (MIR)]
+ (https://github.com/rust-lang/rust/pull/34096).
+ This translation pass is far simpler than the previous AST->LLVM pass, and
+ creates opportunities to perform new optimizations directly on the MIR. It
+ was previously described [on the Rust blog]
+ (https://blog.rust-lang.org/2016/04/19/MIR.html).
+* [Print the Rust target name, not the LLVM target name, with
+ `--print target-list`]
+ (https://github.com/rust-lang/rust/pull/35489)
+* [The computation of `TypeId` is correct in some cases where it was previously
+ producing inconsistent results]
+ (https://github.com/rust-lang/rust/pull/35267)
+* [The `mips-unknown-linux-gnu` target uses hardware floating point by default]
+ (https://github.com/rust-lang/rust/pull/34910)
+* [The `rustc` arguments, `--print target-cpus`, `--print target-features`,
+ `--print relocation-models`, and `--print code-models` print the available
+ options to the `-C target-cpu`, `-C target-feature`, `-C relocation-model` and
+ `-C code-model` code generation arguments]
+ (https://github.com/rust-lang/rust/pull/34845)
+* [`rustc` supports three new MUSL targets on ARM: `arm-unknown-linux-musleabi`,
+ `arm-unknown-linux-musleabihf`, and `armv7-unknown-linux-musleabihf`]
+ (https://github.com/rust-lang/rust/pull/35060).
+ These targets produce statically-linked binaries. There are no binary release
+ builds yet though.
+
+Diagnostics
+-----------
+
+* [`rustc` presents a new, more readable error format, along with
+ machine-readable JSON error output for use by IDEs]
+ (https://github.com/rust-lang/rust/pull/35401).
+ Most common editors supporting Rust have been updated to work with it. It was
+ previously described [on the Rust blog]
+ (https://blog.rust-lang.org/2016/08/10/Shape-of-errors-to-come.html).
+* [In error descriptions, references are now described in plain English,
+ instead of as "&-ptr"]
+ (https://github.com/rust-lang/rust/pull/35611)
+* [In error type descriptions, unknown numeric types are named `{integer}` or
+ `{float}` instead of `_`]
+ (https://github.com/rust-lang/rust/pull/35080)
+* [`rustc` emits a clearer error when inner attributes follow a doc comment]
+ (https://github.com/rust-lang/rust/pull/34676)
+
+Language
+--------
+
+* [`macro_rules!` invocations can be made within `macro_rules!` invocations]
+ (https://github.com/rust-lang/rust/pull/34925)
+* [`macro_rules!` meta-variables are hygienic]
+ (https://github.com/rust-lang/rust/pull/35453)
+* [`macro_rules!` `tt` matchers can be reparsed correctly, making them much more
+ useful]
+ (https://github.com/rust-lang/rust/pull/34908)
+* [`macro_rules!` `stmt` matchers correctly consume the entire contents when
+ inside non-braces invocations]
+ (https://github.com/rust-lang/rust/pull/34886)
+* [Semicolons are properly required as statement delimeters inside
+ `macro_rules!` invocations]
+ (https://github.com/rust-lang/rust/pull/34660)
+* [`cfg_attr` works on `path` attributes]
+ (https://github.com/rust-lang/rust/pull/34546)
+
+Stabilized APIs
+---------------
+
+* [`Cell::as_ptr`]
+ (https://doc.rust-lang.org/std/cell/struct.Cell.html#method.as_ptr)
+* [`RefCell::as_ptr`]
+ (https://doc.rust-lang.org/std/cell/struct.RefCell.html#method.as_ptr)
+* [`IpAddr::is_unspecified`]
+ (https://doc.rust-lang.org/std/net/enum.IpAddr.html#method.is_unspecified)
+* [`IpAddr::is_loopback`]
+ (https://doc.rust-lang.org/std/net/enum.IpAddr.html#method.is_loopback)
+* [`IpAddr::is_multicast`]
+ (https://doc.rust-lang.org/std/net/enum.IpAddr.html#method.is_multicast)
+* [`Ipv4Addr::is_unspecified`]
+ (https://doc.rust-lang.org/std/net/struct.Ipv4Addr.html#method.is_unspecified)
+* [`Ipv6Addr::octets`]
+ (https://doc.rust-lang.org/std/net/struct.Ipv6Addr.html#method.octets)
+* [`LinkedList::contains`]
+ (https://doc.rust-lang.org/std/collections/linked_list/struct.LinkedList.html#method.contains)
+* [`VecDeque::contains`]
+ (https://doc.rust-lang.org/std/collections/vec_deque/struct.VecDeque.html#method.contains)
+* [`ExitStatusExt::from_raw`]
+ (https://doc.rust-lang.org/std/os/unix/process/trait.ExitStatusExt.html#tymethod.from_raw).
+ Both on Unix and Windows.
+* [`Receiver::recv_timeout`]
+ (https://doc.rust-lang.org/std/sync/mpsc/struct.Receiver.html#method.recv_timeout)
+* [`RecvTimeoutError`]
+ (https://doc.rust-lang.org/std/sync/mpsc/enum.RecvTimeoutError.html)
+* [`BinaryHeap::peek_mut`]
+ (https://doc.rust-lang.org/std/collections/binary_heap/struct.BinaryHeap.html#method.peek_mut)
+* [`PeekMut`]
+ (https://doc.rust-lang.org/std/collections/binary_heap/struct.PeekMut.html)
+* [`iter::Product`]
+ (https://doc.rust-lang.org/std/iter/trait.Product.html)
+* [`iter::Sum`]
+ (https://doc.rust-lang.org/std/iter/trait.Sum.html)
+* [`OccupiedEntry::remove_entry`]
+ (https://doc.rust-lang.org/std/collections/btree_map/struct.OccupiedEntry.html#method.remove_entry)
+* [`VacantEntry::into_key`]
+ (https://doc.rust-lang.org/std/collections/btree_map/struct.VacantEntry.html#method.into_key)
+
+Libraries
+---------
+
+* [The `format!` macro and friends now allow a single argument to be formatted
+ in multiple styles]
+ (https://github.com/rust-lang/rust/pull/33642)
+* [The lifetime bounds on `[T]::binary_search_by` and
+ `[T]::binary_search_by_key` have been adjusted to be more flexible]
+ (https://github.com/rust-lang/rust/pull/34762)
+* [`Option` implements `From` for its contained type]
+ (https://github.com/rust-lang/rust/pull/34828)
+* [`Cell`, `RefCell` and `UnsafeCell` implement `From` for their contained type]
+ (https://github.com/rust-lang/rust/pull/35392)
+* [`RwLock` panics if the reader count overflows]
+ (https://github.com/rust-lang/rust/pull/35378)
+* [`vec_deque::Drain`, `hash_map::Drain` and `hash_set::Drain` are covariant]
+ (https://github.com/rust-lang/rust/pull/35354)
+* [`vec::Drain` and `binary_heap::Drain` are covariant]
+ (https://github.com/rust-lang/rust/pull/34951)
+* [`Cow<str>` implements `FromIterator` for `char`, `&str` and `String`]
+ (https://github.com/rust-lang/rust/pull/35064)
+* [Sockets on Linux are correctly closed in subprocesses via `SOCK_CLOEXEC`]
+ (https://github.com/rust-lang/rust/pull/34946)
+* [`hash_map::Entry`, `hash_map::VacantEntry` and `hash_map::OccupiedEntry`
+ implement `Debug`]
+ (https://github.com/rust-lang/rust/pull/34937)
+* [`btree_map::Entry`, `btree_map::VacantEntry` and `btree_map::OccupiedEntry`
+ implement `Debug`]
+ (https://github.com/rust-lang/rust/pull/34885)
+* [`String` implements `AddAssign`]
+ (https://github.com/rust-lang/rust/pull/34890)
+* [Variadic `extern fn` pointers implement the `Clone`, `PartialEq`, `Eq`,
+ `PartialOrd`, `Ord`, `Hash`, `fmt::Pointer`, and `fmt::Debug` traits]
+ (https://github.com/rust-lang/rust/pull/34879)
+* [`FileType` implements `Debug`]
+ (https://github.com/rust-lang/rust/pull/34757)
+* [References to `Mutex` and `RwLock` are unwind-safe]
+ (https://github.com/rust-lang/rust/pull/34756)
+* [`mpsc::sync_channel` `Receiver`s return any available message before
+ reporting a disconnect]
+ (https://github.com/rust-lang/rust/pull/34731)
+* [Unicode definitions have been updated to 9.0]
+ (https://github.com/rust-lang/rust/pull/34599)
+* [`env` iterators implement `DoubleEndedIterator`]
+ (https://github.com/rust-lang/rust/pull/33312)
+
+Cargo
+-----
+
+* [Support local mirrors of registries]
+ (https://github.com/rust-lang/cargo/pull/2857)
+* [Add support for command aliases]
+ (https://github.com/rust-lang/cargo/pull/2679)
+* [Allow `opt-level="s"` / `opt-level="z"` in profile overrides]
+ (https://github.com/rust-lang/cargo/pull/3007)
+* [Make `cargo doc --open --target` work as expected]
+ (https://github.com/rust-lang/cargo/pull/2988)
+* [Speed up noop registry updates]
+ (https://github.com/rust-lang/cargo/pull/2974)
+* [Update OpenSSL]
+ (https://github.com/rust-lang/cargo/pull/2971)
+* [Fix `--panic=abort` with plugins]
+ (https://github.com/rust-lang/cargo/pull/2954)
+* [Always pass `-C metadata` to the compiler]
+ (https://github.com/rust-lang/cargo/pull/2946)
+* [Fix depending on git repos with workspaces]
+ (https://github.com/rust-lang/cargo/pull/2938)
+* [Add a `--lib` flag to `cargo new`]
+ (https://github.com/rust-lang/cargo/pull/2921)
+* [Add `http.cainfo` for custom certs]
+ (https://github.com/rust-lang/cargo/pull/2917)
+* [Indicate the compilation profile after compiling]
+ (https://github.com/rust-lang/cargo/pull/2909)
+* [Allow enabling features for dependencies with `--features`]
+ (https://github.com/rust-lang/cargo/pull/2876)
+* [Add `--jobs` flag to `cargo package`]
+ (https://github.com/rust-lang/cargo/pull/2867)
+* [Add `--dry-run` to `cargo publish`]
+ (https://github.com/rust-lang/cargo/pull/2849)
+* [Add support for `RUSTDOCFLAGS`]
+ (https://github.com/rust-lang/cargo/pull/2794)
+
+Performance
+-----------
+
+* [`panic::catch_unwind` is more optimized]
+ (https://github.com/rust-lang/rust/pull/35444)
+* [`panic::catch_unwind` no longer accesses thread-local storage on entry]
+ (https://github.com/rust-lang/rust/pull/34866)
+
+Tooling
+-------
+
+* [Test binaries now support a `--test-threads` argument to specify the number
+ of threads used to run tests, and which acts the same as the
+ `RUST_TEST_THREADS` environment variable]
+ (https://github.com/rust-lang/rust/pull/35414)
+* [The test runner now emits a warning when tests run over 60 seconds]
+ (https://github.com/rust-lang/rust/pull/35405)
+* [rustdoc: Fix methods in search results]
+ (https://github.com/rust-lang/rust/pull/34752)
+* [`rust-lldb` warns about unsupported versions of LLDB]
+ (https://github.com/rust-lang/rust/pull/34646)
+* [Rust releases now come with source packages that can be installed by rustup
+ via `rustup component add rust-src`]
+ (https://github.com/rust-lang/rust/pull/34366).
+ The resulting source code can be used by tools and IDES, located in the
+ sysroot under `lib/rustlib/src`.
+
+Misc
+----
+
+* [The compiler can now be built against LLVM 3.9]
+ (https://github.com/rust-lang/rust/pull/35594)
+* Many minor improvements to the documentation.
+* [The Rust exception handling "personality" routine is now written in Rust]
+ (https://github.com/rust-lang/rust/pull/34832)
+
+Compatibility Notes
+-------------------
+
+* [When printing Windows `OsStr`s, unpaired surrogate codepoints are escaped
+ with the lowercase format instead of the uppercase]
+ (https://github.com/rust-lang/rust/pull/35084)
+* [When formatting strings, if "precision" is specified, the "fill",
+ "align" and "width" specifiers are no longer ignored]
+ (https://github.com/rust-lang/rust/pull/34544)
+* [The `Debug` impl for strings no longer escapes all non-ASCII characters]
+ (https://github.com/rust-lang/rust/pull/34485)
+
+
Version 1.11.0 (2016-08-18)
===========================
Performance
-----------
-* [The time complexity of comparing variables for equivalence during type
+* [The time complexity of comparing variables for equivalence during type
unification is reduced from _O_(_n_!) to _O_(_n_)][1.9tu]. This leads
to major compilation time improvement in some scenarios.
* [`ToString` is specialized for `str`, giving it the same performance
CFG_CPUTYPE=$(isainfo -n)
;;
+ Haiku)
+ CFG_OSTYPE=unknown-haiku
+ ;;
+
MINGW*)
# msys' `uname` does not print gcc configuration, but prints msys
# configuration. so we cannot believe `uname -m`:
CFG_CPUTYPE=x86_64
;;
+ BePC)
+ CFG_CPUTYPE=i686
+ ;;
+
*)
err "unknown CPU type: $CFG_CPUTYPE"
esac
valopt infodir "${CFG_PREFIX}/share/info" "install additional info"
valopt llvm-root "" "set LLVM root"
valopt python "" "set path to python"
-valopt nodejs "" "set path to nodejs"
valopt jemalloc-root "" "set directory where libjemalloc_pic.a is located"
valopt build "${DEFAULT_BUILD}" "GNUs ./configure syntax LLVM build triple"
valopt android-cross-path "" "Android NDK standalone path (deprecated)"
err "Found $python_version, but Python 2.7 is required"
fi
-# Checking for node, but not required
-probe CFG_NODEJS nodejs node
-
# If we have no git directory then we are probably a tarball distribution
# and shouldn't attempt to load submodules
if [ ! -e ${CFG_SRC_DIR}.git ]
--- /dev/null
+# i686-unknown-haiku configuration
+CROSS_PREFIX_i686-unknown-haiku=i586-pc-haiku-
+CC_i686-unknown-haiku=$(CC)
+CXX_i686-unknown-haiku=$(CXX)
+CPP_i686-unknown-haiku=$(CPP)
+AR_i686-unknown-haiku=$(AR)
+CFG_LIB_NAME_i686-unknown-haiku=lib$(1).so
+CFG_STATIC_LIB_NAME_i686-unknown-haiku=lib$(1).a
+CFG_LIB_GLOB_i686-unknown-haiku=lib$(1)-*.so
+CFG_LIB_DSYM_GLOB_i686-unknown-haiku=lib$(1)-*.dylib.dSYM
+CFG_CFLAGS_i686-unknown-haiku := -m32 $(CFLAGS)
+CFG_GCCISH_CFLAGS_i686-unknown-haiku := -Wall -Werror -g -fPIC -m32 $(CFLAGS)
+CFG_GCCISH_CXXFLAGS_i686-unknown-haiku := -fno-rtti $(CXXFLAGS)
+CFG_GCCISH_LINK_FLAGS_i686-unknown-haiku := -shared -fPIC -ldl -pthread -lrt -g -m32
+CFG_GCCISH_PRE_LIB_FLAGS_i686-unknown-haiku := -Wl,-whole-archive
+CFG_GCCISH_POST_LIB_FLAGS_i686-unknown-haiku := -Wl,-no-whole-archive
+CFG_DEF_SUFFIX_i686-unknown-haiku := .linux.def
+CFG_LLC_FLAGS_i686-unknown-haiku :=
+CFG_INSTALL_NAME_i686-unknown-haiku =
+CFG_EXE_SUFFIX_i686-unknown-haiku =
+CFG_WINDOWSY_i686-unknown-haiku :=
+CFG_UNIXY_i686-unknown-haiku := 1
+CFG_PATH_MUNGE_i686-unknown-haiku := true
+CFG_LDPATH_i686-unknown-haiku :=
+CFG_RUN_i686-unknown-haiku=$(2)
+CFG_RUN_TARG_i686-unknown-haiku=$(call CFG_RUN_i686-unknown-haiku,,$(2))
+CFG_GNU_TRIPLE_i686-unknown-haiku := i686-unknown-haiku
--- /dev/null
+# wasm32-unknown-emscripten configuration
+CC_wasm32-unknown-emscripten=emcc
+CXX_wasm32-unknown-emscripten=em++
+CPP_wasm32-unknown-emscripten=$(CPP)
+AR_wasm32-unknown-emscripten=emar
+CFG_LIB_NAME_wasm32-unknown-emscripten=lib$(1).so
+CFG_STATIC_LIB_NAME_wasm32-unknown-emscripten=lib$(1).a
+CFG_LIB_GLOB_wasm32-unknown-emscripten=lib$(1)-*.so
+CFG_LIB_DSYM_GLOB_wasm32-unknown-emscripten=lib$(1)-*.dylib.dSYM
+CFG_JEMALLOC_CFLAGS_wasm32-unknown-emscripten := -m32 $(CFLAGS)
+CFG_GCCISH_CFLAGS_wasm32-unknown-emscripten := -g -fPIC -m32 -s BINARYEN=1 $(CFLAGS)
+CFG_GCCISH_CXXFLAGS_wasm32-unknown-emscripten := -fno-rtti -s BINARYEN=1 $(CXXFLAGS)
+CFG_GCCISH_LINK_FLAGS_wasm32-unknown-emscripten := -shared -fPIC -ldl -pthread -lrt -g -m32 -s BINARYEN=1
+CFG_GCCISH_DEF_FLAG_wasm32-unknown-emscripten := -Wl,--export-dynamic,--dynamic-list=
+CFG_LLC_FLAGS_wasm32-unknown-emscripten :=
+CFG_INSTALL_NAME_wasm32-unknown-emscripten =
+CFG_EXE_SUFFIX_wasm32-unknown-emscripten =
+CFG_WINDOWSY_wasm32-unknown-emscripten :=
+CFG_UNIXY_wasm32-unknown-emscripten := 1
+CFG_LDPATH_wasm32-unknown-emscripten :=
+CFG_RUN_wasm32-unknown-emscripten=$(2)
+CFG_RUN_TARG_wasm32-unknown-emscripten=$(call CFG_RUN_wasm32-unknown-emscripten,,$(2))
+CFG_GNU_TRIPLE_wasm32-unknown-emscripten := wasm32-unknown-emscripten
+CFG_DISABLE_JEMALLOC_wasm32-unknown-emscripten := 1
--- /dev/null
+# x86_64-unknown-haiku configuration
+CROSS_PREFIX_x86_64-unknown-haiku=x86_64-unknown-haiku-
+CC_x86_64-unknown-haiku=$(CC)
+CXX_x86_64-unknown-haiku=$(CXX)
+CPP_x86_64-unknown-haiku=$(CPP)
+AR_x86_64-unknown-haiku=$(AR)
+CFG_LIB_NAME_x86_64-unknown-haiku=lib$(1).so
+CFG_STATIC_LIB_NAME_x86_64-unknown-haiku=lib$(1).a
+CFG_LIB_GLOB_x86_64-unknown-haiku=lib$(1)-*.so
+CFG_LIB_DSYM_GLOB_x86_64-unknown-haiku=lib$(1)-*.dylib.dSYM
+CFG_CFLAGS_x86_64-unknown-haiku := -m64 $(CFLAGS)
+CFG_GCCISH_CFLAGS_x86_64-unknown-haiku := -Wall -Werror -g -fPIC -m64 $(CFLAGS)
+CFG_GCCISH_CXXFLAGS_x86_64-unknown-haiku := -fno-rtti $(CXXFLAGS)
+CFG_GCCISH_LINK_FLAGS_x86_64-unknown-haiku := -shared -fPIC -ldl -pthread -lrt -g -m64
+CFG_GCCISH_PRE_LIB_FLAGS_x86_64-unknown-haiku := -Wl,-whole-archive
+CFG_GCCISH_POST_LIB_FLAGS_x86_64-unknown-haiku := -Wl,-no-whole-archive
+CFG_DEF_SUFFIX_x86_64-unknown-haiku := .linux.def
+CFG_LLC_FLAGS_x86_64-unknown-haiku :=
+CFG_INSTALL_NAME_x86_64-unknown-haiku =
+CFG_EXE_SUFFIX_x86_64-unknown-haiku =
+CFG_WINDOWSY_x86_64-unknown-haiku :=
+CFG_UNIXY_x86_64-unknown-haiku := 1
+CFG_PATH_MUNGE_x86_64-unknown-haiku := true
+CFG_LDPATH_x86_64-unknown-haiku :=
+CFG_RUN_x86_64-unknown-haiku=$(2)
+CFG_RUN_TARG_x86_64-unknown-haiku=$(call CFG_RUN_x86_64-unknown-haiku,,$(2))
+CFG_GNU_TRIPLE_x86_64-unknown-haiku := x86_64-unknown-haiku
######################################################################
# The version number
-CFG_RELEASE_NUM=1.13.0
+CFG_RELEASE_NUM=1.14.0
# An optional number to put after the label, e.g. '.2' -> '-beta.2'
# NB Make sure it starts with a dot to conform to semver pre-release
# LLVM macros
######################################################################
-LLVM_OPTIONAL_COMPONENTS=x86 arm aarch64 mips powerpc pnacl systemz
+LLVM_OPTIONAL_COMPONENTS=x86 arm aarch64 mips powerpc pnacl systemz jsbackend
LLVM_REQUIRED_COMPONENTS=ipo bitreader bitwriter linker asmparser mcjit \
interpreter instrumentation
else
ifeq ($$(CFG_WINDOWSY_$(3)),1)
LD_LIBRARY_PATH_ENV_NAME$(1)_T_$(2)_H_$(3) := PATH
+else
+ifeq ($$(OSTYPE_$(3)),unknown-haiku)
+ LD_LIBRARY_PATH_ENV_NAME$(1)_T_$(2)_H_$(3) := LIBRARY_PATH
else
LD_LIBRARY_PATH_ENV_NAME$(1)_T_$(2)_H_$(3) := LD_LIBRARY_PATH
endif
endif
+endif
LD_LIBRARY_PATH_ENV_HOSTDIR$(1)_T_$(2)_H_$(3) := \
$$(CURDIR)/$$(HLIB$(1)_H_$(3)):$$(CFG_LLVM_INST_DIR_$(3))/lib
"build_helper 0.1.0",
"cmake 0.1.17 (registry+https://github.com/rust-lang/crates.io-index)",
"filetime 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)",
- "gcc 0.3.31 (git+https://github.com/alexcrichton/gcc-rs)",
+ "gcc 0.3.35 (git+https://github.com/alexcrichton/gcc-rs)",
"getopts 0.2.14 (registry+https://github.com/rust-lang/crates.io-index)",
"kernel32-sys 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.10 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.15 (registry+https://github.com/rust-lang/crates.io-index)",
"md5 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "num_cpus 0.2.11 (registry+https://github.com/rust-lang/crates.io-index)",
+ "num_cpus 0.2.13 (registry+https://github.com/rust-lang/crates.io-index)",
"regex 0.1.73 (registry+https://github.com/rust-lang/crates.io-index)",
"rustc-serialize 0.3.19 (registry+https://github.com/rust-lang/crates.io-index)",
- "toml 0.1.28 (registry+https://github.com/rust-lang/crates.io-index)",
- "winapi 0.2.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "toml 0.1.30 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winapi 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
]
[[package]]
version = "0.1.17"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
- "gcc 0.3.31 (registry+https://github.com/rust-lang/crates.io-index)",
+ "gcc 0.3.35 (registry+https://github.com/rust-lang/crates.io-index)",
]
[[package]]
version = "0.1.10"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
- "libc 0.2.10 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.15 (registry+https://github.com/rust-lang/crates.io-index)",
]
[[package]]
name = "gcc"
-version = "0.3.31"
-source = "git+https://github.com/alexcrichton/gcc-rs#b8e2400883f1a2749b323354dad372cdd1c838c7"
+version = "0.3.35"
+source = "git+https://github.com/alexcrichton/gcc-rs#8ff5360b6e0dc4f3c9d3f71036f1ff403c68469d"
[[package]]
name = "gcc"
-version = "0.3.31"
+version = "0.3.35"
source = "registry+https://github.com/rust-lang/crates.io-index"
[[package]]
version = "0.2.2"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
- "winapi 0.2.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winapi 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
"winapi-build 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
]
[[package]]
name = "libc"
-version = "0.2.10"
+version = "0.2.15"
source = "registry+https://github.com/rust-lang/crates.io-index"
[[package]]
version = "0.1.11"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
- "libc 0.2.10 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.15 (registry+https://github.com/rust-lang/crates.io-index)",
]
[[package]]
name = "num_cpus"
-version = "0.2.11"
+version = "0.2.13"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
- "libc 0.2.10 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.15 (registry+https://github.com/rust-lang/crates.io-index)",
]
[[package]]
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
"kernel32-sys 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.10 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.15 (registry+https://github.com/rust-lang/crates.io-index)",
]
[[package]]
[[package]]
name = "toml"
-version = "0.1.28"
+version = "0.1.30"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
"rustc-serialize 0.3.19 (registry+https://github.com/rust-lang/crates.io-index)",
[[package]]
name = "winapi"
-version = "0.2.6"
+version = "0.2.8"
source = "registry+https://github.com/rust-lang/crates.io-index"
[[package]]
"checksum aho-corasick 0.5.2 (registry+https://github.com/rust-lang/crates.io-index)" = "2b3fb52b09c1710b961acb35390d514be82e4ac96a9969a8e38565a29b878dc9"
"checksum cmake 0.1.17 (registry+https://github.com/rust-lang/crates.io-index)" = "dfcf5bcece56ef953b8ea042509e9dcbdfe97820b7e20d86beb53df30ed94978"
"checksum filetime 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)" = "5363ab8e4139b8568a6237db5248646e5a8a2f89bd5ccb02092182b11fd3e922"
-"checksum gcc 0.3.31 (git+https://github.com/alexcrichton/gcc-rs)" = "<none>"
-"checksum gcc 0.3.31 (registry+https://github.com/rust-lang/crates.io-index)" = "cfe877476e53690ebb0ce7325d0bf43e198d9500291b54b3c65e518de5039b07"
+"checksum gcc 0.3.35 (git+https://github.com/alexcrichton/gcc-rs)" = "<none>"
+"checksum gcc 0.3.35 (registry+https://github.com/rust-lang/crates.io-index)" = "91ecd03771effb0c968fd6950b37e89476a578aaf1c70297d8e92b6516ec3312"
"checksum getopts 0.2.14 (registry+https://github.com/rust-lang/crates.io-index)" = "d9047cfbd08a437050b363d35ef160452c5fe8ea5187ae0a624708c91581d685"
"checksum kernel32-sys 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)" = "7507624b29483431c0ba2d82aece8ca6cdba9382bff4ddd0f7490560c056098d"
-"checksum libc 0.2.10 (registry+https://github.com/rust-lang/crates.io-index)" = "55f3730be7e803cf350d32061958171731c2395831fbd67a61083782808183e0"
+"checksum libc 0.2.15 (registry+https://github.com/rust-lang/crates.io-index)" = "23e3757828fa702a20072c37ff47938e9dd331b92fac6e223d26d4b7a55f7ee2"
"checksum md5 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "a5539a8dee9b4ae308c9c406a379838b435a8f2c84cf9fedc6d5a576be9888db"
"checksum memchr 0.1.11 (registry+https://github.com/rust-lang/crates.io-index)" = "d8b629fb514376c675b98c1421e80b151d3817ac42d7c667717d282761418d20"
-"checksum num_cpus 0.2.11 (registry+https://github.com/rust-lang/crates.io-index)" = "51fedae97a05f7353612fe017ab705a37e6db8f4d67c5c6fe739a9e70d6eed09"
+"checksum num_cpus 0.2.13 (registry+https://github.com/rust-lang/crates.io-index)" = "cee7e88156f3f9e19bdd598f8d6c9db7bf4078f99f8381f43a55b09648d1a6e3"
"checksum regex 0.1.73 (registry+https://github.com/rust-lang/crates.io-index)" = "56b7ee9f764ecf412c6e2fff779bca4b22980517ae335a21aeaf4e32625a5df2"
"checksum regex-syntax 0.3.4 (registry+https://github.com/rust-lang/crates.io-index)" = "31040aad7470ad9d8c46302dcffba337bb4289ca5da2e3cd6e37b64109a85199"
"checksum rustc-serialize 0.3.19 (registry+https://github.com/rust-lang/crates.io-index)" = "6159e4e6e559c81bd706afe9c8fd68f547d3e851ce12e76b1de7914bab61691b"
"checksum thread-id 2.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "a9539db560102d1cef46b8b78ce737ff0bb64e7e18d35b2a5688f7d097d0ff03"
"checksum thread_local 0.2.6 (registry+https://github.com/rust-lang/crates.io-index)" = "55dd963dbaeadc08aa7266bf7f91c3154a7805e32bb94b820b769d2ef3b4744d"
-"checksum toml 0.1.28 (registry+https://github.com/rust-lang/crates.io-index)" = "fcd27a04ca509aff336ba5eb2abc58d456f52c4ff64d9724d88acb85ead560b6"
+"checksum toml 0.1.30 (registry+https://github.com/rust-lang/crates.io-index)" = "0590d72182e50e879c4da3b11c6488dae18fccb1ae0c7a3eda18e16795844796"
"checksum utf8-ranges 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)" = "a1ca13c08c41c9c3e04224ed9ff80461d97e121589ff27c753a16cb10830ae0f"
-"checksum winapi 0.2.6 (registry+https://github.com/rust-lang/crates.io-index)" = "4dfaaa8fbdaa618fa6914b59b2769d690dd7521920a18d84b42d254678dd5fd4"
+"checksum winapi 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)" = "167dc9d6949a9b857f3451275e911c3f44255842c1f7a76f33c55103a909087a"
"checksum winapi-build 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "2d315eee3b34aca4797b2da6b13ed88266e6d612562a0c46390af8299fc699bc"
let is_panic_abort = args.windows(2).any(|a| {
&*a[0] == "--crate-name" && &*a[1] == "panic_abort"
});
- // FIXME(stage0): remove this `stage != "0"` condition
- if is_panic_abort && stage != "0" {
+ if is_panic_abort {
cmd.arg("-C").arg("panic=abort");
}
cmd.arg("--host").arg(compiler.host);
cmd.arg("--llvm-filecheck").arg(build.llvm_filecheck(&build.config.build));
+ if let Some(nodejs) = build.config.nodejs.as_ref() {
+ cmd.arg("--nodejs").arg(nodejs);
+ }
+
let mut flags = vec!["-Crpath".to_string()];
if build.config.rust_optimize_tests {
flags.push("-O".to_string());
if target.contains("android") {
build.run(cargo.arg("--no-run"));
krate_android(build, compiler, target, mode);
+ } else if target.contains("emscripten") {
+ build.run(cargo.arg("--no-run"));
+ krate_emscripten(build, compiler, target, mode);
} else {
cargo.args(&build.flags.args);
build.run(&mut cargo);
}
}
+fn krate_emscripten(build: &Build,
+ compiler: &Compiler,
+ target: &str,
+ mode: Mode) {
+ let mut tests = Vec::new();
+ let out_dir = build.cargo_out(compiler, mode, target);
+ find_tests(&out_dir, target, &mut tests);
+ find_tests(&out_dir.join("deps"), target, &mut tests);
+
+ for test in tests {
+ let test_file_name = test.to_string_lossy().into_owned();
+ println!("running {}", test_file_name);
+ let nodejs = build.config.nodejs.as_ref().expect("nodejs not configured");
+ let status = Command::new(nodejs)
+ .arg(&test_file_name)
+ .stderr(::std::process::Stdio::inherit())
+ .status();
+ match status {
+ Ok(status) => {
+ if !status.success() {
+ panic!("some tests failed");
+ }
+ }
+ Err(e) => panic!(format!("failed to execute command: {}", e)),
+ };
+ }
+ }
+
+
fn find_tests(dir: &Path,
target: &str,
dst: &mut Vec<PathBuf>) {
}
let filename = e.file_name().into_string().unwrap();
if (target.contains("windows") && filename.ends_with(".exe")) ||
- (!target.contains("windows") && !filename.contains(".")) {
+ (!target.contains("windows") && !filename.contains(".")) ||
+ (target.contains("emscripten") && filename.contains(".js")){
dst.push(e.path());
}
}
use build_helper::output;
use filetime::FileTime;
-use util::{exe, staticlib, libdir, mtime, is_dylib, copy};
+use util::{exe, libdir, mtime, is_dylib, copy};
use {Build, Compiler, Mode};
/// Build the standard library.
let libdir = build.sysroot_libdir(compiler, target);
let _ = fs::remove_dir_all(&libdir);
t!(fs::create_dir_all(&libdir));
- // FIXME(stage0) remove this `if` after the next snapshot
- // The stage0 compiler still passes the `-lcompiler-rt` flag to the linker but now `bootstrap`
- // never builds a `libcopmiler-rt.a`! We'll fill the hole by simply copying stage0's
- // `libcompiler-rt.a` to where the stage1's one is expected (though we could as well just use
- // an empty `.a` archive). Note that the symbols of that stage0 `libcompiler-rt.a` won't make
- // it to the final binary because now `libcore.rlib` also contains the symbols that
- // `libcompiler-rt.a` provides. Since that rlib appears first in the linker arguments, its
- // symbols are used instead of `libcompiler-rt.a`'s.
- if compiler.stage == 0 {
- let rtlib = &staticlib("compiler-rt", target);
- let src = build.rustc.parent().unwrap().parent().unwrap().join("lib").join("rustlib")
- .join(target).join("lib").join(rtlib);
- copy(&src, &libdir.join(rtlib));
- }
// Some platforms have startup objects that may be required to produce the
// libstd dynamic library, for example.
self.rustc = Some(PathBuf::from(value).join("bin/rustc"));
self.cargo = Some(PathBuf::from(value).join("bin/cargo"));
}
- "CFG_NODEJS" if value.len() > 0 => {
- self.nodejs = Some(PathBuf::from(value));
- }
_ => {}
}
}
// Almost all of these are simple one-liners that shell out to the
// corresponding functionality in the extra modules, where more
// documentation can be found.
- for target in step::all(self) {
+ let steps = step::all(self);
+
+ self.verbose("bootstrap build plan:");
+ for step in &steps {
+ self.verbose(&format!("{:?}", step));
+ }
+
+ for target in steps {
let doc_out = self.out.join(&target.target).join("doc");
match target.src {
Llvm { _dummy } => {
continue
}
+ // `submodule.path` is the relative path to a submodule (from the repository root)
+ // `submodule_path` is the path to a submodule from the cwd
+
+ // use `submodule.path` when e.g. executing a submodule specific command from the
+ // repository root
+ // use `submodule_path` when e.g. executing a normal git command for the submodule
+ // (set via `current_dir`)
+ let submodule_path = self.src.join(submodule.path);
+
match submodule.state {
State::MaybeDirty => {
// drop staged changes
- self.run(git().arg("-C").arg(submodule.path).args(&["reset", "--hard"]));
+ self.run(git().current_dir(&submodule_path)
+ .args(&["reset", "--hard"]));
// drops unstaged changes
- self.run(git().arg("-C").arg(submodule.path).args(&["clean", "-fdx"]));
+ self.run(git().current_dir(&submodule_path)
+ .args(&["clean", "-fdx"]));
},
State::NotInitialized => {
self.run(git_submodule().arg("init").arg(submodule.path));
State::OutOfSync => {
// drops submodule commits that weren't reported to the (outer) git repository
self.run(git_submodule().arg("update").arg(submodule.path));
- self.run(git().arg("-C").arg(submodule.path).args(&["reset", "--hard"]));
- self.run(git().arg("-C").arg(submodule.path).args(&["clean", "-fdx"]));
+ self.run(git().current_dir(&submodule_path)
+ .args(&["reset", "--hard"]));
+ self.run(git().current_dir(&submodule_path)
+ .args(&["clean", "-fdx"]));
},
}
}
.env(format!("CFLAGS_{}", target), self.cflags(target).join(" "));
}
- // If we're building for OSX, inform the compiler and the linker that
- // we want to build a compiler runnable on 10.7
- if target.contains("apple-darwin") {
- cargo.env("MACOSX_DEPLOYMENT_TARGET", "10.7");
- }
-
// Environment variables *required* needed throughout the build
//
// FIXME: should update code to not require this env var
// LLVM/jemalloc/etc are all properly compiled.
if target.contains("apple-darwin") {
base.push("-stdlib=libc++".into());
- base.push("-mmacosx-version-min=10.7".into());
}
// This is a hack, because newer binutils broke things on some vms/distros
// (i.e., linking against unknown relocs disabled by the following flag)
// than an entry here.
let mut base = Vec::new();
- if target != self.config.build && !target.contains("msvc") {
+ if target != self.config.build && !target.contains("msvc") &&
+ !target.contains("emscripten") {
base.push(format!("-Clinker={}", self.cc(target).display()));
}
return base
.out_dir(&dst)
.profile(if build.config.llvm_optimize {"Release"} else {"Debug"})
.define("LLVM_ENABLE_ASSERTIONS", assertions)
- .define("LLVM_TARGETS_TO_BUILD", "X86;ARM;AArch64;Mips;PowerPC;SystemZ")
+ .define("LLVM_TARGETS_TO_BUILD", "X86;ARM;AArch64;Mips;PowerPC;SystemZ;JSBackend")
.define("LLVM_INCLUDE_EXAMPLES", "OFF")
.define("LLVM_INCLUDE_TESTS", "OFF")
.define("LLVM_INCLUDE_DOCS", "OFF")
panic!("PATH contains invalid character '\"'");
}
}
- let mut need_cmd = |cmd: &OsStr| {
- if !checked.insert(cmd.to_owned()) {
- return
- }
+ let have_cmd = |cmd: &OsStr| {
for path in env::split_paths(&path).map(|p| p.join(cmd)) {
if fs::metadata(&path).is_ok() ||
fs::metadata(path.with_extension("exe")).is_ok() {
- return
+ return Some(path);
}
}
- panic!("\n\ncouldn't find required command: {:?}\n\n", cmd);
+ return None;
+ };
+
+ let mut need_cmd = |cmd: &OsStr| {
+ if !checked.insert(cmd.to_owned()) {
+ return
+ }
+ if have_cmd(cmd).is_none() {
+ panic!("\n\ncouldn't find required command: {:?}\n\n", cmd);
+ }
};
// If we've got a git directory we're gona need git to update
need_cmd("python".as_ref());
- // If a manual nodejs was added to the config,
- // of if a nodejs install is detected through config, use it.
+ // Look for the nodejs command, needed for emscripten testing
+ if let Some(node) = have_cmd("node".as_ref()) {
+ build.config.nodejs = Some(node);
+ } else if let Some(node) = have_cmd("nodejs".as_ref()) {
+ build.config.nodejs = Some(node);
+ }
+
if let Some(ref s) = build.config.nodejs {
need_cmd(s.as_ref());
}
// We're gonna build some custom C code here and there, host triples
// also build some C++ shims for LLVM so we need a C++ compiler.
for target in build.config.target.iter() {
+ // On emscripten we don't actually need the C compiler to just
+ // build the target artifacts, only for testing. For the sake
+ // of easier bot configuration, just skip detection.
+ if target.contains("emscripten") {
+ continue;
+ }
+
need_cmd(build.cc(target).as_ref());
if let Some(ar) = build.ar(target) {
need_cmd(ar.as_ref());
need_cmd(build.cxx(host).as_ref());
}
+ // The msvc hosts don't use jemalloc, turn it off globally to
+ // avoid packaging the dummy liballoc_jemalloc on that platform.
+ for host in build.config.host.iter() {
+ if host.contains("msvc") {
+ build.config.use_jemalloc = false;
+ }
+ }
+
// Externally configured LLVM requires FileCheck to exist
let filecheck = build.llvm_filecheck(&build.config.build);
if !filecheck.starts_with(&build.out) && !filecheck.exists() && build.config.codegen_tests {
}
for target in build.config.target.iter() {
- // Either can't build or don't want to run jemalloc on these targets
- if target.contains("rumprun") ||
- target.contains("bitrig") ||
- target.contains("openbsd") ||
- target.contains("msvc") ||
- target.contains("emscripten") {
- build.config.use_jemalloc = false;
- }
-
// Can't compile for iOS unless we're on OSX
if target.contains("apple-ios") &&
!build.config.build.contains("apple-darwin") {
/// into a topologically sorted list which when executed left-to-right will
/// correctly sequence the entire build.
pub fn all(build: &Build) -> Vec<Step> {
+ build.verbose("inferred build steps:");
+
let mut ret = Vec::new();
let mut all = HashSet::new();
for target in top_level(build) {
set: &mut HashSet<Step<'a>>) {
if set.insert(target.clone()) {
for dep in target.deps(build) {
+ build.verbose(&format!("{:?}\n -> {:?}", target, dep));
fill(build, &dep, ret, set);
}
ret.push(target.clone());
self.check_crate_std(compiler),
self.check_crate_test(compiler),
self.check_debuginfo(compiler),
- self.dist(stage),
];
// If we're testing the build triple, then we know we can
// misc
self.check_linkcheck(stage),
self.check_tidy(stage),
+
+ // can we make the distributables?
+ self.dist(stage),
]);
}
return base
-Subproject commit 8598065bd965d9713bfafb6c1e766d63a7b17b89
+Subproject commit f03ba5a4e8bf16dcf42dd742a4ce255c36321356
`"C:\Program Files\Rust stable GNU 1.x\bin"`.
Rust does not do its own linking, and so you’ll need to have a linker
-installed. Doing so will depend on your specific system, consult its
-documentation for more details.
-
-If not, there are a number of places where we can get help. The easiest is
-[the #rust-beginners IRC channel on irc.mozilla.org][irc-beginners] and for
-general discussion [the #rust IRC channel on irc.mozilla.org][irc], which we
+installed. Doing so will depend on your specific system. For
+Linux-based systems, Rust will attempt to call `cc` for linking. On
+`windows-msvc` (Rust built on Windows with Microsoft Visual Studio),
+this depends on having [Microsoft Visual C++ Build Tools][msvbt]
+installed. These do not need to be in `%PATH%` as `rustc` will find
+them automatically. In general, if you have your linker in a
+non-traditional location you can call `rustc
+linker=/path/to/cc`, where `/path/to/cc` should point to your linker path.
+
+[msvbt]: http://landinghub.visualstudio.com/visual-cpp-build-tools
+
+If you are still stuck, there are a number of places where we can get
+help. The easiest is
+[the #rust-beginners IRC channel on irc.mozilla.org][irc-beginners]
+and for general discussion
+[the #rust IRC channel on irc.mozilla.org][irc], which we
can access through [Mibbit][mibbit]. Then we'll be chatting with other
Rustaceans (a silly nickname we call ourselves) who can help us out. Other great
resources include [the user’s forum][users] and [Stack Overflow][stackoverflow].
## Writing and Running a Rust Program
-Next, make a new source file and call it *main.rs*. Rust files always end
-in a *.rs* extension. If you’re using more than one word in your filename, use
-an underscore to separate them; for example, you'd use *hello_world.rs* rather
-than *helloworld.rs*.
+We need to create a source file for our Rust program. Rust files always end
+in a *.rs* extension. If you are using more than one word in your filename,
+use an underscore to separate them; for example, you would use
+*my_program.rs* rather than *myprogram.rs*.
-Now open the *main.rs* file you just created, and type the following code:
+Now, make a new file and call it *main.rs*. Open the file and type
+the following code:
```rust
fn main() {
return v.iter().fold(0, |a, &b| a + b);
}
// Borrow two vectors and sum them.
- // This kind of borrowing does not allow mutation to the borrowed.
+ // This kind of borrowing does not allow mutation through the borrowed reference.
fn foo(v1: &Vec<i32>, v2: &Vec<i32>) -> i32 {
// do stuff with v1 and v2
let s1 = sum_vec(v1);
* `-` (`- expr`): arithmetic negation. Overloadable (`Neg`).
* `-=` (`var -= expr`): arithmetic subtraction & assignment. Overloadable (`SubAssign`).
* `->` (`fn(…) -> type`, `|…| -> type`): function and closure return type. See [Functions], [Closures].
-* `-> !` (`fn(…) -> !`, `|…| -> !`): diverging function or closure. See [Diverging Functions].
* `.` (`expr.ident`): member access. See [Structs], [Method Syntax].
* `..` (`..`, `expr..`, `..expr`, `expr..expr`): right-exclusive range literal.
* `..` (`..expr`): struct literal update syntax. See [Structs (Update syntax)].
* `/*!…*/`: inner block doc comment. See [Comments].
* `/**…*/`: outer block doc comment. See [Comments].
+<!-- Special types -->
+
+* `!`: always empty Never type. See [Diverging Functions].
+
<!-- Various things involving parens and tuples -->
* `()`: empty tuple (*a.k.a.* unit), both literal and type.
Rust will not let us use a value that has not been initialized.
-Let take a minute to talk about this stuff we've added to `println!`.
+Let us take a minute to talk about this stuff we've added to `println!`.
If you include two curly braces (`{}`, some call them moustaches...) in your
string to print, Rust will interpret this as a request to interpolate some sort
bound := path | lifetime
```
+### Never type
+An empty type
+
+```antlr
+never_type : "!" ;
+```
+
### Object types
**FIXME:** grammar?
found, `.deref()` is called and the compiler continues to search for the method
implementation in the returned type `U`.
+## The `Send` trait
+
+The `Send` trait indicates that a value of this type is safe to send from one
+thread to another.
+
+## The 'Sync' trait
+
+The 'Sync' trait indicates that a value of this type is safe to share between
+multiple threads.
+
# Memory model
A Rust program's memory consists of a static set of *items* and a *heap*.
OS=`uname -s`
case $OS in
- ("Linux"|"FreeBSD"|"DragonFly"|"Bitrig"|"OpenBSD"|"SunOS")
+ ("Linux"|"FreeBSD"|"DragonFly"|"Bitrig"|"OpenBSD"|"SunOS"|"Haiku")
BIN_SUF=
LIB_SUF=.so
;;
/// }
/// ```
-#[cfg_attr(stage0, unsafe_no_drop_flag)]
#[stable(feature = "rust1", since = "1.0.0")]
pub struct Arc<T: ?Sized> {
ptr: Shared<ArcInner<T>>,
/// nodes behind strong `Arc<T>` pointers, and then storing the parent pointers
/// as `Weak<T>` pointers.
-#[cfg_attr(stage0, unsafe_no_drop_flag)]
#[stable(feature = "arc_weak", since = "1.4.0")]
pub struct Weak<T: ?Sized> {
ptr: Shared<ArcInner<T>>,
}
#[test]
+ #[cfg_attr(target_os = "emscripten", ignore)]
fn manually_share_arc() {
let v = vec![1, 2, 3, 4, 5, 6, 7, 8, 9, 10];
let arc_v = Arc::new(v);
/// the destructor of `T` and free the allocated memory. Since the
/// way `Box` allocates and releases memory is unspecified, the
/// only valid pointer to pass to this function is the one taken
- /// from another `Box` via the `Box::into_raw` function.
+ /// from another `Box` via the [`Box::into_raw`] function.
///
/// This function is unsafe because improper use may lead to
/// memory problems. For example, a double-free may occur if the
/// function is called twice on the same raw pointer.
///
+ /// [`Box::into_raw`]: struct.Box.html#method.into_raw
+ ///
/// # Examples
///
/// ```
/// memory previously managed by the `Box`. In particular, the
/// caller should properly destroy `T` and release the memory. The
/// proper way to do so is to convert the raw pointer back into a
- /// `Box` with the `Box::from_raw` function.
+ /// `Box` with the [`Box::from_raw`] function.
///
/// Note: this is an associated function, which means that you have
/// to call it as `Box::into_raw(b)` instead of `b.into_raw()`. This
/// is so that there is no conflict with a method on the inner type.
///
+ /// [`Box::from_raw`]: struct.Box.html#method.from_raw
+ ///
/// # Examples
///
/// ```
#![feature(staged_api)]
#![feature(unboxed_closures)]
#![feature(unique)]
-#![cfg_attr(stage0, feature(unsafe_no_drop_flag))]
#![feature(unsize)]
#![cfg_attr(not(test), feature(fused, fn_traits, placement_new_protocol))]
/// `shrink_to_fit`, and `from_box` will actually set RawVec's private capacity
/// field. This allows zero-sized types to not be special-cased by consumers of
/// this type.
-#[cfg_attr(stage0, unsafe_no_drop_flag)]
pub struct RawVec<T> {
ptr: Unique<T>,
cap: usize,
/// that you have to call them as e.g. `Rc::get_mut(&value)` instead of
/// `value.get_mut()`. This avoids conflicts with methods of the inner
/// type `T`.
-#[cfg_attr(stage0, unsafe_no_drop_flag)]
#[stable(feature = "rust1", since = "1.0.0")]
pub struct Rc<T: ?Sized> {
ptr: Shared<RcBox<T>>,
///
/// [rc]: struct.Rc.html
/// [downgrade]: struct.Rc.html#method.downgrade
-#[cfg_attr(stage0, unsafe_no_drop_flag)]
#[stable(feature = "rc_weak", since = "1.4.0")]
pub struct Weak<T: ?Sized> {
ptr: Shared<RcBox<T>>,
let build_dir = PathBuf::from(env::var_os("OUT_DIR").unwrap());
let src_dir = env::current_dir().unwrap();
+ // FIXME: This is a hack to support building targets that don't
+ // support jemalloc alongside hosts that do. The jemalloc build is
+ // controlled by a feature of the std crate, and if that feature
+ // changes between targets, it invalidates the fingerprint of
+ // std's build script (this is a cargo bug); so we must ensure
+ // that the feature set used by std is the same across all
+ // targets, which means we have to build the alloc_jemalloc crate
+ // for targets like emscripten, even if we don't use it.
+ if target.contains("rumprun") ||
+ target.contains("bitrig") ||
+ target.contains("openbsd") ||
+ target.contains("msvc") ||
+ target.contains("emscripten")
+ {
+ println!("cargo:rustc-cfg=dummy_jemalloc");
+ return;
+ }
+
if let Some(jemalloc) = env::var_os("JEMALLOC_OVERRIDE") {
let jemalloc = PathBuf::from(jemalloc);
println!("cargo:rustc-link-search=native={}",
extern crate libc;
-use libc::{c_int, c_void, size_t};
+pub use imp::*;
-// Linkage directives to pull in jemalloc and its dependencies.
-//
-// On some platforms we need to be sure to link in `pthread` which jemalloc
-// depends on, and specifically on android we need to also link to libgcc.
-// Currently jemalloc is compiled with gcc which will generate calls to
-// intrinsics that are libgcc specific (e.g. those intrinsics aren't present in
-// libcompiler-rt), so link that in to get that support.
-#[link(name = "jemalloc", kind = "static")]
-#[cfg_attr(target_os = "android", link(name = "gcc"))]
-#[cfg_attr(all(not(windows),
- not(target_os = "android"),
- not(target_env = "musl")),
- link(name = "pthread"))]
-#[cfg(not(cargobuild))]
-extern "C" {}
-
-// Note that the symbols here are prefixed by default on OSX and Windows (we
-// don't explicitly request it), and on Android and DragonFly we explicitly
-// request it as unprefixing cause segfaults (mismatches in allocators).
-extern "C" {
- #[cfg_attr(any(target_os = "macos", target_os = "android", target_os = "ios",
- target_os = "dragonfly", target_os = "windows"),
- link_name = "je_mallocx")]
- fn mallocx(size: size_t, flags: c_int) -> *mut c_void;
- #[cfg_attr(any(target_os = "macos", target_os = "android", target_os = "ios",
- target_os = "dragonfly", target_os = "windows"),
- link_name = "je_rallocx")]
- fn rallocx(ptr: *mut c_void, size: size_t, flags: c_int) -> *mut c_void;
- #[cfg_attr(any(target_os = "macos", target_os = "android", target_os = "ios",
- target_os = "dragonfly", target_os = "windows"),
- link_name = "je_xallocx")]
- fn xallocx(ptr: *mut c_void, size: size_t, extra: size_t, flags: c_int) -> size_t;
- #[cfg_attr(any(target_os = "macos", target_os = "android", target_os = "ios",
- target_os = "dragonfly", target_os = "windows"),
- link_name = "je_sdallocx")]
- fn sdallocx(ptr: *mut c_void, size: size_t, flags: c_int);
- #[cfg_attr(any(target_os = "macos", target_os = "android", target_os = "ios",
- target_os = "dragonfly", target_os = "windows"),
- link_name = "je_nallocx")]
- fn nallocx(size: size_t, flags: c_int) -> size_t;
-}
+// See comments in build.rs for why we sometimes build a crate that does nothing
+#[cfg(not(dummy_jemalloc))]
+mod imp {
+ use libc::{c_int, c_void, size_t};
-// The minimum alignment guaranteed by the architecture. This value is used to
-// add fast paths for low alignment values. In practice, the alignment is a
-// constant at the call site and the branch will be optimized out.
-#[cfg(all(any(target_arch = "arm",
- target_arch = "mips",
- target_arch = "powerpc")))]
-const MIN_ALIGN: usize = 8;
-#[cfg(all(any(target_arch = "x86",
- target_arch = "x86_64",
- target_arch = "aarch64",
- target_arch = "powerpc64",
- target_arch = "mips64",
- target_arch = "s390x")))]
-const MIN_ALIGN: usize = 16;
-
-// MALLOCX_ALIGN(a) macro
-fn mallocx_align(a: usize) -> c_int {
- a.trailing_zeros() as c_int
-}
+ // Linkage directives to pull in jemalloc and its dependencies.
+ //
+ // On some platforms we need to be sure to link in `pthread` which jemalloc
+ // depends on, and specifically on android we need to also link to libgcc.
+ // Currently jemalloc is compiled with gcc which will generate calls to
+ // intrinsics that are libgcc specific (e.g. those intrinsics aren't present in
+ // libcompiler-rt), so link that in to get that support.
+ #[link(name = "jemalloc", kind = "static")]
+ #[cfg_attr(target_os = "android", link(name = "gcc"))]
+ #[cfg_attr(all(not(windows),
+ not(target_os = "android"),
+ not(target_env = "musl")),
+ link(name = "pthread"))]
+ #[cfg(not(cargobuild))]
+ extern "C" {}
+
+ // Note that the symbols here are prefixed by default on OSX and Windows (we
+ // don't explicitly request it), and on Android and DragonFly we explicitly
+ // request it as unprefixing cause segfaults (mismatches in allocators).
+ extern "C" {
+ #[cfg_attr(any(target_os = "macos", target_os = "android", target_os = "ios",
+ target_os = "dragonfly", target_os = "windows"),
+ link_name = "je_mallocx")]
+ fn mallocx(size: size_t, flags: c_int) -> *mut c_void;
+ #[cfg_attr(any(target_os = "macos", target_os = "android", target_os = "ios",
+ target_os = "dragonfly", target_os = "windows"),
+ link_name = "je_rallocx")]
+ fn rallocx(ptr: *mut c_void, size: size_t, flags: c_int) -> *mut c_void;
+ #[cfg_attr(any(target_os = "macos", target_os = "android", target_os = "ios",
+ target_os = "dragonfly", target_os = "windows"),
+ link_name = "je_xallocx")]
+ fn xallocx(ptr: *mut c_void, size: size_t, extra: size_t, flags: c_int) -> size_t;
+ #[cfg_attr(any(target_os = "macos", target_os = "android", target_os = "ios",
+ target_os = "dragonfly", target_os = "windows"),
+ link_name = "je_sdallocx")]
+ fn sdallocx(ptr: *mut c_void, size: size_t, flags: c_int);
+ #[cfg_attr(any(target_os = "macos", target_os = "android", target_os = "ios",
+ target_os = "dragonfly", target_os = "windows"),
+ link_name = "je_nallocx")]
+ fn nallocx(size: size_t, flags: c_int) -> size_t;
+ }
+
+ // The minimum alignment guaranteed by the architecture. This value is used to
+ // add fast paths for low alignment values. In practice, the alignment is a
+ // constant at the call site and the branch will be optimized out.
+ #[cfg(all(any(target_arch = "arm",
+ target_arch = "mips",
+ target_arch = "powerpc")))]
+ const MIN_ALIGN: usize = 8;
+ #[cfg(all(any(target_arch = "x86",
+ target_arch = "x86_64",
+ target_arch = "aarch64",
+ target_arch = "powerpc64",
+ target_arch = "mips64",
+ target_arch = "s390x")))]
+ const MIN_ALIGN: usize = 16;
+
+ // MALLOCX_ALIGN(a) macro
+ fn mallocx_align(a: usize) -> c_int {
+ a.trailing_zeros() as c_int
+ }
+
+ fn align_to_flags(align: usize) -> c_int {
+ if align <= MIN_ALIGN {
+ 0
+ } else {
+ mallocx_align(align)
+ }
+ }
+
+ #[no_mangle]
+ pub extern "C" fn __rust_allocate(size: usize, align: usize) -> *mut u8 {
+ let flags = align_to_flags(align);
+ unsafe { mallocx(size as size_t, flags) as *mut u8 }
+ }
+
+ #[no_mangle]
+ pub extern "C" fn __rust_reallocate(ptr: *mut u8,
+ _old_size: usize,
+ size: usize,
+ align: usize)
+ -> *mut u8 {
+ let flags = align_to_flags(align);
+ unsafe { rallocx(ptr as *mut c_void, size as size_t, flags) as *mut u8 }
+ }
+
+ #[no_mangle]
+ pub extern "C" fn __rust_reallocate_inplace(ptr: *mut u8,
+ _old_size: usize,
+ size: usize,
+ align: usize)
+ -> usize {
+ let flags = align_to_flags(align);
+ unsafe { xallocx(ptr as *mut c_void, size as size_t, 0, flags) as usize }
+ }
-fn align_to_flags(align: usize) -> c_int {
- if align <= MIN_ALIGN {
+ #[no_mangle]
+ pub extern "C" fn __rust_deallocate(ptr: *mut u8, old_size: usize, align: usize) {
+ let flags = align_to_flags(align);
+ unsafe { sdallocx(ptr as *mut c_void, old_size as size_t, flags) }
+ }
+
+ #[no_mangle]
+ pub extern "C" fn __rust_usable_size(size: usize, align: usize) -> usize {
+ let flags = align_to_flags(align);
+ unsafe { nallocx(size as size_t, flags) as usize }
+ }
+
+ // These symbols are used by jemalloc on android but the really old android
+ // we're building on doesn't have them defined, so just make sure the symbols
+ // are available.
+ #[no_mangle]
+ #[cfg(target_os = "android")]
+ pub extern "C" fn pthread_atfork(_prefork: *mut u8,
+ _postfork_parent: *mut u8,
+ _postfork_child: *mut u8)
+ -> i32 {
0
- } else {
- mallocx_align(align)
}
}
-#[no_mangle]
-pub extern "C" fn __rust_allocate(size: usize, align: usize) -> *mut u8 {
- let flags = align_to_flags(align);
- unsafe { mallocx(size as size_t, flags) as *mut u8 }
-}
+#[cfg(dummy_jemalloc)]
+mod imp {
+ fn bogus() -> ! {
+ panic!("jemalloc is not implemented for this platform");
+ }
-#[no_mangle]
-pub extern "C" fn __rust_reallocate(ptr: *mut u8,
- _old_size: usize,
- size: usize,
- align: usize)
- -> *mut u8 {
- let flags = align_to_flags(align);
- unsafe { rallocx(ptr as *mut c_void, size as size_t, flags) as *mut u8 }
-}
+ #[no_mangle]
+ pub extern "C" fn __rust_allocate(_size: usize, _align: usize) -> *mut u8 {
+ bogus()
+ }
-#[no_mangle]
-pub extern "C" fn __rust_reallocate_inplace(ptr: *mut u8,
- _old_size: usize,
- size: usize,
- align: usize)
- -> usize {
- let flags = align_to_flags(align);
- unsafe { xallocx(ptr as *mut c_void, size as size_t, 0, flags) as usize }
-}
+ #[no_mangle]
+ pub extern "C" fn __rust_reallocate(_ptr: *mut u8,
+ _old_size: usize,
+ _size: usize,
+ _align: usize)
+ -> *mut u8 {
+ bogus()
+ }
-#[no_mangle]
-pub extern "C" fn __rust_deallocate(ptr: *mut u8, old_size: usize, align: usize) {
- let flags = align_to_flags(align);
- unsafe { sdallocx(ptr as *mut c_void, old_size as size_t, flags) }
-}
+ #[no_mangle]
+ pub extern "C" fn __rust_reallocate_inplace(_ptr: *mut u8,
+ _old_size: usize,
+ _size: usize,
+ _align: usize)
+ -> usize {
+ bogus()
+ }
-#[no_mangle]
-pub extern "C" fn __rust_usable_size(size: usize, align: usize) -> usize {
- let flags = align_to_flags(align);
- unsafe { nallocx(size as size_t, flags) as usize }
-}
+ #[no_mangle]
+ pub extern "C" fn __rust_deallocate(_ptr: *mut u8, _old_size: usize, _align: usize) {
+ bogus()
+ }
-// These symbols are used by jemalloc on android but the really old android
-// we're building on doesn't have them defined, so just make sure the symbols
-// are available.
-#[no_mangle]
-#[cfg(target_os = "android")]
-pub extern "C" fn pthread_atfork(_prefork: *mut u8,
- _postfork_parent: *mut u8,
- _postfork_child: *mut u8)
- -> i32 {
- 0
+ #[no_mangle]
+ pub extern "C" fn __rust_usable_size(_size: usize, _align: usize) -> usize {
+ bogus()
+ }
}
target_arch = "mips",
target_arch = "powerpc",
target_arch = "powerpc64",
- target_arch = "asmjs")))]
+ target_arch = "asmjs",
+ target_arch = "wasm32")))]
const MIN_ALIGN: usize = 8;
#[cfg(all(any(target_arch = "x86_64",
target_arch = "aarch64",
use core::cmp::Ordering;
use core::hash::{Hash, Hasher};
-use core::ops::Deref;
+use core::ops::{Add, AddAssign, Deref};
use fmt;
self
}
}
+
+#[stable(feature = "cow_add", since = "1.13.0")]
+impl<'a> Add<&'a str> for Cow<'a, str> {
+ type Output = Cow<'a, str>;
+
+ fn add(self, rhs: &'a str) -> Self {
+ if self == "" {
+ Cow::Borrowed(rhs)
+ } else if rhs == "" {
+ self
+ } else {
+ Cow::Owned(self.into_owned() + rhs)
+ }
+ }
+}
+
+#[stable(feature = "cow_add", since = "1.13.0")]
+impl<'a> Add<Cow<'a, str>> for Cow<'a, str> {
+ type Output = Cow<'a, str>;
+
+ fn add(self, rhs: Cow<'a, str>) -> Self {
+ if self == "" {
+ rhs
+ } else if rhs == "" {
+ self
+ } else {
+ Cow::Owned(self.into_owned() + rhs.borrow())
+ }
+ }
+}
+
+#[stable(feature = "cow_add", since = "1.13.0")]
+impl<'a> AddAssign<&'a str> for Cow<'a, str> {
+ fn add_assign(&mut self, rhs: &'a str) {
+ if rhs == "" { return; }
+ self.to_mut().push_str(rhs);
+ }
+}
+
+#[stable(feature = "cow_add", since = "1.13.0")]
+impl<'a> AddAssign<Cow<'a, str>> for Cow<'a, str> {
+ fn add_assign(&mut self, rhs: Cow<'a, str>) {
+ if rhs == "" { return; }
+ self.to_mut().push_str(rhs.borrow());
+ }
+}
#![feature(step_by)]
#![feature(unicode)]
#![feature(unique)]
-#![cfg_attr(stage0, feature(unsafe_no_drop_flag))]
#![cfg_attr(test, feature(rand, test))]
#![no_std]
}
#[test]
+ #[cfg_attr(target_os = "emscripten", ignore)]
fn test_send() {
let n = list_from(&[1, 2, 3]);
thread::spawn(move || {
}
/// Use the syntax described in `std::fmt` to create a value of type `String`.
-/// See `std::fmt` for more information.
+/// See [`std::fmt`][fmt] for more information.
+///
+/// [fmt]: ../std/fmt/index.html
///
/// # Examples
///
core_slice::SliceExt::len(self)
}
- /// Returns true if the slice has a length of 0
+ /// Returns true if the slice has a length of 0.
///
/// # Example
///
core_slice::SliceExt::get_unchecked_mut(self, index)
}
- /// Returns an raw pointer to the slice's buffer
+ /// Returns an raw pointer to the slice's buffer.
///
/// The caller must ensure that the slice outlives the pointer this
/// function returns, or else it will end up pointing to garbage.
///
/// # Examples
///
- /// ```rust
+ /// ```
/// let mut v = ["a", "b", "c", "d"];
/// v.swap(1, 3);
/// assert!(v == ["a", "d", "c", "b"]);
///
/// # Example
///
- /// ```rust
+ /// ```
/// let mut v = [1, 2, 3];
/// v.reverse();
/// assert!(v == [3, 2, 1]);
}
/// Returns an iterator over `size` elements of the slice at a
- /// time. The chunks are slices and do not overlap. If `size` does not divide the
- /// length of the slice, then the last chunk will not have length
- /// `size`.
+ /// time. The chunks are slices and do not overlap. If `size` does
+ /// not divide the length of the slice, then the last chunk will
+ /// not have length `size`.
///
/// # Panics
///
///
/// # Examples
///
- /// ```rust
+ /// ```
/// let mut v = [1, 2, 3, 4, 5, 6];
///
/// // scoped to restrict the lifetime of the borrows
}
/// Returns an iterator over subslices separated by elements that match
- /// `pred`, limited to returning at most `n` items. The matched element is
+ /// `pred`, limited to returning at most `n` items. The matched element is
/// not contained in the subslices.
///
/// The last element returned, if any, will contain the remainder of the
}
/// Returns an iterator over subslices separated by elements that match
- /// `pred`, limited to returning at most `n` items. The matched element is
+ /// `pred`, limited to returning at most `n` items. The matched element is
/// not contained in the subslices.
///
/// The last element returned, if any, will contain the remainder of the
/// Returns an iterator over subslices separated by elements that match
/// `pred` limited to returning at most `n` items. This starts at the end of
- /// the slice and works backwards. The matched element is not contained in
+ /// the slice and works backwards. The matched element is not contained in
/// the subslices.
///
/// The last element returned, if any, will contain the remainder of the
///
/// Looks up a series of four elements. The first is found, with a
/// uniquely determined position; the second and third are not
- /// found; the fourth could match any position in `[1,4]`.
+ /// found; the fourth could match any position in `[1, 4]`.
///
- /// ```rust
+ /// ```
/// let s = [0, 1, 1, 1, 1, 2, 3, 5, 8, 13, 21, 34, 55];
///
/// assert_eq!(s.binary_search(&13), Ok(9));
///
/// Looks up a series of four elements. The first is found, with a
/// uniquely determined position; the second and third are not
- /// found; the fourth could match any position in `[1,4]`.
+ /// found; the fourth could match any position in `[1, 4]`.
///
- /// ```rust
+ /// ```
/// let s = [0, 1, 1, 1, 1, 2, 3, 5, 8, 13, 21, 34, 55];
///
/// let seek = 13;
/// Binary search a sorted slice with a key extraction function.
///
/// Assumes that the slice is sorted by the key, for instance with
- /// `sort_by_key` using the same key extraction function.
+ /// [`sort_by_key`] using the same key extraction function.
///
/// If a matching value is found then returns `Ok`, containing the
/// index for the matched element; if no match is found then `Err`
/// is returned, containing the index where a matching element could
/// be inserted while maintaining sorted order.
///
+ /// [`sort_by_key`]: #method.sort_by_key
+ ///
/// # Examples
///
/// Looks up a series of four elements in a slice of pairs sorted by
/// their second elements. The first is found, with a uniquely
/// determined position; the second and third are not found; the
- /// fourth could match any position in `[1,4]`.
+ /// fourth could match any position in `[1, 4]`.
///
- /// ```rust
+ /// ```
/// let s = [(0, 0), (2, 1), (4, 1), (5, 1), (3, 1),
/// (1, 2), (2, 3), (4, 5), (5, 8), (3, 13),
/// (1, 21), (2, 34), (4, 55)];
///
/// # Examples
///
- /// ```rust
+ /// ```
/// let mut v = [-5, 4, 1, -3, 2];
///
/// v.sort();
///
/// # Examples
///
- /// ```rust
+ /// ```
/// let mut v = [-5i32, 4, 1, -3, 2];
///
/// v.sort_by_key(|k| k.abs());
///
/// # Examples
///
- /// ```rust
+ /// ```
/// let mut v = [5, 4, 1, 3, 2];
/// v.sort_by(|a, b| a.cmp(b));
/// assert!(v == [1, 2, 3, 4, 5]);
///
/// # Example
///
- /// ```rust
+ /// ```
/// let mut dst = [0, 0, 0];
/// let src = [1, 2, 3];
///
///
/// # Example
///
- /// ```rust
+ /// ```
/// let mut dst = [0, 0, 0];
/// let src = [1, 2, 3];
///
///
/// Basic usage:
///
- /// ```rust
+ /// ```
/// let bananas = "bananas";
///
/// assert!(bananas.ends_with("anas"));
///
/// It does _not_ give you:
///
- /// ```rust,ignore
+ /// ```,ignore
/// assert_eq!(d, &["a", "b", "c"]);
/// ```
///
//!
//! There are multiple ways to create a new `String` from a string literal:
//!
-//! ```rust
+//! ```
//! let s = "Hello".to_string();
//!
//! let s = String::from("world");
//! You can create a new `String` from an existing one by concatenating with
//! `+`:
//!
-//! ```rust
+//! ```
//! let s = "Hello".to_string();
//!
//! let message = s + " world!";
//! If you have a vector of valid UTF-8 bytes, you can make a `String` out of
//! it. You can do the reverse too.
//!
-//! ```rust
+//! ```
//! let sparkle_heart = vec![240, 159, 146, 150];
//!
//! // We know these bytes are valid, so we'll use `unwrap()`.
pub fn push(&mut self, ch: char) {
match ch.len_utf8() {
1 => self.vec.push(ch as u8),
- _ => self.vec.extend_from_slice(ch.encode_utf8().as_slice()),
+ _ => self.vec.extend_from_slice(ch.encode_utf8(&mut [0;4]).as_bytes()),
}
}
let len = self.len();
assert!(idx <= len);
assert!(self.is_char_boundary(idx));
- let bits = ch.encode_utf8();
+ let mut bits = [0; 4];
+ let bits = ch.encode_utf8(&mut bits).as_bytes();
unsafe {
- self.insert_bytes(idx, bits.as_slice());
+ self.insert_bytes(idx, bits);
}
}
/// Vec does not currently guarantee the order in which elements are dropped
/// (the order has changed in the past, and may change again).
///
-#[cfg_attr(stage0, unsafe_no_drop_flag)]
#[stable(feature = "rust1", since = "1.0.0")]
pub struct Vec<T> {
buf: RawVec<T>,
///
/// # Examples
///
- /// ```rust
+ /// ```
/// # #![feature(vec_into_iter_as_slice)]
/// let vec = vec!['a', 'b', 'c'];
/// let mut into_iter = vec.into_iter();
///
/// # Examples
///
- /// ```rust
+ /// ```
/// # #![feature(vec_into_iter_as_slice)]
/// let vec = vec!['a', 'b', 'c'];
/// let mut into_iter = vec.into_iter();
--- /dev/null
+// Copyright 2012-2013-2014 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+use std::borrow::Cow;
+
+// check that Cow<'a, str> implements addition
+#[test]
+fn check_cow_add() {
+ borrowed1 = Cow::Borrowed("Hello, ");
+ borrowed2 = Cow::Borrowed("World!");
+ borrow_empty = Cow::Borrowed("");
+
+ owned1 = Cow::Owned("Hi, ".into());
+ owned2 = Cow::Owned("Rustaceans!".into());
+ owned_empty = Cow::Owned("".into());
+
+ assert_eq!("Hello, World!", borrowed1 + borrowed2);
+ assert_eq!("Hello, Rustaceans!", borrowed1 + owned2);
+
+ assert_eq!("Hello, World!", owned1 + borrowed2);
+ assert_eq!("Hello, Rustaceans!", owned1 + owned2);
+
+ if let Cow::Owned(_) = borrowed1 + borrow_empty {
+ panic!("Adding empty strings to a borrow should note allocate");
+ }
+ if let Cow::Owned(_) = borrow_empty + borrowed1 {
+ panic!("Adding empty strings to a borrow should note allocate");
+ }
+ if let Cow::Owned(_) = borrowed1 + owned_empty {
+ panic!("Adding empty strings to a borrow should note allocate");
+ }
+ if let Cow::Owned(_) = owned_empty + borrowed1 {
+ panic!("Adding empty strings to a borrow should note allocate");
+ }
+}
+
+fn check_cow_add_assign() {
+ borrowed1 = Cow::Borrowed("Hello, ");
+ borrowed2 = Cow::Borrowed("World!");
+ borrow_empty = Cow::Borrowed("");
+
+ owned1 = Cow::Owned("Hi, ".into());
+ owned2 = Cow::Owned("Rustaceans!".into());
+ owned_empty = Cow::Owned("".into());
+
+ let borrowed1clone = borrowed1.clone();
+ borrowed1clone += borrow_empty;
+ assert_eq!((&borrowed1clone).as_ptr(), (&borrowed1).as_ptr());
+
+ borrowed1clone += owned_empty;
+ assert_eq!((&borrowed1clone).as_ptr(), (&borrowed1).as_ptr());
+
+ owned1 += borrowed2;
+ borrowed1 += owned2;
+
+ assert_eq!("Hello, World!", owned1);
+ assert_eq!("Hello, Rustaceans!", borrowed1);
+}
}
#[test]
+#[cfg_attr(target_os = "emscripten", ignore)]
fn test_box_slice_clone_panics() {
use std::sync::Arc;
use std::sync::atomic::{AtomicUsize, Ordering};
#[test]
fn test_chars_decoding() {
+ let mut bytes = [0; 4];
for c in (0..0x110000).filter_map(::std::char::from_u32) {
- let bytes = c.encode_utf8();
- let s = ::std::str::from_utf8(bytes.as_slice()).unwrap();
+ let s = c.encode_utf8(&mut bytes);
if Some(c) != s.chars().next() {
panic!("character {:x}={} does not decode correctly", c as u32, c);
}
#[test]
fn test_chars_rev_decoding() {
+ let mut bytes = [0; 4];
for c in (0..0x110000).filter_map(::std::char::from_u32) {
- let bytes = c.encode_utf8();
- let s = ::std::str::from_utf8(bytes.as_slice()).unwrap();
+ let s = c.encode_utf8(&mut bytes);
if Some(c) != s.chars().rev().next() {
panic!("character {:x}={} does not decode correctly", c as u32, c);
}
fn main() {
let target = env::var("TARGET").expect("TARGET was not set");
+
+ // Emscripten's runtime includes all the builtins
+ if target.contains("emscripten") {
+ return;
+ }
+
let cfg = &mut gcc::Config::new();
if target.contains("msvc") {
// option. This file may not be copied, modified, or distributed
// except according to those terms.
-#![cfg_attr(not(stage0), feature(compiler_builtins))]
+#![feature(compiler_builtins)]
#![no_std]
-#![cfg_attr(not(stage0), compiler_builtins)]
+#![compiler_builtins]
#![unstable(feature = "compiler_builtins_lib",
reason = "internal implementation detail of rustc right now",
issue = "0")]
use char_private::is_printable;
use convert::TryFrom;
use fmt;
+use slice;
use iter::FusedIterator;
use mem::transmute;
#[stable(feature = "core", since = "1.6.0")]
fn len_utf16(self) -> usize;
#[unstable(feature = "unicode", issue = "27784")]
- fn encode_utf8(self) -> EncodeUtf8;
+ fn encode_utf8(self, dst: &mut [u8]) -> &mut str;
#[unstable(feature = "unicode", issue = "27784")]
- fn encode_utf16(self) -> EncodeUtf16;
+ fn encode_utf16(self, dst: &mut [u16]) -> &mut [u16];
}
#[stable(feature = "core", since = "1.6.0")]
}
#[inline]
- fn encode_utf8(self) -> EncodeUtf8 {
+ fn encode_utf8(self, dst: &mut [u8]) -> &mut str {
let code = self as u32;
- let mut buf = [0; 4];
- let pos = if code < MAX_ONE_B {
- buf[3] = code as u8;
- 3
- } else if code < MAX_TWO_B {
- buf[2] = (code >> 6 & 0x1F) as u8 | TAG_TWO_B;
- buf[3] = (code & 0x3F) as u8 | TAG_CONT;
- 2
- } else if code < MAX_THREE_B {
- buf[1] = (code >> 12 & 0x0F) as u8 | TAG_THREE_B;
- buf[2] = (code >> 6 & 0x3F) as u8 | TAG_CONT;
- buf[3] = (code & 0x3F) as u8 | TAG_CONT;
- 1
- } else {
- buf[0] = (code >> 18 & 0x07) as u8 | TAG_FOUR_B;
- buf[1] = (code >> 12 & 0x3F) as u8 | TAG_CONT;
- buf[2] = (code >> 6 & 0x3F) as u8 | TAG_CONT;
- buf[3] = (code & 0x3F) as u8 | TAG_CONT;
- 0
- };
- EncodeUtf8 { buf: buf, pos: pos }
+ unsafe {
+ let len =
+ if code < MAX_ONE_B && !dst.is_empty() {
+ *dst.get_unchecked_mut(0) = code as u8;
+ 1
+ } else if code < MAX_TWO_B && dst.len() >= 2 {
+ *dst.get_unchecked_mut(0) = (code >> 6 & 0x1F) as u8 | TAG_TWO_B;
+ *dst.get_unchecked_mut(1) = (code & 0x3F) as u8 | TAG_CONT;
+ 2
+ } else if code < MAX_THREE_B && dst.len() >= 3 {
+ *dst.get_unchecked_mut(0) = (code >> 12 & 0x0F) as u8 | TAG_THREE_B;
+ *dst.get_unchecked_mut(1) = (code >> 6 & 0x3F) as u8 | TAG_CONT;
+ *dst.get_unchecked_mut(2) = (code & 0x3F) as u8 | TAG_CONT;
+ 3
+ } else if dst.len() >= 4 {
+ *dst.get_unchecked_mut(0) = (code >> 18 & 0x07) as u8 | TAG_FOUR_B;
+ *dst.get_unchecked_mut(1) = (code >> 12 & 0x3F) as u8 | TAG_CONT;
+ *dst.get_unchecked_mut(2) = (code >> 6 & 0x3F) as u8 | TAG_CONT;
+ *dst.get_unchecked_mut(3) = (code & 0x3F) as u8 | TAG_CONT;
+ 4
+ } else {
+ panic!("encode_utf8: need {} bytes to encode U+{:X}, but the buffer has {}",
+ from_u32_unchecked(code).len_utf8(),
+ code,
+ dst.len())
+ };
+ transmute(slice::from_raw_parts_mut(dst.as_mut_ptr(), len))
+ }
}
#[inline]
- fn encode_utf16(self) -> EncodeUtf16 {
- let mut buf = [0; 2];
+ fn encode_utf16(self, dst: &mut [u16]) -> &mut [u16] {
let mut code = self as u32;
- let pos = if (code & 0xFFFF) == code {
- // The BMP falls through (assuming non-surrogate, as it should)
- buf[1] = code as u16;
- 1
- } else {
- // Supplementary planes break into surrogates.
- code -= 0x1_0000;
- buf[0] = 0xD800 | ((code >> 10) as u16);
- buf[1] = 0xDC00 | ((code as u16) & 0x3FF);
- 0
- };
- EncodeUtf16 { buf: buf, pos: pos }
+ unsafe {
+ if (code & 0xFFFF) == code && !dst.is_empty() {
+ // The BMP falls through (assuming non-surrogate, as it should)
+ *dst.get_unchecked_mut(0) = code as u16;
+ slice::from_raw_parts_mut(dst.as_mut_ptr(), 1)
+ } else if dst.len() >= 2 {
+ // Supplementary planes break into surrogates.
+ code -= 0x1_0000;
+ *dst.get_unchecked_mut(0) = 0xD800 | ((code >> 10) as u16);
+ *dst.get_unchecked_mut(1) = 0xDC00 | ((code as u16) & 0x3FF);
+ slice::from_raw_parts_mut(dst.as_mut_ptr(), 2)
+ } else {
+ panic!("encode_utf16: need {} units to encode U+{:X}, but the buffer has {}",
+ from_u32_unchecked(code).len_utf16(),
+ code,
+ dst.len())
+ }
+ }
}
}
#[unstable(feature = "fused", issue = "35602")]
impl FusedIterator for EscapeDebug {}
-/// An iterator over `u8` entries represending the UTF-8 encoding of a `char`
-/// value.
-///
-/// Constructed via the `.encode_utf8()` method on `char`.
-#[unstable(feature = "unicode", issue = "27784")]
-#[derive(Debug)]
-pub struct EncodeUtf8 {
- buf: [u8; 4],
- pos: usize,
-}
-
-impl EncodeUtf8 {
- /// Returns the remaining bytes of this iterator as a slice.
- #[unstable(feature = "unicode", issue = "27784")]
- pub fn as_slice(&self) -> &[u8] {
- &self.buf[self.pos..]
- }
-}
-
-#[unstable(feature = "unicode", issue = "27784")]
-impl Iterator for EncodeUtf8 {
- type Item = u8;
-
- fn next(&mut self) -> Option<u8> {
- if self.pos == self.buf.len() {
- None
- } else {
- let ret = Some(self.buf[self.pos]);
- self.pos += 1;
- ret
- }
- }
-
- fn size_hint(&self) -> (usize, Option<usize>) {
- self.as_slice().iter().size_hint()
- }
-}
-
-#[unstable(feature = "fused", issue = "35602")]
-impl FusedIterator for EncodeUtf8 {}
-
-/// An iterator over `u16` entries represending the UTF-16 encoding of a `char`
-/// value.
-///
-/// Constructed via the `.encode_utf16()` method on `char`.
-#[unstable(feature = "unicode", issue = "27784")]
-#[derive(Debug)]
-pub struct EncodeUtf16 {
- buf: [u16; 2],
- pos: usize,
-}
-
-impl EncodeUtf16 {
- /// Returns the remaining bytes of this iterator as a slice.
- #[unstable(feature = "unicode", issue = "27784")]
- pub fn as_slice(&self) -> &[u16] {
- &self.buf[self.pos..]
- }
-}
-
-
-#[unstable(feature = "unicode", issue = "27784")]
-impl Iterator for EncodeUtf16 {
- type Item = u16;
-
- fn next(&mut self) -> Option<u16> {
- if self.pos == self.buf.len() {
- None
- } else {
- let ret = Some(self.buf[self.pos]);
- self.pos += 1;
- ret
- }
- }
-
- fn size_hint(&self) -> (usize, Option<usize>) {
- self.as_slice().iter().size_hint()
- }
-}
-#[unstable(feature = "fused", issue = "35602")]
-impl FusedIterator for EncodeUtf16 {}
/// An iterator over an iterator of bytes of the characters the bytes represent
/// as UTF-8
reason = "deriving hack, should not be public",
issue = "0")]
pub struct AssertParamIsCopy<T: Copy + ?Sized> { _field: ::marker::PhantomData<T> }
-#[cfg(stage0)]
-#[doc(hidden)]
-#[inline(always)]
-#[unstable(feature = "derive_clone_copy",
- reason = "deriving hack, should not be public",
- issue = "0")]
-pub fn assert_receiver_is_clone<T: Clone + ?Sized>(_: &T) {}
#[stable(feature = "rust1", since = "1.0.0")]
impl<'a, T: ?Sized> Clone for &'a T {
//! Functionality for ordering and comparison.
//!
-//! This module defines both `PartialOrd` and `PartialEq` traits which are used
+//! This module defines both [`PartialOrd`] and [`PartialEq`] traits which are used
//! by the compiler to implement comparison operators. Rust programs may
-//! implement `PartialOrd` to overload the `<`, `<=`, `>`, and `>=` operators,
-//! and may implement `PartialEq` to overload the `==` and `!=` operators.
+//! implement [`PartialOrd`] to overload the `<`, `<=`, `>`, and `>=` operators,
+//! and may implement [`PartialEq`] to overload the `==` and `!=` operators.
+//!
+//! [`PartialOrd`]: trait.PartialOrd.html
+//! [`PartialEq`]: trait.PartialEq.html
//!
//! # Examples
//!
/// This function will return an instance of `Error` on error.
#[stable(feature = "fmt_write_char", since = "1.1.0")]
fn write_char(&mut self, c: char) -> Result {
- self.write_str(unsafe {
- str::from_utf8_unchecked(c.encode_utf8().as_slice())
- })
+ self.write_str(c.encode_utf8(&mut [0; 4]))
}
/// Glue for usage of the `write!` macro with implementors of this trait.
/// assert_eq!(output, "Hello world!");
/// ```
///
-/// Please note that using [`write!`][write_macro] might be preferrable. Example:
+/// Please note that using [`write!`] might be preferrable. Example:
///
/// ```
/// use std::fmt::Write;
/// assert_eq!(output, "Hello world!");
/// ```
///
-/// [write_macro]: ../../std/macro.write!.html
+/// [`write!`]: ../../std/macro.write.html
#[stable(feature = "rust1", since = "1.0.0")]
pub fn write(output: &mut Write, args: Arguments) -> Result {
let mut formatter = Formatter {
// Writes the sign if it exists, and then the prefix if it was requested
let write_prefix = |f: &mut Formatter| {
if let Some(c) = sign {
- f.buf.write_str(unsafe {
- str::from_utf8_unchecked(c.encode_utf8().as_slice())
- })?;
+ f.buf.write_str(c.encode_utf8(&mut [0; 4]))?;
}
if prefixed { f.buf.write_str(prefix) }
else { Ok(()) }
rt::v1::Alignment::Center => (padding / 2, (padding + 1) / 2),
};
- let fill = self.fill.encode_utf8();
- let fill = unsafe {
- str::from_utf8_unchecked(fill.as_slice())
- };
+ let mut fill = [0; 4];
+ let fill = self.fill.encode_utf8(&mut fill);
for _ in 0..pre_pad {
self.buf.write_str(fill)?;
if f.width.is_none() && f.precision.is_none() {
f.write_char(*self)
} else {
- f.pad(unsafe {
- str::from_utf8_unchecked(self.encode_utf8().as_slice())
- })
+ f.pad(self.encode_utf8(&mut [0; 4]))
}
}
}
// Implementation of Display/Debug for various core types
#[stable(feature = "rust1", since = "1.0.0")]
-impl<T> Debug for *const T {
+impl<T: ?Sized> Debug for *const T {
fn fmt(&self, f: &mut Formatter) -> Result { Pointer::fmt(self, f) }
}
#[stable(feature = "rust1", since = "1.0.0")]
-impl<T> Debug for *mut T {
+impl<T: ?Sized> Debug for *mut T {
fn fmt(&self, f: &mut Formatter) -> Result { Pointer::fmt(self, f) }
}
/// own, or if it does not enable any significant optimizations.
pub fn assume(b: bool);
- #[cfg(not(stage0))]
/// Hints to the compiler that branch condition is likely to be true.
/// Returns the value passed to it.
///
/// Any use other than with `if` statements will probably not have an effect.
pub fn likely(b: bool) -> bool;
- #[cfg(not(stage0))]
/// Hints to the compiler that branch condition is likely to be false.
/// Returns the value passed to it.
///
/// Invokes memset on the specified pointer, setting `count * size_of::<T>()`
/// bytes of memory starting at `dst` to `val`.
+ ///
+ /// # Examples
+ ///
+ /// ```
+ /// use std::ptr;
+ ///
+ /// let mut vec = vec![0; 4];
+ /// unsafe {
+ /// let vec_ptr = vec.as_mut_ptr();
+ /// ptr::write_bytes(vec_ptr, b'a', 2);
+ /// }
+ /// assert_eq!(vec, [b'a', b'a', 0, 0]);
+ /// ```
#[stable(feature = "rust1", since = "1.0.0")]
pub fn write_bytes<T>(dst: *mut T, val: u8, count: usize);
($($t:ty)*) => ($(
#[stable(feature = "rust1", since = "1.0.0")]
impl ExactSizeIterator for ops::Range<$t> { }
+ )*)
+}
+macro_rules! range_incl_exact_iter_impl {
+ ($($t:ty)*) => ($(
#[unstable(feature = "inclusive_range",
reason = "recently added, follows RFC",
issue = "28237")]
}
}
-// Ranges of u64 and i64 are excluded because they cannot guarantee having
-// a length <= usize::MAX, which is required by ExactSizeIterator.
+// These macros generate `ExactSizeIterator` impls for various range types.
+// Range<{u,i}64> and RangeInclusive<{u,i}{32,64,size}> are excluded
+// because they cannot guarantee having a length <= usize::MAX, which is
+// required by ExactSizeIterator.
range_exact_iter_impl!(usize u8 u16 u32 isize i8 i16 i32);
+range_incl_exact_iter_impl!(u8 u16 i8 i16);
#[stable(feature = "rust1", since = "1.0.0")]
impl<A: Step + Clone> DoubleEndedIterator for ops::Range<A> where
#![stable(feature = "rust1", since = "1.0.0")]
+use clone;
+use cmp;
+use fmt;
+use hash;
use intrinsics;
+use marker::{Copy, PhantomData, Sized};
use ptr;
#[stable(feature = "rust1", since = "1.0.0")]
pub unsafe fn transmute_copy<T, U>(src: &T) -> U {
ptr::read(src as *const T as *const U)
}
+
+/// Opaque type representing the discriminant of an enum.
+///
+/// See the `discriminant` function in this module for more information.
+#[unstable(feature = "discriminant_value", reason = "recently added, follows RFC", issue = "24263")]
+pub struct Discriminant<T>(u64, PhantomData<*const T>);
+
+// N.B. These trait implementations cannot be derived because we don't want any bounds on T.
+
+#[unstable(feature = "discriminant_value", reason = "recently added, follows RFC", issue = "24263")]
+impl<T> Copy for Discriminant<T> {}
+
+#[unstable(feature = "discriminant_value", reason = "recently added, follows RFC", issue = "24263")]
+impl<T> clone::Clone for Discriminant<T> {
+ fn clone(&self) -> Self {
+ *self
+ }
+}
+
+#[unstable(feature = "discriminant_value", reason = "recently added, follows RFC", issue = "24263")]
+impl<T> cmp::PartialEq for Discriminant<T> {
+ fn eq(&self, rhs: &Self) -> bool {
+ self.0 == rhs.0
+ }
+}
+
+#[unstable(feature = "discriminant_value", reason = "recently added, follows RFC", issue = "24263")]
+impl<T> cmp::Eq for Discriminant<T> {}
+
+#[unstable(feature = "discriminant_value", reason = "recently added, follows RFC", issue = "24263")]
+impl<T> hash::Hash for Discriminant<T> {
+ fn hash<H: hash::Hasher>(&self, state: &mut H) {
+ self.0.hash(state);
+ }
+}
+
+#[unstable(feature = "discriminant_value", reason = "recently added, follows RFC", issue = "24263")]
+impl<T> fmt::Debug for Discriminant<T> {
+ fn fmt(&self, fmt: &mut fmt::Formatter) -> fmt::Result {
+ fmt.debug_tuple("Discriminant")
+ .field(&self.0)
+ .finish()
+ }
+}
+
+/// Returns a value uniquely identifying the enum variant in `v`.
+///
+/// If `T` is not an enum, calling this function will not result in undefined behavior, but the
+/// return value is unspecified.
+///
+/// # Stability
+///
+/// The discriminant of an enum variant may change if the enum definition changes. A discriminant
+/// of some variant will not change between compilations with the same compiler.
+///
+/// # Examples
+///
+/// This can be used to compare enums that carry data, while disregarding
+/// the actual data:
+///
+/// ```
+/// #![feature(discriminant_value)]
+/// use std::mem;
+///
+/// enum Foo { A(&'static str), B(i32), C(i32) }
+///
+/// assert!(mem::discriminant(&Foo::A("bar")) == mem::discriminant(&Foo::A("baz")));
+/// assert!(mem::discriminant(&Foo::B(1)) == mem::discriminant(&Foo::B(2)));
+/// assert!(mem::discriminant(&Foo::B(3)) != mem::discriminant(&Foo::C(3)));
+/// ```
+#[unstable(feature = "discriminant_value", reason = "recently added, follows RFC", issue = "24263")]
+pub fn discriminant<T>(v: &T) -> Discriminant<T> {
+ unsafe {
+ Discriminant(intrinsics::discriminant_value(v), PhantomData)
+ }
+}
+
//!
//! Some of these traits are imported by the prelude, so they are available in
//! every Rust program. Only operators backed by traits can be overloaded. For
-//! example, the addition operator (`+`) can be overloaded through the `Add`
+//! example, the addition operator (`+`) can be overloaded through the [`Add`]
//! trait, but since the assignment operator (`=`) has no backing trait, there
//! is no way of overloading its semantics. Additionally, this module does not
//! provide any mechanism to create new operators. If traitless overloading or
//! contexts involving built-in types, this is usually not a problem.
//! However, using these operators in generic code, requires some
//! attention if values have to be reused as opposed to letting the operators
-//! consume them. One option is to occasionally use `clone()`.
+//! consume them. One option is to occasionally use [`clone()`].
//! Another option is to rely on the types involved providing additional
//! operator implementations for references. For example, for a user-defined
//! type `T` which is supposed to support addition, it is probably a good
-//! idea to have both `T` and `&T` implement the traits `Add<T>` and `Add<&T>`
-//! so that generic code can be written without unnecessary cloning.
+//! idea to have both `T` and `&T` implement the traits [`Add<T>`][`Add`] and
+//! [`Add<&T>`][`Add`] so that generic code can be written without unnecessary
+//! cloning.
//!
//! # Examples
//!
-//! This example creates a `Point` struct that implements `Add` and `Sub`, and
-//! then demonstrates adding and subtracting two `Point`s.
+//! This example creates a `Point` struct that implements [`Add`] and [`Sub`],
+//! and then demonstrates adding and subtracting two `Point`s.
//!
//! ```rust
//! use std::ops::{Add, Sub};
//! See the documentation for each trait for an example implementation.
//!
//! The [`Fn`], [`FnMut`], and [`FnOnce`] traits are implemented by types that can be
-//! invoked like functions. Note that `Fn` takes `&self`, `FnMut` takes `&mut
-//! self` and `FnOnce` takes `self`. These correspond to the three kinds of
+//! invoked like functions. Note that [`Fn`] takes `&self`, [`FnMut`] takes `&mut
+//! self` and [`FnOnce`] takes `self`. These correspond to the three kinds of
//! methods that can be invoked on an instance: call-by-reference,
//! call-by-mutable-reference, and call-by-value. The most common use of these
//! traits is to act as bounds to higher-level functions that take functions or
//! closures as arguments.
//!
-//! [`Fn`]: trait.Fn.html
-//! [`FnMut`]: trait.FnMut.html
-//! [`FnOnce`]: trait.FnOnce.html
-//!
-//! Taking a `Fn` as a parameter:
+//! Taking a [`Fn`] as a parameter:
//!
//! ```rust
//! fn call_with_one<F>(func: F) -> usize
//! assert_eq!(call_with_one(double), 2);
//! ```
//!
-//! Taking a `FnMut` as a parameter:
+//! Taking a [`FnMut`] as a parameter:
//!
//! ```rust
//! fn do_twice<F>(mut func: F)
//! assert_eq!(x, 5);
//! ```
//!
-//! Taking a `FnOnce` as a parameter:
+//! Taking a [`FnOnce`] as a parameter:
//!
//! ```rust
//! fn consume_with_relish<F>(func: F)
//!
//! // `consume_and_return_x` can no longer be invoked at this point
//! ```
+//!
+//! [`Fn`]: trait.Fn.html
+//! [`FnMut`]: trait.FnMut.html
+//! [`FnOnce`]: trait.FnOnce.html
+//! [`Add`]: trait.Add.html
+//! [`Sub`]: trait.Sub.html
+//! [`clone()`]: ../clone/trait.Clone.html#tymethod.clone
#![stable(feature = "rust1", since = "1.0.0")]
shr_assign_impl_all! { u8 u16 u32 u64 usize i8 i16 i32 i64 isize }
/// The `Index` trait is used to specify the functionality of indexing operations
-/// like `arr[idx]` when used in an immutable context.
+/// like `container[index]` when used in an immutable context.
///
/// # Examples
///
#[stable(feature = "rust1", since = "1.0.0")]
type Output: ?Sized;
- /// The method for the indexing (`Foo[Bar]`) operation
+ /// The method for the indexing (`container[index]`) operation
#[stable(feature = "rust1", since = "1.0.0")]
fn index(&self, index: Idx) -> &Self::Output;
}
/// The `IndexMut` trait is used to specify the functionality of indexing
-/// operations like `arr[idx]`, when used in a mutable context.
+/// operations like `container[index]`, when used in a mutable context.
///
/// # Examples
///
-/// A trivial implementation of `IndexMut`. When `Foo[Bar]` happens, it ends up
-/// calling `index_mut`, and therefore, `main` prints `Indexing!`.
+/// A trivial implementation of `IndexMut` for a type `Foo`. When `&mut Foo[2]`
+/// happens, it ends up calling `index_mut`, and therefore, `main` prints
+/// `Mutable indexing with 2!`.
///
/// ```
/// use std::ops::{Index, IndexMut};
///
/// #[derive(Copy, Clone)]
/// struct Foo;
-/// struct Bar;
///
-/// impl Index<Bar> for Foo {
+/// impl Index<usize> for Foo {
/// type Output = Foo;
///
-/// fn index<'a>(&'a self, _index: Bar) -> &'a Foo {
+/// fn index(&self, _index: usize) -> &Foo {
/// self
/// }
/// }
///
-/// impl IndexMut<Bar> for Foo {
-/// fn index_mut<'a>(&'a mut self, _index: Bar) -> &'a mut Foo {
-/// println!("Indexing!");
+/// impl IndexMut<usize> for Foo {
+/// fn index_mut(&mut self, index: usize) -> &mut Foo {
+/// println!("Mutable indexing with {}!", index);
/// self
/// }
/// }
///
/// fn main() {
-/// &mut Foo[Bar];
+/// &mut Foo[2];
/// }
/// ```
#[lang = "index_mut"]
#[rustc_on_unimplemented = "the type `{Self}` cannot be mutably indexed by `{Idx}`"]
#[stable(feature = "rust1", since = "1.0.0")]
pub trait IndexMut<Idx: ?Sized>: Index<Idx> {
- /// The method for the indexing (`Foo[Bar]`) operation
+ /// The method for the mutable indexing (`container[index]`) operation
#[stable(feature = "rust1", since = "1.0.0")]
fn index_mut(&mut self, index: Idx) -> &mut Self::Output;
}
// option. This file may not be copied, modified, or distributed
// except according to those terms.
-use std::char;
+use std::{char,str};
use std::convert::TryFrom;
#[test]
#[test]
fn test_encode_utf8() {
fn check(input: char, expect: &[u8]) {
- assert_eq!(input.encode_utf8().as_slice(), expect);
- for (a, b) in input.encode_utf8().zip(expect) {
- assert_eq!(a, *b);
- }
+ let mut buf = [0; 4];
+ let ptr = buf.as_ptr();
+ let s = input.encode_utf8(&mut buf);
+ assert_eq!(s.as_ptr() as usize, ptr as usize);
+ assert!(str::from_utf8(s.as_bytes()).is_ok());
+ assert_eq!(s.as_bytes(), expect);
}
check('x', &[0x78]);
#[test]
fn test_encode_utf16() {
fn check(input: char, expect: &[u16]) {
- assert_eq!(input.encode_utf16().as_slice(), expect);
- for (a, b) in input.encode_utf16().zip(expect) {
- assert_eq!(a, *b);
- }
+ let mut buf = [0; 2];
+ let ptr = buf.as_mut_ptr();
+ let b = input.encode_utf16(&mut buf);
+ assert_eq!(b.as_mut_ptr() as usize, ptr as usize);
+ assert_eq!(b, expect);
}
check('x', &[0x0078]);
// option. This file may not be copied, modified, or distributed
// except according to those terms.
+// FIXME https://github.com/kripken/emscripten/issues/4563
+// NB we have to actually not compile this test to avoid
+// an undefined symbol error
+#![cfg(not(target_os = "emscripten"))]
+
use core::num::flt2dec::estimator::*;
#[test]
-Subproject commit d4f6a19c55a03e3f9f6fb7377911b37ed807eb6c
+Subproject commit b474785561d58efbd27add9d22339dcabad742ad
"alloc 0.0.0",
"core 0.0.0",
"libc 0.0.0",
+ "unwind 0.0.0",
]
[[package]]
"core 0.0.0",
]
+[[package]]
+name = "unwind"
+version = "0.0.0"
+dependencies = [
+ "core 0.0.0",
+ "libc 0.0.0",
+]
+
--- /dev/null
+// Copyright 2016 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+//! Unwinding for emscripten
+//!
+//! Whereas Rust's usual unwinding implementation for Unix platforms
+//! calls into the libunwind APIs directly, on emscripten we instead
+//! call into the C++ unwinding APIs. This is just an expedience since
+//! emscripten's runtime always implements those APIs and does not
+//! implement libunwind.
+
+#![allow(private_no_mangle_fns)]
+
+use core::any::Any;
+use core::ptr;
+use alloc::boxed::Box;
+use libc::{self, c_int};
+use unwind as uw;
+use core::mem;
+
+pub fn payload() -> *mut u8 {
+ ptr::null_mut()
+}
+
+pub unsafe fn cleanup(ptr: *mut u8) -> Box<Any + Send> {
+ assert!(!ptr.is_null());
+ let ex = ptr::read(ptr as *mut _);
+ __cxa_free_exception(ptr as *mut _);
+ ex
+}
+
+pub unsafe fn panic(data: Box<Any + Send>) -> u32 {
+ let sz = mem::size_of_val(&data);
+ let exception = __cxa_allocate_exception(sz);
+ if exception == ptr::null_mut() {
+ return uw::_URC_FATAL_PHASE1_ERROR as u32;
+ }
+ let exception = exception as *mut Box<Any + Send>;
+ ptr::write(exception, data);
+ __cxa_throw(exception as *mut _, ptr::null_mut(), ptr::null_mut());
+
+ unreachable!()
+}
+
+#[lang = "eh_personality"]
+#[no_mangle]
+unsafe extern "C" fn rust_eh_personality(version: c_int,
+ actions: uw::_Unwind_Action,
+ exception_class: uw::_Unwind_Exception_Class,
+ exception_object: *mut uw::_Unwind_Exception,
+ context: *mut uw::_Unwind_Context)
+ -> uw::_Unwind_Reason_Code {
+ __gxx_personality_v0(version, actions,
+ exception_class,
+ exception_object,
+ context)
+}
+
+extern {
+ fn __cxa_allocate_exception(thrown_size: libc::size_t) -> *mut libc::c_void;
+ fn __cxa_free_exception(thrown_exception: *mut libc::c_void);
+ fn __cxa_throw(thrown_exception: *mut libc::c_void,
+ tinfo: *mut libc::c_void,
+ dest: *mut libc::c_void);
+ fn __gxx_personality_v0(version: c_int,
+ actions: uw::_Unwind_Action,
+ exception_class: uw::_Unwind_Exception_Class,
+ exception_object: *mut uw::_Unwind_Exception,
+ context: *mut uw::_Unwind_Context)
+ -> uw::_Unwind_Reason_Code;
+}
mod imp;
// i686-pc-windows-gnu and all others
-#[cfg(any(unix, all(windows, target_arch = "x86", target_env = "gnu")))]
+#[cfg(any(all(unix, not(target_os = "emscripten")),
+ all(windows, target_arch = "x86", target_env = "gnu")))]
#[path = "gcc.rs"]
mod imp;
+// emscripten
+#[cfg(target_os = "emscripten")]
+#[path = "emcc.rs"]
+mod imp;
+
mod dwarf;
mod windows;
self.add_ast_node(pat.id, &[pats_exit])
}
- PatKind::Vec(ref pre, ref vec, ref post) => {
+ PatKind::Slice(ref pre, ref vec, ref post) => {
let pre_exit = self.pats_all(pre.iter(), pred);
let vec_exit = self.pats_all(vec.iter(), pre_exit);
let post_exit = self.pats_all(post.iter(), vec_exit);
self.add_unreachable_node()
}
- hir::ExprVec(ref elems) => {
+ hir::ExprArray(ref elems) => {
self.straightline(expr, pred, elems.iter().map(|e| &**e))
}
visitor.visit_id(typ.id);
match typ.node {
- TyVec(ref ty) => {
+ TySlice(ref ty) => {
visitor.visit_ty(ty)
}
TyPtr(ref mutable_type) => {
visitor.visit_ty(ty);
walk_list!(visitor, visit_ty_param_bound, bounds);
}
- TyFixedLengthVec(ref ty, ref expression) => {
+ TyArray(ref ty, ref expression) => {
visitor.visit_ty(ty);
visitor.visit_expr(expression)
}
visitor.visit_expr(upper_bound)
}
PatKind::Wild => (),
- PatKind::Vec(ref prepatterns, ref slice_pattern, ref postpatterns) => {
+ PatKind::Slice(ref prepatterns, ref slice_pattern, ref postpatterns) => {
walk_list!(visitor, visit_pat, prepatterns);
walk_list!(visitor, visit_pat, slice_pattern);
walk_list!(visitor, visit_pat, postpatterns);
ExprBox(ref subexpression) => {
visitor.visit_expr(subexpression)
}
- ExprVec(ref subexpressions) => {
+ ExprArray(ref subexpressions) => {
walk_list!(visitor, visit_expr, subexpressions);
}
ExprRepeat(ref element, ref count) => {
}
fn lower_ty(&mut self, t: &Ty) -> P<hir::Ty> {
- use syntax::ast::TyKind::*;
P(hir::Ty {
id: t.id,
node: match t.node {
- Infer | ImplicitSelf => hir::TyInfer,
- Vec(ref ty) => hir::TyVec(self.lower_ty(ty)),
- Ptr(ref mt) => hir::TyPtr(self.lower_mt(mt)),
- Rptr(ref region, ref mt) => {
+ TyKind::Infer | TyKind::ImplicitSelf => hir::TyInfer,
+ TyKind::Slice(ref ty) => hir::TySlice(self.lower_ty(ty)),
+ TyKind::Ptr(ref mt) => hir::TyPtr(self.lower_mt(mt)),
+ TyKind::Rptr(ref region, ref mt) => {
hir::TyRptr(self.lower_opt_lifetime(region), self.lower_mt(mt))
}
- BareFn(ref f) => {
+ TyKind::BareFn(ref f) => {
hir::TyBareFn(P(hir::BareFnTy {
lifetimes: self.lower_lifetime_defs(&f.lifetimes),
unsafety: self.lower_unsafety(f.unsafety),
decl: self.lower_fn_decl(&f.decl),
}))
}
- Never => hir::TyNever,
- Tup(ref tys) => hir::TyTup(tys.iter().map(|ty| self.lower_ty(ty)).collect()),
- Paren(ref ty) => {
+ TyKind::Never => hir::TyNever,
+ TyKind::Tup(ref tys) => {
+ hir::TyTup(tys.iter().map(|ty| self.lower_ty(ty)).collect())
+ }
+ TyKind::Paren(ref ty) => {
return self.lower_ty(ty);
}
- Path(ref qself, ref path) => {
+ TyKind::Path(ref qself, ref path) => {
let qself = qself.as_ref().map(|&QSelf { ref ty, position }| {
hir::QSelf {
ty: self.lower_ty(ty),
});
hir::TyPath(qself, self.lower_path(path))
}
- ObjectSum(ref ty, ref bounds) => {
+ TyKind::ObjectSum(ref ty, ref bounds) => {
hir::TyObjectSum(self.lower_ty(ty), self.lower_bounds(bounds))
}
- FixedLengthVec(ref ty, ref e) => {
- hir::TyFixedLengthVec(self.lower_ty(ty), self.lower_expr(e))
+ TyKind::Array(ref ty, ref e) => {
+ hir::TyArray(self.lower_ty(ty), self.lower_expr(e))
}
- Typeof(ref expr) => {
+ TyKind::Typeof(ref expr) => {
hir::TyTypeof(self.lower_expr(expr))
}
- PolyTraitRef(ref bounds) => {
+ TyKind::PolyTraitRef(ref bounds) => {
hir::TyPolyTraitRef(self.lower_bounds(bounds))
}
- ImplTrait(ref bounds) => {
+ TyKind::ImplTrait(ref bounds) => {
hir::TyImplTrait(self.lower_bounds(bounds))
}
- Mac(_) => panic!("TyMac should have been expanded by now."),
+ TyKind::Mac(_) => panic!("TyMac should have been expanded by now."),
},
span: t.span,
})
PatKind::Range(ref e1, ref e2) => {
hir::PatKind::Range(self.lower_expr(e1), self.lower_expr(e2))
}
- PatKind::Vec(ref before, ref slice, ref after) => {
- hir::PatKind::Vec(before.iter().map(|x| self.lower_pat(x)).collect(),
+ PatKind::Slice(ref before, ref slice, ref after) => {
+ hir::PatKind::Slice(before.iter().map(|x| self.lower_pat(x)).collect(),
slice.as_ref().map(|x| self.lower_pat(x)),
after.iter().map(|x| self.lower_pat(x)).collect())
}
}
ExprKind::Vec(ref exprs) => {
- hir::ExprVec(exprs.iter().map(|x| self.lower_expr(x)).collect())
+ hir::ExprArray(exprs.iter().map(|x| self.lower_expr(x)).collect())
}
ExprKind::Repeat(ref expr, ref count) => {
let expr = self.lower_expr(expr);
use middle::cstore::InlinedItem;
use syntax::ast::*;
+use syntax::ext::hygiene::Mark;
use syntax::visit;
-use syntax::parse::token;
+use syntax::parse::token::{self, keywords};
/// Creates def ids for nodes in the HIR.
-pub struct DefCollector<'ast> {
+pub struct DefCollector<'a> {
// If we are walking HIR (c.f., AST), we need to keep a reference to the
// crate.
- hir_crate: Option<&'ast hir::Crate>,
- definitions: &'ast mut Definitions,
+ hir_crate: Option<&'a hir::Crate>,
+ definitions: &'a mut Definitions,
parent_def: Option<DefIndex>,
+ pub visit_macro_invoc: Option<&'a mut FnMut(MacroInvocationData)>,
}
-impl<'ast> DefCollector<'ast> {
- pub fn new(definitions: &'ast mut Definitions) -> DefCollector<'ast> {
+pub struct MacroInvocationData {
+ pub mark: Mark,
+ pub def_index: DefIndex,
+ pub const_integer: bool,
+}
+
+impl<'a> DefCollector<'a> {
+ pub fn new(definitions: &'a mut Definitions) -> Self {
DefCollector {
hir_crate: None,
definitions: definitions,
parent_def: None,
+ visit_macro_invoc: None,
}
}
pub fn extend(parent_node: NodeId,
parent_def_path: DefPath,
parent_def_id: DefId,
- definitions: &'ast mut Definitions)
- -> DefCollector<'ast> {
+ definitions: &'a mut Definitions)
+ -> Self {
let mut collector = DefCollector::new(definitions);
assert_eq!(parent_def_path.krate, parent_def_id.krate);
self.create_def_with_parent(Some(CRATE_DEF_INDEX), DUMMY_NODE_ID, DefPathData::Misc);
}
- pub fn walk_item(&mut self, ii: &'ast InlinedItem, krate: &'ast hir::Crate) {
+ pub fn walk_item(&mut self, ii: &'a InlinedItem, krate: &'a hir::Crate) {
self.hir_crate = Some(krate);
ii.visit(self);
}
self.definitions.create_def_with_parent(parent, node_id, data)
}
- fn with_parent<F: FnOnce(&mut Self)>(&mut self, parent_def: DefIndex, f: F) {
+ pub fn with_parent<F: FnOnce(&mut Self)>(&mut self, parent_def: DefIndex, f: F) {
let parent = self.parent_def;
self.parent_def = Some(parent_def);
f(self);
self.parent_def = parent;
}
- fn visit_ast_const_integer(&mut self, expr: &Expr) {
- // Find the node which will be used after lowering.
- if let ExprKind::Paren(ref inner) = expr.node {
- return self.visit_ast_const_integer(inner);
- }
-
- // FIXME(eddyb) Closures should have separate
- // function definition IDs and expression IDs.
- if let ExprKind::Closure(..) = expr.node {
- return;
+ pub fn visit_ast_const_integer(&mut self, expr: &Expr) {
+ match expr.node {
+ // Find the node which will be used after lowering.
+ ExprKind::Paren(ref inner) => return self.visit_ast_const_integer(inner),
+ ExprKind::Mac(..) => return self.visit_macro_invoc(expr.id, true),
+ // FIXME(eddyb) Closures should have separate
+ // function definition IDs and expression IDs.
+ ExprKind::Closure(..) => return,
+ _ => {}
}
self.create_def(expr.id, DefPathData::Initializer);
}
- fn visit_hir_const_integer(&mut self, expr: &'ast hir::Expr) {
+ fn visit_hir_const_integer(&mut self, expr: &hir::Expr) {
// FIXME(eddyb) Closures should have separate
// function definition IDs and expression IDs.
if let hir::ExprClosure(..) = expr.node {
self.create_def(expr.id, DefPathData::Initializer);
}
+
+ fn visit_macro_invoc(&mut self, id: NodeId, const_integer: bool) {
+ if let Some(ref mut visit) = self.visit_macro_invoc {
+ visit(MacroInvocationData {
+ mark: Mark::from_placeholder_id(id),
+ const_integer: const_integer,
+ def_index: self.parent_def.unwrap(),
+ })
+ }
+ }
}
-impl<'ast> visit::Visitor for DefCollector<'ast> {
+impl<'a> visit::Visitor for DefCollector<'a> {
fn visit_item(&mut self, i: &Item) {
debug!("visit_item: {:?}", i);
ItemKind::Enum(..) | ItemKind::Struct(..) | ItemKind::Union(..) | ItemKind::Trait(..) |
ItemKind::ExternCrate(..) | ItemKind::ForeignMod(..) | ItemKind::Ty(..) =>
DefPathData::TypeNs(i.ident.name.as_str()),
+ ItemKind::Mod(..) if i.ident == keywords::Invalid.ident() => {
+ return visit::walk_item(self, i);
+ }
ItemKind::Mod(..) => DefPathData::Module(i.ident.name.as_str()),
ItemKind::Static(..) | ItemKind::Const(..) | ItemKind::Fn(..) =>
DefPathData::ValueNs(i.ident.name.as_str()),
- ItemKind::Mac(..) => DefPathData::MacroDef(i.ident.name.as_str()),
+ ItemKind::Mac(..) if i.id == DUMMY_NODE_ID => return, // Scope placeholder
+ ItemKind::Mac(..) => return self.visit_macro_invoc(i.id, false),
ItemKind::Use(..) => DefPathData::Misc,
};
let def = self.create_def(i.id, def_data);
TraitItemKind::Method(..) | TraitItemKind::Const(..) =>
DefPathData::ValueNs(ti.ident.name.as_str()),
TraitItemKind::Type(..) => DefPathData::TypeNs(ti.ident.name.as_str()),
- TraitItemKind::Macro(..) => DefPathData::MacroDef(ti.ident.name.as_str()),
+ TraitItemKind::Macro(..) => return self.visit_macro_invoc(ti.id, false),
};
let def = self.create_def(ti.id, def_data);
ImplItemKind::Method(..) | ImplItemKind::Const(..) =>
DefPathData::ValueNs(ii.ident.name.as_str()),
ImplItemKind::Type(..) => DefPathData::TypeNs(ii.ident.name.as_str()),
- ImplItemKind::Macro(..) => DefPathData::MacroDef(ii.ident.name.as_str()),
+ ImplItemKind::Macro(..) => return self.visit_macro_invoc(ii.id, false),
};
let def = self.create_def(ii.id, def_data);
fn visit_pat(&mut self, pat: &Pat) {
let parent_def = self.parent_def;
- if let PatKind::Ident(_, id, _) = pat.node {
- let def = self.create_def(pat.id, DefPathData::Binding(id.node.name.as_str()));
- self.parent_def = Some(def);
+ match pat.node {
+ PatKind::Mac(..) => return self.visit_macro_invoc(pat.id, false),
+ PatKind::Ident(_, id, _) => {
+ let def = self.create_def(pat.id, DefPathData::Binding(id.node.name.as_str()));
+ self.parent_def = Some(def);
+ }
+ _ => {}
}
visit::walk_pat(self, pat);
fn visit_expr(&mut self, expr: &Expr) {
let parent_def = self.parent_def;
- if let ExprKind::Repeat(_, ref count) = expr.node {
- self.visit_ast_const_integer(count);
- }
-
- if let ExprKind::Closure(..) = expr.node {
- let def = self.create_def(expr.id, DefPathData::ClosureExpr);
- self.parent_def = Some(def);
+ match expr.node {
+ ExprKind::Mac(..) => return self.visit_macro_invoc(expr.id, false),
+ ExprKind::Repeat(_, ref count) => self.visit_ast_const_integer(count),
+ ExprKind::Closure(..) => {
+ let def = self.create_def(expr.id, DefPathData::ClosureExpr);
+ self.parent_def = Some(def);
+ }
+ _ => {}
}
visit::walk_expr(self, expr);
}
fn visit_ty(&mut self, ty: &Ty) {
- if let TyKind::FixedLengthVec(_, ref length) = ty.node {
- self.visit_ast_const_integer(length);
- }
- if let TyKind::ImplTrait(..) = ty.node {
- self.create_def(ty.id, DefPathData::ImplTrait);
+ match ty.node {
+ TyKind::Mac(..) => return self.visit_macro_invoc(ty.id, false),
+ TyKind::Array(_, ref length) => self.visit_ast_const_integer(length),
+ TyKind::ImplTrait(..) => {
+ self.create_def(ty.id, DefPathData::ImplTrait);
+ }
+ _ => {}
}
visit::walk_ty(self, ty);
}
fn visit_macro_def(&mut self, macro_def: &MacroDef) {
self.create_def(macro_def.id, DefPathData::MacroDef(macro_def.ident.name.as_str()));
}
+
+ fn visit_stmt(&mut self, stmt: &Stmt) {
+ match stmt.node {
+ StmtKind::Mac(..) => self.visit_macro_invoc(stmt.id, false),
+ _ => visit::walk_stmt(self, stmt),
+ }
+ }
}
// We walk the HIR rather than the AST when reading items from metadata.
}
fn visit_ty(&mut self, ty: &'ast hir::Ty) {
- if let hir::TyFixedLengthVec(_, ref length) = ty.node {
+ if let hir::TyArray(_, ref length) = ty.node {
self.visit_hir_const_integer(length);
}
if let hir::TyImplTrait(..) = ty.node {
// except according to those terms.
use hir::def_id::{CrateNum, DefId, DefIndex, LOCAL_CRATE};
-use hir::map::def_collector::DefCollector;
use rustc_data_structures::fnv::FnvHashMap;
use std::fmt::Write;
use std::hash::{Hash, Hasher, SipHasher};
-use syntax::{ast, visit};
+use syntax::ast;
use syntax::parse::token::{self, InternedString};
use ty::TyCtxt;
use util::nodemap::NodeMap;
}
}
- pub fn collect(&mut self, krate: &ast::Crate) {
- let mut def_collector = DefCollector::new(self);
- def_collector.collect_root();
- visit::walk_crate(&mut def_collector, krate);
- }
-
/// Get the number of definitions.
pub fn len(&self) -> usize {
self.data.len()
pub use self::Node::*;
use self::MapEntry::*;
use self::collector::NodeCollector;
-use self::def_collector::DefCollector;
+pub use self::def_collector::{DefCollector, MacroInvocationData};
pub use self::definitions::{Definitions, DefKey, DefPath, DefPathData,
DisambiguatedDefPathData, InlinedRootPath};
EntryVariant(p, _) |
EntryExpr(p, _) |
EntryStmt(p, _) |
- EntryTy(p, _) |
+ EntryTy(p, _) |
EntryLocal(p, _) |
EntryPat(p, _) |
EntryBlock(p, _) |
PatKind::Box(ref s) | PatKind::Ref(ref s, _) => {
s.walk_(it)
}
- PatKind::Vec(ref before, ref slice, ref after) => {
+ PatKind::Slice(ref before, ref slice, ref after) => {
before.iter().all(|p| p.walk_(it)) &&
slice.iter().all(|p| p.walk_(it)) &&
after.iter().all(|p| p.walk_(it))
/// A range pattern, e.g. `1...2`
Range(P<Expr>, P<Expr>),
/// `[a, b, ..i, y, z]` is represented as:
- /// `PatKind::Vec(box [a, b], Some(i), box [y, z])`
-
Vec(HirVec<P<Pat>>, Option<P<Pat>>, HirVec<P<Pat>>),
+ /// `PatKind::Slice(box [a, b], Some(i), box [y, z])`
+
Slice(HirVec<P<Pat>>, Option<P<Pat>>, HirVec<P<Pat>>),
}
#[derive(Clone, PartialEq, Eq, RustcEncodable, RustcDecodable, Hash, Debug, Copy)]
/// A `box x` expression.
ExprBox(P<Expr>),
/// An array (`[a, b, c, d]`)
- Expr
Vec(HirVec<P<Expr>>),
+ Expr
Array(HirVec<P<Expr>>),
/// A function call
///
/// The first field resolves to the function itself (usually an `ExprPath`),
#[derive(Clone, PartialEq, Eq, RustcEncodable, RustcDecodable, Hash, Debug)]
/// The different kinds of types recognized by the compiler
pub enum Ty_ {
- /// A variable length array (`[T]`)
- TyVec(P<Ty>),
+ /// A variable length slice (`[T]`)
+ TySlice(P<Ty>),
/// A fixed length array (`[T; n]`)
- TyFixedLengthVec(P<Ty>, P<Expr>),
+ TyArray(P<Ty>, P<Expr>),
/// A raw pointer (`*const T` or `*mut T`)
TyPtr(MutTy),
/// A reference (`&'a T` or `&'a mut T`)
_ => false
}
}
- PatKind::Vec(..) => true,
+ PatKind::Slice(..) => true,
_ => false
}
}
self.maybe_print_comment(ty.span.lo)?;
self.ibox(0)?;
match ty.node {
- hir::TyVec(ref ty) => {
+ hir::TySlice(ref ty) => {
word(&mut self.s, "[")?;
self.print_type(&ty)?;
word(&mut self.s, "]")?;
hir::TyImplTrait(ref bounds) => {
self.print_bounds("impl ", &bounds[..])?;
}
- hir::TyFixedLengthVec(ref ty, ref v) => {
+ hir::TyArray(ref ty, ref v) => {
word(&mut self.s, "[")?;
self.print_type(&ty)?;
word(&mut self.s, "; ")?;
self.word_space("box")?;
self.print_expr(expr)?;
}
- hir::ExprVec(ref exprs) => {
+ hir::ExprArray(ref exprs) => {
self.print_expr_vec(&exprs[..])?;
}
hir::ExprRepeat(ref element, ref count) => {
word(&mut self.s, "...")?;
self.print_expr(&end)?;
}
- PatKind::Vec(ref before, ref slice, ref after) => {
+ PatKind::Slice(ref before, ref slice, ref after) => {
word(&mut self.s, "[")?;
self.commasep(Inconsistent, &before[..], |s, p| s.print_pat(&p))?;
if let Some(ref p) = *slice {
hir::TyPtr(ref mut_ty) => {
ty_queue.push(&mut_ty.ty);
}
- hir::TyVec(ref ty) |
- hir::TyFixedLengthVec(ref ty, _) => {
+ hir::TySlice(ref ty) |
+ hir::TyArray(ref ty, _) => {
ty_queue.push(&ty);
}
hir::TyTup(ref tys) => ty_queue.extend(tys.iter().map(|ty| &**ty)),
ty: build_to(mut_ty.ty, to),
})
}
- hir::TyVec(ty) => hir::TyVec(build_to(ty, to)),
- hir::TyFixedLengthVec(ty, e) => {
- hir::TyFixedLengthVec(build_to(ty, to), e)
+ hir::TySlice(ty) => hir::TySlice(build_to(ty, to)),
+ hir::TyArray(ty, e) => {
+ hir::TyArray(build_to(ty, to), e)
}
hir::TyTup(tys) => {
hir::TyTup(tys.into_iter().map(|ty| build_to(ty, to)).collect())
use mir::repr::Mir;
use mir::mir_map::MirMap;
use session::Session;
-use session::config::PanicStrategy;
use session::search_paths::PathKind;
use util::nodemap::{NodeSet, DefIdMap};
use std::path::PathBuf;
use rustc_back::target::Target;
use hir;
use hir::intravisit::Visitor;
+use rustc_back::PanicStrategy;
pub use self::NativeLibraryKind::{NativeStatic, NativeFramework, NativeUnknown};
fn metadata_encoding_version(&self) -> &[u8] { bug!("metadata_encoding_version") }
}
-pub enum LoadedMacro {
+pub struct LoadedMacro {
+ pub import_site: Span,
+ pub kind: LoadedMacroKind,
+}
+
+pub enum LoadedMacroKind {
Def(ast::MacroDef),
CustomDerive(String, Rc<MultiItemModifier>),
}
use hir::def_id::CrateNum;
use session;
-use session::config::{self, PanicStrategy};
+use session::config;
use middle::cstore::LinkagePreference::{self, RequireStatic, RequireDynamic};
use util::nodemap::FnvHashMap;
+use rustc_back::PanicStrategy;
/// A list of dependencies for a certain crate type.
///
// only one, but we perform validation here that all the panic strategy
// compilation modes for the whole DAG are valid.
if let Some((cnum, found_strategy)) = panic_runtime {
- let desired_strategy = sess.opts.cg.panic.clone();
+ let desired_strategy = sess.panic_strategy();
// First up, validate that our selected panic runtime is indeed exactly
// our same strategy.
}
}
- hir::ExprVec(ref exprs) => {
+ hir::ExprArray(ref exprs) => {
self.consume_exprs(exprs);
}
}
};
- span_err!(self.infcx.tcx.sess, span, E0512,
+ struct_span_err!(self.infcx.tcx.sess, span, E0512,
"transmute called with differently sized types: \
{} ({}) to {} ({})",
from, skeleton_string(from, sk_from),
- to, skeleton_string(to, sk_to));
+ to, skeleton_string(to, sk_to))
+ .span_label(span,
+ &format!("transmuting between {} and {}",
+ skeleton_string(from, sk_from),
+ skeleton_string(to, sk_to)))
+ .emit();
}
}
// otherwise, live nodes are not required:
hir::ExprIndex(..) | hir::ExprField(..) | hir::ExprTupField(..) |
- hir::ExprVec(..) | hir::ExprCall(..) | hir::ExprMethodCall(..) |
+ hir::ExprArray(..) | hir::ExprCall(..) | hir::ExprMethodCall(..) |
hir::ExprTup(..) | hir::ExprBinary(..) | hir::ExprAddrOf(..) |
hir::ExprCast(..) | hir::ExprUnary(..) | hir::ExprBreak(_) |
hir::ExprAgain(_) | hir::ExprLit(_) | hir::ExprRet(..) |
// Uninteresting cases: just propagate in rev exec order
- hir::ExprVec(ref exprs) => {
+ hir::ExprArray(ref exprs) => {
self.propagate_through_exprs(&exprs[..], succ)
}
hir::ExprCall(..) | hir::ExprMethodCall(..) | hir::ExprIf(..) |
hir::ExprMatch(..) | hir::ExprWhile(..) | hir::ExprLoop(..) |
hir::ExprIndex(..) | hir::ExprField(..) | hir::ExprTupField(..) |
- hir::ExprVec(..) | hir::ExprTup(..) | hir::ExprBinary(..) |
+ hir::ExprArray(..) | hir::ExprTup(..) | hir::ExprBinary(..) |
hir::ExprCast(..) | hir::ExprUnary(..) | hir::ExprRet(..) |
hir::ExprBreak(..) | hir::ExprAgain(..) | hir::ExprLit(_) |
hir::ExprBlock(..) | hir::ExprAddrOf(..) |
hir::ExprClosure(..) | hir::ExprRet(..) |
hir::ExprUnary(..) |
hir::ExprMethodCall(..) | hir::ExprCast(..) |
- hir::ExprVec(..) | hir::ExprTup(..) | hir::ExprIf(..) |
+ hir::ExprArray(..) | hir::ExprTup(..) | hir::ExprIf(..) |
hir::ExprBinary(..) | hir::ExprWhile(..) |
hir::ExprBlock(..) | hir::ExprLoop(..) | hir::ExprMatch(..) |
hir::ExprLit(..) | hir::ExprBreak(..) |
self.cat_pattern_(subcmt, &subpat, op)?;
}
- PatKind::Vec(ref before, ref slice, ref after) => {
+ PatKind::Slice(ref before, ref slice, ref after) => {
let context = InteriorOffsetKind::Pattern;
let elt_cmt = self.cat_index(pat, cmt, context)?;
for before_pat in before {
field_pats.iter().any(|fp| is_binding_pat(&fp.node.pat))
}
- PatKind::Vec(ref pats1, ref pats2, ref pats3) => {
+ PatKind::Slice(ref pats1, ref pats2, ref pats3) => {
pats1.iter().any(|p| is_binding_pat(&p)) ||
pats2.iter().any(|p| is_binding_pat(&p)) ||
pats3.iter().any(|p| is_binding_pat(&p))
visitor, &field.expr, blk_id);
}
}
- hir::ExprVec(ref subexprs) |
+ hir::ExprArray(ref subexprs) |
hir::ExprTup(ref subexprs) => {
for subexpr in subexprs {
record_rvalue_scope_if_borrow_expr(
&feature, &r),
None => format!("use of unstable library feature '{}'", &feature)
};
- emit_feature_err(&self.tcx.sess.parse_sess.span_diagnostic,
- &feature, span, GateIssue::Library(Some(issue)), &msg);
+ emit_feature_err(&self.tcx.sess.parse_sess, &feature, span,
+ GateIssue::Library(Some(issue)), &msg);
}
}
Some(&Stability { ref level, ref feature, .. }) => {
//! Validity checking for weak lang items
-use session::config::{self, PanicStrategy};
+use session::config;
use session::Session;
use middle::lang_items;
+use rustc_back::PanicStrategy;
use syntax::ast;
use syntax::parse::token::InternedString;
use syntax_pos::Span;
// symbols. Other panic runtimes ensure that the relevant symbols are
// available to link things together, but they're never exercised.
let mut whitelisted = HashSet::new();
- if sess.opts.cg.panic != PanicStrategy::Unwind {
+ if sess.panic_strategy() != PanicStrategy::Unwind {
whitelisted.insert(lang_items::EhPersonalityLangItem);
whitelisted.insert(lang_items::EhUnwindResumeLangItem);
}
/// Rvalues promoted from this function, such as borrows of constants.
/// Each of them is the Mir of a constant with the fn's type parameters
- /// in scope, but no vars or args and a separate set of temps.
+ /// in scope, but a separate set of locals.
pub promoted: IndexVec<Promoted, Mir<'tcx>>,
/// Return type of the function.
pub return_ty: Ty<'tcx>,
- /// Variables: these are stack slots corresponding to user variables. They may be
- /// assigned many times.
- pub var_decls: IndexVec<Var, VarDecl<'tcx>>,
-
- /// Args: these are stack slots corresponding to the input arguments.
- pub arg_decls: IndexVec<Arg, ArgDecl<'tcx>>,
+ /// Declarations of locals.
+ ///
+ /// The first local is the return value pointer, followed by `arg_count`
+ /// locals for the function arguments, followed by any user-declared
+ /// variables and temporaries.
+ pub local_decls: IndexVec<Local, LocalDecl<'tcx>>,
- /// Temp declarations: stack slots that for temporaries created by
- /// the compiler. These are assigned once, but they are not SSA
- /// values in that it is possible to borrow them and mutate them
- /// through the resulting reference.
- pub temp_decls: IndexVec<Temp, TempDecl<'tcx>>,
+ /// Number of arguments this function takes.
+ ///
+ /// Starting at local 1, `arg_count` locals will be provided by the caller
+ /// and can be assumed to be initialized.
+ ///
+ /// If this MIR was built for a constant, this will be 0.
+ pub arg_count: usize,
/// Names and capture modes of all the closure upvars, assuming
/// the first argument is either the closure or a reference to it.
pub upvar_decls: Vec<UpvarDecl>,
+ /// Mark an argument local (which must be a tuple) as getting passed as
+ /// its individual components at the LLVM level.
+ ///
+ /// This is used for the "rust-call" ABI.
+ pub spread_arg: Option<Local>,
+
/// A span representing this MIR, for error reporting
pub span: Span,
visibility_scopes: IndexVec<VisibilityScope, VisibilityScopeData>,
promoted: IndexVec<Promoted, Mir<'tcx>>,
return_ty: Ty<'tcx>,
- var_decls: IndexVec<Var, VarDecl<'tcx>>,
- arg_decls: IndexVec<Arg, ArgDecl<'tcx>>,
- temp_decls: IndexVec<Temp, TempDecl<'tcx>>,
+ local_decls: IndexVec<Local, LocalDecl<'tcx>>,
+ arg_count: usize,
upvar_decls: Vec<UpvarDecl>,
span: Span) -> Self
{
+ // We need `arg_count` locals, and one for the return pointer
+ assert!(local_decls.len() >= arg_count + 1,
+ "expected at least {} locals, got {}", arg_count + 1, local_decls.len());
+ assert_eq!(local_decls[RETURN_POINTER].ty, return_ty);
+
Mir {
basic_blocks: basic_blocks,
visibility_scopes: visibility_scopes,
promoted: promoted,
return_ty: return_ty,
- var_decls: var_decls,
- arg_decls: arg_decls,
- temp_decls: temp_decls,
+ local_decls: local_decls,
+ arg_count: arg_count,
upvar_decls: upvar_decls,
+ spread_arg: None,
span: span,
cache: Cache::new()
}
dominators(self)
}
- /// Maps locals (Arg's, Var's, Temp's and ReturnPointer, in that order)
- /// to their index in the whole list of locals. This is useful if you
- /// want to treat all locals the same instead of repeating yourself.
- pub fn local_index(&self, lvalue: &Lvalue<'tcx>) -> Option<Local> {
- let idx = match *lvalue {
- Lvalue::Arg(arg) => arg.index(),
- Lvalue::Var(var) => {
- self.arg_decls.len() +
- var.index()
- }
- Lvalue::Temp(temp) => {
- self.arg_decls.len() +
- self.var_decls.len() +
- temp.index()
+ #[inline]
+ pub fn local_kind(&self, local: Local) -> LocalKind {
+ let index = local.0 as usize;
+ if index == 0 {
+ debug_assert!(self.local_decls[local].mutability == Mutability::Mut,
+ "return pointer should be mutable");
+
+ LocalKind::ReturnPointer
+ } else if index < self.arg_count + 1 {
+ LocalKind::Arg
+ } else if self.local_decls[local].name.is_some() {
+ LocalKind::Var
+ } else {
+ debug_assert!(self.local_decls[local].mutability == Mutability::Mut,
+ "temp should be mutable");
+
+ LocalKind::Temp
+ }
+ }
+
+ /// Returns an iterator over all temporaries.
+ #[inline]
+ pub fn temps_iter<'a>(&'a self) -> impl Iterator<Item=Local> + 'a {
+ (self.arg_count+1..self.local_decls.len()).filter_map(move |index| {
+ let local = Local::new(index);
+ if self.local_decls[local].source_info.is_none() {
+ Some(local)
+ } else {
+ None
}
- Lvalue::ReturnPointer => {
- self.arg_decls.len() +
- self.var_decls.len() +
- self.temp_decls.len()
+ })
+ }
+
+ /// Returns an iterator over all user-declared locals.
+ #[inline]
+ pub fn vars_iter<'a>(&'a self) -> impl Iterator<Item=Local> + 'a {
+ (self.arg_count+1..self.local_decls.len()).filter_map(move |index| {
+ let local = Local::new(index);
+ if self.local_decls[local].source_info.is_none() {
+ None
+ } else {
+ Some(local)
}
- Lvalue::Static(_) |
- Lvalue::Projection(_) => return None
- };
- Some(Local::new(idx))
+ })
}
- /// Counts the number of locals, such that local_index
- /// will always return an index smaller than this count.
- pub fn count_locals(&self) -> usize {
- self.arg_decls.len() +
- self.var_decls.len() +
- self.temp_decls.len() + 1
+ /// Returns an iterator over all function arguments.
+ #[inline]
+ pub fn args_iter(&self) -> impl Iterator<Item=Local> {
+ let arg_count = self.arg_count;
+ (1..arg_count+1).map(Local::new)
}
- pub fn format_local(&self, local: Local) -> String {
- let mut index = local.index();
- index = match index.checked_sub(self.arg_decls.len()) {
- None => return format!("{:?}", Arg::new(index)),
- Some(index) => index,
- };
- index = match index.checked_sub(self.var_decls.len()) {
- None => return format!("{:?}", Var::new(index)),
- Some(index) => index,
- };
- index = match index.checked_sub(self.temp_decls.len()) {
- None => return format!("{:?}", Temp::new(index)),
- Some(index) => index,
- };
- debug_assert!(index == 0);
- return "ReturnPointer".to_string()
+ /// Returns an iterator over all user-defined variables and compiler-generated temporaries (all
+ /// locals that are neither arguments nor the return pointer).
+ #[inline]
+ pub fn vars_and_temps_iter(&self) -> impl Iterator<Item=Local> {
+ let arg_count = self.arg_count;
+ let local_count = self.local_decls.len();
+ (arg_count+1..local_count).map(Local::new)
}
/// Changes a statement to a nop. This is both faster than deleting instructions and avoids
///////////////////////////////////////////////////////////////////////////
// Variables and temps
-/// A "variable" is a binding declared by the user as part of the fn
-/// decl, a let, etc.
-#[derive(Clone, Debug, RustcEncodable, RustcDecodable)]
-pub struct VarDecl<'tcx> {
- /// `let mut x` vs `let x`
- pub mutability: Mutability,
-
- /// name that user gave the variable; not that, internally,
- /// mir references variables by index
- pub name: Name,
+newtype_index!(Local, "_");
- /// type inferred for this variable (`let x: ty = ...`)
- pub ty: Ty<'tcx>,
+pub const RETURN_POINTER: Local = Local(0);
- /// source information (span, scope, etc.) for the declaration
- pub source_info: SourceInfo,
-}
-
-/// A "temp" is a temporary that we place on the stack. They are
-/// anonymous, always mutable, and have only a type.
-#[derive(Clone, Debug, RustcEncodable, RustcDecodable)]
-pub struct TempDecl<'tcx> {
- pub ty: Ty<'tcx>,
+/// Classifies locals into categories. See `Mir::local_kind`.
+#[derive(PartialEq, Eq, Debug)]
+pub enum LocalKind {
+ /// User-declared variable binding
+ Var,
+ /// Compiler-introduced temporary
+ Temp,
+ /// Function argument
+ Arg,
+ /// Location of function's return value
+ ReturnPointer,
}
-/// A "arg" is one of the function's formal arguments. These are
-/// anonymous and distinct from the bindings that the user declares.
-///
-/// For example, in this function:
-///
-/// ```
-/// fn foo((x, y): (i32, u32)) { ... }
-/// ```
+/// A MIR local.
///
-/// there is only one argument, of type `(i32, u32)`, but two bindings
-/// (`x` and `y`).
+/// This can be a binding declared by the user, a temporary inserted by the compiler, a function
+/// argument, or the return pointer.
#[derive(Clone, Debug, RustcEncodable, RustcDecodable)]
-pub struct ArgDecl<'tcx> {
+pub struct LocalDecl<'tcx> {
+ /// `let mut x` vs `let x`.
+ ///
+ /// Temporaries and the return pointer are always mutable.
+ pub mutability: Mutability,
+
+ /// Type of this local.
pub ty: Ty<'tcx>,
- /// If true, this argument is a tuple after monomorphization,
- /// and has to be collected from multiple actual arguments.
- pub spread: bool,
+ /// Name of the local, used in debuginfo and pretty-printing.
+ ///
+ /// Note that function arguments can also have this set to `Some(_)`
+ /// to generate better debuginfo.
+ pub name: Option<Name>,
+
+ /// For user-declared variables, stores their source information.
+ ///
+ /// For temporaries, this is `None`.
+ ///
+ /// This is the primary way to differentiate between user-declared
+ /// variables and compiler-generated temporaries.
+ pub source_info: Option<SourceInfo>,
+}
+
+impl<'tcx> LocalDecl<'tcx> {
+ /// Create a new `LocalDecl` for a temporary.
+ #[inline]
+ pub fn new_temp(ty: Ty<'tcx>) -> Self {
+ LocalDecl {
+ mutability: Mutability::Mut,
+ ty: ty,
+ name: None,
+ source_info: None,
+ }
+ }
- /// Either keywords::Invalid or the name of a single-binding
- /// pattern associated with this argument. Useful for debuginfo.
- pub debug_name: Name
+ /// Builds a `LocalDecl` for the return pointer.
+ ///
+ /// This must be inserted into the `local_decls` list as the first local.
+ #[inline]
+ pub fn new_return_pointer(return_ty: Ty) -> LocalDecl {
+ LocalDecl {
+ mutability: Mutability::Mut,
+ ty: return_ty,
+ source_info: None,
+ name: None, // FIXME maybe we do want some name here?
+ }
+ }
}
/// A closure capture, with its name and mode.
/// continue. Emitted by build::scope::diverge_cleanup.
Resume,
- /// Indicates a normal return. The ReturnPointer lvalue should
+ /// Indicates a normal return. The return pointer lvalue should
/// have been filled in by now. This should occur at most once.
Return,
///////////////////////////////////////////////////////////////////////////
// Lvalues
-newtype_index!(Var, "var");
-newtype_index!(Temp, "tmp");
-newtype_index!(Arg, "arg");
-newtype_index!(Local, "local");
-
/// A path to a value; something that can be evaluated without
/// changing or disturbing program state.
#[derive(Clone, PartialEq, RustcEncodable, RustcDecodable)]
pub enum Lvalue<'tcx> {
- /// local variable declared by the user
- Var(Var),
-
- /// temporary introduced during lowering into MIR
- Temp(Temp),
-
- /// formal parameter of the function; note that these are NOT the
- /// bindings that the user declares, which are vars
- Arg(Arg),
+ /// local variable
+ Local(Local),
/// static or static mut variable
Static(DefId),
- /// the return pointer of the fn
- ReturnPointer,
-
/// projection out of an lvalue (access a field, deref a pointer, etc)
Projection(Box<LvalueProjection<'tcx>>),
}
elem: elem,
}))
}
-
- pub fn from_local(mir: &Mir<'tcx>, local: Local) -> Lvalue<'tcx> {
- let mut index = local.index();
- index = match index.checked_sub(mir.arg_decls.len()) {
- None => return Lvalue::Arg(Arg(index as u32)),
- Some(index) => index,
- };
- index = match index.checked_sub(mir.var_decls.len()) {
- None => return Lvalue::Var(Var(index as u32)),
- Some(index) => index,
- };
- index = match index.checked_sub(mir.temp_decls.len()) {
- None => return Lvalue::Temp(Temp(index as u32)),
- Some(index) => index,
- };
- debug_assert!(index == 0);
- Lvalue::ReturnPointer
- }
}
impl<'tcx> Debug for Lvalue<'tcx> {
use self::Lvalue::*;
match *self {
- Var(id) => write!(fmt, "{:?}", id),
- Arg(id) => write!(fmt, "{:?}", id),
- Temp(id) => write!(fmt, "{:?}", id),
+ Local(id) => write!(fmt, "{:?}", id),
Static(def_id) =>
write!(fmt, "{}", ty::tls::with(|tcx| tcx.item_path_str(def_id))),
- ReturnPointer =>
- write!(fmt, "return"),
Projection(ref data) =>
match data.elem {
ProjectionElem::Downcast(ref adt_def, index) =>
#[derive(Clone, Debug, PartialEq, Eq, RustcEncodable, RustcDecodable)]
pub enum AggregateKind<'tcx> {
- Vec,
+ Array,
Tuple,
/// The second field is variant number (discriminant), it's equal to 0
/// for struct and union expressions. The fourth field is active field
}
Aggregate(ref kind, ref lvs) => {
- use self::AggregateKind::*;
-
fn fmt_tuple(fmt: &mut Formatter, lvs: &[Operand]) -> fmt::Result {
let mut tuple_fmt = fmt.debug_tuple("");
for lv in lvs {
}
match *kind {
- Vec => write!(fmt, "{:?}", lvs),
+ AggregateKind::Array => write!(fmt, "{:?}", lvs),
- Tuple => {
+ AggregateKind::Tuple => {
match lvs.len() {
0 => write!(fmt, "()"),
1 => write!(fmt, "({:?},)", lvs[0]),
}
}
- Adt(adt_def, variant, substs, _) => {
+ AggregateKind::Adt(adt_def, variant, substs, _) => {
let variant_def = &adt_def.variants[variant];
ppaux::parameterized(fmt, substs, variant_def.did,
}
}
- Closure(def_id, _) => ty::tls::with(|tcx| {
+ AggregateKind::Closure(def_id, _) => ty::tls::with(|tcx| {
if let Some(node_id) = tcx.map.as_local_node_id(def_id) {
let name = format!("[closure@{:?}]", tcx.map.span(node_id));
let mut struct_fmt = fmt.debug_struct(&name);
-> LvalueTy<'tcx>
{
match *elem {
- ProjectionElem::Deref =>
+ ProjectionElem::Deref => {
+ let ty = self.to_ty(tcx)
+ .builtin_deref(true, ty::LvaluePreference::NoPreference)
+ .unwrap_or_else(|| {
+ bug!("deref projection of non-dereferencable ty {:?}", self)
+ })
+ .ty;
LvalueTy::Ty {
- ty: self.to_ty(tcx).builtin_deref(true, ty::LvaluePreference::NoPreference)
- .unwrap()
- .ty
- },
+ ty: ty,
+ }
+ }
ProjectionElem::Index(_) | ProjectionElem::ConstantIndex { .. } =>
LvalueTy::Ty {
ty: self.to_ty(tcx).builtin_index().unwrap()
impl<'tcx> Lvalue<'tcx> {
pub fn ty<'a, 'gcx>(&self, mir: &Mir<'tcx>, tcx: TyCtxt<'a, 'gcx, 'tcx>) -> LvalueTy<'tcx> {
- match self {
- &Lvalue::Var(index) =>
- LvalueTy::Ty { ty: mir.var_decls[index].ty },
- &Lvalue::Temp(index) =>
- LvalueTy::Ty { ty: mir.temp_decls[index].ty },
- &Lvalue::Arg(index) =>
- LvalueTy::Ty { ty: mir.arg_decls[index].ty },
- &Lvalue::Static(def_id) =>
+ match *self {
+ Lvalue::Local(index) =>
+ LvalueTy::Ty { ty: mir.local_decls[index].ty },
+ Lvalue::Static(def_id) =>
LvalueTy::Ty { ty: tcx.lookup_item_type(def_id).ty },
- &Lvalue::ReturnPointer =>
- LvalueTy::Ty { ty: mir.return_ty },
- &Lvalue::Projection(ref proj) =>
+ Lvalue::Projection(ref proj) =>
proj.base.ty(mir, tcx).projection_ty(tcx, &proj.elem),
}
}
}
&Rvalue::Aggregate(ref ak, ref ops) => {
match *ak {
- AggregateKind::Vec => {
+ AggregateKind::Array => {
if let Some(operand) = ops.get(0) {
let ty = operand.ty(mir, tcx);
Some(tcx.mk_array(ty, ops.len()))
self.super_typed_const_val(val, location);
}
- fn visit_var_decl(&mut self,
- var_decl: & $($mutability)* VarDecl<'tcx>) {
- self.super_var_decl(var_decl);
- }
-
- fn visit_temp_decl(&mut self,
- temp_decl: & $($mutability)* TempDecl<'tcx>) {
- self.super_temp_decl(temp_decl);
- }
-
- fn visit_arg_decl(&mut self,
- arg_decl: & $($mutability)* ArgDecl<'tcx>) {
- self.super_arg_decl(arg_decl);
+ fn visit_local_decl(&mut self,
+ local_decl: & $($mutability)* LocalDecl<'tcx>) {
+ self.super_local_decl(local_decl);
}
fn visit_visibility_scope(&mut self,
self.visit_ty(&$($mutability)* mir.return_ty);
- for var_decl in &$($mutability)* mir.var_decls {
- self.visit_var_decl(var_decl);
- }
-
- for arg_decl in &$($mutability)* mir.arg_decls {
- self.visit_arg_decl(arg_decl);
- }
-
- for temp_decl in &$($mutability)* mir.temp_decls {
- self.visit_temp_decl(temp_decl);
+ for local_decl in &$($mutability)* mir.local_decls {
+ self.visit_local_decl(local_decl);
}
self.visit_span(&$($mutability)* mir.span);
Rvalue::Aggregate(ref $($mutability)* kind,
ref $($mutability)* operands) => {
match *kind {
- AggregateKind::Vec => {
+ AggregateKind::Array => {
}
AggregateKind::Tuple => {
}
context: LvalueContext<'tcx>,
location: Location) {
match *lvalue {
- Lvalue::Var(_) |
- Lvalue::Temp(_) |
- Lvalue::Arg(_) |
- Lvalue::ReturnPointer => {
+ Lvalue::Local(_) => {
}
Lvalue::Static(ref $($mutability)* def_id) => {
self.visit_def_id(def_id, location);
}
}
- fn super_var_decl(&mut self,
- var_decl: & $($mutability)* VarDecl<'tcx>) {
- let VarDecl {
+ fn super_local_decl(&mut self,
+ local_decl: & $($mutability)* LocalDecl<'tcx>) {
+ let LocalDecl {
mutability: _,
- name: _,
ref $($mutability)* ty,
+ name: _,
ref $($mutability)* source_info,
- } = *var_decl;
-
- self.visit_ty(ty);
- self.visit_source_info(source_info);
- }
-
- fn super_temp_decl(&mut self,
- temp_decl: & $($mutability)* TempDecl<'tcx>) {
- let TempDecl {
- ref $($mutability)* ty,
- } = *temp_decl;
-
- self.visit_ty(ty);
- }
-
- fn super_arg_decl(&mut self,
- arg_decl: & $($mutability)* ArgDecl<'tcx>) {
- let ArgDecl {
- ref $($mutability)* ty,
- spread: _,
- debug_name: _
- } = *arg_decl;
+ } = *local_decl;
self.visit_ty(ty);
+ if let Some(ref $($mutability)* info) = *source_info {
+ self.visit_source_info(info);
+ }
}
fn super_visibility_scope(&mut self,
use session::{early_error, early_warn, Session};
use session::search_paths::SearchPaths;
+use rustc_back::PanicStrategy;
use rustc_back::target::Target;
use lint;
use middle::cstore;
use std::collections::btree_map::Keys as BTreeMapKeysIter;
use std::collections::btree_map::Values as BTreeMapValuesIter;
-use std::env;
use std::fmt;
use std::hash::{Hasher, SipHasher};
use std::iter::FromIterator;
}
}
-#[derive(Clone, PartialEq, Hash, RustcEncodable, RustcDecodable)]
-pub enum PanicStrategy {
- Unwind,
- Abort,
-}
-
-impl PanicStrategy {
- pub fn desc(&self) -> &str {
- match *self {
- PanicStrategy::Unwind => "unwind",
- PanicStrategy::Abort => "abort",
- }
- }
-}
-
/// Declare a macro that will define all CodegenOptions/DebuggingOptions fields and parsers all
/// at once. The goal of this macro is to define an interface that can be
/// programmatically used by the option parser in order to initialize the struct
pub const parse_opt_bool: Option<&'static str> =
Some("one of: `y`, `yes`, `on`, `n`, `no`, or `off`");
pub const parse_string: Option<&'static str> = Some("a string");
+ pub const parse_string_push: Option<&'static str> = Some("a string");
pub const parse_opt_string: Option<&'static str> = Some("a string");
pub const parse_list: Option<&'static str> = Some("a space-separated list of strings");
pub const parse_opt_list: Option<&'static str> = Some("a space-separated list of strings");
#[allow(dead_code)]
mod $mod_set {
- use super::{$struct_name, Passes, SomePasses, AllPasses, PanicStrategy};
+ use super::{$struct_name, Passes, SomePasses, AllPasses};
+ use rustc_back::PanicStrategy;
$(
pub fn $opt(cg: &mut $struct_name, v: Option<&str>) -> bool {
}
}
+ fn parse_string_push(slot: &mut Vec<String>, v: Option<&str>) -> bool {
+ match v {
+ Some(s) => { slot.push(s.to_string()); true },
+ None => false,
+ }
+ }
+
fn parse_list(slot: &mut Vec<String>, v: Option<&str>)
-> bool {
match v {
}
}
- fn parse_panic_strategy(slot: &mut PanicStrategy, v: Option<&str>) -> bool {
+ fn parse_panic_strategy(slot: &mut Option<PanicStrategy>, v: Option<&str>) -> bool {
match v {
- Some("unwind") => *slot = PanicStrategy::Unwind,
- Some("abort") => *slot = PanicStrategy::Abort,
+ Some("unwind") => *slot = Some(PanicStrategy::Unwind),
+ Some("abort") => *slot = Some(PanicStrategy::Abort),
_ => return false
}
true
"tool to assemble archives with"),
linker: Option<String> = (None, parse_opt_string, [UNTRACKED],
"system linker to link outputs with"),
+ link_arg: Vec<String> = (vec![], parse_string_push, [UNTRACKED],
+ "a single extra argument to pass to the linker (can be used several times)"),
link_args: Option<Vec<String>> = (None, parse_opt_list, [UNTRACKED],
"extra arguments to pass to the linker (space separated)"),
link_dead_code: bool = (false, parse_bool, [UNTRACKED],
"explicitly enable the cfg(debug_assertions) directive"),
inline_threshold: Option<usize> = (None, parse_opt_uint, [TRACKED],
"set the inlining threshold for"),
- panic: PanicStrategy = (PanicStrategy::Unwind, parse_panic_strategy,
+ panic: Option<PanicStrategy> = (None, parse_panic_strategy,
[TRACKED], "panic strategy to compile crate with"),
}
crate_name: crate_name,
alt_std_name: None,
libs: libs,
- unstable_features: get_unstable_features_setting(),
+ unstable_features: UnstableFeatures::from_environment(),
debug_assertions: debug_assertions,
},
cfg)
}
-pub fn get_unstable_features_setting() -> UnstableFeatures {
- // Whether this is a feature-staged build, i.e. on the beta or stable channel
- let disable_unstable_features = option_env!("CFG_DISABLE_UNSTABLE_FEATURES").is_some();
- // The secret key needed to get through the rustc build itself by
- // subverting the unstable features lints
- let bootstrap_secret_key = option_env!("CFG_BOOTSTRAP_KEY");
- // The matching key to the above, only known by the build system
- let bootstrap_provided_key = env::var("RUSTC_BOOTSTRAP_KEY").ok();
- match (disable_unstable_features, bootstrap_secret_key, bootstrap_provided_key) {
- (_, Some(ref s), Some(ref p)) if s == p => UnstableFeatures::Cheat,
- (true, ..) => UnstableFeatures::Disallow,
- (false, ..) => UnstableFeatures::Allow
- }
-}
-
pub fn parse_crate_types_from_list(list_list: Vec<String>) -> Result<Vec<CrateType>, String> {
let mut crate_types: Vec<CrateType> = Vec::new();
for unparsed_crate_type in &list_list {
pub mod nightly_options {
use getopts;
use syntax::feature_gate::UnstableFeatures;
- use super::{ErrorOutputType, OptionStability, RustcOptGroup, get_unstable_features_setting};
+ use super::{ErrorOutputType, OptionStability, RustcOptGroup};
use session::{early_error, early_warn};
pub fn is_unstable_enabled(matches: &getopts::Matches) -> bool {
}
pub fn is_nightly_build() -> bool {
- match get_unstable_features_setting() {
- UnstableFeatures::Allow | UnstableFeatures::Cheat => true,
- _ => false,
- }
+ UnstableFeatures::from_environment().is_nightly_build()
}
pub fn check_nightly_options(matches: &getopts::Matches, flags: &[RustcOptGroup]) {
let has_z_unstable_option = matches.opt_strs("Z").iter().any(|x| *x == "unstable-options");
- let really_allows_unstable_options = match get_unstable_features_setting() {
- UnstableFeatures::Disallow => false,
- _ => true,
- };
+ let really_allows_unstable_options = UnstableFeatures::from_environment()
+ .is_nightly_build();
for opt in flags.iter() {
if opt.stability == OptionStability::Stable {
use std::collections::BTreeMap;
use std::hash::{Hash, SipHasher};
use std::path::PathBuf;
- use super::{Passes, PanicStrategy, CrateType, OptLevel, DebugInfoLevel,
+ use super::{Passes, CrateType, OptLevel, DebugInfoLevel,
OutputTypes, Externs, ErrorOutputType};
use syntax::feature_gate::UnstableFeatures;
+ use rustc_back::PanicStrategy;
pub trait DepTrackingHash {
fn hash(&self, &mut SipHasher, ErrorOutputType);
impl_dep_tracking_hash_via_hash!(Option<bool>);
impl_dep_tracking_hash_via_hash!(Option<usize>);
impl_dep_tracking_hash_via_hash!(Option<String>);
+ impl_dep_tracking_hash_via_hash!(Option<PanicStrategy>);
impl_dep_tracking_hash_via_hash!(Option<lint::Level>);
impl_dep_tracking_hash_via_hash!(Option<PathBuf>);
impl_dep_tracking_hash_via_hash!(CrateType);
use std::iter::FromIterator;
use std::path::PathBuf;
use std::rc::Rc;
- use super::{OutputType, OutputTypes, Externs, PanicStrategy};
+ use super::{OutputType, OutputTypes, Externs};
+ use rustc_back::PanicStrategy;
use syntax::{ast, attr};
use syntax::parse::token::InternedString;
use syntax::codemap::dummy_spanned;
assert!(reference.dep_tracking_hash() != opts.dep_tracking_hash());
opts = reference.clone();
- opts.cg.panic = PanicStrategy::Abort;
+ opts.cg.panic = Some(PanicStrategy::Abort);
assert!(reference.dep_tracking_hash() != opts.dep_tracking_hash());
}
use middle::cstore::CrateStore;
use middle::dependency_format;
use session::search_paths::PathKind;
-use session::config::{DebugInfoLevel, PanicStrategy};
+use session::config::DebugInfoLevel;
use ty::tls;
use util::nodemap::{NodeMap, FnvHashMap};
use util::common::duration_to_secs_str;
use syntax::feature_gate::AttributeType;
use syntax_pos::{Span, MultiSpan};
+use rustc_back::PanicStrategy;
use rustc_back::target::Target;
use rustc_data_structures::flock;
use llvm;
use std::collections::HashMap;
use std::env;
use std::ffi::CString;
+use std::io::Write;
use std::rc::Rc;
use std::fmt;
use std::time::Duration;
pub fn lto(&self) -> bool {
self.opts.cg.lto
}
+ /// Returns the panic strategy for this compile session. If the user explicitly selected one
+ /// using '-C panic', use that, otherwise use the panic strategy defined by the target.
+ pub fn panic_strategy(&self) -> PanicStrategy {
+ self.opts.cg.panic.unwrap_or(self.target.target.options.panic_strategy)
+ }
pub fn no_landing_pads(&self) -> bool {
- self.opts.debugging_opts.no_landing_pads ||
- self.opts.cg.panic == PanicStrategy::Abort
+ self.opts.debugging_opts.no_landing_pads || self.panic_strategy() == PanicStrategy::Abort
}
pub fn unstable_options(&self) -> bool {
self.opts.debugging_opts.unstable_options
local_crate_source_file,
registry,
cstore,
- Rc::new(codemap::CodeMap::new()))
+ Rc::new(codemap::CodeMap::new()),
+ None)
}
pub fn build_session_with_codemap(sopts: config::Options,
local_crate_source_file: Option<PathBuf>,
registry: errors::registry::Registry,
cstore: Rc<for<'a> CrateStore<'a>>,
- codemap: Rc<codemap::CodeMap>)
+ codemap: Rc<codemap::CodeMap>,
+ emitter_dest: Option<Box<Write + Send>>)
-> Session {
// FIXME: This is not general enough to make the warning lint completely override
// normal diagnostic warnings, since the warning lint can also be denied and changed
.unwrap_or(true);
let treat_err_as_bug = sopts.debugging_opts.treat_err_as_bug;
- let emitter: Box<Emitter> = match sopts.error_format {
- config::ErrorOutputType::HumanReadable(color_config) => {
+ let emitter: Box<Emitter> = match (sopts.error_format, emitter_dest) {
+ (config::ErrorOutputType::HumanReadable(color_config), None) => {
Box::new(EmitterWriter::stderr(color_config,
Some(codemap.clone())))
}
- config::ErrorOutputType::Json => {
+ (config::ErrorOutputType::HumanReadable(_), Some(dst)) => {
+ Box::new(EmitterWriter::new(dst,
+ Some(codemap.clone())))
+ }
+ (config::ErrorOutputType::Json, None) => {
Box::new(JsonEmitter::stderr(Some(registry), codemap.clone()))
}
+ (config::ErrorOutputType::Json, Some(dst)) => {
+ Box::new(JsonEmitter::new(dst, Some(registry), codemap.clone()))
+ }
};
let diagnostic_handler =
use hir::def::DefMap;
use hir::def_id::{CrateNum, DefId, DefIndex, LOCAL_CRATE};
use hir::map as ast_map;
-use hir::map::{DefKey, DefPath, DefPathData, DisambiguatedDefPathData};
+use hir::map::{DefKey, DefPathData, DisambiguatedDefPathData};
use middle::free_region::FreeRegionMap;
use middle::region::RegionMaps;
use middle::resolve_lifetime;
}
}
- pub fn retrace_path(self, path: &DefPath) -> Option<DefId> {
- debug!("retrace_path(path={:?}, krate={:?})", path, self.crate_name(path.krate));
+ pub fn retrace_path(self,
+ krate: CrateNum,
+ path_data: &[DisambiguatedDefPathData])
+ -> Option<DefId> {
+ debug!("retrace_path(path={:?}, krate={:?})", path_data, self.crate_name(krate));
let root_key = DefKey {
parent: None,
},
};
- let root_index = self.def_index_for_def_key(path.krate, root_key)
+ let root_index = self.def_index_for_def_key(krate, root_key)
.expect("no root key?");
debug!("retrace_path: root_index={:?}", root_index);
let mut index = root_index;
- for data in &path.data {
+ for data in path_data {
let key = DefKey { parent: Some(index), disambiguated_data: data.clone() };
debug!("retrace_path: key={:?}", key);
- match self.def_index_for_def_key(path.krate, key) {
+ match self.def_index_for_def_key(krate, key) {
Some(i) => index = i,
None => return None,
}
}
- Some(DefId { krate: path.krate, index: index })
+ Some(DefId { krate: krate, index: index })
}
pub fn type_parameter_def(self,
UnsafetyMismatch(ExpectedFound<hir::Unsafety>),
AbiMismatch(ExpectedFound<abi::Abi>),
Mutability,
- BoxMutability,
- PtrMutability,
- RefMutability,
- VecMutability,
TupleSize(ExpectedFound<usize>),
FixedArraySize(ExpectedFound<usize>),
- TyParamSize(ExpectedFound<usize>),
ArgCount,
RegionsDoesNotOutlive(&'tcx Region, &'tcx Region),
RegionsNotSame(&'tcx Region, &'tcx Region),
RegionsInsufficientlyPolymorphic(BoundRegion, &'tcx Region),
RegionsOverlyPolymorphic(BoundRegion, &'tcx Region),
Sorts(ExpectedFound<Ty<'tcx>>),
- IntegerAsChar,
IntMismatch(ExpectedFound<ty::IntVarValue>),
FloatMismatch(ExpectedFound<ast::FloatTy>),
Traits(ExpectedFound<DefId>),
BuiltinBoundsMismatch(ExpectedFound<ty::BuiltinBounds>),
VariadicMismatch(ExpectedFound<bool>),
CyclicTy,
- ConvergenceMismatch(ExpectedFound<bool>),
ProjectionNameMismatched(ExpectedFound<Name>),
ProjectionBoundsLength(ExpectedFound<usize>),
TyParamDefaultMismatch(ExpectedFound<type_variable::Default<'tcx>>)
values.found)
}
Mutability => write!(f, "types differ in mutability"),
- BoxMutability => {
- write!(f, "boxed types differ in mutability")
- }
- VecMutability => write!(f, "vectors differ in mutability"),
- PtrMutability => write!(f, "pointers differ in mutability"),
- RefMutability => write!(f, "references differ in mutability"),
- TyParamSize(values) => {
- write!(f, "expected a type with {} type params, \
- found one with {} type params",
- values.expected,
- values.found)
- }
FixedArraySize(values) => {
write!(f, "expected an array with a fixed size of {} elements, \
found one with {} elements",
values.found)
}
}
- IntegerAsChar => {
- write!(f, "expected an integral type, found `char`")
- }
IntMismatch(ref values) => {
write!(f, "expected `{:?}`, found `{:?}`",
values.expected,
if values.expected { "variadic" } else { "non-variadic" },
if values.found { "variadic" } else { "non-variadic" })
}
- ConvergenceMismatch(ref values) => {
- write!(f, "expected {} fn, found {} function",
- if values.expected { "converging" } else { "diverging" },
- if values.found { "converging" } else { "diverging" })
- }
ProjectionNameMismatched(ref values) => {
write!(f, "expected {}, found {}",
values.expected,
FloatSimplifiedType(ast::FloatTy),
AdtSimplifiedType(DefId),
StrSimplifiedType,
- VecSimplifiedType,
+ ArraySimplifiedType,
PtrSimplifiedType,
NeverSimplifiedType,
TupleSimplifiedType(usize),
ty::TyFloat(float_type) => Some(FloatSimplifiedType(float_type)),
ty::TyAdt(def, _) => Some(AdtSimplifiedType(def.did)),
ty::TyStr => Some(StrSimplifiedType),
- ty::TyArray(..) | ty::TySlice(_) => Some(VecSimplifiedType),
+ ty::TyArray(..) | ty::TySlice(_) => Some(ArraySimplifiedType),
ty::TyRawPtr(_) => Some(PtrSimplifiedType),
ty::TyTrait(ref trait_info) => {
Some(TraitSimplifiedType(trait_info.principal.def_id()))
/// If true, the size is exact, otherwise it's only a lower bound.
pub sized: bool,
- /// Offsets for the first byte after each field.
- /// That is, field_offset(i) = offset_after_field[i - 1] and the
- /// whole structure's size is the last offset, excluding padding.
- // FIXME(eddyb) use small vector optimization for the common case.
- pub offset_after_field: Vec<Size>
+ /// Offsets for the first byte of each field.
+ /// FIXME(eddyb) use small vector optimization for the common case.
+ pub offsets: Vec<Size>,
+
+ pub min_size: Size,
}
impl<'a, 'gcx, 'tcx> Struct {
align: if packed { dl.i8_align } else { dl.aggregate_align },
packed: packed,
sized: true,
- offset_after_field: vec![]
+ offsets: vec![],
+ min_size: Size::from_bytes(0),
}
}
scapegoat: Ty<'gcx>)
-> Result<(), LayoutError<'gcx>>
where I: Iterator<Item=Result<&'a Layout, LayoutError<'gcx>>> {
- self.offset_after_field.reserve(fields.size_hint().0);
+ self.offsets.reserve(fields.size_hint().0);
+
+ let mut offset = self.min_size;
for field in fields {
if !self.sized {
bug!("Struct::extend: field #{} of `{}` comes after unsized field",
- self.offset_after_field.len(), scapegoat);
+ self.offsets.len(), scapegoat);
}
let field = field?;
}
// Invariant: offset < dl.obj_size_bound() <= 1<<61
- let mut offset = if !self.packed {
+ if !self.packed {
let align = field.align(dl);
self.align = self.align.max(align);
- self.offset_after_field.last_mut().map_or(Size::from_bytes(0), |last| {
- *last = last.abi_align(align);
- *last
- })
- } else {
- self.offset_after_field.last().map_or(Size::from_bytes(0), |&last| last)
- };
+ offset = offset.abi_align(align);
+ }
+
+ self.offsets.push(offset);
+
offset = offset.checked_add(field.size(dl), dl)
.map_or(Err(LayoutError::SizeOverflow(scapegoat)), Ok)?;
-
- self.offset_after_field.push(offset);
}
+ self.min_size = offset;
+
Ok(())
}
/// Get the size without trailing alignment padding.
- pub fn min_size(&self) -> Size {
- self.offset_after_field.last().map_or(Size::from_bytes(0), |&last| last)
- }
/// Get the size with trailing aligment padding.
pub fn stride(&self) -> Size {
- self.min_size().abi_align(self.align)
+ self.min_size.abi_align(self.align)
}
/// Determine whether a structure would be zero-sized, given its fields.
}
Ok(None)
}
-
- pub fn offset_of_field(&self, index: usize) -> Size {
- assert!(index < self.offset_after_field.len());
- if index == 0 {
- Size::from_bytes(0)
- } else {
- self.offset_after_field[index-1]
- }
- }
}
/// An untagged union.
});
let mut st = Struct::new(dl, false);
st.extend(dl, discr.iter().map(Ok).chain(fields), ty)?;
- size = cmp::max(size, st.min_size());
+ size = cmp::max(size, st.min_size);
align = align.max(st.align);
Ok(st)
}).collect::<Result<Vec<_>, _>>()?;
let old_ity_size = Int(min_ity).size(dl);
let new_ity_size = Int(ity).size(dl);
for variant in &mut variants {
- for offset in &mut variant.offset_after_field {
+ for offset in &mut variant.offsets[1..] {
if *offset > old_ity_size {
break;
}
*offset = new_ity_size;
}
+ // We might be making the struct larger.
+ if variant.min_size <= old_ity_size {
+ variant.min_size = new_ity_size;
+ }
}
}
hir::ExprClosure(..) |
hir::ExprBlock(..) |
hir::ExprRepeat(..) |
- hir::ExprVec(..) |
+ hir::ExprArray(..) |
hir::ExprBreak(..) |
hir::ExprAgain(..) |
hir::ExprRet(..) |
UnsafetyMismatch(x) => UnsafetyMismatch(x),
AbiMismatch(x) => AbiMismatch(x),
Mutability => Mutability,
- BoxMutability => BoxMutability,
- PtrMutability => PtrMutability,
- RefMutability => RefMutability,
- VecMutability => VecMutability,
TupleSize(x) => TupleSize(x),
FixedArraySize(x) => FixedArraySize(x),
- TyParamSize(x) => TyParamSize(x),
ArgCount => ArgCount,
RegionsDoesNotOutlive(a, b) => {
return tcx.lift(&(a, b)).map(|(a, b)| RegionsDoesNotOutlive(a, b))
RegionsOverlyPolymorphic(a, b) => {
return tcx.lift(&b).map(|b| RegionsOverlyPolymorphic(a, b))
}
- IntegerAsChar => IntegerAsChar,
IntMismatch(x) => IntMismatch(x),
FloatMismatch(x) => FloatMismatch(x),
Traits(x) => Traits(x),
BuiltinBoundsMismatch(x) => BuiltinBoundsMismatch(x),
VariadicMismatch(x) => VariadicMismatch(x),
CyclicTy => CyclicTy,
- ConvergenceMismatch(x) => ConvergenceMismatch(x),
ProjectionNameMismatched(x) => ProjectionNameMismatched(x),
ProjectionBoundsLength(x) => ProjectionBoundsLength(x),
use hir::def_id::DefId;
use infer::InferCtxt;
+use hir::map as ast_map;
use hir::pat_util;
use traits::{self, Reveal};
use ty::{self, Ty, AdtKind, TyCtxt, TypeAndMut, TypeFlags, TypeFoldable};
}
}
+// When hashing a type this ends up affecting properties like symbol names. We
+// want these symbol names to be calculated independent of other factors like
+// what architecture you're compiling *from*.
+//
+// The hashing just uses the standard `Hash` trait, but the implementations of
+// `Hash` for the `usize` and `isize` types are *not* architecture independent
+// (e.g. they has 4 or 8 bytes). As a result we want to avoid `usize` and
+// `isize` completely when hashing. To ensure that these don't leak in we use a
+// custom hasher implementation here which inflates the size of these to a `u64`
+// and `i64`.
+struct WidenUsizeHasher<H> {
+ inner: H,
+}
+
+impl<H> WidenUsizeHasher<H> {
+ fn new(inner: H) -> WidenUsizeHasher<H> {
+ WidenUsizeHasher { inner: inner }
+ }
+}
+
+impl<H: Hasher> Hasher for WidenUsizeHasher<H> {
+ fn write(&mut self, bytes: &[u8]) {
+ self.inner.write(bytes)
+ }
+
+ fn finish(&self) -> u64 {
+ self.inner.finish()
+ }
+
+ fn write_u8(&mut self, i: u8) {
+ self.inner.write_u8(i)
+ }
+ fn write_u16(&mut self, i: u16) {
+ self.inner.write_u16(i)
+ }
+ fn write_u32(&mut self, i: u32) {
+ self.inner.write_u32(i)
+ }
+ fn write_u64(&mut self, i: u64) {
+ self.inner.write_u64(i)
+ }
+ fn write_usize(&mut self, i: usize) {
+ self.inner.write_u64(i as u64)
+ }
+ fn write_i8(&mut self, i: i8) {
+ self.inner.write_i8(i)
+ }
+ fn write_i16(&mut self, i: i16) {
+ self.inner.write_i16(i)
+ }
+ fn write_i32(&mut self, i: i32) {
+ self.inner.write_i32(i)
+ }
+ fn write_i64(&mut self, i: i64) {
+ self.inner.write_i64(i)
+ }
+ fn write_isize(&mut self, i: isize) {
+ self.inner.write_i64(i as i64)
+ }
+}
+
pub struct TypeIdHasher<'a, 'gcx: 'a+'tcx, 'tcx: 'a, H> {
tcx: TyCtxt<'a, 'gcx, 'tcx>,
- state: H
+ state: WidenUsizeHasher<H>,
}
impl<'a, 'gcx, 'tcx, H: Hasher> TypeIdHasher<'a, 'gcx, 'tcx, H> {
pub fn new(tcx: TyCtxt<'a, 'gcx, 'tcx>, state: H) -> Self {
TypeIdHasher {
tcx: tcx,
- state: state
+ state: WidenUsizeHasher::new(state),
}
}
fn def_id(&mut self, did: DefId) {
// Hash the DefPath corresponding to the DefId, which is independent
// of compiler internal state.
- let tcx = self.tcx;
- let def_path = tcx.def_path(did);
- def_path.deterministic_hash_to(tcx, &mut self.state);
+ let path = self.tcx.def_path(did);
+ self.def_path(&path)
+ }
+
+ pub fn def_path(&mut self, def_path: &ast_map::DefPath) {
+ def_path.deterministic_hash_to(self.tcx, &mut self.state);
}
}
extern crate serialize;
#[macro_use] extern crate log;
+extern crate serialize as rustc_serialize; // used by deriving
+
pub mod tempdir;
pub mod sha2;
pub mod target;
pub mod slice;
pub mod dynamic_lib;
+
+use serialize::json::{Json, ToJson};
+
+#[derive(Clone, Copy, Debug, PartialEq, Hash, RustcEncodable, RustcDecodable)]
+pub enum PanicStrategy {
+ Unwind,
+ Abort,
+}
+
+impl PanicStrategy {
+ pub fn desc(&self) -> &str {
+ match *self {
+ PanicStrategy::Unwind => "unwind",
+ PanicStrategy::Abort => "abort",
+ }
+ }
+}
+
+impl ToJson for PanicStrategy {
+ fn to_json(&self) -> Json {
+ match *self {
+ PanicStrategy::Abort => "abort".to_json(),
+ PanicStrategy::Unwind => "unwind".to_json(),
+ }
+ }
+}
allow_asm: false,
obj_is_bitcode: true,
max_atomic_width: 32,
+ post_link_args: vec!["-s".to_string(), "ERROR_ON_UNDEFINED_SYMBOLS=1".to_string()],
.. Default::default()
};
Ok(Target {
--- /dev/null
+// Copyright 2014-2015 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+use target::TargetOptions;
+use std::default::Default;
+
+pub fn opts() -> TargetOptions {
+ TargetOptions {
+ linker: "cc".to_string(),
+ dynamic_linking: true,
+ executables: true,
+ has_rpath: true,
+ linker_is_gnu: true,
+ .. Default::default()
+ }
+}
--- /dev/null
+// Copyright 2014 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+use target::{Target, TargetResult};
+
+pub fn target() -> TargetResult {
+ let mut base = super::haiku_base::opts();
+ base.cpu = "pentium4".to_string();
+ base.max_atomic_width = 64;
+ base.pre_link_args.push("-m32".to_string());
+
+ Ok(Target {
+ llvm_target: "i686-unknown-haiku".to_string(),
+ target_endian: "little".to_string(),
+ target_pointer_width: "32".to_string(),
+ data_layout: "e-m:e-p:32:32-f64:32:64-f80:32-n8:16:32-S128".to_string(),
+ arch: "x86".to_string(),
+ target_os: "haiku".to_string(),
+ target_env: "".to_string(),
+ target_vendor: "unknown".to_string(),
+ options: base,
+ })
+}
llvm_target: "mips64-unknown-linux-gnuabi64".to_string(),
target_endian: "big".to_string(),
target_pointer_width: "64".to_string(),
- data_layout: "E-m:m-i8:8:32-i16:16:32-i64:64-n32:64-S128".to_string(),
+ data_layout: "E-m:e-i8:8:32-i16:16:32-i64:64-n32:64-S128".to_string(),
arch: "mips64".to_string(),
target_os: "linux".to_string(),
target_env: "gnu".to_string(),
llvm_target: "mips64el-unknown-linux-gnuabi64".to_string(),
target_endian: "little".to_string(),
target_pointer_width: "64".to_string(),
- data_layout: "e-m:m-i8:8:32-i16:16:32-i64:64-n32:64-S128".to_string(),
+ data_layout: "e-m:e-i8:8:32-i16:16:32-i64:64-n32:64-S128".to_string(),
arch: "mips64".to_string(),
target_os: "linux".to_string(),
target_env: "gnu".to_string(),
use std::io::prelude::*;
use syntax::abi::Abi;
+use PanicStrategy;
+
mod android_base;
mod apple_base;
mod apple_ios_base;
mod bitrig_base;
mod dragonfly_base;
mod freebsd_base;
+mod haiku_base;
mod linux_base;
mod linux_musl_base;
mod openbsd_base;
("x86_64-unknown-netbsd", x86_64_unknown_netbsd),
("x86_64-rumprun-netbsd", x86_64_rumprun_netbsd),
+ ("i686-unknown-haiku", i686_unknown_haiku),
+ ("x86_64-unknown-haiku", x86_64_unknown_haiku),
+
("x86_64-apple-darwin", x86_64_apple_darwin),
("i686-apple-darwin", i686_apple_darwin),
("i586-pc-windows-msvc", i586_pc_windows_msvc),
("le32-unknown-nacl", le32_unknown_nacl),
- ("asmjs-unknown-emscripten", asmjs_unknown_emscripten)
+ ("asmjs-unknown-emscripten", asmjs_unknown_emscripten),
+ ("wasm32-unknown-emscripten", wasm32_unknown_emscripten)
}
/// Everything `rustc` knows about how to compile for a specific target.
/// Maximum integer size in bits that this target can perform atomic
/// operations on.
pub max_atomic_width: u64,
+
+ /// Panic strategy: "unwind" or "abort"
+ pub panic_strategy: PanicStrategy,
}
impl Default for TargetOptions {
has_elf_tls: false,
obj_is_bitcode: false,
max_atomic_width: 0,
+ panic_strategy: PanicStrategy::Unwind,
}
}
}
.map(|o| o.as_u64()
.map(|s| base.options.$key_name = s));
} );
+ ($key_name:ident, PanicStrategy) => ( {
+ let name = (stringify!($key_name)).replace("_", "-");
+ obj.find(&name[..]).and_then(|o| o.as_string().and_then(|s| {
+ match s {
+ "unwind" => base.options.$key_name = PanicStrategy::Unwind,
+ "abort" => base.options.$key_name = PanicStrategy::Abort,
+ _ => return Some(Err(format!("'{}' is not a valid value for \
+ panic-strategy. Use 'unwind' or 'abort'.",
+ s))),
+ }
+ Some(Ok(()))
+ })).unwrap_or(Ok(()))
+ } );
($key_name:ident, list) => ( {
let name = (stringify!($key_name)).replace("_", "-");
obj.find(&name[..]).map(|o| o.as_array()
key!(has_elf_tls, bool);
key!(obj_is_bitcode, bool);
key!(max_atomic_width, u64);
+ try!(key!(panic_strategy, PanicStrategy));
Ok(base)
}
target_option_val!(has_elf_tls);
target_option_val!(obj_is_bitcode);
target_option_val!(max_atomic_width);
+ target_option_val!(panic_strategy);
Json::Object(d)
}
--- /dev/null
+// Copyright 2015 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+use super::{Target, TargetOptions};
+
+pub fn target() -> Result<Target, String> {
+ let opts = TargetOptions {
+ linker: "emcc".to_string(),
+ ar: "emar".to_string(),
+
+ dynamic_linking: false,
+ executables: true,
+ // Today emcc emits two files - a .js file to bootstrap and
+ // possibly interpret the wasm, and a .wasm file
+ exe_suffix: ".js".to_string(),
+ linker_is_gnu: true,
+ allow_asm: false,
+ obj_is_bitcode: true,
+ max_atomic_width: 32,
+ post_link_args: vec!["-s".to_string(), "BINARYEN=1".to_string(),
+ "-s".to_string(), "ERROR_ON_UNDEFINED_SYMBOLS=1".to_string()],
+ .. Default::default()
+ };
+ Ok(Target {
+ llvm_target: "asmjs-unknown-emscripten".to_string(),
+ target_endian: "little".to_string(),
+ target_pointer_width: "32".to_string(),
+ target_os: "emscripten".to_string(),
+ target_env: "".to_string(),
+ target_vendor: "unknown".to_string(),
+ data_layout: "e-p:32:32-i64:64-v128:32:128-n32-S128".to_string(),
+ arch: "wasm32".to_string(),
+ options: opts,
+ })
+}
--- /dev/null
+// Copyright 2014 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+use target::{Target, TargetResult};
+
+pub fn target() -> TargetResult {
+ let mut base = super::haiku_base::opts();
+ base.cpu = "x86-64".to_string();
+ base.max_atomic_width = 64;
+ base.pre_link_args.push("-m64".to_string());
+
+ Ok(Target {
+ llvm_target: "x86_64-unknown-haiku".to_string(),
+ target_endian: "little".to_string(),
+ target_pointer_width: "64".to_string(),
+ data_layout: "e-m:e-i64:64-f80:128-n8:16:32:64-S128".to_string(),
+ arch: "x86_64".to_string(),
+ target_os: "haiku".to_string(),
+ target_env: "".to_string(),
+ target_vendor: "unknown".to_string(),
+ options: base,
+ })
+}
};
assert!(args.len() == 1);
let peek_arg_lval = match args[0] {
- repr::Operand::Consume(ref lval @ repr::Lvalue::Temp(_)) => {
- lval
- }
- repr::Operand::Consume(_) |
- repr::Operand::Constant(_) => {
+ repr::Operand::Consume(ref lval @ repr::Lvalue::Local(_)) => Some(lval),
+ _ => None,
+ };
+
+ let peek_arg_lval = match peek_arg_lval {
+ Some(arg) => arg,
+ None => {
tcx.sess.diagnostic().span_err(
span, "dataflow::sanity_check cannot feed a non-temp to rustc_peek.");
return;
env: &'a MoveDataParamEnv<'tcx>,
flow_inits: DataflowResults<MaybeInitializedLvals<'a, 'tcx>>,
flow_uninits: DataflowResults<MaybeUninitializedLvals<'a, 'tcx>>,
- drop_flags: FnvHashMap<MovePathIndex, Temp>,
+ drop_flags: FnvHashMap<MovePathIndex, Local>,
patch: MirPatch<'tcx>,
}
}
fn drop_flag(&mut self, index: MovePathIndex) -> Option<Lvalue<'tcx>> {
- self.drop_flags.get(&index).map(|t| Lvalue::Temp(*t))
+ self.drop_flags.get(&index).map(|t| Lvalue::Local(*t))
}
/// create a patch that elaborates all drops in the input
statements.push(Statement {
source_info: c.source_info,
kind: StatementKind::Assign(
- Lvalue::Temp(flag),
+ Lvalue::Local(flag),
self.constant_bool(c.source_info.span, false)
)
});
}
let tcx = self.tcx;
- let unit_temp = Lvalue::Temp(self.patch.new_temp(tcx.mk_nil()));
+ let unit_temp = Lvalue::Local(self.patch.new_temp(tcx.mk_nil()));
let free_func = tcx.lang_items.require(lang_items::BoxFreeFnLangItem)
.unwrap_or_else(|e| tcx.sess.fatal(&e));
let substs = Substs::new(tcx, iter::once(Kind::from(ty)));
if let Some(&flag) = self.drop_flags.get(&path) {
let span = self.patch.source_info_for_location(self.mir, loc).span;
let val = self.constant_bool(span, val.value());
- self.patch.add_assign(loc, Lvalue::Temp(flag), val);
+ self.patch.add_assign(loc, Lvalue::Local(flag), val);
}
}
let span = self.patch.source_info_for_location(self.mir, loc).span;
let false_ = self.constant_bool(span, false);
for flag in self.drop_flags.values() {
- self.patch.add_assign(loc, Lvalue::Temp(*flag), false_.clone());
+ self.patch.add_assign(loc, Lvalue::Local(*flag), false_.clone());
}
}
/// Tables mapping from an l-value to its MovePathIndex.
#[derive(Debug)]
pub struct MovePathLookup<'tcx> {
- vars: IndexVec<Var, MovePathIndex>,
- temps: IndexVec<Temp, MovePathIndex>,
- args: IndexVec<Arg, MovePathIndex>,
-
- /// The move path representing the return value is constructed
- /// lazily when we first encounter it in the input MIR.
- return_ptr: Option<MovePathIndex>,
+ locals: IndexVec<Local, MovePathIndex>,
/// projections are made from a base-lvalue and a projection
/// elem. The base-lvalue will have a unique MovePathIndex; we use
moves: IndexVec::new(),
loc_map: LocationMap::new(mir),
rev_lookup: MovePathLookup {
- vars: mir.var_decls.indices().map(Lvalue::Var).map(|v| {
+ locals: mir.local_decls.indices().map(Lvalue::Local).map(|v| {
Self::new_move_path(&mut move_paths, &mut path_map, None, v)
}).collect(),
- temps: mir.temp_decls.indices().map(Lvalue::Temp).map(|t| {
- Self::new_move_path(&mut move_paths, &mut path_map, None, t)
- }).collect(),
- args: mir.arg_decls.indices().map(Lvalue::Arg).map(|a| {
- Self::new_move_path(&mut move_paths, &mut path_map, None, a)
- }).collect(),
- return_ptr: None,
projections: FnvHashMap(),
},
move_paths: move_paths,
{
debug!("lookup({:?})", lval);
match *lval {
- Lvalue::Var(var) => Ok(self.data.rev_lookup.vars[var]),
- Lvalue::Arg(arg) => Ok(self.data.rev_lookup.args[arg]),
- Lvalue::Temp(temp) => Ok(self.data.rev_lookup.temps[temp]),
+ Lvalue::Local(local) => Ok(self.data.rev_lookup.locals[local]),
// error: can't move out of a static
Lvalue::Static(..) => Err(MovePathError::IllegalMove),
- Lvalue::ReturnPointer => match self.data.rev_lookup.return_ptr {
- Some(ptr) => Ok(ptr),
- ref mut ptr @ None => {
- let path = Self::new_move_path(
- &mut self.data.move_paths,
- &mut self.data.path_map,
- None,
- lval.clone());
- *ptr = Some(path);
- Ok(path)
- }
- },
Lvalue::Projection(ref proj) => {
self.move_path_for_projection(lval, proj)
}
// parent.
pub fn find(&self, lval: &Lvalue<'tcx>) -> LookupResult {
match *lval {
- Lvalue::Var(var) => LookupResult::Exact(self.vars[var]),
- Lvalue::Temp(temp) => LookupResult::Exact(self.temps[temp]),
- Lvalue::Arg(arg) => LookupResult::Exact(self.args[arg]),
+ Lvalue::Local(local) => LookupResult::Exact(self.locals[local]),
Lvalue::Static(..) => LookupResult::Parent(None),
- Lvalue::ReturnPointer => LookupResult::Exact(self.return_ptr.unwrap()),
Lvalue::Projection(ref proj) => {
match self.find(&proj.base) {
LookupResult::Exact(base_path) => {
TerminatorKind::Unreachable => { }
TerminatorKind::Return => {
- self.gather_move(loc, &Lvalue::ReturnPointer);
+ self.gather_move(loc, &Lvalue::Local(RETURN_POINTER));
}
TerminatorKind::If { .. } |
where F: FnMut(MovePathIndex, DropFlagState)
{
let move_data = &ctxt.move_data;
- for (arg, _) in mir.arg_decls.iter_enumerated() {
- let lvalue = repr::Lvalue::Arg(arg);
+ for arg in mir.args_iter() {
+ let lvalue = repr::Lvalue::Local(arg);
let lookup_result = move_data.rev_lookup.find(&lvalue);
on_lookup_result_bits(tcx, mir, move_data,
lookup_result,
patch_map: IndexVec<BasicBlock, Option<TerminatorKind<'tcx>>>,
new_blocks: Vec<BasicBlockData<'tcx>>,
new_statements: Vec<(Location, StatementKind<'tcx>)>,
- new_temps: Vec<TempDecl<'tcx>>,
+ new_locals: Vec<LocalDecl<'tcx>>,
resume_block: BasicBlock,
- next_temp: usize,
+ next_local: usize,
}
impl<'tcx> MirPatch<'tcx> {
let mut result = MirPatch {
patch_map: IndexVec::from_elem(None, mir.basic_blocks()),
new_blocks: vec![],
- new_temps: vec![],
new_statements: vec![],
- next_temp: mir.temp_decls.len(),
+ new_locals: vec![],
+ next_local: mir.local_decls.len(),
resume_block: START_BLOCK
};
}
}
- pub fn new_temp(&mut self, ty: Ty<'tcx>) -> Temp {
- let index = self.next_temp;
- self.next_temp += 1;
- self.new_temps.push(TempDecl { ty: ty });
- Temp::new(index as usize)
+ pub fn new_temp(&mut self, ty: Ty<'tcx>) -> Local {
+ let index = self.next_local;
+ self.next_local += 1;
+ self.new_locals.push(LocalDecl::new_temp(ty));
+ Local::new(index as usize)
}
pub fn new_block(&mut self, data: BasicBlockData<'tcx>) -> BasicBlock {
pub fn apply(self, mir: &mut Mir<'tcx>) {
debug!("MirPatch: {:?} new temps, starting from index {}: {:?}",
- self.new_temps.len(), mir.temp_decls.len(), self.new_temps);
+ self.new_locals.len(), mir.local_decls.len(), self.new_locals);
debug!("MirPatch: {} new blocks, starting from index {}",
self.new_blocks.len(), mir.basic_blocks().len());
mir.basic_blocks_mut().extend(self.new_blocks);
- mir.temp_decls.extend(self.new_temps);
+ mir.local_decls.extend(self.new_locals);
for (src, patch) in self.patch_map.into_iter_enumerated() {
if let Some(patch) = patch {
debug!("MirPatch: patching block {:?}", src);
}
PatKind::Box(inner) => PatKind::Box(self.fold_pat(inner)),
PatKind::Ref(inner, mutbl) => PatKind::Ref(self.fold_pat(inner), mutbl),
- PatKind::Vec(before, slice, after) => {
- PatKind::Vec(before.move_map(|x| self.fold_pat(x)),
- slice.map(|x| self.fold_pat(x)),
- after.move_map(|x| self.fold_pat(x)))
+ PatKind::Slice(before, slice, after) => {
+ PatKind::Slice(before.move_map(|x| self.fold_pat(x)),
+ slice.map(|x| self.fold_pat(x)),
+ after.move_map(|x| self.fold_pat(x)))
}
PatKind::Wild |
PatKind::Lit(_) |
ty::TySlice(_) => match ctor {
&Slice(n) => {
assert_eq!(pats_len, n);
- PatKind::Vec(pats.collect(), None, hir::HirVec::new())
+ PatKind::Slice(pats.collect(), None, hir::HirVec::new())
},
_ => unreachable!()
},
ty::TyArray(_, len) => {
assert_eq!(pats_len, len);
- PatKind::Vec(pats.collect(), None, hir::HirVec::new())
+ PatKind::Slice(pats.collect(), None, hir::HirVec::new())
}
_ => {
};
let max_slice_length = rows.iter().filter_map(|row| match row[0].0.node {
- PatKind::Vec(ref before, _, ref after) => Some(before.len() + after.len()),
+ PatKind::Slice(ref before, _, ref after) => Some(before.len() + after.len()),
_ => None
}).max().map_or(0, |v| v + 1);
vec![ConstantValue(eval_const_expr(cx.tcx, &expr))],
PatKind::Range(ref lo, ref hi) =>
vec![ConstantRange(eval_const_expr(cx.tcx, &lo), eval_const_expr(cx.tcx, &hi))],
- PatKind::Vec(ref before, ref slice, ref after) =>
+ PatKind::Slice(ref before, ref slice, ref after) =>
match left_ty.sty {
ty::TyArray(..) => vec![Single],
ty::TySlice(_) if slice.is_some() => {
}
}
- PatKind::Vec(ref before, ref slice, ref after) => {
+ PatKind::Slice(ref before, ref slice, ref after) => {
let pat_len = before.len() + after.len();
match *constructor {
Single => {
PatKind::Struct(path.clone(), field_pats, false)
}
- hir::ExprVec(ref exprs) => {
+ hir::ExprArray(ref exprs) => {
let pats = exprs.iter()
.map(|expr| const_expr_to_pat(tcx, &expr, pat_id, span))
.collect::<Result<_, _>>()?;
- PatKind::Vec(pats, None, hir::HirVec::new())
+ PatKind::Slice(pats, None, hir::HirVec::new())
}
hir::ExprPath(_, ref path) => {
Array(_, n) if idx >= n => {
signal!(e, IndexOutOfBounds { len: n, index: idx })
}
- Array(v, n) => if let hir::ExprVec(ref v) = tcx.map.expect_expr(v).node {
+ Array(v, n) => if let hir::ExprArray(ref v) = tcx.map.expect_expr(v).node {
assert_eq!(n as usize as u64, n);
eval_const_expr_partial(tcx, &v[idx as usize], ty_hint, fn_args)?
} else {
_ => signal!(e, IndexedNonVec),
}
}
- hir::ExprVec(ref v) => Array(e.id, v.len() as u64),
+ hir::ExprArray(ref v) => Array(e.id, v.len() as u64),
hir::ExprRepeat(_, ref n) => {
let len_hint = ty_hint.checked_or(tcx.types.usize);
Repeat(
pub const F_SETLKW: libc::c_int = 9;
}
+ #[cfg(target_os = "haiku")]
+ mod os {
+ use libc;
+
+ pub struct flock {
+ pub l_type: libc::c_short,
+ pub l_whence: libc::c_short,
+ pub l_start: libc::off_t,
+ pub l_len: libc::off_t,
+ pub l_pid: libc::pid_t,
+
+ // not actually here, but brings in line with freebsd
+ pub l_sysid: libc::c_int,
+ }
+
+ pub const F_UNLCK: libc::c_short = 0x0200;
+ pub const F_WRLCK: libc::c_short = 0x0400;
+ pub const F_SETLK: libc::c_int = 0x0080;
+ pub const F_SETLKW: libc::c_int = 0x0100;
+ }
+
#[cfg(any(target_os = "macos", target_os = "ios"))]
mod os {
use libc;
}
sess.track_errors(|| sess.lint_store.borrow_mut().process_command_line(sess))?;
+ // Currently, we ignore the name resolution data structures for the purposes of dependency
+ // tracking. Instead we will run name resolution and include its output in the hash of each
+ // item, much like we do for macro expansion. In other words, the hash reflects not just
+ // its contents but the results of name resolution on those contents. Hopefully we'll push
+ // this back at some point.
+ let _ignore = sess.dep_graph.in_ignore();
let mut crate_loader = CrateLoader::new(sess, &cstore, &krate, crate_name);
let resolver_arenas = Resolver::arenas();
let mut resolver =
})
})?;
- // Collect defintions for def ids.
- time(sess.time_passes(), "collecting defs", || resolver.definitions.collect(&krate));
-
time(sess.time_passes(),
"early lint checks",
|| lint::check_ast_crate(sess, &krate));
|| ast_validation::check_crate(sess, &krate));
time(sess.time_passes(), "name resolution", || -> CompileResult {
- // Currently, we ignore the name resolution data structures for the purposes of dependency
- // tracking. Instead we will run name resolution and include its output in the hash of each
- // item, much like we do for macro expansion. In other words, the hash reflects not just
- // its contents but the results of name resolution on those contents. Hopefully we'll push
- // this back at some point.
- let _ignore = sess.dep_graph.in_ignore();
- resolver.build_reduced_graph(&krate);
resolver.resolve_imports();
// Since import resolution will eventually happen in expansion,
use rustc::dep_graph::DepGraph;
use rustc::session::{self, config, Session, build_session, CompileResult};
use rustc::session::config::{Input, PrintRequest, OutputType, ErrorOutputType};
-use rustc::session::config::{get_unstable_features_setting, nightly_options};
+use rustc::session::config::nightly_options;
+use rustc::session::early_error;
use rustc::lint::Lint;
use rustc::lint;
use rustc_metadata::loader;
use std::sync::{Arc, Mutex};
use std::thread;
-use rustc::session::early_error;
-
use syntax::{ast, json};
use syntax::codemap::{CodeMap, FileLoader, RealFileLoader};
use syntax::feature_gate::{GatedCfg, UnstableFeatures};
}
}
-pub fn run(args: Vec<String>) -> isize {
+pub fn run<F>(run_compiler: F) -> isize
+ where F: FnOnce() -> (CompileResult, Option<Session>) + Send + 'static
+{
monitor(move || {
- let (result, session) = run_compiler(&args, &mut RustcDefaultCalls);
+ let (result, session) = run_compiler();
if let Err(err_count) = result {
if err_count > 0 {
match session {
Some(sess) => sess.fatal(&abort_msg(err_count)),
None => {
let emitter =
- errors::emitter::EmitterWriter::stderr(errors::ColorConfig::Auto,
- None);
+ errors::emitter::EmitterWriter::stderr(errors::ColorConfig::Auto, None);
let handler = errors::Handler::with_emitter(true, false, Box::new(emitter));
handler.emit(&MultiSpan::new(),
&abort_msg(err_count),
0
}
-pub fn run_compiler<'a>(args: &[String],
- callbacks: &mut CompilerCalls<'a>)
- -> (CompileResult, Option<Session>) {
- run_compiler_with_file_loader(args, callbacks, box RealFileLoader)
-}
-
// Parse args and run the compiler. This is the primary entry point for rustc.
// See comments on CompilerCalls below for details about the callbacks argument.
// The FileLoader provides a way to load files from sources other than the file system.
-pub fn run_compiler_with_file_loader<'a, L>(args: &[String],
- callbacks: &mut CompilerCalls<'a>,
- loader: Box<L>)
- -> (CompileResult, Option<Session>)
- where L: FileLoader + 'static {
+pub fn run_compiler<'a>(args: &[String],
+ callbacks: &mut CompilerCalls<'a>,
+ file_loader: Option<Box<FileLoader + 'static>>,
+ emitter_dest: Option<Box<Write + Send>>)
+ -> (CompileResult, Option<Session>)
+{
macro_rules! do_or_return {($expr: expr, $sess: expr) => {
match $expr {
Compilation::Stop => return (Ok(()), $sess),
let dep_graph = DepGraph::new(sopts.build_dep_graph());
let cstore = Rc::new(CStore::new(&dep_graph));
+
+ let loader = file_loader.unwrap_or(box RealFileLoader);
let codemap = Rc::new(CodeMap::with_file_loader(loader));
let sess = session::build_session_with_codemap(sopts,
&dep_graph,
input_file_path,
descriptions,
cstore.clone(),
- codemap);
+ codemap,
+ emitter_dest);
rustc_lint::register_builtins(&mut sess.lint_store.borrow_mut(), Some(&sess));
let mut cfg = config::build_configuration(&sess, cfg);
target_features::add_configuration(&mut cfg, &sess);
}
}
PrintRequest::Cfg => {
- let allow_unstable_cfg = match get_unstable_features_setting() {
- UnstableFeatures::Disallow => false,
- _ => true,
- };
+ let allow_unstable_cfg = UnstableFeatures::from_environment()
+ .is_nightly_build();
for cfg in cfg {
if !allow_unstable_cfg && GatedCfg::gate(&*cfg).is_some() {
}
let thread = cfg.spawn(move || {
- io::set_panic(box err);
+ io::set_panic(Some(box err));
f()
});
// Panic so the process returns a failure code, but don't pollute the
// output with some unnecessary panic messages, we've already
// printed everything that we needed to.
- io::set_panic(box io::sink());
+ io::set_panic(Some(box io::sink()));
panic!();
}
}
pub fn main() {
- let result = run(env::args().collect());
+ let result = run(|| run_compiler(&env::args().collect::<Vec<_>>(),
+ &mut RustcDefaultCalls,
+ None,
+ None));
process::exit(result as i32);
}
pub fn new(dst: Box<Write + Send>,
code_map: Option<Rc<CodeMapper>>)
-> EmitterWriter {
- EmitterWriter { dst: Raw(dst),
- cm: code_map}
+ EmitterWriter {
+ dst: Raw(dst),
+ cm: code_map,
+ }
}
fn preprocess_annotations(&self, msp: &MultiSpan) -> Vec<FileWithAnnotatedLines> {
SawExprAgain(Option<token::InternedString>),
SawExprBox,
- SawExprVec,
+ SawExprArray,
SawExprCall,
SawExprMethodCall,
SawExprTup,
fn saw_expr<'a>(node: &'a Expr_) -> SawExprComponent<'a> {
match *node {
ExprBox(..) => SawExprBox,
- ExprVec(..) => SawExprVec,
+ ExprArray(..) => SawExprArray,
ExprCall(..) => SawExprCall,
ExprMethodCall(..) => SawExprMethodCall,
ExprTup(..) => SawExprTup,
use rustc::util::nodemap::DefIdMap;
use std::fmt::{self, Debug};
use std::iter::once;
+use std::collections::HashMap;
/// Index into the DefIdDirectory
#[derive(Copy, Clone, Debug, PartialOrd, Ord, Hash, PartialEq, Eq,
}
pub fn retrace(&self, tcx: TyCtxt) -> RetracedDefIdDirectory {
- let max_current_crate = self.max_current_crate(tcx);
+
+ fn make_key(name: &str, disambiguator: &str) -> String {
+ format!("{}/{}", name, disambiguator)
+ }
+
+ let new_krates: HashMap<_, _> =
+ once(LOCAL_CRATE)
+ .chain(tcx.sess.cstore.crates())
+ .map(|krate| (make_key(&tcx.crate_name(krate),
+ &tcx.crate_disambiguator(krate)), krate))
+ .collect();
let ids = self.paths.iter()
.map(|path| {
- if self.krate_still_valid(tcx, max_current_crate, path.krate) {
- tcx.retrace_path(path)
+ let old_krate_id = path.krate.as_usize();
+ assert!(old_krate_id < self.krates.len());
+ let old_crate_info = &self.krates[old_krate_id];
+ let old_crate_key = make_key(&old_crate_info.name,
+ &old_crate_info.disambiguator);
+ if let Some(&new_crate_key) = new_krates.get(&old_crate_key) {
+ tcx.retrace_path(new_crate_key, &path.data)
} else {
- debug!("crate {} changed from {:?} to {:?}/{:?}",
- path.krate,
- self.krates[path.krate.as_usize()],
- tcx.crate_name(path.krate),
- tcx.crate_disambiguator(path.krate));
+ debug!("crate {:?} no longer exists", old_crate_key);
None
}
})
--- /dev/null
+// Copyright 2016 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+//! This module defines a generic file format that allows to check if a given
+//! file generated by incremental compilation was generated by a compatible
+//! compiler version. This file format is used for the on-disk version of the
+//! dependency graph and the exported metadata hashes.
+//!
+//! In practice "compatible compiler version" means "exactly the same compiler
+//! version", since the header encodes the git commit hash of the compiler.
+//! Since we can always just ignore the incremental compilation cache and
+//! compiler versions don't change frequently for the typical user, being
+//! conservative here practically has no downside.
+
+use std::io::{self, Read};
+use std::path::Path;
+use std::fs::File;
+use std::env;
+
+use rustc::session::config::nightly_options;
+
+/// The first few bytes of files generated by incremental compilation
+const FILE_MAGIC: &'static [u8] = b"RSIC";
+
+/// Change this if the header format changes
+const HEADER_FORMAT_VERSION: u16 = 0;
+
+/// A version string that hopefully is always different for compiler versions
+/// with different encodings of incremental compilation artifacts. Contains
+/// the git commit hash.
+const RUSTC_VERSION: Option<&'static str> = option_env!("CFG_VERSION");
+
+pub fn write_file_header<W: io::Write>(stream: &mut W) -> io::Result<()> {
+ stream.write_all(FILE_MAGIC)?;
+ stream.write_all(&[(HEADER_FORMAT_VERSION >> 0) as u8,
+ (HEADER_FORMAT_VERSION >> 8) as u8])?;
+
+ let rustc_version = rustc_version();
+ assert_eq!(rustc_version.len(), (rustc_version.len() as u8) as usize);
+ stream.write_all(&[rustc_version.len() as u8])?;
+ stream.write_all(rustc_version.as_bytes())?;
+
+ Ok(())
+}
+
+/// Reads the contents of a file with a file header as defined in this module.
+///
+/// - Returns `Ok(Some(data))` if the file existed and was generated by a
+/// compatible compiler version. `data` is the entire contents of the file
+/// *after* the header.
+/// - Returns `Ok(None)` if the file did not exist or was generated by an
+/// incompatible version of the compiler.
+/// - Returns `Err(..)` if some kind of IO error occurred while reading the
+/// file.
+pub fn read_file(path: &Path) -> io::Result<Option<Vec<u8>>> {
+ if !path.exists() {
+ return Ok(None);
+ }
+
+ let mut file = File::open(path)?;
+
+ // Check FILE_MAGIC
+ {
+ debug_assert!(FILE_MAGIC.len() == 4);
+ let mut file_magic = [0u8; 4];
+ file.read_exact(&mut file_magic)?;
+ if file_magic != FILE_MAGIC {
+ return Ok(None)
+ }
+ }
+
+ // Check HEADER_FORMAT_VERSION
+ {
+ debug_assert!(::std::mem::size_of_val(&HEADER_FORMAT_VERSION) == 2);
+ let mut header_format_version = [0u8; 2];
+ file.read_exact(&mut header_format_version)?;
+ let header_format_version = (header_format_version[0] as u16) |
+ ((header_format_version[1] as u16) << 8);
+
+ if header_format_version != HEADER_FORMAT_VERSION {
+ return Ok(None)
+ }
+ }
+
+ // Check RUSTC_VERSION
+ {
+ let mut rustc_version_str_len = [0u8; 1];
+ file.read_exact(&mut rustc_version_str_len)?;
+ let rustc_version_str_len = rustc_version_str_len[0] as usize;
+ let mut buffer = Vec::with_capacity(rustc_version_str_len);
+ buffer.resize(rustc_version_str_len, 0);
+ file.read_exact(&mut buffer[..])?;
+
+ if &buffer[..] != rustc_version().as_bytes() {
+ return Ok(None);
+ }
+ }
+
+ let mut data = vec![];
+ file.read_to_end(&mut data)?;
+
+ Ok(Some(data))
+}
+
+fn rustc_version() -> String {
+ if nightly_options::is_nightly_build() {
+ if let Some(val) = env::var_os("RUSTC_FORCE_INCR_COMP_ARTIFACT_HEADER") {
+ return val.to_string_lossy().into_owned()
+ }
+ }
+
+ RUSTC_VERSION.expect("Cannot use rustc without explicit version for \
+ incremental compilation")
+ .to_string()
+}
let _ = garbage_collect_session_directories(sess);
}
+pub fn delete_all_session_dir_contents(sess: &Session) -> io::Result<()> {
+ let sess_dir_iterator = sess.incr_comp_session_dir().read_dir()?;
+ for entry in sess_dir_iterator {
+ let entry = entry?;
+ safe_remove_file(&entry.path())?
+ }
+ Ok(())
+}
+
fn copy_files(target_dir: &Path,
source_dir: &Path,
print_stats_on_success: bool)
use rustc_data_structures::flock;
use rustc_serialize::Decodable;
use rustc_serialize::opaque::Decoder;
-use std::io::{ErrorKind, Read};
-use std::fs::File;
use IncrementalHashesMap;
use super::data::*;
use super::fs::*;
+use super::file_format;
pub struct HashContext<'a, 'tcx: 'a> {
pub tcx: TyCtxt<'a, 'tcx, 'tcx>,
let hashes_file_path = metadata_hash_import_path(&session_dir);
- let mut data = vec![];
- match
- File::open(&hashes_file_path)
- .and_then(|mut file| file.read_to_end(&mut data))
+ match file_format::read_file(&hashes_file_path)
{
- Ok(_) => {
+ Ok(Some(data)) => {
match self.load_from_data(cnum, &data, svh) {
Ok(()) => { }
Err(err) => {
}
}
}
+ Ok(None) => {
+ // If the file is not found, that's ok.
+ }
Err(err) => {
- match err.kind() {
- ErrorKind::NotFound => {
- // If the file is not found, that's ok.
- }
- _ => {
- self.tcx.sess.err(
- &format!("could not load dep information from `{}`: {}",
- hashes_file_path.display(), err));
- return;
- }
- }
+ self.tcx.sess.err(
+ &format!("could not load dep information from `{}`: {}",
+ hashes_file_path.display(), err));
}
}
}
use rustc_data_structures::fnv::{FnvHashSet, FnvHashMap};
use rustc_serialize::Decodable as RustcDecodable;
use rustc_serialize::opaque::Decoder;
-use std::io::Read;
-use std::fs::{self, File};
+use std::fs;
use std::path::{Path};
use IncrementalHashesMap;
use super::dirty_clean;
use super::hash::*;
use super::fs::*;
+use super::file_format;
pub type DirtyNodes = FnvHashSet<DepNode<DefPathIndex>>;
}
fn load_data(sess: &Session, path: &Path) -> Option<Vec<u8>> {
- if !path.exists() {
- return None;
- }
-
- let mut data = vec![];
- match
- File::open(path)
- .and_then(|mut file| file.read_to_end(&mut data))
- {
- Ok(_) => {
- Some(data)
+ match file_format::read_file(path) {
+ Ok(Some(data)) => return Some(data),
+ Ok(None) => {
+ // The file either didn't exist or was produced by an incompatible
+ // compiler version. Neither is an error.
}
Err(err) => {
sess.err(
&format!("could not load dep-graph from `{}`: {}",
path.display(), err));
- None
}
}
+
+ if let Err(err) = delete_all_session_dir_contents(sess) {
+ sess.err(&format!("could not clear incompatible incremental \
+ compilation session directory `{}`: {}",
+ path.display(), err));
+ }
+
+ None
}
/// Decode the dep graph and load the edges/nodes that are still clean
debug!("load_prev_metadata_hashes() - File: {}", file_path.display());
- let mut data = vec![];
- if !File::open(&file_path)
- .and_then(|mut file| file.read_to_end(&mut data)).is_ok() {
- debug!("load_prev_metadata_hashes() - Couldn't read file containing \
- hashes at `{}`", file_path.display());
- return
- }
+ let data = match file_format::read_file(&file_path) {
+ Ok(Some(data)) => data,
+ Ok(None) => {
+ debug!("load_prev_metadata_hashes() - File produced by incompatible \
+ compiler version: {}", file_path.display());
+ return
+ }
+ Err(err) => {
+ debug!("load_prev_metadata_hashes() - Error reading file `{}`: {}",
+ file_path.display(), err);
+ return
+ }
+ };
debug!("load_prev_metadata_hashes() - Decoding hashes");
- let mut decoder = Decoder::new(&mut data, 0);
+ let mut decoder = Decoder::new(&data, 0);
let _ = Svh::decode(&mut decoder).unwrap();
let serialized_hashes = SerializedMetadataHashes::decode(&mut decoder).unwrap();
debug!("load_prev_metadata_hashes() - successfully loaded {} hashes",
serialized_hashes.index_map.len());
}
+
mod preds;
mod save;
mod work_product;
+mod file_format;
pub use self::fs::finalize_session_directory;
pub use self::fs::in_incr_comp_dir;
use super::preds::*;
use super::fs::*;
use super::dirty_clean;
+use super::file_format;
pub fn save_dep_graph<'a, 'tcx>(tcx: TyCtxt<'a, 'tcx, 'tcx>,
incremental_hashes_map: &IncrementalHashesMap,
// generate the data in a memory buffer
let mut wr = Cursor::new(Vec::new());
+ file_format::write_file_header(&mut wr).unwrap();
match encode(&mut Encoder::new(&mut wr)) {
Ok(()) => {}
Err(err) => {
.zip(variants)
.map(|(variant, variant_layout)| {
// Subtract the size of the enum discriminant
- let bytes = variant_layout.min_size().bytes()
+ let bytes = variant_layout.min_size.bytes()
.saturating_sub(discr_size);
debug!("- variant `{}` is {} bytes large", variant.node.name, bytes);
let host = env::var("HOST").expect("HOST was not set");
let is_crossed = target != host;
- let optional_components = ["x86", "arm", "aarch64", "mips", "powerpc", "pnacl", "systemz"];
+ let optional_components = ["x86", "arm", "aarch64", "mips", "powerpc", "pnacl", "systemz",
+ "jsbackend"];
// FIXME: surely we don't need all these components, right? Stuff like mcjit
// or interpreter the compiler itself never uses.
LLVMInitializeSystemZTargetMC,
LLVMInitializeSystemZAsmPrinter,
LLVMInitializeSystemZAsmParser);
+ init_target!(llvm_component = "jsbackend",
+ LLVMInitializeJSBackendTargetInfo,
+ LLVMInitializeJSBackendTarget,
+ LLVMInitializeJSBackendTargetMC);
}
pub fn last_error() -> Option<String> {
__internal::with_parse_sess(|sess| {
let src = src.to_string();
let cfg = Vec::new();
- let name = "rustc-macro source code".to_string();
+ let name = "<rustc-macro source code>".to_string();
let mut parser = parse::new_parser_from_source_str(sess, cfg, name,
src);
let mut ret = TokenStream { inner: Vec::new() };
use rustc::hir::svh::Svh;
use rustc::middle::cstore::LoadedMacro;
use rustc::session::{config, Session};
-use rustc::session::config::PanicStrategy;
+use rustc_back::PanicStrategy;
use rustc::session::search_paths::PathKind;
use rustc::middle;
use rustc::middle::cstore::{CrateStore, validate_crate_name, ExternCrate};
// The logic for finding the panic runtime here is pretty much the same
// as the allocator case with the only addition that the panic strategy
// compilation mode also comes into play.
- let desired_strategy = self.sess.opts.cg.panic.clone();
+ let desired_strategy = self.sess.panic_strategy();
let mut runtime_found = false;
let mut needs_panic_runtime = attr::contains_name(&krate.attrs,
"needs_panic_runtime");
use rustc::mir::repr::Mir;
use rustc::mir::mir_map::MirMap;
use rustc::util::nodemap::{NodeSet, DefIdMap};
-use rustc::session::config::PanicStrategy;
+use rustc_back::PanicStrategy;
use std::path::PathBuf;
use syntax::ast;
use rustc::hir::map::DefKey;
use rustc::hir::svh::Svh;
use rustc::middle::cstore::ExternCrate;
-use rustc::session::config::PanicStrategy;
+use rustc_back::PanicStrategy;
use rustc_data_structures::indexed_vec::IndexVec;
use rustc::util::nodemap::{FnvHashMap, NodeMap, NodeSet, DefIdMap, FnvHashSet};
```compile_fail,E0466
#[macro_use(a_macro(another_macro))] // error: invalid import declaration
-extern crate some_crate;
+extern crate core as some_crate;
#[macro_use(i_want = "some_macros")] // error: invalid import declaration
-extern crate another_crate;
+extern crate core as another_crate;
```
This is a syntax error at the level of attribute declarations. The proper
```compile_fail,E0467
#[macro_reexport] // error: no macros listed for export
-extern crate macros_for_good;
+extern crate core as macros_for_good;
#[macro_reexport(fun_macro = "foo")] // error: not a macro identifier
-extern crate other_macros_for_good;
+extern crate core as other_macros_for_good;
```
This is a syntax error at the level of attribute declarations.
```compile_fail,E0468
mod foo {
#[macro_use(helpful_macro)] // error: must be at crate root to import
- extern crate some_crate; // macros from another crate
- helpful_macro!(...)
+ extern crate core; // macros from another crate
+ helpful_macro!(...);
}
```
let link_meta = self.link_meta;
let is_rustc_macro = tcx.sess.crate_types.borrow().contains(&CrateTypeRustcMacro);
let root = self.lazy(&CrateRoot {
- rustc_version: RUSTC_VERSION.to_string(),
+ rustc_version: rustc_version(),
name: link_meta.crate_name.clone(),
triple: tcx.sess.opts.target_triple.clone(),
hash: link_meta.crate_hash,
disambiguator: tcx.sess.local_crate_disambiguator().to_string(),
- panic_strategy: tcx.sess.opts.cg.panic.clone(),
+ panic_strategy: tcx.sess.panic_strategy(),
plugin_registrar_fn: tcx.sess.plugin_registrar_fn.get().map(|id| {
tcx.map.local_def_id(id).index
}),
//! metadata::loader or metadata::creader for all the juicy details!
use cstore::MetadataBlob;
-use schema::{METADATA_HEADER, RUSTC_VERSION};
+use schema::{METADATA_HEADER, rustc_version};
use rustc::hir::svh::Svh;
use rustc::session::Session;
}
if !self.rejected_via_version.is_empty() {
err.help(&format!("please recompile that crate using this compiler ({})",
- RUSTC_VERSION));
+ rustc_version()));
let mismatches = self.rejected_via_version.iter();
for (i, &CrateMismatch { ref path, ref got }) in mismatches.enumerate() {
err.note(&format!("crate `{}` path #{}: {} compiled by {:?}",
fn crate_matches(&mut self, metadata: &MetadataBlob, libpath: &Path) -> Option<Svh> {
let root = metadata.get_root();
- if root.rustc_version != RUSTC_VERSION {
+ let rustc_version = rustc_version();
+ if root.rustc_version != rustc_version {
info!("Rejecting via version: expected {} got {}",
- RUSTC_VERSION, root.rustc_version);
+ rustc_version, root.rustc_version);
self.rejected_via_version.push(CrateMismatch {
path: libpath.to_path_buf(),
got: root.rustc_version
use creader::{CrateLoader, Macros};
use rustc::hir::def_id::DefIndex;
-use rustc::middle::cstore::LoadedMacro;
+use rustc::middle::cstore::{LoadedMacro, LoadedMacroKind};
use rustc::session::Session;
use rustc::util::nodemap::FnvHashMap;
use rustc_back::dynamic_lib::DynamicLibrary;
use syntax::attr;
use syntax::parse::token;
use syntax_ext::deriving::custom::CustomDerive;
-use syntax_pos::Span;
+use syntax_pos::{Span, DUMMY_SP};
pub fn call_bad_macro_reexport(a: &Session, b: Span) {
span_err!(a, b, E0467, "bad macro reexport");
pub type MacroSelection = FnvHashMap<token::InternedString, Span>;
+enum ImportSelection {
+ All(Span),
+ Some(MacroSelection),
+}
+
pub fn load_macros(loader: &mut CrateLoader, extern_crate: &ast::Item, allows_macros: bool)
-> Vec<LoadedMacro> {
loader.load_crate(extern_crate, allows_macros)
extern_crate: &ast::Item,
allows_macros: bool) -> Vec<LoadedMacro> {
// Parse the attributes relating to macros.
- let mut import = Some(FnvHashMap()); // None => load all
+ let mut import = ImportSelection::Some(FnvHashMap());
let mut reexport = FnvHashMap();
for attr in &extern_crate.attrs {
"macro_use" => {
let names = attr.meta_item_list();
if names.is_none() {
- // no names => load all
- import = None;
- }
- if let (Some(sel), Some(names)) = (import.as_mut(), names) {
- for attr in names {
+ import = ImportSelection::All(attr.span);
+ } else if let ImportSelection::Some(ref mut sel) = import {
+ for attr in names.unwrap() {
if let Some(word) = attr.word() {
sel.insert(word.name().clone(), attr.span());
} else {
fn load_macros<'b>(&mut self,
vi: &ast::Item,
allows_macros: bool,
- import: Option<MacroSelection>,
+ import: ImportSelection,
reexport: MacroSelection)
-> Vec<LoadedMacro> {
- if let Some(sel) = import.as_ref() {
+ if let ImportSelection::Some(ref sel) = import {
if sel.is_empty() && reexport.is_empty() {
return Vec::new();
}
for mut def in macros.macro_rules.drain(..) {
let name = def.ident.name.as_str();
- def.use_locally = match import.as_ref() {
- None => true,
- Some(sel) => sel.contains_key(&name),
+ let import_site = match import {
+ ImportSelection::All(span) => Some(span),
+ ImportSelection::Some(ref sel) => sel.get(&name).cloned()
};
+ def.use_locally = import_site.is_some();
def.export = reexport.contains_key(&name);
def.allow_internal_unstable = attr::contains_name(&def.attrs,
"allow_internal_unstable");
debug!("load_macros: loaded: {:?}", def);
- ret.push(LoadedMacro::Def(def));
+ ret.push(LoadedMacro {
+ kind: LoadedMacroKind::Def(def),
+ import_site: import_site.unwrap_or(DUMMY_SP),
+ });
seen.insert(name);
}
// exported macros, enforced elsewhere
assert_eq!(ret.len(), 0);
- if import.is_some() {
+ if let ImportSelection::Some(..) = import {
self.sess.span_err(vi.span, "`rustc-macro` crates cannot be \
selectively imported from, must \
use `#[macro_use]`");
self.load_derive_macros(vi.span, ¯os, index, &mut ret);
}
- if let Some(sel) = import.as_ref() {
+ if let ImportSelection::Some(sel) = import {
for (name, span) in sel {
if !seen.contains(&name) {
- span_err!(self.sess, *span, E0469,
+ span_err!(self.sess, span, E0469,
"imported macro not found");
}
}
mem::transmute::<*mut u8, fn(&mut Registry)>(sym)
};
- struct MyRegistrar<'a>(&'a mut Vec<LoadedMacro>);
+ struct MyRegistrar<'a>(&'a mut Vec<LoadedMacro>, Span);
impl<'a> Registry for MyRegistrar<'a> {
fn register_custom_derive(&mut self,
trait_name: &str,
expand: fn(TokenStream) -> TokenStream) {
let derive = Rc::new(CustomDerive::new(expand));
- self.0.push(LoadedMacro::CustomDerive(trait_name.to_string(), derive));
+ self.0.push(LoadedMacro {
+ kind: LoadedMacroKind::CustomDerive(trait_name.to_string(), derive),
+ import_site: self.1,
+ });
}
}
- registrar(&mut MyRegistrar(ret));
+ registrar(&mut MyRegistrar(ret, span));
// Intentionally leak the dynamic library. We can't ever unload it
// since the library can make things that will live arbitrarily long.
use rustc::middle::lang_items;
use rustc::mir;
use rustc::ty::{self, Ty};
-use rustc::session::config::PanicStrategy;
+use rustc_back::PanicStrategy;
use rustc_serialize as serialize;
use syntax::{ast, attr};
use std::marker::PhantomData;
-#[cfg(not(test))]
-pub const RUSTC_VERSION: &'static str = concat!("rustc ", env!("CFG_VERSION"));
-
-#[cfg(test)]
-pub const RUSTC_VERSION: &'static str = "rustc 0.0.0-unit-test";
+pub fn rustc_version() -> String {
+ format!("rustc {}", option_env!("CFG_VERSION").unwrap_or("unknown version"))
+}
/// Metadata encoding version.
/// NB: increment this if you change the format of metadata such that
success.and(slice.index(idx))
}
ExprKind::SelfRef => {
- block.and(Lvalue::Arg(Arg::new(0)))
+ block.and(Lvalue::Local(Local::new(1)))
}
ExprKind::VarRef { id } => {
let index = this.var_indices[&id];
- block.and(Lvalue::Var(index))
+ block.and(Lvalue::Local(index))
}
ExprKind::StaticRef { id } => {
block.and(Lvalue::Static(id))
.map(|f| unpack!(block = this.as_operand(block, f)))
.collect();
- block.and(Rvalue::Aggregate(AggregateKind::Vec, fields))
+ block.and(Rvalue::Aggregate(AggregateKind::Array, fields))
}
ExprKind::Tuple { fields } => { // see (*) above
// first process the set of fields
}
ExprKind::Return { value } => {
block = match value {
- Some(value) => unpack!(this.into(&Lvalue::ReturnPointer, block, value)),
+ Some(value) => {
+ unpack!(this.into(&Lvalue::Local(RETURN_POINTER), block, value))
+ }
None => {
- this.cfg.push_assign_unit(block, source_info, &Lvalue::ReturnPointer);
+ this.cfg.push_assign_unit(block,
+ source_info,
+ &Lvalue::Local(RETURN_POINTER));
block
}
};
var,
subpattern: None, .. } => {
self.storage_live_for_bindings(block, &irrefutable_pat);
- let lvalue = Lvalue::Var(self.var_indices[&var]);
+ let lvalue = Lvalue::Local(self.var_indices[&var]);
return self.into(&lvalue, block, initializer);
}
_ => {}
pattern: &Pattern<'tcx>) {
match *pattern.kind {
PatternKind::Binding { var, ref subpattern, .. } => {
- let lvalue = Lvalue::Var(self.var_indices[&var]);
+ let lvalue = Lvalue::Local(self.var_indices[&var]);
let source_info = self.source_info(pattern.span);
self.cfg.push(block, Statement {
source_info: source_info,
let source_info = self.source_info(binding.span);
self.cfg.push(block, Statement {
source_info: source_info,
- kind: StatementKind::StorageLive(Lvalue::Var(var_index))
+ kind: StatementKind::StorageLive(Lvalue::Local(var_index))
});
self.cfg.push_assign(block, source_info,
- &Lvalue::Var(var_index), rvalue);
+ &Lvalue::Local(var_index), rvalue);
}
}
name: Name,
var_id: NodeId,
var_ty: Ty<'tcx>)
- -> Var
+ -> Local
{
debug!("declare_binding(var_id={:?}, name={:?}, var_ty={:?}, source_info={:?})",
var_id, name, var_ty, source_info);
- let var = self.var_decls.push(VarDecl::<'tcx> {
- source_info: source_info,
+ let var = self.local_decls.push(LocalDecl::<'tcx> {
mutability: mutability,
- name: name,
ty: var_ty.clone(),
+ name: Some(name),
+ source_info: Some(source_info),
});
let extent = self.extent_of_innermost_scope();
- self.schedule_drop(source_info.span, extent, &Lvalue::Var(var), var_ty);
+ self.schedule_drop(source_info.span, extent, &Lvalue::Local(var), var_ty);
self.var_indices.insert(var_id, var);
debug!("declare_binding: var={:?}", var);
/// NB: **No cleanup is scheduled for this temporary.** You should
/// call `schedule_drop` once the temporary is initialized.
pub fn temp(&mut self, ty: Ty<'tcx>) -> Lvalue<'tcx> {
- let temp = self.temp_decls.push(TempDecl { ty: ty });
- let lvalue = Lvalue::Temp(temp);
+ let temp = self.local_decls.push(LocalDecl::new_temp(ty));
+ let lvalue = Lvalue::Local(temp);
debug!("temp: created temp {:?} with type {:?}",
- lvalue, self.temp_decls[temp].ty);
+ lvalue, self.local_decls[temp].ty);
lvalue
}
cfg: CFG<'tcx>,
fn_span: Span,
+ arg_count: usize,
/// the current set of scopes, updated as we traverse;
/// see the `scope` module for more details
visibility_scopes: IndexVec<VisibilityScope, VisibilityScopeData>,
visibility_scope: VisibilityScope,
- var_decls: IndexVec<Var, VarDecl<'tcx>>,
- var_indices: NodeMap<Var>,
- temp_decls: IndexVec<Temp, TempDecl<'tcx>>,
+ /// Maps node ids of variable bindings to the `Local`s created for them.
+ var_indices: NodeMap<Local>,
+ local_decls: IndexVec<Local, LocalDecl<'tcx>>,
unit_temp: Option<Lvalue<'tcx>>,
/// cached block with the RESUME terminator; this is created
-> (Mir<'tcx>, ScopeAuxiliaryVec)
where A: Iterator<Item=(Ty<'gcx>, Option<&'gcx hir::Pat>)>
{
+ let arguments: Vec<_> = arguments.collect();
+
let tcx = hir.tcx();
let span = tcx.map.span(fn_id);
- let mut builder = Builder::new(hir, span);
+ let mut builder = Builder::new(hir, span, arguments.len(), return_ty);
let body_id = ast_block.id;
let call_site_extent =
tcx.region_maps.lookup_code_extent(
CodeExtentData::ParameterScope { fn_id: fn_id, body_id: body_id });
let mut block = START_BLOCK;
- let mut arg_decls = unpack!(block = builder.in_scope(call_site_extent, block, |builder| {
- let arg_decls = unpack!(block = builder.in_scope(arg_extent, block, |builder| {
- builder.args_and_body(block, return_ty, arguments, arg_extent, ast_block)
+ unpack!(block = builder.in_scope(call_site_extent, block, |builder| {
+ unpack!(block = builder.in_scope(arg_extent, block, |builder| {
+ builder.args_and_body(block, return_ty, &arguments, arg_extent, ast_block)
}));
let source_info = builder.source_info(span);
TerminatorKind::Goto { target: return_block });
builder.cfg.terminate(return_block, source_info,
TerminatorKind::Return);
- return_block.and(arg_decls)
+ return_block.unit()
}));
assert_eq!(block, builder.return_block());
+ let mut spread_arg = None;
match tcx.node_id_to_type(fn_id).sty {
ty::TyFnDef(_, _, f) if f.abi == Abi::RustCall => {
// RustCall pseudo-ABI untuples the last argument.
- if let Some(last_arg) = arg_decls.last() {
- arg_decls[last_arg].spread = true;
- }
+ spread_arg = Some(Local::new(arguments.len()));
}
_ => {}
}
}).collect()
});
- builder.finish(upvar_decls, arg_decls, return_ty)
+ let (mut mir, aux) = builder.finish(upvar_decls, return_ty);
+ mir.spread_arg = spread_arg;
+ (mir, aux)
}
pub fn construct_const<'a, 'gcx, 'tcx>(hir: Cx<'a, 'gcx, 'tcx>,
ast_expr: &'tcx hir::Expr)
-> (Mir<'tcx>, ScopeAuxiliaryVec) {
let tcx = hir.tcx();
+ let ty = tcx.expr_ty_adjusted(ast_expr);
let span = tcx.map.span(item_id);
- let mut builder = Builder::new(hir, span);
+ let mut builder = Builder::new(hir, span, 0, ty);
let extent = tcx.region_maps.temporary_scope(ast_expr.id)
.unwrap_or(ROOT_CODE_EXTENT);
let mut block = START_BLOCK;
let _ = builder.in_scope(extent, block, |builder| {
let expr = builder.hir.mirror(ast_expr);
- unpack!(block = builder.into(&Lvalue::ReturnPointer, block, expr));
+ unpack!(block = builder.into(&Lvalue::Local(RETURN_POINTER), block, expr));
let source_info = builder.source_info(span);
let return_block = builder.return_block();
return_block.unit()
});
- let ty = tcx.expr_ty_adjusted(ast_expr);
- builder.finish(vec![], IndexVec::new(), ty)
+ builder.finish(vec![], ty)
}
impl<'a, 'gcx, 'tcx> Builder<'a, 'gcx, 'tcx> {
- fn new(hir: Cx<'a, 'gcx, 'tcx>, span: Span) -> Builder<'a, 'gcx, 'tcx> {
+ fn new(hir: Cx<'a, 'gcx, 'tcx>,
+ span: Span,
+ arg_count: usize,
+ return_ty: Ty<'tcx>)
+ -> Builder<'a, 'gcx, 'tcx> {
let mut builder = Builder {
hir: hir,
cfg: CFG { basic_blocks: IndexVec::new() },
fn_span: span,
+ arg_count: arg_count,
scopes: vec![],
visibility_scopes: IndexVec::new(),
visibility_scope: ARGUMENT_VISIBILITY_SCOPE,
scope_auxiliary: IndexVec::new(),
loop_scopes: vec![],
- temp_decls: IndexVec::new(),
- var_decls: IndexVec::new(),
+ local_decls: IndexVec::from_elem_n(LocalDecl::new_return_pointer(return_ty), 1),
var_indices: NodeMap(),
unit_temp: None,
cached_resume_block: None,
fn finish(self,
upvar_decls: Vec<UpvarDecl>,
- arg_decls: IndexVec<Arg, ArgDecl<'tcx>>,
return_ty: Ty<'tcx>)
-> (Mir<'tcx>, ScopeAuxiliaryVec) {
for (index, block) in self.cfg.basic_blocks.iter().enumerate() {
self.visibility_scopes,
IndexVec::new(),
return_ty,
- self.var_decls,
- arg_decls,
- self.temp_decls,
+ self.local_decls,
+ self.arg_count,
upvar_decls,
self.fn_span
), self.scope_auxiliary)
}
- fn args_and_body<A>(&mut self,
- mut block: BasicBlock,
- return_ty: Ty<'tcx>,
- arguments: A,
- argument_extent: CodeExtent,
- ast_block: &'gcx hir::Block)
- -> BlockAnd<IndexVec<Arg, ArgDecl<'tcx>>>
- where A: Iterator<Item=(Ty<'gcx>, Option<&'gcx hir::Pat>)>
+ fn args_and_body(&mut self,
+ mut block: BasicBlock,
+ return_ty: Ty<'tcx>,
+ arguments: &[(Ty<'gcx>, Option<&'gcx hir::Pat>)],
+ argument_extent: CodeExtent,
+ ast_block: &'gcx hir::Block)
+ -> BlockAnd<()>
{
- // to start, translate the argument patterns and collect the argument types.
+ // Allocate locals for the function arguments
+ for &(ty, pattern) in arguments.iter() {
+ // If this is a simple binding pattern, give the local a nice name for debuginfo.
+ let mut name = None;
+ if let Some(pat) = pattern {
+ if let hir::PatKind::Binding(_, ref ident, _) = pat.node {
+ name = Some(ident.node);
+ }
+ }
+
+ self.local_decls.push(LocalDecl {
+ mutability: Mutability::Not,
+ ty: ty,
+ source_info: None,
+ name: name,
+ });
+ }
+
let mut scope = None;
- let arg_decls = arguments.enumerate().map(|(index, (ty, pattern))| {
- let lvalue = Lvalue::Arg(Arg::new(index));
+ // Bind the argument patterns
+ for (index, &(ty, pattern)) in arguments.iter().enumerate() {
+ // Function arguments always get the first Local indices after the return pointer
+ let lvalue = Lvalue::Local(Local::new(index + 1));
+
if let Some(pattern) = pattern {
let pattern = self.hir.irrefutable_pat(pattern);
scope = self.declare_bindings(scope, ast_block.span, &pattern);
self.schedule_drop(pattern.as_ref().map_or(ast_block.span, |pat| pat.span),
argument_extent, &lvalue, ty);
- let mut name = keywords::Invalid.name();
- if let Some(pat) = pattern {
- if let hir::PatKind::Binding(_, ref ident, _) = pat.node {
- name = ident.node;
- }
- }
-
- ArgDecl {
- ty: ty,
- spread: false,
- debug_name: name
- }
- }).collect();
+ }
// Enter the argument pattern bindings visibility scope, if it exists.
if let Some(visibility_scope) = scope {
// FIXME(#32959): temporary hack for the issue at hand
let return_is_unit = return_ty.is_nil();
// start the first basic block and translate the body
- unpack!(block = self.ast_block(&Lvalue::ReturnPointer, return_is_unit, block, ast_block));
+ unpack!(block = self.ast_block(&Lvalue::Local(RETURN_POINTER),
+ return_is_unit, block, ast_block));
- block.and(arg_decls)
+ block.unit()
}
fn get_unit_temp(&mut self) -> Lvalue<'tcx> {
For now, we keep a mapping from each `CodeExtent` to its
corresponding SEME region for later reference (see caveat in next
paragraph). This is because region scopes are tied to
-them. Eventually, when we shift to non-lexical lifetimes, three should
+them. Eventually, when we shift to non-lexical lifetimes, there should
be no need to remember this mapping.
There is one additional wrinkle, actually, that I wanted to hide from
early exit occurs, the method `exit_scope` is called. It is given the
current point in execution where the early exit occurs, as well as the
scope you want to branch to (note that all early exits from to some
-other enclosing scope). `exit_scope` will record thid exit point and
+other enclosing scope). `exit_scope` will record this exit point and
also add all drops.
Panics are handled in a similar fashion, except that a panic always
self.diverge_cleanup();
let scope = self.scopes.pop().unwrap();
assert_eq!(scope.extent, extent);
- unpack!(block = build_scope_drops(&mut self.cfg, &scope, &self.scopes, block));
+ unpack!(block = build_scope_drops(&mut self.cfg,
+ &scope,
+ &self.scopes,
+ block,
+ self.arg_count));
self.scope_auxiliary[scope.id]
.postdoms
.push(self.cfg.current_location(block));
scope.cached_exits.insert((target, extent), b);
b
};
- unpack!(block = build_scope_drops(&mut self.cfg, scope, rest, block));
+ unpack!(block = build_scope_drops(&mut self.cfg,
+ scope,
+ rest,
+ block,
+ self.arg_count));
if let Some(ref free_data) = scope.free {
let next = self.cfg.start_new_block();
let free = build_free(self.hir.tcx(), &tmp, free_data, next);
} else {
// Only temps and vars need their storage dead.
match *lvalue {
- Lvalue::Temp(_) | Lvalue::Var(_) => DropKind::Storage,
+ Lvalue::Local(index) if index.index() > self.arg_count => DropKind::Storage,
_ => return
}
};
fn build_scope_drops<'tcx>(cfg: &mut CFG<'tcx>,
scope: &Scope<'tcx>,
earlier_scopes: &[Scope<'tcx>],
- mut block: BasicBlock)
+ mut block: BasicBlock,
+ arg_count: usize)
-> BlockAnd<()> {
let mut iter = scope.drops.iter().rev().peekable();
while let Some(drop_data) = iter.next() {
DropKind::Storage => {
// Only temps and vars need their storage dead.
match drop_data.location {
- Lvalue::Temp(_) | Lvalue::Var(_) => {}
+ Lvalue::Local(index) if index.index() > arg_count => {}
_ => continue
}
use rustc::mir::repr::{Local, Location, Lvalue, Mir};
use rustc::mir::visit::{LvalueContext, MutVisitor, Visitor};
-use rustc_data_structures::indexed_vec::{Idx, IndexVec};
+use rustc_data_structures::indexed_vec::IndexVec;
use std::marker::PhantomData;
use std::mem;
pub struct DefUseAnalysis<'tcx> {
info: IndexVec<Local, Info<'tcx>>,
- mir_summary: MirSummary,
}
#[derive(Clone)]
impl<'tcx> DefUseAnalysis<'tcx> {
pub fn new(mir: &Mir<'tcx>) -> DefUseAnalysis<'tcx> {
DefUseAnalysis {
- info: IndexVec::from_elem_n(Info::new(), mir.count_locals()),
- mir_summary: MirSummary::new(mir),
+ info: IndexVec::from_elem_n(Info::new(), mir.local_decls.len()),
}
}
pub fn analyze(&mut self, mir: &Mir<'tcx>) {
let mut finder = DefUseFinder {
info: mem::replace(&mut self.info, IndexVec::new()),
- mir_summary: self.mir_summary,
};
finder.visit_mir(mir);
self.info = finder.info
for lvalue_use in &self.info[local].defs_and_uses {
MutateUseVisitor::new(local,
&mut callback,
- self.mir_summary,
mir).visit_location(mir, lvalue_use.location)
}
}
struct DefUseFinder<'tcx> {
info: IndexVec<Local, Info<'tcx>>,
- mir_summary: MirSummary,
}
impl<'tcx> DefUseFinder<'tcx> {
fn lvalue_mut_info(&mut self, lvalue: &Lvalue<'tcx>) -> Option<&mut Info<'tcx>> {
let info = &mut self.info;
- self.mir_summary.local_index(lvalue).map(move |local| &mut info[local])
+
+ if let Lvalue::Local(local) = *lvalue {
+ Some(&mut info[local])
+ } else {
+ None
+ }
}
}
struct MutateUseVisitor<'tcx, F> {
query: Local,
callback: F,
- mir_summary: MirSummary,
phantom: PhantomData<&'tcx ()>,
}
impl<'tcx, F> MutateUseVisitor<'tcx, F> {
- fn new(query: Local, callback: F, mir_summary: MirSummary, _: &Mir<'tcx>)
+ fn new(query: Local, callback: F, _: &Mir<'tcx>)
-> MutateUseVisitor<'tcx, F>
where F: for<'a> FnMut(&'a mut Lvalue<'tcx>, LvalueContext<'tcx>, Location) {
MutateUseVisitor {
query: query,
callback: callback,
- mir_summary: mir_summary,
phantom: PhantomData,
}
}
lvalue: &mut Lvalue<'tcx>,
context: LvalueContext<'tcx>,
location: Location) {
- if self.mir_summary.local_index(lvalue) == Some(self.query) {
- (self.callback)(lvalue, context, location)
- }
- self.super_lvalue(lvalue, context, location)
- }
-}
-
-/// A small structure that enables various metadata of the MIR to be queried
-/// without a reference to the MIR itself.
-#[derive(Clone, Copy)]
-pub struct MirSummary {
- arg_count: usize,
- var_count: usize,
- temp_count: usize,
-}
-
-impl MirSummary {
- pub fn new(mir: &Mir) -> MirSummary {
- MirSummary {
- arg_count: mir.arg_decls.len(),
- var_count: mir.var_decls.len(),
- temp_count: mir.temp_decls.len(),
- }
- }
-
- pub fn local_index<'tcx>(&self, lvalue: &Lvalue<'tcx>) -> Option<Local> {
- match *lvalue {
- Lvalue::Arg(arg) => Some(Local::new(arg.index())),
- Lvalue::Var(var) => Some(Local::new(var.index() + self.arg_count)),
- Lvalue::Temp(temp) => {
- Some(Local::new(temp.index() + self.arg_count + self.var_count))
+ if let Lvalue::Local(local) = *lvalue {
+ if local == self.query {
+ (self.callback)(lvalue, context, location)
}
- Lvalue::ReturnPointer => {
- Some(Local::new(self.arg_count + self.var_count + self.temp_count))
- }
- _ => None,
}
+ self.super_lvalue(lvalue, context, location)
}
}
-
write!(w, " label=<fn {}(", dot::escape_html(&tcx.node_path_str(nid)))?;
// fn argument types.
- for (i, arg) in mir.arg_decls.iter().enumerate() {
+ for (i, arg) in mir.args_iter().enumerate() {
if i > 0 {
write!(w, ", ")?;
}
- write!(w, "{:?}: {}", Lvalue::Arg(Arg::new(i)), escape(&arg.ty))?;
+ write!(w, "{:?}: {}", Lvalue::Local(arg), escape(&mir.local_decls[arg].ty))?;
}
write!(w, ") -> {}", escape(mir.return_ty))?;
write!(w, r#"<br align="left"/>"#)?;
- // User variable types (including the user's name in a comment).
- for (i, var) in mir.var_decls.iter().enumerate() {
+ for local in mir.vars_and_temps_iter() {
+ let decl = &mir.local_decls[local];
+
write!(w, "let ")?;
- if var.mutability == Mutability::Mut {
+ if decl.mutability == Mutability::Mut {
write!(w, "mut ")?;
}
- write!(w, r#"{:?}: {}; // {}<br align="left"/>"#,
- Lvalue::Var(Var::new(i)), escape(&var.ty), var.name)?;
- }
- // Compiler-introduced temporary types.
- for (i, temp) in mir.temp_decls.iter().enumerate() {
- write!(w, r#"let mut {:?}: {};<br align="left"/>"#,
- Lvalue::Temp(Temp::new(i)), escape(&temp.ty))?;
+ if let Some(name) = decl.name {
+ write!(w, r#"{:?}: {}; // {}<br align="left"/>"#,
+ Lvalue::Local(local), escape(&decl.ty), name)?;
+ } else {
+ write!(w, r#"let mut {:?}: {};<br align="left"/>"#,
+ Lvalue::Local(local), escape(&decl.ty))?;
+ }
}
writeln!(w, ">;")
value: value.to_ref(),
value_extents: cx.tcx.region_maps.node_extent(value.id)
},
- hir::ExprVec(ref fields) =>
+ hir::ExprArray(ref fields) =>
ExprKind::Vec { fields: fields.to_ref() },
hir::ExprTup(ref fields) =>
ExprKind::Tuple { fields: fields.to_ref() },
PatternKind::Deref { subpattern: self.to_pattern(subpattern) }
}
- PatKind::Vec(ref prefix, ref slice, ref suffix) => {
+ PatKind::Slice(ref prefix, ref slice, ref suffix) => {
let ty = self.cx.tcx.node_id_to_type(pat.id);
match ty.sty {
ty::TyRef(_, mt) =>
// Array lengths, i.e. [T; constant].
fn visit_ty(&mut self, ty: &'tcx hir::Ty) {
- if let hir::TyFixedLengthVec(_, ref length) = ty.node {
+ if let hir::TyArray(_, ref length) = ty.node {
self.build_const_integer(length);
}
intravisit::walk_ty(self, ty);
format!("scope {} at {}", scope.index(), tcx.sess.codemap().span_to_string(span))
}
+/// Prints user-defined variables in a scope tree.
+///
+/// Returns the total number of variables printed.
fn write_scope_tree(tcx: TyCtxt,
mir: &Mir,
scope_tree: &FnvHashMap<VisibilityScope, Vec<VisibilityScope>>,
writeln!(w, "{0:1$}scope {2} {{", "", indent, child.index())?;
// User variable types (including the user's name in a comment).
- for (id, var) in mir.var_decls.iter_enumerated() {
- // Skip if not declared in this scope.
- if var.source_info.scope != child {
+ for local in mir.vars_iter() {
+ let var = &mir.local_decls[local];
+ let (name, source_info) = if var.source_info.unwrap().scope == child {
+ (var.name.unwrap(), var.source_info.unwrap())
+ } else {
+ // Not a variable or not declared in this scope.
continue;
- }
+ };
let mut_str = if var.mutability == Mutability::Mut {
"mut "
INDENT,
indent,
mut_str,
- id,
+ local,
var.ty);
writeln!(w, "{0:1$} // \"{2}\" in {3}",
indented_var,
ALIGN,
- var.name,
- comment(tcx, var.source_info))?;
+ name,
+ comment(tcx, source_info))?;
}
write_scope_tree(tcx, mir, scope_tree, w, child, depth + 1)?;
}
}
+ // Print return pointer
+ let indented_retptr = format!("{}let mut {:?}: {};",
+ INDENT,
+ RETURN_POINTER,
+ mir.return_ty);
+ writeln!(w, "{0:1$} // return pointer",
+ indented_retptr,
+ ALIGN)?;
+
write_scope_tree(tcx, mir, &scope_tree, w, ARGUMENT_VISIBILITY_SCOPE, 1)?;
- write_mir_decls(mir, w)
+ write_temp_decls(mir, w)?;
+
+ // Add an empty line before the first block is printed.
+ writeln!(w, "")?;
+
+ Ok(())
}
fn write_mir_sig(tcx: TyCtxt, src: MirSource, mir: &Mir, w: &mut Write)
write!(w, "(")?;
// fn argument types.
- for (i, arg) in mir.arg_decls.iter_enumerated() {
- if i.index() != 0 {
+ for (i, arg) in mir.args_iter().enumerate() {
+ if i != 0 {
write!(w, ", ")?;
}
- write!(w, "{:?}: {}", Lvalue::Arg(i), arg.ty)?;
+ write!(w, "{:?}: {}", Lvalue::Local(arg), mir.local_decls[arg].ty)?;
}
write!(w, ") -> {}", mir.return_ty)
} else {
- assert!(mir.arg_decls.is_empty());
+ assert_eq!(mir.arg_count, 0);
write!(w, ": {} =", mir.return_ty)
}
}
-fn write_mir_decls(mir: &Mir, w: &mut Write) -> io::Result<()> {
+fn write_temp_decls(mir: &Mir, w: &mut Write) -> io::Result<()> {
// Compiler-introduced temporary types.
- for (id, temp) in mir.temp_decls.iter_enumerated() {
- writeln!(w, "{}let mut {:?}: {};", INDENT, id, temp.ty)?;
- }
-
- // Wrote any declaration? Add an empty line before the first block is printed.
- if !mir.var_decls.is_empty() || !mir.temp_decls.is_empty() {
- writeln!(w, "")?;
+ for temp in mir.temps_iter() {
+ writeln!(w, "{}let mut {:?}: {};", INDENT, temp, mir.local_decls[temp].ty)?;
}
Ok(())
//! (non-mutating) use of `SRC`. These restrictions are conservative and may be relaxed in the
//! future.
-use def_use::{DefUseAnalysis, MirSummary};
+use def_use::DefUseAnalysis;
use rustc::mir::repr::{Constant, Local, Location, Lvalue, Mir, Operand, Rvalue, StatementKind};
use rustc::mir::transform::{MirPass, MirSource, Pass};
use rustc::mir::visit::MutVisitor;
use rustc::ty::TyCtxt;
-use rustc_data_structures::indexed_vec::Idx;
use transform::qualify_consts;
pub struct CopyPropagation;
def_use_analysis.analyze(mir);
let mut changed = false;
- for dest_local_index in 0..mir.count_locals() {
- let dest_local = Local::new(dest_local_index);
- debug!("Considering destination local: {}", mir.format_local(dest_local));
+ for dest_local in mir.local_decls.indices() {
+ debug!("Considering destination local: {:?}", dest_local);
let action;
let location;
let dest_use_info = def_use_analysis.local_info(dest_local);
let dest_def_count = dest_use_info.def_count_not_including_drop();
if dest_def_count == 0 {
- debug!(" Can't copy-propagate local: dest {} undefined",
- mir.format_local(dest_local));
+ debug!(" Can't copy-propagate local: dest {:?} undefined",
+ dest_local);
continue
}
if dest_def_count > 1 {
- debug!(" Can't copy-propagate local: dest {} defined {} times",
- mir.format_local(dest_local),
+ debug!(" Can't copy-propagate local: dest {:?} defined {} times",
+ dest_local,
dest_use_info.def_count());
continue
}
if dest_use_info.use_count() == 0 {
- debug!(" Can't copy-propagate local: dest {} unused",
- mir.format_local(dest_local));
+ debug!(" Can't copy-propagate local: dest {:?} unused",
+ dest_local);
continue
}
let dest_lvalue_def = dest_use_info.defs_and_uses.iter().filter(|lvalue_def| {
// That use of the source must be an assignment.
match statement.kind {
- StatementKind::Assign(ref dest_lvalue, Rvalue::Use(ref operand)) if
- Some(dest_local) == mir.local_index(dest_lvalue) => {
+ StatementKind::Assign(Lvalue::Local(local), Rvalue::Use(ref operand)) if
+ local == dest_local => {
let maybe_action = match *operand {
Operand::Consume(ref src_lvalue) => {
- Action::local_copy(mir, &def_use_analysis, src_lvalue)
+ Action::local_copy(&def_use_analysis, src_lvalue)
}
Operand::Constant(ref src_constant) => {
Action::constant(src_constant)
}
impl<'tcx> Action<'tcx> {
- fn local_copy(mir: &Mir<'tcx>, def_use_analysis: &DefUseAnalysis, src_lvalue: &Lvalue<'tcx>)
+ fn local_copy(def_use_analysis: &DefUseAnalysis, src_lvalue: &Lvalue<'tcx>)
-> Option<Action<'tcx>> {
// The source must be a local.
- let src_local = match mir.local_index(src_lvalue) {
- Some(src_local) => src_local,
- None => {
- debug!(" Can't copy-propagate local: source is not a local");
- return None
- }
+ let src_local = if let Lvalue::Local(local) = *src_lvalue {
+ local
+ } else {
+ debug!(" Can't copy-propagate local: source is not a local");
+ return None;
};
// We're trying to copy propagate a local.
// First, remove all markers.
//
// FIXME(pcwalton): Don't do this. Merge live ranges instead.
- debug!(" Replacing all uses of {} with {} (local)",
- mir.format_local(dest_local),
- mir.format_local(src_local));
+ debug!(" Replacing all uses of {:?} with {:?} (local)",
+ dest_local,
+ src_local);
for lvalue_use in &def_use_analysis.local_info(dest_local).defs_and_uses {
if lvalue_use.context.is_storage_marker() {
mir.make_statement_nop(lvalue_use.location)
}
// Replace all uses of the destination local with the source local.
- let src_lvalue = Lvalue::from_local(mir, src_local);
+ let src_lvalue = Lvalue::Local(src_local);
def_use_analysis.replace_all_defs_and_uses_with(dest_local, mir, src_lvalue);
// Finally, zap the now-useless assignment instruction.
// First, remove all markers.
//
// FIXME(pcwalton): Don't do this. Merge live ranges instead.
- debug!(" Replacing all uses of {} with {:?} (constant)",
- mir.format_local(dest_local),
+ debug!(" Replacing all uses of {:?} with {:?} (constant)",
+ dest_local,
src_constant);
let dest_local_info = def_use_analysis.local_info(dest_local);
for lvalue_use in &dest_local_info.defs_and_uses {
}
// Replace all uses of the destination local with the constant.
- let mut visitor = ConstantPropagationVisitor::new(MirSummary::new(mir),
- dest_local,
+ let mut visitor = ConstantPropagationVisitor::new(dest_local,
src_constant);
for dest_lvalue_use in &dest_local_info.defs_and_uses {
visitor.visit_location(mir, dest_lvalue_use.location)
struct ConstantPropagationVisitor<'tcx> {
dest_local: Local,
constant: Constant<'tcx>,
- mir_summary: MirSummary,
uses_replaced: usize,
}
impl<'tcx> ConstantPropagationVisitor<'tcx> {
- fn new(mir_summary: MirSummary, dest_local: Local, constant: Constant<'tcx>)
+ fn new(dest_local: Local, constant: Constant<'tcx>)
-> ConstantPropagationVisitor<'tcx> {
ConstantPropagationVisitor {
dest_local: dest_local,
constant: constant,
- mir_summary: mir_summary,
uses_replaced: 0,
}
}
self.super_operand(operand, location);
match *operand {
- Operand::Consume(ref lvalue) => {
- if self.mir_summary.local_index(lvalue) != Some(self.dest_local) {
- return
- }
- }
- Operand::Constant(_) => return,
+ Operand::Consume(Lvalue::Local(local)) if local == self.dest_local => {}
+ _ => return,
}
*operand = Operand::Constant(self.constant.clone());
self.uses_replaced += 1
}
}
-
//! Performs various peephole optimizations.
-use rustc::mir::repr::{Location, Lvalue, Mir, Operand, ProjectionElem, Rvalue};
+use rustc::mir::repr::{Location, Lvalue, Mir, Operand, ProjectionElem, Rvalue, Local};
use rustc::mir::transform::{MirPass, MirSource, Pass};
use rustc::mir::visit::{MutVisitor, Visitor};
use rustc::ty::TyCtxt;
use rustc::util::nodemap::FnvHashSet;
+use rustc_data_structures::indexed_vec::Idx;
use std::mem;
pub struct InstCombine {
debug!("Replacing `&*`: {:?}", rvalue);
let new_lvalue = match *rvalue {
Rvalue::Ref(_, _, Lvalue::Projection(ref mut projection)) => {
- mem::replace(&mut projection.base, Lvalue::ReturnPointer)
+ // Replace with dummy
+ mem::replace(&mut projection.base, Lvalue::Local(Local::new(0)))
}
_ => bug!("Detected `&*` but didn't find `&*`!"),
};
struct OptimizationList {
and_stars: FnvHashSet<Location>,
}
-
use rustc_data_structures::indexed_vec::{IndexVec, Idx};
+use std::iter;
use std::mem;
use std::usize;
ShuffleIndices(BasicBlock)
}
-struct TempCollector {
- temps: IndexVec<Temp, TempState>,
- span: Span
+struct TempCollector<'tcx> {
+ temps: IndexVec<Local, TempState>,
+ span: Span,
+ mir: &'tcx Mir<'tcx>,
}
-impl<'tcx> Visitor<'tcx> for TempCollector {
- fn visit_lvalue(&mut self, lvalue: &Lvalue<'tcx>, context: LvalueContext, location: Location) {
+impl<'tcx> Visitor<'tcx> for TempCollector<'tcx> {
+ fn visit_lvalue(&mut self,
+ lvalue: &Lvalue<'tcx>,
+ context: LvalueContext<'tcx>,
+ location: Location) {
self.super_lvalue(lvalue, context, location);
- if let Lvalue::Temp(index) = *lvalue {
+ if let Lvalue::Local(index) = *lvalue {
+ // We're only interested in temporaries
+ if self.mir.local_kind(index) != LocalKind::Temp {
+ return;
+ }
+
// Ignore drops, if the temp gets promoted,
// then it's constant and thus drop is noop.
// Storage live ranges are also irrelevant.
}
}
-pub fn collect_temps(mir: &Mir, rpo: &mut ReversePostorder) -> IndexVec<Temp, TempState> {
+pub fn collect_temps(mir: &Mir, rpo: &mut ReversePostorder) -> IndexVec<Local, TempState> {
let mut collector = TempCollector {
- temps: IndexVec::from_elem(TempState::Undefined, &mir.temp_decls),
- span: mir.span
+ temps: IndexVec::from_elem(TempState::Undefined, &mir.local_decls),
+ span: mir.span,
+ mir: mir,
};
for (bb, data) in rpo {
collector.visit_basic_block_data(bb, data);
struct Promoter<'a, 'tcx: 'a> {
source: &'a mut Mir<'tcx>,
promoted: Mir<'tcx>,
- temps: &'a mut IndexVec<Temp, TempState>,
+ temps: &'a mut IndexVec<Local, TempState>,
/// If true, all nested temps are also kept in the
/// source MIR, not moved to the promoted MIR.
})
}
- fn assign(&mut self, dest: Lvalue<'tcx>, rvalue: Rvalue<'tcx>, span: Span) {
+ fn assign(&mut self, dest: Local, rvalue: Rvalue<'tcx>, span: Span) {
let last = self.promoted.basic_blocks().last().unwrap();
let data = &mut self.promoted[last];
data.statements.push(Statement {
span: span,
scope: ARGUMENT_VISIBILITY_SCOPE
},
- kind: StatementKind::Assign(dest, rvalue)
+ kind: StatementKind::Assign(Lvalue::Local(dest), rvalue)
});
}
/// Copy the initialization of this temp to the
/// promoted MIR, recursing through temps.
- fn promote_temp(&mut self, temp: Temp) -> Temp {
+ fn promote_temp(&mut self, temp: Local) -> Local {
let old_keep_original = self.keep_original;
let (bb, stmt_idx) = match self.temps[temp] {
TempState::Defined {
});
}
- let new_temp = self.promoted.temp_decls.push(TempDecl {
- ty: self.source.temp_decls[temp].ty
- });
+ let new_temp = self.promoted.local_decls.push(
+ LocalDecl::new_temp(self.source.local_decls[temp].ty));
// Inject the Rvalue or Call into the promoted MIR.
if stmt_idx < no_stmts {
- self.assign(Lvalue::Temp(new_temp), rvalue.unwrap(), source_info.span);
+ self.assign(new_temp, rvalue.unwrap(), source_info.span);
} else {
let last = self.promoted.basic_blocks().last().unwrap();
let new_target = self.new_block();
let mut call = call.unwrap();
match call {
TerminatorKind::Call { ref mut destination, ..} => {
- *destination = Some((Lvalue::Temp(new_temp), new_target));
+ *destination = Some((Lvalue::Local(new_temp), new_target));
}
_ => bug!()
}
}
}
};
- self.visit_rvalue(&mut rvalue, Location{
+ self.visit_rvalue(&mut rvalue, Location {
block: BasicBlock::new(0),
statement_index: usize::MAX
});
- self.assign(Lvalue::ReturnPointer, rvalue, span);
+
+ self.assign(RETURN_POINTER, rvalue, span);
self.source.promoted.push(self.promoted);
}
}
lvalue: &mut Lvalue<'tcx>,
context: LvalueContext<'tcx>,
location: Location) {
- if let Lvalue::Temp(ref mut temp) = *lvalue {
- *temp = self.promote_temp(*temp);
+ if let Lvalue::Local(ref mut temp) = *lvalue {
+ if self.source.local_kind(*temp) == LocalKind::Temp {
+ *temp = self.promote_temp(*temp);
+ }
}
self.super_lvalue(lvalue, context, location);
}
pub fn promote_candidates<'a, 'tcx>(mir: &mut Mir<'tcx>,
tcx: TyCtxt<'a, 'tcx, 'tcx>,
- mut temps: IndexVec<Temp, TempState>,
+ mut temps: IndexVec<Local, TempState>,
candidates: Vec<Candidate>) {
// Visit candidates in reverse, in case they're nested.
for candidate in candidates.into_iter().rev() {
"expected assignment to promote");
}
};
- if let Lvalue::Temp(index) = *dest {
+ if let Lvalue::Local(index) = *dest {
if temps[index] == TempState::PromotedOut {
// Already promoted.
continue;
}
};
+ // Declare return pointer local
+ let initial_locals = iter::once(LocalDecl::new_return_pointer(ty)).collect();
+
let mut promoter = Promoter {
- source: mir,
promoted: Mir::new(
IndexVec::new(),
Some(VisibilityScopeData {
}).into_iter().collect(),
IndexVec::new(),
ty,
- IndexVec::new(),
- IndexVec::new(),
- IndexVec::new(),
+ initial_locals,
+ 0,
vec![],
span
),
+ source: mir,
temps: &mut temps,
keep_original: false
};
}
// Eliminate assignments to, and drops of promoted temps.
- let promoted = |index: Temp| temps[index] == TempState::PromotedOut;
+ let promoted = |index: Local| temps[index] == TempState::PromotedOut;
for block in mir.basic_blocks_mut() {
block.statements.retain(|statement| {
match statement.kind {
- StatementKind::Assign(Lvalue::Temp(index), _) |
- StatementKind::StorageLive(Lvalue::Temp(index)) |
- StatementKind::StorageDead(Lvalue::Temp(index)) => {
+ StatementKind::Assign(Lvalue::Local(index), _) |
+ StatementKind::StorageLive(Lvalue::Local(index)) |
+ StatementKind::StorageDead(Lvalue::Local(index)) => {
!promoted(index)
}
_ => true
});
let terminator = block.terminator_mut();
match terminator.kind {
- TerminatorKind::Drop { location: Lvalue::Temp(index), target, .. } => {
+ TerminatorKind::Drop { location: Lvalue::Local(index), target, .. } => {
if promoted(index) {
terminator.kind = TerminatorKind::Goto {
target: target
param_env: ty::ParameterEnvironment<'tcx>,
qualif_map: &'a mut DefIdMap<Qualif>,
mir_map: Option<&'a MirMap<'tcx>>,
- temp_qualif: IndexVec<Temp, Option<Qualif>>,
+ temp_qualif: IndexVec<Local, Option<Qualif>>,
return_qualif: Option<Qualif>,
qualif: Qualif,
const_fn_arg_vars: BitVector,
- temp_promotion_state: IndexVec<Temp, TempState>,
+ temp_promotion_state: IndexVec<Local, TempState>,
promotion_candidates: Vec<Candidate>
}
param_env: param_env,
qualif_map: qualif_map,
mir_map: mir_map,
- temp_qualif: IndexVec::from_elem(None, &mir.temp_decls),
+ temp_qualif: IndexVec::from_elem(None, &mir.local_decls),
return_qualif: None,
qualif: Qualif::empty(),
- const_fn_arg_vars: BitVector::new(mir.var_decls.len()),
+ const_fn_arg_vars: BitVector::new(mir.local_decls.len()),
temp_promotion_state: temps,
promotion_candidates: vec![]
}
// Only handle promotable temps in non-const functions.
if self.mode == Mode::Fn {
- if let Lvalue::Temp(index) = *dest {
- if self.temp_promotion_state[index].is_promotable() {
+ if let Lvalue::Local(index) = *dest {
+ if self.mir.local_kind(index) == LocalKind::Temp
+ && self.temp_promotion_state[index].is_promotable() {
+ debug!("store to promotable temp {:?}", index);
store(&mut self.temp_qualif[index]);
}
}
}
match *dest {
- Lvalue::Temp(index) => store(&mut self.temp_qualif[index]),
- Lvalue::ReturnPointer => store(&mut self.return_qualif),
+ Lvalue::Local(index) if self.mir.local_kind(index) == LocalKind::Temp => {
+ debug!("store to temp {:?}", index);
+ store(&mut self.temp_qualif[index])
+ }
+ Lvalue::Local(index) if self.mir.local_kind(index) == LocalKind::ReturnPointer => {
+ debug!("store to return pointer {:?}", index);
+ store(&mut self.return_qualif)
+ }
Lvalue::Projection(box Projection {
- base: Lvalue::Temp(index),
+ base: Lvalue::Local(index),
elem: ProjectionElem::Deref
- }) if self.mir.temp_decls[index].ty.is_unique()
+ }) if self.mir.local_kind(index) == LocalKind::Temp
+ && self.mir.local_decls[index].ty.is_unique()
&& self.temp_qualif[index].map_or(false, |qualif| {
qualif.intersects(Qualif::NOT_CONST)
}) => {
/// Qualify a whole const, static initializer or const fn.
fn qualify_const(&mut self) -> Qualif {
+ debug!("qualifying {} {}", self.mode, self.tcx.item_path_str(self.def_id));
+
let mir = self.mir;
let mut seen_blocks = BitVector::new(mir.basic_blocks().len());
TerminatorKind::Return => {
// Check for unused values. This usually means
// there are extra statements in the AST.
- for temp in mir.temp_decls.indices() {
+ for temp in mir.temps_iter() {
if self.temp_qualif[temp].is_none() {
continue;
}
// Make sure there are no extra unassigned variables.
self.qualif = Qualif::NOT_CONST;
- for index in 0..mir.var_decls.len() {
- if !self.const_fn_arg_vars.contains(index) {
- self.assign(&Lvalue::Var(Var::new(index)), Location {
+ for index in mir.vars_iter() {
+ if !self.const_fn_arg_vars.contains(index.index()) {
+ debug!("unassigned variable {:?}", index);
+ self.assign(&Lvalue::Local(index), Location {
block: bb,
statement_index: usize::MAX,
});
context: LvalueContext<'tcx>,
location: Location) {
match *lvalue {
- Lvalue::Arg(_) => {
- self.add(Qualif::FN_ARGUMENT);
- }
- Lvalue::Var(_) => {
- self.add(Qualif::NOT_CONST);
- }
- Lvalue::Temp(index) => {
- if !self.temp_promotion_state[index].is_promotable() {
- self.add(Qualif::NOT_PROMOTABLE);
+ Lvalue::Local(local) => match self.mir.local_kind(local) {
+ LocalKind::ReturnPointer => {
+ self.not_const();
+ }
+ LocalKind::Arg => {
+ self.add(Qualif::FN_ARGUMENT);
+ }
+ LocalKind::Var => {
+ self.add(Qualif::NOT_CONST);
}
+ LocalKind::Temp => {
+ if !self.temp_promotion_state[local].is_promotable() {
+ self.add(Qualif::NOT_PROMOTABLE);
+ }
- if let Some(qualif) = self.temp_qualif[index] {
- self.add(qualif);
- } else {
- self.not_const();
+ if let Some(qualif) = self.temp_qualif[local] {
+ self.add(qualif);
+ } else {
+ self.not_const();
+ }
}
- }
+ },
Lvalue::Static(_) => {
self.add(Qualif::STATIC);
if self.mode == Mode::Const || self.mode == Mode::ConstFn {
a constant instead", self.mode);
}
}
- Lvalue::ReturnPointer => {
- self.not_const();
- }
Lvalue::Projection(ref proj) => {
self.nest(|this| {
this.super_lvalue(lvalue, context, location);
if self.mode == Mode::Fn || self.mode == Mode::ConstFn {
if !self.qualif.intersects(Qualif::NEVER_PROMOTE) {
// We can only promote direct borrows of temps.
- if let Lvalue::Temp(_) = *lvalue {
- self.promotion_candidates.push(candidate);
+ if let Lvalue::Local(local) = *lvalue {
+ if self.mir.local_kind(local) == LocalKind::Temp {
+ self.promotion_candidates.push(candidate);
+ }
}
}
}
self.visit_rvalue(rvalue, location);
// Check the allowed const fn argument forms.
- if let (Mode::ConstFn, &Lvalue::Var(index)) = (self.mode, dest) {
- if self.const_fn_arg_vars.insert(index.index()) {
+ if let (Mode::ConstFn, &Lvalue::Local(index)) = (self.mode, dest) {
+ if self.mir.local_kind(index) == LocalKind::Var &&
+ self.const_fn_arg_vars.insert(index.index()) {
+
// Direct use of an argument is permitted.
- if let Rvalue::Use(Operand::Consume(Lvalue::Arg(_))) = *rvalue {
- return;
+ if let Rvalue::Use(Operand::Consume(Lvalue::Local(local))) = *rvalue {
+ if self.mir.local_kind(local) == LocalKind::Arg {
+ return;
+ }
}
// Avoid a generic error for other uses of arguments.
if self.qualif.intersects(Qualif::FN_ARGUMENT) {
- let decl = &self.mir.var_decls[index];
- span_err!(self.tcx.sess, decl.source_info.span, E0022,
+ let decl = &self.mir.local_decls[index];
+ span_err!(self.tcx.sess, decl.source_info.unwrap().span, E0022,
"arguments of constant functions can only \
be immutable by-value bindings");
return;
fn visit_mir(&mut self, mir: &Mir<'tcx>) {
self.sanitize_type(&"return type", mir.return_ty);
- for var_decl in &mir.var_decls {
- self.sanitize_type(var_decl, var_decl.ty);
- }
- for (n, arg_decl) in mir.arg_decls.iter().enumerate() {
- self.sanitize_type(&(n, arg_decl), arg_decl.ty);
- }
- for (n, tmp_decl) in mir.temp_decls.iter().enumerate() {
- self.sanitize_type(&(n, tmp_decl), tmp_decl.ty);
+ for local_decl in &mir.local_decls {
+ self.sanitize_type(local_decl, local_decl.ty);
}
if self.errors_reported {
return;
fn sanitize_lvalue(&mut self, lvalue: &Lvalue<'tcx>, location: Location) -> LvalueTy<'tcx> {
debug!("sanitize_lvalue: {:?}", lvalue);
match *lvalue {
- Lvalue::Var(index) => LvalueTy::Ty { ty: self.mir.var_decls[index].ty },
- Lvalue::Temp(index) => LvalueTy::Ty { ty: self.mir.temp_decls[index].ty },
- Lvalue::Arg(index) => LvalueTy::Ty { ty: self.mir.arg_decls[index].ty },
+ Lvalue::Local(index) => LvalueTy::Ty { ty: self.mir.local_decls[index].ty },
Lvalue::Static(def_id) =>
LvalueTy::Ty { ty: self.tcx().lookup_item_type(def_id).ty },
- Lvalue::ReturnPointer => {
- LvalueTy::Ty { ty: self.mir.return_ty }
- }
Lvalue::Projection(ref proj) => {
let base_ty = self.sanitize_lvalue(&proj.base, location);
if let LvalueTy::Ty { ty } = base_ty {
StatementKind::StorageLive(ref lv) |
StatementKind::StorageDead(ref lv) => {
match *lv {
- Lvalue::Temp(_) | Lvalue::Var(_) => {}
+ Lvalue::Local(_) => {}
_ => {
- span_mirbug!(self, stmt, "bad lvalue: expected temp or var");
+ span_mirbug!(self, stmt, "bad lvalue: expected local");
}
}
}
impl<'tcx> MirPass<'tcx> for TypeckMir {
fn run_pass<'a>(&mut self, tcx: TyCtxt<'a, 'tcx, 'tcx>,
src: MirSource, mir: &mut Mir<'tcx>) {
+ debug!("run_pass: {}", tcx.node_path_str(src.item_id()));
+
if tcx.sess.err_count() > 0 {
// compiling a broken program can obviously result in a
// broken MIR, so try not to report duplicate errors.
span,
E0449,
"unnecessary visibility qualifier");
+ if vis == &Visibility::Public {
+ err.span_label(span, &format!("`pub` not needed here"));
+ }
if let Some(note) = note {
- err.span_note(span, note);
+ err.note(note);
}
err.emit();
}
hir::ExprIndex(..) |
hir::ExprField(..) |
hir::ExprTupField(..) |
- hir::ExprVec(_) |
+ hir::ExprArray(_) |
hir::ExprType(..) |
hir::ExprTup(..) => {}
});
if any_static {
if !self.sess.features.borrow().static_recursion {
- emit_feature_err(&self.sess.parse_sess.span_diagnostic,
+ emit_feature_err(&self.sess.parse_sess,
"static_recursion",
*self.root_span,
GateIssue::Language,
if !vis.is_at_least(self.required_visibility, &self.tcx.map) {
if self.tcx.sess.features.borrow().pub_restricted ||
self.old_error_set.contains(&ty.id) {
- span_err!(self.tcx.sess, ty.span, E0446,
+ let mut err = struct_span_err!(self.tcx.sess, ty.span, E0446,
"private type in public interface");
+ err.span_label(ty.span, &format!("can't leak private type"));
+ err.emit();
} else {
self.tcx.sess.add_lint(lint::builtin::PRIVATE_IN_PUBLIC,
node_id,
//! Here we build the "reduced graph": the graph of the module tree without
//! any imports resolved.
+use macros;
use resolve_imports::ImportDirectiveSubclass::{self, GlobImport};
use {Module, ModuleS, ModuleKind};
use Namespace::{self, TypeNS, ValueNS};
use Resolver;
use {resolve_error, resolve_struct_error, ResolutionError};
+use rustc::middle::cstore::LoadedMacroKind;
use rustc::hir::def::*;
use rustc::hir::def_id::{CRATE_DEF_INDEX, DefId};
use rustc::hir::map::DefPathData;
use rustc::ty;
use std::cell::Cell;
+use std::rc::Rc;
use syntax::ast::Name;
use syntax::attr;
use syntax::parse::token;
-use syntax::ast::{Block, Crate};
-use syntax::ast::{ForeignItem, ForeignItemKind, Item, ItemKind};
+use syntax::ast::{self, Block, ForeignItem, ForeignItemKind, Item, ItemKind};
use syntax::ast::{Mutability, StmtKind, TraitItem, TraitItemKind};
use syntax::ast::{Variant, ViewPathGlob, ViewPathList, ViewPathSimple};
+use syntax::ext::base::{MultiItemModifier, Resolver as SyntaxResolver};
+use syntax::ext::hygiene::Mark;
+use syntax::feature_gate::{self, emit_feature_err};
+use syntax::ext::tt::macro_rules;
use syntax::parse::token::keywords;
use syntax::visit::{self, Visitor};
}
impl<'b> Resolver<'b> {
- /// Constructs the reduced graph for the entire crate.
- pub fn build_reduced_graph(&mut self, krate: &Crate) {
- visit::walk_crate(&mut BuildReducedGraphVisitor { resolver: self }, krate);
- }
-
/// Defines `name` in namespace `ns` of module `parent` to be `def` if it is not yet defined;
/// otherwise, reports an error.
fn define<T>(&mut self, parent: Module<'b>, name: Name, ns: Namespace, def: T)
fn block_needs_anonymous_module(&mut self, block: &Block) -> bool {
// If any statements are items, we need to create an anonymous module
block.stmts.iter().any(|statement| match statement.node {
- StmtKind::Item(_) => true,
+ StmtKind::Item(_) | StmtKind::Mac(_) => true,
_ => false,
})
}
/// Constructs the reduced graph for one item.
- fn build_reduced_graph_for_item(&mut self, item: &Item) {
- self.crate_loader.process_item(item, &self.definitions);
-
+ fn build_reduced_graph_for_item(&mut self, item: &Item, expansion: Mark) {
let parent = self.current_module;
let name = item.ident.name;
let sp = item.span;
}
ItemKind::ExternCrate(_) => {
- // n.b. we don't need to look at the path option here, because cstore already
- // did
+ // We need to error on `#[macro_use] extern crate` when it isn't at the
+ // crate root, because `$crate` won't work properly.
+ let is_crate_root = self.current_module.parent.is_none();
+ for loaded_macro in self.crate_loader.load_macros(item, is_crate_root) {
+ match loaded_macro.kind {
+ LoadedMacroKind::Def(mut def) => {
+ let name = def.ident.name;
+ if def.use_locally {
+ let ext = macro_rules::compile(&self.session.parse_sess, &def);
+ let shadowing =
+ self.resolve_macro_name(Mark::root(), name, false).is_some();
+ self.expansion_data[&Mark::root()].module.macros.borrow_mut()
+ .insert(name, macros::NameBinding {
+ ext: Rc::new(ext),
+ expansion: expansion,
+ shadowing: shadowing,
+ span: loaded_macro.import_site,
+ });
+ self.macro_names.insert(name);
+ }
+ if def.export {
+ def.id = self.next_node_id();
+ self.exported_macros.push(def);
+ }
+ }
+ LoadedMacroKind::CustomDerive(name, ext) => {
+ self.insert_custom_derive(&name, ext, item.span);
+ }
+ }
+ }
+ self.crate_loader.process_item(item, &self.definitions);
+
+ // n.b. we don't need to look at the path option here, because cstore already did
if let Some(crate_id) = self.session.cstore.extern_mod_stmt_cnum(item.id) {
let def_id = DefId {
krate: crate_id,
}
}
+ ItemKind::Mod(..) if item.ident == keywords::Invalid.ident() => {} // Crate root
+
ItemKind::Mod(..) => {
let def = Def::Mod(self.definitions.local_def_id(item.id));
let module = self.arenas.alloc_module(ModuleS {
attr::contains_name(&item.attrs, "no_implicit_prelude")
},
normal_ancestor_id: Some(item.id),
+ macros_escape: self.contains_macro_use(&item.attrs),
..ModuleS::new(Some(parent), ModuleKind::Def(def, name))
});
self.define(parent, name, TypeNS, (module, sp, vis));
self.current_module = module;
}
- ItemKind::ForeignMod(..) => {}
+ ItemKind::ForeignMod(..) => self.crate_loader.process_item(item, &self.definitions),
// These items live in the value namespace.
ItemKind::Static(_, m, _) => {
}
module.populated.set(true)
}
+
+ // does this attribute list contain "macro_use"?
+ fn contains_macro_use(&mut self, attrs: &[ast::Attribute]) -> bool {
+ for attr in attrs {
+ if attr.check_name("macro_escape") {
+ let msg = "macro_escape is a deprecated synonym for macro_use";
+ let mut err = self.session.struct_span_warn(attr.span, msg);
+ if let ast::AttrStyle::Inner = attr.node.style {
+ err.help("consider an outer attribute, #[macro_use] mod ...").emit();
+ } else {
+ err.emit();
+ }
+ } else if !attr.check_name("macro_use") {
+ continue;
+ }
+
+ if !attr.is_word() {
+ self.session.span_err(attr.span, "arguments to macro_use are not allowed here");
+ }
+ return true;
+ }
+
+ false
+ }
+
+ fn insert_custom_derive(&mut self, name: &str, ext: Rc<MultiItemModifier>, sp: Span) {
+ if !self.session.features.borrow().rustc_macro {
+ let sess = &self.session.parse_sess;
+ let msg = "loading custom derive macro crates is experimentally supported";
+ emit_feature_err(sess, "rustc_macro", sp, feature_gate::GateIssue::Language, msg);
+ }
+ if self.derive_modes.insert(token::intern(name), ext).is_some() {
+ self.session.span_err(sp, &format!("cannot shadow existing derive mode `{}`", name));
+ }
+ }
}
-struct BuildReducedGraphVisitor<'a, 'b: 'a> {
- resolver: &'a mut Resolver<'b>,
+pub struct BuildReducedGraphVisitor<'a, 'b: 'a> {
+ pub resolver: &'a mut Resolver<'b>,
+ pub expansion: Mark,
+}
+
+impl<'a, 'b> BuildReducedGraphVisitor<'a, 'b> {
+ fn visit_invoc(&mut self, id: ast::NodeId) {
+ self.resolver.expansion_data.get_mut(&Mark::from_placeholder_id(id)).unwrap().module =
+ self.resolver.current_module;
+ }
+}
+
+macro_rules! method {
+ ($visit:ident: $ty:ty, $invoc:path, $walk:ident) => {
+ fn $visit(&mut self, node: &$ty) {
+ match node.node {
+ $invoc(..) => self.visit_invoc(node.id),
+ _ => visit::$walk(self, node),
+ }
+ }
+ }
}
impl<'a, 'b> Visitor for BuildReducedGraphVisitor<'a, 'b> {
+ method!(visit_impl_item: ast::ImplItem, ast::ImplItemKind::Macro, walk_impl_item);
+ method!(visit_stmt: ast::Stmt, ast::StmtKind::Mac, walk_stmt);
+ method!(visit_expr: ast::Expr, ast::ExprKind::Mac, walk_expr);
+ method!(visit_pat: ast::Pat, ast::PatKind::Mac, walk_pat);
+ method!(visit_ty: ast::Ty, ast::TyKind::Mac, walk_ty);
+
fn visit_item(&mut self, item: &Item) {
+ match item.node {
+ ItemKind::Mac(..) if item.id == ast::DUMMY_NODE_ID => return, // Scope placeholder
+ ItemKind::Mac(..) => return self.visit_invoc(item.id),
+ _ => {}
+ }
+
let parent = self.resolver.current_module;
- self.resolver.build_reduced_graph_for_item(item);
+ self.resolver.build_reduced_graph_for_item(item, self.expansion);
visit::walk_item(self, item);
self.resolver.current_module = parent;
}
fn visit_foreign_item(&mut self, foreign_item: &ForeignItem) {
self.resolver.build_reduced_graph_for_foreign_item(foreign_item);
+ visit::walk_foreign_item(self, foreign_item);
}
fn visit_block(&mut self, block: &Block) {
(Def::Method(item_def_id), ValueNS)
}
TraitItemKind::Type(..) => (Def::AssociatedTy(item_def_id), TypeNS),
- TraitItemKind::Macro(_) => panic!("unexpanded macro in resolve!"),
+ TraitItemKind::Macro(_) => return self.visit_invoc(item.id),
};
self.resolver.trait_item_map.insert((item.ident.name, def_id), is_static_method);
use self::UseLexicalScopeFlag::*;
use self::ModulePrefixResult::*;
-use rustc::hir::map::Definitions;
+use rustc::hir::map::{Definitions, DefCollector};
use rustc::hir::{self, PrimTy, TyBool, TyChar, TyFloat, TyInt, TyUint, TyStr};
use rustc::middle::cstore::CrateLoader;
use rustc::session::Session;
use errors::DiagnosticBuilder;
use std::cell::{Cell, RefCell};
-use std::rc::Rc;
use std::fmt;
use std::mem::replace;
+use std::rc::Rc;
use resolve_imports::{ImportDirective, NameResolution};
let mut err = struct_span_err!(resolver.session,
span,
E0425,
- "unresolved name `{}`{}",
- path,
- msg);
+ "unresolved name `{}`",
+ path);
+ if msg != "" {
+ err.span_label(span, &msg);
+ } else {
+ err.span_label(span, &format!("unresolved name"));
+ }
+
match context {
UnresolvedNameContext::Other => {
if msg.is_empty() && is_static_method && is_field {
// access the children must be preceded with a
// `populate_module_if_necessary` call.
populated: Cell<bool>,
+
+ macros: RefCell<FnvHashMap<Name, macros::NameBinding>>,
+ macros_escape: bool,
}
pub type Module<'a> = &'a ModuleS<'a>;
globs: RefCell::new((Vec::new())),
traits: RefCell::new(None),
populated: Cell::new(true),
+ macros: RefCell::new(FnvHashMap()),
+ macros_escape: false,
}
}
privacy_errors: Vec<PrivacyError<'a>>,
ambiguity_errors: Vec<AmbiguityError<'a>>,
+ macro_shadowing_errors: FnvHashSet<Span>,
arenas: &'a ResolverArenas<'a>,
dummy_binding: &'a NameBinding<'a>,
macro_names: FnvHashSet<Name>,
// Maps the `Mark` of an expansion to its containing module or block.
- expansion_data: FnvHashMap<u32, macros::ExpansionData>,
+ expansion_data: FnvHashMap<Mark, macros::ExpansionData<'a>>,
}
pub struct ResolverArenas<'a> {
let mut module_map = NodeMap();
module_map.insert(CRATE_NODE_ID, graph_root);
+ let mut definitions = Definitions::new();
+ DefCollector::new(&mut definitions).collect_root();
+
let mut expansion_data = FnvHashMap();
- expansion_data.insert(0, macros::ExpansionData::default()); // Crate root expansion
+ expansion_data.insert(Mark::root(), macros::ExpansionData::root(graph_root));
Resolver {
session: session,
- definitions: Definitions::new(),
+ definitions: definitions,
macros_at_scope: FnvHashMap(),
// The outermost module has def ID 0; this is not reflected in the
privacy_errors: Vec::new(),
ambiguity_errors: Vec::new(),
+ macro_shadowing_errors: FnvHashSet(),
arenas: arenas,
dummy_binding: arenas.alloc_name_binding(NameBinding {
/// Entry point to crate resolution.
pub fn resolve_crate(&mut self, krate: &Crate) {
+ // Collect `DefId`s for exported macro defs.
+ for def in &krate.exported_macros {
+ DefCollector::new(&mut self.definitions).with_parent(CRATE_DEF_INDEX, |collector| {
+ collector.visit_macro_def(def)
+ })
+ }
+
self.current_module = self.graph_root;
visit::walk_crate(self, krate);
let mut context = UnresolvedNameContext::Other;
let mut def = Def::Err;
if !msg.is_empty() {
- msg = format!(". Did you mean {}?", msg);
+ msg = format!("did you mean {}?", msg);
} else {
// we display a help message if this is a module
let name_path = path.segments.iter()
} else {
// danger, shouldn't be ident?
names.push(token::intern("<opaque>"));
- collect_mod(names, module);
+ collect_mod(names, module.parent.unwrap());
}
}
collect_mod(&mut names, module);
// option. This file may not be copied, modified, or distributed
// except according to those terms.
-use Resolver;
-use rustc::middle::cstore::LoadedMacro;
-use rustc::util::nodemap::FnvHashMap;
-use std::cell::RefCell;
-use std::mem;
+use {Module, Resolver};
+use build_reduced_graph::BuildReducedGraphVisitor;
+use rustc::hir::def_id::{CRATE_DEF_INDEX, DefIndex};
+use rustc::hir::map::{self, DefCollector};
use std::rc::Rc;
-use syntax::ast::{self, Name};
+use syntax::ast;
use syntax::errors::DiagnosticBuilder;
use syntax::ext::base::{self, MultiModifier, MultiDecorator, MultiItemModifier};
-use syntax::ext::base::{NormalTT, Resolver as SyntaxResolver, SyntaxExtension};
+use syntax::ext::base::{NormalTT, SyntaxExtension};
use syntax::ext::expand::{Expansion, Invocation, InvocationKind};
-use syntax::ext::hygiene::Mark;
+use syntax::ext::hygiene::{Mark, SyntaxContext};
use syntax::ext::tt::macro_rules;
-use syntax::feature_gate::{self, emit_feature_err};
-use syntax::parse::token::{self, intern};
+use syntax::parse::token::intern;
use syntax::util::lev_distance::find_best_match_for_name;
-use syntax::visit::{self, Visitor};
-use syntax_pos::Span;
+use syntax_pos::{Span, DUMMY_SP};
+
+// FIXME(jseyfried) Merge with `::NameBinding`.
+pub struct NameBinding {
+ pub ext: Rc<SyntaxExtension>,
+ pub expansion: Mark,
+ pub shadowing: bool,
+ pub span: Span,
+}
-#[derive(Clone, Default)]
-pub struct ExpansionData {
- module: Rc<ModuleData>,
+#[derive(Clone)]
+pub struct ExpansionData<'a> {
+ backtrace: SyntaxContext,
+ pub module: Module<'a>,
+ def_index: DefIndex,
+ // True if this expansion is in a `const_integer` position, for example `[u32; m!()]`.
+ // c.f. `DefCollector::visit_ast_const_integer`.
+ const_integer: bool,
}
-// FIXME(jseyfried): merge with `::ModuleS`.
-#[derive(Default)]
-struct ModuleData {
- parent: Option<Rc<ModuleData>>,
- macros: RefCell<FnvHashMap<Name, Rc<SyntaxExtension>>>,
- macros_escape: bool,
+impl<'a> ExpansionData<'a> {
+ pub fn root(graph_root: Module<'a>) -> Self {
+ ExpansionData {
+ backtrace: SyntaxContext::empty(),
+ module: graph_root,
+ def_index: CRATE_DEF_INDEX,
+ const_integer: false,
+ }
+ }
}
impl<'a> base::Resolver for Resolver<'a> {
self.session.next_node_id()
}
- fn visit_expansion(&mut self, mark: Mark, expansion: &Expansion) {
- expansion.visit_with(&mut ExpansionVisitor {
- current_module: self.expansion_data[&mark.as_u32()].module.clone(),
- resolver: self,
+ fn get_module_scope(&mut self, id: ast::NodeId) -> Mark {
+ let mark = Mark::fresh();
+ let module = self.module_map[&id];
+ self.expansion_data.insert(mark, ExpansionData {
+ backtrace: SyntaxContext::empty(),
+ module: module,
+ def_index: module.def_id().unwrap().index,
+ const_integer: false,
});
+ mark
+ }
+
+ fn visit_expansion(&mut self, mark: Mark, expansion: &Expansion) {
+ self.collect_def_ids(mark, expansion);
+ self.current_module = self.expansion_data[&mark].module;
+ expansion.visit_with(&mut BuildReducedGraphVisitor { resolver: self, expansion: mark });
}
fn add_macro(&mut self, scope: Mark, mut def: ast::MacroDef) {
self.session.span_err(def.span, "user-defined macros may not be named `macro_rules`");
}
if def.use_locally {
- let ext = macro_rules::compile(&self.session.parse_sess, &def);
- self.add_ext(scope, def.ident, Rc::new(ext));
+ let ExpansionData { mut module, backtrace, .. } = self.expansion_data[&scope];
+ while module.macros_escape {
+ module = module.parent.unwrap();
+ }
+ let binding = NameBinding {
+ ext: Rc::new(macro_rules::compile(&self.session.parse_sess, &def)),
+ expansion: backtrace.data().prev_ctxt.data().outer_mark,
+ shadowing: self.resolve_macro_name(scope, def.ident.name, false).is_some(),
+ span: def.span,
+ };
+ module.macros.borrow_mut().insert(def.ident.name, binding);
+ self.macro_names.insert(def.ident.name);
}
if def.export {
def.id = self.next_node_id();
}
}
- fn add_ext(&mut self, scope: Mark, ident: ast::Ident, ext: Rc<SyntaxExtension>) {
+ fn add_ext(&mut self, ident: ast::Ident, ext: Rc<SyntaxExtension>) {
if let NormalTT(..) = *ext {
self.macro_names.insert(ident.name);
}
-
- let mut module = self.expansion_data[&scope.as_u32()].module.clone();
- while module.macros_escape {
- module = module.parent.clone().unwrap();
- }
- module.macros.borrow_mut().insert(ident.name, ext);
+ self.graph_root.macros.borrow_mut().insert(ident.name, NameBinding {
+ ext: ext,
+ expansion: Mark::root(),
+ shadowing: false,
+ span: DUMMY_SP,
+ });
}
fn add_expansions_at_stmt(&mut self, id: ast::NodeId, macros: Vec<Mark>) {
fn find_attr_invoc(&mut self, attrs: &mut Vec<ast::Attribute>) -> Option<ast::Attribute> {
for i in 0..attrs.len() {
let name = intern(&attrs[i].name());
- match self.expansion_data[&0].module.macros.borrow().get(&name) {
- Some(ext) => match **ext {
+ match self.expansion_data[&Mark::root()].module.macros.borrow().get(&name) {
+ Some(binding) => match *binding.ext {
MultiModifier(..) | MultiDecorator(..) | SyntaxExtension::AttrProcMacro(..) => {
return Some(attrs.remove(i))
}
InvocationKind::Attr { ref attr, .. } => (intern(&*attr.name()), attr.span),
};
- let mut module = self.expansion_data[&scope.as_u32()].module.clone();
- loop {
- if let Some(ext) = module.macros.borrow().get(&name) {
- return Some(ext.clone());
- }
- match module.parent.clone() {
- Some(parent) => module = parent,
- None => break,
- }
- }
-
- let mut err =
- self.session.struct_span_err(span, &format!("macro undefined: '{}!'", name));
- self.suggest_macro_name(&name.as_str(), &mut err);
- err.emit();
- None
+ self.resolve_macro_name(scope, name, true).or_else(|| {
+ let mut err =
+ self.session.struct_span_err(span, &format!("macro undefined: '{}!'", name));
+ self.suggest_macro_name(&name.as_str(), &mut err);
+ err.emit();
+ None
+ })
}
fn resolve_derive_mode(&mut self, ident: ast::Ident) -> Option<Rc<MultiItemModifier>> {
}
impl<'a> Resolver<'a> {
- fn suggest_macro_name(&mut self, name: &str, err: &mut DiagnosticBuilder<'a>) {
- if let Some(suggestion) = find_best_match_for_name(self.macro_names.iter(), name, None) {
- if suggestion != name {
- err.help(&format!("did you mean `{}!`?", suggestion));
- } else {
- err.help(&format!("have you added the `#[macro_use]` on the module/import?"));
- }
- }
- }
-
- fn insert_custom_derive(&mut self, name: &str, ext: Rc<MultiItemModifier>, sp: Span) {
- if !self.session.features.borrow().rustc_macro {
- let diagnostic = &self.session.parse_sess.span_diagnostic;
- let msg = "loading custom derive macro crates is experimentally supported";
- emit_feature_err(diagnostic, "rustc_macro", sp, feature_gate::GateIssue::Language, msg);
- }
- if self.derive_modes.insert(token::intern(name), ext).is_some() {
- self.session.span_err(sp, &format!("cannot shadow existing derive mode `{}`", name));
- }
- }
-}
-
-struct ExpansionVisitor<'b, 'a: 'b> {
- resolver: &'b mut Resolver<'a>,
- current_module: Rc<ModuleData>,
-}
-
-impl<'a, 'b> ExpansionVisitor<'a, 'b> {
- fn visit_invoc(&mut self, id: ast::NodeId) {
- self.resolver.expansion_data.insert(id.as_u32(), ExpansionData {
- module: self.current_module.clone(),
- });
- }
+ pub fn resolve_macro_name(&mut self, scope: Mark, name: ast::Name, record_used: bool)
+ -> Option<Rc<SyntaxExtension>> {
+ let ExpansionData { mut module, backtrace, .. } = self.expansion_data[&scope];
+ loop {
+ if let Some(binding) = module.macros.borrow().get(&name) {
+ let mut backtrace = backtrace.data();
+ while binding.expansion != backtrace.outer_mark {
+ if backtrace.outer_mark != Mark::root() {
+ backtrace = backtrace.prev_ctxt.data();
+ continue
+ }
- // does this attribute list contain "macro_use"?
- fn contains_macro_use(&mut self, attrs: &[ast::Attribute]) -> bool {
- for attr in attrs {
- if attr.check_name("macro_escape") {
- let msg = "macro_escape is a deprecated synonym for macro_use";
- let mut err = self.resolver.session.struct_span_warn(attr.span, msg);
- if let ast::AttrStyle::Inner = attr.node.style {
- err.help("consider an outer attribute, #[macro_use] mod ...").emit();
- } else {
- err.emit();
+ if record_used && binding.shadowing &&
+ self.macro_shadowing_errors.insert(binding.span) {
+ let msg = format!("`{}` is already in scope", name);
+ self.session.struct_span_err(binding.span, &msg)
+ .note("macro-expanded `macro_rules!`s and `#[macro_use]`s \
+ may not shadow existing macros (see RFC 1560)")
+ .emit();
+ }
+ break
}
- } else if !attr.check_name("macro_use") {
- continue;
+ return Some(binding.ext.clone());
}
-
- if !attr.is_word() {
- self.resolver.session.span_err(attr.span,
- "arguments to macro_use are not allowed here");
+ match module.parent {
+ Some(parent) => module = parent,
+ None => break,
}
- return true;
}
-
- false
+ None
}
-}
-macro_rules! method {
- ($visit:ident: $ty:ty, $invoc:path, $walk:ident) => {
- fn $visit(&mut self, node: &$ty) {
- match node.node {
- $invoc(..) => self.visit_invoc(node.id),
- _ => visit::$walk(self, node),
+ fn suggest_macro_name(&mut self, name: &str, err: &mut DiagnosticBuilder<'a>) {
+ if let Some(suggestion) = find_best_match_for_name(self.macro_names.iter(), name, None) {
+ if suggestion != name {
+ err.help(&format!("did you mean `{}!`?", suggestion));
+ } else {
+ err.help(&format!("have you added the `#[macro_use]` on the module/import?"));
}
}
}
-}
-impl<'a, 'b> Visitor for ExpansionVisitor<'a, 'b> {
- method!(visit_trait_item: ast::TraitItem, ast::TraitItemKind::Macro, walk_trait_item);
- method!(visit_impl_item: ast::ImplItem, ast::ImplItemKind::Macro, walk_impl_item);
- method!(visit_stmt: ast::Stmt, ast::StmtKind::Mac, walk_stmt);
- method!(visit_expr: ast::Expr, ast::ExprKind::Mac, walk_expr);
- method!(visit_pat: ast::Pat, ast::PatKind::Mac, walk_pat);
- method!(visit_ty: ast::Ty, ast::TyKind::Mac, walk_ty);
+ fn collect_def_ids(&mut self, mark: Mark, expansion: &Expansion) {
+ let expansion_data = &mut self.expansion_data;
+ let ExpansionData { backtrace, def_index, const_integer, module } = expansion_data[&mark];
+ let visit_macro_invoc = &mut |invoc: map::MacroInvocationData| {
+ expansion_data.entry(invoc.mark).or_insert(ExpansionData {
+ backtrace: backtrace.apply_mark(invoc.mark),
+ def_index: invoc.def_index,
+ const_integer: invoc.const_integer,
+ module: module,
+ });
+ };
- fn visit_item(&mut self, item: &ast::Item) {
- match item.node {
- ast::ItemKind::Mac(..) if item.id == ast::DUMMY_NODE_ID => {} // Scope placeholder
- ast::ItemKind::Mac(..) => self.visit_invoc(item.id),
- ast::ItemKind::Mod(..) => {
- let module_data = ModuleData {
- parent: Some(self.current_module.clone()),
- macros: RefCell::new(FnvHashMap()),
- macros_escape: self.contains_macro_use(&item.attrs),
- };
- let orig_module = mem::replace(&mut self.current_module, Rc::new(module_data));
- visit::walk_item(self, item);
- self.current_module = orig_module;
- }
- ast::ItemKind::ExternCrate(..) => {
- // We need to error on `#[macro_use] extern crate` when it isn't at the
- // crate root, because `$crate` won't work properly.
- // FIXME(jseyfried): This will be nicer once `ModuleData` is merged with `ModuleS`.
- let is_crate_root = self.current_module.parent.as_ref().unwrap().parent.is_none();
- for def in self.resolver.crate_loader.load_macros(item, is_crate_root) {
- match def {
- LoadedMacro::Def(def) => self.resolver.add_macro(Mark::root(), def),
- LoadedMacro::CustomDerive(name, ext) => {
- self.resolver.insert_custom_derive(&name, ext, item.span);
- }
- }
+ let mut def_collector = DefCollector::new(&mut self.definitions);
+ def_collector.visit_macro_invoc = Some(visit_macro_invoc);
+ def_collector.with_parent(def_index, |def_collector| {
+ if const_integer {
+ if let Expansion::Expr(ref expr) = *expansion {
+ def_collector.visit_ast_const_integer(expr);
}
- visit::walk_item(self, item);
}
- _ => visit::walk_item(self, item),
- }
- }
-
- fn visit_block(&mut self, block: &ast::Block) {
- let module_data = ModuleData {
- parent: Some(self.current_module.clone()),
- macros: RefCell::new(FnvHashMap()),
- macros_escape: false,
- };
- let orig_module = mem::replace(&mut self.current_module, Rc::new(module_data));
- visit::walk_block(self, block);
- self.current_module = orig_module;
+ expansion.visit_with(def_collector)
+ });
}
}
};
match (value_result, type_result) {
- // With `#![feature(item_like_imports)]`, all namespaces
- // must be re-exported with extra visibility for an error to occur.
- (Ok(value_binding), Ok(type_binding)) if self.new_import_semantics => {
+ // All namespaces must be re-exported with extra visibility for an error to occur.
+ (Ok(value_binding), Ok(type_binding)) => {
let vis = directive.vis.get();
if !value_binding.pseudo_vis().is_at_least(vis, self) &&
!type_binding.pseudo_vis().is_at_least(vis, self) {
// option. This file may not be copied, modified, or distributed
// except according to those terms.
-use llvm::{self, ValueRef};
+use llvm::{self, ValueRef, Integer, Pointer, Float, Double, Struct, Array, Vector};
use base;
use build::AllocaFcx;
use common::{type_is_fat_ptr, BlockAndBuilder, C_uint};
"powerpc64" => cabi_powerpc64::compute_abi_info(ccx, self),
"s390x" => cabi_s390x::compute_abi_info(ccx, self),
"asmjs" => cabi_asmjs::compute_abi_info(ccx, self),
+ "wasm32" => cabi_asmjs::compute_abi_info(ccx, self),
a => ccx.sess().fatal(&format!("unrecognized arch \"{}\" in target specification", a))
}
}
}
}
+
+pub fn align_up_to(off: usize, a: usize) -> usize {
+ return (off + a - 1) / a * a;
+}
+
+fn align(off: usize, ty: Type, pointer: usize) -> usize {
+ let a = ty_align(ty, pointer);
+ return align_up_to(off, a);
+}
+
+pub fn ty_align(ty: Type, pointer: usize) -> usize {
+ match ty.kind() {
+ Integer => ((ty.int_width() as usize) + 7) / 8,
+ Pointer => pointer,
+ Float => 4,
+ Double => 8,
+ Struct => {
+ if ty.is_packed() {
+ 1
+ } else {
+ let str_tys = ty.field_types();
+ str_tys.iter().fold(1, |a, t| cmp::max(a, ty_align(*t, pointer)))
+ }
+ }
+ Array => {
+ let elt = ty.element_type();
+ ty_align(elt, pointer)
+ }
+ Vector => {
+ let len = ty.vector_length();
+ let elt = ty.element_type();
+ ty_align(elt, pointer) * len
+ }
+ _ => bug!("ty_align: unhandled type")
+ }
+}
+
+pub fn ty_size(ty: Type, pointer: usize) -> usize {
+ match ty.kind() {
+ Integer => ((ty.int_width() as usize) + 7) / 8,
+ Pointer => pointer,
+ Float => 4,
+ Double => 8,
+ Struct => {
+ if ty.is_packed() {
+ let str_tys = ty.field_types();
+ str_tys.iter().fold(0, |s, t| s + ty_size(*t, pointer))
+ } else {
+ let str_tys = ty.field_types();
+ let size = str_tys.iter().fold(0, |s, t| {
+ align(s, *t, pointer) + ty_size(*t, pointer)
+ });
+ align(size, ty, pointer)
+ }
+ }
+ Array => {
+ let len = ty.array_length();
+ let elt = ty.element_type();
+ let eltsz = ty_size(elt, pointer);
+ len * eltsz
+ }
+ Vector => {
+ let len = ty.vector_length();
+ let elt = ty.element_type();
+ let eltsz = ty_size(elt, pointer);
+ len * eltsz
+ },
+ _ => bug!("ty_size: unhandled type")
+ }
+}
let meta = val.meta;
- let offset = st.offset_of_field(ix).bytes();
+ let offset = st.offsets[ix].bytes();
let unaligned_offset = C_uint(bcx.ccx(), offset);
// Get the alignment of the field
let lldiscr = C_integral(Type::from_integer(ccx, d), discr.0 as u64, true);
let mut vals_with_discr = vec![lldiscr];
vals_with_discr.extend_from_slice(vals);
- let mut contents = build_const_struct(ccx, &variant.offset_after_field[..],
- &vals_with_discr[..], variant.packed);
- let needed_padding = l.size(dl).bytes() - variant.min_size().bytes();
+ let mut contents = build_const_struct(ccx, &variant,
+ &vals_with_discr[..]);
+ let needed_padding = l.size(dl).bytes() - variant.min_size.bytes();
if needed_padding > 0 {
contents.push(padding(ccx, needed_padding));
}
layout::Univariant { ref variant, .. } => {
assert_eq!(discr, Disr(0));
let contents = build_const_struct(ccx,
- &variant.offset_after_field[..], vals, variant.packed);
+ &variant, vals);
C_struct(ccx, &contents[..], variant.packed)
}
layout::Vector { .. } => {
}
layout::StructWrappedNullablePointer { ref nonnull, nndiscr, .. } => {
if discr.0 == nndiscr {
- C_struct(ccx, &build_const_struct(ccx,
- &nonnull.offset_after_field[..],
- vals, nonnull.packed),
+ C_struct(ccx, &build_const_struct(ccx, &nonnull, vals),
false)
} else {
let fields = compute_fields(ccx, t, nndiscr as usize, false);
// field; see #8506.
C_null(type_of::sizing_type_of(ccx, ty))
}).collect::<Vec<ValueRef>>();
- C_struct(ccx, &build_const_struct(ccx,
- &nonnull.offset_after_field[..],
- &vals[..],
- false),
+ C_struct(ccx, &build_const_struct(ccx, &nonnull, &vals[..]),
false)
}
}
/// a two-element struct will locate it at offset 4, and accesses to it
/// will read the wrong memory.
fn build_const_struct<'a, 'tcx>(ccx: &CrateContext<'a, 'tcx>,
- offset_after_field: &[layout::Size],
- vals: &[ValueRef],
- packed: bool)
+ st: &layout::Struct,
+ vals: &[ValueRef])
-> Vec<ValueRef> {
- assert_eq!(vals.len(), offset_after_field.len());
+ assert_eq!(vals.len(), st.offsets.len());
if vals.len() == 0 {
return Vec::new();
// offset of current value
let mut offset = 0;
let mut cfields = Vec::new();
- let target_offsets = offset_after_field.iter().map(|i| i.bytes());
- for (&val, target_offset) in vals.iter().zip(target_offsets) {
- assert!(!is_undef(val));
- cfields.push(val);
- offset += machine::llsize_of_alloc(ccx, val_ty(val));
- if !packed {
- let val_align = machine::llalign_of_min(ccx, val_ty(val));
- offset = roundup(offset, val_align);
- }
- if offset != target_offset {
+ let offsets = st.offsets.iter().map(|i| i.bytes());
+ for (&val, target_offset) in vals.iter().zip(offsets) {
+ if offset < target_offset {
cfields.push(padding(ccx, target_offset - offset));
offset = target_offset;
}
+ assert!(!is_undef(val));
+ cfields.push(val);
+ offset += machine::llsize_of_alloc(ccx, val_ty(val));
}
- let size = offset_after_field.last().unwrap();
- if offset < size.bytes() {
- cfields.push(padding(ccx, size.bytes() - offset));
+ if offset < st.min_size.bytes() {
+ cfields.push(padding(ccx, st.min_size.bytes() - offset));
}
cfields
let empty_vec = Vec::new();
let empty_str = String::new();
let args = sess.opts.cg.link_args.as_ref().unwrap_or(&empty_vec);
- let mut args = args.iter().chain(used_link_args.iter());
+ let more_args = &sess.opts.cg.link_arg;
+ let mut args = args.iter().chain(more_args.iter()).chain(used_link_args.iter());
let relocation_model = sess.opts.cg.relocation_model.as_ref()
.unwrap_or(&empty_str);
if (t.options.relocation_model == "pic" || *relocation_model == "pic")
if let Some(ref args) = sess.opts.cg.link_args {
cmd.args(args);
}
+ cmd.args(&sess.opts.cg.link_arg);
cmd.args(&used_link_args);
}
let mut hash_state = scx.symbol_hasher().borrow_mut();
record_time(&tcx.sess.perf_stats.symbol_hash_time, || {
hash_state.reset();
- let mut hasher = Sha256Hasher(&mut hash_state);
+ let hasher = Sha256Hasher(&mut hash_state);
+ let mut hasher = ty::util::TypeIdHasher::new(tcx, hasher);
// the main symbol name is not necessarily unique; hash in the
// compiler's internal def-path, guaranteeing each symbol has a
// truly unique path
- def_path.deterministic_hash_to(tcx, &mut hasher);
+ hasher.def_path(def_path);
// Include the main item-type. Note that, in this case, the
// assertions about `needs_subst` may not hold, but this item-type
// ought to be the same for every reference anyway.
- let mut hasher = ty::util::TypeIdHasher::new(tcx, hasher);
assert!(!item_type.has_erasable_regions());
hasher.visit_ty(item_type);
#![allow(non_upper_case_globals)]
use llvm::{Integer, Pointer, Float, Double, Struct, Array, Vector};
-use abi::{FnType, ArgType};
+use abi::{self, FnType, ArgType};
use context::CrateContext;
use type_::Type;
-use std::cmp;
-
-fn align_up_to(off: usize, a: usize) -> usize {
- return (off + a - 1) / a * a;
-}
-
-fn align(off: usize, ty: Type) -> usize {
- let a = ty_align(ty);
- return align_up_to(off, a);
-}
-
-fn ty_align(ty: Type) -> usize {
- match ty.kind() {
- Integer => ((ty.int_width() as usize) + 7) / 8,
- Pointer => 8,
- Float => 4,
- Double => 8,
- Struct => {
- if ty.is_packed() {
- 1
- } else {
- let str_tys = ty.field_types();
- str_tys.iter().fold(1, |a, t| cmp::max(a, ty_align(*t)))
- }
- }
- Array => {
- let elt = ty.element_type();
- ty_align(elt)
- }
- Vector => {
- let len = ty.vector_length();
- let elt = ty.element_type();
- ty_align(elt) * len
- }
- _ => bug!("ty_align: unhandled type")
- }
-}
-
fn ty_size(ty: Type) -> usize {
- match ty.kind() {
- Integer => ((ty.int_width() as usize) + 7) / 8,
- Pointer => 8,
- Float => 4,
- Double => 8,
- Struct => {
- if ty.is_packed() {
- let str_tys = ty.field_types();
- str_tys.iter().fold(0, |s, t| s + ty_size(*t))
- } else {
- let str_tys = ty.field_types();
- let size = str_tys.iter().fold(0, |s, t| align(s, *t) + ty_size(*t));
- align(size, ty)
- }
- }
- Array => {
- let len = ty.array_length();
- let elt = ty.element_type();
- let eltsz = ty_size(elt);
- len * eltsz
- }
- Vector => {
- let len = ty.vector_length();
- let elt = ty.element_type();
- let eltsz = ty_size(elt);
- len * eltsz
- }
- _ => bug!("ty_size: unhandled type")
- }
+ abi::ty_size(ty, 8)
}
fn is_homogenous_aggregate_ty(ty: Type) -> Option<(Type, u64)> {
#![allow(non_upper_case_globals)]
use llvm::{Integer, Pointer, Float, Double, Struct, Array, Vector};
-use abi::{FnType, ArgType};
+use abi::{self, align_up_to, FnType, ArgType};
use context::CrateContext;
use type_::Type;
type TyAlignFn = fn(ty: Type) -> usize;
-fn align_up_to(off: usize, a: usize) -> usize {
- return (off + a - 1) / a * a;
-}
-
fn align(off: usize, ty: Type, align_fn: TyAlignFn) -> usize {
let a = align_fn(ty);
return align_up_to(off, a);
}
fn general_ty_align(ty: Type) -> usize {
- match ty.kind() {
- Integer => ((ty.int_width() as usize) + 7) / 8,
- Pointer => 4,
- Float => 4,
- Double => 8,
- Struct => {
- if ty.is_packed() {
- 1
- } else {
- let str_tys = ty.field_types();
- str_tys.iter().fold(1, |a, t| cmp::max(a, general_ty_align(*t)))
- }
- }
- Array => {
- let elt = ty.element_type();
- general_ty_align(elt)
- }
- Vector => {
- let len = ty.vector_length();
- let elt = ty.element_type();
- general_ty_align(elt) * len
- }
- _ => bug!("ty_align: unhandled type")
- }
+ abi::ty_align(ty, 4)
}
// For more information see:
use libc::c_uint;
use std::cmp;
use llvm;
-use llvm::{Integer, Pointer, Float, Double, Struct, Array, Vector};
-use abi::{ArgType, FnType};
+use llvm::{Integer, Pointer, Float, Double, Vector};
+use abi::{self, align_up_to, ArgType, FnType};
use context::CrateContext;
use type_::Type;
-fn align_up_to(off: usize, a: usize) -> usize {
- return (off + a - 1) / a * a;
-}
-
-fn align(off: usize, ty: Type) -> usize {
- let a = ty_align(ty);
- return align_up_to(off, a);
-}
-
fn ty_align(ty: Type) -> usize {
- match ty.kind() {
- Integer => ((ty.int_width() as usize) + 7) / 8,
- Pointer => 4,
- Float => 4,
- Double => 8,
- Struct => {
- if ty.is_packed() {
- 1
- } else {
- let str_tys = ty.field_types();
- str_tys.iter().fold(1, |a, t| cmp::max(a, ty_align(*t)))
- }
- }
- Array => {
- let elt = ty.element_type();
- ty_align(elt)
- }
- Vector => {
- let len = ty.vector_length();
- let elt = ty.element_type();
- ty_align(elt) * len
- }
- _ => bug!("ty_align: unhandled type")
- }
+ abi::ty_align(ty, 4)
}
fn ty_size(ty: Type) -> usize {
- match ty.kind() {
- Integer => ((ty.int_width() as usize) + 7) / 8,
- Pointer => 4,
- Float => 4,
- Double => 8,
- Struct => {
- if ty.is_packed() {
- let str_tys = ty.field_types();
- str_tys.iter().fold(0, |s, t| s + ty_size(*t))
- } else {
- let str_tys = ty.field_types();
- let size = str_tys.iter().fold(0, |s, t| align(s, *t) + ty_size(*t));
- align(size, ty)
- }
- }
- Array => {
- let len = ty.array_length();
- let elt = ty.element_type();
- let eltsz = ty_size(elt);
- len * eltsz
- }
- Vector => {
- let len = ty.vector_length();
- let elt = ty.element_type();
- let eltsz = ty_size(elt);
- len * eltsz
- }
- _ => bug!("ty_size: unhandled type")
- }
+ abi::ty_size(ty, 4)
}
fn classify_ret_ty(ccx: &CrateContext, ret: &mut ArgType) {
use libc::c_uint;
use std::cmp;
use llvm;
-use llvm::{Integer, Pointer, Float, Double, Struct, Array, Vector};
-use abi::{ArgType, FnType};
+use llvm::{Integer, Pointer, Float, Double, Vector};
+use abi::{self, align_up_to, ArgType, FnType};
use context::CrateContext;
use type_::Type;
-fn align_up_to(off: usize, a: usize) -> usize {
- return (off + a - 1) / a * a;
-}
-
-fn align(off: usize, ty: Type) -> usize {
- let a = ty_align(ty);
- return align_up_to(off, a);
-}
-
fn ty_align(ty: Type) -> usize {
- match ty.kind() {
- Integer => ((ty.int_width() as usize) + 7) / 8,
- Pointer => 8,
- Float => 4,
- Double => 8,
- Struct => {
- if ty.is_packed() {
- 1
- } else {
- let str_tys = ty.field_types();
- str_tys.iter().fold(1, |a, t| cmp::max(a, ty_align(*t)))
- }
- }
- Array => {
- let elt = ty.element_type();
- ty_align(elt)
- }
- Vector => {
- let len = ty.vector_length();
- let elt = ty.element_type();
- ty_align(elt) * len
- }
- _ => bug!("ty_align: unhandled type")
- }
+ abi::ty_align(ty, 8)
}
fn ty_size(ty: Type) -> usize {
- match ty.kind() {
- Integer => ((ty.int_width() as usize) + 7) / 8,
- Pointer => 8,
- Float => 4,
- Double => 8,
- Struct => {
- if ty.is_packed() {
- let str_tys = ty.field_types();
- str_tys.iter().fold(0, |s, t| s + ty_size(*t))
- } else {
- let str_tys = ty.field_types();
- let size = str_tys.iter().fold(0, |s, t| align(s, *t) + ty_size(*t));
- align(size, ty)
- }
- }
- Array => {
- let len = ty.array_length();
- let elt = ty.element_type();
- let eltsz = ty_size(elt);
- len * eltsz
- }
- Vector => {
- let len = ty.vector_length();
- let elt = ty.element_type();
- let eltsz = ty_size(elt);
- len * eltsz
- }
- _ => bug!("ty_size: unhandled type")
- }
+ abi::ty_size(ty, 8)
}
fn classify_ret_ty(ccx: &CrateContext, ret: &mut ArgType) {
use libc::c_uint;
use llvm;
-use llvm::{Integer, Pointer, Float, Double, Struct, Array};
-use abi::{FnType, ArgType};
+use llvm::{Integer, Pointer, Float, Double, Vector};
+use abi::{self, align_up_to, FnType, ArgType};
use context::CrateContext;
use type_::Type;
use std::cmp;
-fn align_up_to(off: usize, a: usize) -> usize {
- return (off + a - 1) / a * a;
-}
-
-fn align(off: usize, ty: Type) -> usize {
- let a = ty_align(ty);
- return align_up_to(off, a);
-}
-
fn ty_align(ty: Type) -> usize {
- match ty.kind() {
- Integer => ((ty.int_width() as usize) + 7) / 8,
- Pointer => 4,
- Float => 4,
- Double => 8,
- Struct => {
- if ty.is_packed() {
- 1
- } else {
- let str_tys = ty.field_types();
- str_tys.iter().fold(1, |a, t| cmp::max(a, ty_align(*t)))
- }
- }
- Array => {
- let elt = ty.element_type();
- ty_align(elt)
- }
- _ => bug!("ty_size: unhandled type")
+ if ty.kind() == Vector {
+ bug!("ty_size: unhandled type")
+ } else {
+ abi::ty_align(ty, 4)
}
}
fn ty_size(ty: Type) -> usize {
- match ty.kind() {
- Integer => ((ty.int_width() as usize) + 7) / 8,
- Pointer => 4,
- Float => 4,
- Double => 8,
- Struct => {
- if ty.is_packed() {
- let str_tys = ty.field_types();
- str_tys.iter().fold(0, |s, t| s + ty_size(*t))
- } else {
- let str_tys = ty.field_types();
- let size = str_tys.iter().fold(0, |s, t| align(s, *t) + ty_size(*t));
- align(size, ty)
- }
- }
- Array => {
- let len = ty.array_length();
- let elt = ty.element_type();
- let eltsz = ty_size(elt);
- len * eltsz
- }
- _ => bug!("ty_size: unhandled type")
+ if ty.kind() == Vector {
+ bug!("ty_size: unhandled type")
+ } else {
+ abi::ty_size(ty, 4)
}
}
// Alignment of 128 bit types is not currently handled, this will
// need to be fixed when PowerPC vector support is added.
-use llvm::{Integer, Pointer, Float, Double, Struct, Array};
-use abi::{FnType, ArgType};
+use llvm::{Integer, Pointer, Float, Double, Struct, Vector, Array};
+use abi::{self, FnType, ArgType};
use context::CrateContext;
use type_::Type;
-use std::cmp;
-
-fn align_up_to(off: usize, a: usize) -> usize {
- return (off + a - 1) / a * a;
-}
-
-fn align(off: usize, ty: Type) -> usize {
- let a = ty_align(ty);
- return align_up_to(off, a);
-}
-
-fn ty_align(ty: Type) -> usize {
- match ty.kind() {
- Integer => ((ty.int_width() as usize) + 7) / 8,
- Pointer => 8,
- Float => 4,
- Double => 8,
- Struct => {
- if ty.is_packed() {
- 1
- } else {
- let str_tys = ty.field_types();
- str_tys.iter().fold(1, |a, t| cmp::max(a, ty_align(*t)))
- }
- }
- Array => {
- let elt = ty.element_type();
- ty_align(elt)
- }
- _ => bug!("ty_align: unhandled type")
- }
-}
-
fn ty_size(ty: Type) -> usize {
- match ty.kind() {
- Integer => ((ty.int_width() as usize) + 7) / 8,
- Pointer => 8,
- Float => 4,
- Double => 8,
- Struct => {
- if ty.is_packed() {
- let str_tys = ty.field_types();
- str_tys.iter().fold(0, |s, t| s + ty_size(*t))
- } else {
- let str_tys = ty.field_types();
- let size = str_tys.iter().fold(0, |s, t| align(s, *t) + ty_size(*t));
- align(size, ty)
- }
- }
- Array => {
- let len = ty.array_length();
- let elt = ty.element_type();
- let eltsz = ty_size(elt);
- len * eltsz
- }
- _ => bug!("ty_size: unhandled type")
+ if ty.kind() == Vector {
+ bug!("ty_size: unhandled type")
+ } else {
+ abi::ty_size(ty, 8)
}
}
// for a pre-z13 machine or using -mno-vx.
use llvm::{Integer, Pointer, Float, Double, Struct, Array, Vector};
-use abi::{FnType, ArgType};
+use abi::{align_up_to, FnType, ArgType};
use context::CrateContext;
use type_::Type;
use std::cmp;
-fn align_up_to(off: usize, a: usize) -> usize {
- return (off + a - 1) / a * a;
-}
-
fn align(off: usize, ty: Type) -> usize {
let a = ty_align(ty);
return align_up_to(off, a);
use llvm::{Integer, Pointer, Float, Double};
use llvm::{Struct, Array, Attribute, Vector};
-use abi::{ArgType, FnType};
+use abi::{self, ArgType, FnType};
use context::CrateContext;
use type_::Type;
-use std::cmp;
-
#[derive(Clone, Copy, PartialEq)]
enum RegClass {
NoClass,
}
fn ty_align(ty: Type) -> usize {
- match ty.kind() {
- Integer => ((ty.int_width() as usize) + 7) / 8,
- Pointer => 8,
- Float => 4,
- Double => 8,
- Struct => {
- if ty.is_packed() {
- 1
- } else {
- let str_tys = ty.field_types();
- str_tys.iter().fold(1, |a, t| cmp::max(a, ty_align(*t)))
- }
- }
- Array => {
- let elt = ty.element_type();
- ty_align(elt)
- }
- Vector => {
- let len = ty.vector_length();
- let elt = ty.element_type();
- ty_align(elt) * len
- }
- _ => bug!("ty_align: unhandled type")
- }
+ abi::ty_align(ty, 8)
}
fn ty_size(ty: Type) -> usize {
- match ty.kind() {
- Integer => (ty.int_width() as usize + 7) / 8,
- Pointer => 8,
- Float => 4,
- Double => 8,
- Struct => {
- let str_tys = ty.field_types();
- if ty.is_packed() {
- str_tys.iter().fold(0, |s, t| s + ty_size(*t))
- } else {
- let size = str_tys.iter().fold(0, |s, t| align(s, *t) + ty_size(*t));
- align(size, ty)
- }
- }
- Array => {
- let len = ty.array_length();
- let elt = ty.element_type();
- let eltsz = ty_size(elt);
- len * eltsz
- }
- Vector => {
- let len = ty.vector_length();
- let elt = ty.element_type();
- let eltsz = ty_size(elt);
- len * eltsz
- }
-
- _ => bug!("ty_size: unhandled type")
- }
+ abi::ty_size(ty, 8)
}
fn all_mem(cls: &mut [RegClass]) {
Layout::FatPointer { .. } => true,
Layout::Univariant { ref variant, .. } => {
// There must be only 2 fields.
- if variant.offset_after_field.len() != 2 {
+ if variant.offsets.len() != 2 {
return false;
}
// Find all the scopes with variables defined in them.
let mut has_variables = BitVector::new(mir.visibility_scopes.len());
- for var in &mir.var_decls {
- has_variables.insert(var.source_info.scope.index());
+ for var in mir.vars_iter() {
+ let decl = &mir.local_decls[var];
+ has_variables.insert(decl.source_info.unwrap().scope.index());
}
// Instantiate all scopes.
let layout = ccx.layout_of(t);
debug!("DST {} layout: {:?}", t, layout);
- // Returns size in bytes of all fields except the last one
- // (we will be recursing on the last one).
- fn local_prefix_bytes(variant: &ty::layout::Struct) -> u64 {
- let fields = variant.offset_after_field.len();
- if fields > 1 {
- variant.offset_after_field[fields - 2].bytes()
- } else {
- 0
- }
- }
-
let (sized_size, sized_align) = match *layout {
ty::layout::Layout::Univariant { ref variant, .. } => {
- (local_prefix_bytes(variant), variant.align.abi())
+ (variant.offsets.last().map_or(0, |o| o.bytes()), variant.align.abi())
}
_ => {
bug!("size_and_align_of_dst: expcted Univariant for `{}`, found {:#?}",
use rustc::mir::traversal;
use common::{self, Block, BlockAndBuilder};
use glue;
-use std::iter;
use super::rvalue;
pub fn lvalue_locals<'bcx, 'tcx>(bcx: Block<'bcx,'tcx>,
analyzer.visit_mir(mir);
- let local_types = mir.arg_decls.iter().map(|a| a.ty)
- .chain(mir.var_decls.iter().map(|v| v.ty))
- .chain(mir.temp_decls.iter().map(|t| t.ty))
- .chain(iter::once(mir.return_ty));
- for (index, ty) in local_types.enumerate() {
+ for (index, ty) in mir.local_decls.iter().map(|l| l.ty).enumerate() {
let ty = bcx.monomorphize(&ty);
debug!("local {} has type {:?}", index, ty);
if ty.is_scalar() ||
fn new(mir: &'mir mir::Mir<'tcx>,
bcx: &'mir BlockAndBuilder<'bcx, 'tcx>)
-> LocalAnalyzer<'mir, 'bcx, 'tcx> {
- let local_count = mir.count_locals();
LocalAnalyzer {
mir: mir,
bcx: bcx,
- lvalue_locals: BitVector::new(local_count),
- seen_assigned: BitVector::new(local_count)
+ lvalue_locals: BitVector::new(mir.local_decls.len()),
+ seen_assigned: BitVector::new(mir.local_decls.len())
}
}
location: Location) {
debug!("visit_assign(block={:?}, lvalue={:?}, rvalue={:?})", block, lvalue, rvalue);
- if let Some(index) = self.mir.local_index(lvalue) {
+ if let mir::Lvalue::Local(index) = *lvalue {
self.mark_assigned(index);
if !rvalue::rvalue_creates_operand(self.mir, self.bcx, rvalue) {
self.mark_as_lvalue(index);
// Allow uses of projections of immediate pair fields.
if let mir::Lvalue::Projection(ref proj) = *lvalue {
- if self.mir.local_index(&proj.base).is_some() {
+ if let mir::Lvalue::Local(_) = proj.base {
let ty = proj.base.ty(self.mir, self.bcx.tcx());
let ty = self.bcx.monomorphize(&ty.to_ty(self.bcx.tcx()));
}
}
- if let Some(index) = self.mir.local_index(lvalue) {
+ if let mir::Lvalue::Local(index) = *lvalue {
match context {
LvalueContext::Call => {
self.mark_assigned(index);
}
let llval = if let Some(cast_ty) = ret.cast {
- let index = mir.local_index(&mir::Lvalue::ReturnPointer).unwrap();
- let op = match self.locals[index] {
+ let op = match self.locals[mir::RETURN_POINTER] {
LocalRef::Operand(Some(op)) => op,
LocalRef::Operand(None) => bug!("use of return before def"),
LocalRef::Lvalue(tr_lvalue) => {
}
load
} else {
- let op = self.trans_consume(&bcx, &mir::Lvalue::ReturnPointer);
+ let op = self.trans_consume(&bcx, &mir::Lvalue::Local(mir::RETURN_POINTER));
op.pack_if_pair(&bcx).immediate()
};
bcx.ret(llval);
if fn_ret_ty.is_ignore() {
return ReturnDest::Nothing;
}
- let dest = if let Some(index) = self.mir.local_index(dest) {
+ let dest = if let mir::Lvalue::Local(index) = *dest {
let ret_ty = self.monomorphized_lvalue_ty(dest);
match self.locals[index] {
LocalRef::Lvalue(dest) => dest,
fn new(ccx: &'a CrateContext<'a, 'tcx>,
mir: &'a mir::Mir<'tcx>,
substs: &'tcx Substs<'tcx>,
- args: IndexVec<mir::Arg, Const<'tcx>>)
+ args: IndexVec<mir::Local, Const<'tcx>>)
-> MirConstContext<'a, 'tcx> {
let mut context = MirConstContext {
ccx: ccx,
mir: mir,
substs: substs,
- locals: (0..mir.count_locals()).map(|_| None).collect(),
+ locals: (0..mir.local_decls.len()).map(|_| None).collect(),
};
for (i, arg) in args.into_iter().enumerate() {
- let index = mir.local_index(&mir::Lvalue::Arg(mir::Arg::new(i))).unwrap();
+ // Locals after local 0 are the function arguments
+ let index = mir::Local::new(i + 1);
context.locals[index] = Some(arg);
}
context
fn trans_def(ccx: &'a CrateContext<'a, 'tcx>,
mut instance: Instance<'tcx>,
- args: IndexVec<mir::Arg, Const<'tcx>>)
+ args: IndexVec<mir::Local, Const<'tcx>>)
-> Result<Const<'tcx>, ConstEvalErr> {
// Try to resolve associated constants.
if let Some(trait_id) = ccx.tcx().trait_of_item(instance.def) {
mir::TerminatorKind::Goto { target } => target,
mir::TerminatorKind::Return => {
failure?;
- let index = self.mir.local_index(&mir::Lvalue::ReturnPointer).unwrap();
- return Ok(self.locals[index].unwrap_or_else(|| {
+ return Ok(self.locals[mir::RETURN_POINTER].unwrap_or_else(|| {
span_bug!(span, "no returned value in constant");
}));
}
}
fn store(&mut self, dest: &mir::Lvalue<'tcx>, value: Const<'tcx>, span: Span) {
- if let Some(index) = self.mir.local_index(dest) {
+ if let mir::Lvalue::Local(index) = *dest {
self.locals[index] = Some(value);
} else {
span_bug!(span, "assignment to {:?} in constant", dest);
-> Result<ConstLvalue<'tcx>, ConstEvalErr> {
let tcx = self.ccx.tcx();
- if let Some(index) = self.mir.local_index(lvalue) {
+ if let mir::Lvalue::Local(index) = *lvalue {
return Ok(self.locals[index].unwrap_or_else(|| {
span_bug!(span, "{:?} not initialized", lvalue)
}).as_lvalue());
}
let lvalue = match *lvalue {
- mir::Lvalue::Var(_) |
- mir::Lvalue::Temp(_) |
- mir::Lvalue::Arg(_) |
- mir::Lvalue::ReturnPointer => bug!(), // handled above
+ mir::Lvalue::Local(_) => bug!(), // handled above
mir::Lvalue::Static(def_id) => {
ConstLvalue {
base: Base::Static(consts::get_static(self.ccx, def_id)),
}
match *kind {
- mir::AggregateKind::Vec => {
+ mir::AggregateKind::Array => {
self.const_array(dest_ty, &fields)
}
mir::AggregateKind::Adt(..) |
let ccx = bcx.ccx();
let tcx = bcx.tcx();
- if let Some(index) = self.mir.local_index(lvalue) {
+ if let mir::Lvalue::Local(index) = *lvalue {
match self.locals[index] {
LocalRef::Lvalue(lvalue) => {
return lvalue;
}
let result = match *lvalue {
- mir::Lvalue::Var(_) |
- mir::Lvalue::Temp(_) |
- mir::Lvalue::Arg(_) |
- mir::Lvalue::ReturnPointer => bug!(), // handled above
+ mir::Lvalue::Local(_) => bug!(), // handled above
mir::Lvalue::Static(def_id) => {
let const_ty = self.monomorphized_lvalue_ty(lvalue);
LvalueRef::new_sized(consts::get_static(ccx, def_id),
lvalue: &mir::Lvalue<'tcx>, f: F) -> U
where F: FnOnce(&mut Self, LvalueRef<'tcx>) -> U
{
- if let Some(index) = self.mir.local_index(lvalue) {
+ if let mir::Lvalue::Local(index) = *lvalue {
match self.locals[index] {
LocalRef::Lvalue(lvalue) => f(self, lvalue),
LocalRef::Operand(None) => {
// Allocate variable and temp allocas
mircx.locals = {
let args = arg_local_refs(&bcx, &mir, &mircx.scopes, &lvalue_locals);
- let vars = mir.var_decls.iter().enumerate().map(|(i, decl)| {
+
+ let mut allocate_local = |local| {
+ let decl = &mir.local_decls[local];
let ty = bcx.monomorphize(&decl.ty);
- let debug_scope = mircx.scopes[decl.source_info.scope];
- let dbg = debug_scope.is_valid() && bcx.sess().opts.debuginfo == FullDebugInfo;
- let local = mir.local_index(&mir::Lvalue::Var(mir::Var::new(i))).unwrap();
- if !lvalue_locals.contains(local.index()) && !dbg {
- return LocalRef::new_operand(bcx.ccx(), ty);
- }
+ if let Some(name) = decl.name {
+ // User variable
+ let source_info = decl.source_info.unwrap();
+ let debug_scope = mircx.scopes[source_info.scope];
+ let dbg = debug_scope.is_valid() && bcx.sess().opts.debuginfo == FullDebugInfo;
- let lvalue = LvalueRef::alloca(&bcx, ty, &decl.name.as_str());
- if dbg {
- let dbg_loc = mircx.debug_loc(decl.source_info);
- if let DebugLoc::ScopeAt(scope, span) = dbg_loc {
- bcx.with_block(|bcx| {
- declare_local(bcx, decl.name, ty, scope,
- VariableAccess::DirectVariable { alloca: lvalue.llval },
- VariableKind::LocalVariable, span);
- });
- } else {
- panic!("Unexpected");
+ if !lvalue_locals.contains(local.index()) && !dbg {
+ debug!("alloc: {:?} ({}) -> operand", local, name);
+ return LocalRef::new_operand(bcx.ccx(), ty);
}
- }
- LocalRef::Lvalue(lvalue)
- });
-
- let locals = mir.temp_decls.iter().enumerate().map(|(i, decl)| {
- (mir::Lvalue::Temp(mir::Temp::new(i)), decl.ty)
- }).chain(iter::once((mir::Lvalue::ReturnPointer, mir.return_ty)));
-
- args.into_iter().chain(vars).chain(locals.map(|(lvalue, ty)| {
- let ty = bcx.monomorphize(&ty);
- let local = mir.local_index(&lvalue).unwrap();
- if lvalue == mir::Lvalue::ReturnPointer && fcx.fn_ty.ret.is_indirect() {
- let llretptr = llvm::get_param(fcx.llfn, 0);
- LocalRef::Lvalue(LvalueRef::new_sized(llretptr, LvalueTy::from_ty(ty)))
- } else if lvalue_locals.contains(local.index()) {
- LocalRef::Lvalue(LvalueRef::alloca(&bcx, ty, &format!("{:?}", lvalue)))
+
+ debug!("alloc: {:?} ({}) -> lvalue", local, name);
+ let lvalue = LvalueRef::alloca(&bcx, ty, &name.as_str());
+ if dbg {
+ let dbg_loc = mircx.debug_loc(source_info);
+ if let DebugLoc::ScopeAt(scope, span) = dbg_loc {
+ bcx.with_block(|bcx| {
+ declare_local(bcx, name, ty, scope,
+ VariableAccess::DirectVariable { alloca: lvalue.llval },
+ VariableKind::LocalVariable, span);
+ });
+ } else {
+ panic!("Unexpected");
+ }
+ }
+ LocalRef::Lvalue(lvalue)
} else {
- // If this is an immediate local, we do not create an
- // alloca in advance. Instead we wait until we see the
- // definition and update the operand there.
- LocalRef::new_operand(bcx.ccx(), ty)
+ // Temporary or return pointer
+ if local == mir::RETURN_POINTER && fcx.fn_ty.ret.is_indirect() {
+ debug!("alloc: {:?} (return pointer) -> lvalue", local);
+ let llretptr = llvm::get_param(fcx.llfn, 0);
+ LocalRef::Lvalue(LvalueRef::new_sized(llretptr, LvalueTy::from_ty(ty)))
+ } else if lvalue_locals.contains(local.index()) {
+ debug!("alloc: {:?} -> lvalue", local);
+ LocalRef::Lvalue(LvalueRef::alloca(&bcx, ty, &format!("{:?}", local)))
+ } else {
+ // If this is an immediate local, we do not create an
+ // alloca in advance. Instead we wait until we see the
+ // definition and update the operand there.
+ debug!("alloc: {:?} -> operand", local);
+ LocalRef::new_operand(bcx.ccx(), ty)
+ }
}
- })).collect()
+ };
+
+ let retptr = allocate_local(mir::RETURN_POINTER);
+ iter::once(retptr)
+ .chain(args.into_iter())
+ .chain(mir.vars_and_temps_iter().map(allocate_local))
+ .collect()
};
// Branch to the START block
None
};
- mir.arg_decls.iter().enumerate().map(|(arg_index, arg_decl)| {
+ mir.args_iter().enumerate().map(|(arg_index, local)| {
+ let arg_decl = &mir.local_decls[local];
let arg_ty = bcx.monomorphize(&arg_decl.ty);
- let local = mir.local_index(&mir::Lvalue::Arg(mir::Arg::new(arg_index))).unwrap();
- if arg_decl.spread {
+
+ if Some(local) == mir.spread_arg {
// This argument (e.g. the last argument in the "rust-call" ABI)
// is a tuple that was spread at the ABI level and now we have
// to reconstruct it into a tuple local variable, from multiple
bcx.with_block(|bcx| arg_scope.map(|scope| {
// Is this a regular argument?
if arg_index > 0 || mir.upvar_decls.is_empty() {
- declare_local(bcx, arg_decl.debug_name, arg_ty, scope,
- VariableAccess::DirectVariable { alloca: llval },
+ declare_local(bcx, arg_decl.name.unwrap_or(keywords::Invalid.name()), arg_ty,
+ scope, VariableAccess::DirectVariable { alloca: llval },
VariableKind::ArgumentVariable(arg_index + 1),
bcx.fcx().span.unwrap_or(DUMMY_SP));
return;
// watch out for locals that do not have an
// alloca; they are handled somewhat differently
- if let Some(index) = self.mir.local_index(lvalue) {
+ if let mir::Lvalue::Local(index) = *lvalue {
match self.locals[index] {
LocalRef::Operand(Some(o)) => {
return o;
// Moves out of pair fields are trivial.
if let &mir::Lvalue::Projection(ref proj) = lvalue {
- if let Some(index) = self.mir.local_index(&proj.base) {
+ if let mir::Lvalue::Local(index) = proj.base {
if let LocalRef::Operand(Some(o)) = self.locals[index] {
match (o.val, &proj.elem) {
(OperandValue::Pair(a, b),
debug_loc.apply(bcx.fcx());
match statement.kind {
mir::StatementKind::Assign(ref lvalue, ref rvalue) => {
- if let Some(index) = self.mir.local_index(lvalue) {
+ if let mir::Lvalue::Local(index) = *lvalue {
match self.locals[index] {
LocalRef::Lvalue(tr_dest) => {
self.trans_rvalue(bcx, tr_dest, rvalue, debug_loc)
lvalue: &mir::Lvalue<'tcx>,
intrinsic: base::Lifetime)
-> BlockAndBuilder<'bcx, 'tcx> {
- if let Some(index) = self.mir.local_index(lvalue) {
+ if let mir::Lvalue::Local(index) = *lvalue {
if let LocalRef::Lvalue(tr_lval) = self.locals[index] {
intrinsic.call(&bcx, tr_lval.llval);
}
// For now, require that parenthetical notation be used
// only with `Fn()` etc.
if !self.tcx().sess.features.borrow().unboxed_closures && trait_def.paren_sugar {
- emit_feature_err(&self.tcx().sess.parse_sess.span_diagnostic,
+ emit_feature_err(&self.tcx().sess.parse_sess,
"unboxed_closures", span, GateIssue::Language,
"\
the precise format of `Fn`-family traits' \
// For now, require that parenthetical notation be used
// only with `Fn()` etc.
if !self.tcx().sess.features.borrow().unboxed_closures && !trait_def.paren_sugar {
- emit_feature_err(&self.tcx().sess.parse_sess.span_diagnostic,
+ emit_feature_err(&self.tcx().sess.parse_sess,
"unboxed_closures", span, GateIssue::Language,
"\
parenthetical notation is only stable when used with `Fn`-family traits");
-> Result<ty::PolyTraitRef<'tcx>, ErrorReported>
{
if bounds.is_empty() {
- span_err!(self.tcx().sess, span, E0220,
+ struct_span_err!(self.tcx().sess, span, E0220,
"associated type `{}` not found for `{}`",
assoc_name,
- ty_param_name);
+ ty_param_name)
+ .span_label(span, &format!("associated type `{}` not found", assoc_name))
+ .emit();
return Err(ErrorReported);
}
}
let result_ty = match ast_ty.node {
- hir::TyVec(ref ty) => {
+ hir::TySlice(ref ty) => {
tcx.mk_slice(self.ast_ty_to_ty(rscope, &ty))
}
hir::TyObjectSum(ref ty, ref bounds) => {
ty
}
- hir::TyFixedLengthVec(ref ty, ref e) => {
+ hir::TyArray(ref ty, ref e) => {
if let Ok(length) = eval_length(tcx.global_tcx(), &e, "array length") {
tcx.mk_array(self.ast_ty_to_ty(rscope, &ty), length)
} else {
tcx.types.err
}
}
- PatKind::Vec(ref before, ref slice, ref after) => {
+ PatKind::Slice(ref before, ref slice, ref after) => {
let expected_ty = self.structurally_resolved_type(pat.span, expected);
let (inner_ty, slice_ty) = match expected_ty.sty {
ty::TyArray(inner_ty, size) => {
for &Spanned { node: ref field, span } in fields {
let field_ty = match used_fields.entry(field.name) {
Occupied(occupied) => {
- let mut err = struct_span_err!(tcx.sess, span, E0025,
- "field `{}` bound multiple times \
- in the pattern",
- field.name);
- span_note!(&mut err, *occupied.get(),
- "field `{}` previously bound here",
- field.name);
- err.emit();
+ struct_span_err!(tcx.sess, span, E0025,
+ "field `{}` bound multiple times \
+ in the pattern",
+ field.name)
+ .span_label(span,
+ &format!("multiple uses of `{}` in pattern", field.name))
+ .span_label(*occupied.get(), &format!("first use of `{}`", field.name))
+ .emit();
tcx.types.err
}
Vacant(vacant) => {
expected: Expectation<'tcx>) -> Ty<'tcx>
{
let original_callee_ty = self.check_expr(callee_expr);
+ let expr_ty = self.structurally_resolved_type(call_expr.span, original_callee_ty);
- let mut autoderef = self.autoderef(callee_expr.span, original_callee_ty);
+ let mut autoderef = self.autoderef(callee_expr.span, expr_ty);
let result = autoderef.by_ref().flat_map(|(adj_ty, idx)| {
self.try_overloaded_call_step(call_expr, callee_expr, adj_ty, idx)
}).next();
}
if impl_m.fty.sig.0.inputs.len() != trait_m.fty.sig.0.inputs.len() {
- span_err!(tcx.sess, impl_m_span, E0050,
+ let trait_number_args = trait_m.fty.sig.0.inputs.len();
+ let impl_number_args = impl_m.fty.sig.0.inputs.len();
+ let trait_m_node_id = tcx.map.as_local_node_id(trait_m.def_id);
+ let trait_span = if let Some(trait_id) = trait_m_node_id {
+ match tcx.map.expect_trait_item(trait_id).node {
+ TraitItem_::MethodTraitItem(ref trait_m_sig, _) => {
+ if let Some(arg) = trait_m_sig.decl.inputs.get(
+ if trait_number_args > 0 {
+ trait_number_args - 1
+ } else {
+ 0
+ }) {
+ Some(arg.pat.span)
+ } else {
+ trait_item_span
+ }
+ }
+ _ => bug!("{:?} is not a method", impl_m)
+ }
+ } else {
+ trait_item_span
+ };
+ let impl_m_node_id = tcx.map.as_local_node_id(impl_m.def_id).unwrap();
+ let impl_span = match tcx.map.expect_impl_item(impl_m_node_id).node {
+ ImplItemKind::Method(ref impl_m_sig, _) => {
+ if let Some(arg) = impl_m_sig.decl.inputs.get(
+ if impl_number_args > 0 {
+ impl_number_args - 1
+ } else {
+ 0
+ }) {
+ arg.pat.span
+ } else {
+ impl_m_span
+ }
+ }
+ _ => bug!("{:?} is not a method", impl_m)
+ };
+ let mut err = struct_span_err!(tcx.sess, impl_span, E0050,
"method `{}` has {} parameter{} \
but the declaration in trait `{}` has {}",
trait_m.name,
- impl_m.fty.sig.0.inputs.len(),
- if impl_m.fty.sig.0.inputs.len() == 1 {""} else {"s"},
+ impl_number_args,
+ if impl_number_args == 1 {""} else {"s"},
tcx.item_path_str(trait_m.def_id),
- trait_m.fty.sig.0.inputs.len());
+ trait_number_args);
+ if let Some(trait_span) = trait_span {
+ err.span_label(trait_span,
+ &format!("trait requires {}",
+ &if trait_number_args != 1 {
+ format!("{} parameters", trait_number_args)
+ } else {
+ format!("{} parameter", trait_number_args)
+ }));
+ }
+ err.span_label(impl_span,
+ &format!("expected {}, found {}",
+ &if trait_number_args != 1 {
+ format!("{} parameters", trait_number_args)
+ } else {
+ format!("{} parameter", trait_number_args)
+ },
+ impl_number_args));
+ err.emit();
return;
}
span_err!(tcx.sess, it.span, E0444,
"platform-specific intrinsic has invalid number of \
arguments: found {}, expected {}",
- intr.inputs.len(), sig.inputs.len());
+ sig.inputs.len(), intr.inputs.len());
return
}
let input_pairs = intr.inputs.iter().zip(&sig.inputs);
if num_supplied_types > 0 && num_supplied_types != num_method_types {
if num_method_types == 0 {
- span_err!(self.tcx.sess, self.span, E0035,
- "does not take type parameters");
+ struct_span_err!(self.tcx.sess, self.span, E0035,
+ "does not take type parameters")
+ .span_label(self.span, &"called with unneeded type parameters")
+ .emit();
} else {
- span_err!(self.tcx.sess, self.span, E0036,
+ struct_span_err!(self.tcx.sess, self.span, E0036,
"incorrect number of type parameters given for this method: \
expected {}, found {}",
- num_method_types, num_supplied_types);
+ num_method_types, num_supplied_types)
+ .span_label(self.span,
+ &format!("Passed {} type argument{}, expected {}",
+ num_supplied_types,
+ if num_supplied_types != 1 {
+ "s"
+ } else {
+ ""
+ },
+ num_method_types))
+ .emit();
}
supplied_method_types = vec![self.tcx.types.err; num_method_types];
}
fn visit_ty(&mut self, t: &'tcx hir::Ty) {
match t.node {
- hir::TyFixedLengthVec(_, ref expr) => {
+ hir::TyArray(_, ref expr) => {
check_const_with_type(self.ccx, &expr, self.ccx.tcx.types.usize, expr.id);
}
_ => {}
// need to record the type for that node
fn visit_ty(&mut self, t: &'gcx hir::Ty) {
match t.node {
- hir::TyFixedLengthVec(ref ty, ref count_expr) => {
+ hir::TyArray(ref ty, ref count_expr) => {
self.visit_ty(&ty);
self.fcx.check_expr_with_hint(&count_expr, self.fcx.tcx.types.usize);
}
match self.locals.borrow().get(&nid) {
Some(&t) => t,
None => {
- span_err!(self.tcx.sess, span, E0513,
- "no type for local variable {}",
- nid);
+ struct_span_err!(self.tcx.sess, span, E0513,
+ "no type for local variable {}",
+ self.tcx.map.node_to_string(nid))
+ .span_label(span, &"no type for variable")
+ .emit();
self.tcx.types.err
}
}
if let Some((def_id, variant)) = variant {
if variant.kind == ty::VariantKind::Tuple &&
!self.tcx.sess.features.borrow().relaxed_adts {
- emit_feature_err(&self.tcx.sess.parse_sess.span_diagnostic,
+ emit_feature_err(&self.tcx.sess.parse_sess,
"relaxed_adts", span, GateIssue::Language,
"tuple structs and variants in struct patterns are unstable");
}
self.check_method_call(expr, name, &args[..], &tps[..], expected, lvalue_pref)
}
hir::ExprCast(ref e, ref t) => {
- if let hir::TyFixedLengthVec(_, ref count_expr) = t.node {
+ if let hir::TyArray(_, ref count_expr) = t.node {
self.check_expr_with_hint(&count_expr, tcx.types.usize);
}
self.check_expr_eq_type(&e, typ);
typ
}
- hir::ExprVec(ref args) => {
+ hir::ExprArray(ref args) => {
let uty = expected.to_option(self).and_then(|uty| {
match uty.sty {
ty::TyArray(ty, _) | ty::TySlice(ty) => Some(ty),
fn visit_ty(&mut self, t: &hir::Ty) {
match t.node {
- hir::TyFixedLengthVec(ref ty, ref count_expr) => {
+ hir::TyArray(ref ty, ref count_expr) => {
self.visit_ty(&ty);
write_ty_to_tcx(self.fcx.ccx, count_expr.id, self.tcx().types.usize);
}
use rustc::ty::subst::Subst;
use rustc::ty::{self, TyCtxt, TypeFoldable};
use rustc::traits::{self, Reveal};
-use rustc::ty::{ParameterEnvironment};
+use rustc::ty::ParameterEnvironment;
use rustc::ty::{Ty, TyBool, TyChar, TyError};
use rustc::ty::{TyParam, TyRawPtr};
use rustc::ty::{TyRef, TyAdt, TyTrait, TyNever, TyTuple};
mod overlap;
mod unsafety;
-struct CoherenceChecker<'a, 'gcx: 'a+'tcx, 'tcx: 'a> {
+struct CoherenceChecker<'a, 'gcx: 'a + 'tcx, 'tcx: 'a> {
crate_context: &'a CrateCtxt<'a, 'gcx>,
inference_context: InferCtxt<'a, 'gcx, 'tcx>,
}
-struct CoherenceCheckVisitor<'a, 'gcx: 'a+'tcx, 'tcx: 'a> {
- cc: &'a CoherenceChecker<'a, 'gcx, 'tcx>
+struct CoherenceCheckVisitor<'a, 'gcx: 'a + 'tcx, 'tcx: 'a> {
+ cc: &'a CoherenceChecker<'a, 'gcx, 'tcx>,
}
impl<'a, 'gcx, 'tcx, 'v> intravisit::Visitor<'v> for CoherenceCheckVisitor<'a, 'gcx, 'tcx> {
}
impl<'a, 'gcx, 'tcx> CoherenceChecker<'a, 'gcx, 'tcx> {
-
// Returns the def ID of the base type, if there is one.
fn get_base_type_def_id(&self, span: Span, ty: Ty<'tcx>) -> Option<DefId> {
match ty.sty {
- TyAdt(def, _) => {
- Some(def.did)
- }
+ TyAdt(def, _) => Some(def.did),
- TyTrait(ref t) => {
- Some(t.principal.def_id())
- }
+ TyTrait(ref t) => Some(t.principal.def_id()),
- TyBox(_) => {
- self.inference_context.tcx.lang_items.owned_box()
- }
+ TyBox(_) => self.inference_context.tcx.lang_items.owned_box(),
- TyBool | TyChar | TyInt(..) | TyUint(..) | TyFloat(..) |
- TyStr | TyArray(..) | TySlice(..) | TyFnDef(..) | TyFnPtr(_) |
- TyTuple(..) | TyParam(..) | TyError | TyNever |
- TyRawPtr(_) | TyRef(..) | TyProjection(..) => {
- None
- }
+ TyBool | TyChar | TyInt(..) | TyUint(..) | TyFloat(..) | TyStr | TyArray(..) |
+ TySlice(..) | TyFnDef(..) | TyFnPtr(_) | TyTuple(..) | TyParam(..) | TyError |
+ TyNever | TyRawPtr(_) | TyRef(..) | TyProjection(..) => None,
TyInfer(..) | TyClosure(..) | TyAnon(..) => {
// `ty` comes from a user declaration so we should only expect types
// that the user can type
- span_bug!(
- span,
- "coherence encountered unexpected type searching for base type: {}",
- ty);
+ span_bug!(span,
+ "coherence encountered unexpected type searching for base type: {}",
+ ty);
}
}
}
// Check implementations and traits. This populates the tables
// containing the inherent methods and extension methods. It also
// builds up the trait inheritance table.
- self.crate_context.tcx.visit_all_items_in_krate(
- DepNode::CoherenceCheckImpl,
- &mut CoherenceCheckVisitor { cc: self });
+ self.crate_context.tcx.visit_all_items_in_krate(DepNode::CoherenceCheckImpl,
+ &mut CoherenceCheckVisitor { cc: self });
// Populate the table of destructors. It might seem a bit strange to
// do this here, but it's actually the most convenient place, since
fn add_trait_impl(&self, impl_trait_ref: ty::TraitRef<'gcx>, impl_def_id: DefId) {
debug!("add_trait_impl: impl_trait_ref={:?} impl_def_id={:?}",
- impl_trait_ref, impl_def_id);
+ impl_trait_ref,
+ impl_def_id);
let trait_def = self.crate_context.tcx.lookup_trait_def(impl_trait_ref.def_id);
trait_def.record_local_impl(self.crate_context.tcx, impl_def_id, impl_trait_ref);
}
fn create_impl_from_item(&self, item: &Item) -> Vec<DefId> {
match item.node {
ItemImpl(.., ref impl_items) => {
- impl_items.iter().map(|impl_item| {
- self.crate_context.tcx.map.local_def_id(impl_item.id)
- }).collect()
+ impl_items.iter()
+ .map(|impl_item| self.crate_context.tcx.map.local_def_id(impl_item.id))
+ .collect()
}
_ => {
span_bug!(item.span, "can't convert a non-impl to an impl");
}
}
- //
// Destructors
//
fn populate_destructors(&self) {
let tcx = self.crate_context.tcx;
let drop_trait = match tcx.lang_items.drop_trait() {
- Some(id) => id, None => { return }
+ Some(id) => id,
+ None => return,
};
tcx.populate_implementations_for_trait_if_necessary(drop_trait);
let drop_trait = tcx.lookup_trait_def(drop_trait);
match tcx.map.find(impl_node_id) {
Some(hir_map::NodeItem(item)) => {
let span = match item.node {
- ItemImpl(.., ref ty, _) => {
- ty.span
- },
- _ => item.span
+ ItemImpl(.., ref ty, _) => ty.span,
+ _ => item.span,
};
- struct_span_err!(tcx.sess, span, E0120,
- "the Drop trait may only be implemented on structures")
+ struct_span_err!(tcx.sess,
+ span,
+ E0120,
+ "the Drop trait may only be implemented on \
+ structures")
.span_label(span,
&format!("implementing Drop requires a struct"))
.emit();
let copy_trait = tcx.lookup_trait_def(copy_trait);
copy_trait.for_each_impl(tcx, |impl_did| {
- debug!("check_implementations_of_copy: impl_did={:?}",
- impl_did);
+ debug!("check_implementations_of_copy: impl_did={:?}", impl_did);
let impl_node_id = if let Some(n) = tcx.map.as_local_node_id(impl_did) {
n
} else {
debug!("check_implementations_of_copy(): impl not in this \
crate");
- return
+ return;
};
let self_type = tcx.lookup_item_type(impl_did);
match param_env.can_type_implement_copy(tcx, self_type, span) {
Ok(()) => {}
Err(CopyImplementationError::InfrigingField(name)) => {
- struct_span_err!(tcx.sess, span, E0204,
- "the trait `Copy` may not be implemented for \
- this type")
- .span_label(span, &format!(
- "field `{}` does not implement `Copy`", name)
- )
- .emit()
-
+ struct_span_err!(tcx.sess,
+ span,
+ E0204,
+ "the trait `Copy` may not be implemented for this type")
+ .span_label(span, &format!("field `{}` does not implement `Copy`", name))
+ .emit()
}
Err(CopyImplementationError::InfrigingVariant(name)) => {
let item = tcx.map.expect_item(impl_node_id);
span
};
- struct_span_err!(tcx.sess, span, E0205,
+ struct_span_err!(tcx.sess,
+ span,
+ E0205,
"the trait `Copy` may not be implemented for this type")
- .span_label(span, &format!("variant `{}` does not implement `Copy`",
- name))
+ .span_label(span,
+ &format!("variant `{}` does not implement `Copy`", name))
.emit()
}
Err(CopyImplementationError::NotAnAdt) => {
span
};
- struct_span_err!(tcx.sess, span, E0206,
+ struct_span_err!(tcx.sess,
+ span,
+ E0206,
"the trait `Copy` may not be implemented for this type")
.span_label(span, &format!("type is not a structure or enumeration"))
.emit();
}
Err(CopyImplementationError::HasDestructor) => {
- struct_span_err!(tcx.sess, span, E0184,
- "the trait `Copy` may not be implemented for this type; \
- the type has a destructor")
+ struct_span_err!(tcx.sess,
+ span,
+ E0184,
+ "the trait `Copy` may not be implemented for this type; the \
+ type has a destructor")
.span_label(span, &format!("Copy not allowed on types with destructors"))
.emit();
}
let trait_ref = self.crate_context.tcx.impl_trait_ref(impl_did).unwrap();
let target = trait_ref.substs.type_at(1);
debug!("check_implementations_of_coerce_unsized: {:?} -> {:?} (bound)",
- source, target);
+ source,
+ target);
let span = tcx.map.span(impl_node_id);
let param_env = ParameterEnvironment::for_item(tcx, impl_node_id);
assert!(!source.has_escaping_regions());
debug!("check_implementations_of_coerce_unsized: {:?} -> {:?} (free)",
- source, target);
+ source,
+ target);
tcx.infer_ctxt(None, Some(param_env), Reveal::ExactMatch).enter(|infcx| {
let origin = TypeOrigin::Misc(span);
- let check_mutbl = |mt_a: ty::TypeAndMut<'gcx>, mt_b: ty::TypeAndMut<'gcx>,
+ let check_mutbl = |mt_a: ty::TypeAndMut<'gcx>,
+ mt_b: ty::TypeAndMut<'gcx>,
mk_ptr: &Fn(Ty<'gcx>) -> Ty<'gcx>| {
if (mt_a.mutbl, mt_b.mutbl) == (hir::MutImmutable, hir::MutMutable) {
- infcx.report_mismatched_types(origin, mk_ptr(mt_b.ty),
- target, ty::error::TypeError::Mutability);
+ infcx.report_mismatched_types(origin,
+ mk_ptr(mt_b.ty),
+ target,
+ ty::error::TypeError::Mutability);
}
(mt_a.ty, mt_b.ty, unsize_trait, None)
};
}
(&ty::TyAdt(def_a, substs_a), &ty::TyAdt(def_b, substs_b))
- if def_a.is_struct() && def_b.is_struct() => {
+ if def_a.is_struct() && def_b.is_struct() => {
if def_a != def_b {
let source_path = tcx.item_path_str(def_a.did);
let target_path = tcx.item_path_str(def_b.did);
- span_err!(tcx.sess, span, E0377,
+ span_err!(tcx.sess,
+ span,
+ E0377,
"the trait `CoerceUnsized` may only be implemented \
for a coercion between structures with the same \
definition; expected {}, found {}",
- source_path, target_path);
+ source_path,
+ target_path);
return;
}
let fields = &def_a.struct_variant().fields;
- let diff_fields = fields.iter().enumerate().filter_map(|(i, f)| {
- let (a, b) = (f.ty(tcx, substs_a), f.ty(tcx, substs_b));
-
- if f.unsubst_ty().is_phantom_data() {
- // Ignore PhantomData fields
- None
- } else if infcx.sub_types(false, origin, b, a).is_ok() {
- // Ignore fields that aren't significantly changed
- None
- } else {
- // Collect up all fields that were significantly changed
- // i.e. those that contain T in coerce_unsized T -> U
- Some((i, a, b))
- }
- }).collect::<Vec<_>>();
+ let diff_fields = fields.iter()
+ .enumerate()
+ .filter_map(|(i, f)| {
+ let (a, b) = (f.ty(tcx, substs_a), f.ty(tcx, substs_b));
+
+ if f.unsubst_ty().is_phantom_data() {
+ // Ignore PhantomData fields
+ None
+ } else if infcx.sub_types(false, origin, b, a).is_ok() {
+ // Ignore fields that aren't significantly changed
+ None
+ } else {
+ // Collect up all fields that were significantly changed
+ // i.e. those that contain T in coerce_unsized T -> U
+ Some((i, a, b))
+ }
+ })
+ .collect::<Vec<_>>();
if diff_fields.is_empty() {
- span_err!(tcx.sess, span, E0374,
+ span_err!(tcx.sess,
+ span,
+ E0374,
"the trait `CoerceUnsized` may only be implemented \
for a coercion between structures with one field \
being coerced, none found");
tcx.map.span(impl_node_id)
};
- let mut err = struct_span_err!(tcx.sess, span, E0375,
- "implementing the trait `CoerceUnsized` \
- requires multiple coercions");
+ let mut err = struct_span_err!(tcx.sess,
+ span,
+ E0375,
+ "implementing the trait \
+ `CoerceUnsized` requires multiple \
+ coercions");
err.note("`CoerceUnsized` may only be implemented for \
a coercion between structures with one field being coerced");
err.note(&format!("currently, {} fields need coercions: {}",
- diff_fields.len(),
- diff_fields.iter().map(|&(i, a, b)| {
- format!("{} ({} to {})", fields[i].name, a, b)
- }).collect::<Vec<_>>().join(", ") ));
+ diff_fields.len(),
+ diff_fields.iter()
+ .map(|&(i, a, b)| {
+ format!("{} ({} to {})", fields[i].name, a, b)
+ })
+ .collect::<Vec<_>>()
+ .join(", ")));
err.span_label(span, &format!("requires multiple coercions"));
err.emit();
return;
}
_ => {
- span_err!(tcx.sess, span, E0376,
+ span_err!(tcx.sess,
+ span,
+ E0376,
"the trait `CoerceUnsized` may only be implemented \
for a coercion between structures");
return;
// Register an obligation for `A: Trait<B>`.
let cause = traits::ObligationCause::misc(span, impl_node_id);
- let predicate = tcx.predicate_for_trait_def(cause, trait_def_id, 0,
- source, &[target]);
+ let predicate =
+ tcx.predicate_for_trait_def(cause, trait_def_id, 0, source, &[target]);
fulfill_cx.register_predicate_obligation(&infcx, predicate);
// Check that all transitive obligations are satisfied.
// Finally, resolve all regions.
let mut free_regions = FreeRegionMap::new();
- free_regions.relate_free_regions_from_predicates(
- &infcx.parameter_environment.caller_bounds);
+ free_regions.relate_free_regions_from_predicates(&infcx.parameter_environment
+ .caller_bounds);
infcx.resolve_regions_and_report_errors(&free_regions, impl_node_id);
if let Some(kind) = kind {
fn enforce_trait_manually_implementable(tcx: TyCtxt, sp: Span, trait_def_id: DefId) {
if tcx.sess.features.borrow().unboxed_closures {
// the feature gate allows all of them
- return
+ return;
}
let did = Some(trait_def_id);
let li = &tcx.lang_items;
} else if did == li.fn_once_trait() {
"FnOnce"
} else {
- return // everything OK
+ return; // everything OK
};
let mut err = struct_span_err!(tcx.sess,
sp,
E0183,
"manual implementations of `{}` are experimental",
trait_name);
- help!(&mut err, "add `#![feature(unboxed_closures)]` to the crate attributes to enable");
+ help!(&mut err,
+ "add `#![feature(unboxed_closures)]` to the crate attributes to enable");
err.emit();
}
let _task = ccx.tcx.dep_graph.in_task(DepNode::Coherence);
ccx.tcx.infer_ctxt(None, None, Reveal::ExactMatch).enter(|infcx| {
CoherenceChecker {
- crate_context: ccx,
- inference_context: infcx,
- }.check();
+ crate_context: ccx,
+ inference_context: infcx,
+ }
+ .check();
});
unsafety::check(ccx.tcx);
orphan::check(ccx.tcx);
tcx.visit_all_items_in_krate(DepNode::CoherenceOrphanCheck, &mut orphan);
}
-struct OrphanChecker<'cx, 'tcx:'cx> {
- tcx: TyCtxt<'cx, 'tcx, 'tcx>
+struct OrphanChecker<'cx, 'tcx: 'cx> {
+ tcx: TyCtxt<'cx, 'tcx, 'tcx>,
}
impl<'cx, 'tcx> OrphanChecker<'cx, 'tcx> {
fn check_def_id(&self, item: &hir::Item, def_id: DefId) {
if def_id.krate != LOCAL_CRATE {
- struct_span_err!(self.tcx.sess, item.span, E0116,
- "cannot define inherent `impl` for a type outside of the \
- crate where the type is defined")
- .span_label(item.span, &format!("impl for type defined outside of crate."))
+ struct_span_err!(self.tcx.sess,
+ item.span,
+ E0116,
+ "cannot define inherent `impl` for a type outside of the crate \
+ where the type is defined")
+ .span_label(item.span,
+ &format!("impl for type defined outside of crate."))
.note("define and implement a trait or new type instead")
.emit();
}
ty: &str,
span: Span) {
match lang_def_id {
- Some(lang_def_id) if lang_def_id == impl_def_id => { /* OK */ },
+ Some(lang_def_id) if lang_def_id == impl_def_id => {
+ // OK
+ }
_ => {
- struct_span_err!(self.tcx.sess, span, E0390,
- "only a single inherent implementation marked with `#[lang = \"{}\"]` \
- is allowed for the `{}` primitive", lang, ty)
+ struct_span_err!(self.tcx.sess,
+ span,
+ E0390,
+ "only a single inherent implementation marked with `#[lang = \
+ \"{}\"]` is allowed for the `{}` primitive",
+ lang,
+ ty)
.span_help(span, "consider using a trait to implement these methods")
.emit();
}
return;
}
_ => {
- struct_span_err!(self.tcx.sess, ty.span, E0118,
+ struct_span_err!(self.tcx.sess,
+ ty.span,
+ E0118,
"no base type found for inherent implementation")
- .span_label(ty.span, &format!("impl requires a base type"))
- .note(&format!("either implement a trait on it or create a newtype \
- to wrap it instead"))
- .emit();
+ .span_label(ty.span, &format!("impl requires a base type"))
+ .note(&format!("either implement a trait on it or create a newtype \
+ to wrap it instead"))
+ .emit();
return;
}
}
let trait_ref = self.tcx.impl_trait_ref(def_id).unwrap();
let trait_def_id = trait_ref.def_id;
match traits::orphan_check(self.tcx, def_id) {
- Ok(()) => { }
+ Ok(()) => {}
Err(traits::OrphanCheckErr::NoLocalInputType) => {
- struct_span_err!(
- self.tcx.sess, item.span, E0117,
- "only traits defined in the current crate can be \
- implemented for arbitrary types")
- .span_label(item.span, &format!("impl doesn't use types inside crate"))
- .note(&format!("the impl does not reference any \
- types defined in this crate"))
- .emit();
+ struct_span_err!(self.tcx.sess,
+ item.span,
+ E0117,
+ "only traits defined in the current crate can be \
+ implemented for arbitrary types")
+ .span_label(item.span, &format!("impl doesn't use types inside crate"))
+ .note(&format!("the impl does not reference any types defined in \
+ this crate"))
+ .emit();
return;
}
Err(traits::OrphanCheckErr::UncoveredTy(param_ty)) => {
- span_err!(self.tcx.sess, item.span, E0210,
+ span_err!(self.tcx.sess,
+ item.span,
+ E0210,
"type parameter `{}` must be used as the type parameter for \
some local type (e.g. `MyStruct<T>`); only traits defined in \
the current crate can be implemented for a type parameter",
trait_ref,
trait_def_id,
self.tcx.trait_has_default_impl(trait_def_id));
- if
- self.tcx.trait_has_default_impl(trait_def_id) &&
- trait_def_id.krate != LOCAL_CRATE
- {
+ if self.tcx.trait_has_default_impl(trait_def_id) &&
+ trait_def_id.krate != LOCAL_CRATE {
let self_ty = trait_ref.self_ty();
let opt_self_def_id = match self_ty.sty {
ty::TyAdt(self_def, _) => Some(self_def.did),
if self_def_id.is_local() {
None
} else {
- Some(format!(
- "cross-crate traits with a default impl, like `{}`, \
- can only be implemented for a struct/enum type \
- defined in the current crate",
- self.tcx.item_path_str(trait_def_id)))
+ Some(format!("cross-crate traits with a default impl, like `{}`, \
+ can only be implemented for a struct/enum type \
+ defined in the current crate",
+ self.tcx.item_path_str(trait_def_id)))
}
}
_ => {
- Some(format!(
- "cross-crate traits with a default impl, like `{}`, \
- can only be implemented for a struct/enum type, \
- not `{}`",
- self.tcx.item_path_str(trait_def_id),
- self_ty))
+ Some(format!("cross-crate traits with a default impl, like `{}`, can \
+ only be implemented for a struct/enum type, not `{}`",
+ self.tcx.item_path_str(trait_def_id),
+ self_ty))
}
};
// Disallow *all* explicit impls of `Sized` and `Unsize` for now.
if Some(trait_def_id) == self.tcx.lang_items.sized_trait() {
- struct_span_err!(self.tcx.sess, item.span, E0322,
- "explicit impls for the `Sized` trait are not permitted")
+ struct_span_err!(self.tcx.sess,
+ item.span,
+ E0322,
+ "explicit impls for the `Sized` trait are not permitted")
.span_label(item.span, &format!("impl of 'Sized' not allowed"))
.emit();
return;
}
if Some(trait_def_id) == self.tcx.lang_items.unsize_trait() {
- span_err!(self.tcx.sess, item.span, E0328,
+ span_err!(self.tcx.sess,
+ item.span,
+ E0328,
"explicit impls for the `Unsize` trait are not permitted");
return;
}
self.tcx.map.node_to_string(item.id));
let trait_ref = self.tcx.impl_trait_ref(def_id).unwrap();
if trait_ref.def_id.krate != LOCAL_CRATE {
- struct_span_err!(self.tcx.sess, item_trait_ref.path.span, E0318,
- "cannot create default implementations for traits outside the \
- crate they're defined in; define a new trait instead")
+ struct_span_err!(self.tcx.sess,
+ item_trait_ref.path.span,
+ E0318,
+ "cannot create default implementations for traits outside \
+ the crate they're defined in; define a new trait instead")
.span_label(item_trait_ref.path.span,
&format!("`{}` trait not defined in this crate",
item_trait_ref.path))
}
}
-impl<'cx, 'tcx,'v> intravisit::Visitor<'v> for OrphanChecker<'cx, 'tcx> {
+impl<'cx, 'tcx, 'v> intravisit::Visitor<'v> for OrphanChecker<'cx, 'tcx> {
fn visit_item(&mut self, item: &hir::Item) {
self.check_item(item);
}
use lint;
pub fn check<'a, 'tcx>(tcx: TyCtxt<'a, 'tcx, 'tcx>) {
- let mut overlap = OverlapChecker { tcx: tcx,
- default_impls: DefIdMap() };
+ let mut overlap = OverlapChecker {
+ tcx: tcx,
+ default_impls: DefIdMap(),
+ };
// this secondary walk specifically checks for some other cases,
// like defaulted traits, for which additional overlap rules exist
tcx.visit_all_items_in_krate(DepNode::CoherenceOverlapCheckSpecial, &mut overlap);
}
-struct OverlapChecker<'cx, 'tcx:'cx> {
+struct OverlapChecker<'cx, 'tcx: 'cx> {
tcx: TyCtxt<'cx, 'tcx, 'tcx>,
// maps from a trait def-id to an impl id
impl<'cx, 'tcx> OverlapChecker<'cx, 'tcx> {
fn check_for_common_items_in_impls(&self, impl1: DefId, impl2: DefId) {
#[derive(Copy, Clone, PartialEq)]
- enum Namespace { Type, Value }
+ enum Namespace {
+ Type,
+ Value,
+ }
fn name_and_namespace<'a, 'tcx>(tcx: TyCtxt<'a, 'tcx, 'tcx>,
def_id: DefId)
- -> (ast::Name, Namespace)
- {
+ -> (ast::Name, Namespace) {
let item = tcx.impl_or_trait_item(def_id);
- (item.name(), match item {
- ty::TypeTraitItem(..) => Namespace::Type,
- ty::ConstTraitItem(..) => Namespace::Value,
- ty::MethodTraitItem(..) => Namespace::Value,
- })
+ (item.name(),
+ match item {
+ ty::TypeTraitItem(..) => Namespace::Type,
+ ty::ConstTraitItem(..) => Namespace::Value,
+ ty::MethodTraitItem(..) => Namespace::Value,
+ })
}
let impl_items = self.tcx.impl_or_trait_item_def_ids.borrow();
let inherent_impls = self.tcx.inherent_impls.borrow();
let impls = match inherent_impls.get(&ty_def_id) {
Some(impls) => impls,
- None => return
+ None => return,
};
for (i, &impl1_def_id) in impls.iter().enumerate() {
- for &impl2_def_id in &impls[(i+1)..] {
+ for &impl2_def_id in &impls[(i + 1)..] {
self.tcx.infer_ctxt(None, None, Reveal::ExactMatch).enter(|infcx| {
if traits::overlapping_impls(&infcx, impl1_def_id, impl2_def_id).is_some() {
self.check_for_common_items_in_impls(impl1_def_id, impl2_def_id)
}
}
-impl<'cx, 'tcx,'v> intravisit::Visitor<'v> for OverlapChecker<'cx, 'tcx> {
+impl<'cx, 'tcx, 'v> intravisit::Visitor<'v> for OverlapChecker<'cx, 'tcx> {
fn visit_item(&mut self, item: &'v hir::Item) {
match item.node {
- hir::ItemEnum(..) | hir::ItemStruct(..) | hir::ItemUnion(..) => {
+ hir::ItemEnum(..) |
+ hir::ItemStruct(..) |
+ hir::ItemUnion(..) => {
let type_def_id = self.tcx.map.local_def_id(item.id);
self.check_for_overlapping_inherent_impls(type_def_id);
}
let prev_default_impl = self.default_impls.insert(trait_ref.def_id, item.id);
if let Some(prev_id) = prev_default_impl {
- let mut err = struct_span_err!(
- self.tcx.sess,
- self.tcx.span_of_impl(impl_def_id).unwrap(), E0521,
- "redundant default implementations of trait `{}`:",
- trait_ref);
- err.span_note(self.tcx.span_of_impl(self.tcx.map.local_def_id(prev_id))
+ let mut err = struct_span_err!(self.tcx.sess,
+ self.tcx.span_of_impl(impl_def_id).unwrap(),
+ E0521,
+ "redundant default implementations of trait \
+ `{}`:",
+ trait_ref);
+ err.span_note(self.tcx
+ .span_of_impl(self.tcx.map.local_def_id(prev_id))
.unwrap(),
"redundant implementation is here:");
err.emit();
let trait_ref = self.tcx.impl_trait_ref(impl_def_id).unwrap();
let trait_def_id = trait_ref.def_id;
- let _task = self.tcx.dep_graph.in_task(
- DepNode::CoherenceOverlapCheck(trait_def_id));
+ let _task =
+ self.tcx.dep_graph.in_task(DepNode::CoherenceOverlapCheck(trait_def_id));
let def = self.tcx.lookup_trait_def(trait_def_id);
// insertion failed due to overlap
if let Err(overlap) = insert_result {
- let mut err = struct_span_err!(
- self.tcx.sess, self.tcx.span_of_impl(impl_def_id).unwrap(), E0119,
- "conflicting implementations of trait `{}`{}:",
- overlap.trait_desc,
- overlap.self_desc.clone().map_or(String::new(),
- |ty| format!(" for type `{}`", ty)));
+ let mut err = struct_span_err!(self.tcx.sess,
+ self.tcx.span_of_impl(impl_def_id).unwrap(),
+ E0119,
+ "conflicting implementations of trait `{}`{}:",
+ overlap.trait_desc,
+ overlap.self_desc.clone().map_or(String::new(),
+ |ty| {
+ format!(" for type `{}`", ty)
+ }));
match self.tcx.span_of_impl(overlap.with_impl) {
Ok(span) => {
- err.span_label(span,
- &format!("first implementation here"));
+ err.span_label(span, &format!("first implementation here"));
err.span_label(self.tcx.span_of_impl(impl_def_id).unwrap(),
&format!("conflicting implementation{}",
overlap.self_desc
|ty| format!(" for `{}`", ty))));
}
Err(cname) => {
- err.note(&format!("conflicting implementation in crate `{}`",
- cname));
+ err.note(&format!("conflicting implementation in crate `{}`", cname));
}
}
let mut supertrait_def_ids =
traits::supertrait_def_ids(self.tcx, data.principal.def_id());
if supertrait_def_ids.any(|d| d == trait_def_id) {
- span_err!(self.tcx.sess, item.span, E0371,
+ span_err!(self.tcx.sess,
+ item.span,
+ E0371,
"the object type `{}` automatically \
implements the trait `{}`",
trait_ref.self_ty(),
tcx.map.krate().visit_all_items(&mut orphan);
}
-struct UnsafetyChecker<'cx, 'tcx:'cx> {
- tcx: TyCtxt<'cx, 'tcx, 'tcx>
+struct UnsafetyChecker<'cx, 'tcx: 'cx> {
+ tcx: TyCtxt<'cx, 'tcx, 'tcx>,
}
impl<'cx, 'tcx, 'v> UnsafetyChecker<'cx, 'tcx> {
- fn check_unsafety_coherence(&mut self, item: &'v hir::Item,
+ fn check_unsafety_coherence(&mut self,
+ item: &'v hir::Item,
unsafety: hir::Unsafety,
polarity: hir::ImplPolarity) {
match self.tcx.impl_trait_ref(self.tcx.map.local_def_id(item.id)) {
None => {
// Inherent impl.
match unsafety {
- hir::Unsafety::Normal => { /* OK */ }
+ hir::Unsafety::Normal => {
+ // OK
+ }
hir::Unsafety::Unsafe => {
- span_err!(self.tcx.sess, item.span, E0197,
+ span_err!(self.tcx.sess,
+ item.span,
+ E0197,
"inherent impls cannot be declared as unsafe");
}
}
Some(trait_ref) => {
let trait_def = self.tcx.lookup_trait_def(trait_ref.def_id);
match (trait_def.unsafety, unsafety, polarity) {
- (hir::Unsafety::Unsafe,
- hir::Unsafety::Unsafe, hir::ImplPolarity::Negative) => {
- span_err!(self.tcx.sess, item.span, E0198,
+ (hir::Unsafety::Unsafe, hir::Unsafety::Unsafe, hir::ImplPolarity::Negative) => {
+ span_err!(self.tcx.sess,
+ item.span,
+ E0198,
"negative implementations are not unsafe");
}
(hir::Unsafety::Normal, hir::Unsafety::Unsafe, _) => {
- span_err!(self.tcx.sess, item.span, E0199,
+ span_err!(self.tcx.sess,
+ item.span,
+ E0199,
"implementing the trait `{}` is not unsafe",
trait_ref);
}
- (hir::Unsafety::Unsafe,
- hir::Unsafety::Normal, hir::ImplPolarity::Positive) => {
- span_err!(self.tcx.sess, item.span, E0200,
+ (hir::Unsafety::Unsafe, hir::Unsafety::Normal, hir::ImplPolarity::Positive) => {
+ span_err!(self.tcx.sess,
+ item.span,
+ E0200,
"the trait `{}` requires an `unsafe impl` declaration",
trait_ref);
}
- (hir::Unsafety::Unsafe,
- hir::Unsafety::Normal, hir::ImplPolarity::Negative) |
- (hir::Unsafety::Unsafe,
- hir::Unsafety::Unsafe, hir::ImplPolarity::Positive) |
+ (hir::Unsafety::Unsafe, hir::Unsafety::Normal, hir::ImplPolarity::Negative) |
+ (hir::Unsafety::Unsafe, hir::Unsafety::Unsafe, hir::ImplPolarity::Positive) |
(hir::Unsafety::Normal, hir::Unsafety::Normal, _) => {
- /* OK */
+ // OK
}
}
}
}
}
-impl<'cx, 'tcx,'v> intravisit::Visitor<'v> for UnsafetyChecker<'cx, 'tcx> {
+impl<'cx, 'tcx, 'v> intravisit::Visitor<'v> for UnsafetyChecker<'cx, 'tcx> {
fn visit_item(&mut self, item: &'v hir::Item) {
match item.node {
hir::ItemDefaultImpl(unsafety, _) => {
hir::ItemImpl(unsafety, polarity, ..) => {
self.check_unsafety_coherence(item, unsafety, polarity);
}
- _ => { }
+ _ => {}
}
}
}
} else if let Some(disr) = repr_type.disr_incr(tcx, prev_disr) {
Some(disr)
} else {
- span_err!(tcx.sess, v.span, E0370,
- "enum discriminant overflowed on value after {}; \
- set explicitly via {} = {} if that is desired outcome",
- prev_disr.unwrap(), v.node.name, wrapped_disr);
+ struct_span_err!(tcx.sess, v.span, E0370,
+ "enum discriminant overflowed")
+ .span_label(v.span, &format!("overflowed on value after {}", prev_disr.unwrap()))
+ .note(&format!("explicitly set `{} = {}` if that is desired outcome",
+ v.node.name, wrapped_disr))
+ .emit();
None
}.unwrap_or(wrapped_disr);
prev_disr = Some(disr);
```
"##,
+E0513: r##"
+The type of the variable couldn't be found out.
+
+Erroneous code example:
+
+```compile_fail,E0513
+use std::mem;
+
+unsafe {
+ let size = mem::size_of::<u32>();
+ mem::transmute_copy::<u32, [u8; size]>(&8_8);
+ // error: no type for local variable
+}
+```
+
+To fix this error, please use a constant size instead of `size`. To make
+this error more obvious, you could run:
+
+```compile_fail,E0080
+use std::mem;
+
+unsafe {
+ mem::transmute_copy::<u32, [u8; mem::size_of::<u32>()]>(&8_8);
+ // error: constant evaluation error
+}
+```
+
+So now, you can fix your code by setting the size directly:
+
+```
+use std::mem;
+
+unsafe {
+ mem::transmute_copy::<u32, [u8; 4]>(&8_8);
+ // `u32` is 4 bytes so we replace the `mem::size_of` call with its size
+}
+```
+"##,
+
E0516: r##"
The `typeof` keyword is currently reserved but unimplemented.
Erroneous code example:
E0399, // trait items need to be implemented because the associated
// type `{}` was overridden
E0436, // functional record update requires a struct
- E0513, // no type for local variable ..
E0521, // redundant default implementations of trait
E0533, // `{}` does not name a unit variant, unit struct or a constant
E0562, // `impl Trait` not allowed outside of function
#[stable(feature = "rust1", since = "1.0.0")]
pub use core::char::{MAX, from_digit, from_u32, from_u32_unchecked};
#[stable(feature = "rust1", since = "1.0.0")]
-pub use core::char::{EncodeUtf16, EncodeUtf8, EscapeDebug, EscapeDefault, EscapeUnicode};
+pub use core::char::{EscapeDebug, EscapeDefault, EscapeUnicode};
// unstable reexports
#[unstable(feature = "try_from", issue = "33417")]
C::len_utf16(self)
}
- /// Returns an iterator over the bytes of this character as UTF-8.
+ /// Encodes this character as UTF-8 into the provided byte buffer,
+ /// and then returns the subslice of the buffer that contains the encoded character.
///
- /// The returned iterator also has an `as_slice()` method to view the
- /// encoded bytes as a byte slice.
+ /// # Panics
+ ///
+ /// Panics if the buffer is not large enough.
+ /// A buffer of length four is large enough to encode any `char`.
///
/// # Examples
///
+ /// In both of these examples, 'ß' takes two bytes to encode.
+ ///
/// ```
/// #![feature(unicode)]
///
- /// let iterator = 'ß'.encode_utf8();
- /// assert_eq!(iterator.as_slice(), [0xc3, 0x9f]);
+ /// let mut b = [0; 2];
///
- /// for (i, byte) in iterator.enumerate() {
- /// println!("byte {}: {:x}", i, byte);
- /// }
+ /// let result = 'ß'.encode_utf8(&mut b);
+ ///
+ /// assert_eq!(result, "ß");
+ ///
+ /// assert_eq!(result.len(), 2);
+ /// ```
+ ///
+ /// A buffer that's too small:
+ ///
+ /// ```
+ /// #![feature(unicode)]
+ /// use std::thread;
+ ///
+ /// let result = thread::spawn(|| {
+ /// let mut b = [0; 1];
+ ///
+ /// // this panics
+ /// 'ß'.encode_utf8(&mut b);
+ /// }).join();
+ ///
+ /// assert!(result.is_err());
/// ```
- #[unstable(feature = "unicode", issue = "27784")]
+ #[unstable(feature = "unicode",
+ reason = "pending decision about Iterator/Writer/Reader",
+ issue = "27784")]
#[inline]
- pub fn encode_utf8(self) -> EncodeUtf8 {
- C::encode_utf8(self)
+ pub fn encode_utf8(self, dst: &mut [u8]) -> &mut str {
+ C::encode_utf8(self, dst)
}
- /// Returns an iterator over the `u16` entries of this character as UTF-16.
+ /// Encodes this character as UTF-16 into the provided `u16` buffer,
+ /// and then returns the subslice of the buffer that contains the encoded character.
///
- /// The returned iterator also has an `as_slice()` method to view the
- /// encoded form as a slice.
+ /// # Panics
+ ///
+ /// Panics if the buffer is not large enough.
+ /// A buffer of length 2 is large enough to encode any `char`.
///
/// # Examples
///
+ /// In both of these examples, '𝕊' takes two `u16`s to encode.
+ ///
/// ```
/// #![feature(unicode)]
///
- /// let iterator = '𝕊'.encode_utf16();
- /// assert_eq!(iterator.as_slice(), [0xd835, 0xdd4a]);
+ /// let mut b = [0; 2];
///
- /// for (i, val) in iterator.enumerate() {
- /// println!("entry {}: {:x}", i, val);
- /// }
+ /// let result = '𝕊'.encode_utf16(&mut b);
+ ///
+ /// assert_eq!(result.len(), 2);
/// ```
- #[unstable(feature = "unicode", issue = "27784")]
+ ///
+ /// A buffer that's too small:
+ ///
+ /// ```
+ /// #![feature(unicode)]
+ /// use std::thread;
+ ///
+ /// let result = thread::spawn(|| {
+ /// let mut b = [0; 1];
+ ///
+ /// // this panics
+ /// '𝕊'.encode_utf16(&mut b);
+ /// }).join();
+ ///
+ /// assert!(result.is_err());
+ /// ```
+ #[unstable(feature = "unicode",
+ reason = "pending decision about Iterator/Writer/Reader",
+ issue = "27784")]
#[inline]
- pub fn encode_utf16(self) -> EncodeUtf16 {
- C::encode_utf16(self)
+ pub fn encode_utf16(self, dst: &mut [u16]) -> &mut [u16] {
+ C::encode_utf16(self, dst)
}
/// Returns true if this `char` is an alphabetic code point, and false if not.
return Some(tmp);
}
+ let mut buf = [0; 2];
self.chars.next().map(|ch| {
- let n = CharExt::encode_utf16(ch);
- let n = n.as_slice();
- if n.len() == 2 {
- self.extra = n[1];
+ let n = CharExt::encode_utf16(ch, &mut buf).len();
+ if n == 2 {
+ self.extra = buf[1];
}
- n[0]
+ buf[0]
})
}
}
}
pub fn is_mod(&self) -> bool {
- ItemType::from(self) == ItemType::Module
+ self.type_() == ItemType::Module
}
pub fn is_trait(&self) -> bool {
- ItemType::from(self) == ItemType::Trait
+ self.type_() == ItemType::Trait
}
pub fn is_struct(&self) -> bool {
- ItemType::from(self) == ItemType::Struct
+ self.type_() == ItemType::Struct
}
pub fn is_enum(&self) -> bool {
- ItemType::from(self) == ItemType::Module
+ self.type_() == ItemType::Module
}
pub fn is_fn(&self) -> bool {
- ItemType::from(self) == ItemType::Function
+ self.type_() == ItemType::Function
}
pub fn is_associated_type(&self) -> bool {
- ItemType::from(self) == ItemType::AssociatedType
+ self.type_() == ItemType::AssociatedType
}
pub fn is_associated_const(&self) -> bool {
- ItemType::from(self) == ItemType::AssociatedConst
+ self.type_() == ItemType::AssociatedConst
}
pub fn is_method(&self) -> bool {
- ItemType::from(self) == ItemType::Method
+ self.type_() == ItemType::Method
}
pub fn is_ty_method(&self) -> bool {
- ItemType::from(self) == ItemType::TyMethod
+ self.type_() == ItemType::TyMethod
}
pub fn is_primitive(&self) -> bool {
- ItemType::from(self) == ItemType::Primitive
+ self.type_() == ItemType::Primitive
}
pub fn is_stripped(&self) -> bool {
match self.inner { StrippedItem(..) => true, _ => false }
pub fn stable_since(&self) -> Option<&str> {
self.stability.as_ref().map(|s| &s.since[..])
}
+
+ /// Returns a documentation-level item type from the item.
+ pub fn type_(&self) -> ItemType {
+ ItemType::from(self)
+ }
}
#[derive(Clone, RustcEncodable, RustcDecodable, Debug)]
TyRptr(ref l, ref m) =>
BorrowedRef {lifetime: l.clean(cx), mutability: m.mutbl.clean(cx),
type_: box m.ty.clean(cx)},
- TyVec(ref ty) => Vector(box ty.clean(cx)),
- TyFixedLengthVec(ref ty, ref e) => {
+ TySlice(ref ty) => Vector(box ty.clean(cx)),
+ TyArray(ref ty, ref e) => {
let n = if let Some(tcx) = cx.tcx_opt() {
use rustc_const_math::{ConstInt, ConstUsize};
use rustc_const_eval::eval_const_expr;
},
PatKind::Range(..) => panic!("tried to get argument name from PatKind::Range, \
which is not allowed in function arguments"),
- PatKind::Vec(ref begin, ref mid, ref end) => {
+ PatKind::Slice(ref begin, ref mid, ref end) => {
let begin = begin.iter().map(|p| name_from_pat(&**p));
let mid = mid.as_ref().map(|p| format!("..{}", name_from_pat(&**p))).into_iter();
let end = end.iter().map(|p| name_from_pat(&**p));
use std::cell::{RefCell, Cell};
use std::mem;
use std::rc::Rc;
+use std::path::PathBuf;
use visit_ast::RustdocVisitor;
use clean;
cfgs: Vec<String>,
externs: config::Externs,
input: Input,
- triple: Option<String>) -> (clean::Crate, RenderInfo)
+ triple: Option<String>,
+ maybe_sysroot: Option<PathBuf>) -> (clean::Crate, RenderInfo)
{
// Parse, resolve, and typecheck the given crate.
let warning_lint = lint::builtin::WARNINGS.name_lower();
let sessopts = config::Options {
- maybe_sysroot: None,
+ maybe_sysroot: maybe_sysroot,
search_paths: search_paths,
crate_types: vec!(config::CrateTypeRlib),
lint_opts: vec!((warning_lint, lint::Allow)),
#![allow(non_camel_case_types)]
use libc;
-use rustc::session::config::get_unstable_features_setting;
use std::ascii::AsciiExt;
use std::cell::RefCell;
use std::default::Default;
let mut data = LangString::all_false();
let mut allow_compile_fail = false;
let mut allow_error_code_check = false;
- match get_unstable_features_setting() {
- UnstableFeatures::Allow | UnstableFeatures::Cheat => {
- allow_compile_fail = true;
- allow_error_code_check = true;
- }
- _ => {},
- };
+ if UnstableFeatures::from_environment().is_nightly_build() {
+ allow_compile_fail = true;
+ allow_error_code_check = true;
+ }
let tokens = string.split(|c: char|
!(c == '_' || c == '-' || c.is_alphanumeric())
use rustc::hir::def_id::{CrateNum, CRATE_DEF_INDEX, DefId, LOCAL_CRATE};
use rustc::middle::privacy::AccessLevels;
use rustc::middle::stability;
-use rustc::session::config::get_unstable_features_setting;
use rustc::hir;
use rustc::util::nodemap::{FnvHashMap, FnvHashSet};
use rustc_data_structures::flock;
/// Current hierarchy of components leading down to what's currently being
/// rendered
pub current: Vec<String>,
- /// String representation of how to get back to the root path of the 'doc/'
- /// folder in terms of a relative URL.
- pub root_path: String,
/// The current destination folder of where HTML artifacts should be placed.
/// This changes as the context descends into the module hierarchy.
pub dst: PathBuf,
krate = render_sources(&dst, &mut scx, krate)?;
let cx = Context {
current: Vec::new(),
- root_path: String::new(),
dst: dst,
render_redirect_pages: false,
shared: Arc::new(scx),
for &(did, ref item) in orphan_impl_items {
if let Some(&(ref fqp, _)) = paths.get(&did) {
search_index.push(IndexItem {
- ty: item_type(item),
+ ty: item.type_(),
name: item.name.clone().unwrap(),
path: fqp[..fqp.len() - 1].join("::"),
desc: Escape(&shorter(item.doc_value())).to_string(),
}
}
-/// Returns a documentation-level item type from the item.
-fn item_type(item: &clean::Item) -> ItemType {
- ItemType::from(item)
-}
-
/// Takes a path to a source file and cleans the path to it. This canonicalizes
/// things like ".." to components which preserve the "top down" hierarchy of a
/// static HTML tree. Each component in the cleaned path will be passed as an
// inserted later on when serializing the search-index.
if item.def_id.index != CRATE_DEF_INDEX {
self.search_index.push(IndexItem {
- ty: item_type(&item),
+ ty: item.type_(),
name: s.to_string(),
path: path.join("::").to_string(),
desc: Escape(&shorter(item.doc_value())).to_string(),
self.access_levels.is_public(item.def_id)
{
self.paths.insert(item.def_id,
- (self.stack.clone(), item_type(&item)));
+ (self.stack.clone(), item.type_()));
}
}
// link variants to their parent enum because pages aren't emitted
clean::PrimitiveItem(..) if item.visibility.is_some() => {
self.paths.insert(item.def_id, (self.stack.clone(),
- item_type(&item)));
+ item.type_()));
}
_ => {}
}
impl Context {
+ /// String representation of how to get back to the root path of the 'doc/'
+ /// folder in terms of a relative URL.
+ fn root_path(&self) -> String {
+ repeat("../").take(self.current.len()).collect::<String>()
+ }
+
/// Recurse in the directory structure and change the "root path" to make
/// sure it always points to the top (relatively)
fn recurse<T, F>(&mut self, s: String, f: F) -> T where
}
let prev = self.dst.clone();
self.dst.push(&s);
- self.root_path.push_str("../");
self.current.push(s);
info!("Recursing into {}", self.dst.display());
// Go back to where we were at
self.dst = prev;
- let len = self.root_path.len();
- self.root_path.truncate(len - 3);
self.current.pop().unwrap();
return ret;
title.push_str(it.name.as_ref().unwrap());
}
title.push_str(" - Rust");
- let tyname = item_type(it).css_class();
+ let tyname = it.type_().css_class();
let desc = if it.is_crate() {
format!("API documentation for the Rust `{}` crate.",
self.shared.layout.krate)
let keywords = make_item_keywords(it);
let page = layout::Page {
css_class: tyname,
- root_path: &self.root_path,
+ root_path: &self.root_path(),
title: &title,
description: &desc,
keywords: &keywords,
&Item{ cx: self, item: it },
self.shared.css_file_extension.is_some())?;
} else {
- let mut url = repeat("../").take(self.current.len())
- .collect::<String>();
+ let mut url = self.root_path();
if let Some(&(ref names, ty)) = cache().paths.get(&it.def_id) {
for name in &names[..names.len() - 1] {
url.push_str(name);
// buf will be empty if the item is stripped and there is no redirect for it
if !buf.is_empty() {
let name = item.name.as_ref().unwrap();
- let item_type = item_type(&item);
+ let item_type = item.type_();
let file_name = &item_path(item_type, name);
let joint_dst = self.dst.join(file_name);
try_err!(fs::create_dir_all(&self.dst), &self.dst);
for item in &m.items {
if maybe_ignore_item(item) { continue }
- let short = item_type(item).css_class();
+ let short = item.type_().css_class();
let myname = match item.name {
None => continue,
Some(ref s) => s.to_string(),
}).map(|l| &l.1);
let root = match root {
Some(&Remote(ref s)) => s.to_string(),
- Some(&Local) => self.cx.root_path.clone(),
+ Some(&Local) => self.cx.root_path(),
None | Some(&Unknown) => return None,
};
Some(format!("{root}/{krate}/macro.{name}.html?gotomacrosrc=1",
let path = PathBuf::from(&self.item.source.filename);
self.cx.shared.local_sources.get(&path).map(|path| {
format!("{root}src/{krate}/{path}#{href}",
- root = self.cx.root_path,
+ root = self.cx.root_path(),
krate = self.cx.shared.layout.krate,
path = path,
href = href)
};
let mut path = match cache.extern_locations.get(&self.item.def_id.krate) {
Some(&(_, Remote(ref s))) => s.to_string(),
- Some(&(_, Local)) => self.cx.root_path.clone(),
+ Some(&(_, Local)) => self.cx.root_path(),
Some(&(_, Unknown)) => return None,
None => return None,
};
}
Some(format!("{path}{file}?gotosrc={goto}",
path = path,
- file = item_path(item_type(self.item), external_path.last().unwrap()),
+ file = item_path(self.item.type_(), external_path.last().unwrap()),
goto = self.item.def_id.index.as_usize()))
}
}
}
}
write!(fmt, "<a class='{}' href=''>{}</a>",
- item_type(self.item), self.item.name.as_ref().unwrap())?;
+ self.item.type_(), self.item.name.as_ref().unwrap())?;
write!(fmt, "</span>")?; // in-band
write!(fmt, "<span class='out-of-band'>")?;
}
fn cmp(i1: &clean::Item, i2: &clean::Item, idx1: usize, idx2: usize) -> Ordering {
- let ty1 = item_type(i1);
- let ty2 = item_type(i2);
+ let ty1 = i1.type_();
+ let ty2 = i2.type_();
if ty1 != ty2 {
return (reorder(ty1), idx1).cmp(&(reorder(ty2), idx2))
}
continue;
}
- let myty = Some(item_type(myitem));
+ let myty = Some(myitem.type_());
if curty == Some(ItemType::ExternCrate) && myty == Some(ItemType::Import) {
// Put `extern crate` and `use` re-exports in the same section.
curty = myty;
name = *myitem.name.as_ref().unwrap(),
stab_docs = stab_docs,
docs = shorter(Some(&Markdown(doc_value).to_string())),
- class = item_type(myitem),
+ class = myitem.type_(),
stab = myitem.stability_class(),
- href = item_path(item_type(myitem), myitem.name.as_ref().unwrap()),
+ href = item_path(myitem.type_(), myitem.name.as_ref().unwrap()),
title = full_path(cx, myitem))?;
}
}
fn item_function(w: &mut fmt::Formatter, cx: &Context, it: &clean::Item,
f: &clean::Function) -> fmt::Result {
// FIXME(#24111): remove when `const_fn` is stabilized
- let vis_constness = match get_unstable_features_setting() {
+ let vis_constness = match UnstableFeatures::from_environment() {
UnstableFeatures::Allow => f.constness,
_ => hir::Constness::NotConst
};
fn trait_item(w: &mut fmt::Formatter, cx: &Context, m: &clean::Item, t: &clean::Item)
-> fmt::Result {
let name = m.name.as_ref().unwrap();
- let item_type = item_type(m);
+ let item_type = m.type_();
let id = derive_id(format!("{}.{}", item_type, name));
let ns_id = derive_id(format!("{}.{}", name, item_type.name_space()));
write!(w, "<h3 id='{id}' class='method stab {stab}'>\
let (ref path, _) = cache.external_paths[&it.def_id];
path[..path.len() - 1].join("/")
},
- ty = item_type(it).css_class(),
+ ty = it.type_().css_class(),
name = *it.name.as_ref().unwrap())?;
Ok(())
}
use html::item_type::ItemType::*;
let name = it.name.as_ref().unwrap();
- let ty = match item_type(it) {
+ let ty = match it.type_() {
Typedef | AssociatedType => AssociatedType,
s@_ => s,
};
link: AssocItemLink)
-> fmt::Result {
let name = meth.name.as_ref().unwrap();
- let anchor = format!("#{}.{}", item_type(meth), name);
+ let anchor = format!("#{}.{}", meth.type_(), name);
let href = match link {
AssocItemLink::Anchor(Some(ref id)) => format!("#{}", id),
AssocItemLink::Anchor(None) => anchor,
}
};
// FIXME(#24111): remove when `const_fn` is stabilized
- let vis_constness = match get_unstable_features_setting() {
+ let vis_constness = match UnstableFeatures::from_environment() {
UnstableFeatures::Allow => constness,
_ => hir::Constness::NotConst
};
link: AssocItemLink, render_mode: RenderMode,
is_default_item: bool, outer_version: Option<&str>,
trait_: Option<&clean::Trait>) -> fmt::Result {
- let item_type = item_type(item);
+ let item_type = item.type_();
let name = item.name.as_ref().unwrap();
let render_method_item: bool = match render_mode {
write!(fmt, "::<wbr>")?;
}
write!(fmt, "<a href='{}index.html'>{}</a>",
- &cx.root_path[..(cx.current.len() - i - 1) * 3],
+ &cx.root_path()[..(cx.current.len() - i - 1) * 3],
*name)?;
}
write!(fmt, "</p>")?;
relpath: '{path}'\
}};</script>",
name = it.name.as_ref().map(|x| &x[..]).unwrap_or(""),
- ty = item_type(it).css_class(),
+ ty = it.type_().css_class(),
path = relpath)?;
if parentlen == 0 {
// there is no sidebar-items.js beyond the crate root path
font-size: 90%;
}
+/* Shift where in trait listing down a line */
+pre.trait .where::before {
+ content: '\a ';
+}
+
nav {
border-bottom: 1px solid;
padding-bottom: 10px;
use clean::Attributes;
-type Pass = (&'static str, // name
- fn(clean::Crate) -> plugins::PluginResult, // fn
- &'static str); // description
-
-const PASSES: &'static [Pass] = &[
- ("strip-hidden", passes::strip_hidden,
- "strips all doc(hidden) items from the output"),
- ("unindent-comments", passes::unindent_comments,
- "removes excess indentation on comments in order for markdown to like it"),
- ("collapse-docs", passes::collapse_docs,
- "concatenates all document attributes into one document attribute"),
- ("strip-private", passes::strip_private,
- "strips all private items from a crate which cannot be seen externally, \
- implies strip-priv-imports"),
- ("strip-priv-imports", passes::strip_priv_imports,
- "strips all private import statements (`use`, `extern crate`) from a crate"),
-];
-
-const DEFAULT_PASSES: &'static [&'static str] = &[
- "strip-hidden",
- "strip-private",
- "collapse-docs",
- "unindent-comments",
-];
-
struct Output {
krate: clean::Crate,
renderinfo: html::render::RenderInfo,
}
pub fn main() {
- const STACK_SIZE: usize = 32000000; // 32MB
+ const STACK_SIZE: usize = 32_000_000; // 32MB
let res = std::thread::Builder::new().stack_size(STACK_SIZE).spawn(move || {
let s = env::args().collect::<Vec<_>>();
main_args(&s)
own theme", "PATH")),
unstable(optmulti("Z", "",
"internal and debugging options (only on nightly build)", "FLAG")),
+ stable(optopt("", "sysroot", "Override the system root", "PATH")),
)
}
if matches.opt_strs("passes") == ["list"] {
println!("Available passes for running rustdoc:");
- for &(name, _, description) in PASSES {
+ for &(name, _, description) in passes::PASSES {
println!("{:>20} - {}", name, description);
}
println!("\nDefault passes for rustdoc:");
- for &name in DEFAULT_PASSES {
+ for &name in passes::DEFAULT_PASSES {
println!("{:>20}", name);
}
return 0;
if matches.free.is_empty() {
println!("expected an input file to act on");
return 1;
- } if matches.free.len() > 1 {
+ }
+ if matches.free.len() > 1 {
println!("only one input file may be specified");
return 1;
}
}
let cfgs = matches.opt_strs("cfg");
let triple = matches.opt_str("target");
+ let maybe_sysroot = matches.opt_str("sysroot").map(PathBuf::from);
let cr = PathBuf::from(cratefile);
info!("starting to run rustc");
use rustc::session::config::Input;
tx.send(core::run_core(paths, cfgs, externs, Input::File(cr),
- triple)).unwrap();
+ triple, maybe_sysroot)).unwrap();
});
let (mut krate, renderinfo) = rx.recv().unwrap();
info!("finished with rustc");
}
if default_passes {
- for name in DEFAULT_PASSES.iter().rev() {
+ for name in passes::DEFAULT_PASSES.iter().rev() {
passes.insert(0, name.to_string());
}
}
.unwrap_or("/tmp/rustdoc/plugins".to_string());
let mut pm = plugins::PluginManager::new(PathBuf::from(path));
for pass in &passes {
- let plugin = match PASSES.iter()
- .position(|&(p, ..)| {
- p == *pass
- }) {
- Some(i) => PASSES[i].1,
+ let plugin = match passes::PASSES.iter()
+ .position(|&(p, ..)| {
+ p == *pass
+ }) {
+ Some(i) => passes::PASSES[i].1,
None => {
error!("unknown pass {}, skipping", *pass);
continue
+++ /dev/null
-// Copyright 2012-2014 The Rust Project Developers. See the COPYRIGHT
-// file at the top-level directory of this distribution and at
-// http://rust-lang.org/COPYRIGHT.
-//
-// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
-// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
-// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
-// option. This file may not be copied, modified, or distributed
-// except according to those terms.
-
-use rustc::hir::def_id::DefId;
-use rustc::middle::privacy::AccessLevels;
-use rustc::util::nodemap::DefIdSet;
-use std::cmp;
-use std::mem;
-use std::string::String;
-use std::usize;
-
-use clean::{self, Attributes, GetDefId};
-use clean::Item;
-use plugins;
-use fold;
-use fold::DocFolder;
-use fold::FoldItem::Strip;
-
-/// Strip items marked `#[doc(hidden)]`
-pub fn strip_hidden(krate: clean::Crate) -> plugins::PluginResult {
- let mut retained = DefIdSet();
-
- // strip all #[doc(hidden)] items
- let krate = {
- struct Stripper<'a> {
- retained: &'a mut DefIdSet,
- update_retained: bool,
- }
- impl<'a> fold::DocFolder for Stripper<'a> {
- fn fold_item(&mut self, i: Item) -> Option<Item> {
- if i.attrs.list("doc").has_word("hidden") {
- debug!("found one in strip_hidden; removing");
- // use a dedicated hidden item for given item type if any
- match i.inner {
- clean::StructFieldItem(..) | clean::ModuleItem(..) => {
- // We need to recurse into stripped modules to
- // strip things like impl methods but when doing so
- // we must not add any items to the `retained` set.
- let old = mem::replace(&mut self.update_retained, false);
- let ret = Strip(self.fold_item_recur(i).unwrap()).fold();
- self.update_retained = old;
- return ret;
- }
- _ => return None,
- }
- } else {
- if self.update_retained {
- self.retained.insert(i.def_id);
- }
- }
- self.fold_item_recur(i)
- }
- }
- let mut stripper = Stripper{ retained: &mut retained, update_retained: true };
- stripper.fold_crate(krate)
- };
-
- // strip all impls referencing stripped items
- let mut stripper = ImplStripper { retained: &retained };
- stripper.fold_crate(krate)
-}
-
-/// Strip private items from the point of view of a crate or externally from a
-/// crate, specified by the `xcrate` flag.
-pub fn strip_private(mut krate: clean::Crate) -> plugins::PluginResult {
- // This stripper collects all *retained* nodes.
- let mut retained = DefIdSet();
- let access_levels = krate.access_levels.clone();
-
- // strip all private items
- {
- let mut stripper = Stripper {
- retained: &mut retained,
- access_levels: &access_levels,
- update_retained: true,
- };
- krate = ImportStripper.fold_crate(stripper.fold_crate(krate));
- }
-
- // strip all impls referencing private items
- let mut stripper = ImplStripper { retained: &retained };
- stripper.fold_crate(krate)
-}
-
-struct Stripper<'a> {
- retained: &'a mut DefIdSet,
- access_levels: &'a AccessLevels<DefId>,
- update_retained: bool,
-}
-
-impl<'a> fold::DocFolder for Stripper<'a> {
- fn fold_item(&mut self, i: Item) -> Option<Item> {
- match i.inner {
- clean::StrippedItem(..) => {
- // We need to recurse into stripped modules to strip things
- // like impl methods but when doing so we must not add any
- // items to the `retained` set.
- let old = mem::replace(&mut self.update_retained, false);
- let ret = self.fold_item_recur(i);
- self.update_retained = old;
- return ret;
- }
- // These items can all get re-exported
- clean::TypedefItem(..) | clean::StaticItem(..) |
- clean::StructItem(..) | clean::EnumItem(..) |
- clean::TraitItem(..) | clean::FunctionItem(..) |
- clean::VariantItem(..) | clean::MethodItem(..) |
- clean::ForeignFunctionItem(..) | clean::ForeignStaticItem(..) |
- clean::ConstantItem(..) | clean::UnionItem(..) => {
- if i.def_id.is_local() {
- if !self.access_levels.is_exported(i.def_id) {
- return None;
- }
- }
- }
-
- clean::StructFieldItem(..) => {
- if i.visibility != Some(clean::Public) {
- return Strip(i).fold();
- }
- }
-
- clean::ModuleItem(..) => {
- if i.def_id.is_local() && i.visibility != Some(clean::Public) {
- let old = mem::replace(&mut self.update_retained, false);
- let ret = Strip(self.fold_item_recur(i).unwrap()).fold();
- self.update_retained = old;
- return ret;
- }
- }
-
- // handled in the `strip-priv-imports` pass
- clean::ExternCrateItem(..) | clean::ImportItem(..) => {}
-
- clean::DefaultImplItem(..) | clean::ImplItem(..) => {}
-
- // tymethods/macros have no control over privacy
- clean::MacroItem(..) | clean::TyMethodItem(..) => {}
-
- // Primitives are never stripped
- clean::PrimitiveItem(..) => {}
-
- // Associated consts and types are never stripped
- clean::AssociatedConstItem(..) |
- clean::AssociatedTypeItem(..) => {}
- }
-
- let fastreturn = match i.inner {
- // nothing left to do for traits (don't want to filter their
- // methods out, visibility controlled by the trait)
- clean::TraitItem(..) => true,
-
- // implementations of traits are always public.
- clean::ImplItem(ref imp) if imp.trait_.is_some() => true,
- // Struct variant fields have inherited visibility
- clean::VariantItem(clean::Variant {
- kind: clean::StructVariant(..)
- }) => true,
- _ => false,
- };
-
- let i = if fastreturn {
- if self.update_retained {
- self.retained.insert(i.def_id);
- }
- return Some(i);
- } else {
- self.fold_item_recur(i)
- };
-
- i.and_then(|i| {
- match i.inner {
- // emptied modules have no need to exist
- clean::ModuleItem(ref m)
- if m.items.is_empty() &&
- i.doc_value().is_none() => None,
- _ => {
- if self.update_retained {
- self.retained.insert(i.def_id);
- }
- Some(i)
- }
- }
- })
- }
-}
-
-// This stripper discards all impls which reference stripped items
-struct ImplStripper<'a> {
- retained: &'a DefIdSet
-}
-
-impl<'a> fold::DocFolder for ImplStripper<'a> {
- fn fold_item(&mut self, i: Item) -> Option<Item> {
- if let clean::ImplItem(ref imp) = i.inner {
- // emptied none trait impls can be stripped
- if imp.trait_.is_none() && imp.items.is_empty() {
- return None;
- }
- if let Some(did) = imp.for_.def_id() {
- if did.is_local() && !imp.for_.is_generic() &&
- !self.retained.contains(&did)
- {
- return None;
- }
- }
- if let Some(did) = imp.trait_.def_id() {
- if did.is_local() && !self.retained.contains(&did) {
- return None;
- }
- }
- }
- self.fold_item_recur(i)
- }
-}
-
-// This stripper discards all private import statements (`use`, `extern crate`)
-struct ImportStripper;
-impl fold::DocFolder for ImportStripper {
- fn fold_item(&mut self, i: Item) -> Option<Item> {
- match i.inner {
- clean::ExternCrateItem(..) |
- clean::ImportItem(..) if i.visibility != Some(clean::Public) => None,
- _ => self.fold_item_recur(i)
- }
- }
-}
-
-pub fn strip_priv_imports(krate: clean::Crate) -> plugins::PluginResult {
- ImportStripper.fold_crate(krate)
-}
-
-pub fn unindent_comments(krate: clean::Crate) -> plugins::PluginResult {
- struct CommentCleaner;
- impl fold::DocFolder for CommentCleaner {
- fn fold_item(&mut self, mut i: Item) -> Option<Item> {
- let mut avec: Vec<clean::Attribute> = Vec::new();
- for attr in &i.attrs {
- match attr {
- &clean::NameValue(ref x, ref s)
- if "doc" == *x => {
- avec.push(clean::NameValue("doc".to_string(),
- unindent(s)))
- }
- x => avec.push(x.clone())
- }
- }
- i.attrs = avec;
- self.fold_item_recur(i)
- }
- }
- let mut cleaner = CommentCleaner;
- let krate = cleaner.fold_crate(krate);
- krate
-}
-
-pub fn collapse_docs(krate: clean::Crate) -> plugins::PluginResult {
- struct Collapser;
- impl fold::DocFolder for Collapser {
- fn fold_item(&mut self, mut i: Item) -> Option<Item> {
- let mut docstr = String::new();
- for attr in &i.attrs {
- if let clean::NameValue(ref x, ref s) = *attr {
- if "doc" == *x {
- docstr.push_str(s);
- docstr.push('\n');
- }
- }
- }
- let mut a: Vec<clean::Attribute> = i.attrs.iter().filter(|&a| match a {
- &clean::NameValue(ref x, _) if "doc" == *x => false,
- _ => true
- }).cloned().collect();
- if !docstr.is_empty() {
- a.push(clean::NameValue("doc".to_string(), docstr));
- }
- i.attrs = a;
- self.fold_item_recur(i)
- }
- }
- let mut collapser = Collapser;
- let krate = collapser.fold_crate(krate);
- krate
-}
-
-pub fn unindent(s: &str) -> String {
- let lines = s.lines().collect::<Vec<&str> >();
- let mut saw_first_line = false;
- let mut saw_second_line = false;
- let min_indent = lines.iter().fold(usize::MAX, |min_indent, line| {
-
- // After we see the first non-whitespace line, look at
- // the line we have. If it is not whitespace, and therefore
- // part of the first paragraph, then ignore the indentation
- // level of the first line
- let ignore_previous_indents =
- saw_first_line &&
- !saw_second_line &&
- !line.chars().all(|c| c.is_whitespace());
-
- let min_indent = if ignore_previous_indents {
- usize::MAX
- } else {
- min_indent
- };
-
- if saw_first_line {
- saw_second_line = true;
- }
-
- if line.chars().all(|c| c.is_whitespace()) {
- min_indent
- } else {
- saw_first_line = true;
- let mut whitespace = 0;
- line.chars().all(|char| {
- // Compare against either space or tab, ignoring whether they
- // are mixed or not
- if char == ' ' || char == '\t' {
- whitespace += 1;
- true
- } else {
- false
- }
- });
- cmp::min(min_indent, whitespace)
- }
- });
-
- if !lines.is_empty() {
- let mut unindented = vec![ lines[0].trim().to_string() ];
- unindented.extend_from_slice(&lines[1..].iter().map(|&line| {
- if line.chars().all(|c| c.is_whitespace()) {
- line.to_string()
- } else {
- assert!(line.len() >= min_indent);
- line[min_indent..].to_string()
- }
- }).collect::<Vec<_>>());
- unindented.join("\n")
- } else {
- s.to_string()
- }
-}
-
-#[cfg(test)]
-mod unindent_tests {
- use super::unindent;
-
- #[test]
- fn should_unindent() {
- let s = " line1\n line2".to_string();
- let r = unindent(&s);
- assert_eq!(r, "line1\nline2");
- }
-
- #[test]
- fn should_unindent_multiple_paragraphs() {
- let s = " line1\n\n line2".to_string();
- let r = unindent(&s);
- assert_eq!(r, "line1\n\nline2");
- }
-
- #[test]
- fn should_leave_multiple_indent_levels() {
- // Line 2 is indented another level beyond the
- // base indentation and should be preserved
- let s = " line1\n\n line2".to_string();
- let r = unindent(&s);
- assert_eq!(r, "line1\n\n line2");
- }
-
- #[test]
- fn should_ignore_first_line_indent() {
- // The first line of the first paragraph may not be indented as
- // far due to the way the doc string was written:
- //
- // #[doc = "Start way over here
- // and continue here"]
- let s = "line1\n line2".to_string();
- let r = unindent(&s);
- assert_eq!(r, "line1\nline2");
- }
-
- #[test]
- fn should_not_ignore_first_line_indent_in_a_single_line_para() {
- let s = "line1\n\n line2".to_string();
- let r = unindent(&s);
- assert_eq!(r, "line1\n\n line2");
- }
-
- #[test]
- fn should_unindent_tabs() {
- let s = "\tline1\n\tline2".to_string();
- let r = unindent(&s);
- assert_eq!(r, "line1\nline2");
- }
-
- #[test]
- fn should_trim_mixed_indentation() {
- let s = "\t line1\n\t line2".to_string();
- let r = unindent(&s);
- assert_eq!(r, "line1\nline2");
-
- let s = " \tline1\n \tline2".to_string();
- let r = unindent(&s);
- assert_eq!(r, "line1\nline2");
- }
-}
--- /dev/null
+// Copyright 2012-2014 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+use std::string::String;
+
+use clean::{self, Item};
+use plugins;
+use fold;
+use fold::DocFolder;
+
+pub fn collapse_docs(krate: clean::Crate) -> plugins::PluginResult {
+ let mut collapser = Collapser;
+ let krate = collapser.fold_crate(krate);
+ krate
+}
+
+struct Collapser;
+
+impl fold::DocFolder for Collapser {
+ fn fold_item(&mut self, mut i: Item) -> Option<Item> {
+ let mut docstr = String::new();
+ for attr in &i.attrs {
+ if let clean::NameValue(ref x, ref s) = *attr {
+ if "doc" == *x {
+ docstr.push_str(s);
+ docstr.push('\n');
+ }
+ }
+ }
+ let mut a: Vec<clean::Attribute> = i.attrs.iter().filter(|&a| match a {
+ &clean::NameValue(ref x, _) if "doc" == *x => false,
+ _ => true
+ }).cloned().collect();
+ if !docstr.is_empty() {
+ a.push(clean::NameValue("doc".to_string(), docstr));
+ }
+ i.attrs = a;
+ self.fold_item_recur(i)
+ }
+}
--- /dev/null
+// Copyright 2012-2014 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+use rustc::hir::def_id::DefId;
+use rustc::middle::privacy::AccessLevels;
+use rustc::util::nodemap::DefIdSet;
+use std::mem;
+
+use clean::{self, GetDefId, Item};
+use fold;
+use fold::FoldItem::Strip;
+use plugins;
+
+mod collapse_docs;
+pub use self::collapse_docs::collapse_docs;
+
+mod strip_hidden;
+pub use self::strip_hidden::strip_hidden;
+
+mod strip_private;
+pub use self::strip_private::strip_private;
+
+mod strip_priv_imports;
+pub use self::strip_priv_imports::strip_priv_imports;
+
+mod unindent_comments;
+pub use self::unindent_comments::unindent_comments;
+
+type Pass = (&'static str, // name
+ fn(clean::Crate) -> plugins::PluginResult, // fn
+ &'static str); // description
+
+pub const PASSES: &'static [Pass] = &[
+ ("strip-hidden", strip_hidden,
+ "strips all doc(hidden) items from the output"),
+ ("unindent-comments", unindent_comments,
+ "removes excess indentation on comments in order for markdown to like it"),
+ ("collapse-docs", collapse_docs,
+ "concatenates all document attributes into one document attribute"),
+ ("strip-private", strip_private,
+ "strips all private items from a crate which cannot be seen externally, \
+ implies strip-priv-imports"),
+ ("strip-priv-imports", strip_priv_imports,
+ "strips all private import statements (`use`, `extern crate`) from a crate"),
+];
+
+pub const DEFAULT_PASSES: &'static [&'static str] = &[
+ "strip-hidden",
+ "strip-private",
+ "collapse-docs",
+ "unindent-comments",
+];
+
+
+struct Stripper<'a> {
+ retained: &'a mut DefIdSet,
+ access_levels: &'a AccessLevels<DefId>,
+ update_retained: bool,
+}
+
+impl<'a> fold::DocFolder for Stripper<'a> {
+ fn fold_item(&mut self, i: Item) -> Option<Item> {
+ match i.inner {
+ clean::StrippedItem(..) => {
+ // We need to recurse into stripped modules to strip things
+ // like impl methods but when doing so we must not add any
+ // items to the `retained` set.
+ let old = mem::replace(&mut self.update_retained, false);
+ let ret = self.fold_item_recur(i);
+ self.update_retained = old;
+ return ret;
+ }
+ // These items can all get re-exported
+ clean::TypedefItem(..) | clean::StaticItem(..) |
+ clean::StructItem(..) | clean::EnumItem(..) |
+ clean::TraitItem(..) | clean::FunctionItem(..) |
+ clean::VariantItem(..) | clean::MethodItem(..) |
+ clean::ForeignFunctionItem(..) | clean::ForeignStaticItem(..) |
+ clean::ConstantItem(..) | clean::UnionItem(..) => {
+ if i.def_id.is_local() {
+ if !self.access_levels.is_exported(i.def_id) {
+ return None;
+ }
+ }
+ }
+
+ clean::StructFieldItem(..) => {
+ if i.visibility != Some(clean::Public) {
+ return Strip(i).fold();
+ }
+ }
+
+ clean::ModuleItem(..) => {
+ if i.def_id.is_local() && i.visibility != Some(clean::Public) {
+ let old = mem::replace(&mut self.update_retained, false);
+ let ret = Strip(self.fold_item_recur(i).unwrap()).fold();
+ self.update_retained = old;
+ return ret;
+ }
+ }
+
+ // handled in the `strip-priv-imports` pass
+ clean::ExternCrateItem(..) | clean::ImportItem(..) => {}
+
+ clean::DefaultImplItem(..) | clean::ImplItem(..) => {}
+
+ // tymethods/macros have no control over privacy
+ clean::MacroItem(..) | clean::TyMethodItem(..) => {}
+
+ // Primitives are never stripped
+ clean::PrimitiveItem(..) => {}
+
+ // Associated consts and types are never stripped
+ clean::AssociatedConstItem(..) |
+ clean::AssociatedTypeItem(..) => {}
+ }
+
+ let fastreturn = match i.inner {
+ // nothing left to do for traits (don't want to filter their
+ // methods out, visibility controlled by the trait)
+ clean::TraitItem(..) => true,
+
+ // implementations of traits are always public.
+ clean::ImplItem(ref imp) if imp.trait_.is_some() => true,
+ // Struct variant fields have inherited visibility
+ clean::VariantItem(clean::Variant {
+ kind: clean::StructVariant(..)
+ }) => true,
+ _ => false,
+ };
+
+ let i = if fastreturn {
+ if self.update_retained {
+ self.retained.insert(i.def_id);
+ }
+ return Some(i);
+ } else {
+ self.fold_item_recur(i)
+ };
+
+ i.and_then(|i| {
+ match i.inner {
+ // emptied modules have no need to exist
+ clean::ModuleItem(ref m)
+ if m.items.is_empty() &&
+ i.doc_value().is_none() => None,
+ _ => {
+ if self.update_retained {
+ self.retained.insert(i.def_id);
+ }
+ Some(i)
+ }
+ }
+ })
+ }
+}
+
+// This stripper discards all impls which reference stripped items
+struct ImplStripper<'a> {
+ retained: &'a DefIdSet
+}
+
+impl<'a> fold::DocFolder for ImplStripper<'a> {
+ fn fold_item(&mut self, i: Item) -> Option<Item> {
+ if let clean::ImplItem(ref imp) = i.inner {
+ // emptied none trait impls can be stripped
+ if imp.trait_.is_none() && imp.items.is_empty() {
+ return None;
+ }
+ if let Some(did) = imp.for_.def_id() {
+ if did.is_local() && !imp.for_.is_generic() &&
+ !self.retained.contains(&did)
+ {
+ return None;
+ }
+ }
+ if let Some(did) = imp.trait_.def_id() {
+ if did.is_local() && !self.retained.contains(&did) {
+ return None;
+ }
+ }
+ }
+ self.fold_item_recur(i)
+ }
+}
+
+// This stripper discards all private import statements (`use`, `extern crate`)
+struct ImportStripper;
+impl fold::DocFolder for ImportStripper {
+ fn fold_item(&mut self, i: Item) -> Option<Item> {
+ match i.inner {
+ clean::ExternCrateItem(..) |
+ clean::ImportItem(..) if i.visibility != Some(clean::Public) => None,
+ _ => self.fold_item_recur(i)
+ }
+ }
+}
--- /dev/null
+// Copyright 2012-2014 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+use rustc::util::nodemap::DefIdSet;
+use std::mem;
+
+use clean::{self, Attributes};
+use clean::Item;
+use plugins;
+use fold;
+use fold::DocFolder;
+use fold::FoldItem::Strip;
+use passes::ImplStripper;
+
+/// Strip items marked `#[doc(hidden)]`
+pub fn strip_hidden(krate: clean::Crate) -> plugins::PluginResult {
+ let mut retained = DefIdSet();
+
+ // strip all #[doc(hidden)] items
+ let krate = {
+ let mut stripper = Stripper{ retained: &mut retained, update_retained: true };
+ stripper.fold_crate(krate)
+ };
+
+ // strip all impls referencing stripped items
+ let mut stripper = ImplStripper { retained: &retained };
+ stripper.fold_crate(krate)
+}
+
+struct Stripper<'a> {
+ retained: &'a mut DefIdSet,
+ update_retained: bool,
+}
+
+impl<'a> fold::DocFolder for Stripper<'a> {
+ fn fold_item(&mut self, i: Item) -> Option<Item> {
+ if i.attrs.list("doc").has_word("hidden") {
+ debug!("found one in strip_hidden; removing");
+ // use a dedicated hidden item for given item type if any
+ match i.inner {
+ clean::StructFieldItem(..) | clean::ModuleItem(..) => {
+ // We need to recurse into stripped modules to
+ // strip things like impl methods but when doing so
+ // we must not add any items to the `retained` set.
+ let old = mem::replace(&mut self.update_retained, false);
+ let ret = Strip(self.fold_item_recur(i).unwrap()).fold();
+ self.update_retained = old;
+ return ret;
+ }
+ _ => return None,
+ }
+ } else {
+ if self.update_retained {
+ self.retained.insert(i.def_id);
+ }
+ }
+ self.fold_item_recur(i)
+ }
+}
--- /dev/null
+// Copyright 2012-2014 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+use clean;
+use fold::DocFolder;
+use plugins;
+use passes::ImportStripper;
+
+pub fn strip_priv_imports(krate: clean::Crate) -> plugins::PluginResult {
+ ImportStripper.fold_crate(krate)
+}
--- /dev/null
+// Copyright 2012-2014 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+use rustc::util::nodemap::DefIdSet;
+
+use clean;
+use plugins;
+use fold::DocFolder;
+use passes::{ImplStripper, ImportStripper, Stripper};
+
+/// Strip private items from the point of view of a crate or externally from a
+/// crate, specified by the `xcrate` flag.
+pub fn strip_private(mut krate: clean::Crate) -> plugins::PluginResult {
+ // This stripper collects all *retained* nodes.
+ let mut retained = DefIdSet();
+ let access_levels = krate.access_levels.clone();
+
+ // strip all private items
+ {
+ let mut stripper = Stripper {
+ retained: &mut retained,
+ access_levels: &access_levels,
+ update_retained: true,
+ };
+ krate = ImportStripper.fold_crate(stripper.fold_crate(krate));
+ }
+
+ // strip all impls referencing private items
+ let mut stripper = ImplStripper { retained: &retained };
+ stripper.fold_crate(krate)
+}
--- /dev/null
+// Copyright 2012-2014 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+use std::cmp;
+use std::string::String;
+use std::usize;
+
+use clean::{self, Item};
+use plugins;
+use fold::{self, DocFolder};
+
+pub fn unindent_comments(krate: clean::Crate) -> plugins::PluginResult {
+ let mut cleaner = CommentCleaner;
+ let krate = cleaner.fold_crate(krate);
+ krate
+}
+
+struct CommentCleaner;
+
+impl fold::DocFolder for CommentCleaner {
+ fn fold_item(&mut self, mut i: Item) -> Option<Item> {
+ let mut avec: Vec<clean::Attribute> = Vec::new();
+ for attr in &i.attrs {
+ match attr {
+ &clean::NameValue(ref x, ref s)
+ if "doc" == *x => {
+ avec.push(clean::NameValue("doc".to_string(),
+ unindent(s)))
+ }
+ x => avec.push(x.clone())
+ }
+ }
+ i.attrs = avec;
+ self.fold_item_recur(i)
+ }
+}
+
+fn unindent(s: &str) -> String {
+ let lines = s.lines().collect::<Vec<&str> >();
+ let mut saw_first_line = false;
+ let mut saw_second_line = false;
+ let min_indent = lines.iter().fold(usize::MAX, |min_indent, line| {
+
+ // After we see the first non-whitespace line, look at
+ // the line we have. If it is not whitespace, and therefore
+ // part of the first paragraph, then ignore the indentation
+ // level of the first line
+ let ignore_previous_indents =
+ saw_first_line &&
+ !saw_second_line &&
+ !line.chars().all(|c| c.is_whitespace());
+
+ let min_indent = if ignore_previous_indents {
+ usize::MAX
+ } else {
+ min_indent
+ };
+
+ if saw_first_line {
+ saw_second_line = true;
+ }
+
+ if line.chars().all(|c| c.is_whitespace()) {
+ min_indent
+ } else {
+ saw_first_line = true;
+ let mut whitespace = 0;
+ line.chars().all(|char| {
+ // Compare against either space or tab, ignoring whether they
+ // are mixed or not
+ if char == ' ' || char == '\t' {
+ whitespace += 1;
+ true
+ } else {
+ false
+ }
+ });
+ cmp::min(min_indent, whitespace)
+ }
+ });
+
+ if !lines.is_empty() {
+ let mut unindented = vec![ lines[0].trim().to_string() ];
+ unindented.extend_from_slice(&lines[1..].iter().map(|&line| {
+ if line.chars().all(|c| c.is_whitespace()) {
+ line.to_string()
+ } else {
+ assert!(line.len() >= min_indent);
+ line[min_indent..].to_string()
+ }
+ }).collect::<Vec<_>>());
+ unindented.join("\n")
+ } else {
+ s.to_string()
+ }
+}
+
+#[cfg(test)]
+mod unindent_tests {
+ use super::unindent;
+
+ #[test]
+ fn should_unindent() {
+ let s = " line1\n line2".to_string();
+ let r = unindent(&s);
+ assert_eq!(r, "line1\nline2");
+ }
+
+ #[test]
+ fn should_unindent_multiple_paragraphs() {
+ let s = " line1\n\n line2".to_string();
+ let r = unindent(&s);
+ assert_eq!(r, "line1\n\nline2");
+ }
+
+ #[test]
+ fn should_leave_multiple_indent_levels() {
+ // Line 2 is indented another level beyond the
+ // base indentation and should be preserved
+ let s = " line1\n\n line2".to_string();
+ let r = unindent(&s);
+ assert_eq!(r, "line1\n\n line2");
+ }
+
+ #[test]
+ fn should_ignore_first_line_indent() {
+ // The first line of the first paragraph may not be indented as
+ // far due to the way the doc string was written:
+ //
+ // #[doc = "Start way over here
+ // and continue here"]
+ let s = "line1\n line2".to_string();
+ let r = unindent(&s);
+ assert_eq!(r, "line1\nline2");
+ }
+
+ #[test]
+ fn should_not_ignore_first_line_indent_in_a_single_line_para() {
+ let s = "line1\n\n line2".to_string();
+ let r = unindent(&s);
+ assert_eq!(r, "line1\n\n line2");
+ }
+
+ #[test]
+ fn should_unindent_tabs() {
+ let s = "\tline1\n\tline2".to_string();
+ let r = unindent(&s);
+ assert_eq!(r, "line1\nline2");
+ }
+
+ #[test]
+ fn should_trim_mixed_indentation() {
+ let s = "\t line1\n\t line2".to_string();
+ let r = unindent(&s);
+ assert_eq!(r, "line1\nline2");
+
+ let s = " \tline1\n \tline2".to_string();
+ let r = unindent(&s);
+ assert_eq!(r, "line1\nline2");
+ }
+}
use rustc::dep_graph::DepGraph;
use rustc::hir::map as hir_map;
use rustc::session::{self, config};
-use rustc::session::config::{get_unstable_features_setting, OutputType,
- OutputTypes, Externs};
+use rustc::session::config::{OutputType, OutputTypes, Externs};
use rustc::session::search_paths::{SearchPaths, PathKind};
use rustc_back::dynamic_lib::DynamicLibrary;
use rustc_back::tempdir::TempDir;
use rustc_metadata::cstore::CStore;
use rustc_resolve::MakeGlobMap;
use syntax::codemap::CodeMap;
+use syntax::feature_gate::UnstableFeatures;
use errors;
use errors::emitter::ColorConfig;
search_paths: libs.clone(),
crate_types: vec!(config::CrateTypeDylib),
externs: externs.clone(),
- unstable_features: get_unstable_features_setting(),
+ unstable_features: UnstableFeatures::from_environment(),
..config::basic_options().clone()
};
.. config::basic_codegen_options()
},
test: as_test_harness,
- unstable_features: get_unstable_features_setting(),
+ unstable_features: UnstableFeatures::from_environment(),
..config::basic_options().clone()
};
let codemap = Rc::new(CodeMap::new());
let emitter = errors::emitter::EmitterWriter::new(box Sink(data.clone()),
Some(codemap.clone()));
- let old = io::set_panic(box Sink(data.clone()));
+ let old = io::set_panic(Some(box Sink(data.clone())));
let _bomb = Bomb(data.clone(), old.unwrap_or(box io::stdout()));
// Compile the code
}
fn escape_char(writer: &mut fmt::Write, v: char) -> EncodeResult {
- escape_str(writer, unsafe {
- str::from_utf8_unchecked(v.encode_utf8().as_slice())
- })
+ escape_str(writer, v.encode_utf8(&mut [0; 4]))
}
fn spaces(wr: &mut fmt::Write, mut n: usize) -> EncodeResult {
//
// FIXME(Gankro, pczarn): review the proof and put it all in a separate README.md
-/// A hash map implementation which uses linear probing with Robin
-/// Hood bucket stealing.
+/// A hash map implementation which uses linear probing with Robin Hood bucket
+/// stealing.
///
-/// By default, HashMap uses a somewhat slow hashing algorithm which can provide resistance
-/// to DoS attacks. Rust makes a best attempt at acquiring random numbers without IO
-/// blocking from your system. Because of this HashMap is not guaranteed to provide
-/// DoS resistance since the numbers generated might not be truly random. If you do
-/// require this behavior you can create your own hashing function using
-/// [BuildHasherDefault](../hash/struct.BuildHasherDefault.html).
+/// By default, `HashMap` uses a hashing algorithm selected to provide
+/// resistance against HashDoS attacks. The algorithm is randomly seeded, and a
+/// reasonable best-effort is made to generate this seed from a high quality,
+/// secure source of randomness provided by the host without blocking the
+/// program. Because of this, the randomness of the seed is dependant on the
+/// quality of the system's random number generator at the time it is created.
+/// In particular, seeds generated when the system's entropy pool is abnormally
+/// low such as during system boot may be of a lower quality.
+///
+/// The default hashing algorithm is currently SipHash 1-3, though this is
+/// subject to change at any point in the future. While its performance is very
+/// competitive for medium sized keys, other hashing algorithms will outperform
+/// it for small keys such as integers as well as large keys such as long
+/// strings, though those algorithms will typically *not* protect against
+/// attacks such as HashDoS.
+///
+/// The hashing algorithm can be replaced on a per-`HashMap` basis using the
+/// `HashMap::default`, `HashMap::with_hasher`, and
+/// `HashMap::with_capacity_and_hasher` methods. Many alternative algorithms
+/// are available on crates.io, such as the `fnv` crate.
///
/// It is required that the keys implement the [`Eq`] and [`Hash`] traits, although
/// this can frequently be achieved by using `#[derive(PartialEq, Eq, Hash)]`.
/// println!("{:?} has {} hp", viking, health);
/// }
/// ```
+///
+/// A HashMap with fixed list of elements can be initialized from an array:
+///
+/// ```
+/// use std::collections::HashMap;
+///
+/// fn main() {
+/// let timber_resources: HashMap<&str, i32> =
+/// [("Norway", 100),
+/// ("Denmark", 50),
+/// ("Iceland", 10)]
+/// .iter().cloned().collect();
+/// // use the values stored in map
+/// }
+/// ```
+
#[derive(Clone)]
#[stable(feature = "rust1", since = "1.0.0")]
pub struct HashMap<K, V, S = RandomState> {
/// println!("{:?}", x);
/// }
/// ```
+///
+/// HashSet with fixed list of elements can be initialized from an array:
+///
+/// ```
+/// use std::collections::HashSet;
+///
+/// fn main() {
+/// let viking_names: HashSet<&str> =
+/// [ "Einar", "Olaf", "Harald" ].iter().cloned().collect();
+/// // use the values stored in the set
+/// }
+/// ```
+
+
#[derive(Clone)]
#[stable(feature = "rust1", since = "1.0.0")]
pub struct HashSet<T, S = RandomState> {
/// around just the "table" part of the hashtable. It enforces some
/// invariants at the type level and employs some performance trickery,
/// but in general is just a tricked out `Vec<Option<u64, K, V>>`.
-#[cfg_attr(stage0, unsafe_no_drop_flag)]
pub struct RawTable<K, V> {
capacity: usize,
size: usize,
use fmt;
use io;
use path::{Path, PathBuf};
+use sys;
use sys::os as os_imp;
/// Returns the current working directory as a `PathBuf`.
///
/// This structure is created through the `std::env::args_os` method.
#[stable(feature = "env", since = "1.0.0")]
-pub struct ArgsOs { inner: os_imp::Args }
+pub struct ArgsOs { inner: sys::args::Args }
/// Returns the arguments which this program was started with (normally passed
/// via the command line).
/// ```
#[stable(feature = "env", since = "1.0.0")]
pub fn args_os() -> ArgsOs {
- ArgsOs { inner: os_imp::args() }
+ ArgsOs { inner: sys::args::args() }
}
#[stable(feature = "env", since = "1.0.0")]
/// Constants associated with the current target
#[stable(feature = "env", since = "1.0.0")]
pub mod consts {
+ use sys::env::os;
+
/// A string describing the architecture of the CPU that is currently
/// in use.
///
/// - unix
/// - windows
#[stable(feature = "env", since = "1.0.0")]
- pub const FAMILY: &'static str = super::os::FAMILY;
+ pub const FAMILY: &'static str = os::FAMILY;
/// A string describing the specific operating system in use.
/// Example value is `linux`.
/// - android
/// - windows
#[stable(feature = "env", since = "1.0.0")]
- pub const OS: &'static str = super::os::OS;
+ pub const OS: &'static str = os::OS;
/// Specifies the filename prefix used for shared libraries on this
/// platform. Example value is `lib`.
/// - lib
/// - `""` (an empty string)
#[stable(feature = "env", since = "1.0.0")]
- pub const DLL_PREFIX: &'static str = super::os::DLL_PREFIX;
+ pub const DLL_PREFIX: &'static str = os::DLL_PREFIX;
/// Specifies the filename suffix used for shared libraries on this
/// platform. Example value is `.so`.
/// - .dylib
/// - .dll
#[stable(feature = "env", since = "1.0.0")]
- pub const DLL_SUFFIX: &'static str = super::os::DLL_SUFFIX;
+ pub const DLL_SUFFIX: &'static str = os::DLL_SUFFIX;
/// Specifies the file extension used for shared libraries on this
/// platform that goes after the dot. Example value is `so`.
/// - dylib
/// - dll
#[stable(feature = "env", since = "1.0.0")]
- pub const DLL_EXTENSION: &'static str = super::os::DLL_EXTENSION;
+ pub const DLL_EXTENSION: &'static str = os::DLL_EXTENSION;
/// Specifies the filename suffix used for executable binaries on this
/// platform. Example value is `.exe`.
/// - .pexe
/// - `""` (an empty string)
#[stable(feature = "env", since = "1.0.0")]
- pub const EXE_SUFFIX: &'static str = super::os::EXE_SUFFIX;
+ pub const EXE_SUFFIX: &'static str = os::EXE_SUFFIX;
/// Specifies the file extension, if any, used for executable binaries
/// on this platform. Example value is `exe`.
/// - exe
/// - `""` (an empty string)
#[stable(feature = "env", since = "1.0.0")]
- pub const EXE_EXTENSION: &'static str = super::os::EXE_EXTENSION;
-
-}
-
-#[cfg(target_os = "linux")]
-mod os {
- pub const FAMILY: &'static str = "unix";
- pub const OS: &'static str = "linux";
- pub const DLL_PREFIX: &'static str = "lib";
- pub const DLL_SUFFIX: &'static str = ".so";
- pub const DLL_EXTENSION: &'static str = "so";
- pub const EXE_SUFFIX: &'static str = "";
- pub const EXE_EXTENSION: &'static str = "";
-}
-
-#[cfg(target_os = "macos")]
-mod os {
- pub const FAMILY: &'static str = "unix";
- pub const OS: &'static str = "macos";
- pub const DLL_PREFIX: &'static str = "lib";
- pub const DLL_SUFFIX: &'static str = ".dylib";
- pub const DLL_EXTENSION: &'static str = "dylib";
- pub const EXE_SUFFIX: &'static str = "";
- pub const EXE_EXTENSION: &'static str = "";
-}
-
-#[cfg(target_os = "ios")]
-mod os {
- pub const FAMILY: &'static str = "unix";
- pub const OS: &'static str = "ios";
- pub const DLL_PREFIX: &'static str = "lib";
- pub const DLL_SUFFIX: &'static str = ".dylib";
- pub const DLL_EXTENSION: &'static str = "dylib";
- pub const EXE_SUFFIX: &'static str = "";
- pub const EXE_EXTENSION: &'static str = "";
-}
-
-#[cfg(target_os = "freebsd")]
-mod os {
- pub const FAMILY: &'static str = "unix";
- pub const OS: &'static str = "freebsd";
- pub const DLL_PREFIX: &'static str = "lib";
- pub const DLL_SUFFIX: &'static str = ".so";
- pub const DLL_EXTENSION: &'static str = "so";
- pub const EXE_SUFFIX: &'static str = "";
- pub const EXE_EXTENSION: &'static str = "";
-}
-
-#[cfg(target_os = "dragonfly")]
-mod os {
- pub const FAMILY: &'static str = "unix";
- pub const OS: &'static str = "dragonfly";
- pub const DLL_PREFIX: &'static str = "lib";
- pub const DLL_SUFFIX: &'static str = ".so";
- pub const DLL_EXTENSION: &'static str = "so";
- pub const EXE_SUFFIX: &'static str = "";
- pub const EXE_EXTENSION: &'static str = "";
-}
-
-#[cfg(target_os = "bitrig")]
-mod os {
- pub const FAMILY: &'static str = "unix";
- pub const OS: &'static str = "bitrig";
- pub const DLL_PREFIX: &'static str = "lib";
- pub const DLL_SUFFIX: &'static str = ".so";
- pub const DLL_EXTENSION: &'static str = "so";
- pub const EXE_SUFFIX: &'static str = "";
- pub const EXE_EXTENSION: &'static str = "";
-}
-
-#[cfg(target_os = "netbsd")]
-mod os {
- pub const FAMILY: &'static str = "unix";
- pub const OS: &'static str = "netbsd";
- pub const DLL_PREFIX: &'static str = "lib";
- pub const DLL_SUFFIX: &'static str = ".so";
- pub const DLL_EXTENSION: &'static str = "so";
- pub const EXE_SUFFIX: &'static str = "";
- pub const EXE_EXTENSION: &'static str = "";
-}
-
-#[cfg(target_os = "openbsd")]
-mod os {
- pub const FAMILY: &'static str = "unix";
- pub const OS: &'static str = "openbsd";
- pub const DLL_PREFIX: &'static str = "lib";
- pub const DLL_SUFFIX: &'static str = ".so";
- pub const DLL_EXTENSION: &'static str = "so";
- pub const EXE_SUFFIX: &'static str = "";
- pub const EXE_EXTENSION: &'static str = "";
-}
-
-#[cfg(target_os = "android")]
-mod os {
- pub const FAMILY: &'static str = "unix";
- pub const OS: &'static str = "android";
- pub const DLL_PREFIX: &'static str = "lib";
- pub const DLL_SUFFIX: &'static str = ".so";
- pub const DLL_EXTENSION: &'static str = "so";
- pub const EXE_SUFFIX: &'static str = "";
- pub const EXE_EXTENSION: &'static str = "";
-}
-
-#[cfg(target_os = "solaris")]
-mod os {
- pub const FAMILY: &'static str = "unix";
- pub const OS: &'static str = "solaris";
- pub const DLL_PREFIX: &'static str = "lib";
- pub const DLL_SUFFIX: &'static str = ".so";
- pub const DLL_EXTENSION: &'static str = "so";
- pub const EXE_SUFFIX: &'static str = "";
- pub const EXE_EXTENSION: &'static str = "";
-}
-
-#[cfg(target_os = "windows")]
-mod os {
- pub const FAMILY: &'static str = "windows";
- pub const OS: &'static str = "windows";
- pub const DLL_PREFIX: &'static str = "";
- pub const DLL_SUFFIX: &'static str = ".dll";
- pub const DLL_EXTENSION: &'static str = "dll";
- pub const EXE_SUFFIX: &'static str = ".exe";
- pub const EXE_EXTENSION: &'static str = "exe";
-}
-
-#[cfg(all(target_os = "nacl", not(target_arch = "le32")))]
-mod os {
- pub const FAMILY: &'static str = "unix";
- pub const OS: &'static str = "nacl";
- pub const DLL_PREFIX: &'static str = "lib";
- pub const DLL_SUFFIX: &'static str = ".so";
- pub const DLL_EXTENSION: &'static str = "so";
- pub const EXE_SUFFIX: &'static str = ".nexe";
- pub const EXE_EXTENSION: &'static str = "nexe";
-}
-#[cfg(all(target_os = "nacl", target_arch = "le32"))]
-mod os {
- pub const FAMILY: &'static str = "unix";
- pub const OS: &'static str = "pnacl";
- pub const DLL_PREFIX: &'static str = "lib";
- pub const DLL_SUFFIX: &'static str = ".pso";
- pub const DLL_EXTENSION: &'static str = "pso";
- pub const EXE_SUFFIX: &'static str = ".pexe";
- pub const EXE_EXTENSION: &'static str = "pexe";
-}
-
-#[cfg(target_os = "emscripten")]
-mod os {
- pub const FAMILY: &'static str = "unix";
- pub const OS: &'static str = "emscripten";
- pub const DLL_PREFIX: &'static str = "lib";
- pub const DLL_SUFFIX: &'static str = ".so";
- pub const DLL_EXTENSION: &'static str = "so";
- pub const EXE_SUFFIX: &'static str = ".js";
- pub const EXE_EXTENSION: &'static str = "js";
+ pub const EXE_EXTENSION: &'static str = os::EXE_EXTENSION;
}
#[cfg(target_arch = "x86")]
pub const ARCH: &'static str = "asmjs";
}
+#[cfg(target_arch = "wasm32")]
+mod arch {
+ pub const ARCH: &'static str = "wasm32";
+}
+
#[cfg(test)]
mod tests {
use super::*;
}
#[test]
+ #[cfg_attr(target_os = "emscripten", ignore)]
fn test_var_big() {
let mut s = "".to_string();
let mut i = 0;
}
#[test]
+ #[cfg_attr(target_os = "emscripten", ignore)]
fn test_self_exe_path() {
let path = current_exe();
assert!(path.is_ok());
}
#[test]
+ #[cfg_attr(target_os = "emscripten", ignore)]
fn test_env_set_get_huge() {
let n = make_rand_name();
let s = repeat("x").take(10000).collect::<String>();
}
// Turns this `CString` into an empty string to prevent
-// memory unsafe code from working by accident.
+// memory unsafe code from working by accident. Inline
+// to prevent LLVM from optimizing it away in debug builds.
#[stable(feature = "cstring_drop", since = "1.13.0")]
impl Drop for CString {
+ #[inline]
fn drop(&mut self) {
unsafe { *self.inner.get_unchecked_mut(0) = 0; }
}
OsString { inner: Buf::from_string(String::new()) }
}
- #[cfg(unix)]
- fn _from_bytes(vec: Vec<u8>) -> Option<OsString> {
- use os::unix::ffi::OsStringExt;
- Some(OsString::from_vec(vec))
- }
-
- #[cfg(windows)]
- fn _from_bytes(vec: Vec<u8>) -> Option<OsString> {
- String::from_utf8(vec).ok().map(OsString::from)
- }
-
/// Converts to an `OsStr` slice.
#[stable(feature = "rust1", since = "1.0.0")]
pub fn as_os_str(&self) -> &OsStr {
}
}
-#[cfg(test)]
+#[cfg(all(test, not(target_os = "emscripten")))]
mod tests {
use io::prelude::*;
}
#[test]
+ #[cfg_attr(target_os = "emscripten", ignore)]
fn panic_in_write_doesnt_flush_in_drop() {
static WRITES: AtomicUsize = AtomicUsize::new(0);
#[stable(feature = "rust1", since = "1.0.0")]
fn consume(&mut self, amt: usize);
- /// Read all bytes into `buf` until the delimiter `byte` is reached.
+ /// Read all bytes into `buf` until the delimiter `byte` or EOF is reached.
///
/// This function will read bytes from the underlying stream until the
/// delimiter or EOF is found. Once found, all bytes up to, and including,
/// the delimiter (if found) will be appended to `buf`.
///
- /// If this reader is currently at EOF then this function will not modify
- /// `buf` and will return `Ok(n)` where `n` is the number of bytes which
- /// were read.
+ /// If successful, this function will return the total number of bytes read.
///
/// # Errors
///
/// up to, and including, the delimiter (if found) will be appended to
/// `buf`.
///
- /// If this reader is currently at EOF then this function will not modify
- /// `buf` and will return `Ok(n)` where `n` is the number of bytes which
- /// were read.
+ /// If successful, this function will return the total number of bytes read.
///
/// # Errors
///
fn read(&mut self, buf: &mut [u8]) -> Result<usize> {
if !self.done_first {
match self.first.read(buf)? {
- 0 => { self.done_first = true; }
+ 0 if buf.len() != 0 => { self.done_first = true; }
n => return Ok(n),
}
}
use super::repeat;
#[test]
+ #[cfg_attr(target_os = "emscripten", ignore)]
fn read_until() {
let mut buf = Cursor::new(&b"12"[..]);
let mut v = Vec::new();
cmp_bufread(chain1, chain2, &testdata[..]);
}
+ #[test]
+ fn chain_zero_length_read_is_not_eof() {
+ let a = b"A";
+ let b = b"B";
+ let mut s = String::new();
+ let mut chain = (&a[..]).chain(&b[..]);
+ chain.read(&mut []).unwrap();
+ chain.read_to_string(&mut s).unwrap();
+ assert_eq!("AB", s);
+ }
+
#[bench]
+ #[cfg_attr(target_os = "emscripten", ignore)]
fn bench_read_to_end(b: &mut test::Bencher) {
b.iter(|| {
let mut lr = repeat(1).take(10000000);
}
fn handle_ebadf<T>(r: io::Result<T>, default: T) -> io::Result<T> {
- #[cfg(windows)]
- const ERR: i32 = ::sys::c::ERROR_INVALID_HANDLE as i32;
- #[cfg(not(windows))]
- const ERR: i32 = ::libc::EBADF as i32;
+ use sys::stdio::EBADF_ERR;
match r {
- Err(ref e) if e.raw_os_error() == Some(ERR) => Ok(default),
+ Err(ref e) if e.raw_os_error() == Some(EBADF_ERR) => Ok(default),
r => r
}
}
with a more general mechanism",
issue = "0")]
#[doc(hidden)]
-pub fn set_panic(sink: Box<Write + Send>) -> Option<Box<Write + Send>> {
+pub fn set_panic(sink: Option<Box<Write + Send>>) -> Option<Box<Write + Send>> {
use panicking::LOCAL_STDERR;
use mem;
LOCAL_STDERR.with(move |slot| {
- mem::replace(&mut *slot.borrow_mut(), Some(sink))
+ mem::replace(&mut *slot.borrow_mut(), sink)
}).and_then(|mut s| {
let _ = s.flush();
Some(s)
with a more general mechanism",
issue = "0")]
#[doc(hidden)]
-pub fn set_print(sink: Box<Write + Send>) -> Option<Box<Write + Send>> {
+pub fn set_print(sink: Option<Box<Write + Send>>) -> Option<Box<Write + Send>> {
use mem;
LOCAL_STDOUT.with(move |slot| {
- mem::replace(&mut *slot.borrow_mut(), Some(sink))
+ mem::replace(&mut *slot.borrow_mut(), sink)
}).and_then(|mut s| {
let _ = s.flush();
Some(s)
use super::*;
#[test]
+ #[cfg_attr(target_os = "emscripten", ignore)]
fn panic_doesnt_poison() {
thread::spawn(|| {
let _a = stdin();
#![feature(unboxed_closures)]
#![feature(unicode)]
#![feature(unique)]
-#![cfg_attr(stage0, feature(unsafe_no_drop_flag))]
#![feature(unwind_attributes)]
#![feature(vec_push_all)]
#![feature(zero_one)]
#[macro_export]
macro_rules! cfg { ($($cfg:tt)*) => ({ /* compiler built-in */ }) }
- /// Parse the current given file as an expression.
- ///
- /// This is generally a bad idea, because it's going to behave unhygienically.
+ /// Parse the file provided in the argument as an expression or an
+ /// item according to the context. This file is located relative
+ /// to the current file (similarly to how modules are found).
+ ///
+ /// Using this macro is often a bad idea, because if the file is
+ /// parsed as an expression, it is going to be placed in the
+ /// surrounding code unhygenically. This could result in variables
+ /// or functions being different from what the file expected if
+ /// there are variables or functions that have the same name in
+ /// the current file.
///
/// # Examples
///
// Original implementation taken from rust-memchr
// Copyright 2015 Andrew Gallant, bluss and Nicolas Koch
-
-
/// A safe interface to `memchr`.
///
/// Returns the index corresponding to the first occurrence of `needle` in
/// let haystack = b"the quick brown fox";
/// assert_eq!(memchr(b'k', haystack), Some(8));
/// ```
+#[inline]
pub fn memchr(needle: u8, haystack: &[u8]) -> Option<usize> {
- // libc memchr
- #[cfg(not(target_os = "windows"))]
- fn memchr_specific(needle: u8, haystack: &[u8]) -> Option<usize> {
- use libc;
-
- let p = unsafe {
- libc::memchr(
- haystack.as_ptr() as *const libc::c_void,
- needle as libc::c_int,
- haystack.len() as libc::size_t)
- };
- if p.is_null() {
- None
- } else {
- Some(p as usize - (haystack.as_ptr() as usize))
- }
- }
-
- // use fallback on windows, since it's faster
- #[cfg(target_os = "windows")]
- fn memchr_specific(needle: u8, haystack: &[u8]) -> Option<usize> {
- fallback::memchr(needle, haystack)
- }
-
- memchr_specific(needle, haystack)
+ ::sys::memchr::memchr(needle, haystack)
}
/// A safe interface to `memrchr`.
/// let haystack = b"the quick brown fox";
/// assert_eq!(memrchr(b'o', haystack), Some(17));
/// ```
+#[inline]
pub fn memrchr(needle: u8, haystack: &[u8]) -> Option<usize> {
-
- #[cfg(target_os = "linux")]
- fn memrchr_specific(needle: u8, haystack: &[u8]) -> Option<usize> {
- use libc;
-
- // GNU's memrchr() will - unlike memchr() - error if haystack is empty.
- if haystack.is_empty() {return None}
- let p = unsafe {
- libc::memrchr(
- haystack.as_ptr() as *const libc::c_void,
- needle as libc::c_int,
- haystack.len() as libc::size_t)
- };
- if p.is_null() {
- None
- } else {
- Some(p as usize - (haystack.as_ptr() as usize))
- }
- }
-
- #[cfg(not(target_os = "linux"))]
- fn memrchr_specific(needle: u8, haystack: &[u8]) -> Option<usize> {
- fallback::memrchr(needle, haystack)
- }
-
- memrchr_specific(needle, haystack)
-}
-
-#[allow(dead_code)]
-mod fallback {
- use cmp;
- use mem;
-
- const LO_U64: u64 = 0x0101010101010101;
- const HI_U64: u64 = 0x8080808080808080;
-
- // use truncation
- const LO_USIZE: usize = LO_U64 as usize;
- const HI_USIZE: usize = HI_U64 as usize;
-
- /// Return `true` if `x` contains any zero byte.
- ///
- /// From *Matters Computational*, J. Arndt
- ///
- /// "The idea is to subtract one from each of the bytes and then look for
- /// bytes where the borrow propagated all the way to the most significant
- /// bit."
- #[inline]
- fn contains_zero_byte(x: usize) -> bool {
- x.wrapping_sub(LO_USIZE) & !x & HI_USIZE != 0
- }
-
- #[cfg(target_pointer_width = "32")]
- #[inline]
- fn repeat_byte(b: u8) -> usize {
- let mut rep = (b as usize) << 8 | b as usize;
- rep = rep << 16 | rep;
- rep
- }
-
- #[cfg(target_pointer_width = "64")]
- #[inline]
- fn repeat_byte(b: u8) -> usize {
- let mut rep = (b as usize) << 8 | b as usize;
- rep = rep << 16 | rep;
- rep = rep << 32 | rep;
- rep
- }
-
- /// Return the first index matching the byte `a` in `text`.
- pub fn memchr(x: u8, text: &[u8]) -> Option<usize> {
- // Scan for a single byte value by reading two `usize` words at a time.
- //
- // Split `text` in three parts
- // - unaligned initial part, before the first word aligned address in text
- // - body, scan by 2 words at a time
- // - the last remaining part, < 2 word size
- let len = text.len();
- let ptr = text.as_ptr();
- let usize_bytes = mem::size_of::<usize>();
-
- // search up to an aligned boundary
- let align = (ptr as usize) & (usize_bytes- 1);
- let mut offset;
- if align > 0 {
- offset = cmp::min(usize_bytes - align, len);
- if let Some(index) = text[..offset].iter().position(|elt| *elt == x) {
- return Some(index);
- }
- } else {
- offset = 0;
- }
-
- // search the body of the text
- let repeated_x = repeat_byte(x);
-
- if len >= 2 * usize_bytes {
- while offset <= len - 2 * usize_bytes {
- unsafe {
- let u = *(ptr.offset(offset as isize) as *const usize);
- let v = *(ptr.offset((offset + usize_bytes) as isize) as *const usize);
-
- // break if there is a matching byte
- let zu = contains_zero_byte(u ^ repeated_x);
- let zv = contains_zero_byte(v ^ repeated_x);
- if zu || zv {
- break;
- }
- }
- offset += usize_bytes * 2;
- }
- }
-
- // find the byte after the point the body loop stopped
- text[offset..].iter().position(|elt| *elt == x).map(|i| offset + i)
- }
-
- /// Return the last index matching the byte `a` in `text`.
- pub fn memrchr(x: u8, text: &[u8]) -> Option<usize> {
- // Scan for a single byte value by reading two `usize` words at a time.
- //
- // Split `text` in three parts
- // - unaligned tail, after the last word aligned address in text
- // - body, scan by 2 words at a time
- // - the first remaining bytes, < 2 word size
- let len = text.len();
- let ptr = text.as_ptr();
- let usize_bytes = mem::size_of::<usize>();
-
- // search to an aligned boundary
- let end_align = (ptr as usize + len) & (usize_bytes - 1);
- let mut offset;
- if end_align > 0 {
- offset = if end_align >= len { 0 } else { len - end_align };
- if let Some(index) = text[offset..].iter().rposition(|elt| *elt == x) {
- return Some(offset + index);
- }
- } else {
- offset = len;
- }
-
- // search the body of the text
- let repeated_x = repeat_byte(x);
-
- while offset >= 2 * usize_bytes {
- unsafe {
- let u = *(ptr.offset(offset as isize - 2 * usize_bytes as isize) as *const usize);
- let v = *(ptr.offset(offset as isize - usize_bytes as isize) as *const usize);
-
- // break if there is a matching byte
- let zu = contains_zero_byte(u ^ repeated_x);
- let zv = contains_zero_byte(v ^ repeated_x);
- if zu || zv {
- break;
- }
- }
- offset -= 2 * usize_bytes;
- }
-
- // find the byte before the point the body loop stopped
- text[..offset].iter().rposition(|elt| *elt == x)
- }
-
- // test fallback implementations on all platforms
- #[test]
- fn matches_one() {
- assert_eq!(Some(0), memchr(b'a', b"a"));
- }
-
- #[test]
- fn matches_begin() {
- assert_eq!(Some(0), memchr(b'a', b"aaaa"));
- }
-
- #[test]
- fn matches_end() {
- assert_eq!(Some(4), memchr(b'z', b"aaaaz"));
- }
-
- #[test]
- fn matches_nul() {
- assert_eq!(Some(4), memchr(b'\x00', b"aaaa\x00"));
- }
-
- #[test]
- fn matches_past_nul() {
- assert_eq!(Some(5), memchr(b'z', b"aaaa\x00z"));
- }
-
- #[test]
- fn no_match_empty() {
- assert_eq!(None, memchr(b'a', b""));
- }
-
- #[test]
- fn no_match() {
- assert_eq!(None, memchr(b'a', b"xyz"));
- }
-
- #[test]
- fn matches_one_reversed() {
- assert_eq!(Some(0), memrchr(b'a', b"a"));
- }
-
- #[test]
- fn matches_begin_reversed() {
- assert_eq!(Some(3), memrchr(b'a', b"aaaa"));
- }
-
- #[test]
- fn matches_end_reversed() {
- assert_eq!(Some(0), memrchr(b'z', b"zaaaa"));
- }
-
- #[test]
- fn matches_nul_reversed() {
- assert_eq!(Some(4), memrchr(b'\x00', b"aaaa\x00"));
- }
-
- #[test]
- fn matches_past_nul_reversed() {
- assert_eq!(Some(0), memrchr(b'z', b"z\x00aaaa"));
- }
-
- #[test]
- fn no_match_empty_reversed() {
- assert_eq!(None, memrchr(b'a', b""));
- }
-
- #[test]
- fn no_match_reversed() {
- assert_eq!(None, memrchr(b'a', b"xyz"));
- }
-
- #[test]
- fn each_alignment_reversed() {
- let mut data = [1u8; 64];
- let needle = 2;
- let pos = 40;
- data[pos] = needle;
- for start in 0..16 {
- assert_eq!(Some(pos - start), memrchr(needle, &data[start..]));
- }
- }
+ ::sys::memchr::memrchr(needle, haystack)
}
#[cfg(test)]
}
}
-#[cfg(test)]
+#[cfg(all(test, not(target_os = "emscripten")))]
mod tests {
use net::*;
use net::test::{tsa, sa6, sa4};
}
// Tests for this module
-#[cfg(test)]
+#[cfg(all(test, not(target_os = "emscripten")))]
mod tests {
use net::*;
use net::Ipv6MulticastScope::*;
mod tcp;
mod udp;
mod parser;
-#[cfg(test)] mod test;
+#[cfg(test)]
+mod test;
/// Possible values which can be passed to the [`shutdown`] method of
/// [`TcpStream`].
}
}
-#[cfg(test)]
+#[cfg(all(test, not(target_os = "emscripten")))]
mod tests {
use io::ErrorKind;
use io::prelude::*;
// option. This file may not be copied, modified, or distributed
// except according to those terms.
+#[allow(dead_code)] // not used on emscripten
+
use env;
use net::{SocketAddr, SocketAddrV4, SocketAddrV6, Ipv4Addr, Ipv6Addr, ToSocketAddrs};
use sync::atomic::{AtomicUsize, Ordering};
}
}
-#[cfg(test)]
+#[cfg(all(test, not(target_os = "emscripten")))]
mod tests {
use io::ErrorKind;
use net::*;
--- /dev/null
+// Copyright 2016 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+#![stable(feature = "metadata_ext", since = "1.1.0")]
+
+use libc;
+
+use fs::Metadata;
+use sys_common::AsInner;
+
+#[allow(deprecated)]
+use os::haiku::raw;
+
+/// OS-specific extension methods for `fs::Metadata`
+#[stable(feature = "metadata_ext", since = "1.1.0")]
+pub trait MetadataExt {
+ /// Gain a reference to the underlying `stat` structure which contains
+ /// the raw information returned by the OS.
+ ///
+ /// The contents of the returned `stat` are **not** consistent across
+ /// Unix platforms. The `os::unix::fs::MetadataExt` trait contains the
+ /// cross-Unix abstractions contained within the raw stat.
+ #[stable(feature = "metadata_ext", since = "1.1.0")]
+ #[rustc_deprecated(since = "1.8.0",
+ reason = "deprecated in favor of the accessor \
+ methods of this trait")]
+ #[allow(deprecated)]
+ fn as_raw_stat(&self) -> &raw::stat;
+
+ #[stable(feature = "metadata_ext2", since = "1.8.0")]
+ fn st_dev(&self) -> u64;
+ #[stable(feature = "metadata_ext2", since = "1.8.0")]
+ fn st_ino(&self) -> u64;
+ #[stable(feature = "metadata_ext2", since = "1.8.0")]
+ fn st_mode(&self) -> u32;
+ #[stable(feature = "metadata_ext2", since = "1.8.0")]
+ fn st_nlink(&self) -> u64;
+ #[stable(feature = "metadata_ext2", since = "1.8.0")]
+ fn st_uid(&self) -> u32;
+ #[stable(feature = "metadata_ext2", since = "1.8.0")]
+ fn st_gid(&self) -> u32;
+ #[stable(feature = "metadata_ext2", since = "1.8.0")]
+ fn st_rdev(&self) -> u64;
+ #[stable(feature = "metadata_ext2", since = "1.8.0")]
+ fn st_size(&self) -> u64;
+ #[stable(feature = "metadata_ext2", since = "1.8.0")]
+ fn st_atime(&self) -> i64;
+ #[stable(feature = "metadata_ext2", since = "1.8.0")]
+ fn st_atime_nsec(&self) -> i64;
+ #[stable(feature = "metadata_ext2", since = "1.8.0")]
+ fn st_mtime(&self) -> i64;
+ #[stable(feature = "metadata_ext2", since = "1.8.0")]
+ fn st_mtime_nsec(&self) -> i64;
+ #[stable(feature = "metadata_ext2", since = "1.8.0")]
+ fn st_ctime(&self) -> i64;
+ #[stable(feature = "metadata_ext2", since = "1.8.0")]
+ fn st_ctime_nsec(&self) -> i64;
+ #[stable(feature = "metadata_ext2", since = "1.8.0")]
+ fn st_crtime(&self) -> i64;
+ #[stable(feature = "metadata_ext2", since = "1.8.0")]
+ fn st_crtime_nsec(&self) -> i64;
+ #[stable(feature = "metadata_ext2", since = "1.8.0")]
+ fn st_blksize(&self) -> u64;
+ #[stable(feature = "metadata_ext2", since = "1.8.0")]
+ fn st_blocks(&self) -> u64;
+}
+
+#[stable(feature = "metadata_ext", since = "1.1.0")]
+impl MetadataExt for Metadata {
+ #[allow(deprecated)]
+ fn as_raw_stat(&self) -> &raw::stat {
+ unsafe {
+ &*(self.as_inner().as_inner() as *const libc::stat
+ as *const raw::stat)
+ }
+ }
+ fn st_dev(&self) -> u64 {
+ self.as_inner().as_inner().st_dev as u64
+ }
+ fn st_ino(&self) -> u64 {
+ self.as_inner().as_inner().st_ino as u64
+ }
+ fn st_mode(&self) -> u32 {
+ self.as_inner().as_inner().st_mode as u32
+ }
+ fn st_nlink(&self) -> u64 {
+ self.as_inner().as_inner().st_nlink as u64
+ }
+ fn st_uid(&self) -> u32 {
+ self.as_inner().as_inner().st_uid as u32
+ }
+ fn st_gid(&self) -> u32 {
+ self.as_inner().as_inner().st_gid as u32
+ }
+ fn st_rdev(&self) -> u64 {
+ self.as_inner().as_inner().st_rdev as u64
+ }
+ fn st_size(&self) -> u64 {
+ self.as_inner().as_inner().st_size as u64
+ }
+ fn st_atime(&self) -> i64 {
+ self.as_inner().as_inner().st_atime as i64
+ }
+ fn st_atime_nsec(&self) -> i64 {
+ self.as_inner().as_inner().st_atime_nsec as i64
+ }
+ fn st_mtime(&self) -> i64 {
+ self.as_inner().as_inner().st_mtime as i64
+ }
+ fn st_mtime_nsec(&self) -> i64 {
+ self.as_inner().as_inner().st_mtime_nsec as i64
+ }
+ fn st_ctime(&self) -> i64 {
+ self.as_inner().as_inner().st_ctime as i64
+ }
+ fn st_ctime_nsec(&self) -> i64 {
+ self.as_inner().as_inner().st_ctime_nsec as i64
+ }
+ fn st_crtime(&self) -> i64 {
+ self.as_inner().as_inner().st_crtime as i64
+ }
+ fn st_crtime_nsec(&self) -> i64 {
+ self.as_inner().as_inner().st_crtime_nsec as i64
+ }
+ fn st_blksize(&self) -> u64 {
+ self.as_inner().as_inner().st_blksize as u64
+ }
+ fn st_blocks(&self) -> u64 {
+ self.as_inner().as_inner().st_blocks as u64
+ }
+}
--- /dev/null
+// Copyright 2015 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+//! Haiku-specific definitions
+
+#![stable(feature = "raw_ext", since = "1.1.0")]
+
+pub mod raw;
+pub mod fs;
--- /dev/null
+// Copyright 2015 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+//! Haiku-specific raw type definitions
+
+#![stable(feature = "raw_ext", since = "1.1.0")]
+
+#![allow(deprecated)]
+
+use os::raw::{c_long};
+use os::unix::raw::{uid_t, gid_t};
+
+// Use the direct definition of usize, instead of uintptr_t like in libc
+#[stable(feature = "pthread_t", since = "1.8.0")] pub type pthread_t = usize;
+
+#[stable(feature = "raw_ext", since = "1.1.0")] pub type blkcnt_t = i64;
+#[stable(feature = "raw_ext", since = "1.1.0")] pub type blksize_t = i32;
+#[stable(feature = "raw_ext", since = "1.1.0")] pub type dev_t = i32;
+#[stable(feature = "raw_ext", since = "1.1.0")] pub type ino_t = i64;
+#[stable(feature = "raw_ext", since = "1.1.0")] pub type mode_t = u32;
+#[stable(feature = "raw_ext", since = "1.1.0")] pub type nlink_t = i32;
+#[stable(feature = "raw_ext", since = "1.1.0")] pub type off_t = i64;
+#[stable(feature = "raw_ext", since = "1.1.0")] pub type time_t = i32;
+
+#[repr(C)]
+#[derive(Clone)]
+#[stable(feature = "raw_ext", since = "1.1.0")]
+pub struct stat {
+ #[stable(feature = "raw_ext", since = "1.1.0")]
+ pub st_dev: dev_t,
+ #[stable(feature = "raw_ext", since = "1.1.0")]
+ pub st_ino: ino_t,
+ #[stable(feature = "raw_ext", since = "1.1.0")]
+ pub st_mode: mode_t,
+ #[stable(feature = "raw_ext", since = "1.1.0")]
+ pub st_nlink: nlink_t,
+ #[stable(feature = "raw_ext", since = "1.1.0")]
+ pub st_uid: uid_t,
+ #[stable(feature = "raw_ext", since = "1.1.0")]
+ pub st_gid: gid_t,
+ #[stable(feature = "raw_ext", since = "1.1.0")]
+ pub st_size: off_t,
+ #[stable(feature = "raw_ext", since = "1.1.0")]
+ pub st_rdev: dev_t,
+ #[stable(feature = "raw_ext", since = "1.1.0")]
+ pub st_blksize: blksize_t,
+ #[stable(feature = "raw_ext", since = "1.1.0")]
+ pub st_atime: time_t,
+ #[stable(feature = "raw_ext", since = "1.1.0")]
+ pub st_atime_nsec: c_long,
+ #[stable(feature = "raw_ext", since = "1.1.0")]
+ pub st_mtime: time_t,
+ #[stable(feature = "raw_ext", since = "1.1.0")]
+ pub st_mtime_nsec: c_long,
+ #[stable(feature = "raw_ext", since = "1.1.0")]
+ pub st_ctime: time_t,
+ #[stable(feature = "raw_ext", since = "1.1.0")]
+ pub st_ctime_nsec: c_long,
+ #[stable(feature = "raw_ext", since = "1.1.0")]
+ pub st_crtime: time_t,
+ #[stable(feature = "raw_ext", since = "1.1.0")]
+ pub st_crtime_nsec: c_long,
+ #[stable(feature = "raw_ext", since = "1.1.0")]
+ pub st_type: u32,
+ #[stable(feature = "raw_ext", since = "1.1.0")]
+ pub st_blocks: blkcnt_t,
+}
target_arch = "le32",
target_arch = "powerpc",
target_arch = "arm",
- target_arch = "asmjs"))]
+ target_arch = "asmjs",
+ target_arch = "wasm32"))]
mod arch {
use os::raw::{c_long, c_short, c_uint};
#[cfg(target_os = "bitrig")] pub mod bitrig;
#[cfg(target_os = "dragonfly")] pub mod dragonfly;
#[cfg(target_os = "freebsd")] pub mod freebsd;
+#[cfg(target_os = "haiku")] pub mod haiku;
#[cfg(target_os = "ios")] pub mod ios;
#[cfg(target_os = "linux")] pub mod linux;
#[cfg(target_os = "macos")] pub mod macos;
use ffi::{OsStr, OsString};
-use self::platform::{is_sep_byte, is_verbatim_sep, MAIN_SEP_STR, parse_prefix};
+use sys::path::{is_sep_byte, is_verbatim_sep, MAIN_SEP_STR, parse_prefix};
////////////////////////////////////////////////////////////////////////////////
// GENERAL NOTES
// OsStr APIs for parsing, but it will take a while for those to become
// available.
-////////////////////////////////////////////////////////////////////////////////
-// Platform-specific definitions
-////////////////////////////////////////////////////////////////////////////////
-
-// The following modules give the most basic tools for parsing paths on various
-// platforms. The bulk of the code is devoted to parsing prefixes on Windows.
-
-#[cfg(unix)]
-mod platform {
- use super::Prefix;
- use ffi::OsStr;
-
- #[inline]
- pub fn is_sep_byte(b: u8) -> bool {
- b == b'/'
- }
-
- #[inline]
- pub fn is_verbatim_sep(b: u8) -> bool {
- b == b'/'
- }
-
- pub fn parse_prefix(_: &OsStr) -> Option<Prefix> {
- None
- }
-
- pub const MAIN_SEP_STR: &'static str = "/";
- pub const MAIN_SEP: char = '/';
-}
-
-#[cfg(windows)]
-mod platform {
- use ascii::*;
-
- use super::{os_str_as_u8_slice, u8_slice_as_os_str, Prefix};
- use ffi::OsStr;
-
- #[inline]
- pub fn is_sep_byte(b: u8) -> bool {
- b == b'/' || b == b'\\'
- }
-
- #[inline]
- pub fn is_verbatim_sep(b: u8) -> bool {
- b == b'\\'
- }
-
- pub fn parse_prefix<'a>(path: &'a OsStr) -> Option<Prefix> {
- use super::Prefix::*;
- unsafe {
- // The unsafety here stems from converting between &OsStr and &[u8]
- // and back. This is safe to do because (1) we only look at ASCII
- // contents of the encoding and (2) new &OsStr values are produced
- // only from ASCII-bounded slices of existing &OsStr values.
- let mut path = os_str_as_u8_slice(path);
-
- if path.starts_with(br"\\") {
- // \\
- path = &path[2..];
- if path.starts_with(br"?\") {
- // \\?\
- path = &path[2..];
- if path.starts_with(br"UNC\") {
- // \\?\UNC\server\share
- path = &path[4..];
- let (server, share) = match parse_two_comps(path, is_verbatim_sep) {
- Some((server, share)) =>
- (u8_slice_as_os_str(server), u8_slice_as_os_str(share)),
- None => (u8_slice_as_os_str(path), u8_slice_as_os_str(&[])),
- };
- return Some(VerbatimUNC(server, share));
- } else {
- // \\?\path
- let idx = path.iter().position(|&b| b == b'\\');
- if idx == Some(2) && path[1] == b':' {
- let c = path[0];
- if c.is_ascii() && (c as char).is_alphabetic() {
- // \\?\C:\ path
- return Some(VerbatimDisk(c.to_ascii_uppercase()));
- }
- }
- let slice = &path[..idx.unwrap_or(path.len())];
- return Some(Verbatim(u8_slice_as_os_str(slice)));
- }
- } else if path.starts_with(b".\\") {
- // \\.\path
- path = &path[2..];
- let pos = path.iter().position(|&b| b == b'\\');
- let slice = &path[..pos.unwrap_or(path.len())];
- return Some(DeviceNS(u8_slice_as_os_str(slice)));
- }
- match parse_two_comps(path, is_sep_byte) {
- Some((server, share)) if !server.is_empty() && !share.is_empty() => {
- // \\server\share
- return Some(UNC(u8_slice_as_os_str(server), u8_slice_as_os_str(share)));
- }
- _ => (),
- }
- } else if path.get(1) == Some(& b':') {
- // C:
- let c = path[0];
- if c.is_ascii() && (c as char).is_alphabetic() {
- return Some(Disk(c.to_ascii_uppercase()));
- }
- }
- return None;
- }
-
- fn parse_two_comps(mut path: &[u8], f: fn(u8) -> bool) -> Option<(&[u8], &[u8])> {
- let first = match path.iter().position(|x| f(*x)) {
- None => return None,
- Some(x) => &path[..x],
- };
- path = &path[(first.len() + 1)..];
- let idx = path.iter().position(|x| f(*x));
- let second = &path[..idx.unwrap_or(path.len())];
- Some((first, second))
- }
- }
-
- pub const MAIN_SEP_STR: &'static str = "\\";
- pub const MAIN_SEP: char = '\\';
-}
-
////////////////////////////////////////////////////////////////////////////////
// Windows Prefixes
////////////////////////////////////////////////////////////////////////////////
/// The primary separator for the current platform
#[stable(feature = "rust1", since = "1.0.0")]
-pub const MAIN_SEPARATOR: char = platform::MAIN_SEP;
+pub const MAIN_SEPARATOR: char = ::sys::path::MAIN_SEP;
////////////////////////////////////////////////////////////////////////////////
// Misc helpers
// option. This file may not be copied, modified, or distributed
// except according to those terms.
-//! Working with processes.
+//! A module for working with processes.
+//!
+//! # Examples
+//!
+//! Basic usage where we try to execute the `cat` shell command:
+//!
+//! ```should_panic
+//! use std::process::Command;
+//!
+//! let mut child = Command::new("/bin/cat")
+//! .arg("file.txt")
+//! .spawn()
+//! .expect("failed to execute child");
+//!
+//! let ecode = child.wait()
+//! .expect("failed to wait on child");
+//!
+//! assert!(ecode.success());
+//! ```
#![stable(feature = "process", since = "1.0.0")]
::sys::os::exit(code)
}
-#[cfg(test)]
+#[cfg(all(test, not(target_os = "emscripten")))]
mod tests {
use io::prelude::*;
}
#[test]
+ #[cfg_attr(target_os = "emscripten", ignore)]
fn test_os_rng_tasks() {
let mut txs = vec!();
thread_info::set(main_guard, thread);
// Store our args if necessary in a squirreled away location
- sys_common::args::init(argc, argv);
+ sys::args::init(argc, argv);
// Let's run some code!
let res = panic::catch_unwind(mem::transmute::<_, fn()>(main));
#[cfg(target_os = "ios")]
#[link(name = "System")]
extern {}
+
+#[cfg(target_os = "haiku")]
+#[link(name = "network")]
+extern {}
use thread;
#[test]
+ #[cfg_attr(target_os = "emscripten", ignore)]
fn test_barrier() {
const N: usize = 10;
}
#[test]
+ #[cfg_attr(target_os = "emscripten", ignore)]
fn notify_one() {
let m = Arc::new(Mutex::new(()));
let m2 = m.clone();
}
#[test]
+ #[cfg_attr(target_os = "emscripten", ignore)]
fn notify_all() {
const N: usize = 10;
}
#[test]
+ #[cfg_attr(target_os = "emscripten", ignore)]
fn wait_timeout_ms() {
let m = Arc::new(Mutex::new(()));
let m2 = m.clone();
#[test]
#[should_panic]
+ #[cfg_attr(target_os = "emscripten", ignore)]
fn two_mutexes() {
let m = Arc::new(Mutex::new(()));
let m2 = m.clone();
}
}
-#[cfg(test)]
+#[cfg(all(test, not(target_os = "emscripten")))]
mod tests {
use env;
use super::*;
}
}
-#[cfg(test)]
+#[cfg(all(test, not(target_os = "emscripten")))]
mod sync_tests {
use env;
use thread;
}
}
-#[cfg(test)]
+#[cfg(all(test, not(target_os = "emscripten")))]
mod tests {
use sync::mpsc::channel;
use super::{Queue, Data, Empty, Inconsistent};
}
}
-#[cfg(test)]
#[allow(unused_imports)]
+#[cfg(all(test, not(target_os = "emscripten")))]
mod tests {
use thread;
use sync::mpsc::*;
}
}
-#[cfg(test)]
+#[cfg(all(test, not(target_os = "emscripten")))]
mod tests {
use sync::Arc;
use super::Queue;
&guard.__lock.poison
}
-#[cfg(test)]
+#[cfg(all(test, not(target_os = "emscripten")))]
mod tests {
use sync::mpsc::channel;
use sync::{Arc, Mutex, Condvar};
}
}
-#[cfg(test)]
+#[cfg(all(test, not(target_os = "emscripten")))]
mod tests {
use panic;
use sync::mpsc::channel;
}
}
-#[cfg(test)]
+#[cfg(all(test, not(target_os = "emscripten")))]
mod tests {
#![allow(deprecated)] // rand
+++ /dev/null
-// Copyright 2012-2015 The Rust Project Developers. See the COPYRIGHT
-// file at the top-level directory of this distribution and at
-// http://rust-lang.org/COPYRIGHT.
-//
-// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
-// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
-// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
-// option. This file may not be copied, modified, or distributed
-// except according to those terms.
-
-//! Global storage for command line arguments
-//!
-//! The current incarnation of the Rust runtime expects for
-//! the processes `argc` and `argv` arguments to be stored
-//! in a globally-accessible location for use by the `os` module.
-//!
-//! Only valid to call on Linux. Mac and Windows use syscalls to
-//! discover the command line arguments.
-//!
-//! FIXME #7756: Would be nice for this to not exist.
-
-#![allow(dead_code)] // different code on OSX/linux/etc
-
-/// One-time global initialization.
-pub unsafe fn init(argc: isize, argv: *const *const u8) { imp::init(argc, argv) }
-
-/// One-time global cleanup.
-pub unsafe fn cleanup() { imp::cleanup() }
-
-/// Make a clone of the global arguments.
-pub fn clone() -> Option<Vec<Vec<u8>>> { imp::clone() }
-
-#[cfg(any(target_os = "linux",
- target_os = "android",
- target_os = "freebsd",
- target_os = "dragonfly",
- target_os = "bitrig",
- target_os = "netbsd",
- target_os = "openbsd",
- target_os = "solaris",
- target_os = "emscripten"))]
-mod imp {
- use libc::c_char;
- use mem;
- use ffi::CStr;
-
- use sys_common::mutex::Mutex;
-
- static mut GLOBAL_ARGS_PTR: usize = 0;
- static LOCK: Mutex = Mutex::new();
-
- pub unsafe fn init(argc: isize, argv: *const *const u8) {
- let args = (0..argc).map(|i| {
- CStr::from_ptr(*argv.offset(i) as *const c_char).to_bytes().to_vec()
- }).collect();
-
- LOCK.lock();
- let ptr = get_global_ptr();
- assert!((*ptr).is_none());
- (*ptr) = Some(box args);
- LOCK.unlock();
- }
-
- pub unsafe fn cleanup() {
- LOCK.lock();
- *get_global_ptr() = None;
- LOCK.unlock();
- }
-
- pub fn clone() -> Option<Vec<Vec<u8>>> {
- unsafe {
- LOCK.lock();
- let ptr = get_global_ptr();
- let ret = (*ptr).as_ref().map(|s| (**s).clone());
- LOCK.unlock();
- return ret
- }
- }
-
- fn get_global_ptr() -> *mut Option<Box<Vec<Vec<u8>>>> {
- unsafe { mem::transmute(&GLOBAL_ARGS_PTR) }
- }
-
-}
-
-#[cfg(any(target_os = "macos",
- target_os = "ios",
- target_os = "windows"))]
-mod imp {
- pub unsafe fn init(_argc: isize, _argv: *const *const u8) {
- }
-
- pub fn cleanup() {
- }
-
- pub fn clone() -> Option<Vec<Vec<u8>>> {
- panic!()
- }
-}
}
#[cfg(test)]
+#[allow(dead_code)] // not used on emscripten
pub mod test {
use path::{Path, PathBuf};
use env;
}
#[bench]
+ #[cfg_attr(target_os = "emscripten", ignore)]
fn bench_uninitialized(b: &mut ::test::Bencher) {
b.iter(|| {
let mut lr = repeat(1).take(10000000);
--- /dev/null
+// Copyright 2015 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+//
+// Original implementation taken from rust-memchr
+// Copyright 2015 Andrew Gallant, bluss and Nicolas Koch
+
+#[allow(dead_code)]
+pub mod fallback {
+ use cmp;
+ use mem;
+
+ const LO_U64: u64 = 0x0101010101010101;
+ const HI_U64: u64 = 0x8080808080808080;
+
+ // use truncation
+ const LO_USIZE: usize = LO_U64 as usize;
+ const HI_USIZE: usize = HI_U64 as usize;
+
+ /// Return `true` if `x` contains any zero byte.
+ ///
+ /// From *Matters Computational*, J. Arndt
+ ///
+ /// "The idea is to subtract one from each of the bytes and then look for
+ /// bytes where the borrow propagated all the way to the most significant
+ /// bit."
+ #[inline]
+ fn contains_zero_byte(x: usize) -> bool {
+ x.wrapping_sub(LO_USIZE) & !x & HI_USIZE != 0
+ }
+
+ #[cfg(target_pointer_width = "32")]
+ #[inline]
+ fn repeat_byte(b: u8) -> usize {
+ let mut rep = (b as usize) << 8 | b as usize;
+ rep = rep << 16 | rep;
+ rep
+ }
+
+ #[cfg(target_pointer_width = "64")]
+ #[inline]
+ fn repeat_byte(b: u8) -> usize {
+ let mut rep = (b as usize) << 8 | b as usize;
+ rep = rep << 16 | rep;
+ rep = rep << 32 | rep;
+ rep
+ }
+
+ /// Return the first index matching the byte `a` in `text`.
+ pub fn memchr(x: u8, text: &[u8]) -> Option<usize> {
+ // Scan for a single byte value by reading two `usize` words at a time.
+ //
+ // Split `text` in three parts
+ // - unaligned initial part, before the first word aligned address in text
+ // - body, scan by 2 words at a time
+ // - the last remaining part, < 2 word size
+ let len = text.len();
+ let ptr = text.as_ptr();
+ let usize_bytes = mem::size_of::<usize>();
+
+ // search up to an aligned boundary
+ let align = (ptr as usize) & (usize_bytes- 1);
+ let mut offset;
+ if align > 0 {
+ offset = cmp::min(usize_bytes - align, len);
+ if let Some(index) = text[..offset].iter().position(|elt| *elt == x) {
+ return Some(index);
+ }
+ } else {
+ offset = 0;
+ }
+
+ // search the body of the text
+ let repeated_x = repeat_byte(x);
+
+ if len >= 2 * usize_bytes {
+ while offset <= len - 2 * usize_bytes {
+ unsafe {
+ let u = *(ptr.offset(offset as isize) as *const usize);
+ let v = *(ptr.offset((offset + usize_bytes) as isize) as *const usize);
+
+ // break if there is a matching byte
+ let zu = contains_zero_byte(u ^ repeated_x);
+ let zv = contains_zero_byte(v ^ repeated_x);
+ if zu || zv {
+ break;
+ }
+ }
+ offset += usize_bytes * 2;
+ }
+ }
+
+ // find the byte after the point the body loop stopped
+ text[offset..].iter().position(|elt| *elt == x).map(|i| offset + i)
+ }
+
+ /// Return the last index matching the byte `a` in `text`.
+ pub fn memrchr(x: u8, text: &[u8]) -> Option<usize> {
+ // Scan for a single byte value by reading two `usize` words at a time.
+ //
+ // Split `text` in three parts
+ // - unaligned tail, after the last word aligned address in text
+ // - body, scan by 2 words at a time
+ // - the first remaining bytes, < 2 word size
+ let len = text.len();
+ let ptr = text.as_ptr();
+ let usize_bytes = mem::size_of::<usize>();
+
+ // search to an aligned boundary
+ let end_align = (ptr as usize + len) & (usize_bytes - 1);
+ let mut offset;
+ if end_align > 0 {
+ offset = if end_align >= len { 0 } else { len - end_align };
+ if let Some(index) = text[offset..].iter().rposition(|elt| *elt == x) {
+ return Some(offset + index);
+ }
+ } else {
+ offset = len;
+ }
+
+ // search the body of the text
+ let repeated_x = repeat_byte(x);
+
+ while offset >= 2 * usize_bytes {
+ unsafe {
+ let u = *(ptr.offset(offset as isize - 2 * usize_bytes as isize) as *const usize);
+ let v = *(ptr.offset(offset as isize - usize_bytes as isize) as *const usize);
+
+ // break if there is a matching byte
+ let zu = contains_zero_byte(u ^ repeated_x);
+ let zv = contains_zero_byte(v ^ repeated_x);
+ if zu || zv {
+ break;
+ }
+ }
+ offset -= 2 * usize_bytes;
+ }
+
+ // find the byte before the point the body loop stopped
+ text[..offset].iter().rposition(|elt| *elt == x)
+ }
+
+ // test fallback implementations on all platforms
+ #[test]
+ fn matches_one() {
+ assert_eq!(Some(0), memchr(b'a', b"a"));
+ }
+
+ #[test]
+ fn matches_begin() {
+ assert_eq!(Some(0), memchr(b'a', b"aaaa"));
+ }
+
+ #[test]
+ fn matches_end() {
+ assert_eq!(Some(4), memchr(b'z', b"aaaaz"));
+ }
+
+ #[test]
+ fn matches_nul() {
+ assert_eq!(Some(4), memchr(b'\x00', b"aaaa\x00"));
+ }
+
+ #[test]
+ fn matches_past_nul() {
+ assert_eq!(Some(5), memchr(b'z', b"aaaa\x00z"));
+ }
+
+ #[test]
+ fn no_match_empty() {
+ assert_eq!(None, memchr(b'a', b""));
+ }
+
+ #[test]
+ fn no_match() {
+ assert_eq!(None, memchr(b'a', b"xyz"));
+ }
+
+ #[test]
+ fn matches_one_reversed() {
+ assert_eq!(Some(0), memrchr(b'a', b"a"));
+ }
+
+ #[test]
+ fn matches_begin_reversed() {
+ assert_eq!(Some(3), memrchr(b'a', b"aaaa"));
+ }
+
+ #[test]
+ fn matches_end_reversed() {
+ assert_eq!(Some(0), memrchr(b'z', b"zaaaa"));
+ }
+
+ #[test]
+ fn matches_nul_reversed() {
+ assert_eq!(Some(4), memrchr(b'\x00', b"aaaa\x00"));
+ }
+
+ #[test]
+ fn matches_past_nul_reversed() {
+ assert_eq!(Some(0), memrchr(b'z', b"z\x00aaaa"));
+ }
+
+ #[test]
+ fn no_match_empty_reversed() {
+ assert_eq!(None, memrchr(b'a', b""));
+ }
+
+ #[test]
+ fn no_match_reversed() {
+ assert_eq!(None, memrchr(b'a', b"xyz"));
+ }
+
+ #[test]
+ fn each_alignment_reversed() {
+ let mut data = [1u8; 64];
+ let needle = 2;
+ let pos = 40;
+ data[pos] = needle;
+ for start in 0..16 {
+ assert_eq!(Some(pos - start), memrchr(needle, &data[start..]));
+ }
+ }
+}
})
}
-pub mod args;
pub mod at_exit_imp;
#[cfg(any(not(cargobuild), feature = "backtrace"))]
pub mod backtrace;
pub mod condvar;
pub mod io;
+pub mod memchr;
pub mod mutex;
pub mod net;
pub mod poison;
pub fn cleanup() {
static CLEANUP: Once = Once::new();
CLEANUP.call_once(|| unsafe {
- args::cleanup();
+ sys::args::cleanup();
sys::stack_overflow::cleanup();
at_exit_imp::cleanup();
});
#[cfg(any(target_os = "dragonfly", target_os = "freebsd",
target_os = "ios", target_os = "macos",
target_os = "openbsd", target_os = "netbsd",
- target_os = "solaris"))]
+ target_os = "solaris", target_os = "haiku"))]
use sys::net::netc::IPV6_JOIN_GROUP as IPV6_ADD_MEMBERSHIP;
#[cfg(not(any(target_os = "dragonfly", target_os = "freebsd",
target_os = "ios", target_os = "macos",
target_os = "openbsd", target_os = "netbsd",
- target_os = "solaris")))]
+ target_os = "solaris", taget_os = "haiku")))]
use sys::net::netc::IPV6_ADD_MEMBERSHIP;
#[cfg(any(target_os = "dragonfly", target_os = "freebsd",
target_os = "ios", target_os = "macos",
target_os = "openbsd", target_os = "netbsd",
- target_os = "solaris"))]
+ target_os = "solaris", target_os = "haiku"))]
use sys::net::netc::IPV6_LEAVE_GROUP as IPV6_DROP_MEMBERSHIP;
#[cfg(not(any(target_os = "dragonfly", target_os = "freebsd",
target_os = "ios", target_os = "macos",
target_os = "openbsd", target_os = "netbsd",
- target_os = "solaris")))]
+ target_os = "solaris", target_os = "haiku")))]
use sys::net::netc::IPV6_DROP_MEMBERSHIP;
+#[cfg(target_os = "linux")]
+use libc::MSG_NOSIGNAL;
+#[cfg(not(target_os = "linux"))]
+const MSG_NOSIGNAL: c_int = 0x0; // unused dummy value
+
////////////////////////////////////////////////////////////////////////////////
// sockaddr and misc bindings
////////////////////////////////////////////////////////////////////////////////
c::send(*self.inner.as_inner(),
buf.as_ptr() as *const c_void,
len,
- 0)
+ MSG_NOSIGNAL)
})?;
Ok(ret as usize)
}
let ret = cvt(unsafe {
c::sendto(*self.inner.as_inner(),
buf.as_ptr() as *const c_void, len,
- 0, dstp, dstlen)
+ MSG_NOSIGNAL, dstp, dstlen)
})?;
Ok(ret as usize)
}
c::send(*self.inner.as_inner(),
buf.as_ptr() as *const c_void,
len,
- 0)
+ MSG_NOSIGNAL)
})?;
Ok(ret as usize)
}
}
-#[cfg(test)]
+#[cfg(all(test, not(target_os = "emscripten")))]
mod tests {
use sys_common::remutex::{ReentrantMutex, ReentrantMutexGuard};
use cell::RefCell;
/// Copied from String::push
/// This does **not** include the WTF-8 concatenation check.
fn push_code_point_unchecked(&mut self, code_point: CodePoint) {
- let bytes = unsafe {
- char::from_u32_unchecked(code_point.value).encode_utf8()
+ let c = unsafe {
+ char::from_u32_unchecked(code_point.value)
};
- self.bytes.extend_from_slice(bytes.as_slice());
+ let mut bytes = [0; 4];
+ let bytes = c.encode_utf8(&mut bytes).as_bytes();
+ self.bytes.extend_from_slice(bytes)
}
#[inline]
return Some(tmp);
}
+ let mut buf = [0; 2];
self.code_points.next().map(|code_point| {
- let n = unsafe {
- char::from_u32_unchecked(code_point.value).encode_utf16()
+ let c = unsafe {
+ char::from_u32_unchecked(code_point.value)
};
- let n = n.as_slice();
- if n.len() == 2 {
- self.extra = n[1];
+ let n = c.encode_utf16(&mut buf).len();
+ if n == 2 {
+ self.extra = buf[1];
}
- n[0]
+ buf[0]
})
}
--- /dev/null
+// Copyright 2012-2015 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+//! Global initialization and retreival of command line arguments.
+//!
+//! On some platforms these are stored during runtime startup,
+//! and on some they are retrieved from the system on demand.
+
+#![allow(dead_code)] // runtime init functions not used during testing
+
+use ffi::OsString;
+use marker::PhantomData;
+use vec;
+
+/// One-time global initialization.
+pub unsafe fn init(argc: isize, argv: *const *const u8) { imp::init(argc, argv) }
+
+/// One-time global cleanup.
+pub unsafe fn cleanup() { imp::cleanup() }
+
+/// Returns the command line arguments
+pub fn args() -> Args {
+ imp::args()
+}
+
+pub struct Args {
+ iter: vec::IntoIter<OsString>,
+ _dont_send_or_sync_me: PhantomData<*mut ()>,
+}
+
+impl Iterator for Args {
+ type Item = OsString;
+ fn next(&mut self) -> Option<OsString> { self.iter.next() }
+ fn size_hint(&self) -> (usize, Option<usize>) { self.iter.size_hint() }
+}
+
+impl ExactSizeIterator for Args {
+ fn len(&self) -> usize { self.iter.len() }
+}
+
+impl DoubleEndedIterator for Args {
+ fn next_back(&mut self) -> Option<OsString> { self.iter.next_back() }
+}
+
+#[cfg(any(target_os = "linux",
+ target_os = "android",
+ target_os = "freebsd",
+ target_os = "dragonfly",
+ target_os = "bitrig",
+ target_os = "netbsd",
+ target_os = "openbsd",
+ target_os = "solaris",
+ target_os = "emscripten",
+ target_os = "haiku"))]
+mod imp {
+ use os::unix::prelude::*;
+ use mem;
+ use ffi::{CStr, OsString};
+ use marker::PhantomData;
+ use libc;
+ use super::Args;
+
+ use sys_common::mutex::Mutex;
+
+ static mut GLOBAL_ARGS_PTR: usize = 0;
+ static LOCK: Mutex = Mutex::new();
+
+ pub unsafe fn init(argc: isize, argv: *const *const u8) {
+ let args = (0..argc).map(|i| {
+ CStr::from_ptr(*argv.offset(i) as *const libc::c_char).to_bytes().to_vec()
+ }).collect();
+
+ LOCK.lock();
+ let ptr = get_global_ptr();
+ assert!((*ptr).is_none());
+ (*ptr) = Some(box args);
+ LOCK.unlock();
+ }
+
+ pub unsafe fn cleanup() {
+ LOCK.lock();
+ *get_global_ptr() = None;
+ LOCK.unlock();
+ }
+
+ pub fn args() -> Args {
+ let bytes = clone().unwrap_or(Vec::new());
+ let v: Vec<OsString> = bytes.into_iter().map(|v| {
+ OsStringExt::from_vec(v)
+ }).collect();
+ Args { iter: v.into_iter(), _dont_send_or_sync_me: PhantomData }
+ }
+
+ fn clone() -> Option<Vec<Vec<u8>>> {
+ unsafe {
+ LOCK.lock();
+ let ptr = get_global_ptr();
+ let ret = (*ptr).as_ref().map(|s| (**s).clone());
+ LOCK.unlock();
+ return ret
+ }
+ }
+
+ fn get_global_ptr() -> *mut Option<Box<Vec<Vec<u8>>>> {
+ unsafe { mem::transmute(&GLOBAL_ARGS_PTR) }
+ }
+
+}
+
+#[cfg(any(target_os = "macos",
+ target_os = "ios"))]
+mod imp {
+ use ffi::CStr;
+ use marker::PhantomData;
+ use libc;
+ use super::Args;
+
+ pub unsafe fn init(_argc: isize, _argv: *const *const u8) {
+ }
+
+ pub fn cleanup() {
+ }
+
+ #[cfg(target_os = "macos")]
+ pub fn args() -> Args {
+ use os::unix::prelude::*;
+ extern {
+ // These functions are in crt_externs.h.
+ fn _NSGetArgc() -> *mut libc::c_int;
+ fn _NSGetArgv() -> *mut *mut *mut libc::c_char;
+ }
+
+ let vec = unsafe {
+ let (argc, argv) = (*_NSGetArgc() as isize,
+ *_NSGetArgv() as *const *const libc::c_char);
+ (0.. argc as isize).map(|i| {
+ let bytes = CStr::from_ptr(*argv.offset(i)).to_bytes().to_vec();
+ OsStringExt::from_vec(bytes)
+ }).collect::<Vec<_>>()
+ };
+ Args {
+ iter: vec.into_iter(),
+ _dont_send_or_sync_me: PhantomData,
+ }
+ }
+
+ // As _NSGetArgc and _NSGetArgv aren't mentioned in iOS docs
+ // and use underscores in their names - they're most probably
+ // are considered private and therefore should be avoided
+ // Here is another way to get arguments using Objective C
+ // runtime
+ //
+ // In general it looks like:
+ // res = Vec::new()
+ // let args = [[NSProcessInfo processInfo] arguments]
+ // for i in (0..[args count])
+ // res.push([args objectAtIndex:i])
+ // res
+ #[cfg(target_os = "ios")]
+ pub fn args() -> Args {
+ use ffi::OsString;
+ use mem;
+ use str;
+
+ extern {
+ fn sel_registerName(name: *const libc::c_uchar) -> Sel;
+ fn objc_msgSend(obj: NsId, sel: Sel, ...) -> NsId;
+ fn objc_getClass(class_name: *const libc::c_uchar) -> NsId;
+ }
+
+ #[link(name = "Foundation", kind = "framework")]
+ #[link(name = "objc")]
+ #[cfg(not(cargobuild))]
+ extern {}
+
+ type Sel = *const libc::c_void;
+ type NsId = *const libc::c_void;
+
+ let mut res = Vec::new();
+
+ unsafe {
+ let process_info_sel = sel_registerName("processInfo\0".as_ptr());
+ let arguments_sel = sel_registerName("arguments\0".as_ptr());
+ let utf8_sel = sel_registerName("UTF8String\0".as_ptr());
+ let count_sel = sel_registerName("count\0".as_ptr());
+ let object_at_sel = sel_registerName("objectAtIndex:\0".as_ptr());
+
+ let klass = objc_getClass("NSProcessInfo\0".as_ptr());
+ let info = objc_msgSend(klass, process_info_sel);
+ let args = objc_msgSend(info, arguments_sel);
+
+ let cnt: usize = mem::transmute(objc_msgSend(args, count_sel));
+ for i in 0..cnt {
+ let tmp = objc_msgSend(args, object_at_sel, i);
+ let utf_c_str: *const libc::c_char =
+ mem::transmute(objc_msgSend(tmp, utf8_sel));
+ let bytes = CStr::from_ptr(utf_c_str).to_bytes();
+ res.push(OsString::from(str::from_utf8(bytes).unwrap()))
+ }
+ }
+
+ Args { iter: res.into_iter(), _dont_send_or_sync_me: PhantomData }
+ }
+}
--- /dev/null
+// Copyright 2012-2015 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+#[cfg(target_os = "linux")]
+pub mod os {
+ pub const FAMILY: &'static str = "unix";
+ pub const OS: &'static str = "linux";
+ pub const DLL_PREFIX: &'static str = "lib";
+ pub const DLL_SUFFIX: &'static str = ".so";
+ pub const DLL_EXTENSION: &'static str = "so";
+ pub const EXE_SUFFIX: &'static str = "";
+ pub const EXE_EXTENSION: &'static str = "";
+}
+
+#[cfg(target_os = "macos")]
+pub mod os {
+ pub const FAMILY: &'static str = "unix";
+ pub const OS: &'static str = "macos";
+ pub const DLL_PREFIX: &'static str = "lib";
+ pub const DLL_SUFFIX: &'static str = ".dylib";
+ pub const DLL_EXTENSION: &'static str = "dylib";
+ pub const EXE_SUFFIX: &'static str = "";
+ pub const EXE_EXTENSION: &'static str = "";
+}
+
+#[cfg(target_os = "ios")]
+pub mod os {
+ pub const FAMILY: &'static str = "unix";
+ pub const OS: &'static str = "ios";
+ pub const DLL_PREFIX: &'static str = "lib";
+ pub const DLL_SUFFIX: &'static str = ".dylib";
+ pub const DLL_EXTENSION: &'static str = "dylib";
+ pub const EXE_SUFFIX: &'static str = "";
+ pub const EXE_EXTENSION: &'static str = "";
+}
+
+#[cfg(target_os = "freebsd")]
+pub mod os {
+ pub const FAMILY: &'static str = "unix";
+ pub const OS: &'static str = "freebsd";
+ pub const DLL_PREFIX: &'static str = "lib";
+ pub const DLL_SUFFIX: &'static str = ".so";
+ pub const DLL_EXTENSION: &'static str = "so";
+ pub const EXE_SUFFIX: &'static str = "";
+ pub const EXE_EXTENSION: &'static str = "";
+}
+
+#[cfg(target_os = "dragonfly")]
+pub mod os {
+ pub const FAMILY: &'static str = "unix";
+ pub const OS: &'static str = "dragonfly";
+ pub const DLL_PREFIX: &'static str = "lib";
+ pub const DLL_SUFFIX: &'static str = ".so";
+ pub const DLL_EXTENSION: &'static str = "so";
+ pub const EXE_SUFFIX: &'static str = "";
+ pub const EXE_EXTENSION: &'static str = "";
+}
+
+#[cfg(target_os = "bitrig")]
+pub mod os {
+ pub const FAMILY: &'static str = "unix";
+ pub const OS: &'static str = "bitrig";
+ pub const DLL_PREFIX: &'static str = "lib";
+ pub const DLL_SUFFIX: &'static str = ".so";
+ pub const DLL_EXTENSION: &'static str = "so";
+ pub const EXE_SUFFIX: &'static str = "";
+ pub const EXE_EXTENSION: &'static str = "";
+}
+
+#[cfg(target_os = "netbsd")]
+pub mod os {
+ pub const FAMILY: &'static str = "unix";
+ pub const OS: &'static str = "netbsd";
+ pub const DLL_PREFIX: &'static str = "lib";
+ pub const DLL_SUFFIX: &'static str = ".so";
+ pub const DLL_EXTENSION: &'static str = "so";
+ pub const EXE_SUFFIX: &'static str = "";
+ pub const EXE_EXTENSION: &'static str = "";
+}
+
+#[cfg(target_os = "openbsd")]
+pub mod os {
+ pub const FAMILY: &'static str = "unix";
+ pub const OS: &'static str = "openbsd";
+ pub const DLL_PREFIX: &'static str = "lib";
+ pub const DLL_SUFFIX: &'static str = ".so";
+ pub const DLL_EXTENSION: &'static str = "so";
+ pub const EXE_SUFFIX: &'static str = "";
+ pub const EXE_EXTENSION: &'static str = "";
+}
+
+#[cfg(target_os = "android")]
+pub mod os {
+ pub const FAMILY: &'static str = "unix";
+ pub const OS: &'static str = "android";
+ pub const DLL_PREFIX: &'static str = "lib";
+ pub const DLL_SUFFIX: &'static str = ".so";
+ pub const DLL_EXTENSION: &'static str = "so";
+ pub const EXE_SUFFIX: &'static str = "";
+ pub const EXE_EXTENSION: &'static str = "";
+}
+
+#[cfg(target_os = "solaris")]
+pub mod os {
+ pub const FAMILY: &'static str = "unix";
+ pub const OS: &'static str = "solaris";
+ pub const DLL_PREFIX: &'static str = "lib";
+ pub const DLL_SUFFIX: &'static str = ".so";
+ pub const DLL_EXTENSION: &'static str = "so";
+ pub const EXE_SUFFIX: &'static str = "";
+ pub const EXE_EXTENSION: &'static str = "";
+}
+
+#[cfg(all(target_os = "nacl", not(target_arch = "le32")))]
+pub mod os {
+ pub const FAMILY: &'static str = "unix";
+ pub const OS: &'static str = "nacl";
+ pub const DLL_PREFIX: &'static str = "lib";
+ pub const DLL_SUFFIX: &'static str = ".so";
+ pub const DLL_EXTENSION: &'static str = "so";
+ pub const EXE_SUFFIX: &'static str = ".nexe";
+ pub const EXE_EXTENSION: &'static str = "nexe";
+}
+#[cfg(all(target_os = "nacl", target_arch = "le32"))]
+pub mod os {
+ pub const FAMILY: &'static str = "unix";
+ pub const OS: &'static str = "pnacl";
+ pub const DLL_PREFIX: &'static str = "lib";
+ pub const DLL_SUFFIX: &'static str = ".pso";
+ pub const DLL_EXTENSION: &'static str = "pso";
+ pub const EXE_SUFFIX: &'static str = ".pexe";
+ pub const EXE_EXTENSION: &'static str = "pexe";
+}
+
+#[cfg(target_os = "haiku")]
+mod os {
+ pub const FAMILY: &'static str = "unix";
+ pub const OS: &'static str = "haiku";
+ pub const DLL_PREFIX: &'static str = "lib";
+ pub const DLL_SUFFIX: &'static str = ".so";
+ pub const DLL_EXTENSION: &'static str = "so";
+ pub const EXE_SUFFIX: &'static str = "";
+ pub const EXE_EXTENSION: &'static str = "";
+}
+
+#[cfg(all(target_os = "emscripten", target_arch = "asmjs"))]
+mod os {
+ pub const FAMILY: &'static str = "unix";
+ pub const OS: &'static str = "emscripten";
+ pub const DLL_PREFIX: &'static str = "lib";
+ pub const DLL_SUFFIX: &'static str = ".so";
+ pub const DLL_EXTENSION: &'static str = "so";
+ pub const EXE_SUFFIX: &'static str = ".js";
+ pub const EXE_EXTENSION: &'static str = "js";
+}
+
+#[cfg(all(target_os = "emscripten", target_arch = "wasm32"))]
+mod os {
+ pub const FAMILY: &'static str = "unix";
+ pub const OS: &'static str = "emscripten";
+ pub const DLL_PREFIX: &'static str = "lib";
+ pub const DLL_SUFFIX: &'static str = ".so";
+ pub const DLL_EXTENSION: &'static str = "so";
+ pub const EXE_SUFFIX: &'static str = ".js";
+ pub const EXE_EXTENSION: &'static str = "js";
+}
use sys::net::Socket;
use sys_common::{AsInner, FromInner, IntoInner};
+#[cfg(target_os = "linux")]
+use libc::MSG_NOSIGNAL;
+#[cfg(not(target_os = "linux"))]
+const MSG_NOSIGNAL: libc::c_int = 0x0; // unused dummy value
+
fn sun_path_offset() -> usize {
unsafe {
// Work with an actual instance of the type since using a null pointer is UB
let count = cvt(libc::sendto(*d.0.as_inner(),
buf.as_ptr() as *const _,
buf.len(),
- 0,
+ MSG_NOSIGNAL,
&addr as *const _ as *const _,
len))?;
Ok(count as usize)
}
}
-#[cfg(test)]
+#[cfg(all(test, not(target_os = "emscripten")))]
mod test {
use thread;
use io;
Ok(ret as usize)
}
- #[cfg(not(any(target_env = "newlib", target_os = "solaris", target_os = "emscripten")))]
+ #[cfg(not(any(target_env = "newlib",
+ target_os = "solaris",
+ target_os = "emscripten",
+ target_os = "haiku")))]
pub fn set_cloexec(&self) -> io::Result<()> {
unsafe {
cvt(libc::ioctl(self.fd, libc::FIOCLEX))?;
Ok(())
}
}
- #[cfg(any(target_env = "newlib", target_os = "solaris", target_os = "emscripten"))]
+ #[cfg(any(target_env = "newlib",
+ target_os = "solaris",
+ target_os = "emscripten",
+ target_os = "haiku"))]
pub fn set_cloexec(&self) -> io::Result<()> {
unsafe {
let previous = cvt(libc::fcntl(self.fd, libc::F_GETFD))?;
// resolve so we at least compile this.
//
// [1]: http://comments.gmane.org/gmane.linux.lib.musl.general/2963
- #[cfg(target_os = "android")]
+ #[cfg(any(target_os = "android", target_os = "haiku"))]
use libc::F_DUPFD as F_DUPFD_CLOEXEC;
- #[cfg(not(target_os = "android"))]
+ #[cfg(not(any(target_os = "android", target_os="haiku")))]
use libc::F_DUPFD_CLOEXEC;
let make_filedesc = |fd| {
stat(&self.path()).map(|m| m.file_type())
}
- #[cfg(not(target_os = "solaris"))]
+ #[cfg(target_os = "haiku")]
+ pub fn file_type(&self) -> io::Result<FileType> {
+ lstat(&self.path()).map(|m| m.file_type())
+ }
+
+ #[cfg(not(any(target_os = "solaris", target_os = "haiku")))]
pub fn file_type(&self) -> io::Result<FileType> {
match self.entry.d_type {
libc::DT_CHR => Ok(FileType { mode: libc::S_IFCHR }),
target_os = "linux",
target_os = "emscripten",
target_os = "android",
- target_os = "solaris"))]
+ target_os = "solaris",
+ target_os = "haiku"))]
pub fn ino(&self) -> u64 {
self.entry.d_ino as u64
}
}
#[cfg(any(target_os = "android",
target_os = "linux",
- target_os = "emscripten"))]
+ target_os = "emscripten",
+ target_os = "haiku"))]
fn name_bytes(&self) -> &[u8] {
unsafe {
CStr::from_ptr(self.entry.d_name.as_ptr()).to_bytes()
--- /dev/null
+// Copyright 2015 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+//
+// Original implementation taken from rust-memchr
+// Copyright 2015 Andrew Gallant, bluss and Nicolas Koch
+
+pub fn memchr(needle: u8, haystack: &[u8]) -> Option<usize> {
+ use libc;
+
+ let p = unsafe {
+ libc::memchr(
+ haystack.as_ptr() as *const libc::c_void,
+ needle as libc::c_int,
+ haystack.len() as libc::size_t)
+ };
+ if p.is_null() {
+ None
+ } else {
+ Some(p as usize - (haystack.as_ptr() as usize))
+ }
+}
+
+pub fn memrchr(needle: u8, haystack: &[u8]) -> Option<usize> {
+
+ #[cfg(target_os = "linux")]
+ fn memrchr_specific(needle: u8, haystack: &[u8]) -> Option<usize> {
+ use libc;
+
+ // GNU's memrchr() will - unlike memchr() - error if haystack is empty.
+ if haystack.is_empty() {return None}
+ let p = unsafe {
+ libc::memrchr(
+ haystack.as_ptr() as *const libc::c_void,
+ needle as libc::c_int,
+ haystack.len() as libc::size_t)
+ };
+ if p.is_null() {
+ None
+ } else {
+ Some(p as usize - (haystack.as_ptr() as usize))
+ }
+ }
+
+ #[cfg(not(target_os = "linux"))]
+ fn memrchr_specific(needle: u8, haystack: &[u8]) -> Option<usize> {
+ ::sys_common::memchr::fallback::memrchr(needle, haystack)
+ }
+
+ memrchr_specific(needle, haystack)
+}
#[cfg(target_os = "bitrig")] pub use os::bitrig as platform;
#[cfg(target_os = "dragonfly")] pub use os::dragonfly as platform;
#[cfg(target_os = "freebsd")] pub use os::freebsd as platform;
+#[cfg(target_os = "haiku")] pub use os::haiku as platform;
#[cfg(target_os = "ios")] pub use os::ios as platform;
#[cfg(target_os = "linux")] pub use os::linux as platform;
#[cfg(target_os = "macos")] pub use os::macos as platform;
#[macro_use]
pub mod weak;
+pub mod args;
pub mod android;
#[cfg(any(not(cargobuild), feature = "backtrace"))]
pub mod backtrace;
pub mod condvar;
+pub mod env;
pub mod ext;
pub mod fd;
pub mod fs;
+pub mod memchr;
pub mod mutex;
pub mod net;
pub mod os;
pub mod os_str;
+pub mod path;
pub mod pipe;
pub mod process;
pub mod rand;
use ffi::CStr;
use io;
-use libc::{self, c_int, size_t, sockaddr, socklen_t};
+use libc::{self, c_int, size_t, sockaddr, socklen_t, EAI_SYSTEM};
use net::{SocketAddr, Shutdown};
use str;
use sys::fd::FileDesc;
#[cfg(not(target_os = "linux"))]
const SOCK_CLOEXEC: c_int = 0;
+// Another conditional contant for name resolution: Macos et iOS use
+// SO_NOSIGPIPE as a setsockopt flag to disable SIGPIPE emission on socket.
+// Other platforms do otherwise.
+#[cfg(target_vendor = "apple")]
+use libc::SO_NOSIGPIPE;
+#[cfg(not(target_vendor = "apple"))]
+const SO_NOSIGPIPE: c_int = 0;
+
pub struct Socket(FileDesc);
pub fn init() {}
pub fn cvt_gai(err: c_int) -> io::Result<()> {
- if err == 0 { return Ok(()) }
+ if err == 0 {
+ return Ok(())
+ }
+ if err == EAI_SYSTEM {
+ return Err(io::Error::last_os_error())
+ }
let detail = unsafe {
str::from_utf8(CStr::from_ptr(libc::gai_strerror(err)).to_bytes()).unwrap()
let fd = cvt(libc::socket(fam, ty, 0))?;
let fd = FileDesc::new(fd);
fd.set_cloexec()?;
- Ok(Socket(fd))
+ let socket = Socket(fd);
+ if cfg!(target_vendor = "apple") {
+ setsockopt(&socket, libc::SOL_SOCKET, SO_NOSIGPIPE, 1)?;
+ }
+ Ok(socket)
}
}
target_os = "ios",
target_os = "freebsd"),
link_name = "__error")]
+ #[cfg_attr(target_os = "haiku", link_name = "_errnop")]
fn errno_location() -> *mut c_int;
}
}
}
-pub struct Args {
- iter: vec::IntoIter<OsString>,
- _dont_send_or_sync_me: PhantomData<*mut ()>,
-}
-
-impl Iterator for Args {
- type Item = OsString;
- fn next(&mut self) -> Option<OsString> { self.iter.next() }
- fn size_hint(&self) -> (usize, Option<usize>) { self.iter.size_hint() }
-}
-
-impl ExactSizeIterator for Args {
- fn len(&self) -> usize { self.iter.len() }
-}
-
-impl DoubleEndedIterator for Args {
- fn next_back(&mut self) -> Option<OsString> { self.iter.next_back() }
-}
-
-/// Returns the command line arguments
-///
-/// Returns a list of the command line arguments.
-#[cfg(target_os = "macos")]
-pub fn args() -> Args {
- extern {
- // These functions are in crt_externs.h.
- fn _NSGetArgc() -> *mut c_int;
- fn _NSGetArgv() -> *mut *mut *mut c_char;
- }
-
- let vec = unsafe {
- let (argc, argv) = (*_NSGetArgc() as isize,
- *_NSGetArgv() as *const *const c_char);
- (0.. argc as isize).map(|i| {
- let bytes = CStr::from_ptr(*argv.offset(i)).to_bytes().to_vec();
- OsStringExt::from_vec(bytes)
- }).collect::<Vec<_>>()
- };
- Args {
- iter: vec.into_iter(),
- _dont_send_or_sync_me: PhantomData,
- }
-}
-
-// As _NSGetArgc and _NSGetArgv aren't mentioned in iOS docs
-// and use underscores in their names - they're most probably
-// are considered private and therefore should be avoided
-// Here is another way to get arguments using Objective C
-// runtime
-//
-// In general it looks like:
-// res = Vec::new()
-// let args = [[NSProcessInfo processInfo] arguments]
-// for i in (0..[args count])
-// res.push([args objectAtIndex:i])
-// res
-#[cfg(target_os = "ios")]
-pub fn args() -> Args {
- use mem;
-
- extern {
- fn sel_registerName(name: *const libc::c_uchar) -> Sel;
- fn objc_msgSend(obj: NsId, sel: Sel, ...) -> NsId;
- fn objc_getClass(class_name: *const libc::c_uchar) -> NsId;
+#[cfg(target_os = "haiku")]
+pub fn current_exe() -> io::Result<PathBuf> {
+ // Use Haiku's image info functions
+ #[repr(C)]
+ struct image_info {
+ id: i32,
+ type_: i32,
+ sequence: i32,
+ init_order: i32,
+ init_routine: *mut libc::c_void, // function pointer
+ term_routine: *mut libc::c_void, // function pointer
+ device: libc::dev_t,
+ node: libc::ino_t,
+ name: [libc::c_char; 1024], // MAXPATHLEN
+ text: *mut libc::c_void,
+ data: *mut libc::c_void,
+ text_size: i32,
+ data_size: i32,
+ api_version: i32,
+ abi: i32,
}
- #[link(name = "Foundation", kind = "framework")]
- #[link(name = "objc")]
- #[cfg(not(cargobuild))]
- extern {}
-
- type Sel = *const libc::c_void;
- type NsId = *const libc::c_void;
-
- let mut res = Vec::new();
-
unsafe {
- let process_info_sel = sel_registerName("processInfo\0".as_ptr());
- let arguments_sel = sel_registerName("arguments\0".as_ptr());
- let utf8_sel = sel_registerName("UTF8String\0".as_ptr());
- let count_sel = sel_registerName("count\0".as_ptr());
- let object_at_sel = sel_registerName("objectAtIndex:\0".as_ptr());
-
- let klass = objc_getClass("NSProcessInfo\0".as_ptr());
- let info = objc_msgSend(klass, process_info_sel);
- let args = objc_msgSend(info, arguments_sel);
-
- let cnt: usize = mem::transmute(objc_msgSend(args, count_sel));
- for i in 0..cnt {
- let tmp = objc_msgSend(args, object_at_sel, i);
- let utf_c_str: *const libc::c_char =
- mem::transmute(objc_msgSend(tmp, utf8_sel));
- let bytes = CStr::from_ptr(utf_c_str).to_bytes();
- res.push(OsString::from(str::from_utf8(bytes).unwrap()))
+ extern {
+ fn _get_next_image_info(team_id: i32, cookie: *mut i32,
+ info: *mut image_info, size: i32) -> i32;
}
- }
- Args { iter: res.into_iter(), _dont_send_or_sync_me: PhantomData }
-}
-
-#[cfg(any(target_os = "linux",
- target_os = "android",
- target_os = "freebsd",
- target_os = "dragonfly",
- target_os = "bitrig",
- target_os = "netbsd",
- target_os = "openbsd",
- target_os = "solaris",
- target_os = "nacl",
- target_os = "emscripten"))]
-pub fn args() -> Args {
- use sys_common;
- let bytes = sys_common::args::clone().unwrap_or(Vec::new());
- let v: Vec<OsString> = bytes.into_iter().map(|v| {
- OsStringExt::from_vec(v)
- }).collect();
- Args { iter: v.into_iter(), _dont_send_or_sync_me: PhantomData }
+ let mut info: image_info = mem::zeroed();
+ let mut cookie: i32 = 0;
+ // the executable can be found at team id 0
+ let result = _get_next_image_info(0, &mut cookie, &mut info,
+ mem::size_of::<image_info>() as i32);
+ if result != 0 {
+ use io::ErrorKind;
+ Err(io::Error::new(ErrorKind::Other, "Error getting executable path"))
+ } else {
+ let name = CStr::from_ptr(info.name.as_ptr()).to_bytes();
+ Ok(PathBuf::from(OsStr::from_bytes(name)))
+ }
+ }
}
pub struct Env {
--- /dev/null
+// Copyright 2015 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+use path::Prefix;
+use ffi::OsStr;
+
+#[inline]
+pub fn is_sep_byte(b: u8) -> bool {
+ b == b'/'
+}
+
+#[inline]
+pub fn is_verbatim_sep(b: u8) -> bool {
+ b == b'/'
+}
+
+pub fn parse_prefix(_: &OsStr) -> Option<Prefix> {
+ None
+}
+
+pub const MAIN_SEP_STR: &'static str = "/";
+pub const MAIN_SEP: char = '/';
}
// NaCl has no signal support.
- if cfg!(not(target_os = "nacl")) {
+ if cfg!(not(any(target_os = "nacl", target_os = "emscripten"))) {
// Reset signal handling so the child process starts in a
// standardized state. libstd ignores SIGPIPE, and signal-handling
// libraries often set a mask. Child processes inherit ignored
}
}
-#[cfg(test)]
+#[cfg(all(test, not(target_os = "emscripten")))]
mod tests {
use super::*;
}
fn flush(&mut self) -> io::Result<()> { Ok(()) }
}
+
+pub const EBADF_ERR: i32 = ::libc::EBADF as i32;
unsafe impl Send for Thread {}
unsafe impl Sync for Thread {}
+// The pthread_attr_setstacksize symbol doesn't exist in the emscripten libc,
+// so we have to not link to it to satisfy emcc's ERROR_ON_UNDEFINED_SYMBOLS.
+#[cfg(not(target_os = "emscripten"))]
+unsafe fn pthread_attr_setstacksize(attr: *mut libc::pthread_attr_t,
+ stack_size: libc::size_t) -> libc::c_int {
+ libc::pthread_attr_setstacksize(attr, stack_size)
+}
+
+#[cfg(target_os = "emscripten")]
+unsafe fn pthread_attr_setstacksize(_attr: *mut libc::pthread_attr_t,
+ _stack_size: libc::size_t) -> libc::c_int {
+ panic!()
+}
+
impl Thread {
pub unsafe fn new<'a>(stack: usize, p: Box<FnBox() + 'a>)
-> io::Result<Thread> {
assert_eq!(libc::pthread_attr_init(&mut attr), 0);
let stack_size = cmp::max(stack, min_stack_size(&attr));
- match libc::pthread_attr_setstacksize(&mut attr,
- stack_size as libc::size_t) {
+ match pthread_attr_setstacksize(&mut attr,
+ stack_size as libc::size_t) {
0 => {}
n => {
assert_eq!(n, libc::EINVAL);
name.as_ptr() as *mut libc::c_void);
}
}
- #[cfg(any(target_env = "newlib", target_os = "solaris", target_os = "emscripten"))]
+ #[cfg(any(target_env = "newlib",
+ target_os = "solaris",
+ target_os = "haiku",
+ target_os = "emscripten"))]
pub fn set_name(_name: &CStr) {
- // Newlib, Illumos and Emscripten have no way to set a thread name.
+ // Newlib, Illumos, Haiku, and Emscripten have no way to set a thread name.
}
pub fn sleep(dur: Duration) {
--- /dev/null
+// Copyright 2012-2015 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+#![allow(dead_code)] // runtime init functions not used during testing
+
+use os::windows::prelude::*;
+use sys::c;
+use slice;
+use ops::Range;
+use ffi::OsString;
+use libc::{c_int, c_void};
+
+pub unsafe fn init(_argc: isize, _argv: *const *const u8) { }
+
+pub unsafe fn cleanup() { }
+
+pub fn args() -> Args {
+ unsafe {
+ let mut nArgs: c_int = 0;
+ let lpCmdLine = c::GetCommandLineW();
+ let szArgList = c::CommandLineToArgvW(lpCmdLine, &mut nArgs);
+
+ // szArcList can be NULL if CommandLinToArgvW failed,
+ // but in that case nArgs is 0 so we won't actually
+ // try to read a null pointer
+ Args { cur: szArgList, range: 0..(nArgs as isize) }
+ }
+}
+
+pub struct Args {
+ range: Range<isize>,
+ cur: *mut *mut u16,
+}
+
+unsafe fn os_string_from_ptr(ptr: *mut u16) -> OsString {
+ let mut len = 0;
+ while *ptr.offset(len) != 0 { len += 1; }
+
+ // Push it onto the list.
+ let ptr = ptr as *const u16;
+ let buf = slice::from_raw_parts(ptr, len as usize);
+ OsStringExt::from_wide(buf)
+}
+
+impl Iterator for Args {
+ type Item = OsString;
+ fn next(&mut self) -> Option<OsString> {
+ self.range.next().map(|i| unsafe { os_string_from_ptr(*self.cur.offset(i)) } )
+ }
+ fn size_hint(&self) -> (usize, Option<usize>) { self.range.size_hint() }
+}
+
+impl DoubleEndedIterator for Args {
+ fn next_back(&mut self) -> Option<OsString> {
+ self.range.next_back().map(|i| unsafe { os_string_from_ptr(*self.cur.offset(i)) } )
+ }
+}
+
+impl ExactSizeIterator for Args {
+ fn len(&self) -> usize { self.range.len() }
+}
+
+impl Drop for Args {
+ fn drop(&mut self) {
+ // self.cur can be null if CommandLineToArgvW previously failed,
+ // but LocalFree ignores NULL pointers
+ unsafe { c::LocalFree(self.cur as *mut c_void); }
+ }
+}
--- /dev/null
+// Copyright 2012-2015 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+pub mod os {
+ pub const FAMILY: &'static str = "windows";
+ pub const OS: &'static str = "windows";
+ pub const DLL_PREFIX: &'static str = "";
+ pub const DLL_SUFFIX: &'static str = ".dll";
+ pub const DLL_EXTENSION: &'static str = "dll";
+ pub const EXE_SUFFIX: &'static str = ".exe";
+ pub const EXE_EXTENSION: &'static str = "exe";
+}
--- /dev/null
+// Copyright 2015 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+//
+// Original implementation taken from rust-memchr
+// Copyright 2015 Andrew Gallant, bluss and Nicolas Koch
+
+// Fallback memchr is fastest on windows
+pub use sys_common::memchr::fallback::{memchr, memrchr};
#[macro_use] pub mod compat;
+pub mod args;
pub mod backtrace;
pub mod c;
pub mod condvar;
pub mod dynamic_lib;
+pub mod env;
pub mod ext;
pub mod fs;
pub mod handle;
+pub mod memchr;
pub mod mutex;
pub mod net;
pub mod os;
pub mod os_str;
+pub mod path;
pub mod pipe;
pub mod process;
pub mod rand;
use ffi::{OsString, OsStr};
use fmt;
use io;
-use libc::{c_int, c_void};
-use ops::Range;
use os::windows::ffi::EncodeWide;
use path::{self, PathBuf};
use ptr;
}).map(|_| ())
}
-pub struct Args {
- range: Range<isize>,
- cur: *mut *mut u16,
-}
-
-unsafe fn os_string_from_ptr(ptr: *mut u16) -> OsString {
- let mut len = 0;
- while *ptr.offset(len) != 0 { len += 1; }
-
- // Push it onto the list.
- let ptr = ptr as *const u16;
- let buf = slice::from_raw_parts(ptr, len as usize);
- OsStringExt::from_wide(buf)
-}
-
-impl Iterator for Args {
- type Item = OsString;
- fn next(&mut self) -> Option<OsString> {
- self.range.next().map(|i| unsafe { os_string_from_ptr(*self.cur.offset(i)) } )
- }
- fn size_hint(&self) -> (usize, Option<usize>) { self.range.size_hint() }
-}
-
-impl DoubleEndedIterator for Args {
- fn next_back(&mut self) -> Option<OsString> {
- self.range.next_back().map(|i| unsafe { os_string_from_ptr(*self.cur.offset(i)) } )
- }
-}
-
-impl ExactSizeIterator for Args {
- fn len(&self) -> usize { self.range.len() }
-}
-
-impl Drop for Args {
- fn drop(&mut self) {
- // self.cur can be null if CommandLineToArgvW previously failed,
- // but LocalFree ignores NULL pointers
- unsafe { c::LocalFree(self.cur as *mut c_void); }
- }
-}
-
-pub fn args() -> Args {
- unsafe {
- let mut nArgs: c_int = 0;
- let lpCmdLine = c::GetCommandLineW();
- let szArgList = c::CommandLineToArgvW(lpCmdLine, &mut nArgs);
-
- // szArcList can be NULL if CommandLinToArgvW failed,
- // but in that case nArgs is 0 so we won't actually
- // try to read a null pointer
- Args { cur: szArgList, range: 0..(nArgs as isize) }
- }
-}
-
pub fn temp_dir() -> PathBuf {
super::fill_utf16_buf(|buf, sz| unsafe {
c::GetTempPathW(sz, buf)
--- /dev/null
+// Copyright 2015 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+use ascii::*;
+
+use path::Prefix;
+use ffi::OsStr;
+use mem;
+
+fn os_str_as_u8_slice(s: &OsStr) -> &[u8] {
+ unsafe { mem::transmute(s) }
+}
+unsafe fn u8_slice_as_os_str(s: &[u8]) -> &OsStr {
+ mem::transmute(s)
+}
+
+#[inline]
+pub fn is_sep_byte(b: u8) -> bool {
+ b == b'/' || b == b'\\'
+}
+
+#[inline]
+pub fn is_verbatim_sep(b: u8) -> bool {
+ b == b'\\'
+}
+
+pub fn parse_prefix<'a>(path: &'a OsStr) -> Option<Prefix> {
+ use path::Prefix::*;
+ unsafe {
+ // The unsafety here stems from converting between &OsStr and &[u8]
+ // and back. This is safe to do because (1) we only look at ASCII
+ // contents of the encoding and (2) new &OsStr values are produced
+ // only from ASCII-bounded slices of existing &OsStr values.
+ let mut path = os_str_as_u8_slice(path);
+
+ if path.starts_with(br"\\") {
+ // \\
+ path = &path[2..];
+ if path.starts_with(br"?\") {
+ // \\?\
+ path = &path[2..];
+ if path.starts_with(br"UNC\") {
+ // \\?\UNC\server\share
+ path = &path[4..];
+ let (server, share) = match parse_two_comps(path, is_verbatim_sep) {
+ Some((server, share)) =>
+ (u8_slice_as_os_str(server), u8_slice_as_os_str(share)),
+ None => (u8_slice_as_os_str(path), u8_slice_as_os_str(&[])),
+ };
+ return Some(VerbatimUNC(server, share));
+ } else {
+ // \\?\path
+ let idx = path.iter().position(|&b| b == b'\\');
+ if idx == Some(2) && path[1] == b':' {
+ let c = path[0];
+ if c.is_ascii() && (c as char).is_alphabetic() {
+ // \\?\C:\ path
+ return Some(VerbatimDisk(c.to_ascii_uppercase()));
+ }
+ }
+ let slice = &path[..idx.unwrap_or(path.len())];
+ return Some(Verbatim(u8_slice_as_os_str(slice)));
+ }
+ } else if path.starts_with(b".\\") {
+ // \\.\path
+ path = &path[2..];
+ let pos = path.iter().position(|&b| b == b'\\');
+ let slice = &path[..pos.unwrap_or(path.len())];
+ return Some(DeviceNS(u8_slice_as_os_str(slice)));
+ }
+ match parse_two_comps(path, is_sep_byte) {
+ Some((server, share)) if !server.is_empty() && !share.is_empty() => {
+ // \\server\share
+ return Some(UNC(u8_slice_as_os_str(server), u8_slice_as_os_str(share)));
+ }
+ _ => (),
+ }
+ } else if path.get(1) == Some(& b':') {
+ // C:
+ let c = path[0];
+ if c.is_ascii() && (c as char).is_alphabetic() {
+ return Some(Disk(c.to_ascii_uppercase()));
+ }
+ }
+ return None;
+ }
+
+ fn parse_two_comps(mut path: &[u8], f: fn(u8) -> bool) -> Option<(&[u8], &[u8])> {
+ let first = match path.iter().position(|x| f(*x)) {
+ None => return None,
+ Some(x) => &path[..x],
+ };
+ path = &path[(first.len() + 1)..];
+ let idx = path.iter().position(|x| f(*x));
+ let second = &path[..idx.unwrap_or(path.len())];
+ Some((first, second))
+ }
+}
+
+pub const MAIN_SEP_STR: &'static str = "\\";
+pub const MAIN_SEP: char = '\\';
fn invalid_encoding() -> io::Error {
io::Error::new(io::ErrorKind::InvalidData, "text was not valid unicode")
}
+
+pub const EBADF_ERR: i32 = ::sys::c::ERROR_INVALID_HANDLE as i32;
}
}
-#[cfg(test)]
+#[cfg(all(test, not(target_os = "emscripten")))]
mod tests {
use sync::mpsc::{channel, Sender};
use cell::{Cell, UnsafeCell};
//!
//! [`Cell`]: ../cell/struct.Cell.html
//! [`RefCell`]: ../cell/struct.RefCell.html
-//! [`thread_local!`]: ../macro.thread_local!.html
+//! [`thread_local!`]: ../macro.thread_local.html
//! [`with`]: struct.LocalKey.html#method.with
#![stable(feature = "rust1", since = "1.0.0")]
// Tests
////////////////////////////////////////////////////////////////////////////////
-#[cfg(test)]
+#[cfg(all(test, not(target_os = "emscripten")))]
mod tests {
use any::Any;
use sync::mpsc::{channel, Sender};
pub struct SystemTime(time::SystemTime);
/// An error returned from the `duration_since` method on `SystemTime`,
-/// used to learn about why how far in the opposite direction a timestamp lies.
+/// used to learn how far in the opposite direction a system time lies.
#[derive(Clone, Debug)]
#[stable(feature = "time2", since = "1.8.0")]
pub struct SystemTimeError(Duration);
Netbsd,
Openbsd,
NaCl,
+ Haiku,
Solaris,
}
Os::Netbsd => "netbsd".fmt(f),
Os::Openbsd => "openbsd".fmt(f),
Os::NaCl => "nacl".fmt(f),
+ Os::Haiku => "haiku".fmt(f),
Os::Solaris => "solaris".fmt(f),
}
}
/// A lifetime definition, e.g. `'a: 'b+'c+'d`
#[derive(Clone, PartialEq, Eq, RustcEncodable, RustcDecodable, Hash, Debug)]
pub struct LifetimeDef {
+ pub attrs: ThinVec<Attribute>,
pub lifetime: Lifetime,
pub bounds: Vec<Lifetime>
}
#[derive(Clone, PartialEq, Eq, RustcEncodable, RustcDecodable, Hash, Debug)]
pub struct TyParam {
+ pub attrs: ThinVec<Attribute>,
pub ident: Ident,
pub id: NodeId,
pub bounds: TyParamBounds,
PatKind::Box(ref s) | PatKind::Ref(ref s, _) => {
s.walk(it)
}
- PatKind::Vec(ref before, ref slice, ref after) => {
+ PatKind::Slice(ref before, ref slice, ref after) => {
before.iter().all(|p| p.walk(it)) &&
slice.iter().all(|p| p.walk(it)) &&
after.iter().all(|p| p.walk(it))
/// A range pattern, e.g. `1...2`
Range(P<Expr>, P<Expr>),
/// `[a, b, ..i, y, z]` is represented as:
- /// `PatKind::Vec(box [a, b], Some(i), box [y, z])`
-
Vec(Vec<P<Pat>>, Option<P<Pat>>, Vec<P<Pat>>),
+ /// `PatKind::Slice(box [a, b], Some(i), box [y, z])`
+
Slice(Vec<P<Pat>>, Option<P<Pat>>, Vec<P<Pat>>),
/// A macro pattern; pre-expansion
Mac(Mac),
}
/// The different kinds of types recognized by the compiler
#[derive(Clone, PartialEq, Eq, RustcEncodable, RustcDecodable, Hash, Debug)]
pub enum TyKind {
- /// A variable-length array (`[T]`)
- Vec(P<Ty>),
+ /// A variable-length slice (`[T]`)
+ Slice(P<Ty>),
/// A fixed length array (`[T; n]`)
- FixedLengthVec(P<Ty>, P<Expr>),
+ Array(P<Ty>, P<Expr>),
/// A raw pointer (`*const T` or `*mut T`)
Ptr(MutTy),
/// A reference (`&'a T` or `&'a mut T`)
// flag the offending attributes
for attr in attrs.iter() {
if !self.features.map(|features| features.stmt_expr_attributes).unwrap_or(true) {
- emit_feature_err(&self.sess.span_diagnostic,
+ emit_feature_err(&self.sess,
"stmt_expr_attributes",
attr.span,
GateIssue::Language,
attr.check_name("cfg")
}
-fn is_test_or_bench(attr: &ast::Attribute) -> bool {
+pub fn is_test_or_bench(attr: &ast::Attribute) -> bool {
attr.check_name("test") || attr.check_name("bench")
}
let ty = ecx.ty(
span,
- ast::TyKind::FixedLengthVec(
+ ast::TyKind::Array(
ecx.ty(
span,
ast::TyKind::Tup(vec![ty_str.clone(), ty_str])
use ext::expand::{self, Invocation, Expansion};
use ext::hygiene::Mark;
use fold::{self, Folder};
-use parse;
-use parse::parser::{self, Parser};
+use parse::{self, parser};
use parse::token;
use parse::token::{InternedString, str_to_ident};
use ptr::P;
}
}
-pub struct TokResult<'a> {
- pub parser: Parser<'a>,
- pub span: Span,
-}
-
-impl<'a> TokResult<'a> {
- // There is quite a lot of overlap here with ParserAnyMacro in ext/tt/macro_rules.rs
- // We could probably share more code.
- // FIXME(#36641) Unify TokResult and ParserAnyMacro.
- fn ensure_complete_parse(&mut self, allow_semi: bool) {
- let macro_span = &self.span;
- self.parser.ensure_complete_parse(allow_semi, |parser| {
- let token_str = parser.this_token_to_string();
- let msg = format!("macro expansion ignores token `{}` and any following", token_str);
- let span = parser.span;
- parser.diagnostic()
- .struct_span_err(span, &msg)
- .span_note(*macro_span, "caused by the macro expansion here")
- .emit();
- });
- }
-}
-
-impl<'a> MacResult for TokResult<'a> {
- fn make_items(mut self: Box<Self>) -> Option<SmallVector<P<ast::Item>>> {
- if self.parser.sess.span_diagnostic.has_errors() {
- return Some(SmallVector::zero());
- }
-
- let mut items = SmallVector::zero();
- loop {
- match self.parser.parse_item() {
- Ok(Some(item)) => items.push(item),
- Ok(None) => {
- self.ensure_complete_parse(false);
- return Some(items);
- }
- Err(mut e) => {
- e.emit();
- return Some(SmallVector::zero());
- }
- }
- }
- }
-
- fn make_impl_items(mut self: Box<Self>) -> Option<SmallVector<ast::ImplItem>> {
- let mut items = SmallVector::zero();
- loop {
- if self.parser.token == token::Eof {
- break;
- }
- match self.parser.parse_impl_item() {
- Ok(item) => items.push(item),
- Err(mut e) => {
- e.emit();
- return Some(SmallVector::zero());
- }
- }
- }
- self.ensure_complete_parse(false);
- Some(items)
- }
-
- fn make_trait_items(mut self: Box<Self>) -> Option<SmallVector<ast::TraitItem>> {
- let mut items = SmallVector::zero();
- loop {
- if self.parser.token == token::Eof {
- break;
- }
- match self.parser.parse_trait_item() {
- Ok(item) => items.push(item),
- Err(mut e) => {
- e.emit();
- return Some(SmallVector::zero());
- }
- }
- }
- self.ensure_complete_parse(false);
- Some(items)
- }
-
- fn make_expr(mut self: Box<Self>) -> Option<P<ast::Expr>> {
- match self.parser.parse_expr() {
- Ok(e) => {
- self.ensure_complete_parse(true);
- Some(e)
- }
- Err(mut e) => {
- e.emit();
- Some(DummyResult::raw_expr(self.span))
- }
- }
- }
-
- fn make_pat(mut self: Box<Self>) -> Option<P<ast::Pat>> {
- match self.parser.parse_pat() {
- Ok(e) => {
- self.ensure_complete_parse(false);
- Some(e)
- }
- Err(mut e) => {
- e.emit();
- Some(P(DummyResult::raw_pat(self.span)))
- }
- }
- }
-
- fn make_stmts(mut self: Box<Self>) -> Option<SmallVector<ast::Stmt>> {
- let mut stmts = SmallVector::zero();
- loop {
- if self.parser.token == token::Eof {
- break;
- }
- match self.parser.parse_full_stmt(false) {
- Ok(Some(stmt)) => stmts.push(stmt),
- Ok(None) => { /* continue */ }
- Err(mut e) => {
- e.emit();
- return Some(SmallVector::zero());
- }
- }
- }
- self.ensure_complete_parse(false);
- Some(stmts)
- }
-
- fn make_ty(mut self: Box<Self>) -> Option<P<ast::Ty>> {
- match self.parser.parse_ty() {
- Ok(e) => {
- self.ensure_complete_parse(false);
- Some(e)
- }
- Err(mut e) => {
- e.emit();
- Some(DummyResult::raw_ty(self.span))
- }
- }
- }
-}
-
/// Represents a thing that maps token trees to Macro Results
pub trait TTMacroExpander {
fn expand<'cx>(&self,
pub trait Resolver {
fn next_node_id(&mut self) -> ast::NodeId;
+ fn get_module_scope(&mut self, id: ast::NodeId) -> Mark;
fn visit_expansion(&mut self, mark: Mark, expansion: &Expansion);
fn add_macro(&mut self, scope: Mark, def: ast::MacroDef);
- fn add_ext(&mut self, scope: Mark, ident: ast::Ident, ext: Rc<SyntaxExtension>);
+ fn add_ext(&mut self, ident: ast::Ident, ext: Rc<SyntaxExtension>);
fn add_expansions_at_stmt(&mut self, id: ast::NodeId, macros: Vec<Mark>);
fn find_attr_invoc(&mut self, attrs: &mut Vec<Attribute>) -> Option<Attribute>;
impl Resolver for DummyResolver {
fn next_node_id(&mut self) -> ast::NodeId { ast::DUMMY_NODE_ID }
+ fn get_module_scope(&mut self, _id: ast::NodeId) -> Mark { Mark::root() }
fn visit_expansion(&mut self, _invoc: Mark, _expansion: &Expansion) {}
fn add_macro(&mut self, _scope: Mark, _def: ast::MacroDef) {}
- fn add_ext(&mut self, _scope: Mark, _ident: ast::Ident, _ext: Rc<SyntaxExtension>) {}
+ fn add_ext(&mut self, _ident: ast::Ident, _ext: Rc<SyntaxExtension>) {}
fn add_expansions_at_stmt(&mut self, _id: ast::NodeId, _macros: Vec<Mark>) {}
fn find_attr_invoc(&mut self, _attrs: &mut Vec<Attribute>) -> Option<Attribute> { None }
pub depth: usize,
pub backtrace: ExpnId,
pub module: Rc<ModuleData>,
- pub in_block: bool,
+
+ // True if non-inline modules without a `#[path]` are forbidden at the root of this expansion.
+ pub no_noninline_mod: bool,
}
/// One of these is made during expansion and incrementally updated as we go;
pub ecfg: expand::ExpansionConfig<'a>,
pub crate_root: Option<&'static str>,
pub resolver: &'a mut Resolver,
+ pub resolve_err_count: usize,
pub current_expansion: ExpansionData,
}
ecfg: ecfg,
crate_root: None,
resolver: resolver,
+ resolve_err_count: 0,
current_expansion: ExpansionData {
mark: Mark::root(),
depth: 0,
backtrace: NO_EXPANSION,
module: Rc::new(ModuleData { mod_path: Vec::new(), directory: PathBuf::new() }),
- in_block: false,
+ no_noninline_mod: false,
},
}
}
for (name, extension) in user_exts {
let ident = ast::Ident::with_empty_ctxt(name);
- self.resolver.add_ext(Mark::root(), ident, Rc::new(extension));
+ self.resolver.add_ext(ident, Rc::new(extension));
}
let mut module = ModuleData {
fn typaram(&self,
span: Span,
id: ast::Ident,
+ attrs: Vec<ast::Attribute>,
bounds: ast::TyParamBounds,
default: Option<P<ast::Ty>>) -> ast::TyParam;
fn lifetime_def(&self,
span: Span,
name: ast::Name,
+ attrs: Vec<ast::Attribute>,
bounds: Vec<ast::Lifetime>)
-> ast::LifetimeDef;
ident: ast::Ident,
typ: P<ast::Ty>,
ex: P<ast::Expr>)
- -> P<ast::Stmt>;
+ -> ast::Stmt;
fn stmt_let_type_only(&self, span: Span, ty: P<ast::Ty>) -> ast::Stmt;
fn stmt_item(&self, sp: Span, item: P<ast::Item>) -> ast::Stmt;
fn typaram(&self,
span: Span,
id: ast::Ident,
+ attrs: Vec<ast::Attribute>,
bounds: ast::TyParamBounds,
default: Option<P<ast::Ty>>) -> ast::TyParam {
ast::TyParam {
ident: id,
id: ast::DUMMY_NODE_ID,
+ attrs: attrs.into(),
bounds: bounds,
default: default,
span: span
fn lifetime_def(&self,
span: Span,
name: ast::Name,
+ attrs: Vec<ast::Attribute>,
bounds: Vec<ast::Lifetime>)
-> ast::LifetimeDef {
ast::LifetimeDef {
+ attrs: attrs.into(),
lifetime: self.lifetime(span, name),
bounds: bounds
}
ident: ast::Ident,
typ: P<ast::Ty>,
ex: P<ast::Expr>)
- -> P<ast::Stmt> {
+ -> ast::Stmt {
let pat = if mutbl {
let binding_mode = ast::BindingMode::ByValue(ast::Mutability::Mutable);
self.pat_ident_binding_mode(sp, ident, binding_mode)
span: sp,
attrs: ast::ThinVec::new(),
});
- P(ast::Stmt {
+ ast::Stmt {
id: ast::DUMMY_NODE_ID,
node: ast::StmtKind::Local(local),
span: sp,
- })
+ }
}
// Generate `let _: Type;`, usually used for type assertions.
// except according to those terms.
use ast::{Block, Crate, Ident, Mac_, PatKind};
-use ast::{MacStmtStyle, StmtKind, ItemKind};
+use ast::{Name, MacStmtStyle, StmtKind, ItemKind};
use ast;
use ext::hygiene::Mark;
use ext::placeholders::{placeholder, PlaceholderExpander};
use attr::{self, HasAttrs};
use codemap::{ExpnInfo, NameAndSpan, MacroBang, MacroAttribute};
use syntax_pos::{self, Span, ExpnId};
-use config::StripUnconfigured;
+use config::{is_test_or_bench, StripUnconfigured};
use ext::base::*;
use feature_gate::{self, Features};
use fold;
use fold::*;
-use parse::{ParseSess, lexer};
+use parse::{ParseSess, PResult, lexer};
use parse::parser::Parser;
-use parse::token::{intern, keywords};
+use parse::token::{self, intern, keywords};
use print::pprust;
use ptr::P;
use tokenstream::{TokenTree, TokenStream};
($($kind:ident: $ty:ty [$($vec:ident, $ty_elt:ty)*], $kind_name:expr, .$make:ident,
$(.$fold:ident)* $(lift .$fold_elt:ident)*,
$(.$visit:ident)* $(lift .$visit_elt:ident)*;)*) => {
- #[derive(Copy, Clone)]
+ #[derive(Copy, Clone, PartialEq, Eq)]
pub enum ExpansionKind { OptExpr, $( $kind, )* }
pub enum Expansion { OptExpr(Option<P<ast::Expr>>), $( $kind($ty), )* }
impl ExpansionKind {
- fn name(self) -> &'static str {
+ pub fn name(self) -> &'static str {
match self {
ExpansionKind::OptExpr => "expression",
$( ExpansionKind::$kind => $kind_name, )*
self.expand(Expansion::$kind(SmallVector::one(node))).$make()
})*)*
}
+
+ impl<'a> MacResult for ::ext::tt::macro_rules::ParserAnyMacro<'a> {
+ $(fn $make(self: Box<::ext::tt::macro_rules::ParserAnyMacro<'a>>) -> Option<$ty> {
+ Some(self.make(ExpansionKind::$kind).$make())
+ })*
+ }
}
}
_ => unreachable!(),
};
- if self.cx.parse_sess.span_diagnostic.err_count() > err_count {
+ if self.cx.parse_sess.span_diagnostic.err_count() - self.cx.resolve_err_count > err_count {
self.cx.parse_sess.span_diagnostic.abort_if_errors();
}
self.cx.cfg = crate_config;
if self.monotonic {
+ let err_count = self.cx.parse_sess.span_diagnostic.err_count();
let mark = self.cx.current_expansion.mark;
self.cx.resolver.visit_expansion(mark, &result.0);
+ self.cx.resolve_err_count += self.cx.parse_sess.span_diagnostic.err_count() - err_count;
}
result
};
attr::mark_used(&attr);
+ let name = intern(&attr.name());
self.cx.bt_push(ExpnInfo {
call_site: attr.span,
callee: NameAndSpan {
- format: MacroAttribute(intern(&attr.name())),
+ format: MacroAttribute(name),
span: Some(attr.span),
allow_internal_unstable: false,
}
let item_toks = TokenStream::from_tts(tts_for_item(&item, &self.cx.parse_sess));
let tok_result = mac.expand(self.cx, attr.span, attr_toks, item_toks);
- let parser = self.cx.new_parser_from_tts(&tok_result.to_tts());
- let result = Box::new(TokResult { parser: parser, span: attr.span });
-
- kind.make_from(result).unwrap_or_else(|| {
- let msg = format!("macro could not be expanded into {} position", kind.name());
- self.cx.span_err(attr.span, &msg);
- kind.dummy(attr.span)
- })
+ self.parse_expansion(tok_result, kind, name, attr.span)
}
_ => unreachable!(),
}
// Detect use of feature-gated or invalid attributes on macro invoations
// since they will not be detected after macro expansion.
for attr in attrs.iter() {
- feature_gate::check_attribute(&attr, &self.cx.parse_sess.span_diagnostic,
+ feature_gate::check_attribute(&attr, &self.cx.parse_sess,
&self.cx.parse_sess.codemap(),
&self.cx.ecfg.features.unwrap());
}
},
});
-
- let tok_result = expandfun.expand(self.cx,
- span,
- TokenStream::from_tts(marked_tts));
- let parser = self.cx.new_parser_from_tts(&tok_result.to_tts());
- let result = Box::new(TokResult { parser: parser, span: span });
- // FIXME better span info.
- kind.make_from(result).map(|i| i.fold_with(&mut ChangeSpan { span: span }))
+ let toks = TokenStream::from_tts(marked_tts);
+ let tok_result = expandfun.expand(self.cx, span, toks);
+ Some(self.parse_expansion(tok_result, kind, extname, span))
}
};
expn_id: Some(self.cx.backtrace()),
})
}
+
+ fn parse_expansion(&mut self, toks: TokenStream, kind: ExpansionKind, name: Name, span: Span)
+ -> Expansion {
+ let mut parser = self.cx.new_parser_from_tts(&toks.to_tts());
+ let expansion = match parser.parse_expansion(kind, false) {
+ Ok(expansion) => expansion,
+ Err(mut err) => {
+ err.emit();
+ return kind.dummy(span);
+ }
+ };
+ parser.ensure_complete_parse(name, kind.name(), span);
+ // FIXME better span info
+ expansion.fold_with(&mut ChangeSpan { span: span })
+ }
+}
+
+impl<'a> Parser<'a> {
+ pub fn parse_expansion(&mut self, kind: ExpansionKind, macro_legacy_warnings: bool)
+ -> PResult<'a, Expansion> {
+ Ok(match kind {
+ ExpansionKind::Items => {
+ let mut items = SmallVector::zero();
+ while let Some(item) = self.parse_item()? {
+ items.push(item);
+ }
+ Expansion::Items(items)
+ }
+ ExpansionKind::TraitItems => {
+ let mut items = SmallVector::zero();
+ while self.token != token::Eof {
+ items.push(self.parse_trait_item()?);
+ }
+ Expansion::TraitItems(items)
+ }
+ ExpansionKind::ImplItems => {
+ let mut items = SmallVector::zero();
+ while self.token != token::Eof {
+ items.push(self.parse_impl_item()?);
+ }
+ Expansion::ImplItems(items)
+ }
+ ExpansionKind::Stmts => {
+ let mut stmts = SmallVector::zero();
+ while self.token != token::Eof {
+ if let Some(stmt) = self.parse_full_stmt(macro_legacy_warnings)? {
+ stmts.push(stmt);
+ }
+ }
+ Expansion::Stmts(stmts)
+ }
+ ExpansionKind::Expr => Expansion::Expr(self.parse_expr()?),
+ ExpansionKind::OptExpr => Expansion::OptExpr(Some(self.parse_expr()?)),
+ ExpansionKind::Ty => Expansion::Ty(self.parse_ty()?),
+ ExpansionKind::Pat => Expansion::Pat(self.parse_pat()?),
+ })
+ }
+
+ pub fn ensure_complete_parse(&mut self, macro_name: ast::Name, kind_name: &str, span: Span) {
+ if self.token != token::Eof {
+ let msg = format!("macro expansion ignores token `{}` and any following",
+ self.this_token_to_string());
+ let mut err = self.diagnostic().struct_span_err(self.span, &msg);
+ let msg = format!("caused by the macro expansion here; the usage \
+ of `{}!` is likely invalid in {} context",
+ macro_name, kind_name);
+ err.span_note(span, &msg).emit();
+ }
+ }
}
struct InvocationCollector<'a, 'b: 'a> {
}
fn fold_block(&mut self, block: P<Block>) -> P<Block> {
- let orig_in_block = mem::replace(&mut self.cx.current_expansion.in_block, true);
+ let no_noninline_mod = mem::replace(&mut self.cx.current_expansion.no_noninline_mod, true);
let result = noop_fold_block(block, self);
- self.cx.current_expansion.in_block = orig_in_block;
+ self.cx.current_expansion.no_noninline_mod = no_noninline_mod;
result
}
fn fold_item(&mut self, item: P<ast::Item>) -> SmallVector<P<ast::Item>> {
let item = configure!(self, item);
- let (item, attr) = self.classify_item(item);
+ let (mut item, attr) = self.classify_item(item);
if let Some(attr) = attr {
let item = Annotatable::Item(fully_configure!(self, item, noop_fold_item));
return self.collect_attr(attr, item, ExpansionKind::Items).make_items();
return noop_fold_item(item, self);
}
+ let orig_no_noninline_mod = self.cx.current_expansion.no_noninline_mod;
let mut module = (*self.cx.current_expansion.module).clone();
module.mod_path.push(item.ident);
let inline_module = item.span.contains(inner) || inner == syntax_pos::DUMMY_SP;
if inline_module {
- module.directory.push(&*{
- ::attr::first_attr_value_str_by_name(&item.attrs, "path")
- .unwrap_or(item.ident.name.as_str())
- });
+ if let Some(path) = attr::first_attr_value_str_by_name(&item.attrs, "path") {
+ self.cx.current_expansion.no_noninline_mod = false;
+ module.directory.push(&*path);
+ } else {
+ module.directory.push(&*item.ident.name.as_str());
+ }
} else {
+ self.cx.current_expansion.no_noninline_mod = false;
module.directory =
PathBuf::from(self.cx.parse_sess.codemap().span_to_filename(inner));
module.directory.pop();
mem::replace(&mut self.cx.current_expansion.module, Rc::new(module));
let result = noop_fold_item(item, self);
self.cx.current_expansion.module = orig_module;
+ self.cx.current_expansion.no_noninline_mod = orig_no_noninline_mod;
return result;
}
+ // Ensure that test functions are accessible from the test harness.
+ ast::ItemKind::Fn(..) if self.cx.ecfg.should_test => {
+ if item.attrs.iter().any(|attr| is_test_or_bench(attr)) {
+ item = item.map(|mut item| { item.vis = ast::Visibility::Public; item });
+ }
+ noop_fold_item(item, self)
+ }
_ => noop_fold_item(item, self),
}
}
//! and definition contexts*. J. Funct. Program. 22, 2 (March 2012), 181-216.
//! DOI=10.1017/S0956796812000093 http://dx.doi.org/10.1017/S0956796812000093
+use ast::NodeId;
use std::cell::RefCell;
use std::collections::HashMap;
use std::fmt;
Mark(0)
}
+ pub fn from_placeholder_id(id: NodeId) -> Self {
+ Mark(id.as_u32())
+ }
+
pub fn as_u32(&self) -> u32 {
self.0
}
use syntax_pos::{Span, DUMMY_SP};
use ext::base::{DummyResult, ExtCtxt, MacEager, MacResult, SyntaxExtension};
use ext::base::{IdentMacroExpander, NormalTT, TTMacroExpander};
+use ext::expand::{Expansion, ExpansionKind};
use ext::placeholders;
use ext::tt::macro_parser::{Success, Error, Failure};
use ext::tt::macro_parser::{MatchedSeq, MatchedNonterminal};
use parse::token::{self, gensym_ident, NtTT, Token};
use parse::token::Token::*;
use print;
-use ptr::P;
use tokenstream::{self, TokenTree};
-use util::small_vector::SmallVector;
-
-use std::cell::RefCell;
use std::collections::{HashMap};
use std::collections::hash_map::{Entry};
use std::rc::Rc;
-struct ParserAnyMacro<'a> {
- parser: RefCell<Parser<'a>>,
+pub struct ParserAnyMacro<'a> {
+ parser: Parser<'a>,
/// Span of the expansion site of the macro this parser is for
site_span: Span,
}
impl<'a> ParserAnyMacro<'a> {
- /// Make sure we don't have any tokens left to parse, so we don't
- /// silently drop anything. `allow_semi` is so that "optional"
- /// semicolons at the end of normal expressions aren't complained
- /// about e.g. the semicolon in `macro_rules! kapow { () => {
- /// panic!(); } }` doesn't get picked up by .parse_expr(), but it's
- /// allowed to be there.
- fn ensure_complete_parse(&self, allow_semi: bool, context: &str) {
- let mut parser = self.parser.borrow_mut();
- parser.ensure_complete_parse(allow_semi, |parser| {
- let token_str = parser.this_token_to_string();
- let msg = format!("macro expansion ignores token `{}` and any \
- following",
- token_str);
- let span = parser.span;
- let mut err = parser.diagnostic().struct_span_err(span, &msg);
- let msg = format!("caused by the macro expansion here; the usage \
- of `{}!` is likely invalid in {} context",
- self.macro_ident, context);
- err.span_note(self.site_span, &msg)
- .emit();
- });
- }
-}
-
-impl<'a> MacResult for ParserAnyMacro<'a> {
- fn make_expr(self: Box<ParserAnyMacro<'a>>) -> Option<P<ast::Expr>> {
- let ret = panictry!(self.parser.borrow_mut().parse_expr());
- self.ensure_complete_parse(true, "expression");
- Some(ret)
- }
- fn make_pat(self: Box<ParserAnyMacro<'a>>) -> Option<P<ast::Pat>> {
- let ret = panictry!(self.parser.borrow_mut().parse_pat());
- self.ensure_complete_parse(false, "pattern");
- Some(ret)
- }
- fn make_items(self: Box<ParserAnyMacro<'a>>) -> Option<SmallVector<P<ast::Item>>> {
- let mut ret = SmallVector::zero();
- while let Some(item) = panictry!(self.parser.borrow_mut().parse_item()) {
- ret.push(item);
- }
- self.ensure_complete_parse(false, "item");
- Some(ret)
- }
-
- fn make_impl_items(self: Box<ParserAnyMacro<'a>>)
- -> Option<SmallVector<ast::ImplItem>> {
- let mut ret = SmallVector::zero();
- loop {
- let mut parser = self.parser.borrow_mut();
- match parser.token {
- token::Eof => break,
- _ => ret.push(panictry!(parser.parse_impl_item()))
- }
- }
- self.ensure_complete_parse(false, "item");
- Some(ret)
- }
-
- fn make_trait_items(self: Box<ParserAnyMacro<'a>>)
- -> Option<SmallVector<ast::TraitItem>> {
- let mut ret = SmallVector::zero();
- loop {
- let mut parser = self.parser.borrow_mut();
- match parser.token {
- token::Eof => break,
- _ => ret.push(panictry!(parser.parse_trait_item()))
- }
- }
- self.ensure_complete_parse(false, "item");
- Some(ret)
- }
-
-
- fn make_stmts(self: Box<ParserAnyMacro<'a>>)
- -> Option<SmallVector<ast::Stmt>> {
- let mut ret = SmallVector::zero();
- loop {
- let mut parser = self.parser.borrow_mut();
- match parser.token {
- token::Eof => break,
- _ => match parser.parse_full_stmt(true) {
- Ok(maybe_stmt) => match maybe_stmt {
- Some(stmt) => ret.push(stmt),
- None => (),
- },
- Err(mut e) => {
- e.emit();
- break;
- }
- }
- }
+ pub fn make(mut self: Box<ParserAnyMacro<'a>>, kind: ExpansionKind) -> Expansion {
+ let ParserAnyMacro { site_span, macro_ident, ref mut parser } = *self;
+ let expansion = panictry!(parser.parse_expansion(kind, true));
+
+ // We allow semicolons at the end of expressions -- e.g. the semicolon in
+ // `macro_rules! m { () => { panic!(); } }` isn't parsed by `.parse_expr()`,
+ // but `m!()` is allowed in expression positions (c.f. issue #34706).
+ if kind == ExpansionKind::Expr && parser.token == token::Semi {
+ parser.bump();
}
- self.ensure_complete_parse(false, "statement");
- Some(ret)
- }
- fn make_ty(self: Box<ParserAnyMacro<'a>>) -> Option<P<ast::Ty>> {
- let ret = panictry!(self.parser.borrow_mut().parse_ty());
- self.ensure_complete_parse(false, "type");
- Some(ret)
+ // Make sure we don't have any tokens left to parse so we don't silently drop anything.
+ parser.ensure_complete_parse(macro_ident.name, kind.name(), site_span);
+ expansion
}
}
rhs);
let mut p = Parser::new(cx.parse_sess(), cx.cfg(), Box::new(trncbr));
p.directory = cx.current_expansion.module.directory.clone();
- p.restrictions = match cx.current_expansion.in_block {
+ p.restrictions = match cx.current_expansion.no_noninline_mod {
true => Restrictions::NO_NONINLINE_MOD,
false => Restrictions::empty(),
};
// Let the context choose how to interpret the result.
// Weird, but useful for X-macros.
return Box::new(ParserAnyMacro {
- parser: RefCell::new(p),
+ parser: p,
// Pass along the original expansion site and the name of the macro
// so we can print a useful error message if the parse of the expanded
(**tt).clone()
}
_ => sess.span_diagnostic.span_bug(def.span, "wrong-structured lhs")
- }).collect()
+ }).collect::<Vec<TokenTree>>()
}
_ => sess.span_diagnostic.span_bug(def.span, "wrong-structured lhs")
};
valid &= check_rhs(sess, rhs);
}
+ // don't abort iteration early, so that errors for multiple lhses can be reported
+ for lhs in &lhses {
+ valid &= check_lhs_no_empty_seq(sess, &[lhs.clone()])
+ }
+
let exp: Box<_> = Box::new(MacroRulesMacroExpander {
name: def.ident,
imported_from: def.imported_from,
// after parsing/expansion. we can report every error in every macro this way.
}
+/// Check that the lhs contains no repetition which could match an empty token
+/// tree, because then the matcher would hang indefinitely.
+fn check_lhs_no_empty_seq(sess: &ParseSess, tts: &[TokenTree]) -> bool {
+ for tt in tts {
+ match *tt {
+ TokenTree::Token(_, _) => (),
+ TokenTree::Delimited(_, ref del) => if !check_lhs_no_empty_seq(sess, &del.tts) {
+ return false;
+ },
+ TokenTree::Sequence(span, ref seq) => {
+ if seq.separator.is_none() {
+ if seq.tts.iter().all(|seq_tt| {
+ match *seq_tt {
+ TokenTree::Sequence(_, ref sub_seq) =>
+ sub_seq.op == tokenstream::KleeneOp::ZeroOrMore,
+ _ => false,
+ }
+ }) {
+ sess.span_diagnostic.span_err(span, "repetition matches empty token tree");
+ return false;
+ }
+ }
+ if !check_lhs_no_empty_seq(sess, &seq.tts) {
+ return false;
+ }
+ }
+ }
+ }
+
+ true
+}
+
fn check_rhs(sess: &ParseSess, rhs: &TokenTree) -> bool {
match *rhs {
TokenTree::Delimited(..) => return true,
use parse::token::InternedString;
use std::ascii::AsciiExt;
+use std::env;
macro_rules! setter {
($field: ident) => {{
// Used to identify the `compiler_builtins` crate
// rustc internal
(active, compiler_builtins, "1.13.0", None),
+
+ // Allows attributes on lifetime/type formal parameters in generics (RFC 1327)
+ (active, generic_param_attrs, "1.11.0", Some(34761)),
);
declare_features! (
pub fn check_and_emit(&self, sess: &ParseSess, features: &Features) {
let (cfg, feature, has_feature) = GATED_CFGS[self.index];
if !has_feature(features) && !sess.codemap().span_allows_unstable(self.span) {
- let diagnostic = &sess.span_diagnostic;
let explain = format!("`cfg({})` is experimental and subject to change", cfg);
- emit_feature_err(diagnostic, feature, self.span, GateIssue::Language, &explain);
+ emit_feature_err(sess, feature, self.span, GateIssue::Language, &explain);
}
}
}
struct Context<'a> {
features: &'a Features,
- span_handler: &'a Handler,
+ parse_sess: &'a ParseSess,
cm: &'a CodeMap,
plugin_attributes: &'a [(String, AttributeType)],
}
let has_feature: bool = has_feature(&$cx.features);
debug!("gate_feature(feature = {:?}, span = {:?}); has? {}", name, span, has_feature);
if !has_feature && !cx.cm.span_allows_unstable(span) {
- emit_feature_err(cx.span_handler, name, span, GateIssue::Language, explain);
+ emit_feature_err(cx.parse_sess, name, span, GateIssue::Language, explain);
}
}}
}
}
}
-pub fn check_attribute(attr: &ast::Attribute, handler: &Handler,
+pub fn check_attribute(attr: &ast::Attribute, parse_sess: &ParseSess,
cm: &CodeMap, features: &Features) {
let cx = Context {
- features: features, span_handler: handler,
+ features: features, parse_sess: parse_sess,
cm: cm, plugin_attributes: &[]
};
cx.check_attribute(attr, true);
Library(Option<u32>)
}
-pub fn emit_feature_err(diag: &Handler, feature: &str, span: Span, issue: GateIssue,
+pub fn emit_feature_err(sess: &ParseSess, feature: &str, span: Span, issue: GateIssue,
explain: &str) {
+ let diag = &sess.span_diagnostic;
+
let issue = match issue {
GateIssue::Language => find_lang_feature_issue(feature),
GateIssue::Library(lib) => lib,
};
// #23973: do not suggest `#![feature(...)]` if we are in beta/stable
- if option_env!("CFG_DISABLE_UNSTABLE_FEATURES").is_some() {
- err.emit();
- return;
+ if sess.unstable_features.is_nightly_build() {
+ err.help(&format!("add #![feature({})] to the \
+ crate attributes to enable",
+ feature));
}
- err.help(&format!("add #![feature({})] to the \
- crate attributes to enable",
- feature));
+
err.emit();
}
if attr::contains_name(&i.attrs[..], "simd") {
gate_feature_post!(&self, simd, i.span,
"SIMD types are experimental and possibly buggy");
- self.context.span_handler.span_warn(i.span,
- "the `#[simd]` attribute is deprecated, \
- use `#[repr(simd)]` instead");
+ self.context.parse_sess.span_diagnostic.span_warn(i.span,
+ "the `#[simd]` attribute \
+ is deprecated, use \
+ `#[repr(simd)]` instead");
}
for attr in &i.attrs {
if attr.name() == "repr" {
fn visit_pat(&mut self, pattern: &ast::Pat) {
match pattern.node {
- PatKind::Vec(_, Some(_), ref last) if !last.is_empty() => {
+ PatKind::Slice(_, Some(_), ref last) if !last.is_empty() => {
gate_feature_post!(&self, advanced_slice_patterns,
pattern.span,
"multiple-element slice matches anywhere \
but at the end of a slice (e.g. \
`[0, ..xs, 0]`) are experimental")
}
- PatKind::Vec(..) => {
+ PatKind::Slice(..) => {
gate_feature_post!(&self, slice_patterns,
pattern.span,
"slice pattern syntax is experimental");
visit::walk_vis(self, vis)
}
+
+ fn visit_generics(&mut self, g: &ast::Generics) {
+ for t in &g.ty_params {
+ if !t.attrs.is_empty() {
+ gate_feature_post!(&self, generic_param_attrs, t.attrs[0].span,
+ "attributes on type parameter bindings are experimental");
+ }
+ }
+ visit::walk_generics(self, g)
+ }
+
+ fn visit_lifetime_def(&mut self, lifetime_def: &ast::LifetimeDef) {
+ if !lifetime_def.attrs.is_empty() {
+ gate_feature_post!(&self, generic_param_attrs, lifetime_def.attrs[0].span,
+ "attributes on lifetime bindings are experimental");
+ }
+ visit::walk_lifetime_def(self, lifetime_def)
+ }
}
pub fn get_features(span_handler: &Handler, krate_attrs: &[ast::Attribute]) -> Features {
maybe_stage_features(&sess.span_diagnostic, krate, unstable);
let ctx = Context {
features: features,
- span_handler: &sess.span_diagnostic,
+ parse_sess: sess,
cm: sess.codemap(),
plugin_attributes: plugin_attributes,
};
Cheat
}
+impl UnstableFeatures {
+ pub fn from_environment() -> UnstableFeatures {
+ // Whether this is a feature-staged build, i.e. on the beta or stable channel
+ let disable_unstable_features = option_env!("CFG_DISABLE_UNSTABLE_FEATURES").is_some();
+ // The secret key needed to get through the rustc build itself by
+ // subverting the unstable features lints
+ let bootstrap_secret_key = option_env!("CFG_BOOTSTRAP_KEY");
+ // The matching key to the above, only known by the build system
+ let bootstrap_provided_key = env::var("RUSTC_BOOTSTRAP_KEY").ok();
+ match (disable_unstable_features, bootstrap_secret_key, bootstrap_provided_key) {
+ (_, Some(ref s), Some(ref p)) if s == p => UnstableFeatures::Cheat,
+ (true, _, _) => UnstableFeatures::Disallow,
+ (false, _, _) => UnstableFeatures::Allow
+ }
+ }
+
+ pub fn is_nightly_build(&self) -> bool {
+ match *self {
+ UnstableFeatures::Allow | UnstableFeatures::Cheat => true,
+ _ => false,
+ }
+ }
+}
+
fn maybe_stage_features(span_handler: &Handler, krate: &ast::Crate,
unstable: UnstableFeatures) {
let allow_features = match unstable {
id: fld.new_id(id),
node: match node {
TyKind::Infer | TyKind::ImplicitSelf => node,
- TyKind::Vec(ty) => TyKind::Vec(fld.fold_ty(ty)),
+ TyKind::Slice(ty) => TyKind::Slice(fld.fold_ty(ty)),
TyKind::Ptr(mt) => TyKind::Ptr(fld.fold_mt(mt)),
TyKind::Rptr(region, mt) => {
TyKind::Rptr(fld.fold_opt_lifetime(region), fld.fold_mt(mt))
TyKind::ObjectSum(fld.fold_ty(ty),
fld.fold_bounds(bounds))
}
- TyKind::FixedLengthVec(ty, e) => {
- TyKind::FixedLengthVec(fld.fold_ty(ty), fld.fold_expr(e))
+ TyKind::Array(ty, e) => {
+ TyKind::Array(fld.fold_ty(ty), fld.fold_expr(e))
}
TyKind::Typeof(expr) => {
TyKind::Typeof(fld.fold_expr(expr))
}
pub fn noop_fold_ty_param<T: Folder>(tp: TyParam, fld: &mut T) -> TyParam {
- let TyParam {id, ident, bounds, default, span} = tp;
+ let TyParam {attrs, id, ident, bounds, default, span} = tp;
+ let attrs: Vec<_> = attrs.into();
TyParam {
+ attrs: attrs.into_iter()
+ .flat_map(|x| fld.fold_attribute(x).into_iter())
+ .collect::<Vec<_>>()
+ .into(),
id: fld.new_id(id),
ident: ident,
bounds: fld.fold_bounds(bounds),
pub fn noop_fold_lifetime_def<T: Folder>(l: LifetimeDef, fld: &mut T)
-> LifetimeDef {
+ let attrs: Vec<_> = l.attrs.into();
LifetimeDef {
+ attrs: attrs.into_iter()
+ .flat_map(|x| fld.fold_attribute(x).into_iter())
+ .collect::<Vec<_>>()
+ .into(),
lifetime: fld.fold_lifetime(l.lifetime),
bounds: fld.fold_lifetimes(l.bounds),
}
PatKind::Range(e1, e2) => {
PatKind::Range(folder.fold_expr(e1), folder.fold_expr(e2))
},
- PatKind::Vec(before, slice, after) => {
- PatKind::Vec(before.move_map(|x| folder.fold_pat(x)),
+ PatKind::Slice(before, slice, after) => {
+ PatKind::Slice(before.move_map(|x| folder.fold_pat(x)),
slice.map(|x| folder.fold_pat(x)),
after.move_map(|x| folder.fold_pat(x)))
}
}
impl JsonEmitter {
+ pub fn stderr(registry: Option<Registry>,
+ code_map: Rc<CodeMap>) -> JsonEmitter {
+ JsonEmitter {
+ dst: Box::new(io::stderr()),
+ registry: registry,
+ cm: code_map,
+ }
+ }
+
pub fn basic() -> JsonEmitter {
JsonEmitter::stderr(None, Rc::new(CodeMap::new()))
}
- pub fn stderr(registry: Option<Registry>,
- code_map: Rc<CodeMap>) -> JsonEmitter {
+ pub fn new(dst: Box<Write + Send>,
+ registry: Option<Registry>,
+ code_map: Rc<CodeMap>) -> JsonEmitter {
JsonEmitter {
- dst: Box::new(io::stderr()),
+ dst: dst,
registry: registry,
cm: code_map,
}
use codemap::CodeMap;
use syntax_pos::{self, Span, FileMap};
use errors::{Handler, ColorConfig, DiagnosticBuilder};
+use feature_gate::UnstableFeatures;
use parse::parser::Parser;
use parse::token::InternedString;
use ptr::P;
/// Info about a parsing session.
pub struct ParseSess {
pub span_diagnostic: Handler, // better be the same as the one in the reader!
+ pub unstable_features: UnstableFeatures,
/// Used to determine and report recursive mod inclusions
included_mod_stack: RefCell<Vec<PathBuf>>,
code_map: Rc<CodeMap>,
pub fn with_span_handler(handler: Handler, code_map: Rc<CodeMap>) -> ParseSess {
ParseSess {
span_diagnostic: handler,
+ unstable_features: UnstableFeatures::from_environment(),
included_mod_stack: RefCell::new(vec![]),
code_map: code_map
}
}
}
- fn parse_ident_into_path(&mut self) -> PResult<'a, ast::Path> {
- let ident = self.parse_ident()?;
- Ok(ast::Path::from_ident(self.last_span, ident))
- }
-
/// Check if the next token is `tok`, and return `true` if so.
///
/// This method will automatically add `tok` to `expected_tokens` if `tok` is not
let lo = self.span.lo;
let (name, node) = if self.eat_keyword(keywords::Type) {
- let TyParam {ident, bounds, default, ..} = self.parse_ty_param()?;
+ let TyParam {ident, bounds, default, ..} = self.parse_ty_param(vec![])?;
self.expect(&token::Semi)?;
(ident, TraitItemKind::Type(bounds, default))
} else if self.is_const_item() {
None
};
(ident, TraitItemKind::Const(ty, default))
- } else if !self.token.is_any_keyword()
- && self.look_ahead(1, |t| *t == token::Not)
- && (self.look_ahead(2, |t| *t == token::OpenDelim(token::Paren))
- || self.look_ahead(2, |t| *t == token::OpenDelim(token::Brace))) {
- // trait item macro.
- // code copied from parse_macro_use_or_failure... abstraction!
- let lo = self.span.lo;
- let pth = self.parse_ident_into_path()?;
- self.expect(&token::Not)?;
+ } else if self.token.is_path_start() {
+ // trait item macro.
+ // code copied from parse_macro_use_or_failure... abstraction!
+ let lo = self.span.lo;
+ let pth = self.parse_path(PathStyle::Mod)?;
+ self.expect(&token::Not)?;
- // eat a matched-delimiter token tree:
- let delim = self.expect_open_delim()?;
- let tts = self.parse_seq_to_end(&token::CloseDelim(delim),
- SeqSep::none(),
- |pp| pp.parse_token_tree())?;
- let m_ = Mac_ { path: pth, tts: tts };
- let m: ast::Mac = codemap::Spanned { node: m_,
- span: mk_sp(lo,
- self.last_span.hi) };
- if delim != token::Brace {
- self.expect(&token::Semi)?
- }
- (keywords::Invalid.ident(), ast::TraitItemKind::Macro(m))
- } else {
- let (constness, unsafety, abi) = match self.parse_fn_front_matter() {
- Ok(cua) => cua,
- Err(e) => {
- loop {
- match self.token {
- token::Eof => break,
- token::CloseDelim(token::Brace) |
- token::Semi => {
- self.bump();
- break;
- }
- token::OpenDelim(token::Brace) => {
- self.parse_token_tree()?;
- break;
- }
- _ => self.bump()
+ // eat a matched-delimiter token tree:
+ let delim = self.expect_open_delim()?;
+ let tts = self.parse_seq_to_end(&token::CloseDelim(delim),
+ SeqSep::none(),
+ |pp| pp.parse_token_tree())?;
+ if delim != token::Brace {
+ self.expect(&token::Semi)?
+ }
+
+ let mac = spanned(lo, self.last_span.hi, Mac_ { path: pth, tts: tts });
+ (keywords::Invalid.ident(), ast::TraitItemKind::Macro(mac))
+ } else {
+ let (constness, unsafety, abi) = match self.parse_fn_front_matter() {
+ Ok(cua) => cua,
+ Err(e) => {
+ loop {
+ match self.token {
+ token::Eof => break,
+ token::CloseDelim(token::Brace) |
+ token::Semi => {
+ self.bump();
+ break;
+ }
+ token::OpenDelim(token::Brace) => {
+ self.parse_token_tree()?;
+ break;
}
+ _ => self.bump(),
}
-
- return Err(e);
}
- };
- let ident = self.parse_ident()?;
- let mut generics = self.parse_generics()?;
+ return Err(e);
+ }
+ };
- let d = self.parse_fn_decl_with_self(|p: &mut Parser<'a>|{
- // This is somewhat dubious; We don't want to allow
- // argument names to be left off if there is a
- // definition...
- p.parse_arg_general(false)
- })?;
+ let ident = self.parse_ident()?;
+ let mut generics = self.parse_generics()?;
- generics.where_clause = self.parse_where_clause()?;
- let sig = ast::MethodSig {
- unsafety: unsafety,
- constness: constness,
- decl: d,
- generics: generics,
- abi: abi,
- };
+ let d = self.parse_fn_decl_with_self(|p: &mut Parser<'a>|{
+ // This is somewhat dubious; We don't want to allow
+ // argument names to be left off if there is a
+ // definition...
+ p.parse_arg_general(false)
+ })?;
- let body = match self.token {
- token::Semi => {
- self.bump();
- debug!("parse_trait_methods(): parsing required method");
- None
- }
- token::OpenDelim(token::Brace) => {
- debug!("parse_trait_methods(): parsing provided method");
- let (inner_attrs, body) =
- self.parse_inner_attrs_and_block()?;
- attrs.extend(inner_attrs.iter().cloned());
- Some(body)
- }
+ generics.where_clause = self.parse_where_clause()?;
+ let sig = ast::MethodSig {
+ unsafety: unsafety,
+ constness: constness,
+ decl: d,
+ generics: generics,
+ abi: abi,
+ };
- _ => {
- let token_str = self.this_token_to_string();
- return Err(self.fatal(&format!("expected `;` or `{{`, found `{}`",
- token_str)[..]))
- }
- };
- (ident, ast::TraitItemKind::Method(sig, body))
+ let body = match self.token {
+ token::Semi => {
+ self.bump();
+ debug!("parse_trait_methods(): parsing required method");
+ None
+ }
+ token::OpenDelim(token::Brace) => {
+ debug!("parse_trait_methods(): parsing provided method");
+ let (inner_attrs, body) = self.parse_inner_attrs_and_block()?;
+ attrs.extend(inner_attrs.iter().cloned());
+ Some(body)
+ }
+ _ => {
+ let token_str = self.this_token_to_string();
+ return Err(self.fatal(&format!("expected `;` or `{{`, found `{}`", token_str)));
+ }
};
+ (ident, ast::TraitItemKind::Method(sig, body))
+ };
+
Ok(TraitItem {
id: ast::DUMMY_NODE_ID,
ident: name,
// Parse the `; e` in `[ i32; e ]`
// where `e` is a const expression
let t = match self.maybe_parse_fixed_length_of_vec()? {
- None => TyKind::Vec(t),
- Some(suffix) => TyKind::FixedLengthVec(t, suffix)
+ None => TyKind::Slice(t),
+ Some(suffix) => TyKind::Array(t, suffix)
};
self.expect(&token::CloseDelim(token::Bracket))?;
t
TyKind::Path(Some(qself), path)
} else if self.token.is_path_start() {
let path = self.parse_path(PathStyle::Type)?;
- if self.check(&token::Not) {
+ if self.eat(&token::Not) {
// MACRO INVOCATION
- self.bump();
let delim = self.expect_open_delim()?;
let tts = self.parse_seq_to_end(&token::CloseDelim(delim),
SeqSep::none(),
/// Parses `lifetime_defs = [ lifetime_defs { ',' lifetime_defs } ]` where `lifetime_def =
/// lifetime [':' lifetimes]`
- pub fn parse_lifetime_defs(&mut self) -> PResult<'a, Vec<ast::LifetimeDef>> {
-
+ ///
+ /// If `followed_by_ty_params` is None, then we are in a context
+ /// where only lifetime parameters are allowed, and thus we should
+ /// error if we encounter attributes after the bound lifetimes.
+ ///
+ /// If `followed_by_ty_params` is Some(r), then there may be type
+ /// parameter bindings after the lifetimes, so we should pass
+ /// along the parsed attributes to be attached to the first such
+ /// type parmeter.
+ pub fn parse_lifetime_defs(&mut self,
+ followed_by_ty_params: Option<&mut Vec<ast::Attribute>>)
+ -> PResult<'a, Vec<ast::LifetimeDef>>
+ {
let mut res = Vec::new();
loop {
+ let attrs = self.parse_outer_attributes()?;
match self.token {
token::Lifetime(_) => {
let lifetime = self.parse_lifetime()?;
} else {
Vec::new()
};
- res.push(ast::LifetimeDef { lifetime: lifetime,
+ res.push(ast::LifetimeDef { attrs: attrs.into(),
+ lifetime: lifetime,
bounds: bounds });
}
_ => {
+ if let Some(recv) = followed_by_ty_params {
+ assert!(recv.is_empty());
+ *recv = attrs;
+ } else {
+ let msg = "trailing attribute after lifetime parameters";
+ return Err(self.fatal(msg));
+ }
+ debug!("parse_lifetime_defs ret {:?}", res);
return Ok(res);
}
}
let pth = self.parse_path(PathStyle::Expr)?;
// `!`, as an operator, is prefix, so we know this isn't that
- if self.check(&token::Not) {
+ if self.eat(&token::Not) {
// MACRO INVOCATION expression
- self.bump();
-
let delim = self.expect_open_delim()?;
- let tts = self.parse_seq_to_end(
- &token::CloseDelim(delim),
- SeqSep::none(),
- |p| p.parse_token_tree())?;
+ let tts = self.parse_seq_to_end(&token::CloseDelim(delim),
+ SeqSep::none(),
+ |p| p.parse_token_tree())?;
let hi = self.last_span.hi;
-
- return Ok(self.mk_mac_expr(lo,
- hi,
- Mac_ { path: pth, tts: tts },
- attrs));
+ return Ok(self.mk_mac_expr(lo, hi, Mac_ { path: pth, tts: tts }, attrs));
}
if self.check(&token::OpenDelim(token::Brace)) {
// This is a struct literal, unless we're prohibited
Restrictions::RESTRICTION_NO_STRUCT_LITERAL
);
if !prohibited {
- // It's a struct literal.
- self.bump();
- let mut fields = Vec::new();
- let mut base = None;
-
- attrs.extend(self.parse_inner_attributes()?);
-
- while self.token != token::CloseDelim(token::Brace) {
- if self.eat(&token::DotDot) {
- match self.parse_expr() {
- Ok(e) => {
- base = Some(e);
- }
- Err(mut e) => {
- e.emit();
- self.recover_stmt();
- }
- }
- break;
- }
-
- match self.parse_field() {
- Ok(f) => fields.push(f),
- Err(mut e) => {
- e.emit();
- self.recover_stmt();
- break;
- }
- }
-
- match self.expect_one_of(&[token::Comma],
- &[token::CloseDelim(token::Brace)]) {
- Ok(()) => {}
- Err(mut e) => {
- e.emit();
- self.recover_stmt();
- break;
- }
- }
- }
-
- hi = self.span.hi;
- self.expect(&token::CloseDelim(token::Brace))?;
- ex = ExprKind::Struct(pth, fields, base);
- return Ok(self.mk_expr(lo, hi, ex, attrs));
+ return self.parse_struct_expr(lo, pth, attrs);
}
}
return Ok(self.mk_expr(lo, hi, ex, attrs));
}
+ fn parse_struct_expr(&mut self, lo: BytePos, pth: ast::Path, mut attrs: ThinVec<Attribute>)
+ -> PResult<'a, P<Expr>> {
+ self.bump();
+ let mut fields = Vec::new();
+ let mut base = None;
+
+ attrs.extend(self.parse_inner_attributes()?);
+
+ while self.token != token::CloseDelim(token::Brace) {
+ if self.eat(&token::DotDot) {
+ match self.parse_expr() {
+ Ok(e) => {
+ base = Some(e);
+ }
+ Err(mut e) => {
+ e.emit();
+ self.recover_stmt();
+ }
+ }
+ break;
+ }
+
+ match self.parse_field() {
+ Ok(f) => fields.push(f),
+ Err(mut e) => {
+ e.emit();
+ self.recover_stmt();
+ break;
+ }
+ }
+
+ match self.expect_one_of(&[token::Comma],
+ &[token::CloseDelim(token::Brace)]) {
+ Ok(()) => {}
+ Err(mut e) => {
+ e.emit();
+ self.recover_stmt();
+ break;
+ }
+ }
+ }
+
+ let hi = self.span.hi;
+ self.expect(&token::CloseDelim(token::Brace))?;
+ return Ok(self.mk_expr(lo, hi, ExprKind::Struct(pth, fields, base), attrs));
+ }
+
fn parse_or_use_outer_attributes(&mut self,
already_parsed_attrs: Option<ThinVec<Attribute>>)
-> PResult<'a, ThinVec<Attribute>> {
let lo = self.span.lo;
let pat;
match self.token {
- token::Underscore => {
- // Parse _
- self.bump();
- pat = PatKind::Wild;
- }
- token::BinOp(token::And) | token::AndAnd => {
- // Parse &pat / &mut pat
- self.expect_and()?;
- let mutbl = self.parse_mutability()?;
- if let token::Lifetime(ident) = self.token {
- return Err(self.fatal(&format!("unexpected lifetime `{}` in pattern", ident)));
+ token::Underscore => {
+ // Parse _
+ self.bump();
+ pat = PatKind::Wild;
+ }
+ token::BinOp(token::And) | token::AndAnd => {
+ // Parse &pat / &mut pat
+ self.expect_and()?;
+ let mutbl = self.parse_mutability()?;
+ if let token::Lifetime(ident) = self.token {
+ return Err(self.fatal(&format!("unexpected lifetime `{}` in pattern", ident)));
+ }
+ let subpat = self.parse_pat()?;
+ pat = PatKind::Ref(subpat, mutbl);
+ }
+ token::OpenDelim(token::Paren) => {
+ // Parse (pat,pat,pat,...) as tuple pattern
+ self.bump();
+ let (fields, ddpos) = self.parse_pat_tuple_elements(true)?;
+ self.expect(&token::CloseDelim(token::Paren))?;
+ pat = PatKind::Tuple(fields, ddpos);
+ }
+ token::OpenDelim(token::Bracket) => {
+ // Parse [pat,pat,...] as slice pattern
+ self.bump();
+ let (before, slice, after) = self.parse_pat_vec_elements()?;
+ self.expect(&token::CloseDelim(token::Bracket))?;
+ pat = PatKind::Slice(before, slice, after);
}
-
- let subpat = self.parse_pat()?;
- pat = PatKind::Ref(subpat, mutbl);
- }
- token::OpenDelim(token::Paren) => {
- // Parse (pat,pat,pat,...) as tuple pattern
- self.bump();
- let (fields, ddpos) = self.parse_pat_tuple_elements(true)?;
- self.expect(&token::CloseDelim(token::Paren))?;
- pat = PatKind::Tuple(fields, ddpos);
- }
- token::OpenDelim(token::Bracket) => {
- // Parse [pat,pat,...] as slice pattern
- self.bump();
- let (before, slice, after) = self.parse_pat_vec_elements()?;
- self.expect(&token::CloseDelim(token::Bracket))?;
- pat = PatKind::Vec(before, slice, after);
- }
- _ => {
// At this point, token != _, &, &&, (, [
- if self.eat_keyword(keywords::Mut) {
+ _ => if self.eat_keyword(keywords::Mut) {
// Parse mut ident @ pat
pat = self.parse_pat_ident(BindingMode::ByValue(Mutability::Mutable))?;
} else if self.eat_keyword(keywords::Ref) {
// Parse box pat
let subpat = self.parse_pat()?;
pat = PatKind::Box(subpat);
+ } else if self.token.is_ident() && self.token.is_path_start() &&
+ self.look_ahead(1, |t| match *t {
+ token::OpenDelim(token::Paren) | token::OpenDelim(token::Brace) |
+ token::DotDotDot | token::ModSep | token::Not => false,
+ _ => true,
+ }) {
+ // Parse ident @ pat
+ // This can give false positives and parse nullary enums,
+ // they are dealt with later in resolve
+ let binding_mode = BindingMode::ByValue(Mutability::Immutable);
+ pat = self.parse_pat_ident(binding_mode)?;
} else if self.token.is_path_start() {
// Parse pattern starting with a path
- if self.token.is_ident() && self.look_ahead(1, |t| *t != token::DotDotDot &&
- *t != token::OpenDelim(token::Brace) &&
- *t != token::OpenDelim(token::Paren) &&
- *t != token::ModSep) {
- // Plain idents have some extra abilities here compared to general paths
- if self.look_ahead(1, |t| *t == token::Not) {
+ let (qself, path) = if self.eat_lt() {
+ // Parse a qualified path
+ let (qself, path) = self.parse_qualified_path(PathStyle::Expr)?;
+ (Some(qself), path)
+ } else {
+ // Parse an unqualified path
+ (None, self.parse_path(PathStyle::Expr)?)
+ };
+ match self.token {
+ token::Not if qself.is_none() => {
// Parse macro invocation
- let path = self.parse_ident_into_path()?;
self.bump();
let delim = self.expect_open_delim()?;
- let tts = self.parse_seq_to_end(
- &token::CloseDelim(delim),
- SeqSep::none(), |p| p.parse_token_tree())?;
- let mac = Mac_ { path: path, tts: tts };
- pat = PatKind::Mac(codemap::Spanned {node: mac,
- span: mk_sp(lo, self.last_span.hi)});
- } else {
- // Parse ident @ pat
- // This can give false positives and parse nullary enums,
- // they are dealt with later in resolve
- let binding_mode = BindingMode::ByValue(Mutability::Immutable);
- pat = self.parse_pat_ident(binding_mode)?;
+ let tts = self.parse_seq_to_end(&token::CloseDelim(delim),
+ SeqSep::none(),
+ |p| p.parse_token_tree())?;
+ let mac = spanned(lo, self.last_span.hi, Mac_ { path: path, tts: tts });
+ pat = PatKind::Mac(mac);
}
- } else {
- let (qself, path) = if self.eat_lt() {
- // Parse a qualified path
- let (qself, path) =
- self.parse_qualified_path(PathStyle::Expr)?;
- (Some(qself), path)
- } else {
- // Parse an unqualified path
- (None, self.parse_path(PathStyle::Expr)?)
- };
- match self.token {
- token::DotDotDot => {
+ token::DotDotDot => {
// Parse range
let hi = self.last_span.hi;
let begin =
self.bump();
let end = self.parse_pat_range_end()?;
pat = PatKind::Range(begin, end);
- }
- token::OpenDelim(token::Brace) => {
- if qself.is_some() {
+ }
+ token::OpenDelim(token::Brace) => {
+ if qself.is_some() {
return Err(self.fatal("unexpected `{` after qualified path"));
}
// Parse struct pattern
});
self.bump();
pat = PatKind::Struct(path, fields, etc);
- }
- token::OpenDelim(token::Paren) => {
+ }
+ token::OpenDelim(token::Paren) => {
if qself.is_some() {
return Err(self.fatal("unexpected `(` after qualified path"));
}
let (fields, ddpos) = self.parse_pat_tuple_elements(false)?;
self.expect(&token::CloseDelim(token::Paren))?;
pat = PatKind::TupleStruct(path, fields, ddpos)
- }
- _ => {
- pat = PatKind::Path(qself, path);
- }
}
+ _ => pat = PatKind::Path(qself, path),
}
} else {
// Try to parse everything else as literal with optional minus
}
}
}
- }
}
let hi = self.last_span.hi;
node: StmtKind::Local(self.parse_local(attrs.into())?),
span: mk_sp(lo, self.last_span.hi),
}
- } else if self.token.is_ident()
- && !self.token.is_any_keyword()
- && self.look_ahead(1, |t| *t == token::Not) {
- // it's a macro invocation:
+ } else if self.token.is_path_start() && self.token != token::Lt && {
+ !self.check_keyword(keywords::Union) ||
+ self.look_ahead(1, |t| *t == token::Not || *t == token::ModSep)
+ } {
+ let pth = self.parse_path(PathStyle::Expr)?;
- // Potential trouble: if we allow macros with paths instead of
- // idents, we'd need to look ahead past the whole path here...
- let pth = self.parse_ident_into_path()?;
- self.bump();
+ if !self.eat(&token::Not) {
+ let expr = if self.check(&token::OpenDelim(token::Brace)) {
+ self.parse_struct_expr(lo, pth, ThinVec::new())?
+ } else {
+ let hi = self.last_span.hi;
+ self.mk_expr(lo, hi, ExprKind::Path(None, pth), ThinVec::new())
+ };
+
+ let expr = self.with_res(Restrictions::RESTRICTION_STMT_EXPR, |this| {
+ let expr = this.parse_dot_or_call_expr_with(expr, lo, attrs.into())?;
+ this.parse_assoc_expr_with(0, LhsExpr::AlreadyParsed(expr))
+ })?;
+
+ return Ok(Some(Stmt {
+ id: ast::DUMMY_NODE_ID,
+ node: StmtKind::Expr(expr),
+ span: mk_sp(lo, self.last_span.hi),
+ }));
+ }
+ // it's a macro invocation
let id = match self.token {
token::OpenDelim(_) => keywords::Invalid.ident(), // no special identifier
_ => self.parse_ident()?,
}
/// Matches typaram = IDENT (`?` unbound)? optbounds ( EQ ty )?
- fn parse_ty_param(&mut self) -> PResult<'a, TyParam> {
+ fn parse_ty_param(&mut self, preceding_attrs: Vec<ast::Attribute>) -> PResult<'a, TyParam> {
let span = self.span;
let ident = self.parse_ident()?;
};
Ok(TyParam {
+ attrs: preceding_attrs.into(),
ident: ident,
id: ast::DUMMY_NODE_ID,
bounds: bounds,
let span_lo = self.span.lo;
if self.eat(&token::Lt) {
- let lifetime_defs = self.parse_lifetime_defs()?;
+ // Upon encountering attribute in generics list, we do not
+ // know if it is attached to lifetime or to type param.
+ //
+ // Solution: 1. eagerly parse attributes in tandem with
+ // lifetime defs, 2. store last set of parsed (and unused)
+ // attributes in `attrs`, and 3. pass in those attributes
+ // when parsing formal type param after lifetime defs.
+ let mut attrs = vec![];
+ let lifetime_defs = self.parse_lifetime_defs(Some(&mut attrs))?;
let mut seen_default = false;
+ let mut post_lifetime_attrs = Some(attrs);
let ty_params = self.parse_seq_to_gt(Some(token::Comma), |p| {
p.forbid_lifetime()?;
- let ty_param = p.parse_ty_param()?;
+ // Move out of `post_lifetime_attrs` if present. O/w
+ // not first type param: parse attributes anew.
+ let attrs = match post_lifetime_attrs.as_mut() {
+ None => p.parse_outer_attributes()?,
+ Some(attrs) => mem::replace(attrs, vec![]),
+ };
+ post_lifetime_attrs = None;
+ let ty_param = p.parse_ty_param(attrs)?;
if ty_param.default.is_some() {
seen_default = true;
} else if seen_default {
}
Ok(ty_param)
})?;
+ if let Some(attrs) = post_lifetime_attrs {
+ if !attrs.is_empty() {
+ self.span_err(attrs[0].span,
+ "trailing attribute after lifetime parameters");
+ }
+ }
Ok(ast::Generics {
lifetimes: lifetime_defs,
ty_params: ty_params,
let bound_lifetimes = if self.eat_keyword(keywords::For) {
// Higher ranked constraint.
self.expect(&token::Lt)?;
- let lifetime_defs = self.parse_lifetime_defs()?;
+ let lifetime_defs = self.parse_lifetime_defs(None)?;
self.expect_gt()?;
lifetime_defs
} else {
fn parse_impl_method(&mut self, vis: &Visibility)
-> PResult<'a, (Ident, Vec<ast::Attribute>, ast::ImplItemKind)> {
// code copied from parse_macro_use_or_failure... abstraction!
- if !self.token.is_any_keyword()
- && self.look_ahead(1, |t| *t == token::Not)
- && (self.look_ahead(2, |t| *t == token::OpenDelim(token::Paren))
- || self.look_ahead(2, |t| *t == token::OpenDelim(token::Brace))) {
+ if self.token.is_path_start() {
// method macro.
let last_span = self.last_span;
self.complain_if_pub_macro(&vis, last_span);
let lo = self.span.lo;
- let pth = self.parse_ident_into_path()?;
+ let pth = self.parse_path(PathStyle::Mod)?;
self.expect(&token::Not)?;
// eat a matched-delimiter token tree:
let tts = self.parse_seq_to_end(&token::CloseDelim(delim),
SeqSep::none(),
|p| p.parse_token_tree())?;
- let m_ = Mac_ { path: pth, tts: tts };
- let m: ast::Mac = codemap::Spanned { node: m_,
- span: mk_sp(lo,
- self.last_span.hi) };
if delim != token::Brace {
self.expect(&token::Semi)?
}
- Ok((keywords::Invalid.ident(), vec![], ast::ImplItemKind::Macro(m)))
+
+ let mac = spanned(lo, self.last_span.hi, Mac_ { path: pth, tts: tts });
+ Ok((keywords::Invalid.ident(), vec![], ast::ImplItemKind::Macro(mac)))
} else {
let (constness, unsafety, abi) = self.parse_fn_front_matter()?;
let ident = self.parse_ident()?;
fn parse_late_bound_lifetime_defs(&mut self) -> PResult<'a, Vec<ast::LifetimeDef>> {
if self.eat_keyword(keywords::For) {
self.expect(&token::Lt)?;
- let lifetime_defs = self.parse_lifetime_defs()?;
+ let lifetime_defs = self.parse_lifetime_defs(None)?;
self.expect_gt()?;
Ok(lifetime_defs)
} else {
}
} else {
let directory = self.directory.clone();
- self.push_directory(id, &outer_attrs);
+ let restrictions = self.push_directory(id, &outer_attrs);
self.expect(&token::OpenDelim(token::Brace))?;
let mod_inner_lo = self.span.lo;
let attrs = self.parse_inner_attributes()?;
- let m = self.parse_mod_items(&token::CloseDelim(token::Brace), mod_inner_lo)?;
+ let m = self.with_res(restrictions, |this| {
+ this.parse_mod_items(&token::CloseDelim(token::Brace), mod_inner_lo)
+ })?;
self.directory = directory;
Ok((id, ItemKind::Mod(m), Some(attrs)))
}
}
- fn push_directory(&mut self, id: Ident, attrs: &[Attribute]) {
- let default_path = self.id_to_interned_str(id);
- let file_path = match ::attr::first_attr_value_str_by_name(attrs, "path") {
- Some(d) => d,
- None => default_path,
- };
- self.directory.push(&*file_path)
+ fn push_directory(&mut self, id: Ident, attrs: &[Attribute]) -> Restrictions {
+ if let Some(path) = ::attr::first_attr_value_str_by_name(attrs, "path") {
+ self.directory.push(&*path);
+ self.restrictions - Restrictions::NO_NONINLINE_MOD
+ } else {
+ let default_path = self.id_to_interned_str(id);
+ self.directory.push(&*default_path);
+ self.restrictions
+ }
}
pub fn submod_path_from_attr(attrs: &[ast::Attribute], dir_path: &Path) -> Option<PathBuf> {
lo: BytePos,
visibility: Visibility
) -> PResult<'a, Option<P<Item>>> {
- if macros_allowed && !self.token.is_any_keyword()
- && self.look_ahead(1, |t| *t == token::Not)
- && (self.look_ahead(2, |t| t.is_ident())
- || self.look_ahead(2, |t| *t == token::OpenDelim(token::Paren))
- || self.look_ahead(2, |t| *t == token::OpenDelim(token::Brace))) {
+ if macros_allowed && self.token.is_path_start() {
// MACRO INVOCATION ITEM
let last_span = self.last_span;
let mac_lo = self.span.lo;
// item macro.
- let pth = self.parse_ident_into_path()?;
+ let pth = self.parse_path(PathStyle::Mod)?;
self.expect(&token::Not)?;
// a 'special' identifier (like what `macro_rules!` uses)
let tts = self.parse_seq_to_end(&token::CloseDelim(delim),
SeqSep::none(),
|p| p.parse_token_tree())?;
- // single-variant-enum... :
- let m = Mac_ { path: pth, tts: tts };
- let m: ast::Mac = codemap::Spanned { node: m,
- span: mk_sp(mac_lo,
- self.last_span.hi) };
-
if delim != token::Brace {
if !self.eat(&token::Semi) {
let last_span = self.last_span;
}
}
- let item_ = ItemKind::Mac(m);
- let last_span = self.last_span;
- let item = self.mk_item(lo,
- last_span.hi,
- id,
- item_,
- visibility,
- attrs);
+ let hi = self.last_span.hi;
+ let mac = spanned(mac_lo, hi, Mac_ { path: pth, tts: tts });
+ let item = self.mk_item(lo, hi, id, ItemKind::Mac(mac), visibility, attrs);
return Ok(Some(item));
}
_ => Err(self.fatal("expected string literal"))
}
}
-
- pub fn ensure_complete_parse<F>(&mut self, allow_semi: bool, on_err: F)
- where F: FnOnce(&Parser)
- {
- if allow_semi && self.token == token::Semi {
- self.bump();
- }
- if self.token != token::Eof {
- on_err(self);
- }
- }
}
try!(self.maybe_print_comment(ty.span.lo));
try!(self.ibox(0));
match ty.node {
- ast::TyKind::Vec(ref ty) => {
+ ast::TyKind::Slice(ref ty) => {
try!(word(&mut self.s, "["));
try!(self.print_type(&ty));
try!(word(&mut self.s, "]"));
ast::TyKind::ImplTrait(ref bounds) => {
try!(self.print_bounds("impl ", &bounds[..]));
}
- ast::TyKind::FixedLengthVec(ref ty, ref v) => {
+ ast::TyKind::Array(ref ty, ref v) => {
try!(word(&mut self.s, "["));
try!(self.print_type(&ty));
try!(word(&mut self.s, "; "));
try!(word(&mut self.s, "..."));
try!(self.print_expr(&end));
}
- PatKind::Vec(ref before, ref slice, ref after) => {
+ PatKind::Slice(ref before, ref slice, ref after) => {
try!(word(&mut self.s, "["));
try!(self.commasep(Inconsistent,
&before[..],
use std::slice;
use std::mem;
use std::vec;
-use attr;
+use attr::{self, HasAttrs};
use syntax_pos::{self, DUMMY_SP, NO_EXPANSION, Span, FileMap, BytePos};
use std::rc::Rc;
}
debug!("current path: {}", path_name_i(&self.cx.path));
- let i = if is_test_fn(&self.cx, &i) || is_bench_fn(&self.cx, &i) {
+ if is_test_fn(&self.cx, &i) || is_bench_fn(&self.cx, &i) {
match i.node {
ast::ItemKind::Fn(_, ast::Unsafety::Unsafe, _, _, _, _) => {
let diag = self.cx.span_diagnostic;
};
self.cx.testfns.push(test);
self.tests.push(i.ident);
- // debug!("have {} test/bench functions",
- // cx.testfns.len());
-
- // Make all tests public so we can call them from outside
- // the module (note that the tests are re-exported and must
- // be made public themselves to avoid privacy errors).
- i.map(|mut i| {
- i.vis = ast::Visibility::Public;
- i
- })
}
}
- } else {
- i
- };
+ }
+ let mut item = i.unwrap();
// We don't want to recurse into anything other than mods, since
// mods or tests inside of functions will break things
- let res = match i.node {
- ast::ItemKind::Mod(..) => fold::noop_fold_item(i, self),
- _ => SmallVector::one(i),
- };
+ if let ast::ItemKind::Mod(module) = item.node {
+ let tests = mem::replace(&mut self.tests, Vec::new());
+ let tested_submods = mem::replace(&mut self.tested_submods, Vec::new());
+ let mut mod_folded = fold::noop_fold_mod(module, self);
+ let tests = mem::replace(&mut self.tests, tests);
+ let tested_submods = mem::replace(&mut self.tested_submods, tested_submods);
+
+ if !tests.is_empty() || !tested_submods.is_empty() {
+ let (it, sym) = mk_reexport_mod(&mut self.cx, item.id, tests, tested_submods);
+ mod_folded.items.push(it);
+
+ if !self.cx.path.is_empty() {
+ self.tested_submods.push((self.cx.path[self.cx.path.len()-1], sym));
+ } else {
+ debug!("pushing nothing, sym: {:?}", sym);
+ self.cx.toplevel_reexport = Some(sym);
+ }
+ }
+ item.node = ast::ItemKind::Mod(mod_folded);
+ }
if ident.name != keywords::Invalid.name() {
self.cx.path.pop();
}
- res
- }
-
- fn fold_mod(&mut self, m: ast::Mod) -> ast::Mod {
- let tests = mem::replace(&mut self.tests, Vec::new());
- let tested_submods = mem::replace(&mut self.tested_submods, Vec::new());
- let mut mod_folded = fold::noop_fold_mod(m, self);
- let tests = mem::replace(&mut self.tests, tests);
- let tested_submods = mem::replace(&mut self.tested_submods, tested_submods);
-
- if !tests.is_empty() || !tested_submods.is_empty() {
- let (it, sym) = mk_reexport_mod(&mut self.cx, tests, tested_submods);
- mod_folded.items.push(it);
-
- if !self.cx.path.is_empty() {
- self.tested_submods.push((self.cx.path[self.cx.path.len()-1], sym));
- } else {
- debug!("pushing nothing, sym: {:?}", sym);
- self.cx.toplevel_reexport = Some(sym);
- }
- }
-
- mod_folded
+ SmallVector::one(P(item))
}
fn fold_mac(&mut self, mac: ast::Mac) -> ast::Mac { mac }
fn fold_mac(&mut self, mac: ast::Mac) -> ast::Mac { mac }
}
-fn mk_reexport_mod(cx: &mut TestCtxt, tests: Vec<ast::Ident>,
+fn mk_reexport_mod(cx: &mut TestCtxt,
parent: ast::NodeId, tests: Vec<ast::Ident>,
tested_submods: Vec<(ast::Ident, ast::Ident)>) -> (P<ast::Item>, ast::Ident) {
let super_ = token::str_to_ident("super");
+ // Generate imports with `#[allow(private_in_public)]` to work around issue #36768.
+ let allow_private_in_public = cx.ext_cx.attribute(DUMMY_SP, cx.ext_cx.meta_list(
+ DUMMY_SP,
+ InternedString::new("allow"),
+ vec![cx.ext_cx.meta_list_item_word(DUMMY_SP, InternedString::new("private_in_public"))],
+ ));
let items = tests.into_iter().map(|r| {
cx.ext_cx.item_use_simple(DUMMY_SP, ast::Visibility::Public,
cx.ext_cx.path(DUMMY_SP, vec![super_, r]))
+ .map_attrs(|_| vec![allow_private_in_public.clone()])
}).chain(tested_submods.into_iter().map(|(r, sym)| {
let path = cx.ext_cx.path(DUMMY_SP, vec![super_, r, sym]);
cx.ext_cx.item_use_simple_(DUMMY_SP, ast::Visibility::Public, r, path)
+ .map_attrs(|_| vec![allow_private_in_public.clone()])
})).collect();
let reexport_mod = ast::Mod {
};
let sym = token::gensym_ident("__test_reexports");
+ let parent = if parent == ast::DUMMY_NODE_ID { ast::CRATE_NODE_ID } else { parent };
+ cx.ext_cx.current_expansion.mark = cx.ext_cx.resolver.get_module_scope(parent);
let it = cx.ext_cx.monotonic_expander().fold_item(P(ast::Item {
ident: sym.clone(),
attrs: Vec::new(),
let static_lt = ecx.lifetime(sp, keywords::StaticLifetime.name());
// &'static [self::test::TestDescAndFn]
let static_type = ecx.ty_rptr(sp,
- ecx.ty(sp, ast::TyKind::Vec(struct_type)),
+ ecx.ty(sp, ast::TyKind::Slice(struct_type)),
Some(static_lt),
ast::Mutability::Immutable);
// static TESTS: $static_type = &[...];
pub fn walk_lifetime_def<V: Visitor>(visitor: &mut V, lifetime_def: &LifetimeDef) {
visitor.visit_lifetime(&lifetime_def.lifetime);
walk_list!(visitor, visit_lifetime, &lifetime_def.bounds);
+ walk_list!(visitor, visit_attribute, &*lifetime_def.attrs);
}
pub fn walk_poly_trait_ref<V>(visitor: &mut V, trait_ref: &PolyTraitRef, _: &TraitBoundModifier)
pub fn walk_ty<V: Visitor>(visitor: &mut V, typ: &Ty) {
match typ.node {
- TyKind::Vec(ref ty) | TyKind::Paren(ref ty) => {
+ TyKind::Slice(ref ty) | TyKind::Paren(ref ty) => {
visitor.visit_ty(ty)
}
TyKind::Ptr(ref mutable_type) => {
visitor.visit_ty(ty);
walk_list!(visitor, visit_ty_param_bound, bounds);
}
- TyKind::FixedLengthVec(ref ty, ref expression) => {
+ TyKind::Array(ref ty, ref expression) => {
visitor.visit_ty(ty);
visitor.visit_expr(expression)
}
visitor.visit_expr(upper_bound)
}
PatKind::Wild => (),
- PatKind::Vec(ref prepatterns, ref slice_pattern, ref postpatterns) => {
+ PatKind::Slice(ref prepatterns, ref slice_pattern, ref postpatterns) => {
walk_list!(visitor, visit_pat, prepatterns);
walk_list!(visitor, visit_pat, slice_pattern);
walk_list!(visitor, visit_pat, postpatterns);
visitor.visit_ident(param.span, param.ident);
walk_list!(visitor, visit_ty_param_bound, ¶m.bounds);
walk_list!(visitor, visit_ty, ¶m.default);
+ walk_list!(visitor, visit_attribute, &*param.attrs);
}
walk_list!(visitor, visit_lifetime_def, &generics.lifetimes);
for predicate in &generics.where_clause.predicates {
tts: &[tokenstream::TokenTree])
-> Box<base::MacResult + 'cx> {
if !cx.ecfg.enable_asm() {
- feature_gate::emit_feature_err(&cx.parse_sess.span_diagnostic,
+ feature_gate::emit_feature_err(&cx.parse_sess,
"asm",
sp,
feature_gate::GateIssue::Language,
tts: &[TokenTree])
-> Box<base::MacResult + 'cx> {
if !cx.ecfg.enable_concat_idents() {
- feature_gate::emit_feature_err(&cx.parse_sess.span_diagnostic,
+ feature_gate::emit_feature_err(&cx.parse_sess,
"concat_idents",
sp,
feature_gate::GateIssue::Language,
bounds.push((*declared_bound).clone());
}
- cx.typaram(self.span, ty_param.ident, P::from_vec(bounds), None)
+ cx.typaram(self.span, ty_param.ident, vec![], P::from_vec(bounds), None)
}));
// and similarly for where clauses
fn mk_ty_param(cx: &ExtCtxt,
span: Span,
name: &str,
+ attrs: &[ast::Attribute],
bounds: &[Path],
self_ident: Ident,
self_generics: &Generics)
cx.typarambound(path)
})
.collect();
- cx.typaram(span, cx.ident_of(name), bounds, None)
+ cx.typaram(span, cx.ident_of(name), attrs.to_owned(), bounds, None)
}
fn mk_generics(lifetimes: Vec<ast::LifetimeDef>, ty_params: Vec<ast::TyParam>, span: Span)
let bounds = bounds.iter()
.map(|b| cx.lifetime(span, cx.ident_of(*b).name))
.collect();
- cx.lifetime_def(span, cx.ident_of(*lt).name, bounds)
+ cx.lifetime_def(span, cx.ident_of(*lt).name, vec![], bounds)
})
.collect();
let ty_params = self.bounds
.map(|t| {
match *t {
(ref name, ref bounds) => {
- mk_ty_param(cx, span, *name, bounds, self_ty, self_generics)
+ mk_ty_param(cx, span, *name, &[], bounds, self_ty, self_generics)
}
}
})
cx.span_err(mitem.span, "unexpected value in `derive`");
}
- let traits = mitem.meta_item_list().unwrap_or(&[]);
+ let mut traits = mitem.meta_item_list().unwrap_or(&[]).to_owned();
if traits.is_empty() {
cx.span_warn(mitem.span, "empty trait list in `derive`");
}
+ // First, weed out malformed #[derive]
+ traits.retain(|titem| {
+ if titem.word().is_none() {
+ cx.span_err(titem.span, "malformed `derive` entry");
+ false
+ } else {
+ true
+ }
+ });
+
+ // Next, check for old-style #[derive(Foo)]
+ //
+ // These all get expanded to `#[derive_Foo]` and will get expanded first. If
+ // we actually add any attributes here then we return to get those expanded
+ // and then eventually we'll come back to finish off the other derive modes.
+ let mut new_attributes = Vec::new();
+ traits.retain(|titem| {
+ let tword = titem.word().unwrap();
+ let tname = tword.name();
+
+ let derive_mode = ast::Ident::with_empty_ctxt(intern(&tname));
+ let derive_mode = cx.resolver.resolve_derive_mode(derive_mode);
+ if is_builtin_trait(&tname) || derive_mode.is_some() {
+ return true
+ }
+
+ if !cx.ecfg.enable_custom_derive() {
+ feature_gate::emit_feature_err(&cx.parse_sess,
+ "custom_derive",
+ titem.span,
+ feature_gate::GateIssue::Language,
+ feature_gate::EXPLAIN_CUSTOM_DERIVE);
+ } else {
+ let name = intern_and_get_ident(&format!("derive_{}", tname));
+ let mitem = cx.meta_word(titem.span, name);
+ new_attributes.push(cx.attribute(mitem.span, mitem));
+ }
+ false
+ });
+ if new_attributes.len() > 0 {
+ item = item.map(|mut i| {
+ let list = cx.meta_list(mitem.span,
+ intern_and_get_ident("derive"),
+ traits);
+ i.attrs.extend(new_attributes);
+ i.attrs.push(cx.attribute(mitem.span, list));
+ i
+ });
+ return vec![Annotatable::Item(item)]
+ }
+
+ // Now check for macros-1.1 style custom #[derive].
+ //
+ // Expand each of them in order given, but *before* we expand any built-in
+ // derive modes. The logic here is to:
+ //
+ // 1. Collect the remaining `#[derive]` annotations into a list. If
+ // there are any left, attach a `#[derive]` attribute to the item
+ // that we're currently expanding with the remaining derive modes.
+ // 2. Manufacture a `#[derive(Foo)]` attribute to pass to the expander.
+ // 3. Expand the current item we're expanding, getting back a list of
+ // items that replace it.
+ // 4. Extend the returned list with the current list of items we've
+ // collected so far.
+ // 5. Return everything!
+ //
+ // If custom derive extensions end up threading through the `#[derive]`
+ // attribute, we'll get called again later on to continue expanding
+ // those modes.
+ let macros_11_derive = traits.iter()
+ .cloned()
+ .enumerate()
+ .filter(|&(_, ref name)| !is_builtin_trait(&name.name().unwrap()))
+ .next();
+ if let Some((i, titem)) = macros_11_derive {
+ let tname = ast::Ident::with_empty_ctxt(intern(&titem.name().unwrap()));
+ let ext = cx.resolver.resolve_derive_mode(tname).unwrap();
+ traits.remove(i);
+ if traits.len() > 0 {
+ item = item.map(|mut i| {
+ let list = cx.meta_list(mitem.span,
+ intern_and_get_ident("derive"),
+ traits);
+ i.attrs.push(cx.attribute(mitem.span, list));
+ i
+ });
+ }
+ let titem = cx.meta_list_item_word(titem.span, titem.name().unwrap());
+ let mitem = cx.meta_list(titem.span,
+ intern_and_get_ident("derive"),
+ vec![titem]);
+ let item = Annotatable::Item(item);
+ return ext.expand(cx, mitem.span, &mitem, item)
+ }
+
+ // Ok, at this point we know that there are no old-style `#[derive_Foo]` nor
+ // any macros-1.1 style `#[derive(Foo)]`. Expand all built-in traits here.
+
// RFC #1445. `#[derive(PartialEq, Eq)]` adds a (trusted)
// `#[structural_match]` attribute.
if traits.iter().filter_map(|t| t.name()).any(|t| t == "PartialEq") &&
});
}
- let mut other_items = Vec::new();
-
- let mut iter = traits.iter();
- while let Some(titem) = iter.next() {
-
- let tword = match titem.word() {
- Some(name) => name,
- None => {
- cx.span_err(titem.span, "malformed `derive` entry");
- continue
- }
+ let mut items = Vec::new();
+ for titem in traits.iter() {
+ let tname = titem.word().unwrap().name();
+ let name = intern_and_get_ident(&format!("derive({})", tname));
+ let mitem = cx.meta_word(titem.span, name);
+
+ let span = Span {
+ expn_id: cx.codemap().record_expansion(codemap::ExpnInfo {
+ call_site: titem.span,
+ callee: codemap::NameAndSpan {
+ format: codemap::MacroAttribute(intern(&format!("derive({})", tname))),
+ span: Some(titem.span),
+ allow_internal_unstable: true,
+ },
+ }),
+ ..titem.span
};
- let tname = tword.name();
- // If this is a built-in derive mode, then we expand it immediately
- // here.
- if is_builtin_trait(&tname) {
- let name = intern_and_get_ident(&format!("derive({})", tname));
- let mitem = cx.meta_word(titem.span, name);
-
- let span = Span {
- expn_id: cx.codemap().record_expansion(codemap::ExpnInfo {
- call_site: titem.span,
- callee: codemap::NameAndSpan {
- format: codemap::MacroAttribute(intern(&format!("derive({})", tname))),
- span: Some(titem.span),
- allow_internal_unstable: true,
- },
- }),
- ..titem.span
- };
-
- let my_item = Annotatable::Item(item);
- expand_builtin(&tname, cx, span, &mitem, &my_item, &mut |a| {
- other_items.push(a);
- });
- item = my_item.expect_item();
-
- // Otherwise if this is a `rustc_macro`-style derive mode, we process it
- // here. The logic here is to:
- //
- // 1. Collect the remaining `#[derive]` annotations into a list. If
- // there are any left, attach a `#[derive]` attribute to the item
- // that we're currently expanding with the remaining derive modes.
- // 2. Manufacture a `#[derive(Foo)]` attribute to pass to the expander.
- // 3. Expand the current item we're expanding, getting back a list of
- // items that replace it.
- // 4. Extend the returned list with the current list of items we've
- // collected so far.
- // 5. Return everything!
- //
- // If custom derive extensions end up threading through the `#[derive]`
- // attribute, we'll get called again later on to continue expanding
- // those modes.
- } else if let Some(ext) =
- cx.resolver.resolve_derive_mode(ast::Ident::with_empty_ctxt(intern(&tname))) {
- let remaining_derives = iter.cloned().collect::<Vec<_>>();
- if remaining_derives.len() > 0 {
- let list = cx.meta_list(titem.span,
- intern_and_get_ident("derive"),
- remaining_derives);
- let attr = cx.attribute(titem.span, list);
- item = item.map(|mut i| {
- i.attrs.push(attr);
- i
- });
- }
- let titem = cx.meta_list_item_word(titem.span, tname.clone());
- let mitem = cx.meta_list(titem.span,
- intern_and_get_ident("derive"),
- vec![titem]);
- let item = Annotatable::Item(item);
- let mut items = ext.expand(cx, mitem.span, &mitem, item);
- items.extend(other_items);
- return items
-
- // If we've gotten this far then it means that we're in the territory of
- // the old custom derive mechanism. If the feature isn't enabled, we
- // issue an error, otherwise manufacture the `derive_Foo` attribute.
- } else if !cx.ecfg.enable_custom_derive() {
- feature_gate::emit_feature_err(&cx.parse_sess.span_diagnostic,
- "custom_derive",
- titem.span,
- feature_gate::GateIssue::Language,
- feature_gate::EXPLAIN_CUSTOM_DERIVE);
- } else {
- let name = intern_and_get_ident(&format!("derive_{}", tname));
- let mitem = cx.meta_word(titem.span, name);
- item = item.map(|mut i| {
- i.attrs.push(cx.attribute(mitem.span, mitem));
- i
- });
- }
+ let my_item = Annotatable::Item(item);
+ expand_builtin(&tname, cx, span, &mitem, &my_item, &mut |a| {
+ items.push(a);
+ });
+ item = my_item.expect_item();
}
- other_items.insert(0, Annotatable::Item(item));
- return other_items
+ items.insert(0, Annotatable::Item(item));
+ return items
}
macro_rules! derive_traits {
-> P<ast::Expr> {
let sp = piece_ty.span;
let ty = ecx.ty_rptr(sp,
- ecx.ty(sp, ast::TyKind::Vec(piece_ty)),
+ ecx.ty(sp, ast::TyKind::Slice(piece_ty)),
Some(ecx.lifetime(sp, keywords::StaticLifetime.name())),
ast::Mutability::Immutable);
let slice = ecx.expr_vec_slice(sp, pieces);
use std::rc::Rc;
use syntax::ast;
use syntax::ext::base::{MacroExpanderFn, NormalTT, IdentTT, MultiModifier};
-use syntax::ext::hygiene::Mark;
use syntax::ext::tt::macro_rules::MacroRulesExpander;
use syntax::parse::token::intern;
pub fn register_builtins(resolver: &mut syntax::ext::base::Resolver, enable_quotes: bool) {
let mut register = |name, ext| {
- resolver.add_ext(Mark::root(), ast::Ident::with_empty_ctxt(intern(name)), Rc::new(ext));
+ resolver.add_ext(ast::Ident::with_empty_ctxt(intern(name)), Rc::new(ext));
};
register("macro_rules", IdentTT(Box::new(MacroRulesExpander), None, false));
tts: &[tokenstream::TokenTree])
-> Box<base::MacResult + 'cx> {
if !cx.ecfg.enable_log_syntax() {
- feature_gate::emit_feature_err(&cx.parse_sess.span_diagnostic,
+ feature_gate::emit_feature_err(&cx.parse_sess,
"log_syntax",
sp,
feature_gate::GateIssue::Language,
tt: &[TokenTree])
-> Box<base::MacResult + 'static> {
if !cx.ecfg.enable_trace_macros() {
- feature_gate::emit_feature_err(&cx.parse_sess.span_diagnostic,
+ feature_gate::emit_feature_err(&cx.parse_sess,
"trace_macros",
sp,
feature_gate::GateIssue::Language,
// According to /etc/terminfo/README, after looking at
// ~/.terminfo, ncurses will search /etc/terminfo, then
// /lib/terminfo, and eventually /usr/share/terminfo.
+ // On Haiku the database can be found at /boot/system/data/terminfo
Err(..) => {
dirs_to_search.push(PathBuf::from("/etc/terminfo"));
dirs_to_search.push(PathBuf::from("/lib/terminfo"));
dirs_to_search.push(PathBuf::from("/usr/share/terminfo"));
+ dirs_to_search.push(PathBuf::from("/boot/system/data/terminfo"));
}
}
}
pub color: ColorConfig,
pub quiet: bool,
pub test_threads: Option<usize>,
+ pub skip: Vec<String>,
}
impl TestOpts {
color: AutoColor,
quiet: false,
test_threads: None,
+ skip: vec![],
}
}
}
task, allow printing directly"),
getopts::optopt("", "test-threads", "Number of threads used for running tests \
in parallel", "n_threads"),
+ getopts::optmulti("", "skip", "Skip tests whose names contain FILTER (this flag can \
+ be used multiple times)","FILTER"),
getopts::optflag("q", "quiet", "Display one character per test instead of one line"),
getopts::optopt("", "color", "Configure coloring of output:
auto = colorize if stdout is a tty and tests are run on serially (default);
color: color,
quiet: quiet,
test_threads: test_threads,
+ skip: matches.opt_strs("skip"),
};
Some(Ok(test_opts))
}
cpus as usize
}
+
+ #[cfg(target_os = "haiku")]
+ fn num_cpus() -> usize {
+ // FIXME: implement
+ 1
+ }
}
pub fn filter_tests(opts: &TestOpts, tests: Vec<TestDescAndFn>) -> Vec<TestDescAndFn> {
}
};
+ // Skip tests that match any of the skip filters
+ filtered = filtered.into_iter()
+ .filter(|t| !opts.skip.iter().any(|sf| t.desc.name.as_slice().contains(&sf[..])))
+ .collect();
+
// Maybe pull out the ignored test and unignore them
filtered = if !opts.run_ignored {
filtered
}
}
- thread::spawn(move || {
- let data = Arc::new(Mutex::new(Vec::new()));
- let data2 = data.clone();
- let cfg = thread::Builder::new().name(match desc.name {
- DynTestName(ref name) => name.clone(),
- StaticTestName(name) => name.to_owned(),
+ // If the platform is single-threaded we're just going to run
+ // the test synchronously, regardless of the concurrency
+ // level.
+ let supports_threads = !cfg!(target_os = "emscripten");
+
+ // Buffer for capturing standard I/O
+ let data = Arc::new(Mutex::new(Vec::new()));
+ let data2 = data.clone();
+
+ if supports_threads {
+ thread::spawn(move || {
+ let cfg = thread::Builder::new().name(match desc.name {
+ DynTestName(ref name) => name.clone(),
+ StaticTestName(name) => name.to_owned(),
+ });
+
+ let result_guard = cfg.spawn(move || {
+ if !nocapture {
+ io::set_print(Some(box Sink(data2.clone())));
+ io::set_panic(Some(box Sink(data2)));
+ }
+ testfn()
+ })
+ .unwrap();
+ let test_result = calc_result(&desc, result_guard.join());
+ let stdout = data.lock().unwrap().to_vec();
+ monitor_ch.send((desc.clone(), test_result, stdout)).unwrap();
});
+ } else {
+ let oldio = if !nocapture {
+ Some((
+ io::set_print(Some(box Sink(data2.clone()))),
+ io::set_panic(Some(box Sink(data2)))
+ ))
+ } else {
+ None
+ };
+
+ use std::panic::{catch_unwind, AssertUnwindSafe};
+
+ let result = catch_unwind(AssertUnwindSafe(|| {
+ testfn()
+ }));
- let result_guard = cfg.spawn(move || {
- if !nocapture {
- io::set_print(box Sink(data2.clone()));
- io::set_panic(box Sink(data2));
- }
- testfn()
- })
- .unwrap();
- let test_result = calc_result(&desc, result_guard.join());
+ if let Some((printio, panicio)) = oldio {
+ io::set_print(printio);
+ io::set_panic(panicio);
+ };
+
+ let test_result = calc_result(&desc, result);
let stdout = data.lock().unwrap().to_vec();
monitor_ch.send((desc.clone(), test_result, stdout)).unwrap();
- });
+ }
}
match testfn {
///
/// This function is a no-op, and does not even read from `dummy`.
#[cfg(not(any(all(target_os = "nacl", target_arch = "le32"),
- target_arch = "asmjs")))]
+ target_arch = "asmjs", target_arch = "wasm32")))]
pub fn black_box<T>(dummy: T) -> T {
// we need to "use" the argument in some way LLVM can't
// introspect.
dummy
}
#[cfg(any(all(target_os = "nacl", target_arch = "le32"),
- target_arch = "asmjs"))]
+ target_arch = "asmjs", target_arch = "wasm32"))]
#[inline(never)]
pub fn black_box<T>(dummy: T) -> T {
dummy
#[cfg(target_arch = "s390x")]
pub const unwinder_private_data_size: usize = 2;
-#[cfg(target_arch = "asmjs")]
+#[cfg(target_os = "emscripten")]
pub const unwinder_private_data_size: usize = 20;
#[repr(C)]
#[cfg_attr(any(all(target_os = "linux", not(target_env = "musl")),
target_os = "freebsd",
target_os = "solaris",
+ target_os = "haiku",
all(target_os = "linux",
target_env = "musl",
not(target_arch = "x86"),
-Subproject commit 7801978ec1f3637fcda1b564048ebc732bf586af
+Subproject commit 3e03f7374169cd41547d75e62ac2ab8a103a913c
Archive::Child child;
RustArchiveMember(): filename(NULL), name(NULL),
-#if LLVM_VERSION_MINOR >= 8
+#if LLVM_VERSION_GE(3, 8)
child(NULL, NULL, NULL)
#else
child(NULL, NULL)
struct RustArchiveIterator {
Archive::child_iterator cur;
Archive::child_iterator end;
-#if LLVM_VERSION_MINOR >= 9
+#if LLVM_VERSION_GE(3, 9)
Error err;
#endif
};
return nullptr;
}
-#if LLVM_VERSION_MINOR <= 8
+#if LLVM_VERSION_LE(3, 8)
ErrorOr<std::unique_ptr<Archive>> archive_or =
#else
Expected<std::unique_ptr<Archive>> archive_or =
Archive::create(buf_or.get()->getMemBufferRef());
if (!archive_or) {
-#if LLVM_VERSION_MINOR <= 8
+#if LLVM_VERSION_LE(3, 8)
LLVMRustSetLastError(archive_or.getError().message().c_str());
#else
LLVMRustSetLastError(toString(archive_or.takeError()).c_str());
LLVMRustArchiveIteratorNew(LLVMRustArchiveRef ra) {
Archive *ar = ra->getBinary();
RustArchiveIterator *rai = new RustArchiveIterator();
-#if LLVM_VERSION_MINOR <= 8
+#if LLVM_VERSION_LE(3, 8)
rai->cur = ar->child_begin();
#else
rai->cur = ar->child_begin(rai->err);
extern "C" LLVMRustArchiveChildConstRef
LLVMRustArchiveIteratorNext(LLVMRustArchiveIteratorRef rai) {
-#if LLVM_VERSION_MINOR >= 9
+#if LLVM_VERSION_GE(3, 9)
if (rai->err) {
LLVMRustSetLastError(toString(std::move(rai->err)).c_str());
return NULL;
#endif
if (rai->cur == rai->end)
return NULL;
-#if LLVM_VERSION_MINOR == 8
+#if LLVM_VERSION_EQ(3, 8)
const ErrorOr<Archive::Child>* cur = rai->cur.operator->();
if (!*cur) {
LLVMRustSetLastError(cur->getError().message().c_str());
bool WriteSymbtab,
LLVMRustArchiveKind rust_kind) {
-#if LLVM_VERSION_MINOR <= 8
+#if LLVM_VERSION_LE(3, 8)
std::vector<NewArchiveIterator> Members;
#else
std::vector<NewArchiveMember> Members;
auto Member = NewMembers[i];
assert(Member->name);
if (Member->filename) {
-#if LLVM_VERSION_MINOR >= 9
+#if LLVM_VERSION_GE(3, 9)
Expected<NewArchiveMember> MOrErr = NewArchiveMember::getFile(Member->filename, true);
if (!MOrErr) {
LLVMRustSetLastError(toString(MOrErr.takeError()).c_str());
return LLVMRustResult::Failure;
}
Members.push_back(std::move(*MOrErr));
-#elif LLVM_VERSION_MINOR == 8
+#elif LLVM_VERSION_EQ(3, 8)
Members.push_back(NewArchiveIterator(Member->filename));
#else
Members.push_back(NewArchiveIterator(Member->filename, Member->name));
#endif
} else {
-#if LLVM_VERSION_MINOR <= 8
+#if LLVM_VERSION_LE(3, 8)
Members.push_back(NewArchiveIterator(Member->child, Member->name));
#else
Expected<NewArchiveMember> MOrErr = NewArchiveMember::getOldMember(Member->child, true);
#endif
}
}
-#if LLVM_VERSION_MINOR >= 8
+#if LLVM_VERSION_GE(3, 8)
auto pair = writeArchive(Dst, Members, WriteSymbtab, Kind, true, false);
#else
auto pair = writeArchive(Dst, Members, WriteSymbtab, Kind, true);
initializeVectorization(Registry);
initializeIPO(Registry);
initializeAnalysis(Registry);
-#if LLVM_VERSION_MINOR == 7
+#if LLVM_VERSION_EQ(3, 7)
initializeIPA(Registry);
#endif
initializeTransformUtils(Registry);
bool FunctionSections,
bool DataSections) {
-#if LLVM_VERSION_MINOR <= 8
+#if LLVM_VERSION_LE(3, 8)
Reloc::Model RM;
#else
Optional<Reloc::Model> RM;
RM = Reloc::DynamicNoPIC;
break;
default:
-#if LLVM_VERSION_MINOR <= 8
+#if LLVM_VERSION_LE(3, 8)
RM = Reloc::Default;
#endif
break;
}
TargetOptions Options;
-#if LLVM_VERSION_MINOR <= 8
+#if LLVM_VERSION_LE(3, 8)
Options.PositionIndependentExecutable = PositionIndependentExecutable;
#endif
LLVMRustRunRestrictionPass(LLVMModuleRef M, char **symbols, size_t len) {
llvm::legacy::PassManager passes;
-#if LLVM_VERSION_MINOR <= 8
+#if LLVM_VERSION_LE(3, 8)
ArrayRef<const char*> ref(symbols, len);
passes.add(llvm::createInternalizePass(ref));
#else
extern "C" void
LLVMRustSetModulePIELevel(LLVMModuleRef M) {
-#if LLVM_VERSION_MINOR >= 9
+#if LLVM_VERSION_GE(3, 9)
unwrap(M)->setPIELevel(PIELevel::Level::Large);
#endif
}
LLVMRustMetadataRef File,
LLVMRustMetadataRef ParameterTypes) {
return wrap(Builder->createSubroutineType(
-#if LLVM_VERSION_MINOR == 7
+#if LLVM_VERSION_EQ(3, 7)
unwrapDI<DIFile>(File),
#endif
DITypeRefArray(unwrap<MDTuple>(ParameterTypes))));
LLVMValueRef Fn,
LLVMRustMetadataRef TParam,
LLVMRustMetadataRef Decl) {
-#if LLVM_VERSION_MINOR >= 8
+#if LLVM_VERSION_GE(3, 8)
DITemplateParameterArray TParams =
DITemplateParameterArray(unwrap<MDTuple>(TParam));
DISubprogram *Sub = Builder->createFunction(
int64_t* AddrOps,
unsigned AddrOpsCount,
unsigned ArgNo) {
-#if LLVM_VERSION_MINOR >= 8
+#if LLVM_VERSION_GE(3, 8)
if (Tag == 0x100) { // DW_TAG_auto_variable
return wrap(Builder->createAutoVariable(
unwrapDI<DIDescriptor>(Scope), Name,
raw_string_ostream Stream(Err);
DiagnosticPrinterRawOStream DP(Stream);
-#if LLVM_VERSION_MINOR >= 8
+#if LLVM_VERSION_GE(3, 8)
if (Linker::linkModules(*Dst, std::move(Src.get()))) {
#else
if (Linker::LinkModules(Dst, Src->get(), [&](const DiagnosticInfo &DI) { DI.print(DP); })) {
return LLVMRustDiagnosticKind::OptimizationRemarkMissed;
case DK_OptimizationRemarkAnalysis:
return LLVMRustDiagnosticKind::OptimizationRemarkAnalysis;
-#if LLVM_VERSION_MINOR >= 8
+#if LLVM_VERSION_GE(3, 8)
case DK_OptimizationRemarkAnalysisFPCommute:
return LLVMRustDiagnosticKind::OptimizationRemarkAnalysisFPCommute;
case DK_OptimizationRemarkAnalysisAliasing:
return LLVMRustDiagnosticKind::OptimizationRemarkAnalysisAliasing;
#endif
default:
-#if LLVM_VERSION_MINOR >= 9
+#if LLVM_VERSION_GE(3, 9)
return (kind >= DK_FirstRemark && kind <= DK_LastRemark) ?
LLVMRustDiagnosticKind::OptimizationRemarkOther :
LLVMRustDiagnosticKind::Other;
return LLVMVectorTypeKind;
case Type::X86_MMXTyID:
return LLVMX86_MMXTypeKind;
-#if LLVM_VERSION_MINOR >= 8
+#if LLVM_VERSION_GE(3, 8)
case Type::TokenTyID:
return LLVMTokenTypeKind;
#endif
unsigned ArgCnt,
LLVMValueRef *LLArgs,
const char *Name) {
-#if LLVM_VERSION_MINOR >= 8
+#if LLVM_VERSION_GE(3, 8)
Value **Args = unwrap(LLArgs);
if (ParentPad == NULL) {
Type *Ty = Type::getTokenTy(unwrap(Builder)->getContext());
LLVMRustBuildCleanupRet(LLVMBuilderRef Builder,
LLVMValueRef CleanupPad,
LLVMBasicBlockRef UnwindBB) {
-#if LLVM_VERSION_MINOR >= 8
+#if LLVM_VERSION_GE(3, 8)
CleanupPadInst *Inst = cast<CleanupPadInst>(unwrap(CleanupPad));
return wrap(unwrap(Builder)->CreateCleanupRet(Inst, unwrap(UnwindBB)));
#else
unsigned ArgCnt,
LLVMValueRef *LLArgs,
const char *Name) {
-#if LLVM_VERSION_MINOR >= 8
+#if LLVM_VERSION_GE(3, 8)
Value **Args = unwrap(LLArgs);
return wrap(unwrap(Builder)->CreateCatchPad(unwrap(ParentPad),
ArrayRef<Value*>(Args, ArgCnt),
LLVMRustBuildCatchRet(LLVMBuilderRef Builder,
LLVMValueRef Pad,
LLVMBasicBlockRef BB) {
-#if LLVM_VERSION_MINOR >= 8
+#if LLVM_VERSION_GE(3, 8)
return wrap(unwrap(Builder)->CreateCatchRet(cast<CatchPadInst>(unwrap(Pad)),
unwrap(BB)));
#else
LLVMBasicBlockRef BB,
unsigned NumHandlers,
const char *Name) {
-#if LLVM_VERSION_MINOR >= 8
+#if LLVM_VERSION_GE(3, 8)
if (ParentPad == NULL) {
Type *Ty = Type::getTokenTy(unwrap(Builder)->getContext());
ParentPad = wrap(Constant::getNullValue(Ty));
extern "C" void
LLVMRustAddHandler(LLVMValueRef CatchSwitchRef,
LLVMBasicBlockRef Handler) {
-#if LLVM_VERSION_MINOR >= 8
+#if LLVM_VERSION_GE(3, 8)
Value *CatchSwitch = unwrap(CatchSwitchRef);
cast<CatchSwitchInst>(CatchSwitch)->addHandler(unwrap(Handler));
#endif
extern "C" void
LLVMRustSetPersonalityFn(LLVMBuilderRef B,
LLVMValueRef Personality) {
-#if LLVM_VERSION_MINOR >= 8
+#if LLVM_VERSION_GE(3, 8)
unwrap(B)->GetInsertBlock()
->getParent()
->setPersonalityFn(cast<Function>(unwrap(Personality)));
#endif
}
-#if LLVM_VERSION_MINOR >= 8
+#if LLVM_VERSION_GE(3, 8)
extern "C" OperandBundleDef*
LLVMRustBuildOperandBundleDef(const char *Name,
LLVMValueRef *Inputs,
# If this file is modified, then llvm will be forcibly cleaned and then rebuilt.
# The actual contents of this file do not matter, but to trigger a change on the
# build bots then the contents should be changed so git updates the mtime.
-2016-09-17
+2016-09-25
#include "llvm-c/ExecutionEngine.h"
#include "llvm-c/Object.h"
-#if LLVM_VERSION_MINOR >= 7
+#define LLVM_VERSION_GE(major, minor) \
+ (LLVM_VERSION_MAJOR > (major) || LLVM_VERSION_MAJOR == (major) && LLVM_VERSION_MINOR >= (minor))
+
+#define LLVM_VERSION_EQ(major, minor) \
+ (LLVM_VERSION_MAJOR == (major) && LLVM_VERSION_MINOR == (minor))
+
+#define LLVM_VERSION_LE(major, minor) \
+ (LLVM_VERSION_MAJOR < (major) || LLVM_VERSION_MAJOR == (major) && LLVM_VERSION_MINOR <= (minor))
+
+#if LLVM_VERSION_GE(3, 7)
#include "llvm/IR/LegacyPassManager.h"
#else
#include "llvm/PassManager.h"
# tarball for a stable release you'll likely see `1.x.0-$date` where `1.x.0` was
# released on `$date`
-rustc: beta-2016-08-17
-rustc_key: 195e6261
-cargo: nightly-2016-08-21
+rustc: beta-2016-09-28
+rustc_key: 62b3e239
+cargo: nightly-2016-09-26
}
-//~ TRANS_ITEM fn overloaded_operators::{{impl}}[2]::eq[0]
-//~ TRANS_ITEM fn overloaded_operators::{{impl}}[2]::ne[0]
+//~ TRANS_ITEM fn overloaded_operators::{{impl}}[4]::eq[0]
+//~ TRANS_ITEM fn overloaded_operators::{{impl}}[4]::ne[0]
#[derive(PartialEq)]
pub struct Equatable(u32);
impl Add<u32> for Equatable {
type Output = u32;
- //~ TRANS_ITEM fn overloaded_operators::{{impl}}[3]::add[0]
+ //~ TRANS_ITEM fn overloaded_operators::{{impl}}[2]::add[0]
fn add(self, rhs: u32) -> u32 {
self.0 + rhs
}
impl Deref for Equatable {
type Target = u32;
- //~ TRANS_ITEM fn overloaded_operators::{{impl}}[4]::deref[0]
+ //~ TRANS_ITEM fn overloaded_operators::{{impl}}[3]::deref[0]
fn deref(&self) -> &Self::Target {
&self.0
}
// CHECK: [[S_b:%[0-9]+]] = bitcast %"2.std::option::Option<i32>"** %b to i8*
// CHECK: call void @llvm.lifetime.start(i{{[0-9 ]+}}, i8* [[S_b]])
-// CHECK: [[S_tmp2:%[0-9]+]] = bitcast %"2.std::option::Option<i32>"* %tmp2 to i8*
-// CHECK: call void @llvm.lifetime.start(i{{[0-9 ]+}}, i8* [[S_tmp2]])
+// CHECK: [[S__5:%[0-9]+]] = bitcast %"2.std::option::Option<i32>"* %_5 to i8*
+// CHECK: call void @llvm.lifetime.start(i{{[0-9 ]+}}, i8* [[S__5]])
-// CHECK: [[E_tmp2:%[0-9]+]] = bitcast %"2.std::option::Option<i32>"* %tmp2 to i8*
-// CHECK: call void @llvm.lifetime.end(i{{[0-9 ]+}}, i8* [[E_tmp2]])
+// CHECK: [[E__5:%[0-9]+]] = bitcast %"2.std::option::Option<i32>"* %_5 to i8*
+// CHECK: call void @llvm.lifetime.end(i{{[0-9 ]+}}, i8* [[E__5]])
// CHECK: [[E_b:%[0-9]+]] = bitcast %"2.std::option::Option<i32>"** %b to i8*
// CHECK: call void @llvm.lifetime.end(i{{[0-9 ]+}}, i8* [[E_b]])
#![no_std]
-extern crate core;
extern crate rand;
extern crate serialize as rustc_serialize;
+++ /dev/null
-// Copyright 2016 The Rust Project Developers. See the COPYRIGHT
-// file at the top-level directory of this distribution and at
-// http://rust-lang.org/COPYRIGHT.
-//
-// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
-// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
-// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
-// option. This file may not be copied, modified, or distributed
-// except according to those terms.
-
-// aux-build:append-impl.rs
-
-#![feature(rustc_macro)]
-#![allow(warnings)]
-
-#[macro_use]
-extern crate append_impl;
-
-trait Append {
- fn foo(&self);
-}
-
-#[derive(PartialEq,
- Append,
- Eq)]
-struct A {
-//~^ ERROR: the semantics of constant patterns is not yet settled
- inner: u32,
-}
-
-fn main() {
- A { inner: 3 }.foo();
-}
+++ /dev/null
-// Copyright 2016 The Rust Project Developers. See the COPYRIGHT
-// file at the top-level directory of this distribution and at
-// http://rust-lang.org/COPYRIGHT.
-//
-// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
-// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
-// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
-// option. This file may not be copied, modified, or distributed
-// except according to those terms.
-
-// force-host
-// no-prefer-dynamic
-
-#![feature(rustc_macro)]
-#![feature(rustc_macro_lib)]
-#![crate_type = "rustc-macro"]
-
-extern crate rustc_macro;
-
-use rustc_macro::TokenStream;
-
-#[rustc_macro_derive(Append)]
-pub fn derive_a(input: TokenStream) -> TokenStream {
- let mut input = input.to_string();
- input.push_str("
- impl Append for A {
- fn foo(&self) {}
- }
- ");
- input.parse().unwrap()
-}
fn main() {
let x = Foo { a:1, b:2 };
- let Foo { a: x, a: y, b: 0 } = x; //~ ERROR E0025
+ let Foo { a: x, a: y, b: 0 } = x;
+ //~^ ERROR field `a` bound multiple times in the pattern
+ //~| NOTE multiple uses of `a` in pattern
+ //~| NOTE first use of `a`
}
fn main() {
let trait_obj: &SomeTrait = SomeTrait;
//~^ ERROR E0425
+ //~| NOTE unresolved name
//~| ERROR E0038
//~| method `foo` has no receiver
//~| NOTE the trait `SomeTrait` cannot be made into an object
fn main() {
let x = Test;
x.method::<i32>(); //~ ERROR E0035
+ //~| NOTE called with unneeded type parameters
}
let x = Test;
let v = &[0];
x.method::<i32, i32>(v); //~ ERROR E0036
+ //~| NOTE Passed 2 type arguments, expected 1
}
// except according to those terms.
trait Foo {
- fn foo(&self, x: u8) -> bool;
+ fn foo(&self, x: u8) -> bool; //~ NOTE trait requires 2 parameters
+ fn bar(&self, x: u8, y: u8, z: u8); //~ NOTE trait requires 4 parameters
+ fn less(&self); //~ NOTE trait requires 1 parameter
}
struct Bar;
impl Foo for Bar {
fn foo(&self) -> bool { true } //~ ERROR E0050
+ //~| NOTE expected 2 parameters, found 1
+ fn bar(&self) { } //~ ERROR E0050
+ //~| NOTE expected 4 parameters, found 1
+ fn less(&self, x: u8, y: u8, z: u8) { } //~ ERROR E0050
+ //~| NOTE expected 1 parameter, found 4
}
fn main() {
}
type Foo = Trait<F=i32>; //~ ERROR E0220
- //~^ ERROR E0191
-
+ //~| NOTE associated type `F` not found
+ //~| ERROR E0191
+ //~| NOTE missing associated type `Bar` value
fn main() {
}
struct Bar(u32);
pub fn bar() -> Bar { //~ ERROR E0446
+ //~| NOTE can't leak private type
Bar(0)
}
}
}
pub impl Bar {} //~ ERROR E0449
+ //~| NOTE `pub` not needed here
+ //~| NOTE place qualifiers on individual impl items instead
pub impl Foo for Bar { //~ ERROR E0449
+ //~| NOTE `pub` not needed here
pub fn foo() {} //~ ERROR E0449
+ //~| NOTE `pub` not needed here
}
fn main() {
fn main() {
unsafe { takes_u8(::std::mem::transmute(0u16)); } //~ ERROR E0512
+ //~| transmuting between 16 bits and 8 bits
}
--- /dev/null
+// Copyright 2016 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+use std::mem;
+
+fn main() {
+ unsafe {
+ let size = mem::size_of::<u32>();
+ mem::transmute_copy::<u32, [u8; size]>(&8_8); //~ ERROR E0513
+ //~| NOTE no type for variable
+ }
+}
// system allocator. Do this by linking in jemalloc and making sure that we get
// an error.
+// ignore-emscripten FIXME: What "other allocator" should we use for emcc?
+
#![feature(alloc_jemalloc)]
extern crate allocator_dylib;
// Ensure that rust dynamic libraries use jemalloc as their allocator, verifying
// by linking in the system allocator here and ensuring that we get a complaint.
+// ignore-emscripten FIXME: What "other allocator" is correct for emscripten?
+
#![feature(alloc_system)]
extern crate allocator_dylib2;
--- /dev/null
+// Copyright 2016 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+// This test ensures that attributes on formals in generic parameter
+// lists are included when we are checking for unstable attributes.
+//
+// Note that feature(generic_param_attrs) *is* enabled here. We are
+// checking feature-gating of the attributes themselves, not the
+// capability to parse such attributes in that context.
+
+#![feature(generic_param_attrs)]
+#![allow(dead_code)]
+
+struct StLt<#[lt_struct] 'a>(&'a u32);
+//~^ ERROR The attribute `lt_struct` is currently unknown to the compiler
+struct StTy<#[ty_struct] I>(I);
+//~^ ERROR The attribute `ty_struct` is currently unknown to the compiler
+
+enum EnLt<#[lt_enum] 'b> { A(&'b u32), B }
+//~^ ERROR The attribute `lt_enum` is currently unknown to the compiler
+enum EnTy<#[ty_enum] J> { A(J), B }
+//~^ ERROR The attribute `ty_enum` is currently unknown to the compiler
+
+trait TrLt<#[lt_trait] 'c> { fn foo(&self, _: &'c [u32]) -> &'c u32; }
+//~^ ERROR The attribute `lt_trait` is currently unknown to the compiler
+trait TrTy<#[ty_trait] K> { fn foo(&self, _: K); }
+//~^ ERROR The attribute `ty_trait` is currently unknown to the compiler
+
+type TyLt<#[lt_type] 'd> = &'d u32;
+//~^ ERROR The attribute `lt_type` is currently unknown to the compiler
+type TyTy<#[ty_type] L> = (L, );
+//~^ ERROR The attribute `ty_type` is currently unknown to the compiler
+
+impl<#[lt_inherent] 'e> StLt<'e> { }
+//~^ ERROR The attribute `lt_inherent` is currently unknown to the compiler
+impl<#[ty_inherent] M> StTy<M> { }
+//~^ ERROR The attribute `ty_inherent` is currently unknown to the compiler
+
+impl<#[lt_impl_for] 'f> TrLt<'f> for StLt<'f> {
+ //~^ ERROR The attribute `lt_impl_for` is currently unknown to the compiler
+ fn foo(&self, _: &'f [u32]) -> &'f u32 { loop { } }
+}
+impl<#[ty_impl_for] N> TrTy<N> for StTy<N> {
+ //~^ ERROR The attribute `ty_impl_for` is currently unknown to the compiler
+ fn foo(&self, _: N) { }
+}
+
+fn f_lt<#[lt_fn] 'g>(_: &'g [u32]) -> &'g u32 { loop { } }
+//~^ ERROR The attribute `lt_fn` is currently unknown to the compiler
+fn f_ty<#[ty_fn] O>(_: O) { }
+//~^ ERROR The attribute `ty_fn` is currently unknown to the compiler
+
+impl<I> StTy<I> {
+ fn m_lt<#[lt_meth] 'h>(_: &'h [u32]) -> &'h u32 { loop { } }
+ //~^ ERROR The attribute `lt_meth` is currently unknown to the compiler
+ fn m_ty<#[ty_meth] P>(_: P) { }
+ //~^ ERROR The attribute `ty_meth` is currently unknown to the compiler
+}
+
+fn hof_lt<Q>(_: Q)
+ where Q: for <#[lt_hof] 'i> Fn(&'i [u32]) -> &'i u32
+ //~^ ERROR The attribute `lt_hof` is currently unknown to the compiler
+{
+}
+
+fn main() {
+
+}
--- /dev/null
+// Copyright 2016 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+// This test ensures that attributes on formals in generic parameter
+// lists are rejected if feature(generic_param_attrs) is not enabled.
+//
+// (We are prefixing all tested features with `rustc_`, to ensure that
+// the attributes themselves won't be rejected by the compiler when
+// using `rustc_attrs` feature. There is a separate compile-fail/ test
+// ensuring that the attribute feature-gating works in this context.)
+
+#![feature(rustc_attrs)]
+#![allow(dead_code)]
+
+struct StLt<#[rustc_lt_struct] 'a>(&'a u32);
+//~^ ERROR attributes on lifetime bindings are experimental (see issue #34761)
+struct StTy<#[rustc_ty_struct] I>(I);
+//~^ ERROR attributes on type parameter bindings are experimental (see issue #34761)
+
+enum EnLt<#[rustc_lt_enum] 'b> { A(&'b u32), B }
+//~^ ERROR attributes on lifetime bindings are experimental (see issue #34761)
+enum EnTy<#[rustc_ty_enum] J> { A(J), B }
+//~^ ERROR attributes on type parameter bindings are experimental (see issue #34761)
+
+trait TrLt<#[rustc_lt_trait] 'c> { fn foo(&self, _: &'c [u32]) -> &'c u32; }
+//~^ ERROR attributes on lifetime bindings are experimental (see issue #34761)
+trait TrTy<#[rustc_ty_trait] K> { fn foo(&self, _: K); }
+//~^ ERROR attributes on type parameter bindings are experimental (see issue #34761)
+
+type TyLt<#[rustc_lt_type] 'd> = &'d u32;
+//~^ ERROR attributes on lifetime bindings are experimental (see issue #34761)
+type TyTy<#[rustc_ty_type] L> = (L, );
+//~^ ERROR attributes on type parameter bindings are experimental (see issue #34761)
+
+impl<#[rustc_lt_inherent] 'e> StLt<'e> { }
+//~^ ERROR attributes on lifetime bindings are experimental (see issue #34761)
+impl<#[rustc_ty_inherent] M> StTy<M> { }
+//~^ ERROR attributes on type parameter bindings are experimental (see issue #34761)
+
+impl<#[rustc_lt_impl_for] 'f> TrLt<'f> for StLt<'f> {
+ //~^ ERROR attributes on lifetime bindings are experimental (see issue #34761)
+ fn foo(&self, _: &'f [u32]) -> &'f u32 { loop { } }
+}
+impl<#[rustc_ty_impl_for] N> TrTy<N> for StTy<N> {
+ //~^ ERROR attributes on type parameter bindings are experimental (see issue #34761)
+ fn foo(&self, _: N) { }
+}
+
+fn f_lt<#[rustc_lt_fn] 'g>(_: &'g [u32]) -> &'g u32 { loop { } }
+//~^ ERROR attributes on lifetime bindings are experimental (see issue #34761)
+fn f_ty<#[rustc_ty_fn] O>(_: O) { }
+//~^ ERROR attributes on type parameter bindings are experimental (see issue #34761)
+
+impl<I> StTy<I> {
+ fn m_lt<#[rustc_lt_meth] 'h>(_: &'h [u32]) -> &'h u32 { loop { } }
+ //~^ ERROR attributes on lifetime bindings are experimental (see issue #34761)
+ fn m_ty<#[rustc_ty_meth] P>(_: P) { }
+ //~^ ERROR attributes on type parameter bindings are experimental (see issue #34761)
+}
+
+fn hof_lt<Q>(_: Q)
+ where Q: for <#[rustc_lt_hof] 'i> Fn(&'i [u32]) -> &'i u32
+ //~^ ERROR attributes on lifetime bindings are experimental (see issue #34761)
+{
+}
+
+fn main() {
+
+}
--- /dev/null
+// Copyright 2016 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+// This test checks variations on `<#[attr] 'a, #[oops]>`, where
+// `#[oops]` is left dangling (that is, it is unattached, with no
+// formal binding following it).
+
+#![feature(generic_param_attrs, rustc_attrs)]
+#![allow(dead_code)]
+
+struct RefIntPair<'a, 'b>(&'a u32, &'b u32);
+
+impl<#[rustc_1] 'a, 'b, #[oops]> RefIntPair<'a, 'b> {
+ //~^ ERROR trailing attribute after lifetime parameters
+}
+
+fn main() {
+
+}
--- /dev/null
+// Copyright 2016 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+// This test checks variations on `<#[attr] 'a, #[oops]>`, where
+// `#[oops]` is left dangling (that is, it is unattached, with no
+// formal binding following it).
+
+#![feature(generic_param_attrs, rustc_attrs)]
+#![allow(dead_code)]
+
+struct RefAny<'a, T>(&'a T);
+
+impl<#[rustc_1] 'a, #[rustc_2] T, #[oops]> RefAny<'a, T> {
+ //~^ ERROR expected identifier, found `>`
+}
+
+fn main() {
+
+}
--- /dev/null
+// Copyright 2016 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+// This test checks variations on `<#[attr] 'a, #[oops]>`, where
+// `#[oops]` is left dangling (that is, it is unattached, with no
+// formal binding following it).
+
+struct RefIntPair<'a, 'b>(&'a u32, &'b u32);
+
+fn hof_lt<Q>(_: Q)
+ where Q: for <#[rustc_1] 'a, 'b, #[oops]> Fn(RefIntPair<'a,'b>) -> &'b u32
+ //~^ ERROR trailing attribute after lifetime parameters
+{
+
+}
+
+fn main() {
+
+}
// option. This file may not be copied, modified, or distributed
// except according to those terms.
-// error-pattern: unresolved name `m1::arguments`. Did you mean `arguments`?
+// error-pattern: unresolved name `m1::arguments`
mod m1 {}
// option. This file may not be copied, modified, or distributed
// except according to those terms.
-// error-pattern: unresolved name `m1::arguments`. Did you mean `arguments`?
+// error-pattern: unresolved name `m1::arguments`
mod m1 {
pub mod arguments {}
enum A {
Ok = i8::MAX - 1,
Ok2,
- OhNo, //~ ERROR enum discriminant overflowed on value after 127i8; set explicitly via OhNo = -128i8 if that is desired outcome
+ OhNo, //~ ERROR enum discriminant overflowed [E0370]
+ //~| NOTE overflowed on value after 127i8
+ //~| NOTE explicitly set `OhNo = -128i8` if that is desired outcome
}
}
enum A {
Ok = u8::MAX - 1,
Ok2,
- OhNo, //~ ERROR enum discriminant overflowed on value after 255u8; set explicitly via OhNo = 0u8 if that is desired outcome
+ OhNo, //~ ERROR enum discriminant overflowed [E0370]
+ //~| NOTE overflowed on value after 255u8
+ //~| NOTE explicitly set `OhNo = 0u8` if that is desired outcome
}
}
enum A {
Ok = i16::MAX - 1,
Ok2,
- OhNo, //~ ERROR enum discriminant overflowed
+ OhNo, //~ ERROR enum discriminant overflowed [E0370]
+ //~| NOTE overflowed on value after 32767i16
+ //~| NOTE explicitly set `OhNo = -32768i16` if that is desired outcome
}
}
enum A {
Ok = u16::MAX - 1,
Ok2,
- OhNo, //~ ERROR enum discriminant overflowed
+ OhNo, //~ ERROR enum discriminant overflowed [E0370]
+ //~| NOTE overflowed on value after 65535u16
+ //~| NOTE explicitly set `OhNo = 0u16` if that is desired outcome
}
}
enum A {
Ok = i32::MAX - 1,
Ok2,
- OhNo, //~ ERROR enum discriminant overflowed
+ OhNo, //~ ERROR enum discriminant overflowed [E0370]
+ //~| NOTE overflowed on value after 2147483647i32
+ //~| NOTE explicitly set `OhNo = -2147483648i32` if that is desired outcome
}
}
enum A {
Ok = u32::MAX - 1,
Ok2,
- OhNo, //~ ERROR enum discriminant overflowed
+ OhNo, //~ ERROR enum discriminant overflowed [E0370]
+ //~| NOTE overflowed on value after 4294967295u32
+ //~| NOTE explicitly set `OhNo = 0u32` if that is desired outcome
}
}
enum A {
Ok = i64::MAX - 1,
Ok2,
- OhNo, //~ ERROR enum discriminant overflowed
+ OhNo, //~ ERROR enum discriminant overflowed [E0370]
+ //~| NOTE overflowed on value after 9223372036854775807i64
+ //~| NOTE explicitly set `OhNo = -9223372036854775808i64` if that is desired outcome
}
}
enum A {
Ok = u64::MAX - 1,
Ok2,
- OhNo, //~ ERROR enum discriminant overflowed
+ OhNo, //~ ERROR enum discriminant overflowed [E0370]
+ //~| NOTE overflowed on value after 18446744073709551615u64
+ //~| NOTE explicitly set `OhNo = 0u64` if that is desired outcome
}
}
enum A {
Ok = i8::MAX - 1,
Ok2,
- OhNo, //~ ERROR enum discriminant overflowed on value after 127i8; set explicitly via OhNo = -128i8 if that is desired outcome
+ OhNo, //~ ERROR enum discriminant overflowed [E0370]
+ //~| NOTE overflowed on value after 127i8
+ //~| NOTE explicitly set `OhNo = -128i8` if that is desired outcome
}
let x = A::Ok;
enum A {
Ok = u8::MAX - 1,
Ok2,
- OhNo, //~ ERROR enum discriminant overflowed on value after 255u8; set explicitly via OhNo = 0u8 if that is desired outcome
+ OhNo, //~ ERROR enum discriminant overflowed [E0370]
+ //~| NOTE overflowed on value after 255u8
+ //~| NOTE explicitly set `OhNo = 0u8` if that is desired outcome
}
let x = A::Ok;
enum A {
Ok = i16::MAX - 1,
Ok2,
- OhNo, //~ ERROR enum discriminant overflowed
+ OhNo, //~ ERROR enum discriminant overflowed [E0370]
+ //~| NOTE overflowed on value after 32767i16
+ //~| NOTE explicitly set `OhNo = -32768i16` if that is desired outcome
}
let x = A::Ok;
enum A {
Ok = u16::MAX - 1,
Ok2,
- OhNo, //~ ERROR enum discriminant overflowed
+ OhNo, //~ ERROR enum discriminant overflowed [E0370]
+ //~| overflowed on value after 65535u16
+ //~| NOTE explicitly set `OhNo = 0u16` if that is desired outcome
}
let x = A::Ok;
enum A {
Ok = i32::MAX - 1,
Ok2,
- OhNo, //~ ERROR enum discriminant overflowed
+ OhNo, //~ ERROR enum discriminant overflowed [E0370]
+ //~| overflowed on value after 2147483647i32
+ //~| NOTE explicitly set `OhNo = -2147483648i32` if that is desired outcome
}
let x = A::Ok;
enum A {
Ok = u32::MAX - 1,
Ok2,
- OhNo, //~ ERROR enum discriminant overflowed
+ OhNo, //~ ERROR enum discriminant overflowed [E0370]
+ //~| overflowed on value after 4294967295u32
+ //~| NOTE explicitly set `OhNo = 0u32` if that is desired outcome
}
let x = A::Ok;
enum A {
Ok = i64::MAX - 1,
Ok2,
- OhNo, //~ ERROR enum discriminant overflowed
+ OhNo, //~ ERROR enum discriminant overflowed [E0370]
+ //~| overflowed on value after 9223372036854775807i64
+ //~| NOTE explicitly set `OhNo = -9223372036854775808i64` if that is desired outcome
}
let x = A::Ok;
enum A {
Ok = u64::MAX - 1,
Ok2,
- OhNo, //~ ERROR enum discriminant overflowed
+ OhNo, //~ ERROR enum discriminant overflowed [E0370]
+ //~| overflowed on value after 18446744073709551615u64
+ //~| NOTE explicitly set `OhNo = 0u64` if that is desired outcome
}
let x = A::Ok;
// option. This file may not be copied, modified, or distributed
// except according to those terms.
-extern crate bäz; //~ ERROR non-ascii idents
+extern crate core as bäz; //~ ERROR non-ascii idents
use föö::bar; //~ ERROR non-ascii idents
impl Foo for *const BarTy {
fn bar(&self) {
baz();
- //~^ ERROR: unresolved name `baz`. Did you mean to call `self.baz`?
+ //~^ ERROR: unresolved name `baz`
+ //~| NOTE did you mean to call `self.baz`?
a;
//~^ ERROR: unresolved name `a`
+ //~| NOTE unresolved name
}
}
impl<'a> Foo for &'a BarTy {
fn bar(&self) {
baz();
- //~^ ERROR: unresolved name `baz`. Did you mean to call `self.baz`?
+ //~^ ERROR: unresolved name `baz`
+ //~| NOTE did you mean to call `self.baz`?
x;
- //~^ ERROR: unresolved name `x`. Did you mean `self.x`?
+ //~^ ERROR: unresolved name `x`
+ //~| NOTE did you mean `self.x`?
y;
- //~^ ERROR: unresolved name `y`. Did you mean `self.y`?
+ //~^ ERROR: unresolved name `y`
+ //~| NOTE did you mean `self.y`?
a;
//~^ ERROR: unresolved name `a`
+ //~| NOTE unresolved name
bah;
- //~^ ERROR: unresolved name `bah`. Did you mean to call `Foo::bah`?
+ //~^ ERROR: unresolved name `bah`
+ //~| NOTE did you mean to call `Foo::bah`?
b;
//~^ ERROR: unresolved name `b`
+ //~| NOTE unresolved name
}
}
impl<'a> Foo for &'a mut BarTy {
fn bar(&self) {
baz();
- //~^ ERROR: unresolved name `baz`. Did you mean to call `self.baz`?
+ //~^ ERROR: unresolved name `baz`
+ //~| NOTE did you mean to call `self.baz`?
x;
- //~^ ERROR: unresolved name `x`. Did you mean `self.x`?
+ //~^ ERROR: unresolved name `x`
+ //~| NOTE did you mean `self.x`?
y;
- //~^ ERROR: unresolved name `y`. Did you mean `self.y`?
+ //~^ ERROR: unresolved name `y`
+ //~| NOTE did you mean `self.y`?
a;
//~^ ERROR: unresolved name `a`
+ //~| NOTE unresolved name
bah;
- //~^ ERROR: unresolved name `bah`. Did you mean to call `Foo::bah`?
+ //~^ ERROR: unresolved name `bah`
+ //~| NOTE did you mean to call `Foo::bah`?
b;
//~^ ERROR: unresolved name `b`
+ //~| NOTE unresolved name
}
}
impl Foo for Box<BarTy> {
fn bar(&self) {
baz();
- //~^ ERROR: unresolved name `baz`. Did you mean to call `self.baz`?
+ //~^ ERROR: unresolved name `baz`
+ //~| NOTE did you mean to call `self.baz`?
bah;
- //~^ ERROR: unresolved name `bah`. Did you mean to call `Foo::bah`?
+ //~^ ERROR: unresolved name `bah`
+ //~| NOTE did you mean to call `Foo::bah`?
}
}
impl Foo for *const isize {
fn bar(&self) {
baz();
- //~^ ERROR: unresolved name `baz`. Did you mean to call `self.baz`?
+ //~^ ERROR: unresolved name `baz`
+ //~| NOTE did you mean to call `self.baz`?
bah;
- //~^ ERROR: unresolved name `bah`. Did you mean to call `Foo::bah`?
+ //~^ ERROR: unresolved name `bah`
+ //~| NOTE did you mean to call `Foo::bah`?
}
}
impl<'a> Foo for &'a isize {
fn bar(&self) {
baz();
- //~^ ERROR: unresolved name `baz`. Did you mean to call `self.baz`?
+ //~^ ERROR: unresolved name `baz`
+ //~| NOTE did you mean to call `self.baz`?
bah;
- //~^ ERROR: unresolved name `bah`. Did you mean to call `Foo::bah`?
+ //~^ ERROR: unresolved name `bah`
+ //~| NOTE did you mean to call `Foo::bah`?
}
}
impl<'a> Foo for &'a mut isize {
fn bar(&self) {
baz();
- //~^ ERROR: unresolved name `baz`. Did you mean to call `self.baz`?
+ //~^ ERROR: unresolved name `baz`
+ //~| NOTE did you mean to call `self.baz`?
bah;
- //~^ ERROR: unresolved name `bah`. Did you mean to call `Foo::bah`?
+ //~^ ERROR: unresolved name `bah`
+ //~| NOTE did you mean to call `Foo::bah`?
}
}
impl Foo for Box<isize> {
fn bar(&self) {
baz();
- //~^ ERROR: unresolved name `baz`. Did you mean to call `self.baz`?
+ //~^ ERROR: unresolved name `baz`
+ //~| NOTE did you mean to call `self.baz`?
bah;
- //~^ ERROR: unresolved name `bah`. Did you mean to call `Foo::bah`?
+ //~^ ERROR: unresolved name `bah`
+ //~| NOTE did you mean to call `Foo::bah`?
}
}
fn main() {
let Foo {
- a: _, //~ NOTE field `a` previously bound here
- a: _ //~ ERROR field `a` bound multiple times in the pattern
+ a: _, //~ NOTE first use of `a`
+ a: _
+ //~^ ERROR field `a` bound multiple times in the pattern
+ //~| NOTE multiple uses of `a` in pattern
} = Foo { a: 29 };
let Foo {
- a, //~ NOTE field `a` previously bound here
- a: _ //~ ERROR field `a` bound multiple times in the pattern
+ a, //~ NOTE first use of `a`
+ a: _
+ //~^ ERROR field `a` bound multiple times in the pattern
+ //~| NOTE multiple uses of `a` in pattern
} = Foo { a: 29 };
let Foo {
- a, //~ NOTE field `a` previously bound here
- //~^ NOTE field `a` previously bound here
- a: _, //~ ERROR field `a` bound multiple times in the pattern
- a: x //~ ERROR field `a` bound multiple times in the pattern
+ a,
+ //~^ NOTE first use of `a`
+ //~| NOTE first use of `a`
+ a: _,
+ //~^ ERROR field `a` bound multiple times in the pattern
+ //~| NOTE multiple uses of `a` in pattern
+ a: x
+ //~^ ERROR field `a` bound multiple times in the pattern
+ //~| NOTE multiple uses of `a` in pattern
} = Foo { a: 29 };
}
// option. This file may not be copied, modified, or distributed
// except according to those terms.
-// error-pattern: expected item, found `parse_error`
+// error-pattern: expected one of `!` or `::`, found `<eof>`
include!("auxiliary/issue-21146-inc.rs");
fn main() {}
// If this provides a suggestion, it's a bug as MaybeDog doesn't impl Groom
shave();
//~^ ERROR: unresolved name `shave`
+ //~| NOTE unresolved name
}
}
fn shave(other: usize) {
whiskers -= other;
//~^ ERROR: unresolved name `whiskers`
+ //~| NOTE unresolved name
//~| HELP this is an associated function
shave(4);
- //~^ ERROR: unresolved name `shave`. Did you mean to call `Groom::shave`?
+ //~^ ERROR: unresolved name `shave`
+ //~| NOTE did you mean to call `Groom::shave`?
purr();
//~^ ERROR: unresolved name `purr`
+ //~| NOTE unresolved name
}
}
fn purr_louder() {
static_method();
//~^ ERROR: unresolved name `static_method`
+ //~| NOTE unresolved name
purr();
//~^ ERROR: unresolved name `purr`
+ //~| NOTE unresolved name
purr();
//~^ ERROR: unresolved name `purr`
+ //~| NOTE unresolved name
purr();
//~^ ERROR: unresolved name `purr`
+ //~| NOTE unresolved name
}
}
fn purr(&self) {
grow_older();
//~^ ERROR: unresolved name `grow_older`
+ //~| NOTE unresolved name
shave();
//~^ ERROR: unresolved name `shave`
+ //~| NOTE unresolved name
}
fn burn_whiskers(&mut self) {
whiskers = 0;
- //~^ ERROR: unresolved name `whiskers`. Did you mean `self.whiskers`?
+ //~^ ERROR: unresolved name `whiskers`
+ //~| NOTE did you mean `self.whiskers`?
}
pub fn grow_older(other:usize) {
whiskers = 4;
//~^ ERROR: unresolved name `whiskers`
+ //~| NOTE unresolved name
//~| HELP this is an associated function
purr_louder();
//~^ ERROR: unresolved name `purr_louder`
+ //~| NOTE unresolved name
}
}
fn main() {
self += 1;
//~^ ERROR: unresolved name `self`
+ //~| NOTE unresolved name
//~| HELP: module `self`
// it's a bug if this suggests a missing `self` as we're not in a method
}
let _ = bar!();
}}
-macro_rules! bar { // test issue #31856
+macro_rules! m { // test issue #31856
($n:ident) => (
let a = 1;
let $n = a;
--- /dev/null
+// Copyright 2016 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+fn main() {
+ extern crate rand;
+ use rand::Rng; //~ ERROR unresolved import
+}
--- /dev/null
+// Copyright 2016 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+macro_rules! foo {
+ ( $()* ) => {};
+ //~^ ERROR repetition matches empty token tree
+ ( $()+ ) => {};
+ //~^ ERROR repetition matches empty token tree
+
+ ( $(),* ) => {}; // PASS
+ ( $(),+ ) => {}; // PASS
+
+ ( [$()*] ) => {};
+ //~^ ERROR repetition matches empty token tree
+ ( [$()+] ) => {};
+ //~^ ERROR repetition matches empty token tree
+
+ ( [$(),*] ) => {}; // PASS
+ ( [$(),+] ) => {}; // PASS
+
+ ( $($()* $(),* $(a)* $(a),* )* ) => {};
+ //~^ ERROR repetition matches empty token tree
+ ( $($()* $(),* $(a)* $(a),* )+ ) => {};
+ //~^ ERROR repetition matches empty token tree
+
+ ( $(a $(),* $(a)* $(a),* )* ) => {}; // PASS
+ ( $($(a)+ $(),* $(a)* $(a),* )+ ) => {}; // PASS
+
+ ( $(a $()+)* ) => {};
+ //~^ ERROR repetition matches empty token tree
+ ( $(a $()*)+ ) => {};
+ //~^ ERROR repetition matches empty token tree
+}
+
+
+// --- Original Issue --- //
+
+macro_rules! make_vec {
+ (a $e1:expr $($(, a $e2:expr)*)*) => ([$e1 $($(, $e2)*)*]);
+ //~^ ERROR repetition matches empty token tree
+}
+
+fn main() {
+ let _ = make_vec!(a 1, a 2, a 3);
+}
+
+
+// --- Minified Issue --- //
+
+macro_rules! m {
+ ( $()* ) => {}
+ //~^ ERROR repetition matches empty token tree
+}
+
+m!();
//~| ERROR macro expansion ignores token `typeof`
//~| ERROR macro expansion ignores token `;`
//~| ERROR macro expansion ignores token `;`
- //~| ERROR macro expansion ignores token `i`
}
-m!(); //~ NOTE the usage of `m!` is likely invalid in item context
-
fn main() {
let a: m!(); //~ NOTE the usage of `m!` is likely invalid in type context
let i = m!(); //~ NOTE the usage of `m!` is likely invalid in expression context
--- /dev/null
+// Copyright 2016 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+// aux-build:two_macros.rs
+
+macro_rules! foo { () => {} }
+macro_rules! macro_one { () => {} }
+
+macro_rules! m1 { () => {
+ macro_rules! foo { () => {} } //~ ERROR `foo` is already in scope
+ //~^ NOTE macro-expanded `macro_rules!`s and `#[macro_use]`s may not shadow existing macros
+
+ #[macro_use] //~ ERROR `macro_one` is already in scope
+ //~^ NOTE macro-expanded `macro_rules!`s and `#[macro_use]`s may not shadow existing macros
+ extern crate two_macros;
+}}
+m1!(); //~ NOTE in this expansion
+ //~| NOTE in this expansion
+ //~| NOTE in this expansion
+ //~| NOTE in this expansion
+
+fn f() { macro_one!(); }
+foo!();
+
+macro_rules! m2 { () => {
+ macro_rules! foo { () => {} }
+ #[macro_use] extern crate two_macros as __;
+
+ fn g() { macro_one!(); }
+ foo!();
+}}
+m2!();
+//^ Since `foo` and `macro_one` are not used outside this expansion, they are not shadowing errors.
+
+fn main() {}
--- /dev/null
+// Copyright 2016 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+::foo::bar!(); //~ ERROR expected macro name without module separators
+foo::bar!(); //~ ERROR expected macro name without module separators
+
+trait T {
+ foo::bar!(); //~ ERROR expected macro name without module separators
+ ::foo::bar!(); //~ ERROR expected macro name without module separators
+}
+
+struct S {
+ x: foo::bar!(), //~ ERROR expected macro name without module separators
+ y: ::foo::bar!(), //~ ERROR expected macro name without module separators
+}
+
+impl S {
+ foo::bar!(); //~ ERROR expected macro name without module separators
+ ::foo::bar!(); //~ ERROR expected macro name without module separators
+}
+
+fn main() {
+ foo::bar!(); //~ ERROR expected macro name without module separators
+ ::foo::bar!(); //~ ERROR expected macro name without module separators
+
+ let _ = foo::bar!(); //~ ERROR expected macro name without module separators
+ let _ = ::foo::bar!(); //~ ERROR expected macro name without module separators
+
+ let foo::bar!() = 0; //~ ERROR expected macro name without module separators
+ let ::foo::bar!() = 0; //~ ERROR expected macro name without module separators
+}
--- /dev/null
+// Copyright 2016 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+#![feature(platform_intrinsics)]
+extern "platform-intrinsic" {
+ fn x86_mm_movemask_ps() -> i32; //~ERROR found 0, expected 1
+}
+
+fn main() { }
// except according to those terms.
fn main() {
- assert(true); //~ERROR unresolved name `assert`. Did you mean the macro `assert!`?
+ assert(true);
+ //~^ ERROR unresolved name `assert`
+ //~| NOTE did you mean the macro `assert!`?
}
ref mut Self => (),
//~^ ERROR expected identifier, found keyword `Self`
Self!() => (),
- //~^ ERROR expected identifier, found keyword `Self`
- //~^^ ERROR macro undefined: 'Self!'
+ //~^ ERROR macro undefined: 'Self!'
Foo { x: Self } => (),
//~^ ERROR expected identifier, found keyword `Self`
Foo { Self } => (),
}
}
-use std::option::Option as Self;
-//~^ ERROR expected identifier, found keyword `Self`
+mod m1 {
+ extern crate core as Self;
+ //~^ ERROR expected identifier, found keyword `Self`
+}
-extern crate Self;
-//~^ ERROR expected identifier, found keyword `Self`
+mod m2 {
+ use std::option::Option as Self;
+ //~^ ERROR expected identifier, found keyword `Self`
+}
-trait Self {}
-//~^ ERROR expected identifier, found keyword `Self`
+mod m3 {
+ trait Self {}
+ //~^ ERROR expected identifier, found keyword `Self`
+}
fn main() {
if foo { //~ NOTE: unclosed delimiter
//~^ ERROR: unresolved name `foo`
+ //~| NOTE unresolved name
) //~ ERROR: incorrect close delimiter: `)`
}
callback: F)
-> io::Result<bool> {
if !is_directory(path.as_ref()) { //~ ERROR: unresolved name `is_directory`
+ //~| NOTE unresolved name
callback(path.as_ref(); //~ NOTE: unclosed delimiter
//~^ ERROR: expected one of
fs::create_dir_all(path.as_ref()).map(|()| true) //~ ERROR: mismatched types
//~^^^ ERROR: unresolved name `bar`
//~^^^^ ERROR: unresolved name `foo`
//~^^^^^ ERROR: expected one of `)`, `,`, `.`, `<`, `?`
+ //~| NOTE unresolved name
+ //~| NOTE unresolved name
} //~ ERROR: incorrect close delimiter: `}`
//~^ ERROR: incorrect close delimiter: `}`
//~^^ ERROR: expected expression, found `)`
+++ /dev/null
-// Copyright 2014 The Rust Project Developers. See the COPYRIGHT
-// file at the top-level directory of this distribution and at
-// http://rust-lang.org/COPYRIGHT.
-//
-// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
-// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
-// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
-// option. This file may not be copied, modified, or distributed
-// except according to those terms.
-
-fn main() {
- let foo = 1;
-
- // `foo` shouldn't be suggested, it is too dissimilar from `bar`.
- println!("Hello {}", bar);
- //~^ ERROR: unresolved name `bar`
-
- // But this is close enough.
- println!("Hello {}", fob);
- //~^ ERROR: unresolved name `fob`. Did you mean `foo`?
-}
fn f<F:Trait(isize) -> isize>(x: F) {}
//~^ ERROR E0244
//~| NOTE expected no type arguments, found 1
-//~| ERROR associated type `Output` not found
+//~| ERROR E0220
+//~| NOTE associated type `Output` not found
fn main() {}
--- /dev/null
+// Copyright 2016 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+// This test case makes sure that the compiler does not try to re-use anything
+// from the incremental compilation cache if the cache was produced by a
+// different compiler version. This is tested by artificially forcing the
+// emission of a different compiler version in the header of rpass1 artifacts,
+// and then making sure that the only object file of the test program gets
+// re-translated although the program stays unchanged.
+
+// The `l33t haxx0r` Rust compiler is known to produce incr. comp. artifacts
+// that are outrageously incompatible with just about anything, even itself:
+//[rpass1] rustc-env:RUSTC_FORCE_INCR_COMP_ARTIFACT_HEADER="l33t haxx0r rustc 2.1 LTS"
+
+// revisions:rpass1 rpass2
+
+#![feature(rustc_attrs)]
+#![rustc_partition_translated(module="cache_file_headers", cfg="rpass2")]
+
+fn main() {
+ // empty
+}
--- /dev/null
+// Copyright 2014 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+#![crate_type="rlib"]
+
+pub static A : u32 = 32;
+
--- /dev/null
+// Copyright 2014 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+#![crate_type="rlib"]
+
+pub static B: u32 = 32;
+
--- /dev/null
+// Copyright 2014 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+// aux-build:a.rs
+// aux-build:b.rs
+// revisions:rpass1 rpass2
+
+#![feature(rustc_attrs)]
+
+
+#[cfg(rpass1)]
+extern crate a;
+#[cfg(rpass1)]
+extern crate b;
+
+#[cfg(rpass2)]
+extern crate b;
+#[cfg(rpass2)]
+extern crate a;
+
+use a::A;
+use b::B;
+
+//? #[rustc_clean(label="TypeckItemBody", cfg="rpass2")]
+pub fn main() {
+ A + B;
+}
--- /dev/null
+// Copyright 2016 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+
+// This test case tests the incremental compilation hash (ICH) implementation
+// for enum definitions.
+
+// The general pattern followed here is: Change one thing between rev1 and rev2
+// and make sure that the hash has changed, then change nothing between rev2 and
+// rev3 and make sure that the hash has not changed.
+
+// We also test the ICH for enum definitions exported in metadata. Same as
+// above, we want to make sure that the change between rev1 and rev2 also
+// results in a change of the ICH for the enum's metadata, and that it stays
+// the same between rev2 and rev3.
+
+// must-compile-successfully
+// revisions: cfail1 cfail2 cfail3
+// compile-flags: -Z query-dep-graph
+
+#![allow(warnings)]
+#![feature(rustc_attrs)]
+#![crate_type="rlib"]
+
+
+
+// Change enum visibility -----------------------------------------------------
+#[cfg(cfail1)]
+enum EnumVisibility { A }
+
+#[cfg(not(cfail1))]
+#[rustc_dirty(label="Hir", cfg="cfail2")]
+#[rustc_clean(label="Hir", cfg="cfail3")]
+#[rustc_metadata_clean(cfg="cfail3")]
+pub enum EnumVisibility { A }
+
+
+
+// Change name of a c-style variant -------------------------------------------
+#[cfg(cfail1)]
+enum EnumChangeNameCStyleVariant {
+ Variant1,
+ Variant2,
+}
+
+#[cfg(not(cfail1))]
+#[rustc_dirty(label="Hir", cfg="cfail2")]
+#[rustc_clean(label="Hir", cfg="cfail3")]
+#[rustc_metadata_dirty(cfg="cfail2")]
+#[rustc_metadata_clean(cfg="cfail3")]
+enum EnumChangeNameCStyleVariant {
+ Variant1,
+ Variant2Changed,
+}
+
+
+
+// Change name of a tuple-style variant ---------------------------------------
+#[cfg(cfail1)]
+enum EnumChangeNameTupleStyleVariant {
+ Variant1,
+ Variant2(u32, f32),
+}
+
+#[cfg(not(cfail1))]
+#[rustc_dirty(label="Hir", cfg="cfail2")]
+#[rustc_clean(label="Hir", cfg="cfail3")]
+#[rustc_metadata_dirty(cfg="cfail2")]
+#[rustc_metadata_clean(cfg="cfail3")]
+enum EnumChangeNameTupleStyleVariant {
+ Variant1,
+ Variant2Changed(u32, f32),
+}
+
+
+
+// Change name of a struct-style variant --------------------------------------
+#[cfg(cfail1)]
+enum EnumChangeNameStructStyleVariant {
+ Variant1,
+ Variant2 { a: u32, b: f32 },
+}
+
+#[cfg(not(cfail1))]
+#[rustc_dirty(label="Hir", cfg="cfail2")]
+#[rustc_clean(label="Hir", cfg="cfail3")]
+#[rustc_metadata_dirty(cfg="cfail2")]
+#[rustc_metadata_clean(cfg="cfail3")]
+enum EnumChangeNameStructStyleVariant {
+ Variant1,
+ Variant2Changed { a: u32, b: f32 },
+}
+
+
+
+// Change the value of a c-style variant --------------------------------------
+#[cfg(cfail1)]
+enum EnumChangeValueCStyleVariant0 {
+ Variant1,
+ Variant2 = 11,
+}
+
+#[cfg(not(cfail1))]
+#[rustc_dirty(label="Hir", cfg="cfail2")]
+#[rustc_clean(label="Hir", cfg="cfail3")]
+#[rustc_metadata_dirty(cfg="cfail2")]
+#[rustc_metadata_clean(cfg="cfail3")]
+enum EnumChangeValueCStyleVariant0 {
+ Variant1,
+ Variant2 = 22,
+}
+
+#[cfg(cfail1)]
+enum EnumChangeValueCStyleVariant1 {
+ Variant1,
+ Variant2,
+}
+
+#[cfg(not(cfail1))]
+#[rustc_dirty(label="Hir", cfg="cfail2")]
+#[rustc_clean(label="Hir", cfg="cfail3")]
+#[rustc_metadata_dirty(cfg="cfail2")]
+#[rustc_metadata_clean(cfg="cfail3")]
+enum EnumChangeValueCStyleVariant1 {
+ Variant1,
+ Variant2 = 11,
+}
+
+
+
+// Add a c-style variant ------------------------------------------------------
+#[cfg(cfail1)]
+enum EnumAddCStyleVariant {
+ Variant1,
+}
+
+#[cfg(not(cfail1))]
+#[rustc_dirty(label="Hir", cfg="cfail2")]
+#[rustc_clean(label="Hir", cfg="cfail3")]
+#[rustc_metadata_dirty(cfg="cfail2")]
+#[rustc_metadata_clean(cfg="cfail3")]
+enum EnumAddCStyleVariant {
+ Variant1,
+ Variant2,
+}
+
+
+
+// Remove a c-style variant ---------------------------------------------------
+#[cfg(cfail1)]
+enum EnumRemoveCStyleVariant {
+ Variant1,
+ Variant2,
+}
+
+#[cfg(not(cfail1))]
+#[rustc_dirty(label="Hir", cfg="cfail2")]
+#[rustc_clean(label="Hir", cfg="cfail3")]
+#[rustc_metadata_dirty(cfg="cfail2")]
+#[rustc_metadata_clean(cfg="cfail3")]
+enum EnumRemoveCStyleVariant {
+ Variant1,
+}
+
+
+
+// Add a tuple-style variant --------------------------------------------------
+#[cfg(cfail1)]
+enum EnumAddTupleStyleVariant {
+ Variant1,
+}
+
+#[cfg(not(cfail1))]
+#[rustc_dirty(label="Hir", cfg="cfail2")]
+#[rustc_clean(label="Hir", cfg="cfail3")]
+#[rustc_metadata_dirty(cfg="cfail2")]
+#[rustc_metadata_clean(cfg="cfail3")]
+enum EnumAddTupleStyleVariant {
+ Variant1,
+ Variant2(u32, f32),
+}
+
+
+
+// Remove a tuple-style variant -----------------------------------------------
+#[cfg(cfail1)]
+enum EnumRemoveTupleStyleVariant {
+ Variant1,
+ Variant2(u32, f32),
+}
+
+#[cfg(not(cfail1))]
+#[rustc_dirty(label="Hir", cfg="cfail2")]
+#[rustc_clean(label="Hir", cfg="cfail3")]
+#[rustc_metadata_dirty(cfg="cfail2")]
+#[rustc_metadata_clean(cfg="cfail3")]
+enum EnumRemoveTupleStyleVariant {
+ Variant1,
+}
+
+
+
+// Add a struct-style variant -------------------------------------------------
+#[cfg(cfail1)]
+enum EnumAddStructStyleVariant {
+ Variant1,
+}
+
+#[cfg(not(cfail1))]
+#[rustc_dirty(label="Hir", cfg="cfail2")]
+#[rustc_clean(label="Hir", cfg="cfail3")]
+#[rustc_metadata_dirty(cfg="cfail2")]
+#[rustc_metadata_clean(cfg="cfail3")]
+enum EnumAddStructStyleVariant {
+ Variant1,
+ Variant2 { a: u32, b: f32 },
+}
+
+
+
+// Remove a struct-style variant ----------------------------------------------
+#[cfg(cfail1)]
+enum EnumRemoveStructStyleVariant {
+ Variant1,
+ Variant2 { a: u32, b: f32 },
+}
+
+#[cfg(not(cfail1))]
+#[rustc_dirty(label="Hir", cfg="cfail2")]
+#[rustc_clean(label="Hir", cfg="cfail3")]
+#[rustc_metadata_dirty(cfg="cfail2")]
+#[rustc_metadata_clean(cfg="cfail3")]
+enum EnumRemoveStructStyleVariant {
+ Variant1,
+}
+
+
+
+// Change the type of a field in a tuple-style variant ------------------------
+#[cfg(cfail1)]
+enum EnumChangeFieldTypeTupleStyleVariant {
+ Variant1(u32, u32),
+}
+
+#[cfg(not(cfail1))]
+#[rustc_dirty(label="Hir", cfg="cfail2")]
+#[rustc_clean(label="Hir", cfg="cfail3")]
+#[rustc_metadata_dirty(cfg="cfail2")]
+#[rustc_metadata_clean(cfg="cfail3")]
+enum EnumChangeFieldTypeTupleStyleVariant {
+ Variant1(u32, u64),
+}
+
+
+
+// Change the type of a field in a struct-style variant -----------------------
+#[cfg(cfail1)]
+enum EnumChangeFieldTypeStructStyleVariant {
+ Variant1,
+ Variant2 { a: u32, b: u32 },
+}
+
+#[cfg(not(cfail1))]
+#[rustc_dirty(label="Hir", cfg="cfail2")]
+#[rustc_clean(label="Hir", cfg="cfail3")]
+#[rustc_metadata_dirty(cfg="cfail2")]
+#[rustc_metadata_clean(cfg="cfail3")]
+enum EnumChangeFieldTypeStructStyleVariant {
+ Variant1,
+ Variant2 { a: u32, b: u64 },
+}
+
+
+
+// Change the name of a field in a struct-style variant -----------------------
+#[cfg(cfail1)]
+enum EnumChangeFieldNameStructStyleVariant {
+ Variant1 { a: u32, b: u32 },
+}
+
+#[cfg(not(cfail1))]
+#[rustc_dirty(label="Hir", cfg="cfail2")]
+#[rustc_clean(label="Hir", cfg="cfail3")]
+#[rustc_metadata_dirty(cfg="cfail2")]
+#[rustc_metadata_clean(cfg="cfail3")]
+enum EnumChangeFieldNameStructStyleVariant {
+ Variant1 { a: u32, c: u32 },
+}
+
+
+
+// Change order of fields in a tuple-style variant ----------------------------
+#[cfg(cfail1)]
+enum EnumChangeOrderTupleStyleVariant {
+ Variant1(u32, u64),
+}
+
+#[cfg(not(cfail1))]
+#[rustc_dirty(label="Hir", cfg="cfail2")]
+#[rustc_clean(label="Hir", cfg="cfail3")]
+#[rustc_metadata_dirty(cfg="cfail2")]
+#[rustc_metadata_clean(cfg="cfail3")]
+enum EnumChangeOrderTupleStyleVariant {
+ Variant1(u64, u32),
+}
+
+
+
+// Change order of fields in a struct-style variant ---------------------------
+#[cfg(cfail1)]
+enum EnumChangeFieldOrderStructStyleVariant {
+ Variant1 { a: u32, b: f32 },
+}
+
+#[cfg(not(cfail1))]
+#[rustc_dirty(label="Hir", cfg="cfail2")]
+#[rustc_clean(label="Hir", cfg="cfail3")]
+#[rustc_metadata_dirty(cfg="cfail2")]
+#[rustc_metadata_clean(cfg="cfail3")]
+enum EnumChangeFieldOrderStructStyleVariant {
+ Variant1 { b: f32, a: u32 },
+}
+
+
+
+// Add a field to a tuple-style variant ---------------------------------------
+#[cfg(cfail1)]
+enum EnumAddFieldTupleStyleVariant {
+ Variant1(u32, u32),
+}
+
+#[cfg(not(cfail1))]
+#[rustc_dirty(label="Hir", cfg="cfail2")]
+#[rustc_clean(label="Hir", cfg="cfail3")]
+#[rustc_metadata_dirty(cfg="cfail2")]
+#[rustc_metadata_clean(cfg="cfail3")]
+enum EnumAddFieldTupleStyleVariant {
+ Variant1(u32, u32, u32),
+}
+
+
+
+// Add a field to a struct-style variant --------------------------------------
+#[cfg(cfail1)]
+enum EnumAddFieldStructStyleVariant {
+ Variant1 { a: u32, b: u32 },
+}
+
+#[cfg(not(cfail1))]
+#[rustc_dirty(label="Hir", cfg="cfail2")]
+#[rustc_clean(label="Hir", cfg="cfail3")]
+#[rustc_metadata_dirty(cfg="cfail2")]
+#[rustc_metadata_clean(cfg="cfail3")]
+enum EnumAddFieldStructStyleVariant {
+ Variant1 { a: u32, b: u32, c: u32 },
+}
+
+
+
+// Add #[must_use] to the enum ------------------------------------------------
+#[cfg(cfail1)]
+enum EnumAddMustUse {
+ Variant1,
+ Variant2,
+}
+
+#[cfg(not(cfail1))]
+#[rustc_dirty(label="Hir", cfg="cfail2")]
+#[rustc_clean(label="Hir", cfg="cfail3")]
+#[rustc_metadata_dirty(cfg="cfail2")]
+#[rustc_metadata_clean(cfg="cfail3")]
+#[must_use]
+enum EnumAddMustUse {
+ Variant1,
+ Variant2,
+}
+
+
+
+// Add #[repr(C)] to the enum -------------------------------------------------
+#[cfg(cfail1)]
+enum EnumAddReprC {
+ Variant1,
+ Variant2,
+}
+
+#[cfg(not(cfail1))]
+#[rustc_dirty(label="Hir", cfg="cfail2")]
+#[rustc_clean(label="Hir", cfg="cfail3")]
+#[rustc_metadata_dirty(cfg="cfail2")]
+#[rustc_metadata_clean(cfg="cfail3")]
+#[repr(C)]
+enum EnumAddReprC {
+ Variant1,
+ Variant2,
+}
+
+
+
+// Change the name of a type parameter ----------------------------------------
+#[cfg(cfail1)]
+enum EnumChangeNameOfTypeParameter<S> {
+ Variant1(S),
+}
+
+#[cfg(not(cfail1))]
+#[rustc_dirty(label="Hir", cfg="cfail2")]
+#[rustc_clean(label="Hir", cfg="cfail3")]
+#[rustc_metadata_dirty(cfg="cfail2")]
+#[rustc_metadata_clean(cfg="cfail3")]
+#[repr(C)]
+enum EnumChangeNameOfTypeParameter<T> {
+ Variant1(T),
+}
+
+
+
+// Add a type parameter ------------------------------------------------------
+#[cfg(cfail1)]
+enum EnumAddTypeParameter<S> {
+ Variant1(S),
+ Variant2(S),
+}
+
+#[cfg(not(cfail1))]
+#[rustc_dirty(label="Hir", cfg="cfail2")]
+#[rustc_clean(label="Hir", cfg="cfail3")]
+#[rustc_metadata_dirty(cfg="cfail2")]
+#[rustc_metadata_clean(cfg="cfail3")]
+#[repr(C)]
+enum EnumAddTypeParameter<S, T> {
+ Variant1(S),
+ Variant2(T),
+}
+
+
+
+// Change the name of a lifetime parameter ------------------------------------
+#[cfg(cfail1)]
+enum EnumChangeNameOfLifetimeParameter<'a> {
+ Variant1(&'a u32),
+}
+
+#[cfg(not(cfail1))]
+#[rustc_dirty(label="Hir", cfg="cfail2")]
+#[rustc_clean(label="Hir", cfg="cfail3")]
+#[rustc_metadata_dirty(cfg="cfail2")]
+#[rustc_metadata_clean(cfg="cfail3")]
+#[repr(C)]
+enum EnumChangeNameOfLifetimeParameter<'b> {
+ Variant1(&'b u32),
+}
+
+
+
+// Add a lifetime parameter ---------------------------------------------------
+#[cfg(cfail1)]
+enum EnumAddLifetimeParameter<'a> {
+ Variant1(&'a u32),
+ Variant2(&'a u32),
+}
+
+#[cfg(not(cfail1))]
+#[rustc_dirty(label="Hir", cfg="cfail2")]
+#[rustc_clean(label="Hir", cfg="cfail3")]
+#[rustc_metadata_dirty(cfg="cfail2")]
+#[rustc_metadata_clean(cfg="cfail3")]
+#[repr(C)]
+enum EnumAddLifetimeParameter<'a, 'b> {
+ Variant1(&'a u32),
+ Variant2(&'b u32),
+}
+
+
+
+// Add a lifetime bound to a lifetime parameter -------------------------------
+#[cfg(cfail1)]
+enum EnumAddLifetimeParameterBound<'a, 'b> {
+ Variant1(&'a u32),
+ Variant2(&'b u32),
+}
+
+#[cfg(not(cfail1))]
+#[rustc_dirty(label="Hir", cfg="cfail2")]
+#[rustc_clean(label="Hir", cfg="cfail3")]
+#[rustc_metadata_dirty(cfg="cfail2")]
+#[rustc_metadata_clean(cfg="cfail3")]
+#[repr(C)]
+enum EnumAddLifetimeParameterBound<'a, 'b: 'a> {
+ Variant1(&'a u32),
+ Variant2(&'b u32),
+}
+
+// Add a lifetime bound to a type parameter -----------------------------------
+#[cfg(cfail1)]
+enum EnumAddLifetimeBoundToParameter<'a, T> {
+ Variant1(T),
+ Variant2(&'a u32),
+}
+
+#[cfg(not(cfail1))]
+#[rustc_dirty(label="Hir", cfg="cfail2")]
+#[rustc_clean(label="Hir", cfg="cfail3")]
+#[rustc_metadata_dirty(cfg="cfail2")]
+#[rustc_metadata_clean(cfg="cfail3")]
+#[repr(C)]
+enum EnumAddLifetimeBoundToParameter<'a, T: 'a> {
+ Variant1(T),
+ Variant2(&'a u32),
+}
+
+
+
+// Add a trait bound to a type parameter --------------------------------------
+#[cfg(cfail1)]
+enum EnumAddTraitBound<S> {
+ Variant1(S),
+}
+
+#[cfg(not(cfail1))]
+#[rustc_dirty(label="Hir", cfg="cfail2")]
+#[rustc_clean(label="Hir", cfg="cfail3")]
+#[rustc_metadata_dirty(cfg="cfail2")]
+#[rustc_metadata_clean(cfg="cfail3")]
+#[repr(C)]
+enum EnumAddTraitBound<T: Sync> {
+ Variant1(T),
+}
+
+
+
+// Add a lifetime bound to a lifetime parameter in where clause ---------------
+#[cfg(cfail1)]
+enum EnumAddLifetimeParameterBoundWhere<'a, 'b> {
+ Variant1(&'a u32),
+ Variant2(&'b u32),
+}
+
+#[cfg(not(cfail1))]
+#[rustc_dirty(label="Hir", cfg="cfail2")]
+#[rustc_clean(label="Hir", cfg="cfail3")]
+#[rustc_metadata_dirty(cfg="cfail2")]
+#[rustc_metadata_clean(cfg="cfail3")]
+#[repr(C)]
+enum EnumAddLifetimeParameterBoundWhere<'a, 'b> where 'b: 'a {
+ Variant1(&'a u32),
+ Variant2(&'b u32),
+}
+
+
+
+// Add a lifetime bound to a type parameter in where clause -------------------
+#[cfg(cfail1)]
+enum EnumAddLifetimeBoundToParameterWhere<'a, T> {
+ Variant1(T),
+ Variant2(&'a u32),
+}
+
+#[cfg(not(cfail1))]
+#[rustc_dirty(label="Hir", cfg="cfail2")]
+#[rustc_clean(label="Hir", cfg="cfail3")]
+#[rustc_metadata_dirty(cfg="cfail2")]
+#[rustc_metadata_clean(cfg="cfail3")]
+#[repr(C)]
+enum EnumAddLifetimeBoundToParameterWhere<'a, T> where T: 'a {
+ Variant1(T),
+ Variant2(&'a u32),
+}
+
+
+
+// Add a trait bound to a type parameter in where clause ----------------------
+#[cfg(cfail1)]
+enum EnumAddTraitBoundWhere<S> {
+ Variant1(S),
+}
+
+#[cfg(not(cfail1))]
+#[rustc_dirty(label="Hir", cfg="cfail2")]
+#[rustc_clean(label="Hir", cfg="cfail3")]
+#[rustc_metadata_dirty(cfg="cfail2")]
+#[rustc_metadata_clean(cfg="cfail3")]
+#[repr(C)]
+enum EnumAddTraitBoundWhere<T> where T: Sync {
+ Variant1(T),
+}
+
+
+
+// In an enum with two variants, swap usage of type parameters ----------------
+#[cfg(cfail1)]
+enum EnumSwapUsageTypeParameters<A, B> {
+ Variant1 { a: A },
+ Variant2 { a: B },
+}
+
+#[cfg(not(cfail1))]
+#[rustc_dirty(label="Hir", cfg="cfail2")]
+#[rustc_clean(label="Hir", cfg="cfail3")]
+#[rustc_metadata_dirty(cfg="cfail2")]
+#[rustc_metadata_clean(cfg="cfail3")]
+enum EnumSwapUsageTypeParameters<A, B> {
+ Variant1 { a: B },
+ Variant2 { a: A },
+}
+
+
+
+// In an enum with two variants, swap usage of lifetime parameters ------------
+#[cfg(cfail1)]
+enum EnumSwapUsageLifetimeParameters<'a, 'b> {
+ Variant1 { a: &'a u32 },
+ Variant2 { b: &'b u32 },
+}
+
+#[cfg(not(cfail1))]
+#[rustc_dirty(label="Hir", cfg="cfail2")]
+#[rustc_clean(label="Hir", cfg="cfail3")]
+#[rustc_metadata_dirty(cfg="cfail2")]
+#[rustc_metadata_clean(cfg="cfail3")]
+enum EnumSwapUsageLifetimeParameters<'a, 'b> {
+ Variant1 { a: &'b u32 },
+ Variant2 { b: &'a u32 },
+}
+
+
+
+struct ReferencedType1;
+struct ReferencedType2;
+
+
+
+// Change field type in tuple-style variant indirectly by modifying a use statement
+mod change_field_type_indirectly_tuple_style {
+ #[cfg(cfail1)]
+ use super::ReferencedType1 as FieldType;
+ #[cfg(not(cfail1))]
+ use super::ReferencedType2 as FieldType;
+
+ #[rustc_dirty(label="Hir", cfg="cfail2")]
+ #[rustc_clean(label="Hir", cfg="cfail3")]
+ #[rustc_metadata_dirty(cfg="cfail2")]
+ #[rustc_metadata_clean(cfg="cfail3")]
+ enum TupleStyle {
+ Variant1(FieldType)
+ }
+}
+
+
+
+// Change field type in record-style variant indirectly by modifying a use statement
+mod change_field_type_indirectly_struct_style {
+ #[cfg(cfail1)]
+ use super::ReferencedType1 as FieldType;
+ #[cfg(not(cfail1))]
+ use super::ReferencedType2 as FieldType;
+
+ #[rustc_dirty(label="Hir", cfg="cfail2")]
+ #[rustc_clean(label="Hir", cfg="cfail3")]
+ #[rustc_metadata_dirty(cfg="cfail2")]
+ #[rustc_metadata_clean(cfg="cfail3")]
+ enum StructStyle {
+ Variant1 { a: FieldType }
+ }
+}
+
+
+
+trait ReferencedTrait1 {}
+trait ReferencedTrait2 {}
+
+
+
+// Change trait bound of type parameter indirectly by modifying a use statement
+mod change_trait_bound_indirectly {
+ #[cfg(cfail1)]
+ use super::ReferencedTrait1 as Trait;
+ #[cfg(not(cfail1))]
+ use super::ReferencedTrait2 as Trait;
+
+ #[rustc_dirty(label="Hir", cfg="cfail2")]
+ #[rustc_clean(label="Hir", cfg="cfail3")]
+ #[rustc_metadata_dirty(cfg="cfail2")]
+ #[rustc_metadata_clean(cfg="cfail3")]
+ enum Enum<T: Trait> {
+ Variant1(T)
+ }
+}
+
+
+
+// Change trait bound of type parameter in where clause indirectly by modifying a use statement
+mod change_trait_bound_indirectly_where {
+ #[cfg(cfail1)]
+ use super::ReferencedTrait1 as Trait;
+ #[cfg(not(cfail1))]
+ use super::ReferencedTrait2 as Trait;
+
+ #[rustc_dirty(label="Hir", cfg="cfail2")]
+ #[rustc_clean(label="Hir", cfg="cfail3")]
+ #[rustc_metadata_dirty(cfg="cfail2")]
+ #[rustc_metadata_clean(cfg="cfail3")]
+ enum Enum<T> where T: Trait {
+ Variant1(T)
+ }
+}
+
+
// END RUST SOURCE
// START rustc.node13.Deaggregator.before.mir
// bb0: {
-// var0 = arg0; // scope 0 at main.rs:8:8: 8:9
-// tmp0 = var0; // scope 1 at main.rs:9:14: 9:15
-// return = Baz { x: tmp0, y: const F32(0), z: const false }; // scope ...
-// goto -> bb1; // scope 1 at main.rs:8:1: 10:2
+// _2 = _1;
+// _3 = _2;
+// _0 = Baz { x: _3, y: const F32(0), z: const false };
+// goto -> bb1;
// }
// END rustc.node13.Deaggregator.before.mir
// START rustc.node13.Deaggregator.after.mir
// bb0: {
-// var0 = arg0; // scope 0 at main.rs:8:8: 8:9
-// tmp0 = var0; // scope 1 at main.rs:9:14: 9:15
-// (return.0: usize) = tmp0; // scope 1 at main.rs:9:5: 9:34
-// (return.1: f32) = const F32(0); // scope 1 at main.rs:9:5: 9:34
-// (return.2: bool) = const false; // scope 1 at main.rs:9:5: 9:34
-// goto -> bb1; // scope 1 at main.rs:8:1: 10:2
+// _2 = _1;
+// _3 = _2;
+// (_0.0: usize) = _3;
+// (_0.1: f32) = const F32(0);
+// (_0.2: bool) = const false;
+// goto -> bb1;
// }
-// END rustc.node13.Deaggregator.after.mir
\ No newline at end of file
+// END rustc.node13.Deaggregator.after.mir
// END RUST SOURCE
// START rustc.node10.Deaggregator.before.mir
// bb0: {
-// var0 = arg0; // scope 0 at main.rs:7:8: 7:9
-// tmp0 = var0; // scope 1 at main.rs:8:19: 8:20
-// return = Baz::Foo { x: tmp0 }; // scope 1 at main.rs:8:5: 8:21
-// goto -> bb1; // scope 1 at main.rs:7:1: 9:2
+// _2 = _1;
+// _3 = _2;
+// _0 = Baz::Foo { x: _3 };
+// goto -> bb1;
// }
// END rustc.node10.Deaggregator.before.mir
// START rustc.node10.Deaggregator.after.mir
// bb0: {
-// var0 = arg0; // scope 0 at main.rs:7:8: 7:9
-// tmp0 = var0; // scope 1 at main.rs:8:19: 8:20
-// ((return as Foo).0: usize) = tmp0; // scope 1 at main.rs:8:5: 8:21
-// discriminant(return) = 1; // scope 1 at main.rs:8:5: 8:21
-// goto -> bb1; // scope 1 at main.rs:7:1: 9:2
+// _2 = _1;
+// _3 = _2;
+// ((_0 as Foo).0: usize) = _3;
+// discriminant(_0) = 1;
+// goto -> bb1;
// }
-// END rustc.node10.Deaggregator.after.mir
\ No newline at end of file
+// END rustc.node10.Deaggregator.after.mir
// END RUST SOURCE
// START rustc.node4.SimplifyBranches.initial-before.mir
// bb0: {
-// if(const false) -> [true: bb1, false: bb2]; // scope 0 at simplify_if.rs:12:5: 14:6
+// if(const false) -> [true: bb1, false: bb2];
// }
// END rustc.node4.SimplifyBranches.initial-before.mir
// START rustc.node4.SimplifyBranches.initial-after.mir
// bb0: {
-// goto -> bb2; // scope 0 at simplify_if.rs:12:5: 14:6
+// goto -> bb2;
// }
-// END rustc.node4.SimplifyBranches.initial-after.mir
\ No newline at end of file
+// END rustc.node4.SimplifyBranches.initial-after.mir
// END RUST SOURCE
// START rustc.node4.TypeckMir.before.mir
// bb0: {
-// StorageLive(var0); // scope 0 at storage_ranges.rs:14:9: 14:10
-// var0 = const 0i32; // scope 0 at storage_ranges.rs:14:13: 14:14
-// StorageLive(var1); // scope 1 at storage_ranges.rs:16:13: 16:14
-// StorageLive(tmp1); // scope 1 at storage_ranges.rs:16:18: 16:25
-// StorageLive(tmp2); // scope 1 at storage_ranges.rs:16:23: 16:24
-// tmp2 = var0; // scope 1 at storage_ranges.rs:16:23: 16:24
-// tmp1 = std::option::Option<i32>::Some(tmp2,); // scope 1 at storage_ranges.rs:16:18: 16:25
-// var1 = &tmp1; // scope 1 at storage_ranges.rs:16:17: 16:25
-// StorageDead(tmp2); // scope 1 at storage_ranges.rs:16:23: 16:24
-// tmp0 = (); // scope 2 at storage_ranges.rs:15:5: 17:6
-// StorageDead(tmp1); // scope 1 at storage_ranges.rs:16:18: 16:25
-// StorageDead(var1); // scope 1 at storage_ranges.rs:16:13: 16:14
-// StorageLive(var2); // scope 1 at storage_ranges.rs:18:9: 18:10
-// var2 = const 1i32; // scope 1 at storage_ranges.rs:18:13: 18:14
-// return = (); // scope 3 at storage_ranges.rs:13:11: 19:2
-// StorageDead(var2); // scope 1 at storage_ranges.rs:18:9: 18:10
-// StorageDead(var0); // scope 0 at storage_ranges.rs:14:9: 14:10
-// goto -> bb1; // scope 0 at storage_ranges.rs:13:1: 19:2
+// StorageLive(_1);
+// _1 = const 0i32;
+// StorageLive(_3);
+// StorageLive(_4);
+// StorageLive(_5);
+// _5 = _1;
+// _4 = std::option::Option<i32>::Some(_5,);
+// _3 = &_4;
+// StorageDead(_5);
+// _2 = ();
+// StorageDead(_4);
+// StorageDead(_3);
+// StorageLive(_6);
+// _6 = const 1i32;
+// _0 = ();
+// StorageDead(_6);
+// StorageDead(_1);
+// goto -> bb1;
// }
//
// bb1: {
-// return; // scope 0 at storage_ranges.rs:13:1: 19:2
+// return;
// }
// END rustc.node4.TypeckMir.before.mir
// compile-flags: -Z parse-only
extern {
- f(); //~ ERROR expected one of `fn`, `pub`, `static`, or `}`, found `f`
+ f(); //~ ERROR expected one of `!` or `::`, found `(`
}
fn main() {
// compile-flags: -Z parse-only
trait MyTrait<T>: Iterator {
- Item = T; //~ ERROR expected one of `const`, `extern`, `fn`, `type`, or `unsafe`, found `Item`
+ Item = T; //~ ERROR expected one of `!` or `::`, found `=`
+ //~| ERROR expected item, found `=`
}
// except according to those terms.
// error-pattern:thread '<unnamed>' panicked at 'test'
+// ignore-emscripten Needs threads
use std::thread;
// except according to those terms.
// error-pattern:thread 'owned name' panicked at 'test'
+// ignore-emscripten Needs threads.
use std::thread::Builder;
// except according to those terms.
// error-pattern:Ensure that the child thread runs by panicking
+// ignore-emscripten Needs threads.
use std::thread;
// error-pattern:thread 'test_foo' panicked at
// compile-flags: --test
// ignore-pretty: does not work well with `--test`
+// ignore-emscripten
#[test]
fn test_foo() {
// error-pattern:thread 'test_foo' panicked at
// compile-flags: --test
// ignore-pretty: does not work well with `--test`
+// ignore-emscripten
#[test]
#[should_panic(expected = "foobar")]
// compile-flags: --test
// exec-env:RUST_TEST_THREADS=foo
// ignore-pretty: does not work well with `--test`
+// ignore-emscripten
#[test]
fn do_nothing() {}
--- /dev/null
+-include ../tools.mk
+RUSTC_FLAGS = -C link-arg="-lfoo" -C link-arg="-lbar" -Z print-link-args
+
+all:
+ $(RUSTC) $(RUSTC_FLAGS) empty.rs | grep lfoo | grep lbar
--- /dev/null
+// Copyright 2016 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+fn main() { }
format!("_ _ --sysroot {} --crate-type dylib", path.to_str().unwrap())
.split(' ').map(|s| s.to_string()).collect();
- let (result, _) = rustc_driver::run_compiler_with_file_loader(
- &args, &mut JitCalls, box JitLoader);
+ let (result, _) = rustc_driver::run_compiler(
+ &args, &mut JitCalls, Some(box JitLoader), None);
if let Err(n) = result {
panic!("Error {}", n);
}
--- /dev/null
+-include ../tools.mk
+
+all:
+ $(RUSTC) foo.rs
+ $(RUSTC) bar.rs --emit dep-info
+ grep "rustc-macro source" $(TMPDIR)/bar.d && exit 1 || exit 0
--- /dev/null
+// Copyright 2016 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+#![feature(rustc_macro)]
+
+#[macro_use]
+extern crate foo;
+
+#[derive(A)]
+struct A;
+
+fn main() {
+ let _b = B;
+}
--- /dev/null
+// Copyright 2016 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+#![crate_type = "rustc-macro"]
+#![feature(rustc_macro)]
+#![feature(rustc_macro_lib)]
+
+extern crate rustc_macro;
+
+use rustc_macro::TokenStream;
+
+#[rustc_macro_derive(A)]
+pub fn derive(input: TokenStream) -> TokenStream {
+ let input = input.to_string();
+ assert!(input.contains("struct A;"));
+ "struct B;".parse().unwrap()
+}
let mut tc = TestCalls { count: 1 };
// we should never get use this filename, but lets make sure they are valid args.
let args = vec!["compiler-calls".to_string(), "foo.rs".to_string()];
- rustc_driver::run_compiler(&args, &mut tc);
+ rustc_driver::run_compiler(&args, &mut tc, None, None);
assert_eq!(tc.count, 30);
}
--- /dev/null
+// Copyright 2016 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+// aux-build:append-impl.rs
+
+#![feature(rustc_macro)]
+#![allow(warnings)]
+
+#[macro_use]
+extern crate append_impl;
+
+trait Append {
+ fn foo(&self);
+}
+
+#[derive(PartialEq,
+ Append,
+ Eq)]
+struct A {
+ inner: u32,
+}
+
+fn main() {
+ A { inner: 3 }.foo();
+}
--- /dev/null
+// Copyright 2016 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+// force-host
+// no-prefer-dynamic
+
+#![feature(rustc_macro)]
+#![feature(rustc_macro_lib)]
+#![crate_type = "rustc-macro"]
+
+extern crate rustc_macro;
+
+use rustc_macro::TokenStream;
+
+#[rustc_macro_derive(Append)]
+pub fn derive_a(input: TokenStream) -> TokenStream {
+ let mut input = input.to_string();
+ input.push_str("
+ impl Append for A {
+ fn foo(&self) {}
+ }
+ ");
+ input.parse().unwrap()
+}
pub fn derive(input: TokenStream) -> TokenStream {
let input = input.to_string();
assert!(input.contains("struct A;"));
- assert!(input.contains("#[derive(Eq, Copy, Clone)]"));
- "#[derive(Eq, Copy, Clone)] struct A;".parse().unwrap()
+ assert!(input.contains("#[derive(Debug, PartialEq, Eq, Copy, Clone)]"));
+ "#[derive(Debug, PartialEq, Eq, Copy, Clone)] struct A;".parse().unwrap()
}
// no-prefer-dynamic
// aux-build:allocator-dummy.rs
+// ignore-emscripten
#![feature(test)]
--- /dev/null
+// Copyright 2016 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+// This test ensures we can attach attributes to the formals in all
+// places where generic parameter lists occur, assuming appropriate
+// feature gates are enabled.
+//
+// (We are prefixing all tested features with `rustc_`, to ensure that
+// the attributes themselves won't be rejected by the compiler when
+// using `rustc_attrs` feature. There is a separate compile-fail/ test
+// ensuring that the attribute feature-gating works in this context.)
+
+#![feature(generic_param_attrs, rustc_attrs)]
+#![allow(dead_code)]
+
+struct StLt<#[rustc_lt_struct] 'a>(&'a u32);
+struct StTy<#[rustc_ty_struct] I>(I);
+
+enum EnLt<#[rustc_lt_enum] 'b> { A(&'b u32), B }
+enum EnTy<#[rustc_ty_enum] J> { A(J), B }
+
+trait TrLt<#[rustc_lt_trait] 'c> { fn foo(&self, _: &'c [u32]) -> &'c u32; }
+trait TrTy<#[rustc_ty_trait] K> { fn foo(&self, _: K); }
+
+type TyLt<#[rustc_lt_type] 'd> = &'d u32;
+type TyTy<#[rustc_ty_type] L> = (L, );
+
+impl<#[rustc_lt_inherent] 'e> StLt<'e> { }
+impl<#[rustc_ty_inherent] M> StTy<M> { }
+
+impl<#[rustc_lt_impl_for] 'f> TrLt<'f> for StLt<'f> {
+ fn foo(&self, _: &'f [u32]) -> &'f u32 { loop { } }
+}
+impl<#[rustc_ty_impl_for] N> TrTy<N> for StTy<N> {
+ fn foo(&self, _: N) { }
+}
+
+fn f_lt<#[rustc_lt_fn] 'g>(_: &'g [u32]) -> &'g u32 { loop { } }
+fn f_ty<#[rustc_ty_fn] O>(_: O) { }
+
+impl<I> StTy<I> {
+ fn m_lt<#[rustc_lt_meth] 'h>(_: &'h [u32]) -> &'h u32 { loop { } }
+ fn m_ty<#[rustc_ty_meth] P>(_: P) { }
+}
+
+fn hof_lt<Q>(_: Q)
+ where Q: for <#[rustc_lt_hof] 'i> Fn(&'i [u32]) -> &'i u32
+{
+}
+
+fn main() {
+
+}
+++ /dev/null
-// Copyright 2016 The Rust Project Developers. See the COPYRIGHT
-// file at the top-level directory of this distribution and at
-// http://rust-lang.org/COPYRIGHT.
-//
-// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
-// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
-// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
-// option. This file may not be copied, modified, or distributed
-// except according to those terms.
-
-// ignore-emscripten
-
-// Test that `CString::new("hello").unwrap().as_ptr()` pattern
-// leads to failure.
-
-use std::env;
-use std::ffi::{CString, CStr};
-use std::os::raw::c_char;
-use std::process::{Command, Stdio};
-
-fn main() {
- let args: Vec<String> = env::args().collect();
- if args.len() > 1 && args[1] == "child" {
- // Repeat several times to be more confident that
- // it is `Drop` for `CString` that does the cleanup,
- // and not just some lucky UB.
- let xs = vec![CString::new("Hello").unwrap(); 10];
- let ys = xs.iter().map(|s| s.as_ptr()).collect::<Vec<_>>();
- drop(xs);
- assert!(ys.into_iter().any(is_hello));
- return;
- }
-
- let output = Command::new(&args[0]).arg("child").output().unwrap();
- assert!(!output.status.success());
-}
-
-fn is_hello(s: *const c_char) -> bool {
- // `s` is a dangling pointer and reading it is technically
- // undefined behavior. But we want to prevent the most diabolical
- // kind of UB (apart from nasal demons): reading a value that was
- // previously written.
- //
- // Segfaulting or reading an empty string is Ok,
- // reading "Hello" is bad.
- let s = unsafe { CStr::from_ptr(s) };
- let hello = CString::new("Hello").unwrap();
- s == hello.as_ref()
-}
StructVariant { x: isize, y : usize }
}
+#[derive(Debug)]
+struct Pointers(*const Send, *mut Sync);
+
macro_rules! t {
($x:expr, $expected:expr) => {
assert_eq!(format!("{:?}", $x), $expected.to_string())
--- /dev/null
+// Copyright 2016 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+#![feature(discriminant_value)]
+
+use std::mem;
+
+enum ADT {
+ First(u32, u32),
+ Second(u64)
+}
+
+pub fn main() {
+ assert!(mem::discriminant(&ADT::First(0,0)) == mem::discriminant(&ADT::First(1,1)));
+ assert!(mem::discriminant(&ADT::Second(5)) == mem::discriminant(&ADT::Second(6)));
+ assert!(mem::discriminant(&ADT::First(2,2)) != mem::discriminant(&ADT::Second(2)));
+
+ let _ = mem::discriminant(&10);
+ let _ = mem::discriminant(&"test");
+}
+
// pretty-expanded FIXME #23616
// ignore-msvc
+// ignore-emscripten
struct TwoU8s {
one: u8,
// ignore-windows
// ignore-android
// ignore-emscripten
+// ignore-haiku
#![feature(libc)]
// option. This file may not be copied, modified, or distributed
// except according to those terms.
+// ignore-emscripten missing rust_begin_unwind
+
#![feature(lang_items, start, collections)]
#![no_std]
fn g() {
let x = 0;
- macro_rules! m { ($x:ident) => {
- macro_rules! m2 { () => { ($x, x) } }
+ macro_rules! m { ($m1:ident, $m2:ident, $x:ident) => {
+ macro_rules! $m1 { () => { ($x, x) } }
let x = 1;
- macro_rules! m3 { () => { ($x, x) } }
+ macro_rules! $m2 { () => { ($x, x) } }
} }
let x = 2;
- m!(x);
+ m!(m2, m3, x);
let x = 3;
assert_eq!(m2!(), (2, 0));
assert_eq!(m3!(), (2, 1));
let x = 4;
- m!(x);
- assert_eq!(m2!(), (4, 0));
- assert_eq!(m3!(), (4, 1));
+ m!(m4, m5, x);
+ assert_eq!(m4!(), (4, 0));
+ assert_eq!(m5!(), (4, 1));
}
mod foo {
--- /dev/null
+// Copyright 2016 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+
+pub trait Indexable<T>: std::ops::Index<usize, Output = T> {
+ fn index2(&self, i: usize) -> &T {
+ &self[i]
+ }
+}
+fn main() {}
--- /dev/null
+// Copyright 2016 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+// compile-flags:--test
+#![deny(private_in_public)]
+
+#[test] fn foo() {}
+mod foo {}
+
+#[test] fn core() {}
+extern crate core;
--- /dev/null
+// Copyright 2016 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+// Ensure that types that rely on obligations are autoderefed
+// correctly
+
+fn main() {
+ let x : Vec<Box<Fn()>> = vec![Box::new(|| ())];
+ x[0]()
+}
--- /dev/null
+// Copyright 2016 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+macro_rules! m { () => { 1 } }
+macro_rules! n { () => { 1 + m!() } }
+
+fn main() {
+ let _: [u32; n!()] = [0, 0];
+}
pub fn main() {
assert_eq!(mod_dir_simple::syrup::foo(), 10);
+
+ #[path = "auxiliary"]
+ mod foo {
+ mod two_macros;
+ }
+
+ #[path = "auxiliary"]
+ mod bar {
+ macro_rules! m { () => { mod two_macros; } }
+ m!();
+ }
}
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.
+// ignore-emscripten Not sure what's happening here.
use std::mem;
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.
+// ignore-emscripten
use std::mem;
// compile-flags:-C panic=abort
// aux-build:exit-success-if-unwind.rs
// no-prefer-dynamic
+// ignore-emscripten Function not implemented
extern crate exit_success_if_unwind;
// compile-flags:-C panic=abort
// no-prefer-dynamic
+// ignore-emscripten Function not implemented.
use std::process::Command;
use std::env;
// compile-flags:-C lto -C panic=abort
// no-prefer-dynamic
+// ignore-emscripten Function not implemented.
use std::process::Command;
use std::env;
// compile-flags:-C lto -C panic=unwind
// no-prefer-dynamic
+// ignore-emscripten Function not implemented.
use std::process::Command;
use std::env;
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.
+// ignore-emscripten Function not implemented.
use std::env;
use std::io;
// test the size hints and emptying
let mut long = 0...255u8;
- let mut short = 42...42;
+ let mut short = 42...42u8;
assert_eq!(long.size_hint(), (256, Some(256)));
assert_eq!(short.size_hint(), (1, Some(1)));
long.next();
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.
+// ignore-emscripten linking with emcc failed
#![feature(repr_simd, platform_intrinsics, concat_idents, test)]
#![allow(non_camel_case_types)]
let data = Arc::new(Mutex::new(Vec::new()));
let sink = Sink(data.clone());
let res = thread::Builder::new().spawn(move|| -> () {
- io::set_panic(Box::new(sink));
+ io::set_panic(Some(Box::new(sink)));
panic!("Hello, world!")
}).unwrap().join();
assert!(res.is_err());
--> $DIR/tab.rs:14:2
|
14 | \tbar;
- | \t^^^
+ | \t^^^ unresolved name
error: aborting due to previous error
--> $DIR/macro-backtrace-nested.rs:15:12
|
15 | () => (fake)
- | ^^^^
+ | ^^^^ unresolved name
...
27 | 1 + call_nested_expr!();
| ------------------- in this macro invocation
--> $DIR/macro-backtrace-nested.rs:15:12
|
15 | () => (fake)
- | ^^^^
+ | ^^^^ unresolved name
...
28 | call_nested_expr_sum!();
| ------------------------ in this macro invocation
--> $DIR/type-binding.rs:16:20
|
16 | fn homura<T: Deref<Trget = i32>>(_: T) {}
- | ^^^^^^^^^^^
+ | ^^^^^^^^^^^ associated type `Trget` not found
error: aborting due to previous error
--- /dev/null
+// Copyright 2014 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+fn main() {
+ let foo = 1;
+
+ // `foo` shouldn't be suggested, it is too dissimilar from `bar`.
+ println!("Hello {}", bar);
+
+ // But this is close enough.
+ println!("Hello {}", fob);
+}
--- /dev/null
+error[E0425]: unresolved name `bar`
+ --> $DIR/typo-suggestion.rs:15:26
+ |
+15 | println!("Hello {}", bar);
+ | ^^^ unresolved name
+
+error[E0425]: unresolved name `fob`
+ --> $DIR/typo-suggestion.rs:18:26
+ |
+18 | println!("Hello {}", fob);
+ | ^^^ did you mean `foo`?
+
+error: aborting due to 2 previous errors
+
pub cflags: String,
pub llvm_components: String,
pub llvm_cxxflags: String,
+ pub nodejs: Option<String>,
}
reqopt("", "cflags", "flags for the C compiler", "FLAGS"),
reqopt("", "llvm-components", "list of LLVM components built in", "LIST"),
reqopt("", "llvm-cxxflags", "C++ flags for LLVM", "FLAGS"),
+ optopt("", "nodejs", "the name of nodejs", "PATH"),
optflag("h", "help", "show this message"));
let (argv0, args_) = args.split_first().unwrap();
cflags: matches.opt_str("cflags").unwrap(),
llvm_components: matches.opt_str("llvm-components").unwrap(),
llvm_cxxflags: matches.opt_str("llvm-cxxflags").unwrap(),
+ nodejs: matches.opt_str("nodejs"),
}
}
},
color: test::AutoColor,
test_threads: None,
+ skip: vec![],
}
}
}
};
+ // Debugging emscripten code doesn't make sense today
+ let mut ignore = early_props.ignore;
+ if (config.mode == DebugInfoGdb || config.mode == DebugInfoLldb) &&
+ config.target.contains("emscripten") {
+ ignore = true;
+ }
+
test::TestDescAndFn {
desc: test::TestDesc {
name: make_test_name(config, testpaths),
- ignore: early_props.ignore,
+ ignore: ignore,
should_panic: should_panic,
},
testfn: make_test_closure(config, testpaths),
"arm-linux-androideabi" | "armv7-linux-androideabi" | "aarch64-linux-android" => {
self._arm_exec_compiled_test(env)
}
-
_=> {
let aux_dir = self.aux_output_dir_name();
self.compose_and_run(self.make_run_args(),
fn make_exe_name(&self) -> PathBuf {
let mut f = self.output_base_name();
// FIXME: This is using the host architecture exe suffix, not target!
- if self.config.target == "asmjs-unknown-emscripten" {
+ if self.config.target.contains("emscripten") {
let mut fname = f.file_name().unwrap().to_os_string();
fname.push(".js");
f.set_file_name(&fname);
let mut args = self.split_maybe_args(&self.config.runtool);
// If this is emscripten, then run tests under nodejs
- if self.config.target == "asmjs-unknown-emscripten" {
- args.push("nodejs".to_owned());
+ if self.config.target.contains("emscripten") {
+ let nodejs = self.config.nodejs.clone().unwrap_or("nodejs".to_string());
+ args.push(nodejs);
}
let exe_file = self.make_exe_name();
("darwin", "macos"),
("dragonfly", "dragonfly"),
("freebsd", "freebsd"),
+ ("haiku", "haiku"),
("ios", "ios"),
("linux", "linux"),
("mingw32", "windows"),
("sparc", "sparc"),
("x86_64", "x86_64"),
("xcore", "xcore"),
- ("asmjs", "asmjs")];
+ ("asmjs", "asmjs"),
+ ("wasm32", "wasm32")];
pub fn get_os(triple: &str) -> &'static str {
for &(triple_os, os) in OS_TABLE {
mod features;
mod cargo;
mod cargo_lock;
+mod pal;
fn main() {
let path = env::args_os().skip(1).next().expect("need an argument");
cargo::check(&path, &mut bad);
features::check(&path, &mut bad);
cargo_lock::check(&path, &mut bad);
+ pal::check(&path, &mut bad);
if bad {
panic!("some tidy checks failed");
--- /dev/null
+// Copyright 2016 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+//! Tidy check to enforce rules about platform-specific code in std
+//!
+//! This is intended to maintain existing standards of code
+//! organization in hopes that the standard library will continue to
+//! be refactored to isolate platform-specific bits, making porting
+//! easier; where "standard library" roughly means "all the
+//! dependencies of the std and test crates".
+//!
+//! This generally means placing restrictions on where `cfg(unix)`,
+//! `cfg(windows)`, `cfg(target_os)` and `cfg(target_env)` may appear,
+//! the basic objective being to isolate platform-specific code to the
+//! platform-specific `std::sys` modules, and to the allocation,
+//! unwinding, and libc crates.
+//!
+//! Following are the basic rules, though there are currently
+//! exceptions:
+//!
+//! - core may not have platform-specific code
+//! - liballoc_system may have platform-specific code
+//! - liballoc_jemalloc may have platform-specific code
+//! - libpanic_abort may have platform-specific code
+//! - libpanic_unwind may have platform-specific code
+//! - libunwind may have platform-specific code
+//! - other crates in the std facade may not
+//! - std may have platform-specific code in the following places
+//! - sys/unix/
+//! - sys/windows/
+//! - os/
+//!
+//! `std/sys_common` should _not_ contain platform-specific code.
+//! Finally, because std contains tests with platform-specific
+//! `ignore` attributes, once the parser encounters `mod tests`,
+//! platform-specific cfgs are allowed. Not sure yet how to deal with
+//! this in the long term.
+
+use std::fs::File;
+use std::io::Read;
+use std::path::Path;
+use std::iter::Iterator;
+
+// Paths that may contain platform-specific code
+const EXCEPTION_PATHS: &'static [&'static str] = &[
+ // std crates
+ "src/liballoc_jemalloc",
+ "src/liballoc_system",
+ "src/liblibc",
+ "src/libpanic_abort",
+ "src/libpanic_unwind",
+ "src/libunwind",
+ "src/libstd/sys/unix", // This is where platform-specific code for std should live
+ "src/libstd/sys/windows", // Ditto
+ "src/libstd/os", // Platform-specific public interfaces
+ "src/rtstartup", // Not sure what to do about this. magic stuff for mingw
+
+ // temporary exceptions
+ "src/libstd/lib.rs", // This could probably be done within the sys directory
+ "src/libstd/rtdeps.rs", // Until rustbuild replaces make
+ "src/libstd/path.rs",
+ "src/libstd/io/stdio.rs",
+ "src/libstd/num/f32.rs",
+ "src/libstd/num/f64.rs",
+ "src/libstd/thread/local.rs",
+ "src/libstd/sys/common/mod.rs",
+ "src/libstd/sys/common/net.rs",
+ "src/libstd/sys/common/util.rs",
+ "src/libterm", // Not sure how to make this crate portable, but test needs it
+ "src/libtest", // Probably should defer to unstable std::sys APIs
+
+ // std testing crates, ok for now at least
+ "src/libcoretest",
+
+ // non-std crates
+ "src/test",
+ "src/tools",
+ "src/librustc",
+ "src/librustdoc",
+ "src/libsyntax",
+ "src/bootstrap",
+];
+
+pub fn check(path: &Path, bad: &mut bool) {
+ let ref mut contents = String::new();
+ // Sanity check that the complex parsing here works
+ let ref mut saw_target_arch = false;
+ let ref mut saw_cfg_bang = false;
+ super::walk(path, &mut super::filter_dirs, &mut |file| {
+ let filestr = file.to_string_lossy().replace("\\", "/");
+ if !filestr.ends_with(".rs") { return }
+
+ let is_exception_path = EXCEPTION_PATHS.iter().any(|s| filestr.contains(&**s));
+ if is_exception_path { return }
+
+ check_cfgs(contents, &file, bad, saw_target_arch, saw_cfg_bang);
+ });
+
+ assert!(*saw_target_arch);
+ assert!(*saw_cfg_bang);
+}
+
+fn check_cfgs(contents: &mut String, file: &Path,
+ bad: &mut bool, saw_target_arch: &mut bool, saw_cfg_bang: &mut bool) {
+ contents.truncate(0);
+ t!(t!(File::open(file), file).read_to_string(contents));
+
+ // For now it's ok to have platform-specific code after 'mod tests'.
+ let mod_tests_idx = find_test_mod(contents);
+ let contents = &contents[..mod_tests_idx];
+ // Pull out all "cfg(...)" and "cfg!(...)" strings
+ let cfgs = parse_cfgs(contents);
+
+ let mut line_numbers: Option<Vec<usize>> = None;
+ let mut err = |idx: usize, cfg: &str| {
+ if line_numbers.is_none() {
+ line_numbers = Some(contents.match_indices('\n').map(|(i, _)| i).collect());
+ }
+ let line_numbers = line_numbers.as_ref().expect("");
+ let line = match line_numbers.binary_search(&idx) {
+ Ok(_) => unreachable!(),
+ Err(i) => i + 1
+ };
+ println!("{}:{}: platform-specific cfg: {}", file.display(), line, cfg);
+ *bad = true;
+ };
+
+ for (idx, cfg) in cfgs.into_iter() {
+ // Sanity check that the parsing here works
+ if !*saw_target_arch && cfg.contains("target_arch") { *saw_target_arch = true }
+ if !*saw_cfg_bang && cfg.contains("cfg!") { *saw_cfg_bang = true }
+
+ let contains_platform_specific_cfg =
+ cfg.contains("target_os")
+ || cfg.contains("target_env")
+ || cfg.contains("target_vendor")
+ || cfg.contains("unix")
+ || cfg.contains("windows");
+
+ if !contains_platform_specific_cfg { continue }
+
+ let preceeded_by_doc_comment = {
+ let pre_contents = &contents[..idx];
+ let pre_newline = pre_contents.rfind('\n');
+ let pre_doc_comment = pre_contents.rfind("///");
+ match (pre_newline, pre_doc_comment) {
+ (Some(n), Some(c)) => n < c,
+ (None, Some(_)) => true,
+ (_, None) => false,
+ }
+ };
+
+ if preceeded_by_doc_comment { continue }
+
+ err(idx, cfg);
+ }
+}
+
+fn find_test_mod(contents: &str) -> usize {
+ if let Some(mod_tests_idx) = contents.find("mod tests") {
+ // Also capture a previos line indicating "mod tests" in cfg-ed out
+ let prev_newline_idx = contents[..mod_tests_idx].rfind('\n').unwrap_or(mod_tests_idx);
+ let prev_newline_idx = contents[..prev_newline_idx].rfind('\n');
+ if let Some(nl) = prev_newline_idx {
+ let prev_line = &contents[nl + 1 .. mod_tests_idx];
+ let emcc_cfg = "cfg(all(test, not(target_os";
+ if prev_line.contains(emcc_cfg) {
+ nl
+ } else {
+ mod_tests_idx
+ }
+ } else {
+ mod_tests_idx
+ }
+ } else {
+ contents.len()
+ }
+}
+
+fn parse_cfgs<'a>(contents: &'a str) -> Vec<(usize, &'a str)> {
+ let candidate_cfgs = contents.match_indices("cfg");
+ let candidate_cfg_idxs = candidate_cfgs.map(|(i, _)| i);
+ // This is puling out the indexes of all "cfg" strings
+ // that appear to be tokens succeeded by a paren.
+ let cfgs = candidate_cfg_idxs.filter(|i| {
+ let pre_idx = i.saturating_sub(*i);
+ let succeeds_non_ident = !contents.as_bytes().get(pre_idx)
+ .cloned()
+ .map(char::from)
+ .map(char::is_alphanumeric)
+ .unwrap_or(false);
+ let contents_after = &contents[*i..];
+ let first_paren = contents_after.find('(');
+ let paren_idx = first_paren.map(|ip| i + ip);
+ let preceeds_whitespace_and_paren = paren_idx.map(|ip| {
+ let maybe_space = &contents[*i + "cfg".len() .. ip];
+ maybe_space.chars().all(|c| char::is_whitespace(c) || c == '!')
+ }).unwrap_or(false);
+
+ succeeds_non_ident && preceeds_whitespace_and_paren
+ });
+
+ cfgs.map(|i| {
+ let mut depth = 0;
+ let contents_from = &contents[i..];
+ for (j, byte) in contents_from.bytes().enumerate() {
+ match byte {
+ b'(' => {
+ depth += 1;
+ }
+ b')' => {
+ depth -= 1;
+ if depth == 0 {
+ return (i, &contents_from[.. j + 1]);
+ }
+ }
+ _ => { }
+ }
+ }
+
+ unreachable!()
+ }).collect()
+}
projects / rust.git / commitdiff