cmd.arg(format!("-Clinker={}", target_linker));
}
- // Pass down incremental directory, if any.
- if let Ok(dir) = env::var("RUSTC_INCREMENTAL") {
- cmd.arg(format!("-Zincremental={}", dir));
- }
-
let crate_name = args.windows(2)
.find(|a| &*a[0] == "--crate-name")
.unwrap();
env["LIBRARY_PATH"] = os.path.join(self.bin_root(), "lib") + \
(os.pathsep + env["LIBRARY_PATH"]) \
if "LIBRARY_PATH" in env else ""
+ env["RUSTFLAGS"] = "-Cdebuginfo=2"
env["PATH"] = os.path.join(self.bin_root(), "bin") + \
os.pathsep + env["PATH"]
if not os.path.isfile(self.cargo()):
use {Build, Mode};
use cache::{INTERNER, Interned, Cache};
use check;
+use test;
use flags::Subcommand;
use doc;
use tool;
#[derive(Copy, Clone, PartialEq, Eq, Debug)]
pub enum Kind {
Build,
+ Check,
Test,
Bench,
Dist,
tool::Compiletest, tool::RemoteTestServer, tool::RemoteTestClient,
tool::RustInstaller, tool::Cargo, tool::Rls, tool::Rustdoc, tool::Clippy,
native::Llvm, tool::Rustfmt, tool::Miri),
- Kind::Test => describe!(check::Tidy, check::Bootstrap, check::DefaultCompiletest,
- check::HostCompiletest, check::Crate, check::CrateLibrustc, check::Rustdoc,
- check::Linkcheck, check::Cargotest, check::Cargo, check::Rls, check::Docs,
- check::ErrorIndex, check::Distcheck, check::Rustfmt, check::Miri, check::Clippy,
- check::RustdocJS),
-
- Kind::Bench => describe!(check::Crate, check::CrateLibrustc),
+ Kind::Check => describe!(check::Std, check::Test, check::Rustc),
+ Kind::Test => describe!(test::Tidy, test::Bootstrap, test::DefaultCompiletest,
+ test::HostCompiletest, test::Crate, test::CrateLibrustc, test::Rustdoc,
+ test::Linkcheck, test::Cargotest, test::Cargo, test::Rls, test::Docs,
+ test::ErrorIndex, test::Distcheck, test::Rustfmt, test::Miri, test::Clippy,
+ test::RustdocJS),
+ Kind::Bench => describe!(test::Crate, test::CrateLibrustc),
Kind::Doc => describe!(doc::UnstableBook, doc::UnstableBookGen, doc::TheBook,
doc::Standalone, doc::Std, doc::Test, doc::Rustc, doc::ErrorIndex, doc::Nomicon,
doc::Reference, doc::Rustdoc, doc::RustByExample, doc::CargoBook),
pub fn run(build: &Build) {
let (kind, paths) = match build.config.cmd {
Subcommand::Build { ref paths } => (Kind::Build, &paths[..]),
+ Subcommand::Check { ref paths } => (Kind::Check, &paths[..]),
Subcommand::Doc { ref paths } => (Kind::Doc, &paths[..]),
Subcommand::Test { ref paths, .. } => (Kind::Test, &paths[..]),
Subcommand::Bench { ref paths, .. } => (Kind::Bench, &paths[..]),
cargo.env("RUSTC_CODEGEN_UNITS", n.to_string());
}
+
if let Some(host_linker) = self.build.linker(compiler.host) {
cargo.env("RUSTC_HOST_LINKER", host_linker);
}
if let Some(target_linker) = self.build.linker(target) {
cargo.env("RUSTC_TARGET_LINKER", target_linker);
}
- if cmd != "build" {
+ if cmd != "build" && cmd != "check" {
cargo.env("RUSTDOC_LIBDIR", self.rustc_libdir(self.compiler(2, self.build.build)));
}
// not guaranteeing correctness across builds if the compiler
// is changing under your feet.`
if self.config.incremental && compiler.stage == 0 {
- let incr_dir = self.incremental_dir(compiler);
- cargo.env("RUSTC_INCREMENTAL", incr_dir);
+ cargo.env("CARGO_INCREMENTAL", "1");
}
if let Some(ref on_fail) = self.config.on_fail {
-// Copyright 2016 The Rust Project Developers. See the COPYRIGHT
+// Copyright 2018 The Rust Project Developers. See the COPYRIGHT
// file at the top-level directory of this distribution and at
// http://rust-lang.org/COPYRIGHT.
//
// option. This file may not be copied, modified, or distributed
// except according to those terms.
-//! Implementation of the test-related targets of the build system.
-//!
-//! This file implements the various regression test suites that we execute on
-//! our CI.
+//! Implementation of compiling the compiler and standard library, in "check" mode.
-use std::collections::HashSet;
-use std::env;
-use std::ffi::OsString;
-use std::iter;
-use std::fmt;
-use std::fs::{self, File};
-use std::path::{PathBuf, Path};
-use std::process::Command;
-use std::io::Read;
-
-use build_helper::{self, output};
-
-use builder::{Kind, RunConfig, ShouldRun, Builder, Compiler, Step};
-use cache::{INTERNER, Interned};
-use compile;
-use dist;
-use native;
-use tool::{self, Tool};
-use util::{self, dylib_path, dylib_path_var};
-use {Build, Mode};
-use toolstate::ToolState;
-
-const ADB_TEST_DIR: &str = "/data/tmp/work";
-
-/// The two modes of the test runner; tests or benchmarks.
-#[derive(Debug, PartialEq, Eq, Hash, Copy, Clone)]
-pub enum TestKind {
- /// Run `cargo test`
- Test,
- /// Run `cargo bench`
- Bench,
-}
-
-impl TestKind {
- // Return the cargo subcommand for this test kind
- fn subcommand(self) -> &'static str {
- match self {
- TestKind::Test => "test",
- TestKind::Bench => "bench",
- }
- }
-}
-
-impl fmt::Display for TestKind {
- fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
- f.write_str(match *self {
- TestKind::Test => "Testing",
- TestKind::Bench => "Benchmarking",
- })
- }
-}
-
-fn try_run(build: &Build, cmd: &mut Command) -> bool {
- if !build.fail_fast {
- if !build.try_run(cmd) {
- let mut failures = build.delayed_failures.borrow_mut();
- failures.push(format!("{:?}", cmd));
- return false;
- }
- } else {
- build.run(cmd);
- }
- true
-}
-
-fn try_run_quiet(build: &Build, cmd: &mut Command) {
- if !build.fail_fast {
- if !build.try_run_quiet(cmd) {
- let mut failures = build.delayed_failures.borrow_mut();
- failures.push(format!("{:?}", cmd));
- }
- } else {
- build.run_quiet(cmd);
- }
-}
-
-#[derive(Debug, Copy, Clone, PartialEq, Eq, Hash)]
-pub struct Linkcheck {
- host: Interned<String>,
-}
-
-impl Step for Linkcheck {
- type Output = ();
- const ONLY_HOSTS: bool = true;
- const DEFAULT: bool = true;
-
- /// Runs the `linkchecker` tool as compiled in `stage` by the `host` compiler.
- ///
- /// This tool in `src/tools` will verify the validity of all our links in the
- /// documentation to ensure we don't have a bunch of dead ones.
- fn run(self, builder: &Builder) {
- let build = builder.build;
- let host = self.host;
-
- println!("Linkcheck ({})", host);
-
- builder.default_doc(None);
-
- let _time = util::timeit();
- try_run(build, builder.tool_cmd(Tool::Linkchecker)
- .arg(build.out.join(host).join("doc")));
- }
-
- fn should_run(run: ShouldRun) -> ShouldRun {
- let builder = run.builder;
- run.path("src/tools/linkchecker").default_condition(builder.build.config.docs)
- }
-
- fn make_run(run: RunConfig) {
- run.builder.ensure(Linkcheck { host: run.target });
- }
-}
+use compile::{run_cargo, std_cargo, test_cargo, rustc_cargo, add_to_sysroot};
+use builder::{RunConfig, Builder, ShouldRun, Step};
+use {Build, Compiler, Mode};
+use cache::Interned;
+use std::path::PathBuf;
#[derive(Debug, Copy, Clone, PartialEq, Eq, Hash)]
-pub struct Cargotest {
- stage: u32,
- host: Interned<String>,
-}
-
-impl Step for Cargotest {
- type Output = ();
- const ONLY_HOSTS: bool = true;
-
- fn should_run(run: ShouldRun) -> ShouldRun {
- run.path("src/tools/cargotest")
- }
-
- fn make_run(run: RunConfig) {
- run.builder.ensure(Cargotest {
- stage: run.builder.top_stage,
- host: run.target,
- });
- }
-
- /// Runs the `cargotest` tool as compiled in `stage` by the `host` compiler.
- ///
- /// This tool in `src/tools` will check out a few Rust projects and run `cargo
- /// test` to ensure that we don't regress the test suites there.
- fn run(self, builder: &Builder) {
- let build = builder.build;
- let compiler = builder.compiler(self.stage, self.host);
- builder.ensure(compile::Rustc { compiler, target: compiler.host });
-
- // Note that this is a short, cryptic, and not scoped directory name. This
- // is currently to minimize the length of path on Windows where we otherwise
- // quickly run into path name limit constraints.
- let out_dir = build.out.join("ct");
- t!(fs::create_dir_all(&out_dir));
-
- let _time = util::timeit();
- let mut cmd = builder.tool_cmd(Tool::CargoTest);
- try_run(build, cmd.arg(&build.initial_cargo)
- .arg(&out_dir)
- .env("RUSTC", builder.rustc(compiler))
- .env("RUSTDOC", builder.rustdoc(compiler.host)));
- }
-}
-
-#[derive(Debug, Copy, Clone, PartialEq, Eq, Hash)]
-pub struct Cargo {
- stage: u32,
- host: Interned<String>,
-}
-
-impl Step for Cargo {
- type Output = ();
- const ONLY_HOSTS: bool = true;
-
- fn should_run(run: ShouldRun) -> ShouldRun {
- run.path("src/tools/cargo")
- }
-
- fn make_run(run: RunConfig) {
- run.builder.ensure(Cargo {
- stage: run.builder.top_stage,
- host: run.target,
- });
- }
-
- /// Runs `cargo test` for `cargo` packaged with Rust.
- fn run(self, builder: &Builder) {
- let build = builder.build;
- let compiler = builder.compiler(self.stage, self.host);
-
- builder.ensure(tool::Cargo { compiler, target: self.host });
- let mut cargo = builder.cargo(compiler, Mode::Tool, self.host, "test");
- cargo.arg("--manifest-path").arg(build.src.join("src/tools/cargo/Cargo.toml"));
- if !build.fail_fast {
- cargo.arg("--no-fail-fast");
- }
-
- // Don't build tests dynamically, just a pain to work with
- cargo.env("RUSTC_NO_PREFER_DYNAMIC", "1");
-
- // Don't run cross-compile tests, we may not have cross-compiled libstd libs
- // available.
- cargo.env("CFG_DISABLE_CROSS_TESTS", "1");
-
- try_run(build, cargo.env("PATH", &path_for_cargo(builder, compiler)));
- }
-}
-
-#[derive(Debug, Copy, Clone, PartialEq, Eq, Hash)]
-pub struct Rls {
- stage: u32,
- host: Interned<String>,
-}
-
-impl Step for Rls {
- type Output = ();
- const ONLY_HOSTS: bool = true;
-
- fn should_run(run: ShouldRun) -> ShouldRun {
- run.path("src/tools/rls")
- }
-
- fn make_run(run: RunConfig) {
- run.builder.ensure(Rls {
- stage: run.builder.top_stage,
- host: run.target,
- });
- }
-
- /// Runs `cargo test` for the rls.
- fn run(self, builder: &Builder) {
- let build = builder.build;
- let stage = self.stage;
- let host = self.host;
- let compiler = builder.compiler(stage, host);
-
- builder.ensure(tool::Rls { compiler, target: self.host });
- let mut cargo = tool::prepare_tool_cargo(builder,
- compiler,
- host,
- "test",
- "src/tools/rls");
-
- // Don't build tests dynamically, just a pain to work with
- cargo.env("RUSTC_NO_PREFER_DYNAMIC", "1");
-
- builder.add_rustc_lib_path(compiler, &mut cargo);
-
- if try_run(build, &mut cargo) {
- build.save_toolstate("rls", ToolState::TestPass);
- }
- }
-}
-
-#[derive(Debug, Copy, Clone, PartialEq, Eq, Hash)]
-pub struct Rustfmt {
- stage: u32,
- host: Interned<String>,
-}
-
-impl Step for Rustfmt {
- type Output = ();
- const ONLY_HOSTS: bool = true;
-
- fn should_run(run: ShouldRun) -> ShouldRun {
- run.path("src/tools/rustfmt")
- }
-
- fn make_run(run: RunConfig) {
- run.builder.ensure(Rustfmt {
- stage: run.builder.top_stage,
- host: run.target,
- });
- }
-
- /// Runs `cargo test` for rustfmt.
- fn run(self, builder: &Builder) {
- let build = builder.build;
- let stage = self.stage;
- let host = self.host;
- let compiler = builder.compiler(stage, host);
-
- builder.ensure(tool::Rustfmt { compiler, target: self.host });
- let mut cargo = tool::prepare_tool_cargo(builder,
- compiler,
- host,
- "test",
- "src/tools/rustfmt");
-
- // Don't build tests dynamically, just a pain to work with
- cargo.env("RUSTC_NO_PREFER_DYNAMIC", "1");
-
- builder.add_rustc_lib_path(compiler, &mut cargo);
-
- if try_run(build, &mut cargo) {
- build.save_toolstate("rustfmt", ToolState::TestPass);
- }
- }
-}
-
-#[derive(Debug, Copy, Clone, PartialEq, Eq, Hash)]
-pub struct Miri {
- stage: u32,
- host: Interned<String>,
-}
-
-impl Step for Miri {
- type Output = ();
- const ONLY_HOSTS: bool = true;
- const DEFAULT: bool = true;
-
- fn should_run(run: ShouldRun) -> ShouldRun {
- let test_miri = run.builder.build.config.test_miri;
- run.path("src/tools/miri").default_condition(test_miri)
- }
-
- fn make_run(run: RunConfig) {
- run.builder.ensure(Miri {
- stage: run.builder.top_stage,
- host: run.target,
- });
- }
-
- /// Runs `cargo test` for miri.
- fn run(self, builder: &Builder) {
- let build = builder.build;
- let stage = self.stage;
- let host = self.host;
- let compiler = builder.compiler(stage, host);
-
- if let Some(miri) = builder.ensure(tool::Miri { compiler, target: self.host }) {
- let mut cargo = builder.cargo(compiler, Mode::Tool, host, "test");
- cargo.arg("--manifest-path").arg(build.src.join("src/tools/miri/Cargo.toml"));
-
- // Don't build tests dynamically, just a pain to work with
- cargo.env("RUSTC_NO_PREFER_DYNAMIC", "1");
- // miri tests need to know about the stage sysroot
- cargo.env("MIRI_SYSROOT", builder.sysroot(compiler));
- cargo.env("RUSTC_TEST_SUITE", builder.rustc(compiler));
- cargo.env("RUSTC_LIB_PATH", builder.rustc_libdir(compiler));
- cargo.env("MIRI_PATH", miri);
-
- builder.add_rustc_lib_path(compiler, &mut cargo);
-
- if try_run(build, &mut cargo) {
- build.save_toolstate("miri", ToolState::TestPass);
- }
- } else {
- eprintln!("failed to test miri: could not build");
- }
- }
-}
-
-#[derive(Debug, Copy, Clone, PartialEq, Eq, Hash)]
-pub struct Clippy {
- stage: u32,
- host: Interned<String>,
-}
-
-impl Step for Clippy {
- type Output = ();
- const ONLY_HOSTS: bool = true;
- const DEFAULT: bool = false;
-
- fn should_run(run: ShouldRun) -> ShouldRun {
- run.path("src/tools/clippy")
- }
-
- fn make_run(run: RunConfig) {
- run.builder.ensure(Clippy {
- stage: run.builder.top_stage,
- host: run.target,
- });
- }
-
- /// Runs `cargo test` for clippy.
- fn run(self, builder: &Builder) {
- let build = builder.build;
- let stage = self.stage;
- let host = self.host;
- let compiler = builder.compiler(stage, host);
-
- if let Some(clippy) = builder.ensure(tool::Clippy { compiler, target: self.host }) {
- let mut cargo = builder.cargo(compiler, Mode::Tool, host, "test");
- cargo.arg("--manifest-path").arg(build.src.join("src/tools/clippy/Cargo.toml"));
-
- // Don't build tests dynamically, just a pain to work with
- cargo.env("RUSTC_NO_PREFER_DYNAMIC", "1");
- // clippy tests need to know about the stage sysroot
- cargo.env("SYSROOT", builder.sysroot(compiler));
- cargo.env("RUSTC_TEST_SUITE", builder.rustc(compiler));
- cargo.env("RUSTC_LIB_PATH", builder.rustc_libdir(compiler));
- let host_libs = builder.stage_out(compiler, Mode::Tool).join(builder.cargo_dir());
- cargo.env("HOST_LIBS", host_libs);
- // clippy tests need to find the driver
- cargo.env("CLIPPY_DRIVER_PATH", clippy);
-
- builder.add_rustc_lib_path(compiler, &mut cargo);
-
- if try_run(build, &mut cargo) {
- build.save_toolstate("clippy-driver", ToolState::TestPass);
- }
- } else {
- eprintln!("failed to test clippy: could not build");
- }
- }
-}
-
-fn path_for_cargo(builder: &Builder, compiler: Compiler) -> OsString {
- // Configure PATH to find the right rustc. NB. we have to use PATH
- // and not RUSTC because the Cargo test suite has tests that will
- // fail if rustc is not spelled `rustc`.
- let path = builder.sysroot(compiler).join("bin");
- let old_path = env::var_os("PATH").unwrap_or_default();
- env::join_paths(iter::once(path).chain(env::split_paths(&old_path))).expect("")
-}
-
-#[derive(Debug, Copy, Clone, Hash, PartialEq, Eq)]
-pub struct RustdocJS {
- pub host: Interned<String>,
+pub struct Std {
pub target: Interned<String>,
}
-impl Step for RustdocJS {
+impl Step for Std {
type Output = ();
const DEFAULT: bool = true;
- const ONLY_HOSTS: bool = true;
fn should_run(run: ShouldRun) -> ShouldRun {
- run.path("src/test/rustdoc-js")
+ run.path("src/libstd").krate("std")
}
fn make_run(run: RunConfig) {
- run.builder.ensure(RustdocJS {
- host: run.host,
+ run.builder.ensure(Std {
target: run.target,
});
}
- fn run(self, builder: &Builder) {
- if let Some(ref nodejs) = builder.config.nodejs {
- let mut command = Command::new(nodejs);
- command.args(&["src/tools/rustdoc-js/tester.js", &*self.host]);
- builder.ensure(::doc::Std {
- target: self.target,
- stage: builder.top_stage,
- });
- builder.run(&mut command);
- } else {
- println!("No nodejs found, skipping \"src/test/rustdoc-js\" tests");
- }
- }
-}
-
-#[derive(Debug, Copy, Clone, PartialEq, Eq, Hash)]
-pub struct Tidy {
- host: Interned<String>,
-}
-
-impl Step for Tidy {
- type Output = ();
- const DEFAULT: bool = true;
- const ONLY_HOSTS: bool = true;
- const ONLY_BUILD: bool = true;
-
- /// Runs the `tidy` tool as compiled in `stage` by the `host` compiler.
- ///
- /// This tool in `src/tools` checks up on various bits and pieces of style and
- /// otherwise just implements a few lint-like checks that are specific to the
- /// compiler itself.
- fn run(self, builder: &Builder) {
- let build = builder.build;
- let host = self.host;
-
- let _folder = build.fold_output(|| "tidy");
- println!("tidy check ({})", host);
- let mut cmd = builder.tool_cmd(Tool::Tidy);
- cmd.arg(build.src.join("src"));
- if !build.config.vendor {
- cmd.arg("--no-vendor");
- }
- if build.config.quiet_tests {
- cmd.arg("--quiet");
- }
- try_run(build, &mut cmd);
- }
-
- fn should_run(run: ShouldRun) -> ShouldRun {
- run.path("src/tools/tidy")
- }
-
- fn make_run(run: RunConfig) {
- run.builder.ensure(Tidy {
- host: run.builder.build.build,
- });
- }
-}
-
-fn testdir(build: &Build, host: Interned<String>) -> PathBuf {
- build.out.join(host).join("test")
-}
-
-#[derive(Debug, Copy, Clone, PartialEq, Eq, Hash)]
-struct Test {
- path: &'static str,
- mode: &'static str,
- suite: &'static str,
-}
-
-static DEFAULT_COMPILETESTS: &[Test] = &[
- Test { path: "src/test/ui", mode: "ui", suite: "ui" },
- Test { path: "src/test/run-pass", mode: "run-pass", suite: "run-pass" },
- Test { path: "src/test/compile-fail", mode: "compile-fail", suite: "compile-fail" },
- Test { path: "src/test/parse-fail", mode: "parse-fail", suite: "parse-fail" },
- Test { path: "src/test/run-fail", mode: "run-fail", suite: "run-fail" },
- Test {
- path: "src/test/run-pass-valgrind",
- mode: "run-pass-valgrind",
- suite: "run-pass-valgrind"
- },
- Test { path: "src/test/mir-opt", mode: "mir-opt", suite: "mir-opt" },
- Test { path: "src/test/codegen", mode: "codegen", suite: "codegen" },
- Test { path: "src/test/codegen-units", mode: "codegen-units", suite: "codegen-units" },
- Test { path: "src/test/incremental", mode: "incremental", suite: "incremental" },
-
- // What this runs varies depending on the native platform being apple
- Test { path: "src/test/debuginfo", mode: "debuginfo-XXX", suite: "debuginfo" },
-];
-
-#[derive(Debug, Copy, Clone, PartialEq, Eq, Hash)]
-pub struct DefaultCompiletest {
- compiler: Compiler,
- target: Interned<String>,
- mode: &'static str,
- suite: &'static str,
-}
-
-impl Step for DefaultCompiletest {
- type Output = ();
- const DEFAULT: bool = true;
-
- fn should_run(mut run: ShouldRun) -> ShouldRun {
- for test in DEFAULT_COMPILETESTS {
- run = run.path(test.path);
- }
- run
- }
-
- fn make_run(run: RunConfig) {
- let compiler = run.builder.compiler(run.builder.top_stage, run.host);
-
- let test = run.path.map(|path| {
- DEFAULT_COMPILETESTS.iter().find(|&&test| {
- path.ends_with(test.path)
- }).unwrap_or_else(|| {
- panic!("make_run in compile test to receive test path, received {:?}", path);
- })
- });
-
- if let Some(test) = test {
- run.builder.ensure(DefaultCompiletest {
- compiler,
- target: run.target,
- mode: test.mode,
- suite: test.suite,
- });
- } else {
- for test in DEFAULT_COMPILETESTS {
- run.builder.ensure(DefaultCompiletest {
- compiler,
- target: run.target,
- mode: test.mode,
- suite: test.suite
- });
- }
- }
- }
-
- fn run(self, builder: &Builder) {
- builder.ensure(Compiletest {
- compiler: self.compiler,
- target: self.target,
- mode: self.mode,
- suite: self.suite,
- })
- }
-}
-
-// Also default, but host-only.
-static HOST_COMPILETESTS: &[Test] = &[
- Test { path: "src/test/ui-fulldeps", mode: "ui", suite: "ui-fulldeps" },
- Test { path: "src/test/run-pass-fulldeps", mode: "run-pass", suite: "run-pass-fulldeps" },
- Test { path: "src/test/run-fail-fulldeps", mode: "run-fail", suite: "run-fail-fulldeps" },
- Test {
- path: "src/test/compile-fail-fulldeps",
- mode: "compile-fail",
- suite: "compile-fail-fulldeps",
- },
- Test {
- path: "src/test/incremental-fulldeps",
- mode: "incremental",
- suite: "incremental-fulldeps",
- },
- Test { path: "src/test/run-make", mode: "run-make", suite: "run-make" },
- Test { path: "src/test/rustdoc", mode: "rustdoc", suite: "rustdoc" },
-
- Test { path: "src/test/pretty", mode: "pretty", suite: "pretty" },
- Test { path: "src/test/run-pass/pretty", mode: "pretty", suite: "run-pass" },
- Test { path: "src/test/run-fail/pretty", mode: "pretty", suite: "run-fail" },
- Test { path: "src/test/run-pass-valgrind/pretty", mode: "pretty", suite: "run-pass-valgrind" },
- Test { path: "src/test/run-pass-fulldeps/pretty", mode: "pretty", suite: "run-pass-fulldeps" },
- Test { path: "src/test/run-fail-fulldeps/pretty", mode: "pretty", suite: "run-fail-fulldeps" },
-];
-
-#[derive(Debug, Copy, Clone, PartialEq, Eq, Hash)]
-pub struct HostCompiletest {
- compiler: Compiler,
- target: Interned<String>,
- mode: &'static str,
- suite: &'static str,
-}
-
-impl Step for HostCompiletest {
- type Output = ();
- const DEFAULT: bool = true;
- const ONLY_HOSTS: bool = true;
-
- fn should_run(mut run: ShouldRun) -> ShouldRun {
- for test in HOST_COMPILETESTS {
- run = run.path(test.path);
- }
- run
- }
-
- fn make_run(run: RunConfig) {
- let compiler = run.builder.compiler(run.builder.top_stage, run.host);
-
- let test = run.path.map(|path| {
- HOST_COMPILETESTS.iter().find(|&&test| {
- path.ends_with(test.path)
- }).unwrap_or_else(|| {
- panic!("make_run in compile test to receive test path, received {:?}", path);
- })
- });
-
- if let Some(test) = test {
- run.builder.ensure(HostCompiletest {
- compiler,
- target: run.target,
- mode: test.mode,
- suite: test.suite,
- });
- } else {
- for test in HOST_COMPILETESTS {
- if test.mode == "pretty" {
- continue;
- }
- run.builder.ensure(HostCompiletest {
- compiler,
- target: run.target,
- mode: test.mode,
- suite: test.suite
- });
- }
- }
- }
-
- fn run(self, builder: &Builder) {
- builder.ensure(Compiletest {
- compiler: self.compiler,
- target: self.target,
- mode: self.mode,
- suite: self.suite,
- })
- }
-}
-
-#[derive(Debug, Copy, Clone, PartialEq, Eq, Hash)]
-struct Compiletest {
- compiler: Compiler,
- target: Interned<String>,
- mode: &'static str,
- suite: &'static str,
-}
-
-impl Step for Compiletest {
- type Output = ();
-
- fn should_run(run: ShouldRun) -> ShouldRun {
- run.never()
- }
-
- /// Executes the `compiletest` tool to run a suite of tests.
- ///
- /// Compiles all tests with `compiler` for `target` with the specified
- /// compiletest `mode` and `suite` arguments. For example `mode` can be
- /// "run-pass" or `suite` can be something like `debuginfo`.
fn run(self, builder: &Builder) {
let build = builder.build;
- let compiler = self.compiler;
let target = self.target;
- let mode = self.mode;
- let suite = self.suite;
-
- // Skip codegen tests if they aren't enabled in configuration.
- if !build.config.codegen_tests && suite == "codegen" {
- return;
- }
-
- if suite == "debuginfo" {
- // Skip debuginfo tests on MSVC
- if build.build.contains("msvc") {
- return;
- }
-
- if mode == "debuginfo-XXX" {
- return if build.build.contains("apple") {
- builder.ensure(Compiletest {
- mode: "debuginfo-lldb",
- ..self
- });
- } else {
- builder.ensure(Compiletest {
- mode: "debuginfo-gdb",
- ..self
- });
- };
- }
-
- builder.ensure(dist::DebuggerScripts {
- sysroot: builder.sysroot(compiler),
- host: target
- });
- }
-
- if suite.ends_with("fulldeps") ||
- // FIXME: Does pretty need librustc compiled? Note that there are
- // fulldeps test suites with mode = pretty as well.
- mode == "pretty" ||
- mode == "rustdoc" ||
- mode == "run-make" {
- builder.ensure(compile::Rustc { compiler, target });
- }
-
- builder.ensure(compile::Test { compiler, target });
- builder.ensure(native::TestHelpers { target });
- builder.ensure(RemoteCopyLibs { compiler, target });
-
- let _folder = build.fold_output(|| format!("test_{}", suite));
- println!("Check compiletest suite={} mode={} ({} -> {})",
- suite, mode, &compiler.host, target);
- let mut cmd = builder.tool_cmd(Tool::Compiletest);
-
- // compiletest currently has... a lot of arguments, so let's just pass all
- // of them!
-
- cmd.arg("--compile-lib-path").arg(builder.rustc_libdir(compiler));
- cmd.arg("--run-lib-path").arg(builder.sysroot_libdir(compiler, target));
- cmd.arg("--rustc-path").arg(builder.rustc(compiler));
-
- // Avoid depending on rustdoc when we don't need it.
- if mode == "rustdoc" || mode == "run-make" {
- cmd.arg("--rustdoc-path").arg(builder.rustdoc(compiler.host));
- }
-
- cmd.arg("--src-base").arg(build.src.join("src/test").join(suite));
- cmd.arg("--build-base").arg(testdir(build, compiler.host).join(suite));
- cmd.arg("--stage-id").arg(format!("stage{}-{}", compiler.stage, target));
- cmd.arg("--mode").arg(mode);
- cmd.arg("--target").arg(target);
- cmd.arg("--host").arg(&*compiler.host);
- cmd.arg("--llvm-filecheck").arg(build.llvm_filecheck(build.build));
-
- if let Some(ref nodejs) = build.config.nodejs {
- cmd.arg("--nodejs").arg(nodejs);
- }
-
- let mut flags = vec!["-Crpath".to_string()];
- if build.config.rust_optimize_tests {
- flags.push("-O".to_string());
- }
- if build.config.rust_debuginfo_tests {
- flags.push("-g".to_string());
- }
- flags.push("-Zmiri -Zunstable-options".to_string());
- flags.push(build.config.cmd.rustc_args().join(" "));
-
- if let Some(linker) = build.linker(target) {
- cmd.arg("--linker").arg(linker);
- }
-
- let hostflags = flags.clone();
- cmd.arg("--host-rustcflags").arg(hostflags.join(" "));
-
- let mut targetflags = flags.clone();
- targetflags.push(format!("-Lnative={}",
- build.test_helpers_out(target).display()));
- cmd.arg("--target-rustcflags").arg(targetflags.join(" "));
-
- cmd.arg("--docck-python").arg(build.python());
-
- if build.build.ends_with("apple-darwin") {
- // Force /usr/bin/python on macOS for LLDB tests because we're loading the
- // LLDB plugin's compiled module which only works with the system python
- // (namely not Homebrew-installed python)
- cmd.arg("--lldb-python").arg("/usr/bin/python");
- } else {
- cmd.arg("--lldb-python").arg(build.python());
- }
-
- if let Some(ref gdb) = build.config.gdb {
- cmd.arg("--gdb").arg(gdb);
- }
- if let Some(ref vers) = build.lldb_version {
- cmd.arg("--lldb-version").arg(vers);
- }
- if let Some(ref dir) = build.lldb_python_dir {
- cmd.arg("--lldb-python-dir").arg(dir);
- }
-
- cmd.args(&build.config.cmd.test_args());
-
- if build.is_verbose() {
- cmd.arg("--verbose");
- }
-
- if build.config.quiet_tests {
- cmd.arg("--quiet");
- }
-
- if build.config.llvm_enabled {
- let llvm_config = build.llvm_config(target);
- let llvm_version = output(Command::new(&llvm_config).arg("--version"));
- cmd.arg("--llvm-version").arg(llvm_version);
- if !build.is_rust_llvm(target) {
- cmd.arg("--system-llvm");
- }
-
- // Only pass correct values for these flags for the `run-make` suite as it
- // requires that a C++ compiler was configured which isn't always the case.
- if suite == "run-make" {
- let llvm_components = output(Command::new(&llvm_config).arg("--components"));
- let llvm_cxxflags = output(Command::new(&llvm_config).arg("--cxxflags"));
- cmd.arg("--cc").arg(build.cc(target))
- .arg("--cxx").arg(build.cxx(target).unwrap())
- .arg("--cflags").arg(build.cflags(target).join(" "))
- .arg("--llvm-components").arg(llvm_components.trim())
- .arg("--llvm-cxxflags").arg(llvm_cxxflags.trim());
- if let Some(ar) = build.ar(target) {
- cmd.arg("--ar").arg(ar);
- }
- }
- }
- if suite == "run-make" && !build.config.llvm_enabled {
- println!("Ignoring run-make test suite as they generally dont work without LLVM");
- return;
- }
+ let compiler = builder.compiler(0, build.build);
- if suite != "run-make" {
- cmd.arg("--cc").arg("")
- .arg("--cxx").arg("")
- .arg("--cflags").arg("")
- .arg("--llvm-components").arg("")
- .arg("--llvm-cxxflags").arg("");
- }
+ let _folder = build.fold_output(|| format!("stage{}-std", compiler.stage));
+ println!("Checking std artifacts ({} -> {})", &compiler.host, target);
- if build.remote_tested(target) {
- cmd.arg("--remote-test-client").arg(builder.tool_exe(Tool::RemoteTestClient));
- }
-
- // Running a C compiler on MSVC requires a few env vars to be set, to be
- // sure to set them here.
- //
- // Note that if we encounter `PATH` we make sure to append to our own `PATH`
- // rather than stomp over it.
- if target.contains("msvc") {
- for &(ref k, ref v) in build.cc[&target].env() {
- if k != "PATH" {
- cmd.env(k, v);
- }
- }
- }
- cmd.env("RUSTC_BOOTSTRAP", "1");
- build.add_rust_test_threads(&mut cmd);
-
- if build.config.sanitizers {
- cmd.env("SANITIZER_SUPPORT", "1");
- }
-
- if build.config.profiler {
- cmd.env("PROFILER_SUPPORT", "1");
- }
-
- cmd.arg("--adb-path").arg("adb");
- cmd.arg("--adb-test-dir").arg(ADB_TEST_DIR);
- if target.contains("android") {
- // Assume that cc for this target comes from the android sysroot
- cmd.arg("--android-cross-path")
- .arg(build.cc(target).parent().unwrap().parent().unwrap());
- } else {
- cmd.arg("--android-cross-path").arg("");
- }
-
- build.ci_env.force_coloring_in_ci(&mut cmd);
-
- let _time = util::timeit();
- try_run(build, &mut cmd);
+ let out_dir = build.stage_out(compiler, Mode::Libstd);
+ build.clear_if_dirty(&out_dir, &builder.rustc(compiler));
+ let mut cargo = builder.cargo(compiler, Mode::Libstd, target, "check");
+ std_cargo(build, &compiler, target, &mut cargo);
+ run_cargo(build,
+ &mut cargo,
+ &libstd_stamp(build, compiler, target),
+ true);
+ let libdir = builder.sysroot_libdir(compiler, target);
+ add_to_sysroot(&libdir, &libstd_stamp(build, compiler, target));
}
}
#[derive(Debug, Copy, Clone, PartialEq, Eq, Hash)]
-pub struct Docs {
- compiler: Compiler,
+pub struct Rustc {
+ pub target: Interned<String>,
}
-impl Step for Docs {
+impl Step for Rustc {
type Output = ();
- const DEFAULT: bool = true;
const ONLY_HOSTS: bool = true;
-
- fn should_run(run: ShouldRun) -> ShouldRun {
- run.path("src/doc")
- }
-
- fn make_run(run: RunConfig) {
- run.builder.ensure(Docs {
- compiler: run.builder.compiler(run.builder.top_stage, run.host),
- });
- }
-
- /// Run `rustdoc --test` for all documentation in `src/doc`.
- ///
- /// This will run all tests in our markdown documentation (e.g. the book)
- /// located in `src/doc`. The `rustdoc` that's run is the one that sits next to
- /// `compiler`.
- fn run(self, builder: &Builder) {
- let build = builder.build;
- let compiler = self.compiler;
-
- builder.ensure(compile::Test { compiler, target: compiler.host });
-
- // Do a breadth-first traversal of the `src/doc` directory and just run
- // tests for all files that end in `*.md`
- let mut stack = vec![build.src.join("src/doc")];
- let _time = util::timeit();
- let _folder = build.fold_output(|| "test_docs");
-
- while let Some(p) = stack.pop() {
- if p.is_dir() {
- stack.extend(t!(p.read_dir()).map(|p| t!(p).path()));
- continue
- }
-
- if p.extension().and_then(|s| s.to_str()) != Some("md") {
- continue;
- }
-
- // The nostarch directory in the book is for no starch, and so isn't
- // guaranteed to build. We don't care if it doesn't build, so skip it.
- if p.to_str().map_or(false, |p| p.contains("nostarch")) {
- continue;
- }
-
- markdown_test(builder, compiler, &p);
- }
- }
-}
-
-#[derive(Debug, Copy, Clone, PartialEq, Eq, Hash)]
-pub struct ErrorIndex {
- compiler: Compiler,
-}
-
-impl Step for ErrorIndex {
- type Output = ();
const DEFAULT: bool = true;
- const ONLY_HOSTS: bool = true;
fn should_run(run: ShouldRun) -> ShouldRun {
- run.path("src/tools/error_index_generator")
+ run.path("src/librustc").krate("rustc-main")
}
fn make_run(run: RunConfig) {
- run.builder.ensure(ErrorIndex {
- compiler: run.builder.compiler(run.builder.top_stage, run.host),
- });
- }
-
- /// Run the error index generator tool to execute the tests located in the error
- /// index.
- ///
- /// The `error_index_generator` tool lives in `src/tools` and is used to
- /// generate a markdown file from the error indexes of the code base which is
- /// then passed to `rustdoc --test`.
- fn run(self, builder: &Builder) {
- let build = builder.build;
- let compiler = self.compiler;
-
- builder.ensure(compile::Std { compiler, target: compiler.host });
-
- let _folder = build.fold_output(|| "test_error_index");
- println!("Testing error-index stage{}", compiler.stage);
-
- let dir = testdir(build, compiler.host);
- t!(fs::create_dir_all(&dir));
- let output = dir.join("error-index.md");
-
- let _time = util::timeit();
- build.run(builder.tool_cmd(Tool::ErrorIndex)
- .arg("markdown")
- .arg(&output)
- .env("CFG_BUILD", &build.build)
- .env("RUSTC_ERROR_METADATA_DST", build.extended_error_dir()));
-
- markdown_test(builder, compiler, &output);
- }
-}
-
-fn markdown_test(builder: &Builder, compiler: Compiler, markdown: &Path) {
- let build = builder.build;
- let mut file = t!(File::open(markdown));
- let mut contents = String::new();
- t!(file.read_to_string(&mut contents));
- if !contents.contains("```") {
- return;
- }
-
- println!("doc tests for: {}", markdown.display());
- let mut cmd = builder.rustdoc_cmd(compiler.host);
- build.add_rust_test_threads(&mut cmd);
- cmd.arg("--test");
- cmd.arg(markdown);
- cmd.env("RUSTC_BOOTSTRAP", "1");
-
- let test_args = build.config.cmd.test_args().join(" ");
- cmd.arg("--test-args").arg(test_args);
-
- if build.config.quiet_tests {
- try_run_quiet(build, &mut cmd);
- } else {
- try_run(build, &mut cmd);
- }
-}
-
-#[derive(Debug, Copy, Clone, PartialEq, Eq, Hash)]
-pub struct CrateLibrustc {
- compiler: Compiler,
- target: Interned<String>,
- test_kind: TestKind,
- krate: Option<Interned<String>>,
-}
-
-impl Step for CrateLibrustc {
- type Output = ();
- const DEFAULT: bool = true;
- const ONLY_HOSTS: bool = true;
-
- fn should_run(run: ShouldRun) -> ShouldRun {
- run.krate("rustc-main")
- }
-
- fn make_run(run: RunConfig) {
- let builder = run.builder;
- let compiler = builder.compiler(builder.top_stage, run.host);
-
- let make = |name: Option<Interned<String>>| {
- let test_kind = if builder.kind == Kind::Test {
- TestKind::Test
- } else if builder.kind == Kind::Bench {
- TestKind::Bench
- } else {
- panic!("unexpected builder.kind in crate: {:?}", builder.kind);
- };
-
- builder.ensure(CrateLibrustc {
- compiler,
- target: run.target,
- test_kind,
- krate: name,
- });
- };
-
- if let Some(path) = run.path {
- for (name, krate_path) in builder.crates("rustc-main") {
- if path.ends_with(krate_path) {
- make(Some(name));
- }
- }
- } else {
- make(None);
- }
- }
-
-
- fn run(self, builder: &Builder) {
- builder.ensure(Crate {
- compiler: self.compiler,
- target: self.target,
- mode: Mode::Librustc,
- test_kind: self.test_kind,
- krate: self.krate,
+ run.builder.ensure(Rustc {
+ target: run.target,
});
}
-}
-
-#[derive(Debug, Copy, Clone, PartialEq, Eq, Hash)]
-pub struct Crate {
- compiler: Compiler,
- target: Interned<String>,
- mode: Mode,
- test_kind: TestKind,
- krate: Option<Interned<String>>,
-}
-
-impl Step for Crate {
- type Output = ();
- const DEFAULT: bool = true;
-
- fn should_run(run: ShouldRun) -> ShouldRun {
- run.krate("std").krate("test")
- }
- fn make_run(run: RunConfig) {
- let builder = run.builder;
- let compiler = builder.compiler(builder.top_stage, run.host);
-
- let make = |mode: Mode, name: Option<Interned<String>>| {
- let test_kind = if builder.kind == Kind::Test {
- TestKind::Test
- } else if builder.kind == Kind::Bench {
- TestKind::Bench
- } else {
- panic!("unexpected builder.kind in crate: {:?}", builder.kind);
- };
-
- builder.ensure(Crate {
- compiler,
- target: run.target,
- mode,
- test_kind,
- krate: name,
- });
- };
-
- if let Some(path) = run.path {
- for (name, krate_path) in builder.crates("std") {
- if path.ends_with(krate_path) {
- make(Mode::Libstd, Some(name));
- }
- }
- for (name, krate_path) in builder.crates("test") {
- if path.ends_with(krate_path) {
- make(Mode::Libtest, Some(name));
- }
- }
- } else {
- make(Mode::Libstd, None);
- make(Mode::Libtest, None);
- }
- }
-
- /// Run all unit tests plus documentation tests for an entire crate DAG defined
- /// by a `Cargo.toml`
- ///
- /// This is what runs tests for crates like the standard library, compiler, etc.
- /// It essentially is the driver for running `cargo test`.
+ /// Build the compiler.
///
- /// Currently this runs all tests for a DAG by passing a bunch of `-p foo`
- /// arguments, and those arguments are discovered from `cargo metadata`.
+ /// This will build the compiler for a particular stage of the build using
+ /// the `compiler` targeting the `target` architecture. The artifacts
+ /// created will also be linked into the sysroot directory.
fn run(self, builder: &Builder) {
let build = builder.build;
- let compiler = self.compiler;
+ let compiler = builder.compiler(0, build.build);
let target = self.target;
- let mode = self.mode;
- let test_kind = self.test_kind;
- let krate = self.krate;
-
- builder.ensure(compile::Test { compiler, target });
- builder.ensure(RemoteCopyLibs { compiler, target });
-
- // If we're not doing a full bootstrap but we're testing a stage2 version of
- // libstd, then what we're actually testing is the libstd produced in
- // stage1. Reflect that here by updating the compiler that we're working
- // with automatically.
- let compiler = if build.force_use_stage1(compiler, target) {
- builder.compiler(1, compiler.host)
- } else {
- compiler.clone()
- };
-
- let mut cargo = builder.cargo(compiler, mode, target, test_kind.subcommand());
- let (name, root) = match mode {
- Mode::Libstd => {
- compile::std_cargo(build, &compiler, target, &mut cargo);
- ("libstd", "std")
- }
- Mode::Libtest => {
- compile::test_cargo(build, &compiler, target, &mut cargo);
- ("libtest", "test")
- }
- Mode::Librustc => {
- builder.ensure(compile::Rustc { compiler, target });
- compile::rustc_cargo(build, target, &mut cargo);
- ("librustc", "rustc-main")
- }
- _ => panic!("can only test libraries"),
- };
- let root = INTERNER.intern_string(String::from(root));
- let _folder = build.fold_output(|| {
- format!("{}_stage{}-{}", test_kind.subcommand(), compiler.stage, name)
- });
- println!("{} {} stage{} ({} -> {})", test_kind, name, compiler.stage,
- &compiler.host, target);
-
- // Build up the base `cargo test` command.
- //
- // Pass in some standard flags then iterate over the graph we've discovered
- // in `cargo metadata` with the maps above and figure out what `-p`
- // arguments need to get passed.
- if test_kind.subcommand() == "test" && !build.fail_fast {
- cargo.arg("--no-fail-fast");
- }
-
- match krate {
- Some(krate) => {
- cargo.arg("-p").arg(krate);
- }
- None => {
- let mut visited = HashSet::new();
- let mut next = vec![root];
- while let Some(name) = next.pop() {
- // Right now jemalloc and the sanitizer crates are
- // target-specific crate in the sense that it's not present
- // on all platforms. Custom skip it here for now, but if we
- // add more this probably wants to get more generalized.
- //
- // Also skip `build_helper` as it's not compiled normally
- // for target during the bootstrap and it's just meant to be
- // a helper crate, not tested. If it leaks through then it
- // ends up messing with various mtime calculations and such.
- if !name.contains("jemalloc") &&
- *name != *"build_helper" &&
- !(name.starts_with("rustc_") && name.ends_with("san")) &&
- name != "dlmalloc" {
- cargo.arg("-p").arg(&format!("{}:0.0.0", name));
- }
- for dep in build.crates[&name].deps.iter() {
- if visited.insert(dep) {
- next.push(*dep);
- }
- }
- }
- }
- }
-
- // The tests are going to run with the *target* libraries, so we need to
- // ensure that those libraries show up in the LD_LIBRARY_PATH equivalent.
- //
- // Note that to run the compiler we need to run with the *host* libraries,
- // but our wrapper scripts arrange for that to be the case anyway.
- let mut dylib_path = dylib_path();
- dylib_path.insert(0, PathBuf::from(&*builder.sysroot_libdir(compiler, target)));
- cargo.env(dylib_path_var(), env::join_paths(&dylib_path).unwrap());
- cargo.arg("--");
- cargo.args(&build.config.cmd.test_args());
+ let _folder = build.fold_output(|| format!("stage{}-rustc", compiler.stage));
+ println!("Checking compiler artifacts ({} -> {})", &compiler.host, target);
- if build.config.quiet_tests {
- cargo.arg("--quiet");
- }
+ let stage_out = builder.stage_out(compiler, Mode::Librustc);
+ build.clear_if_dirty(&stage_out, &libstd_stamp(build, compiler, target));
+ build.clear_if_dirty(&stage_out, &libtest_stamp(build, compiler, target));
- let _time = util::timeit();
-
- if target.contains("emscripten") {
- cargo.env(format!("CARGO_TARGET_{}_RUNNER", envify(&target)),
- build.config.nodejs.as_ref().expect("nodejs not configured"));
- } else if target.starts_with("wasm32") {
- // On the wasm32-unknown-unknown target we're using LTO which is
- // incompatible with `-C prefer-dynamic`, so disable that here
- cargo.env("RUSTC_NO_PREFER_DYNAMIC", "1");
-
- let node = build.config.nodejs.as_ref()
- .expect("nodejs not configured");
- let runner = format!("{} {}/src/etc/wasm32-shim.js",
- node.display(),
- build.src.display());
- cargo.env(format!("CARGO_TARGET_{}_RUNNER", envify(&target)), &runner);
- } else if build.remote_tested(target) {
- cargo.env(format!("CARGO_TARGET_{}_RUNNER", envify(&target)),
- format!("{} run",
- builder.tool_exe(Tool::RemoteTestClient).display()));
- }
- try_run(build, &mut cargo);
+ let mut cargo = builder.cargo(compiler, Mode::Librustc, target, "check");
+ rustc_cargo(build, target, &mut cargo);
+ run_cargo(build,
+ &mut cargo,
+ &librustc_stamp(build, compiler, target),
+ true);
+ let libdir = builder.sysroot_libdir(compiler, target);
+ add_to_sysroot(&libdir, &librustc_stamp(build, compiler, target));
}
}
#[derive(Debug, Copy, Clone, PartialEq, Eq, Hash)]
-pub struct Rustdoc {
- host: Interned<String>,
- test_kind: TestKind,
+pub struct Test {
+ pub target: Interned<String>,
}
-impl Step for Rustdoc {
+impl Step for Test {
type Output = ();
const DEFAULT: bool = true;
- const ONLY_HOSTS: bool = true;
fn should_run(run: ShouldRun) -> ShouldRun {
- run.path("src/librustdoc").path("src/tools/rustdoc")
+ run.path("src/libtest").krate("test")
}
fn make_run(run: RunConfig) {
- let builder = run.builder;
-
- let test_kind = if builder.kind == Kind::Test {
- TestKind::Test
- } else if builder.kind == Kind::Bench {
- TestKind::Bench
- } else {
- panic!("unexpected builder.kind in crate: {:?}", builder.kind);
- };
-
- builder.ensure(Rustdoc {
- host: run.host,
- test_kind,
+ run.builder.ensure(Test {
+ target: run.target,
});
}
fn run(self, builder: &Builder) {
let build = builder.build;
- let test_kind = self.test_kind;
-
- let compiler = builder.compiler(builder.top_stage, self.host);
- let target = compiler.host;
-
- let mut cargo = tool::prepare_tool_cargo(builder,
- compiler,
- target,
- test_kind.subcommand(),
- "src/tools/rustdoc");
- let _folder = build.fold_output(|| {
- format!("{}_stage{}-rustdoc", test_kind.subcommand(), compiler.stage)
- });
- println!("{} rustdoc stage{} ({} -> {})", test_kind, compiler.stage,
- &compiler.host, target);
-
- if test_kind.subcommand() == "test" && !build.fail_fast {
- cargo.arg("--no-fail-fast");
- }
-
- cargo.arg("-p").arg("rustdoc:0.0.0");
-
- cargo.arg("--");
- cargo.args(&build.config.cmd.test_args());
-
- if build.config.quiet_tests {
- cargo.arg("--quiet");
- }
-
- let _time = util::timeit();
+ let target = self.target;
+ let compiler = builder.compiler(0, build.build);
- try_run(build, &mut cargo);
+ let _folder = build.fold_output(|| format!("stage{}-test", compiler.stage));
+ println!("Checking test artifacts ({} -> {})", &compiler.host, target);
+ let out_dir = build.stage_out(compiler, Mode::Libtest);
+ build.clear_if_dirty(&out_dir, &libstd_stamp(build, compiler, target));
+ let mut cargo = builder.cargo(compiler, Mode::Libtest, target, "check");
+ test_cargo(build, &compiler, target, &mut cargo);
+ run_cargo(build,
+ &mut cargo,
+ &libtest_stamp(build, compiler, target),
+ true);
+ let libdir = builder.sysroot_libdir(compiler, target);
+ add_to_sysroot(&libdir, &libtest_stamp(build, compiler, target));
}
}
-fn envify(s: &str) -> String {
- s.chars().map(|c| {
- match c {
- '-' => '_',
- c => c,
- }
- }).flat_map(|c| c.to_uppercase()).collect()
+/// Cargo's output path for the standard library in a given stage, compiled
+/// by a particular compiler for the specified target.
+pub fn libstd_stamp(build: &Build, compiler: Compiler, target: Interned<String>) -> PathBuf {
+ build.cargo_out(compiler, Mode::Libstd, target).join(".libstd-check.stamp")
}
-/// Some test suites are run inside emulators or on remote devices, and most
-/// of our test binaries are linked dynamically which means we need to ship
-/// the standard library and such to the emulator ahead of time. This step
-/// represents this and is a dependency of all test suites.
-///
-/// Most of the time this is a noop. For some steps such as shipping data to
-/// QEMU we have to build our own tools so we've got conditional dependencies
-/// on those programs as well. Note that the remote test client is built for
-/// the build target (us) and the server is built for the target.
-#[derive(Debug, Copy, Clone, PartialEq, Eq, Hash)]
-pub struct RemoteCopyLibs {
- compiler: Compiler,
- target: Interned<String>,
+/// Cargo's output path for libtest in a given stage, compiled by a particular
+/// compiler for the specified target.
+pub fn libtest_stamp(build: &Build, compiler: Compiler, target: Interned<String>) -> PathBuf {
+ build.cargo_out(compiler, Mode::Libtest, target).join(".libtest-check.stamp")
}
-impl Step for RemoteCopyLibs {
- type Output = ();
-
- fn should_run(run: ShouldRun) -> ShouldRun {
- run.never()
- }
-
- fn run(self, builder: &Builder) {
- let build = builder.build;
- let compiler = self.compiler;
- let target = self.target;
- if !build.remote_tested(target) {
- return
- }
-
- builder.ensure(compile::Test { compiler, target });
-
- println!("REMOTE copy libs to emulator ({})", target);
- t!(fs::create_dir_all(build.out.join("tmp")));
-
- let server = builder.ensure(tool::RemoteTestServer { compiler, target });
-
- // Spawn the emulator and wait for it to come online
- let tool = builder.tool_exe(Tool::RemoteTestClient);
- let mut cmd = Command::new(&tool);
- cmd.arg("spawn-emulator")
- .arg(target)
- .arg(&server)
- .arg(build.out.join("tmp"));
- if let Some(rootfs) = build.qemu_rootfs(target) {
- cmd.arg(rootfs);
- }
- build.run(&mut cmd);
-
- // Push all our dylibs to the emulator
- for f in t!(builder.sysroot_libdir(compiler, target).read_dir()) {
- let f = t!(f);
- let name = f.file_name().into_string().unwrap();
- if util::is_dylib(&name) {
- build.run(Command::new(&tool)
- .arg("push")
- .arg(f.path()));
- }
- }
- }
+/// Cargo's output path for librustc in a given stage, compiled by a particular
+/// compiler for the specified target.
+pub fn librustc_stamp(build: &Build, compiler: Compiler, target: Interned<String>) -> PathBuf {
+ build.cargo_out(compiler, Mode::Librustc, target).join(".librustc-check.stamp")
}
-#[derive(Debug, Copy, Clone, PartialEq, Eq, Hash)]
-pub struct Distcheck;
-
-impl Step for Distcheck {
- type Output = ();
- const ONLY_BUILD: bool = true;
-
- fn should_run(run: ShouldRun) -> ShouldRun {
- run.path("distcheck")
- }
-
- fn make_run(run: RunConfig) {
- run.builder.ensure(Distcheck);
- }
-
- /// Run "distcheck", a 'make check' from a tarball
- fn run(self, builder: &Builder) {
- let build = builder.build;
-
- println!("Distcheck");
- let dir = build.out.join("tmp").join("distcheck");
- let _ = fs::remove_dir_all(&dir);
- t!(fs::create_dir_all(&dir));
-
- // Guarantee that these are built before we begin running.
- builder.ensure(dist::PlainSourceTarball);
- builder.ensure(dist::Src);
-
- let mut cmd = Command::new("tar");
- cmd.arg("-xzf")
- .arg(builder.ensure(dist::PlainSourceTarball))
- .arg("--strip-components=1")
- .current_dir(&dir);
- build.run(&mut cmd);
- build.run(Command::new("./configure")
- .args(&build.config.configure_args)
- .arg("--enable-vendor")
- .current_dir(&dir));
- build.run(Command::new(build_helper::make(&build.build))
- .arg("check")
- .current_dir(&dir));
-
- // Now make sure that rust-src has all of libstd's dependencies
- println!("Distcheck rust-src");
- let dir = build.out.join("tmp").join("distcheck-src");
- let _ = fs::remove_dir_all(&dir);
- t!(fs::create_dir_all(&dir));
-
- let mut cmd = Command::new("tar");
- cmd.arg("-xzf")
- .arg(builder.ensure(dist::Src))
- .arg("--strip-components=1")
- .current_dir(&dir);
- build.run(&mut cmd);
-
- let toml = dir.join("rust-src/lib/rustlib/src/rust/src/libstd/Cargo.toml");
- build.run(Command::new(&build.initial_cargo)
- .arg("generate-lockfile")
- .arg("--manifest-path")
- .arg(&toml)
- .current_dir(&dir));
- }
-}
-
-#[derive(Debug, Copy, Clone, PartialEq, Eq, Hash)]
-pub struct Bootstrap;
-
-impl Step for Bootstrap {
- type Output = ();
- const DEFAULT: bool = true;
- const ONLY_HOSTS: bool = true;
- const ONLY_BUILD: bool = true;
-
- /// Test the build system itself
- fn run(self, builder: &Builder) {
- let build = builder.build;
- let mut cmd = Command::new(&build.initial_cargo);
- cmd.arg("test")
- .current_dir(build.src.join("src/bootstrap"))
- .env("CARGO_TARGET_DIR", build.out.join("bootstrap"))
- .env("RUSTC_BOOTSTRAP", "1")
- .env("RUSTC", &build.initial_rustc);
- if !build.fail_fast {
- cmd.arg("--no-fail-fast");
- }
- cmd.arg("--").args(&build.config.cmd.test_args());
- try_run(build, &mut cmd);
- }
-
- fn should_run(run: ShouldRun) -> ShouldRun {
- run.path("src/bootstrap")
- }
-
- fn make_run(run: RunConfig) {
- run.builder.ensure(Bootstrap);
- }
-}
std_cargo(build, &compiler, target, &mut cargo);
run_cargo(build,
&mut cargo,
- &libstd_stamp(build, compiler, target));
+ &libstd_stamp(build, compiler, target),
+ false);
builder.ensure(StdLink {
compiler: builder.compiler(compiler.stage, build.build),
test_cargo(build, &compiler, target, &mut cargo);
run_cargo(build,
&mut cargo,
- &libtest_stamp(build, compiler, target));
+ &libtest_stamp(build, compiler, target),
+ false);
builder.ensure(TestLink {
compiler: builder.compiler(compiler.stage, build.build),
rustc_cargo(build, target, &mut cargo);
run_cargo(build,
&mut cargo,
- &librustc_stamp(build, compiler, target));
+ &librustc_stamp(build, compiler, target),
+ false);
builder.ensure(RustcLink {
compiler: builder.compiler(compiler.stage, build.build),
///
/// For a particular stage this will link the file listed in `stamp` into the
/// `sysroot_dst` provided.
-fn add_to_sysroot(sysroot_dst: &Path, stamp: &Path) {
+pub fn add_to_sysroot(sysroot_dst: &Path, stamp: &Path) {
t!(fs::create_dir_all(&sysroot_dst));
for path in read_stamp_file(stamp) {
copy(&path, &sysroot_dst.join(path.file_name().unwrap()));
}
}
-fn run_cargo(build: &Build, cargo: &mut Command, stamp: &Path) {
+pub fn run_cargo(build: &Build, cargo: &mut Command, stamp: &Path, is_check: bool) {
// Instruct Cargo to give us json messages on stdout, critically leaving
// stderr as piped so we can get those pretty colors.
cargo.arg("--message-format").arg("json")
// Skip files like executables
if !filename.ends_with(".rlib") &&
!filename.ends_with(".lib") &&
- !is_dylib(&filename) {
+ !is_dylib(&filename) &&
+ !(is_check && filename.ends_with(".rmeta")) {
continue
}
Build {
paths: Vec<PathBuf>,
},
+ Check {
+ paths: Vec<PathBuf>,
+ },
Doc {
paths: Vec<PathBuf>,
},
Subcommands:
build Compile either the compiler or libraries
+ check Compile either the compiler or libraries, using cargo check
test Build and run some test suites
bench Build and run some benchmarks
doc Build documentation
// there on out.
let subcommand = args.iter().find(|&s|
(s == "build")
+ || (s == "check")
|| (s == "test")
|| (s == "bench")
|| (s == "doc")
arguments would), and then use the compiler built in stage 0 to build
src/libtest and its dependencies.
Once this is done, build/$ARCH/stage1 contains a usable compiler.");
+ }
+ "check" => {
+ subcommand_help.push_str("\n
+Arguments:
+ This subcommand accepts a number of paths to directories to the crates
+ and/or artifacts to compile. For example:
+
+ ./x.py check src/libcore
+ ./x.py check src/libcore src/libproc_macro
+
+ If no arguments are passed then the complete artifacts are compiled: std, test, and rustc. Note
+ also that since we use `cargo check`, by default this will automatically enable incremental
+ compilation, so there's no need to pass it separately, though it won't hurt. We also completely
+ ignore the stage passed, as there's no way to compile in non-stage 0 without actually building
+ the compiler.");
}
"test" => {
subcommand_help.push_str("\n
"build" => {
Subcommand::Build { paths: paths }
}
+ "check" => {
+ Subcommand::Check { paths: paths }
+ }
"test" => {
Subcommand::Test {
paths,
mod cc_detect;
mod channel;
mod check;
+mod test;
mod clean;
mod compile;
mod metadata;
out
}
- /// Get the directory for incremental by-products when using the
- /// given compiler.
- fn incremental_dir(&self, compiler: Compiler) -> PathBuf {
- self.out.join(&*compiler.host).join(format!("stage{}-incremental", compiler.stage))
- }
-
/// Returns the root directory for all output generated in a particular
/// stage when running with a particular host compiler.
///
--- /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.
+
+//! Implementation of the test-related targets of the build system.
+//!
+//! This file implements the various regression test suites that we execute on
+//! our CI.
+
+use std::collections::HashSet;
+use std::env;
+use std::ffi::OsString;
+use std::iter;
+use std::fmt;
+use std::fs::{self, File};
+use std::path::{PathBuf, Path};
+use std::process::Command;
+use std::io::Read;
+
+use build_helper::{self, output};
+
+use builder::{Kind, RunConfig, ShouldRun, Builder, Compiler, Step};
+use cache::{INTERNER, Interned};
+use compile;
+use dist;
+use native;
+use tool::{self, Tool};
+use util::{self, dylib_path, dylib_path_var};
+use {Build, Mode};
+use toolstate::ToolState;
+
+const ADB_TEST_DIR: &str = "/data/tmp/work";
+
+/// The two modes of the test runner; tests or benchmarks.
+#[derive(Debug, PartialEq, Eq, Hash, Copy, Clone)]
+pub enum TestKind {
+ /// Run `cargo test`
+ Test,
+ /// Run `cargo bench`
+ Bench,
+}
+
+impl TestKind {
+ // Return the cargo subcommand for this test kind
+ fn subcommand(self) -> &'static str {
+ match self {
+ TestKind::Test => "test",
+ TestKind::Bench => "bench",
+ }
+ }
+}
+
+impl fmt::Display for TestKind {
+ fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+ f.write_str(match *self {
+ TestKind::Test => "Testing",
+ TestKind::Bench => "Benchmarking",
+ })
+ }
+}
+
+fn try_run(build: &Build, cmd: &mut Command) -> bool {
+ if !build.fail_fast {
+ if !build.try_run(cmd) {
+ let mut failures = build.delayed_failures.borrow_mut();
+ failures.push(format!("{:?}", cmd));
+ return false;
+ }
+ } else {
+ build.run(cmd);
+ }
+ true
+}
+
+fn try_run_quiet(build: &Build, cmd: &mut Command) {
+ if !build.fail_fast {
+ if !build.try_run_quiet(cmd) {
+ let mut failures = build.delayed_failures.borrow_mut();
+ failures.push(format!("{:?}", cmd));
+ }
+ } else {
+ build.run_quiet(cmd);
+ }
+}
+
+#[derive(Debug, Copy, Clone, PartialEq, Eq, Hash)]
+pub struct Linkcheck {
+ host: Interned<String>,
+}
+
+impl Step for Linkcheck {
+ type Output = ();
+ const ONLY_HOSTS: bool = true;
+ const DEFAULT: bool = true;
+
+ /// Runs the `linkchecker` tool as compiled in `stage` by the `host` compiler.
+ ///
+ /// This tool in `src/tools` will verify the validity of all our links in the
+ /// documentation to ensure we don't have a bunch of dead ones.
+ fn run(self, builder: &Builder) {
+ let build = builder.build;
+ let host = self.host;
+
+ println!("Linkcheck ({})", host);
+
+ builder.default_doc(None);
+
+ let _time = util::timeit();
+ try_run(build, builder.tool_cmd(Tool::Linkchecker)
+ .arg(build.out.join(host).join("doc")));
+ }
+
+ fn should_run(run: ShouldRun) -> ShouldRun {
+ let builder = run.builder;
+ run.path("src/tools/linkchecker").default_condition(builder.build.config.docs)
+ }
+
+ fn make_run(run: RunConfig) {
+ run.builder.ensure(Linkcheck { host: run.target });
+ }
+}
+
+#[derive(Debug, Copy, Clone, PartialEq, Eq, Hash)]
+pub struct Cargotest {
+ stage: u32,
+ host: Interned<String>,
+}
+
+impl Step for Cargotest {
+ type Output = ();
+ const ONLY_HOSTS: bool = true;
+
+ fn should_run(run: ShouldRun) -> ShouldRun {
+ run.path("src/tools/cargotest")
+ }
+
+ fn make_run(run: RunConfig) {
+ run.builder.ensure(Cargotest {
+ stage: run.builder.top_stage,
+ host: run.target,
+ });
+ }
+
+ /// Runs the `cargotest` tool as compiled in `stage` by the `host` compiler.
+ ///
+ /// This tool in `src/tools` will check out a few Rust projects and run `cargo
+ /// test` to ensure that we don't regress the test suites there.
+ fn run(self, builder: &Builder) {
+ let build = builder.build;
+ let compiler = builder.compiler(self.stage, self.host);
+ builder.ensure(compile::Rustc { compiler, target: compiler.host });
+
+ // Note that this is a short, cryptic, and not scoped directory name. This
+ // is currently to minimize the length of path on Windows where we otherwise
+ // quickly run into path name limit constraints.
+ let out_dir = build.out.join("ct");
+ t!(fs::create_dir_all(&out_dir));
+
+ let _time = util::timeit();
+ let mut cmd = builder.tool_cmd(Tool::CargoTest);
+ try_run(build, cmd.arg(&build.initial_cargo)
+ .arg(&out_dir)
+ .env("RUSTC", builder.rustc(compiler))
+ .env("RUSTDOC", builder.rustdoc(compiler.host)));
+ }
+}
+
+#[derive(Debug, Copy, Clone, PartialEq, Eq, Hash)]
+pub struct Cargo {
+ stage: u32,
+ host: Interned<String>,
+}
+
+impl Step for Cargo {
+ type Output = ();
+ const ONLY_HOSTS: bool = true;
+
+ fn should_run(run: ShouldRun) -> ShouldRun {
+ run.path("src/tools/cargo")
+ }
+
+ fn make_run(run: RunConfig) {
+ run.builder.ensure(Cargo {
+ stage: run.builder.top_stage,
+ host: run.target,
+ });
+ }
+
+ /// Runs `cargo test` for `cargo` packaged with Rust.
+ fn run(self, builder: &Builder) {
+ let build = builder.build;
+ let compiler = builder.compiler(self.stage, self.host);
+
+ builder.ensure(tool::Cargo { compiler, target: self.host });
+ let mut cargo = builder.cargo(compiler, Mode::Tool, self.host, "test");
+ cargo.arg("--manifest-path").arg(build.src.join("src/tools/cargo/Cargo.toml"));
+ if !build.fail_fast {
+ cargo.arg("--no-fail-fast");
+ }
+
+ // Don't build tests dynamically, just a pain to work with
+ cargo.env("RUSTC_NO_PREFER_DYNAMIC", "1");
+
+ // Don't run cross-compile tests, we may not have cross-compiled libstd libs
+ // available.
+ cargo.env("CFG_DISABLE_CROSS_TESTS", "1");
+
+ try_run(build, cargo.env("PATH", &path_for_cargo(builder, compiler)));
+ }
+}
+
+#[derive(Debug, Copy, Clone, PartialEq, Eq, Hash)]
+pub struct Rls {
+ stage: u32,
+ host: Interned<String>,
+}
+
+impl Step for Rls {
+ type Output = ();
+ const ONLY_HOSTS: bool = true;
+
+ fn should_run(run: ShouldRun) -> ShouldRun {
+ run.path("src/tools/rls")
+ }
+
+ fn make_run(run: RunConfig) {
+ run.builder.ensure(Rls {
+ stage: run.builder.top_stage,
+ host: run.target,
+ });
+ }
+
+ /// Runs `cargo test` for the rls.
+ fn run(self, builder: &Builder) {
+ let build = builder.build;
+ let stage = self.stage;
+ let host = self.host;
+ let compiler = builder.compiler(stage, host);
+
+ builder.ensure(tool::Rls { compiler, target: self.host });
+ let mut cargo = tool::prepare_tool_cargo(builder,
+ compiler,
+ host,
+ "test",
+ "src/tools/rls");
+
+ // Don't build tests dynamically, just a pain to work with
+ cargo.env("RUSTC_NO_PREFER_DYNAMIC", "1");
+
+ builder.add_rustc_lib_path(compiler, &mut cargo);
+
+ if try_run(build, &mut cargo) {
+ build.save_toolstate("rls", ToolState::TestPass);
+ }
+ }
+}
+
+#[derive(Debug, Copy, Clone, PartialEq, Eq, Hash)]
+pub struct Rustfmt {
+ stage: u32,
+ host: Interned<String>,
+}
+
+impl Step for Rustfmt {
+ type Output = ();
+ const ONLY_HOSTS: bool = true;
+
+ fn should_run(run: ShouldRun) -> ShouldRun {
+ run.path("src/tools/rustfmt")
+ }
+
+ fn make_run(run: RunConfig) {
+ run.builder.ensure(Rustfmt {
+ stage: run.builder.top_stage,
+ host: run.target,
+ });
+ }
+
+ /// Runs `cargo test` for rustfmt.
+ fn run(self, builder: &Builder) {
+ let build = builder.build;
+ let stage = self.stage;
+ let host = self.host;
+ let compiler = builder.compiler(stage, host);
+
+ builder.ensure(tool::Rustfmt { compiler, target: self.host });
+ let mut cargo = tool::prepare_tool_cargo(builder,
+ compiler,
+ host,
+ "test",
+ "src/tools/rustfmt");
+
+ // Don't build tests dynamically, just a pain to work with
+ cargo.env("RUSTC_NO_PREFER_DYNAMIC", "1");
+
+ builder.add_rustc_lib_path(compiler, &mut cargo);
+
+ if try_run(build, &mut cargo) {
+ build.save_toolstate("rustfmt", ToolState::TestPass);
+ }
+ }
+}
+
+#[derive(Debug, Copy, Clone, PartialEq, Eq, Hash)]
+pub struct Miri {
+ stage: u32,
+ host: Interned<String>,
+}
+
+impl Step for Miri {
+ type Output = ();
+ const ONLY_HOSTS: bool = true;
+ const DEFAULT: bool = true;
+
+ fn should_run(run: ShouldRun) -> ShouldRun {
+ let test_miri = run.builder.build.config.test_miri;
+ run.path("src/tools/miri").default_condition(test_miri)
+ }
+
+ fn make_run(run: RunConfig) {
+ run.builder.ensure(Miri {
+ stage: run.builder.top_stage,
+ host: run.target,
+ });
+ }
+
+ /// Runs `cargo test` for miri.
+ fn run(self, builder: &Builder) {
+ let build = builder.build;
+ let stage = self.stage;
+ let host = self.host;
+ let compiler = builder.compiler(stage, host);
+
+ if let Some(miri) = builder.ensure(tool::Miri { compiler, target: self.host }) {
+ let mut cargo = builder.cargo(compiler, Mode::Tool, host, "test");
+ cargo.arg("--manifest-path").arg(build.src.join("src/tools/miri/Cargo.toml"));
+
+ // Don't build tests dynamically, just a pain to work with
+ cargo.env("RUSTC_NO_PREFER_DYNAMIC", "1");
+ // miri tests need to know about the stage sysroot
+ cargo.env("MIRI_SYSROOT", builder.sysroot(compiler));
+ cargo.env("RUSTC_TEST_SUITE", builder.rustc(compiler));
+ cargo.env("RUSTC_LIB_PATH", builder.rustc_libdir(compiler));
+ cargo.env("MIRI_PATH", miri);
+
+ builder.add_rustc_lib_path(compiler, &mut cargo);
+
+ if try_run(build, &mut cargo) {
+ build.save_toolstate("miri", ToolState::TestPass);
+ }
+ } else {
+ eprintln!("failed to test miri: could not build");
+ }
+ }
+}
+
+#[derive(Debug, Copy, Clone, PartialEq, Eq, Hash)]
+pub struct Clippy {
+ stage: u32,
+ host: Interned<String>,
+}
+
+impl Step for Clippy {
+ type Output = ();
+ const ONLY_HOSTS: bool = true;
+ const DEFAULT: bool = false;
+
+ fn should_run(run: ShouldRun) -> ShouldRun {
+ run.path("src/tools/clippy")
+ }
+
+ fn make_run(run: RunConfig) {
+ run.builder.ensure(Clippy {
+ stage: run.builder.top_stage,
+ host: run.target,
+ });
+ }
+
+ /// Runs `cargo test` for clippy.
+ fn run(self, builder: &Builder) {
+ let build = builder.build;
+ let stage = self.stage;
+ let host = self.host;
+ let compiler = builder.compiler(stage, host);
+
+ if let Some(clippy) = builder.ensure(tool::Clippy { compiler, target: self.host }) {
+ let mut cargo = builder.cargo(compiler, Mode::Tool, host, "test");
+ cargo.arg("--manifest-path").arg(build.src.join("src/tools/clippy/Cargo.toml"));
+
+ // Don't build tests dynamically, just a pain to work with
+ cargo.env("RUSTC_NO_PREFER_DYNAMIC", "1");
+ // clippy tests need to know about the stage sysroot
+ cargo.env("SYSROOT", builder.sysroot(compiler));
+ cargo.env("RUSTC_TEST_SUITE", builder.rustc(compiler));
+ cargo.env("RUSTC_LIB_PATH", builder.rustc_libdir(compiler));
+ let host_libs = builder.stage_out(compiler, Mode::Tool).join(builder.cargo_dir());
+ cargo.env("HOST_LIBS", host_libs);
+ // clippy tests need to find the driver
+ cargo.env("CLIPPY_DRIVER_PATH", clippy);
+
+ builder.add_rustc_lib_path(compiler, &mut cargo);
+
+ if try_run(build, &mut cargo) {
+ build.save_toolstate("clippy-driver", ToolState::TestPass);
+ }
+ } else {
+ eprintln!("failed to test clippy: could not build");
+ }
+ }
+}
+
+fn path_for_cargo(builder: &Builder, compiler: Compiler) -> OsString {
+ // Configure PATH to find the right rustc. NB. we have to use PATH
+ // and not RUSTC because the Cargo test suite has tests that will
+ // fail if rustc is not spelled `rustc`.
+ let path = builder.sysroot(compiler).join("bin");
+ let old_path = env::var_os("PATH").unwrap_or_default();
+ env::join_paths(iter::once(path).chain(env::split_paths(&old_path))).expect("")
+}
+
+#[derive(Debug, Copy, Clone, Hash, PartialEq, Eq)]
+pub struct RustdocJS {
+ pub host: Interned<String>,
+ pub target: Interned<String>,
+}
+
+impl Step for RustdocJS {
+ type Output = ();
+ const DEFAULT: bool = true;
+ const ONLY_HOSTS: bool = true;
+
+ fn should_run(run: ShouldRun) -> ShouldRun {
+ run.path("src/test/rustdoc-js")
+ }
+
+ fn make_run(run: RunConfig) {
+ run.builder.ensure(RustdocJS {
+ host: run.host,
+ target: run.target,
+ });
+ }
+
+ fn run(self, builder: &Builder) {
+ if let Some(ref nodejs) = builder.config.nodejs {
+ let mut command = Command::new(nodejs);
+ command.args(&["src/tools/rustdoc-js/tester.js", &*self.host]);
+ builder.ensure(::doc::Std {
+ target: self.target,
+ stage: builder.top_stage,
+ });
+ builder.run(&mut command);
+ } else {
+ println!("No nodejs found, skipping \"src/test/rustdoc-js\" tests");
+ }
+ }
+}
+
+#[derive(Debug, Copy, Clone, PartialEq, Eq, Hash)]
+pub struct Tidy {
+ host: Interned<String>,
+}
+
+impl Step for Tidy {
+ type Output = ();
+ const DEFAULT: bool = true;
+ const ONLY_HOSTS: bool = true;
+ const ONLY_BUILD: bool = true;
+
+ /// Runs the `tidy` tool as compiled in `stage` by the `host` compiler.
+ ///
+ /// This tool in `src/tools` checks up on various bits and pieces of style and
+ /// otherwise just implements a few lint-like checks that are specific to the
+ /// compiler itself.
+ fn run(self, builder: &Builder) {
+ let build = builder.build;
+ let host = self.host;
+
+ let _folder = build.fold_output(|| "tidy");
+ println!("tidy check ({})", host);
+ let mut cmd = builder.tool_cmd(Tool::Tidy);
+ cmd.arg(build.src.join("src"));
+ if !build.config.vendor {
+ cmd.arg("--no-vendor");
+ }
+ if build.config.quiet_tests {
+ cmd.arg("--quiet");
+ }
+ try_run(build, &mut cmd);
+ }
+
+ fn should_run(run: ShouldRun) -> ShouldRun {
+ run.path("src/tools/tidy")
+ }
+
+ fn make_run(run: RunConfig) {
+ run.builder.ensure(Tidy {
+ host: run.builder.build.build,
+ });
+ }
+}
+
+fn testdir(build: &Build, host: Interned<String>) -> PathBuf {
+ build.out.join(host).join("test")
+}
+
+#[derive(Debug, Copy, Clone, PartialEq, Eq, Hash)]
+struct Test {
+ path: &'static str,
+ mode: &'static str,
+ suite: &'static str,
+}
+
+static DEFAULT_COMPILETESTS: &[Test] = &[
+ Test { path: "src/test/ui", mode: "ui", suite: "ui" },
+ Test { path: "src/test/run-pass", mode: "run-pass", suite: "run-pass" },
+ Test { path: "src/test/compile-fail", mode: "compile-fail", suite: "compile-fail" },
+ Test { path: "src/test/parse-fail", mode: "parse-fail", suite: "parse-fail" },
+ Test { path: "src/test/run-fail", mode: "run-fail", suite: "run-fail" },
+ Test {
+ path: "src/test/run-pass-valgrind",
+ mode: "run-pass-valgrind",
+ suite: "run-pass-valgrind"
+ },
+ Test { path: "src/test/mir-opt", mode: "mir-opt", suite: "mir-opt" },
+ Test { path: "src/test/codegen", mode: "codegen", suite: "codegen" },
+ Test { path: "src/test/codegen-units", mode: "codegen-units", suite: "codegen-units" },
+ Test { path: "src/test/incremental", mode: "incremental", suite: "incremental" },
+
+ // What this runs varies depending on the native platform being apple
+ Test { path: "src/test/debuginfo", mode: "debuginfo-XXX", suite: "debuginfo" },
+];
+
+#[derive(Debug, Copy, Clone, PartialEq, Eq, Hash)]
+pub struct DefaultCompiletest {
+ compiler: Compiler,
+ target: Interned<String>,
+ mode: &'static str,
+ suite: &'static str,
+}
+
+impl Step for DefaultCompiletest {
+ type Output = ();
+ const DEFAULT: bool = true;
+
+ fn should_run(mut run: ShouldRun) -> ShouldRun {
+ for test in DEFAULT_COMPILETESTS {
+ run = run.path(test.path);
+ }
+ run
+ }
+
+ fn make_run(run: RunConfig) {
+ let compiler = run.builder.compiler(run.builder.top_stage, run.host);
+
+ let test = run.path.map(|path| {
+ DEFAULT_COMPILETESTS.iter().find(|&&test| {
+ path.ends_with(test.path)
+ }).unwrap_or_else(|| {
+ panic!("make_run in compile test to receive test path, received {:?}", path);
+ })
+ });
+
+ if let Some(test) = test {
+ run.builder.ensure(DefaultCompiletest {
+ compiler,
+ target: run.target,
+ mode: test.mode,
+ suite: test.suite,
+ });
+ } else {
+ for test in DEFAULT_COMPILETESTS {
+ run.builder.ensure(DefaultCompiletest {
+ compiler,
+ target: run.target,
+ mode: test.mode,
+ suite: test.suite
+ });
+ }
+ }
+ }
+
+ fn run(self, builder: &Builder) {
+ builder.ensure(Compiletest {
+ compiler: self.compiler,
+ target: self.target,
+ mode: self.mode,
+ suite: self.suite,
+ })
+ }
+}
+
+// Also default, but host-only.
+static HOST_COMPILETESTS: &[Test] = &[
+ Test { path: "src/test/ui-fulldeps", mode: "ui", suite: "ui-fulldeps" },
+ Test { path: "src/test/run-pass-fulldeps", mode: "run-pass", suite: "run-pass-fulldeps" },
+ Test { path: "src/test/run-fail-fulldeps", mode: "run-fail", suite: "run-fail-fulldeps" },
+ Test {
+ path: "src/test/compile-fail-fulldeps",
+ mode: "compile-fail",
+ suite: "compile-fail-fulldeps",
+ },
+ Test {
+ path: "src/test/incremental-fulldeps",
+ mode: "incremental",
+ suite: "incremental-fulldeps",
+ },
+ Test { path: "src/test/run-make", mode: "run-make", suite: "run-make" },
+ Test { path: "src/test/rustdoc", mode: "rustdoc", suite: "rustdoc" },
+
+ Test { path: "src/test/pretty", mode: "pretty", suite: "pretty" },
+ Test { path: "src/test/run-pass/pretty", mode: "pretty", suite: "run-pass" },
+ Test { path: "src/test/run-fail/pretty", mode: "pretty", suite: "run-fail" },
+ Test { path: "src/test/run-pass-valgrind/pretty", mode: "pretty", suite: "run-pass-valgrind" },
+ Test { path: "src/test/run-pass-fulldeps/pretty", mode: "pretty", suite: "run-pass-fulldeps" },
+ Test { path: "src/test/run-fail-fulldeps/pretty", mode: "pretty", suite: "run-fail-fulldeps" },
+];
+
+#[derive(Debug, Copy, Clone, PartialEq, Eq, Hash)]
+pub struct HostCompiletest {
+ compiler: Compiler,
+ target: Interned<String>,
+ mode: &'static str,
+ suite: &'static str,
+}
+
+impl Step for HostCompiletest {
+ type Output = ();
+ const DEFAULT: bool = true;
+ const ONLY_HOSTS: bool = true;
+
+ fn should_run(mut run: ShouldRun) -> ShouldRun {
+ for test in HOST_COMPILETESTS {
+ run = run.path(test.path);
+ }
+ run
+ }
+
+ fn make_run(run: RunConfig) {
+ let compiler = run.builder.compiler(run.builder.top_stage, run.host);
+
+ let test = run.path.map(|path| {
+ HOST_COMPILETESTS.iter().find(|&&test| {
+ path.ends_with(test.path)
+ }).unwrap_or_else(|| {
+ panic!("make_run in compile test to receive test path, received {:?}", path);
+ })
+ });
+
+ if let Some(test) = test {
+ run.builder.ensure(HostCompiletest {
+ compiler,
+ target: run.target,
+ mode: test.mode,
+ suite: test.suite,
+ });
+ } else {
+ for test in HOST_COMPILETESTS {
+ if test.mode == "pretty" {
+ continue;
+ }
+ run.builder.ensure(HostCompiletest {
+ compiler,
+ target: run.target,
+ mode: test.mode,
+ suite: test.suite
+ });
+ }
+ }
+ }
+
+ fn run(self, builder: &Builder) {
+ builder.ensure(Compiletest {
+ compiler: self.compiler,
+ target: self.target,
+ mode: self.mode,
+ suite: self.suite,
+ })
+ }
+}
+
+#[derive(Debug, Copy, Clone, PartialEq, Eq, Hash)]
+struct Compiletest {
+ compiler: Compiler,
+ target: Interned<String>,
+ mode: &'static str,
+ suite: &'static str,
+}
+
+impl Step for Compiletest {
+ type Output = ();
+
+ fn should_run(run: ShouldRun) -> ShouldRun {
+ run.never()
+ }
+
+ /// Executes the `compiletest` tool to run a suite of tests.
+ ///
+ /// Compiles all tests with `compiler` for `target` with the specified
+ /// compiletest `mode` and `suite` arguments. For example `mode` can be
+ /// "run-pass" or `suite` can be something like `debuginfo`.
+ fn run(self, builder: &Builder) {
+ let build = builder.build;
+ let compiler = self.compiler;
+ let target = self.target;
+ let mode = self.mode;
+ let suite = self.suite;
+
+ // Skip codegen tests if they aren't enabled in configuration.
+ if !build.config.codegen_tests && suite == "codegen" {
+ return;
+ }
+
+ if suite == "debuginfo" {
+ // Skip debuginfo tests on MSVC
+ if build.build.contains("msvc") {
+ return;
+ }
+
+ if mode == "debuginfo-XXX" {
+ return if build.build.contains("apple") {
+ builder.ensure(Compiletest {
+ mode: "debuginfo-lldb",
+ ..self
+ });
+ } else {
+ builder.ensure(Compiletest {
+ mode: "debuginfo-gdb",
+ ..self
+ });
+ };
+ }
+
+ builder.ensure(dist::DebuggerScripts {
+ sysroot: builder.sysroot(compiler),
+ host: target
+ });
+ }
+
+ if suite.ends_with("fulldeps") ||
+ // FIXME: Does pretty need librustc compiled? Note that there are
+ // fulldeps test suites with mode = pretty as well.
+ mode == "pretty" ||
+ mode == "rustdoc" ||
+ mode == "run-make" {
+ builder.ensure(compile::Rustc { compiler, target });
+ }
+
+ builder.ensure(compile::Test { compiler, target });
+ builder.ensure(native::TestHelpers { target });
+ builder.ensure(RemoteCopyLibs { compiler, target });
+
+ let _folder = build.fold_output(|| format!("test_{}", suite));
+ println!("Check compiletest suite={} mode={} ({} -> {})",
+ suite, mode, &compiler.host, target);
+ let mut cmd = builder.tool_cmd(Tool::Compiletest);
+
+ // compiletest currently has... a lot of arguments, so let's just pass all
+ // of them!
+
+ cmd.arg("--compile-lib-path").arg(builder.rustc_libdir(compiler));
+ cmd.arg("--run-lib-path").arg(builder.sysroot_libdir(compiler, target));
+ cmd.arg("--rustc-path").arg(builder.rustc(compiler));
+
+ // Avoid depending on rustdoc when we don't need it.
+ if mode == "rustdoc" || mode == "run-make" {
+ cmd.arg("--rustdoc-path").arg(builder.rustdoc(compiler.host));
+ }
+
+ cmd.arg("--src-base").arg(build.src.join("src/test").join(suite));
+ cmd.arg("--build-base").arg(testdir(build, compiler.host).join(suite));
+ cmd.arg("--stage-id").arg(format!("stage{}-{}", compiler.stage, target));
+ cmd.arg("--mode").arg(mode);
+ cmd.arg("--target").arg(target);
+ cmd.arg("--host").arg(&*compiler.host);
+ cmd.arg("--llvm-filecheck").arg(build.llvm_filecheck(build.build));
+
+ if let Some(ref nodejs) = build.config.nodejs {
+ cmd.arg("--nodejs").arg(nodejs);
+ }
+
+ let mut flags = vec!["-Crpath".to_string()];
+ if build.config.rust_optimize_tests {
+ flags.push("-O".to_string());
+ }
+ if build.config.rust_debuginfo_tests {
+ flags.push("-g".to_string());
+ }
+ flags.push("-Zmiri -Zunstable-options".to_string());
+ flags.push(build.config.cmd.rustc_args().join(" "));
+
+ if let Some(linker) = build.linker(target) {
+ cmd.arg("--linker").arg(linker);
+ }
+
+ let hostflags = flags.clone();
+ cmd.arg("--host-rustcflags").arg(hostflags.join(" "));
+
+ let mut targetflags = flags.clone();
+ targetflags.push(format!("-Lnative={}",
+ build.test_helpers_out(target).display()));
+ cmd.arg("--target-rustcflags").arg(targetflags.join(" "));
+
+ cmd.arg("--docck-python").arg(build.python());
+
+ if build.build.ends_with("apple-darwin") {
+ // Force /usr/bin/python on macOS for LLDB tests because we're loading the
+ // LLDB plugin's compiled module which only works with the system python
+ // (namely not Homebrew-installed python)
+ cmd.arg("--lldb-python").arg("/usr/bin/python");
+ } else {
+ cmd.arg("--lldb-python").arg(build.python());
+ }
+
+ if let Some(ref gdb) = build.config.gdb {
+ cmd.arg("--gdb").arg(gdb);
+ }
+ if let Some(ref vers) = build.lldb_version {
+ cmd.arg("--lldb-version").arg(vers);
+ }
+ if let Some(ref dir) = build.lldb_python_dir {
+ cmd.arg("--lldb-python-dir").arg(dir);
+ }
+
+ cmd.args(&build.config.cmd.test_args());
+
+ if build.is_verbose() {
+ cmd.arg("--verbose");
+ }
+
+ if build.config.quiet_tests {
+ cmd.arg("--quiet");
+ }
+
+ if build.config.llvm_enabled {
+ let llvm_config = build.llvm_config(target);
+ let llvm_version = output(Command::new(&llvm_config).arg("--version"));
+ cmd.arg("--llvm-version").arg(llvm_version);
+ if !build.is_rust_llvm(target) {
+ cmd.arg("--system-llvm");
+ }
+
+ // Only pass correct values for these flags for the `run-make` suite as it
+ // requires that a C++ compiler was configured which isn't always the case.
+ if suite == "run-make" {
+ let llvm_components = output(Command::new(&llvm_config).arg("--components"));
+ let llvm_cxxflags = output(Command::new(&llvm_config).arg("--cxxflags"));
+ cmd.arg("--cc").arg(build.cc(target))
+ .arg("--cxx").arg(build.cxx(target).unwrap())
+ .arg("--cflags").arg(build.cflags(target).join(" "))
+ .arg("--llvm-components").arg(llvm_components.trim())
+ .arg("--llvm-cxxflags").arg(llvm_cxxflags.trim());
+ if let Some(ar) = build.ar(target) {
+ cmd.arg("--ar").arg(ar);
+ }
+ }
+ }
+ if suite == "run-make" && !build.config.llvm_enabled {
+ println!("Ignoring run-make test suite as they generally dont work without LLVM");
+ return;
+ }
+
+ if suite != "run-make" {
+ cmd.arg("--cc").arg("")
+ .arg("--cxx").arg("")
+ .arg("--cflags").arg("")
+ .arg("--llvm-components").arg("")
+ .arg("--llvm-cxxflags").arg("");
+ }
+
+ if build.remote_tested(target) {
+ cmd.arg("--remote-test-client").arg(builder.tool_exe(Tool::RemoteTestClient));
+ }
+
+ // Running a C compiler on MSVC requires a few env vars to be set, to be
+ // sure to set them here.
+ //
+ // Note that if we encounter `PATH` we make sure to append to our own `PATH`
+ // rather than stomp over it.
+ if target.contains("msvc") {
+ for &(ref k, ref v) in build.cc[&target].env() {
+ if k != "PATH" {
+ cmd.env(k, v);
+ }
+ }
+ }
+ cmd.env("RUSTC_BOOTSTRAP", "1");
+ build.add_rust_test_threads(&mut cmd);
+
+ if build.config.sanitizers {
+ cmd.env("SANITIZER_SUPPORT", "1");
+ }
+
+ if build.config.profiler {
+ cmd.env("PROFILER_SUPPORT", "1");
+ }
+
+ cmd.arg("--adb-path").arg("adb");
+ cmd.arg("--adb-test-dir").arg(ADB_TEST_DIR);
+ if target.contains("android") {
+ // Assume that cc for this target comes from the android sysroot
+ cmd.arg("--android-cross-path")
+ .arg(build.cc(target).parent().unwrap().parent().unwrap());
+ } else {
+ cmd.arg("--android-cross-path").arg("");
+ }
+
+ build.ci_env.force_coloring_in_ci(&mut cmd);
+
+ let _time = util::timeit();
+ try_run(build, &mut cmd);
+ }
+}
+
+#[derive(Debug, Copy, Clone, PartialEq, Eq, Hash)]
+pub struct Docs {
+ compiler: Compiler,
+}
+
+impl Step for Docs {
+ type Output = ();
+ const DEFAULT: bool = true;
+ const ONLY_HOSTS: bool = true;
+
+ fn should_run(run: ShouldRun) -> ShouldRun {
+ run.path("src/doc")
+ }
+
+ fn make_run(run: RunConfig) {
+ run.builder.ensure(Docs {
+ compiler: run.builder.compiler(run.builder.top_stage, run.host),
+ });
+ }
+
+ /// Run `rustdoc --test` for all documentation in `src/doc`.
+ ///
+ /// This will run all tests in our markdown documentation (e.g. the book)
+ /// located in `src/doc`. The `rustdoc` that's run is the one that sits next to
+ /// `compiler`.
+ fn run(self, builder: &Builder) {
+ let build = builder.build;
+ let compiler = self.compiler;
+
+ builder.ensure(compile::Test { compiler, target: compiler.host });
+
+ // Do a breadth-first traversal of the `src/doc` directory and just run
+ // tests for all files that end in `*.md`
+ let mut stack = vec![build.src.join("src/doc")];
+ let _time = util::timeit();
+ let _folder = build.fold_output(|| "test_docs");
+
+ while let Some(p) = stack.pop() {
+ if p.is_dir() {
+ stack.extend(t!(p.read_dir()).map(|p| t!(p).path()));
+ continue
+ }
+
+ if p.extension().and_then(|s| s.to_str()) != Some("md") {
+ continue;
+ }
+
+ // The nostarch directory in the book is for no starch, and so isn't
+ // guaranteed to build. We don't care if it doesn't build, so skip it.
+ if p.to_str().map_or(false, |p| p.contains("nostarch")) {
+ continue;
+ }
+
+ markdown_test(builder, compiler, &p);
+ }
+ }
+}
+
+#[derive(Debug, Copy, Clone, PartialEq, Eq, Hash)]
+pub struct ErrorIndex {
+ compiler: Compiler,
+}
+
+impl Step for ErrorIndex {
+ type Output = ();
+ const DEFAULT: bool = true;
+ const ONLY_HOSTS: bool = true;
+
+ fn should_run(run: ShouldRun) -> ShouldRun {
+ run.path("src/tools/error_index_generator")
+ }
+
+ fn make_run(run: RunConfig) {
+ run.builder.ensure(ErrorIndex {
+ compiler: run.builder.compiler(run.builder.top_stage, run.host),
+ });
+ }
+
+ /// Run the error index generator tool to execute the tests located in the error
+ /// index.
+ ///
+ /// The `error_index_generator` tool lives in `src/tools` and is used to
+ /// generate a markdown file from the error indexes of the code base which is
+ /// then passed to `rustdoc --test`.
+ fn run(self, builder: &Builder) {
+ let build = builder.build;
+ let compiler = self.compiler;
+
+ builder.ensure(compile::Std { compiler, target: compiler.host });
+
+ let _folder = build.fold_output(|| "test_error_index");
+ println!("Testing error-index stage{}", compiler.stage);
+
+ let dir = testdir(build, compiler.host);
+ t!(fs::create_dir_all(&dir));
+ let output = dir.join("error-index.md");
+
+ let _time = util::timeit();
+ build.run(builder.tool_cmd(Tool::ErrorIndex)
+ .arg("markdown")
+ .arg(&output)
+ .env("CFG_BUILD", &build.build)
+ .env("RUSTC_ERROR_METADATA_DST", build.extended_error_dir()));
+
+ markdown_test(builder, compiler, &output);
+ }
+}
+
+fn markdown_test(builder: &Builder, compiler: Compiler, markdown: &Path) {
+ let build = builder.build;
+ let mut file = t!(File::open(markdown));
+ let mut contents = String::new();
+ t!(file.read_to_string(&mut contents));
+ if !contents.contains("```") {
+ return;
+ }
+
+ println!("doc tests for: {}", markdown.display());
+ let mut cmd = builder.rustdoc_cmd(compiler.host);
+ build.add_rust_test_threads(&mut cmd);
+ cmd.arg("--test");
+ cmd.arg(markdown);
+ cmd.env("RUSTC_BOOTSTRAP", "1");
+
+ let test_args = build.config.cmd.test_args().join(" ");
+ cmd.arg("--test-args").arg(test_args);
+
+ if build.config.quiet_tests {
+ try_run_quiet(build, &mut cmd);
+ } else {
+ try_run(build, &mut cmd);
+ }
+}
+
+#[derive(Debug, Copy, Clone, PartialEq, Eq, Hash)]
+pub struct CrateLibrustc {
+ compiler: Compiler,
+ target: Interned<String>,
+ test_kind: TestKind,
+ krate: Option<Interned<String>>,
+}
+
+impl Step for CrateLibrustc {
+ type Output = ();
+ const DEFAULT: bool = true;
+ const ONLY_HOSTS: bool = true;
+
+ fn should_run(run: ShouldRun) -> ShouldRun {
+ run.krate("rustc-main")
+ }
+
+ fn make_run(run: RunConfig) {
+ let builder = run.builder;
+ let compiler = builder.compiler(builder.top_stage, run.host);
+
+ let make = |name: Option<Interned<String>>| {
+ let test_kind = if builder.kind == Kind::Test {
+ TestKind::Test
+ } else if builder.kind == Kind::Bench {
+ TestKind::Bench
+ } else {
+ panic!("unexpected builder.kind in crate: {:?}", builder.kind);
+ };
+
+ builder.ensure(CrateLibrustc {
+ compiler,
+ target: run.target,
+ test_kind,
+ krate: name,
+ });
+ };
+
+ if let Some(path) = run.path {
+ for (name, krate_path) in builder.crates("rustc-main") {
+ if path.ends_with(krate_path) {
+ make(Some(name));
+ }
+ }
+ } else {
+ make(None);
+ }
+ }
+
+
+ fn run(self, builder: &Builder) {
+ builder.ensure(Crate {
+ compiler: self.compiler,
+ target: self.target,
+ mode: Mode::Librustc,
+ test_kind: self.test_kind,
+ krate: self.krate,
+ });
+ }
+}
+
+#[derive(Debug, Copy, Clone, PartialEq, Eq, Hash)]
+pub struct Crate {
+ compiler: Compiler,
+ target: Interned<String>,
+ mode: Mode,
+ test_kind: TestKind,
+ krate: Option<Interned<String>>,
+}
+
+impl Step for Crate {
+ type Output = ();
+ const DEFAULT: bool = true;
+
+ fn should_run(run: ShouldRun) -> ShouldRun {
+ run.krate("std").krate("test")
+ }
+
+ fn make_run(run: RunConfig) {
+ let builder = run.builder;
+ let compiler = builder.compiler(builder.top_stage, run.host);
+
+ let make = |mode: Mode, name: Option<Interned<String>>| {
+ let test_kind = if builder.kind == Kind::Test {
+ TestKind::Test
+ } else if builder.kind == Kind::Bench {
+ TestKind::Bench
+ } else {
+ panic!("unexpected builder.kind in crate: {:?}", builder.kind);
+ };
+
+ builder.ensure(Crate {
+ compiler,
+ target: run.target,
+ mode,
+ test_kind,
+ krate: name,
+ });
+ };
+
+ if let Some(path) = run.path {
+ for (name, krate_path) in builder.crates("std") {
+ if path.ends_with(krate_path) {
+ make(Mode::Libstd, Some(name));
+ }
+ }
+ for (name, krate_path) in builder.crates("test") {
+ if path.ends_with(krate_path) {
+ make(Mode::Libtest, Some(name));
+ }
+ }
+ } else {
+ make(Mode::Libstd, None);
+ make(Mode::Libtest, None);
+ }
+ }
+
+ /// Run all unit tests plus documentation tests for an entire crate DAG defined
+ /// by a `Cargo.toml`
+ ///
+ /// This is what runs tests for crates like the standard library, compiler, etc.
+ /// It essentially is the driver for running `cargo test`.
+ ///
+ /// Currently this runs all tests for a DAG by passing a bunch of `-p foo`
+ /// arguments, and those arguments are discovered from `cargo metadata`.
+ fn run(self, builder: &Builder) {
+ let build = builder.build;
+ let compiler = self.compiler;
+ let target = self.target;
+ let mode = self.mode;
+ let test_kind = self.test_kind;
+ let krate = self.krate;
+
+ builder.ensure(compile::Test { compiler, target });
+ builder.ensure(RemoteCopyLibs { compiler, target });
+
+ // If we're not doing a full bootstrap but we're testing a stage2 version of
+ // libstd, then what we're actually testing is the libstd produced in
+ // stage1. Reflect that here by updating the compiler that we're working
+ // with automatically.
+ let compiler = if build.force_use_stage1(compiler, target) {
+ builder.compiler(1, compiler.host)
+ } else {
+ compiler.clone()
+ };
+
+ let mut cargo = builder.cargo(compiler, mode, target, test_kind.subcommand());
+ let (name, root) = match mode {
+ Mode::Libstd => {
+ compile::std_cargo(build, &compiler, target, &mut cargo);
+ ("libstd", "std")
+ }
+ Mode::Libtest => {
+ compile::test_cargo(build, &compiler, target, &mut cargo);
+ ("libtest", "test")
+ }
+ Mode::Librustc => {
+ builder.ensure(compile::Rustc { compiler, target });
+ compile::rustc_cargo(build, target, &mut cargo);
+ ("librustc", "rustc-main")
+ }
+ _ => panic!("can only test libraries"),
+ };
+ let root = INTERNER.intern_string(String::from(root));
+ let _folder = build.fold_output(|| {
+ format!("{}_stage{}-{}", test_kind.subcommand(), compiler.stage, name)
+ });
+ println!("{} {} stage{} ({} -> {})", test_kind, name, compiler.stage,
+ &compiler.host, target);
+
+ // Build up the base `cargo test` command.
+ //
+ // Pass in some standard flags then iterate over the graph we've discovered
+ // in `cargo metadata` with the maps above and figure out what `-p`
+ // arguments need to get passed.
+ if test_kind.subcommand() == "test" && !build.fail_fast {
+ cargo.arg("--no-fail-fast");
+ }
+
+ match krate {
+ Some(krate) => {
+ cargo.arg("-p").arg(krate);
+ }
+ None => {
+ let mut visited = HashSet::new();
+ let mut next = vec![root];
+ while let Some(name) = next.pop() {
+ // Right now jemalloc and the sanitizer crates are
+ // target-specific crate in the sense that it's not present
+ // on all platforms. Custom skip it here for now, but if we
+ // add more this probably wants to get more generalized.
+ //
+ // Also skip `build_helper` as it's not compiled normally
+ // for target during the bootstrap and it's just meant to be
+ // a helper crate, not tested. If it leaks through then it
+ // ends up messing with various mtime calculations and such.
+ if !name.contains("jemalloc") &&
+ *name != *"build_helper" &&
+ !(name.starts_with("rustc_") && name.ends_with("san")) &&
+ name != "dlmalloc" {
+ cargo.arg("-p").arg(&format!("{}:0.0.0", name));
+ }
+ for dep in build.crates[&name].deps.iter() {
+ if visited.insert(dep) {
+ next.push(*dep);
+ }
+ }
+ }
+ }
+ }
+
+ // The tests are going to run with the *target* libraries, so we need to
+ // ensure that those libraries show up in the LD_LIBRARY_PATH equivalent.
+ //
+ // Note that to run the compiler we need to run with the *host* libraries,
+ // but our wrapper scripts arrange for that to be the case anyway.
+ let mut dylib_path = dylib_path();
+ dylib_path.insert(0, PathBuf::from(&*builder.sysroot_libdir(compiler, target)));
+ cargo.env(dylib_path_var(), env::join_paths(&dylib_path).unwrap());
+
+ cargo.arg("--");
+ cargo.args(&build.config.cmd.test_args());
+
+ if build.config.quiet_tests {
+ cargo.arg("--quiet");
+ }
+
+ let _time = util::timeit();
+
+ if target.contains("emscripten") {
+ cargo.env(format!("CARGO_TARGET_{}_RUNNER", envify(&target)),
+ build.config.nodejs.as_ref().expect("nodejs not configured"));
+ } else if target.starts_with("wasm32") {
+ // On the wasm32-unknown-unknown target we're using LTO which is
+ // incompatible with `-C prefer-dynamic`, so disable that here
+ cargo.env("RUSTC_NO_PREFER_DYNAMIC", "1");
+
+ let node = build.config.nodejs.as_ref()
+ .expect("nodejs not configured");
+ let runner = format!("{} {}/src/etc/wasm32-shim.js",
+ node.display(),
+ build.src.display());
+ cargo.env(format!("CARGO_TARGET_{}_RUNNER", envify(&target)), &runner);
+ } else if build.remote_tested(target) {
+ cargo.env(format!("CARGO_TARGET_{}_RUNNER", envify(&target)),
+ format!("{} run",
+ builder.tool_exe(Tool::RemoteTestClient).display()));
+ }
+ try_run(build, &mut cargo);
+ }
+}
+
+#[derive(Debug, Copy, Clone, PartialEq, Eq, Hash)]
+pub struct Rustdoc {
+ host: Interned<String>,
+ test_kind: TestKind,
+}
+
+impl Step for Rustdoc {
+ type Output = ();
+ const DEFAULT: bool = true;
+ const ONLY_HOSTS: bool = true;
+
+ fn should_run(run: ShouldRun) -> ShouldRun {
+ run.path("src/librustdoc").path("src/tools/rustdoc")
+ }
+
+ fn make_run(run: RunConfig) {
+ let builder = run.builder;
+
+ let test_kind = if builder.kind == Kind::Test {
+ TestKind::Test
+ } else if builder.kind == Kind::Bench {
+ TestKind::Bench
+ } else {
+ panic!("unexpected builder.kind in crate: {:?}", builder.kind);
+ };
+
+ builder.ensure(Rustdoc {
+ host: run.host,
+ test_kind,
+ });
+ }
+
+ fn run(self, builder: &Builder) {
+ let build = builder.build;
+ let test_kind = self.test_kind;
+
+ let compiler = builder.compiler(builder.top_stage, self.host);
+ let target = compiler.host;
+
+ let mut cargo = tool::prepare_tool_cargo(builder,
+ compiler,
+ target,
+ test_kind.subcommand(),
+ "src/tools/rustdoc");
+ let _folder = build.fold_output(|| {
+ format!("{}_stage{}-rustdoc", test_kind.subcommand(), compiler.stage)
+ });
+ println!("{} rustdoc stage{} ({} -> {})", test_kind, compiler.stage,
+ &compiler.host, target);
+
+ if test_kind.subcommand() == "test" && !build.fail_fast {
+ cargo.arg("--no-fail-fast");
+ }
+
+ cargo.arg("-p").arg("rustdoc:0.0.0");
+
+ cargo.arg("--");
+ cargo.args(&build.config.cmd.test_args());
+
+ if build.config.quiet_tests {
+ cargo.arg("--quiet");
+ }
+
+ let _time = util::timeit();
+
+ try_run(build, &mut cargo);
+ }
+}
+
+fn envify(s: &str) -> String {
+ s.chars().map(|c| {
+ match c {
+ '-' => '_',
+ c => c,
+ }
+ }).flat_map(|c| c.to_uppercase()).collect()
+}
+
+/// Some test suites are run inside emulators or on remote devices, and most
+/// of our test binaries are linked dynamically which means we need to ship
+/// the standard library and such to the emulator ahead of time. This step
+/// represents this and is a dependency of all test suites.
+///
+/// Most of the time this is a noop. For some steps such as shipping data to
+/// QEMU we have to build our own tools so we've got conditional dependencies
+/// on those programs as well. Note that the remote test client is built for
+/// the build target (us) and the server is built for the target.
+#[derive(Debug, Copy, Clone, PartialEq, Eq, Hash)]
+pub struct RemoteCopyLibs {
+ compiler: Compiler,
+ target: Interned<String>,
+}
+
+impl Step for RemoteCopyLibs {
+ type Output = ();
+
+ fn should_run(run: ShouldRun) -> ShouldRun {
+ run.never()
+ }
+
+ fn run(self, builder: &Builder) {
+ let build = builder.build;
+ let compiler = self.compiler;
+ let target = self.target;
+ if !build.remote_tested(target) {
+ return
+ }
+
+ builder.ensure(compile::Test { compiler, target });
+
+ println!("REMOTE copy libs to emulator ({})", target);
+ t!(fs::create_dir_all(build.out.join("tmp")));
+
+ let server = builder.ensure(tool::RemoteTestServer { compiler, target });
+
+ // Spawn the emulator and wait for it to come online
+ let tool = builder.tool_exe(Tool::RemoteTestClient);
+ let mut cmd = Command::new(&tool);
+ cmd.arg("spawn-emulator")
+ .arg(target)
+ .arg(&server)
+ .arg(build.out.join("tmp"));
+ if let Some(rootfs) = build.qemu_rootfs(target) {
+ cmd.arg(rootfs);
+ }
+ build.run(&mut cmd);
+
+ // Push all our dylibs to the emulator
+ for f in t!(builder.sysroot_libdir(compiler, target).read_dir()) {
+ let f = t!(f);
+ let name = f.file_name().into_string().unwrap();
+ if util::is_dylib(&name) {
+ build.run(Command::new(&tool)
+ .arg("push")
+ .arg(f.path()));
+ }
+ }
+ }
+}
+
+#[derive(Debug, Copy, Clone, PartialEq, Eq, Hash)]
+pub struct Distcheck;
+
+impl Step for Distcheck {
+ type Output = ();
+ const ONLY_BUILD: bool = true;
+
+ fn should_run(run: ShouldRun) -> ShouldRun {
+ run.path("distcheck")
+ }
+
+ fn make_run(run: RunConfig) {
+ run.builder.ensure(Distcheck);
+ }
+
+ /// Run "distcheck", a 'make check' from a tarball
+ fn run(self, builder: &Builder) {
+ let build = builder.build;
+
+ println!("Distcheck");
+ let dir = build.out.join("tmp").join("distcheck");
+ let _ = fs::remove_dir_all(&dir);
+ t!(fs::create_dir_all(&dir));
+
+ // Guarantee that these are built before we begin running.
+ builder.ensure(dist::PlainSourceTarball);
+ builder.ensure(dist::Src);
+
+ let mut cmd = Command::new("tar");
+ cmd.arg("-xzf")
+ .arg(builder.ensure(dist::PlainSourceTarball))
+ .arg("--strip-components=1")
+ .current_dir(&dir);
+ build.run(&mut cmd);
+ build.run(Command::new("./configure")
+ .args(&build.config.configure_args)
+ .arg("--enable-vendor")
+ .current_dir(&dir));
+ build.run(Command::new(build_helper::make(&build.build))
+ .arg("check")
+ .current_dir(&dir));
+
+ // Now make sure that rust-src has all of libstd's dependencies
+ println!("Distcheck rust-src");
+ let dir = build.out.join("tmp").join("distcheck-src");
+ let _ = fs::remove_dir_all(&dir);
+ t!(fs::create_dir_all(&dir));
+
+ let mut cmd = Command::new("tar");
+ cmd.arg("-xzf")
+ .arg(builder.ensure(dist::Src))
+ .arg("--strip-components=1")
+ .current_dir(&dir);
+ build.run(&mut cmd);
+
+ let toml = dir.join("rust-src/lib/rustlib/src/rust/src/libstd/Cargo.toml");
+ build.run(Command::new(&build.initial_cargo)
+ .arg("generate-lockfile")
+ .arg("--manifest-path")
+ .arg(&toml)
+ .current_dir(&dir));
+ }
+}
+
+#[derive(Debug, Copy, Clone, PartialEq, Eq, Hash)]
+pub struct Bootstrap;
+
+impl Step for Bootstrap {
+ type Output = ();
+ const DEFAULT: bool = true;
+ const ONLY_HOSTS: bool = true;
+ const ONLY_BUILD: bool = true;
+
+ /// Test the build system itself
+ fn run(self, builder: &Builder) {
+ let build = builder.build;
+ let mut cmd = Command::new(&build.initial_cargo);
+ cmd.arg("test")
+ .current_dir(build.src.join("src/bootstrap"))
+ .env("CARGO_TARGET_DIR", build.out.join("bootstrap"))
+ .env("RUSTC_BOOTSTRAP", "1")
+ .env("RUSTC", &build.initial_rustc);
+ if !build.fail_fast {
+ cmd.arg("--no-fail-fast");
+ }
+ cmd.arg("--").args(&build.config.cmd.test_args());
+ try_run(build, &mut cmd);
+ }
+
+ fn should_run(run: ShouldRun) -> ShouldRun {
+ run.path("src/bootstrap")
+ }
+
+ fn make_run(run: RunConfig) {
+ run.builder.ensure(Bootstrap);
+ }
+}
-FROM ubuntu:16.04
+FROM ubuntu:18.04
RUN apt-get update && apt-get install -y --no-install-recommends \
clang \
-Subproject commit 0ba07e49264a54cb5bbd4856fcea083bb3fbec15
+Subproject commit 0a95675bab808c49f86208bacc89c5d9c53ac43f
[input] TargetFeaturesWhitelist,
[] TargetFeaturesEnabled(DefId),
+ [] InstanceDefSizeEstimate { instance_def: InstanceDef<'tcx> },
);
trait DepNodeParams<'a, 'gcx: 'tcx + 'a, 'tcx: 'a> : fmt::Debug {
use syntax::abi::Abi;
use syntax::ast::{NodeId, CRATE_NODE_ID, Name, Attribute};
-use syntax::codemap::Spanned;
use syntax_pos::Span;
use hir::*;
use hir::def::Def;
fn visit_variant(&mut self, v: &'v Variant, g: &'v Generics, item_id: NodeId) {
walk_variant(self, v, g, item_id)
}
+ fn visit_label(&mut self, label: &'v Label) {
+ walk_label(self, label)
+ }
fn visit_lifetime(&mut self, lifetime: &'v Lifetime) {
walk_lifetime(self, lifetime)
}
}
}
-pub fn walk_opt_name<'v, V: Visitor<'v>>(visitor: &mut V, span: Span, opt_name: Option<Name>) {
- if let Some(name) = opt_name {
- visitor.visit_name(span, name);
- }
-}
-
-pub fn walk_opt_sp_name<'v, V: Visitor<'v>>(visitor: &mut V, opt_sp_name: &Option<Spanned<Name>>) {
- if let Some(ref sp_name) = *opt_sp_name {
- visitor.visit_name(sp_name.span, sp_name.node);
- }
-}
-
/// Walks the contents of a crate. See also `Crate::visit_all_items`.
pub fn walk_crate<'v, V: Visitor<'v>>(visitor: &mut V, krate: &'v Crate) {
visitor.visit_mod(&krate.module, krate.span, CRATE_NODE_ID);
walk_list!(visitor, visit_ty, &local.ty);
}
+pub fn walk_label<'v, V: Visitor<'v>>(visitor: &mut V, label: &'v Label) {
+ visitor.visit_name(label.span, label.name);
+}
+
pub fn walk_lifetime<'v, V: Visitor<'v>>(visitor: &mut V, lifetime: &'v Lifetime) {
visitor.visit_id(lifetime.id);
match lifetime.name {
match item.node {
ItemExternCrate(opt_name) => {
visitor.visit_id(item.id);
- walk_opt_name(visitor, item.span, opt_name)
+ if let Some(name) = opt_name {
+ visitor.visit_name(item.span, name);
+ }
}
ItemUse(ref path, _) => {
visitor.visit_id(item.id);
visitor.visit_expr(if_block);
walk_list!(visitor, visit_expr, optional_else);
}
- ExprWhile(ref subexpression, ref block, ref opt_sp_name) => {
+ ExprWhile(ref subexpression, ref block, ref opt_label) => {
+ walk_list!(visitor, visit_label, opt_label);
visitor.visit_expr(subexpression);
visitor.visit_block(block);
- walk_opt_sp_name(visitor, opt_sp_name);
}
- ExprLoop(ref block, ref opt_sp_name, _) => {
+ ExprLoop(ref block, ref opt_label, _) => {
+ walk_list!(visitor, visit_label, opt_label);
visitor.visit_block(block);
- walk_opt_sp_name(visitor, opt_sp_name);
}
ExprMatch(ref subexpression, ref arms, _) => {
visitor.visit_expr(subexpression);
ExprPath(ref qpath) => {
visitor.visit_qpath(qpath, expression.id, expression.span);
}
- ExprBreak(label, ref opt_expr) => {
- label.ident.map(|ident| {
- match label.target_id {
+ ExprBreak(ref destination, ref opt_expr) => {
+ if let Some(ref label) = destination.label {
+ visitor.visit_label(label);
+ match destination.target_id {
ScopeTarget::Block(node_id) |
ScopeTarget::Loop(LoopIdResult::Ok(node_id)) =>
visitor.visit_def_mention(Def::Label(node_id)),
ScopeTarget::Loop(LoopIdResult::Err(_)) => {},
};
- visitor.visit_name(ident.span, ident.node.name);
- });
+ }
walk_list!(visitor, visit_expr, opt_expr);
}
- ExprAgain(label) => {
- label.ident.map(|ident| {
- match label.target_id {
+ ExprAgain(ref destination) => {
+ if let Some(ref label) = destination.label {
+ visitor.visit_label(label);
+ match destination.target_id {
ScopeTarget::Block(_) => bug!("can't `continue` to a non-loop block"),
ScopeTarget::Loop(LoopIdResult::Ok(node_id)) =>
visitor.visit_def_mention(Def::Label(node_id)),
ScopeTarget::Loop(LoopIdResult::Err(_)) => {},
};
- visitor.visit_name(ident.span, ident.node.name);
- });
+ }
}
ExprRet(ref optional_expression) => {
walk_list!(visitor, visit_expr, optional_expression);
*self.name_map.entry(ident).or_insert_with(|| Symbol::from_ident(ident))
}
- fn lower_opt_sp_ident(&mut self, o_id: Option<Spanned<Ident>>) -> Option<Spanned<Name>> {
- o_id.map(|sp_ident| respan(sp_ident.span, sp_ident.node.name))
+ fn lower_label(&mut self, label: Option<Label>) -> Option<hir::Label> {
+ label.map(|label| hir::Label { name: label.ident.name, span: label.span })
}
- fn lower_loop_destination(&mut self, destination: Option<(NodeId, Spanned<Ident>)>)
+ fn lower_loop_destination(&mut self, destination: Option<(NodeId, Label)>)
-> hir::Destination
{
match destination {
- Some((id, label_ident)) => {
+ Some((id, label)) => {
let target = if let Def::Label(loop_id) = self.expect_full_def(id) {
hir::LoopIdResult::Ok(self.lower_node_id(loop_id).node_id)
} else {
hir::LoopIdResult::Err(hir::LoopIdError::UnresolvedLabel)
};
hir::Destination {
- ident: Some(label_ident),
+ label: self.lower_label(Some(label)),
target_id: hir::ScopeTarget::Loop(target),
}
},
.map(|innermost_loop_id| *innermost_loop_id);
hir::Destination {
- ident: None,
+ label: None,
target_id: hir::ScopeTarget::Loop(
loop_id.map(|id| Ok(self.lower_node_id(id).node_id))
.unwrap_or(Err(hir::LoopIdError::OutsideLoopScope))
hir::ExprIf(P(self.lower_expr(cond)), P(then_expr), else_opt)
}
- ExprKind::While(ref cond, ref body, opt_ident) => {
+ ExprKind::While(ref cond, ref body, opt_label) => {
self.with_loop_scope(e.id, |this|
hir::ExprWhile(
this.with_loop_condition_scope(|this| P(this.lower_expr(cond))),
this.lower_block(body, false),
- this.lower_opt_sp_ident(opt_ident)))
+ this.lower_label(opt_label)))
}
- ExprKind::Loop(ref body, opt_ident) => {
+ ExprKind::Loop(ref body, opt_label) => {
self.with_loop_scope(e.id, |this|
hir::ExprLoop(this.lower_block(body, false),
- this.lower_opt_sp_ident(opt_ident),
+ this.lower_label(opt_label),
hir::LoopSource::Loop))
}
ExprKind::Catch(ref body) => {
hir::ExprPath(self.lower_qpath(e.id, qself, path, ParamMode::Optional,
ImplTraitContext::Disallowed))
}
- ExprKind::Break(opt_ident, ref opt_expr) => {
- let label_result = if self.is_in_loop_condition && opt_ident.is_none() {
+ ExprKind::Break(opt_label, ref opt_expr) => {
+ let destination = if self.is_in_loop_condition && opt_label.is_none() {
hir::Destination {
- ident: opt_ident,
+ label: None,
target_id: hir::ScopeTarget::Loop(
Err(hir::LoopIdError::UnlabeledCfInWhileCondition).into()),
}
} else {
- self.lower_loop_destination(opt_ident.map(|ident| (e.id, ident)))
+ self.lower_loop_destination(opt_label.map(|label| (e.id, label)))
};
hir::ExprBreak(
- label_result,
+ destination,
opt_expr.as_ref().map(|x| P(self.lower_expr(x))))
}
- ExprKind::Continue(opt_ident) =>
+ ExprKind::Continue(opt_label) =>
hir::ExprAgain(
- if self.is_in_loop_condition && opt_ident.is_none() {
+ if self.is_in_loop_condition && opt_label.is_none() {
hir::Destination {
- ident: opt_ident,
+ label: None,
target_id: hir::ScopeTarget::Loop(Err(
hir::LoopIdError::UnlabeledCfInWhileCondition).into()),
}
} else {
- self.lower_loop_destination(opt_ident.map( |ident| (e.id, ident)))
+ self.lower_loop_destination(opt_label.map(|label| (e.id, label)))
}),
ExprKind::Ret(ref e) => hir::ExprRet(e.as_ref().map(|x| P(self.lower_expr(x)))),
ExprKind::InlineAsm(ref asm) => {
// Desugar ExprWhileLet
// From: `[opt_ident]: while let <pat> = <sub_expr> <body>`
- ExprKind::WhileLet(ref pat, ref sub_expr, ref body, opt_ident) => {
+ ExprKind::WhileLet(ref pat, ref sub_expr, ref body, opt_label) => {
// to:
//
// [opt_ident]: loop {
// `[opt_ident]: loop { ... }`
let loop_block = P(self.block_expr(P(match_expr)));
- let loop_expr = hir::ExprLoop(loop_block, self.lower_opt_sp_ident(opt_ident),
+ let loop_expr = hir::ExprLoop(loop_block, self.lower_label(opt_label),
hir::LoopSource::WhileLet);
// add attributes to the outer returned expr node
loop_expr
// Desugar ExprForLoop
// From: `[opt_ident]: for <pat> in <head> <body>`
- ExprKind::ForLoop(ref pat, ref head, ref body, opt_ident) => {
+ ExprKind::ForLoop(ref pat, ref head, ref body, opt_label) => {
// to:
//
// {
None));
// `[opt_ident]: loop { ... }`
- let loop_expr = hir::ExprLoop(loop_block, self.lower_opt_sp_ident(opt_ident),
+ let loop_expr = hir::ExprLoop(loop_block, self.lower_label(opt_label),
hir::LoopSource::ForLoop);
let LoweredNodeId { node_id, hir_id } = self.lower_node_id(e.id);
let loop_expr = P(hir::Expr {
e.span,
hir::ExprBreak(
hir::Destination {
- ident: None,
+ label: None,
target_id: hir::ScopeTarget::Block(catch_node),
},
Some(from_err_expr)
use syntax_pos::{Span, DUMMY_SP};
use syntax::codemap::{self, Spanned};
use syntax::abi::Abi;
-use syntax::ast::{self, Ident, Name, NodeId, DUMMY_NODE_ID, AsmDialect};
+use syntax::ast::{self, Name, NodeId, DUMMY_NODE_ID, AsmDialect};
use syntax::ast::{Attribute, Lit, StrStyle, FloatTy, IntTy, UintTy, MetaItem};
use syntax::ext::hygiene::SyntaxContext;
use syntax::ptr::P;
pub const DUMMY_ITEM_LOCAL_ID: ItemLocalId = ItemLocalId(!0);
+#[derive(Clone, PartialEq, Eq, RustcEncodable, RustcDecodable, Hash, Copy)]
+pub struct Label {
+ pub name: Name,
+ pub span: Span,
+}
+
+impl fmt::Debug for Label {
+ fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+ write!(f, "label({:?})", self.name)
+ }
+}
+
#[derive(Clone, PartialEq, Eq, RustcEncodable, RustcDecodable, Hash, Copy)]
pub struct Lifetime {
pub id: NodeId,
/// A while loop, with an optional label
///
/// `'label: while expr { block }`
- ExprWhile(P<Expr>, P<Block>, Option<Spanned<Name>>),
+ ExprWhile(P<Expr>, P<Block>, Option<Label>),
/// Conditionless loop (can be exited with break, continue, or return)
///
/// `'label: loop { block }`
- ExprLoop(P<Block>, Option<Spanned<Name>>, LoopSource),
+ ExprLoop(P<Block>, Option<Label>, LoopSource),
/// A `match` block, with a source that indicates whether or not it is
/// the result of a desugaring, and if so, which kind.
ExprMatch(P<Expr>, HirVec<Arm>, MatchSource),
#[derive(Clone, PartialEq, Eq, RustcEncodable, RustcDecodable, Hash, Debug, Copy)]
pub struct Destination {
// This is `Some(_)` iff there is an explicit user-specified `label
- pub ident: Option<Spanned<Ident>>,
+ pub label: Option<Label>,
// These errors are caught and then reported during the diagnostics pass in
// librustc_passes/loops.rs
hir::ExprIf(ref test, ref blk, ref elseopt) => {
self.print_if(&test, &blk, elseopt.as_ref().map(|e| &**e))?;
}
- hir::ExprWhile(ref test, ref blk, opt_sp_name) => {
- if let Some(sp_name) = opt_sp_name {
- self.print_name(sp_name.node)?;
+ hir::ExprWhile(ref test, ref blk, opt_label) => {
+ if let Some(label) = opt_label {
+ self.print_name(label.name)?;
self.word_space(":")?;
}
self.head("while")?;
self.s.space()?;
self.print_block(&blk)?;
}
- hir::ExprLoop(ref blk, opt_sp_name, _) => {
- if let Some(sp_name) = opt_sp_name {
- self.print_name(sp_name.node)?;
+ hir::ExprLoop(ref blk, opt_label, _) => {
+ if let Some(label) = opt_label {
+ self.print_name(label.name)?;
self.word_space(":")?;
}
self.head("loop")?;
hir::ExprPath(ref qpath) => {
self.print_qpath(qpath, true)?
}
- hir::ExprBreak(label, ref opt_expr) => {
+ hir::ExprBreak(destination, ref opt_expr) => {
self.s.word("break")?;
self.s.space()?;
- if let Some(label_ident) = label.ident {
- self.print_name(label_ident.node.name)?;
+ if let Some(label) = destination.label {
+ self.print_name(label.name)?;
self.s.space()?;
}
if let Some(ref expr) = *opt_expr {
self.s.space()?;
}
}
- hir::ExprAgain(label) => {
+ hir::ExprAgain(destination) => {
self.s.word("continue")?;
self.s.space()?;
- if let Some(label_ident) = label.ident {
- self.print_name(label_ident.node.name)?;
+ if let Some(label) = destination.label {
+ self.print_name(label.name)?;
self.s.space()?
}
}
Name(name)
});
+impl_stable_hash_for!(struct hir::Label {
+ span,
+ name
+});
+
impl_stable_hash_for!(struct hir::Lifetime {
id,
span,
impl_stable_hash_for_spanned!(usize);
impl_stable_hash_for!(struct hir::Destination {
- ident,
+ label,
target_id
});
/// Describes constraints between the region variables and other
/// regions, as well as other conditions that must be verified, or
/// assumptions that can be made.
-#[derive(Default)]
+#[derive(Debug, Default)]
pub struct RegionConstraintData<'tcx> {
/// Constraints of the form `A <= B`, where either `A` or `B` can
/// be a region variable (or neither, as it happens).
fn expression_label(ex: &hir::Expr) -> Option<(ast::Name, Span)> {
match ex.node {
hir::ExprWhile(.., Some(label)) | hir::ExprLoop(_, Some(label), _) => {
- Some((label.node, label.span))
+ Some((label.name, label.span))
}
_ => None,
}
use syntax::ast::NodeId;
use syntax::symbol::InternedString;
-use ty::Instance;
+use ty::{Instance, TyCtxt};
use util::nodemap::FxHashMap;
use rustc_data_structures::base_n;
use rustc_data_structures::stable_hasher::{HashStable, StableHasherResult,
GlobalAsm(NodeId),
}
+impl<'tcx> MonoItem<'tcx> {
+ pub fn size_estimate<'a>(&self, tcx: &TyCtxt<'a, 'tcx, 'tcx>) -> usize {
+ match *self {
+ MonoItem::Fn(instance) => {
+ // Estimate the size of a function based on how many statements
+ // it contains.
+ tcx.instance_def_size_estimate(instance.def)
+ },
+ // Conservatively estimate the size of a static declaration
+ // or assembly to be 1.
+ MonoItem::Static(_) | MonoItem::GlobalAsm(_) => 1,
+ }
+ }
+}
+
impl<'tcx> HashStable<StableHashingContext<'tcx>> for MonoItem<'tcx> {
fn hash_stable<W: StableHasherResult>(&self,
hcx: &mut StableHashingContext<'tcx>,
/// as well as the crate name and disambiguator.
name: InternedString,
items: FxHashMap<MonoItem<'tcx>, (Linkage, Visibility)>,
+ size_estimate: Option<usize>,
}
#[derive(Copy, Clone, PartialEq, Eq, Hash, Debug)]
CodegenUnit {
name: name,
items: FxHashMap(),
+ size_estimate: None,
}
}
let hash = hash & ((1u128 << 80) - 1);
base_n::encode(hash, base_n::CASE_INSENSITIVE)
}
+
+ pub fn estimate_size<'a>(&mut self, tcx: &TyCtxt<'a, 'tcx, 'tcx>) {
+ // Estimate the size of a codegen unit as (approximately) the number of MIR
+ // statements it corresponds to.
+ self.size_estimate = Some(self.items.keys().map(|mi| mi.size_estimate(tcx)).sum());
+ }
+
+ pub fn size_estimate(&self) -> usize {
+ // Should only be called if `estimate_size` has previously been called.
+ self.size_estimate.expect("estimate_size must be called before getting a size_estimate")
+ }
+
+ pub fn modify_size_estimate(&mut self, delta: usize) {
+ assert!(self.size_estimate.is_some());
+ if let Some(size_estimate) = self.size_estimate {
+ self.size_estimate = Some(size_estimate + delta);
+ }
+ }
}
impl<'tcx> HashStable<StableHashingContext<'tcx>> for CodegenUnit<'tcx> {
let CodegenUnit {
ref items,
name,
+ // The size estimate is not relevant to the hash
+ size_estimate: _,
} = *self;
name.hash_stable(hcx, hasher);
SizeMin, // -Oz
}
+#[derive(Clone, Copy, PartialEq, Hash)]
+pub enum Lto {
+ /// Don't do any LTO whatsoever
+ No,
+
+ /// Do a full crate graph LTO. The flavor is determined by the compiler
+ /// (currently the default is "fat").
+ Yes,
+
+ /// Do a full crate graph LTO with ThinLTO
+ Thin,
+
+ /// Do a local graph LTO with ThinLTO (only relevant for multiple codegen
+ /// units).
+ ThinLocal,
+
+ /// Do a full crate graph LTO with "fat" LTO
+ Fat,
+}
+
#[derive(Clone, Copy, PartialEq, Hash)]
pub enum DebugInfoLevel {
NoDebugInfo,
// commands like `--emit llvm-ir` which they're often incompatible with
// if we otherwise use the defaults of rustc.
cli_forced_codegen_units: Option<usize> [UNTRACKED],
- cli_forced_thinlto: Option<bool> [UNTRACKED],
+ cli_forced_thinlto_off: bool [UNTRACKED],
}
);
debug_assertions: true,
actually_rustdoc: false,
cli_forced_codegen_units: None,
- cli_forced_thinlto: None,
+ cli_forced_thinlto_off: false,
}
}
Some("crate=integer");
pub const parse_unpretty: Option<&'static str> =
Some("`string` or `string=string`");
+ pub const parse_lto: Option<&'static str> =
+ Some("one of `thin`, `fat`, or omitted");
}
#[allow(dead_code)]
mod $mod_set {
- use super::{$struct_name, Passes, SomePasses, AllPasses, Sanitizer};
+ use super::{$struct_name, Passes, SomePasses, AllPasses, Sanitizer, Lto};
use rustc_back::{LinkerFlavor, PanicStrategy, RelroLevel};
use std::path::PathBuf;
_ => false,
}
}
+
+ fn parse_lto(slot: &mut Lto, v: Option<&str>) -> bool {
+ *slot = match v {
+ None => Lto::Yes,
+ Some("thin") => Lto::Thin,
+ Some("fat") => Lto::Fat,
+ Some(_) => return false,
+ };
+ true
+ }
}
) }
"extra arguments to append to the linker invocation (space separated)"),
link_dead_code: bool = (false, parse_bool, [UNTRACKED],
"don't let linker strip dead code (turning it on can be used for code coverage)"),
- lto: bool = (false, parse_bool, [TRACKED],
+ lto: Lto = (Lto::No, parse_lto, [TRACKED],
"perform LLVM link-time optimizations"),
target_cpu: Option<String> = (None, parse_opt_string, [TRACKED],
"select target processor (rustc --print target-cpus for details)"),
let mut cg = build_codegen_options(matches, error_format);
let mut codegen_units = cg.codegen_units;
- let mut thinlto = None;
+ let mut disable_thinlto = false;
// Issue #30063: if user requests llvm-related output to one
// particular path, disable codegen-units.
}
early_warn(error_format, "resetting to default -C codegen-units=1");
codegen_units = Some(1);
- thinlto = Some(false);
+ disable_thinlto = true;
}
}
_ => {
codegen_units = Some(1);
- thinlto = Some(false);
+ disable_thinlto = true;
}
}
}
(&None, &None) => None,
}.map(|m| PathBuf::from(m));
- if cg.lto && incremental.is_some() {
+ if cg.lto != Lto::No && incremental.is_some() {
early_error(error_format, "can't perform LTO when compiling incrementally");
}
debug_assertions,
actually_rustdoc: false,
cli_forced_codegen_units: codegen_units,
- cli_forced_thinlto: thinlto,
+ cli_forced_thinlto_off: disable_thinlto,
},
cfg)
}
use std::hash::Hash;
use std::path::PathBuf;
use std::collections::hash_map::DefaultHasher;
- use super::{Passes, CrateType, OptLevel, DebugInfoLevel,
+ use super::{Passes, CrateType, OptLevel, DebugInfoLevel, Lto,
OutputTypes, Externs, ErrorOutputType, Sanitizer};
use syntax::feature_gate::UnstableFeatures;
use rustc_back::{PanicStrategy, RelroLevel};
impl_dep_tracking_hash_via_hash!(RelroLevel);
impl_dep_tracking_hash_via_hash!(Passes);
impl_dep_tracking_hash_via_hash!(OptLevel);
+ impl_dep_tracking_hash_via_hash!(Lto);
impl_dep_tracking_hash_via_hash!(DebugInfoLevel);
impl_dep_tracking_hash_via_hash!(UnstableFeatures);
impl_dep_tracking_hash_via_hash!(Externs);
use lint;
use middle::cstore;
use session::config::{build_configuration, build_session_options_and_crate_config};
+ use session::config::Lto;
use session::build_session;
use std::collections::{BTreeMap, BTreeSet};
use std::iter::FromIterator;
// Make sure changing a [TRACKED] option changes the hash
opts = reference.clone();
- opts.cg.lto = true;
+ opts.cg.lto = Lto::Fat;
assert!(reference.dep_tracking_hash() != opts.dep_tracking_hash());
opts = reference.clone();
self.use_mir()
}
- pub fn lto(&self) -> bool {
- self.opts.cg.lto || self.target.target.options.requires_lto
+ /// Calculates the flavor of LTO to use for this compilation.
+ pub fn lto(&self) -> config::Lto {
+ // If our target has codegen requirements ignore the command line
+ if self.target.target.options.requires_lto {
+ return config::Lto::Fat
+ }
+
+ // If the user specified something, return that. If they only said `-C
+ // lto` and we've for whatever reason forced off ThinLTO via the CLI,
+ // then ensure we can't use a ThinLTO.
+ match self.opts.cg.lto {
+ config::Lto::No => {}
+ config::Lto::Yes if self.opts.cli_forced_thinlto_off => {
+ return config::Lto::Fat
+ }
+ other => return other,
+ }
+
+ // Ok at this point the target doesn't require anything and the user
+ // hasn't asked for anything. Our next decision is whether or not
+ // we enable "auto" ThinLTO where we use multiple codegen units and
+ // then do ThinLTO over those codegen units. The logic below will
+ // either return `No` or `ThinLocal`.
+
+ // If processing command line options determined that we're incompatible
+ // with ThinLTO (e.g. `-C lto --emit llvm-ir`) then return that option.
+ if self.opts.cli_forced_thinlto_off {
+ return config::Lto::No
+ }
+
+ // If `-Z thinlto` specified process that, but note that this is mostly
+ // a deprecated option now that `-C lto=thin` exists.
+ if let Some(enabled) = self.opts.debugging_opts.thinlto {
+ if enabled {
+ return config::Lto::ThinLocal
+ } else {
+ return config::Lto::No
+ }
+ }
+
+ // If there's only one codegen unit and LTO isn't enabled then there's
+ // no need for ThinLTO so just return false.
+ if self.codegen_units() == 1 {
+ return config::Lto::No
+ }
+
+ // Right now ThinLTO isn't compatible with incremental compilation.
+ if self.opts.incremental.is_some() {
+ return config::Lto::No
+ }
+
+ // Now we're in "defaults" territory. By default we enable ThinLTO for
+ // optimized compiles (anything greater than O0).
+ match self.opts.optimize {
+ config::OptLevel::No => config::Lto::No,
+ _ => config::Lto::ThinLocal,
+ }
}
+
/// 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 {
// scientific.
16
}
-
- /// Returns whether ThinLTO is enabled for this compilation
- pub fn thinlto(&self) -> bool {
- // If processing command line options determined that we're incompatible
- // with ThinLTO (e.g. `-C lto --emit llvm-ir`) then return that option.
- if let Some(enabled) = self.opts.cli_forced_thinlto {
- return enabled
- }
-
- // If explicitly specified, use that with the next highest priority
- if let Some(enabled) = self.opts.debugging_opts.thinlto {
- return enabled
- }
-
- // If there's only one codegen unit and LTO isn't enabled then there's
- // no need for ThinLTO so just return false.
- if self.codegen_units() == 1 && !self.lto() {
- return false
- }
-
- // Right now ThinLTO isn't compatible with incremental compilation.
- if self.opts.incremental.is_some() {
- return false
- }
-
- // Now we're in "defaults" territory. By default we enable ThinLTO for
- // optimized compiles (anything greater than O0).
- match self.opts.optimize {
- config::OptLevel::No => false,
- _ => true,
- }
- }
}
pub fn build_session(sopts: config::Options,
pub err: ty::error::TypeError<'tcx>
}
-#[derive(PartialEq, Eq, Debug)]
+#[derive(PartialEq, Eq, PartialOrd, Ord, Debug)]
enum ProjectionTyCandidate<'tcx> {
// from a where-clause in the env or object type
ParamEnv(ty::PolyProjectionPredicate<'tcx>),
Reveal::UserFacing => ty,
Reveal::All => {
+ let recursion_limit = self.tcx().sess.recursion_limit.get();
+ if self.depth >= recursion_limit {
+ let obligation = Obligation::with_depth(
+ self.cause.clone(),
+ recursion_limit,
+ self.param_env,
+ ty,
+ );
+ self.selcx.infcx().report_overflow_error(&obligation, true);
+ }
+
let generic_ty = self.tcx().type_of(def_id);
let concrete_ty = generic_ty.subst(self.tcx(), substs);
- self.fold_ty(concrete_ty)
+ self.depth += 1;
+ let folded_ty = self.fold_ty(concrete_ty);
+ self.depth -= 1;
+ folded_ty
}
}
}
// Drop duplicates.
//
// Note: `candidates.vec` seems to be on the critical path of the
- // compiler. Replacing it with an hash set was also tried, which would
- // render the following dedup unnecessary. It led to cleaner code but
- // prolonged compiling time of `librustc` from 5m30s to 6m in one test, or
- // ~9% performance lost.
- if candidates.vec.len() > 1 {
- let mut i = 0;
- while i < candidates.vec.len() {
- let has_dup = (0..i).any(|j| candidates.vec[i] == candidates.vec[j]);
- if has_dup {
- candidates.vec.swap_remove(i);
- } else {
- i += 1;
- }
- }
- }
+ // compiler. Replacing it with an HashSet was also tried, which would
+ // render the following dedup unnecessary. The original comment indicated
+ // that it was 9% slower, but that data is now obsolete and a new
+ // benchmark should be performed.
+ candidates.vec.sort_unstable();
+ candidates.vec.dedup();
// Prefer where-clauses. As in select, if there are multiple
// candidates, we prefer where-clause candidates over impls. This
}))
},
TyArray(ty, len) => {
- if len.val.to_const_int().and_then(|i| i.to_u64()) == Some(0) {
- DefIdForest::empty()
- } else {
- ty.uninhabited_from(visited, tcx)
+ match len.val.to_const_int().and_then(|i| i.to_u64()) {
+ // If the array is definitely non-empty, it's uninhabited if
+ // the type of its elements is uninhabited.
+ Some(n) if n != 0 => ty.uninhabited_from(visited, tcx),
+ _ => DefIdForest::empty()
}
}
TyRef(_, ref tm) => {
}
fn try_load_from_disk<'a>(tcx: TyCtxt<'a, 'tcx, 'tcx>,
- id: SerializedDepNodeIndex)
- -> Option<Self::Value> {
+ id: SerializedDepNodeIndex)
+ -> Option<Self::Value> {
let mir: Option<::mir::Mir<'tcx>> = tcx.on_disk_query_result_cache
.try_load_query_result(tcx, id);
mir.map(|x| tcx.alloc_mir(x))
}
}
+impl<'tcx> QueryDescription<'tcx> for queries::instance_def_size_estimate<'tcx> {
+ fn describe(tcx: TyCtxt, def: ty::InstanceDef<'tcx>) -> String {
+ format!("estimating size for `{}`", tcx.item_path_str(def.def_id()))
+ }
+}
+
+impl<'tcx> QueryDescription<'tcx> for queries::generics_of<'tcx> {
+ #[inline]
+ fn cache_on_disk(def_id: Self::Key) -> bool {
+ def_id.is_local()
+ }
+
+ fn try_load_from_disk<'a>(tcx: TyCtxt<'a, 'tcx, 'tcx>,
+ id: SerializedDepNodeIndex)
+ -> Option<Self::Value> {
+ let generics: Option<ty::Generics> = tcx.on_disk_query_result_cache
+ .try_load_query_result(tcx, id);
+ generics.map(|x| tcx.alloc_generics(x))
+ }
+}
+
macro_rules! impl_disk_cacheable_query(
($query_name:ident, |$key:tt| $cond:expr) => {
impl<'tcx> QueryDescription<'tcx> for queries::$query_name<'tcx> {
impl_disk_cacheable_query!(check_match, |def_id| def_id.is_local());
impl_disk_cacheable_query!(contains_extern_indicator, |_| true);
impl_disk_cacheable_query!(def_symbol_name, |_| true);
+impl_disk_cacheable_query!(type_of, |def_id| def_id.is_local());
+impl_disk_cacheable_query!(predicates_of, |def_id| def_id.is_local());
+impl_disk_cacheable_query!(used_trait_imports, |def_id| def_id.is_local());
target_features_whitelist_node(CrateNum) -> Rc<FxHashSet<String>>,
[] fn target_features_enabled: TargetFeaturesEnabled(DefId) -> Rc<Vec<String>>,
+ // Get an estimate of the size of an InstanceDef based on its MIR for CGU partitioning.
+ [] fn instance_def_size_estimate: instance_def_size_estimate_dep_node(ty::InstanceDef<'tcx>)
+ -> usize,
}
//////////////////////////////////////////////////////////////////////
fn target_features_whitelist_node<'tcx>(_: CrateNum) -> DepConstructor<'tcx> {
DepConstructor::TargetFeaturesWhitelist
}
+
+fn instance_def_size_estimate_dep_node<'tcx>(instance_def: ty::InstanceDef<'tcx>)
+ -> DepConstructor<'tcx> {
+ DepConstructor::InstanceDefSizeEstimate {
+ instance_def
+ }
+}
let enc = &mut encoder;
let qri = &mut query_result_index;
- // Encode TypeckTables
+ encode_query_results::<type_of, _>(tcx, enc, qri)?;
+ encode_query_results::<generics_of, _>(tcx, enc, qri)?;
+ encode_query_results::<predicates_of, _>(tcx, enc, qri)?;
+ encode_query_results::<used_trait_imports, _>(tcx, enc, qri)?;
encode_query_results::<typeck_tables_of, _>(tcx, enc, qri)?;
+ encode_query_results::<trans_fulfill_obligation, _>(tcx, enc, qri)?;
encode_query_results::<optimized_mir, _>(tcx, enc, qri)?;
encode_query_results::<unsafety_check_result, _>(tcx, enc, qri)?;
encode_query_results::<borrowck, _>(tcx, enc, qri)?;
encode_query_results::<const_is_rvalue_promotable_to_static, _>(tcx, enc, qri)?;
encode_query_results::<contains_extern_indicator, _>(tcx, enc, qri)?;
encode_query_results::<symbol_name, _>(tcx, enc, qri)?;
- encode_query_results::<trans_fulfill_obligation, _>(tcx, enc, qri)?;
encode_query_results::<check_match, _>(tcx, enc, qri)?;
}
DepKind::EraseRegionsTy |
DepKind::NormalizeTy |
DepKind::SubstituteNormalizeAndTestPredicates |
+ DepKind::InstanceDefSizeEstimate |
// This one should never occur in this context
DepKind::Null => {
ConstIsRvaluePromotableToStatic => const_is_rvalue_promotable_to_static,
ContainsExternIndicator => contains_extern_indicator,
CheckMatch => check_match,
+ TypeOfItem => type_of,
+ GenericsOfItem => generics_of,
+ PredicatesOfItem => predicates_of,
+ UsedTraitImports => used_trait_imports,
);
use hir::{map as hir_map, FreevarMap, TraitMap};
use hir::def::{Def, CtorKind, ExportMap};
-use hir::def_id::{CrateNum, DefId, DefIndex, LocalDefId, CRATE_DEF_INDEX, LOCAL_CRATE};
+use hir::def_id::{CrateNum, DefId, LocalDefId, CRATE_DEF_INDEX, LOCAL_CRATE};
use hir::map::DefPathData;
use hir::svh::Svh;
use ich::Fingerprint;
use serialize::{self, Encodable, Encoder};
use std::cell::RefCell;
-use std::collections::BTreeMap;
use std::cmp;
+use std::cmp::Ordering;
use std::fmt;
use std::hash::{Hash, Hasher};
use std::iter::FromIterator;
}
}
+impl<'tcx> Ord for TyS<'tcx> {
+ #[inline]
+ fn cmp(&self, other: &TyS<'tcx>) -> Ordering {
+ // (self as *const _).cmp(other as *const _)
+ (self as *const TyS<'tcx>).cmp(&(other as *const TyS<'tcx>))
+ }
+}
+impl<'tcx> PartialOrd for TyS<'tcx> {
+ #[inline]
+ fn partial_cmp(&self, other: &TyS<'tcx>) -> Option<Ordering> {
+ Some(self.cmp(other))
+ }
+}
+
impl<'tcx> TyS<'tcx> {
pub fn is_primitive_ty(&self) -> bool {
match self.sty {
}
impl<T> Eq for Slice<T> {}
+impl<T> Ord for Slice<T> {
+ #[inline]
+ fn cmp(&self, other: &Slice<T>) -> Ordering {
+ (&self.0 as *const [T]).cmp(&(&other.0 as *const [T]))
+ }
+}
+impl<T> PartialOrd for Slice<T> {
+ #[inline]
+ fn partial_cmp(&self, other: &Slice<T>) -> Option<Ordering> {
+ Some(self.cmp(other))
+ }
+}
+
impl<T> Hash for Slice<T> {
fn hash<H: Hasher>(&self, s: &mut H) {
(self.as_ptr(), self.len()).hash(s)
pub regions: Vec<RegionParameterDef>,
pub types: Vec<TypeParameterDef>,
- /// Reverse map to each `TypeParameterDef`'s `index` field, from
- /// `def_id.index` (`def_id.krate` is the same as the item's).
- pub type_param_to_index: BTreeMap<DefIndex, u32>,
+ /// Reverse map to each `TypeParameterDef`'s `index` field
+ pub type_param_to_index: FxHashMap<DefId, u32>,
pub has_self: bool,
pub has_late_bound_regions: Option<Span>,
/// equality between arbitrary types. Processing an instance of
/// Form #2 eventually yields one of these `ProjectionPredicate`
/// instances to normalize the LHS.
-#[derive(Copy, Clone, PartialEq, Eq, Hash, RustcEncodable, RustcDecodable)]
+#[derive(Copy, Clone, PartialEq, Eq, PartialOrd, Ord, Hash, RustcEncodable, RustcDecodable)]
pub struct ProjectionPredicate<'tcx> {
pub projection_ty: ProjectionTy<'tcx>,
pub ty: Ty<'tcx>,
tcx.hir.crate_hash
}
+fn instance_def_size_estimate<'a, 'tcx>(tcx: TyCtxt<'a, 'tcx, 'tcx>,
+ instance_def: InstanceDef<'tcx>)
+ -> usize {
+ match instance_def {
+ InstanceDef::Item(..) |
+ InstanceDef::DropGlue(..) => {
+ let mir = tcx.instance_mir(instance_def);
+ mir.basic_blocks().iter().map(|bb| bb.statements.len()).sum()
+ },
+ // Estimate the size of other compiler-generated shims to be 1.
+ _ => 1
+ }
+}
+
pub fn provide(providers: &mut ty::maps::Providers) {
context::provide(providers);
erase_regions::provide(providers);
original_crate_name,
crate_hash,
trait_impls_of: trait_def::trait_impls_of_provider,
+ instance_def_size_estimate,
..*providers
};
}
/// erase, or otherwise "discharge" these bound regions, we change the
/// type from `Binder<T>` to just `T` (see
/// e.g. `liberate_late_bound_regions`).
-#[derive(Copy, Clone, PartialEq, Eq, Hash, Debug, RustcEncodable, RustcDecodable)]
+#[derive(Copy, Clone, PartialEq, Eq, PartialOrd, Ord, Hash, Debug, RustcEncodable, RustcDecodable)]
pub struct Binder<T>(pub T);
impl<T> Binder<T> {
/// Represents the projection of an associated type. In explicit UFCS
/// form this would be written `<T as Trait<..>>::N`.
-#[derive(Copy, Clone, PartialEq, Eq, Hash, Debug, RustcEncodable, RustcDecodable)]
+#[derive(Copy, Clone, PartialEq, Eq, PartialOrd, Ord, Hash, Debug, RustcEncodable, RustcDecodable)]
pub struct ProjectionTy<'tcx> {
/// The parameters of the associated item.
pub substs: &'tcx Substs<'tcx>,
/// To reduce memory usage, a `Kind` is a interned pointer,
/// with the lowest 2 bits being reserved for a tag to
/// indicate the type (`Ty` or `Region`) it points to.
-#[derive(Copy, Clone, PartialEq, Eq, Hash)]
+#[derive(Copy, Clone, PartialEq, Eq, PartialOrd, Ord, Hash)]
pub struct Kind<'tcx> {
ptr: NonZero<usize>,
marker: PhantomData<(Ty<'tcx>, ty::Region<'tcx>)>
/// Relocation model to use in object file. Corresponds to `llc
/// -relocation-model=$relocation_model`. Defaults to "pic".
pub relocation_model: String,
- /// Code model to use. Corresponds to `llc -code-model=$code_model`. Defaults to "default".
- pub code_model: String,
+ /// Code model to use. Corresponds to `llc -code-model=$code_model`.
+ pub code_model: Option<String>,
/// TLS model to use. Options are "global-dynamic" (default), "local-dynamic", "initial-exec"
/// and "local-exec". This is similar to the -ftls-model option in GCC/Clang.
pub tls_model: String,
only_cdylib: false,
executables: false,
relocation_model: "pic".to_string(),
- code_model: "default".to_string(),
+ code_model: None,
tls_model: "global-dynamic".to_string(),
disable_redzone: false,
eliminate_frame_pointer: true,
key!(only_cdylib, bool);
key!(executables, bool);
key!(relocation_model);
- key!(code_model);
+ key!(code_model, optional);
key!(tls_model);
key!(disable_redzone, bool);
key!(eliminate_frame_pointer, bool);
#[repr(C)]
pub enum CodeModel {
Other,
- Default,
- JITDefault,
Small,
Kernel,
Medium,
Large,
+ None,
}
/// LLVMRustDiagnosticKind
pub enum ArchiveKind {
Other,
K_GNU,
- K_MIPS64,
K_BSD,
K_COFF,
}
const FlagStaticMember = (1 << 12);
const FlagLValueReference = (1 << 13);
const FlagRValueReference = (1 << 14);
+ const FlagExternalTypeRef = (1 << 15);
+ const FlagIntroducedVirtual = (1 << 18);
+ const FlagBitField = (1 << 19);
+ const FlagNoReturn = (1 << 20);
const FlagMainSubprogram = (1 << 21);
}
}
fn from_str(s: &str) -> Result<Self, Self::Err> {
match s {
"gnu" => Ok(ArchiveKind::K_GNU),
- "mips64" => Ok(ArchiveKind::K_MIPS64),
"bsd" => Ok(ArchiveKind::K_BSD),
"coff" => Ok(ArchiveKind::K_COFF),
_ => Err(()),
let data = self.infcx.take_and_reset_region_constraints();
if !data.is_empty() {
+ debug!("fully_perform_op: constraints generated at {:?} are {:#?}",
+ locations, data);
self.constraints
.outlives_sets
.push(OutlivesSet { locations, data });
where
T: fmt::Debug + TypeFoldable<'tcx>,
{
+ debug!("normalize(value={:?}, location={:?})", value, location);
self.fully_perform_op(location.at_self(), |this| {
let mut selcx = traits::SelectionContext::new(this.infcx);
let cause = this.misc(this.last_span);
use syntax::symbol::{Symbol, InternedString};
use rustc::mir::mono::MonoItem;
use monomorphize::item::{MonoItemExt, InstantiationMode};
+use core::usize;
pub use rustc::mir::mono::CodegenUnit;
let mut initial_partitioning = place_root_translation_items(tcx,
trans_items);
+ initial_partitioning.codegen_units.iter_mut().for_each(|cgu| cgu.estimate_size(&tcx));
+
debug_dump(tcx, "INITIAL PARTITIONING:", initial_partitioning.codegen_units.iter());
// If the partitioning should produce a fixed count of codegen units, merge
let mut post_inlining = place_inlined_translation_items(initial_partitioning,
inlining_map);
+ post_inlining.codegen_units.iter_mut().for_each(|cgu| cgu.estimate_size(&tcx));
+
debug_dump(tcx, "POST INLINING:", post_inlining.codegen_units.iter());
// Next we try to make as many symbols "internal" as possible, so LLVM has
codegen_units.sort_by_key(|cgu| cgu.name().clone());
// Merge the two smallest codegen units until the target size is reached.
- // Note that "size" is estimated here rather inaccurately as the number of
- // translation items in a given unit. This could be improved on.
while codegen_units.len() > target_cgu_count {
// Sort small cgus to the back
- codegen_units.sort_by_key(|cgu| -(cgu.items().len() as i64));
+ codegen_units.sort_by_key(|cgu| usize::MAX - cgu.size_estimate());
let mut smallest = codegen_units.pop().unwrap();
let second_smallest = codegen_units.last_mut().unwrap();
+ second_smallest.modify_size_estimate(smallest.size_estimate());
for (k, v) in smallest.items_mut().drain() {
second_smallest.items_mut().insert(k, v);
}
impl<'a> Visitor<'a> for AstValidator<'a> {
fn visit_expr(&mut self, expr: &'a Expr) {
match expr.node {
- ExprKind::While(.., Some(ident)) |
- ExprKind::Loop(_, Some(ident)) |
- ExprKind::WhileLet(.., Some(ident)) |
- ExprKind::ForLoop(.., Some(ident)) |
- ExprKind::Break(Some(ident), _) |
- ExprKind::Continue(Some(ident)) => {
- self.check_label(ident.node, ident.span);
- }
ExprKind::InlineAsm(..) if !self.session.target.target.options.allow_asm => {
span_err!(self.session, expr.span, E0472, "asm! is unsupported on this target");
}
visit::walk_use_tree(self, use_tree, id);
}
+ fn visit_label(&mut self, label: &'a Label) {
+ self.check_label(label.ident, label.span);
+ visit::walk_label(self, label);
+ }
+
fn visit_lifetime(&mut self, lifetime: &'a Lifetime) {
self.check_lifetime(lifetime);
visit::walk_lifetime(self, lifetime);
use syntax::ast::{Arm, BindingMode, Block, Crate, Expr, ExprKind};
use syntax::ast::{FnDecl, ForeignItem, ForeignItemKind, GenericParam, Generics};
use syntax::ast::{Item, ItemKind, ImplItem, ImplItemKind};
-use syntax::ast::{Local, Mutability, Pat, PatKind, Path};
+use syntax::ast::{Label, Local, Mutability, Pat, PatKind, Path};
use syntax::ast::{QSelf, TraitItemKind, TraitRef, Ty, TyKind};
use syntax::feature_gate::{feature_err, emit_feature_err, GateIssue};
use syntax::parse::token;
segments: vec![],
span: use_tree.span,
};
- self.resolve_use_tree(item, use_tree, &path);
+ self.resolve_use_tree(item.id, use_tree, &path);
}
ItemKind::ExternCrate(_) | ItemKind::MacroDef(..) | ItemKind::GlobalAsm(_) => {
}
}
- fn resolve_use_tree(&mut self, item: &Item, use_tree: &ast::UseTree, prefix: &Path) {
+ fn resolve_use_tree(&mut self, id: NodeId, use_tree: &ast::UseTree, prefix: &Path) {
match use_tree.kind {
ast::UseTreeKind::Nested(ref items) => {
let path = Path {
if items.len() == 0 {
// Resolve prefix of an import with empty braces (issue #28388).
- self.smart_resolve_path(item.id, None, &path, PathSource::ImportPrefix);
+ self.smart_resolve_path(id, None, &path, PathSource::ImportPrefix);
} else {
- for &(ref tree, _) in items {
- self.resolve_use_tree(item, tree, &path);
+ for &(ref tree, nested_id) in items {
+ self.resolve_use_tree(nested_id, tree, &path);
}
}
}
}
}
- fn with_resolved_label<F>(&mut self, label: Option<SpannedIdent>, id: NodeId, f: F)
+ fn with_resolved_label<F>(&mut self, label: Option<Label>, id: NodeId, f: F)
where F: FnOnce(&mut Resolver)
{
if let Some(label) = label {
let def = Def::Label(id);
self.with_label_rib(|this| {
- this.label_ribs.last_mut().unwrap().bindings.insert(label.node, def);
+ this.label_ribs.last_mut().unwrap().bindings.insert(label.ident, def);
f(this);
});
} else {
}
}
- fn resolve_labeled_block(&mut self, label: Option<SpannedIdent>, id: NodeId, block: &Block) {
+ fn resolve_labeled_block(&mut self, label: Option<Label>, id: NodeId, block: &Block) {
self.with_resolved_label(label, id, |this| this.visit_block(block));
}
}
ExprKind::Break(Some(label), _) | ExprKind::Continue(Some(label)) => {
- match self.search_label(label.node, |rib, id| rib.bindings.get(&id).cloned()) {
+ match self.search_label(label.ident, |rib, id| rib.bindings.get(&id).cloned()) {
None => {
// Search again for close matches...
// Picks the first label that is "close enough", which is not necessarily
// the closest match
- let close_match = self.search_label(label.node, |rib, ident| {
+ let close_match = self.search_label(label.ident, |rib, ident| {
let names = rib.bindings.iter().map(|(id, _)| &id.name);
find_best_match_for_name(names, &*ident.name.as_str(), None)
});
self.record_def(expr.id, err_path_resolution());
resolve_error(self,
label.span,
- ResolutionError::UndeclaredLabel(&label.node.name.as_str(),
+ ResolutionError::UndeclaredLabel(&label.ident.name.as_str(),
close_match));
}
Some(def @ Def::Label(_)) => {
use super::rpath;
use metadata::METADATA_FILENAME;
use rustc::session::config::{self, NoDebugInfo, OutputFilenames, OutputType, PrintRequest};
-use rustc::session::config::RUST_CGU_EXT;
+use rustc::session::config::{RUST_CGU_EXT, Lto};
use rustc::session::filesearch;
use rustc::session::search_paths::PathKind;
use rustc::session::Session;
});
ab.add_rlib(path,
&name.as_str(),
- sess.lto() && !ignored_for_lto(sess, &trans.crate_info, cnum),
+ is_full_lto_enabled(sess) &&
+ !ignored_for_lto(sess, &trans.crate_info, cnum),
skip_object_files).unwrap();
all_native_libs.extend(trans.crate_info.native_libraries[&cnum].iter().cloned());
lib.kind == NativeLibraryKind::NativeStatic && !relevant_lib(sess, lib)
});
- if (!sess.lto() || ignored_for_lto(sess, &trans.crate_info, cnum)) &&
+ if (!is_full_lto_enabled(sess) ||
+ ignored_for_lto(sess, &trans.crate_info, cnum)) &&
crate_type != config::CrateTypeDylib &&
!skip_native {
cmd.link_rlib(&fix_windows_verbatim_for_gcc(cratepath));
// file, then we don't need the object file as it's part of the
// LTO module. Note that `#![no_builtins]` is excluded from LTO,
// though, so we let that object file slide.
- let skip_because_lto = sess.lto() &&
+ let skip_because_lto = is_full_lto_enabled(sess) &&
is_rust_object &&
(sess.target.target.options.no_builtins ||
!trans.crate_info.is_no_builtins.contains(&cnum));
fn add_dynamic_crate(cmd: &mut Linker, sess: &Session, cratepath: &Path) {
// If we're performing LTO, then it should have been previously required
// that all upstream rust dependencies were available in an rlib format.
- assert!(!sess.lto());
+ assert!(!is_full_lto_enabled(sess));
// Just need to tell the linker about where the library lives and
// what its name is
e));
}
}
+
+fn is_full_lto_enabled(sess: &Session) -> bool {
+ match sess.lto() {
+ Lto::Yes |
+ Lto::Thin |
+ Lto::Fat => true,
+ Lto::No |
+ Lto::ThinLocal => false,
+ }
+}
use llvm;
use rustc::hir::def_id::LOCAL_CRATE;
use rustc::middle::exported_symbols::SymbolExportLevel;
-use rustc::session::config;
+use rustc::session::config::{self, Lto};
use rustc::util::common::time;
use time_graph::Timeline;
use {ModuleTranslation, ModuleLlvm, ModuleKind, ModuleSource};
}
}
-pub enum LTOMode {
- WholeCrateGraph,
- JustThisCrate,
-}
-
pub(crate) fn run(cgcx: &CodegenContext,
- modules: Vec<ModuleTranslation>,
- mode: LTOMode,
- timeline: &mut Timeline)
+ modules: Vec<ModuleTranslation>,
+ timeline: &mut Timeline)
-> Result<Vec<LtoModuleTranslation>, FatalError>
{
let diag_handler = cgcx.create_diag_handler();
- let export_threshold = match mode {
- LTOMode::WholeCrateGraph => {
+ let export_threshold = match cgcx.lto {
+ // We're just doing LTO for our one crate
+ Lto::ThinLocal => SymbolExportLevel::Rust,
+
+ // We're doing LTO for the entire crate graph
+ Lto::Yes | Lto::Fat | Lto::Thin => {
symbol_export::crates_export_threshold(&cgcx.crate_types)
}
- LTOMode::JustThisCrate => {
- SymbolExportLevel::Rust
- }
+
+ Lto::No => panic!("didn't request LTO but we're doing LTO"),
};
let symbol_filter = &|&(ref name, _, level): &(String, _, SymbolExportLevel)| {
// We save off all the bytecode and LLVM module ids for later processing
// with either fat or thin LTO
let mut upstream_modules = Vec::new();
- if let LTOMode::WholeCrateGraph = mode {
+ if cgcx.lto != Lto::ThinLocal {
if cgcx.opts.cg.prefer_dynamic {
diag_handler.struct_err("cannot prefer dynamic linking when performing LTO")
.note("only 'staticlib', 'bin', and 'cdylib' outputs are \
}
let arr = symbol_white_list.iter().map(|c| c.as_ptr()).collect::<Vec<_>>();
- match mode {
- LTOMode::WholeCrateGraph if !cgcx.thinlto => {
+ match cgcx.lto {
+ Lto::Yes | // `-C lto` == fat LTO by default
+ Lto::Fat => {
fat_lto(cgcx, &diag_handler, modules, upstream_modules, &arr, timeline)
}
- _ => {
+ Lto::Thin |
+ Lto::ThinLocal => {
thin_lto(&diag_handler, modules, upstream_modules, &arr, timeline)
}
+ Lto::No => unreachable!(),
}
}
use back::bytecode::{self, RLIB_BYTECODE_EXTENSION};
use back::lto::{self, ModuleBuffer, ThinBuffer};
use back::link::{self, get_linker, remove};
+use back::command::Command;
use back::linker::LinkerInfo;
use back::symbol_export::ExportedSymbols;
use base;
use rustc_incremental::{save_trans_partition, in_incr_comp_dir};
use rustc::dep_graph::{DepGraph, WorkProductFileKind};
use rustc::middle::cstore::{LinkMeta, EncodedMetadata};
-use rustc::session::config::{self, OutputFilenames, OutputType, OutputTypes, Passes, SomePasses,
- AllPasses, Sanitizer};
+use rustc::session::config::{self, OutputFilenames, OutputType, Passes, SomePasses,
+ AllPasses, Sanitizer, Lto};
use rustc::session::Session;
use rustc::util::nodemap::FxHashMap;
use rustc_back::LinkerFlavor;
use rustc::hir::def_id::{CrateNum, LOCAL_CRATE};
use rustc::ty::TyCtxt;
use rustc::util::common::{time, time_depth, set_time_depth, path2cstr, print_time_passes_entry};
-use rustc::util::fs::{link_or_copy, rename_or_copy_remove};
+use rustc::util::fs::{link_or_copy};
use errors::{self, Handler, Level, DiagnosticBuilder, FatalError, DiagnosticId};
use errors::emitter::{Emitter};
use syntax::attr;
("ropi-rwpi", llvm::RelocMode::ROPI_RWPI),
];
-pub const CODE_GEN_MODEL_ARGS : [(&'static str, llvm::CodeModel); 5] = [
- ("default", llvm::CodeModel::Default),
+pub const CODE_GEN_MODEL_ARGS: &[(&str, llvm::CodeModel)] = &[
("small", llvm::CodeModel::Small),
("kernel", llvm::CodeModel::Kernel),
("medium", llvm::CodeModel::Medium),
let ffunction_sections = sess.target.target.options.function_sections;
let fdata_sections = ffunction_sections;
- let code_model_arg = match sess.opts.cg.code_model {
- Some(ref s) => &s,
- None => &sess.target.target.options.code_model,
- };
-
- let code_model = match CODE_GEN_MODEL_ARGS.iter().find(
- |&&arg| arg.0 == code_model_arg) {
- Some(x) => x.1,
- _ => {
- sess.err(&format!("{:?} is not a valid code model",
- code_model_arg));
- sess.abort_if_errors();
- bug!();
+ let code_model_arg = sess.opts.cg.code_model.as_ref().or(
+ sess.target.target.options.code_model.as_ref(),
+ );
+
+ let code_model = match code_model_arg {
+ Some(s) => {
+ match CODE_GEN_MODEL_ARGS.iter().find(|arg| arg.0 == s) {
+ Some(x) => x.1,
+ _ => {
+ sess.err(&format!("{:?} is not a valid code model",
+ code_model_arg));
+ sess.abort_if_errors();
+ bug!();
+ }
+ }
}
+ None => llvm::CodeModel::None,
};
let singlethread = sess.target.target.options.singlethread;
// make the object file bitcode. Provides easy compatibility with
// emscripten's ecc compiler, when used as the linker.
obj_is_bitcode: bool,
+ no_integrated_as: bool,
}
impl ModuleConfig {
emit_asm: false,
emit_obj: false,
obj_is_bitcode: false,
+ no_integrated_as: false,
no_verify: false,
no_prepopulate_passes: false,
}
}
+/// Assembler name and command used by codegen when no_integrated_as is enabled
+struct AssemblerCommand {
+ name: PathBuf,
+ cmd: Command,
+}
+
/// Additional resources used by optimize_and_codegen (not module specific)
#[derive(Clone)]
pub struct CodegenContext {
// Resouces needed when running LTO
pub time_passes: bool,
- pub lto: bool,
- pub thinlto: bool,
+ pub lto: Lto,
pub no_landing_pads: bool,
pub save_temps: bool,
pub fewer_names: bool,
// A reference to the TimeGraph so we can register timings. None means that
// measuring is disabled.
time_graph: Option<TimeGraph>,
+ // The assembler command if no_integrated_as option is enabled, None otherwise
+ assembler_cmd: Option<Arc<AssemblerCommand>>,
}
impl CodegenContext {
TRANS_WORK_PACKAGE_KIND,
"generate lto")
}).unwrap_or(Timeline::noop());
- let mode = if cgcx.lto {
- lto::LTOMode::WholeCrateGraph
- } else {
- lto::LTOMode::JustThisCrate
- };
- let lto_modules = lto::run(cgcx, modules, mode, &mut timeline)
+ let lto_modules = lto::run(cgcx, modules, &mut timeline)
.unwrap_or_else(|e| e.raise());
lto_modules.into_iter().map(|module| {
!cgcx.crate_types.contains(&config::CrateTypeRlib) &&
mtrans.kind == ModuleKind::Regular;
+ // If we don't have the integrated assembler, then we need to emit asm
+ // from LLVM and use `gcc` to create the object file.
+ let asm_to_obj = config.emit_obj && config.no_integrated_as;
+
// Change what we write and cleanup based on whether obj files are
// just llvm bitcode. In that case write bitcode, and possibly
// delete the bitcode if it wasn't requested. Don't generate the
// machine code, instead copy the .o file from the .bc
let write_bc = config.emit_bc || (config.obj_is_bitcode && !asm2wasm);
let rm_bc = !config.emit_bc && config.obj_is_bitcode && !asm2wasm;
- let write_obj = config.emit_obj && !config.obj_is_bitcode && !asm2wasm;
+ let write_obj = config.emit_obj && !config.obj_is_bitcode && !asm2wasm && !asm_to_obj;
let copy_bc_to_obj = config.emit_obj && config.obj_is_bitcode && !asm2wasm;
let bc_out = cgcx.output_filenames.temp_path(OutputType::Bitcode, module_name);
timeline.record("ir");
}
- if config.emit_asm || (asm2wasm && config.emit_obj) {
+ if config.emit_asm || (asm2wasm && config.emit_obj) || asm_to_obj {
let path = cgcx.output_filenames.temp_path(OutputType::Assembly, module_name);
// We can't use the same module for asm and binary output, because that triggers
// various errors like invalid IR or broken binaries, so we might have to clone the
// module to produce the asm output
- let llmod = if config.emit_obj {
+ let llmod = if config.emit_obj && !asm2wasm {
llvm::LLVMCloneModule(llmod)
} else {
llmod
write_output_file(diag_handler, tm, cpm, llmod, &path,
llvm::FileType::AssemblyFile)
})?;
- if config.emit_obj {
+ if config.emit_obj && !asm2wasm {
llvm::LLVMDisposeModule(llmod);
}
timeline.record("asm");
llvm::FileType::ObjectFile)
})?;
timeline.record("obj");
+ } else if asm_to_obj {
+ let assembly = cgcx.output_filenames.temp_path(OutputType::Assembly, module_name);
+ run_assembler(cgcx, diag_handler, &assembly, &obj_out);
+ timeline.record("asm_to_obj");
+
+ if !config.emit_asm && !cgcx.save_temps {
+ drop(fs::remove_file(&assembly));
+ }
}
Ok(())
total_cgus: usize)
-> OngoingCrateTranslation {
let sess = tcx.sess;
- let crate_output = tcx.output_filenames(LOCAL_CRATE);
let crate_name = tcx.crate_name(LOCAL_CRATE);
let no_builtins = attr::contains_name(&tcx.hir.krate().attrs, "no_builtins");
let subsystem = attr::first_attr_value_str_by_name(&tcx.hir.krate().attrs,
subsystem.to_string()
});
- let no_integrated_as = tcx.sess.opts.cg.no_integrated_as ||
- (tcx.sess.target.target.options.no_integrated_as &&
- (crate_output.outputs.contains_key(&OutputType::Object) ||
- crate_output.outputs.contains_key(&OutputType::Exe)));
let linker_info = LinkerInfo::new(tcx);
let crate_info = CrateInfo::new(tcx);
- let output_types_override = if no_integrated_as {
- OutputTypes::new(&[(OutputType::Assembly, None)])
- } else {
- sess.opts.output_types.clone()
- };
-
// Figure out what we actually need to build.
let mut modules_config = ModuleConfig::new(sess.opts.cg.passes.clone());
let mut metadata_config = ModuleConfig::new(vec![]);
allocator_config.emit_bc_compressed = true;
}
- for output_type in output_types_override.keys() {
+ modules_config.no_integrated_as = tcx.sess.opts.cg.no_integrated_as ||
+ tcx.sess.target.target.options.no_integrated_as;
+
+ for output_type in sess.opts.output_types.keys() {
match *output_type {
OutputType::Bitcode => { modules_config.emit_bc = true; }
OutputType::LlvmAssembly => { modules_config.emit_ir = true; }
metadata,
windows_subsystem,
linker_info,
- no_integrated_as,
crate_info,
time_graph,
unsafe {
optimize(cgcx, &diag_handler, &mtrans, config, timeline)?;
- let lto = cgcx.lto;
+ // After we've done the initial round of optimizations we need to
+ // decide whether to synchronously codegen this module or ship it
+ // back to the coordinator thread for further LTO processing (which
+ // has to wait for all the initial modules to be optimized).
+ //
+ // Here we dispatch based on the `cgcx.lto` and kind of module we're
+ // translating...
+ let needs_lto = match cgcx.lto {
+ Lto::No => false,
+
+ // Here we've got a full crate graph LTO requested. We ignore
+ // this, however, if the crate type is only an rlib as there's
+ // no full crate graph to process, that'll happen later.
+ //
+ // This use case currently comes up primarily for targets that
+ // require LTO so the request for LTO is always unconditionally
+ // passed down to the backend, but we don't actually want to do
+ // anything about it yet until we've got a final product.
+ Lto::Yes | Lto::Fat | Lto::Thin => {
+ cgcx.crate_types.len() != 1 ||
+ cgcx.crate_types[0] != config::CrateTypeRlib
+ }
- let auto_thin_lto =
- cgcx.thinlto &&
- cgcx.total_cgus > 1 &&
- mtrans.kind != ModuleKind::Allocator;
+ // When we're automatically doing ThinLTO for multi-codegen-unit
+ // builds we don't actually want to LTO the allocator modules if
+ // it shows up. This is due to various linker shenanigans that
+ // we'll encounter later.
+ //
+ // Additionally here's where we also factor in the current LLVM
+ // version. If it doesn't support ThinLTO we skip this.
+ Lto::ThinLocal => {
+ mtrans.kind != ModuleKind::Allocator &&
+ llvm::LLVMRustThinLTOAvailable()
+ }
+ };
- // If we're a metadata module we never participate in LTO.
- //
- // If LTO was explicitly requested on the command line, we always
- // LTO everything else.
- //
- // If LTO *wasn't* explicitly requested and we're not a metdata
- // module, then we may automatically do ThinLTO if we've got
- // multiple codegen units. Note, however, that the allocator module
- // doesn't participate here automatically because of linker
- // shenanigans later on.
- if mtrans.kind == ModuleKind::Metadata || (!lto && !auto_thin_lto) {
+ // Metadata modules never participate in LTO regardless of the lto
+ // settings.
+ let needs_lto = needs_lto && mtrans.kind != ModuleKind::Metadata;
+
+ if needs_lto {
+ Ok(WorkItemResult::NeedsLTO(mtrans))
+ } else {
let module = codegen(cgcx, &diag_handler, mtrans, config, timeline)?;
Ok(WorkItemResult::Compiled(module))
- } else {
- Ok(WorkItemResult::NeedsLTO(mtrans))
}
}
}
each_linked_rlib_for_lto.push((cnum, path.to_path_buf()));
}));
- let crate_types = sess.crate_types.borrow();
- let only_rlib = crate_types.len() == 1 &&
- crate_types[0] == config::CrateTypeRlib;
-
let wasm_import_memory =
attr::contains_name(&tcx.hir.krate().attrs, "wasm_import_memory");
+ let assembler_cmd = if modules_config.no_integrated_as {
+ // HACK: currently we use linker (gcc) as our assembler
+ let (name, mut cmd, _) = get_linker(sess);
+ cmd.args(&sess.target.target.options.asm_args);
+ Some(Arc::new(AssemblerCommand {
+ name,
+ cmd,
+ }))
+ } else {
+ None
+ };
+
let cgcx = CodegenContext {
crate_types: sess.crate_types.borrow().clone(),
each_linked_rlib_for_lto,
- // If we're only building an rlibc then allow the LTO flag to be passed
- // but don't actually do anything, the full LTO will happen later
- lto: sess.lto() && !only_rlib,
-
- // Enable ThinLTO if requested, but only if the target we're compiling
- // for doesn't require full LTO. Some targets require one LLVM module
- // (they effectively don't have a linker) so it's up to us to use LTO to
- // link everything together.
- thinlto: sess.thinlto() &&
- !sess.target.target.options.requires_lto &&
- unsafe { llvm::LLVMRustThinLTOAvailable() },
-
+ lto: sess.lto(),
no_landing_pads: sess.no_landing_pads(),
fewer_names: sess.fewer_names(),
save_temps: sess.opts.cg.save_temps,
binaryen_linker: tcx.sess.linker_flavor() == LinkerFlavor::Binaryen,
debuginfo: tcx.sess.opts.debuginfo,
wasm_import_memory: wasm_import_memory,
+ assembler_cmd,
};
// This is the "main loop" of parallel work happening for parallel codegen.
});
}
-pub fn run_assembler(sess: &Session, outputs: &OutputFilenames) {
- let (pname, mut cmd, _) = get_linker(sess);
-
- for arg in &sess.target.target.options.asm_args {
- cmd.arg(arg);
- }
+pub fn run_assembler(cgcx: &CodegenContext, handler: &Handler, assembly: &Path, object: &Path) {
+ let assembler = cgcx.assembler_cmd
+ .as_ref()
+ .expect("cgcx.assembler_cmd is missing?");
- cmd.arg("-c").arg("-o").arg(&outputs.path(OutputType::Object))
- .arg(&outputs.temp_path(OutputType::Assembly, None));
+ let pname = &assembler.name;
+ let mut cmd = assembler.cmd.clone();
+ cmd.arg("-c").arg("-o").arg(object).arg(assembly);
debug!("{:?}", cmd);
match cmd.output() {
let mut note = prog.stderr.clone();
note.extend_from_slice(&prog.stdout);
- sess.struct_err(&format!("linking with `{}` failed: {}",
- pname.display(),
- prog.status))
+ handler.struct_err(&format!("linking with `{}` failed: {}",
+ pname.display(),
+ prog.status))
.note(&format!("{:?}", &cmd))
.note(str::from_utf8(¬e[..]).unwrap())
.emit();
- sess.abort_if_errors();
+ handler.abort_if_errors();
}
},
Err(e) => {
- sess.err(&format!("could not exec the linker `{}`: {}", pname.display(), e));
- sess.abort_if_errors();
+ handler.err(&format!("could not exec the linker `{}`: {}", pname.display(), e));
+ handler.abort_if_errors();
}
}
}
metadata: EncodedMetadata,
windows_subsystem: Option<String>,
linker_info: LinkerInfo,
- no_integrated_as: bool,
crate_info: CrateInfo,
time_graph: Option<TimeGraph>,
coordinator_send: Sender<Box<Any + Send>>,
metadata_module: compiled_modules.metadata_module,
};
- if self.no_integrated_as {
- run_assembler(sess, &self.output_filenames);
-
- // HACK the linker expects the object file to be named foo.0.o but
- // `run_assembler` produces an object named just foo.o. Rename it if we
- // are going to build an executable
- if sess.opts.output_types.contains_key(&OutputType::Exe) {
- let f = self.output_filenames.path(OutputType::Object);
- rename_or_copy_remove(&f,
- f.with_file_name(format!("{}.0.o",
- f.file_stem().unwrap().to_string_lossy()))).unwrap();
- }
-
- // Remove assembly source, unless --save-temps was specified
- if !sess.opts.cg.save_temps {
- fs::remove_file(&self.output_filenames
- .temp_path(OutputType::Assembly, None)).unwrap();
- }
- }
-
trans
}
use std::str;
use std::sync::Arc;
use std::time::{Instant, Duration};
-use std::i32;
+use std::{i32, usize};
use std::iter;
use std::sync::mpsc;
use syntax_pos::Span;
ongoing_translation.submit_pre_translated_module_to_llvm(tcx, metadata_module);
// We sort the codegen units by size. This way we can schedule work for LLVM
- // a bit more efficiently. Note that "size" is defined rather crudely at the
- // moment as it is just the number of TransItems in the CGU, not taking into
- // account the size of each TransItem.
+ // a bit more efficiently.
let codegen_units = {
let mut codegen_units = codegen_units;
- codegen_units.sort_by_key(|cgu| -(cgu.items().len() as isize));
+ codegen_units.sort_by_key(|cgu| usize::MAX - cgu.size_estimate());
codegen_units
};
use rustc::ty::layout::{self, TyLayout, Size};
-#[derive(Clone, Copy, PartialEq, Debug)]
+/// Classification of "eightbyte" components.
+// NB: the order of the variants is from general to specific,
+// such that `unify(a, b)` is the "smaller" of `a` and `b`.
+#[derive(Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Debug)]
enum Class {
- None,
Int,
Sse,
SseUp
const MAX_EIGHTBYTES: usize = LARGEST_VECTOR_SIZE / 64;
fn classify_arg<'a, 'tcx>(cx: &CodegenCx<'a, 'tcx>, arg: &ArgType<'tcx>)
- -> Result<[Class; MAX_EIGHTBYTES], Memory> {
- fn unify(cls: &mut [Class],
- off: Size,
- c: Class) {
- let i = (off.bytes() / 8) as usize;
- let to_write = match (cls[i], c) {
- (Class::None, _) => c,
- (_, Class::None) => return,
-
- (Class::Int, _) |
- (_, Class::Int) => Class::Int,
-
- (Class::Sse, _) |
- (_, Class::Sse) => Class::Sse,
-
- (Class::SseUp, Class::SseUp) => Class::SseUp
- };
- cls[i] = to_write;
- }
-
+ -> Result<[Option<Class>; MAX_EIGHTBYTES], Memory> {
fn classify<'a, 'tcx>(cx: &CodegenCx<'a, 'tcx>,
layout: TyLayout<'tcx>,
- cls: &mut [Class],
+ cls: &mut [Option<Class>],
off: Size)
-> Result<(), Memory> {
if !off.is_abi_aligned(layout.align) {
return Ok(());
}
- match layout.abi {
- layout::Abi::Uninhabited => {}
+ let mut c = match layout.abi {
+ layout::Abi::Uninhabited => return Ok(()),
layout::Abi::Scalar(ref scalar) => {
- let reg = match scalar.value {
+ match scalar.value {
layout::Int(..) |
layout::Pointer => Class::Int,
layout::F32 |
layout::F64 => Class::Sse
- };
- unify(cls, off, reg);
- }
-
- layout::Abi::Vector { ref element, count } => {
- unify(cls, off, Class::Sse);
-
- // everything after the first one is the upper
- // half of a register.
- let stride = element.value.size(cx);
- for i in 1..count {
- let field_off = off + stride * i;
- unify(cls, field_off, Class::SseUp);
}
}
+ layout::Abi::Vector { .. } => Class::Sse,
+
layout::Abi::ScalarPair(..) |
layout::Abi::Aggregate { .. } => {
match layout.variants {
let field_off = off + layout.fields.offset(i);
classify(cx, layout.field(cx, i), cls, field_off)?;
}
+ return Ok(());
}
layout::Variants::Tagged { .. } |
layout::Variants::NicheFilling { .. } => return Err(Memory),
}
}
+ };
+
+ // Fill in `cls` for scalars (Int/Sse) and vectors (Sse).
+ let first = (off.bytes() / 8) as usize;
+ let last = ((off.bytes() + layout.size.bytes() - 1) / 8) as usize;
+ for cls in &mut cls[first..=last] {
+ *cls = Some(cls.map_or(c, |old| old.min(c)));
+
+ // Everything after the first Sse "eightbyte"
+ // component is the upper half of a register.
+ if c == Class::Sse {
+ c = Class::SseUp;
+ }
}
Ok(())
return Err(Memory);
}
- let mut cls = [Class::None; MAX_EIGHTBYTES];
+ let mut cls = [None; MAX_EIGHTBYTES];
classify(cx, arg.layout, &mut cls, Size::from_bytes(0))?;
if n > 2 {
- if cls[0] != Class::Sse {
+ if cls[0] != Some(Class::Sse) {
return Err(Memory);
}
- if cls[1..n].iter().any(|&c| c != Class::SseUp) {
+ if cls[1..n].iter().any(|&c| c != Some(Class::SseUp)) {
return Err(Memory);
}
} else {
let mut i = 0;
while i < n {
- if cls[i] == Class::SseUp {
- cls[i] = Class::Sse;
- } else if cls[i] == Class::Sse {
+ if cls[i] == Some(Class::SseUp) {
+ cls[i] = Some(Class::Sse);
+ } else if cls[i] == Some(Class::Sse) {
i += 1;
- while i != n && cls[i] == Class::SseUp { i += 1; }
+ while i != n && cls[i] == Some(Class::SseUp) { i += 1; }
} else {
i += 1;
}
Ok(cls)
}
-fn reg_component(cls: &[Class], i: &mut usize, size: Size) -> Option<Reg> {
+fn reg_component(cls: &[Option<Class>], i: &mut usize, size: Size) -> Option<Reg> {
if *i >= cls.len() {
return None;
}
match cls[*i] {
- Class::None => None,
- Class::Int => {
+ None => None,
+ Some(Class::Int) => {
*i += 1;
Some(match size.bytes() {
1 => Reg::i8(),
_ => Reg::i64()
})
}
- Class::Sse => {
- let vec_len = 1 + cls[*i+1..].iter().take_while(|&&c| c == Class::SseUp).count();
+ Some(Class::Sse) => {
+ let vec_len = 1 + cls[*i+1..].iter()
+ .take_while(|&&c| c == Some(Class::SseUp))
+ .count();
*i += vec_len;
Some(if vec_len == 1 {
match size.bytes() {
}
})
}
- c => bug!("reg_component: unhandled class {:?}", c)
+ Some(c) => bug!("reg_component: unhandled class {:?}", c)
}
}
-fn cast_target(cls: &[Class], size: Size) -> CastTarget {
+fn cast_target(cls: &[Option<Class>], size: Size) -> CastTarget {
let mut i = 0;
let lo = reg_component(cls, &mut i, size).unwrap();
let offset = Size::from_bytes(8) * (i as u64);
- let target = if size <= offset {
- CastTarget::from(lo)
- } else {
- let hi = reg_component(cls, &mut i, size - offset).unwrap();
- CastTarget::Pair(lo, hi)
- };
+ let mut target = CastTarget::from(lo);
+ if size > offset {
+ if let Some(hi) = reg_component(cls, &mut i, size - offset) {
+ target = CastTarget::Pair(lo, hi);
+ }
+ }
assert_eq!(reg_component(cls, &mut i, Size::from_bytes(0)), None);
target
}
let mut sse_regs = 8; // XMM0-7
let mut x86_64_ty = |arg: &mut ArgType<'tcx>, is_arg: bool| {
- let cls = classify_arg(cx, arg);
+ let mut cls_or_mem = classify_arg(cx, arg);
let mut needed_int = 0;
let mut needed_sse = 0;
- let in_mem = match cls {
- Err(Memory) => true,
- Ok(ref cls) if is_arg => {
- for &c in cls {
+ if is_arg {
+ if let Ok(cls) = cls_or_mem {
+ for &c in &cls {
match c {
- Class::Int => needed_int += 1,
- Class::Sse => needed_sse += 1,
+ Some(Class::Int) => needed_int += 1,
+ Some(Class::Sse) => needed_sse += 1,
_ => {}
}
}
- arg.layout.is_aggregate() &&
- (int_regs < needed_int || sse_regs < needed_sse)
+ if arg.layout.is_aggregate() {
+ if int_regs < needed_int || sse_regs < needed_sse {
+ cls_or_mem = Err(Memory);
+ }
+ }
}
- Ok(_) => false
- };
+ }
- if in_mem {
- if is_arg {
- arg.make_indirect_byval();
- } else {
- // `sret` parameter thus one less integer register available
- arg.make_indirect();
- int_regs -= 1;
+ match cls_or_mem {
+ Err(Memory) => {
+ if is_arg {
+ arg.make_indirect_byval();
+ } else {
+ // `sret` parameter thus one less integer register available
+ arg.make_indirect();
+ int_regs -= 1;
+ }
}
- } else {
- // split into sized chunks passed individually
- int_regs -= needed_int;
- sse_regs -= needed_sse;
-
- if arg.layout.is_aggregate() {
- let size = arg.layout.size;
- arg.cast_to(cast_target(cls.as_ref().unwrap(), size))
- } else {
- arg.extend_integer_width_to(32);
+ Ok(ref cls) => {
+ // split into sized chunks passed individually
+ int_regs -= needed_int;
+ sse_regs -= needed_sse;
+
+ if arg.layout.is_aggregate() {
+ let size = arg.layout.size;
+ arg.cast_to(cast_target(cls, size))
+ } else {
+ arg.extend_integer_width_to(32);
+ }
}
}
};
}
None => {}
};
+ if sig.output().is_never() {
+ flags = flags | DIFlags::FlagNoReturn;
+ }
let fn_metadata = unsafe {
llvm::LLVMRustDIBuilderCreateFunction(
let item_id = tcx.hir.get_parent_node(node_id);
let item_def_id = tcx.hir.local_def_id(item_id);
let generics = tcx.generics_of(item_def_id);
- let index = generics.type_param_to_index[&tcx.hir.local_def_id(node_id).index];
+ let index = generics.type_param_to_index[&tcx.hir.local_def_id(node_id)];
tcx.mk_param(index, tcx.hir.name(node_id))
}
Def::SelfTy(_, Some(def_id)) => {
let output = bare_fn_ty.output();
let late_bound_in_ret = tcx.collect_referenced_late_bound_regions(&output);
for br in late_bound_in_ret.difference(&late_bound_in_args) {
- let br_name = match *br {
- ty::BrNamed(_, name) => name,
- _ => {
- span_bug!(
- decl.output.span(),
- "anonymous bound region {:?} in return but not args",
- br);
- }
+ let lifetime_name = match *br {
+ ty::BrNamed(_, name) => format!("lifetime `{}`,", name),
+ ty::BrAnon(_) | ty::BrFresh(_) | ty::BrEnv => format!("an anonymous lifetime"),
};
- struct_span_err!(tcx.sess,
- decl.output.span(),
- E0581,
- "return type references lifetime `{}`, \
- which does not appear in the fn input types",
- br_name)
- .emit();
+ let mut err = struct_span_err!(tcx.sess,
+ decl.output.span(),
+ E0581,
+ "return type references {} \
+ which is not constrained by the fn input types",
+ lifetime_name);
+ if let ty::BrAnon(_) = *br {
+ // The only way for an anonymous lifetime to wind up
+ // in the return type but **also** be unconstrained is
+ // if it only appears in "associated types" in the
+ // input. See #47511 for an example. In this case,
+ // though we can easily give a hint that ought to be
+ // relevant.
+ err.note("lifetimes appearing in an associated type \
+ are not considered constrained");
+ }
+ err.emit();
}
bare_fn_ty
let item_id = tcx.hir.ty_param_owner(node_id);
let item_def_id = tcx.hir.local_def_id(item_id);
let generics = tcx.generics_of(item_def_id);
- let index = generics.type_param_to_index[&def_id.index];
+ let index = generics.type_param_to_index[&def_id];
ty::GenericPredicates {
parent: None,
predicates: self.param_env.caller_bounds.iter().filter(|predicate| {
use rustc_const_math::ConstInt;
-use std::collections::BTreeMap;
-
use syntax::{abi, ast};
use syntax::codemap::Spanned;
use syntax::symbol::{Symbol, keywords};
let param_owner = tcx.hir.ty_param_owner(param_id);
let param_owner_def_id = tcx.hir.local_def_id(param_owner);
let generics = tcx.generics_of(param_owner_def_id);
- let index = generics.type_param_to_index[&def_id.index];
+ let index = generics.type_param_to_index[&def_id];
let ty = tcx.mk_param(index, tcx.hir.ty_param_name(param_id));
// Don't look for bounds where the type parameter isn't in scope.
});
}
- let mut type_param_to_index = BTreeMap::new();
- for param in &types {
- type_param_to_index.insert(param.def_id.index, param.index);
- }
+ let type_param_to_index = types.iter()
+ .map(|param| (param.def_id, param.index))
+ .collect();
tcx.alloc_generics(ty::Generics {
parent: parent_def_id,
//! We walk the set of items and, for each member, generate new constraints.
use hir::def_id::DefId;
-use rustc::dep_graph::{DepGraphSafe, DepKind, DepNodeColor};
-use rustc::ich::StableHashingContext;
use rustc::ty::subst::Substs;
use rustc::ty::{self, Ty, TyCtxt};
use syntax::ast;
use rustc::hir;
use rustc::hir::itemlikevisit::ItemLikeVisitor;
-use rustc_data_structures::stable_hasher::StableHashingContextProvider;
-
use super::terms::*;
use super::terms::VarianceTerm::*;
}
}
-impl<'a, 'tcx> StableHashingContextProvider for ConstraintContext<'a, 'tcx> {
- type ContextType = StableHashingContext<'tcx>;
-
- fn create_stable_hashing_context(&self) -> Self::ContextType {
- self.terms_cx.tcx.create_stable_hashing_context()
- }
-}
-
-impl<'a, 'tcx> DepGraphSafe for ConstraintContext<'a, 'tcx> {}
-
impl<'a, 'tcx> ConstraintContext<'a, 'tcx> {
fn visit_node_helper(&mut self, id: ast::NodeId) {
let tcx = self.terms_cx.tcx;
let def_id = tcx.hir.local_def_id(id);
-
- // Encapsulate constructing the constraints into a task we can
- // reference later. This can go away once the red-green
- // algorithm is in place.
- //
- // See README.md for a detailed discussion
- // on dep-graph management.
- let dep_node = def_id.to_dep_node(tcx, DepKind::ItemVarianceConstraints);
-
- if let Some(DepNodeColor::Green(_)) = tcx.dep_graph.node_color(&dep_node) {
- // If the corresponding node has already been marked as green, the
- // appropriate portion of the DepGraph has already been loaded from
- // the previous graph, so we don't do any dep-tracking. Since we
- // don't cache any values though, we still have to re-run the
- // computation.
- tcx.dep_graph.with_ignore(|| {
- self.build_constraints_for_item(def_id);
- });
- } else {
- tcx.dep_graph.with_task(dep_node,
- self,
- def_id,
- visit_item_task);
- }
-
- fn visit_item_task<'a, 'tcx>(ccx: &mut ConstraintContext<'a, 'tcx>,
- def_id: DefId)
- {
- ccx.build_constraints_for_item(def_id);
- }
+ self.build_constraints_for_item(def_id);
}
fn tcx(&self) -> TyCtxt<'a, 'tcx, 'tcx> {
//! parameters. See README.md for details.
use arena;
-use rustc::dep_graph::DepKind;
use rustc::hir;
use rustc::hir::def_id::{CrateNum, DefId, LOCAL_CRATE};
use rustc::ty::{self, CrateVariancesMap, TyCtxt};
// Everything else must be inferred.
let crate_map = tcx.crate_variances(LOCAL_CRATE);
- let dep_node = item_def_id.to_dep_node(tcx, DepKind::ItemVarianceConstraints);
- tcx.dep_graph.read(dep_node);
-
crate_map.variances.get(&item_def_id)
.unwrap_or(&crate_map.empty_variance)
.clone()
pub other_attrs: Vec<ast::Attribute>,
pub cfg: Option<Rc<Cfg>>,
pub span: Option<syntax_pos::Span>,
- pub links: Vec<(String, DefId)>,
+ /// map from Rust paths to resolved defs and potential URL fragments
+ pub links: Vec<(String, DefId, Option<String>)>,
}
impl Attributes {
/// Cache must be populated before call
pub fn links(&self) -> Vec<(String, String)> {
use html::format::href;
- self.links.iter().filter_map(|&(ref s, did)| {
- if let Some((href, ..)) = href(did) {
+ self.links.iter().filter_map(|&(ref s, did, ref fragment)| {
+ if let Some((mut href, ..)) = href(did) {
+ if let Some(ref fragment) = *fragment {
+ href.push_str("#");
+ href.push_str(fragment);
+ }
Some((s.clone(), href))
} else {
None
/// they exist in both namespaces (structs and modules)
fn value_ns_kind(def: Def, path_str: &str) -> Option<(&'static str, String)> {
match def {
- // structs and mods exist in both namespaces. skip them
- Def::StructCtor(..) | Def::Mod(..) => None,
- Def::Variant(..) | Def::VariantCtor(..)
- => Some(("variant", format!("{}()", path_str))),
+ // structs, variants, and mods exist in both namespaces. skip them
+ Def::StructCtor(..) | Def::Mod(..) | Def::Variant(..) | Def::VariantCtor(..) => None,
Def::Fn(..)
=> Some(("function", format!("{}()", path_str))),
Def::Method(..)
let sp = attrs.doc_strings.first()
.map_or(DUMMY_SP, |a| a.span());
cx.sess()
- .struct_span_err(sp,
- &format!("`{}` is both {} {} and {} {}",
- path_str, article1, kind1,
- article2, kind2))
+ .struct_span_warn(sp,
+ &format!("`{}` is both {} {} and {} {}",
+ path_str, article1, kind1,
+ article2, kind2))
.help(&format!("try `{}` if you want to select the {}, \
or `{}` if you want to \
select the {}",
.emit();
}
+/// Given an enum variant's def, return the def of its enum and the associated fragment
+fn handle_variant(cx: &DocContext, def: Def) -> Result<(Def, Option<String>), ()> {
+ use rustc::ty::DefIdTree;
+
+ let parent = if let Some(parent) = cx.tcx.parent(def.def_id()) {
+ parent
+ } else {
+ return Err(())
+ };
+ let parent_def = Def::Enum(parent);
+ let variant = cx.tcx.expect_variant_def(def);
+ Ok((parent_def, Some(format!("{}.v", variant.name))))
+}
+
/// Resolve a given string as a path, along with whether or not it is
-/// in the value namespace
-fn resolve(cx: &DocContext, path_str: &str, is_val: bool) -> Result<hir::Path, ()> {
+/// in the value namespace. Also returns an optional URL fragment in the case
+/// of variants and methods
+fn resolve(cx: &DocContext, path_str: &str, is_val: bool) -> Result<(Def, Option<String>), ()> {
// In case we're in a module, try to resolve the relative
// path
if let Some(id) = cx.mod_ids.borrow().last() {
- cx.resolver.borrow_mut()
- .with_scope(*id, |resolver| {
- resolver.resolve_str_path_error(DUMMY_SP,
- &path_str, is_val)
- })
+ let result = cx.resolver.borrow_mut()
+ .with_scope(*id,
+ |resolver| {
+ resolver.resolve_str_path_error(DUMMY_SP,
+ &path_str, is_val)
+ });
+
+ if let Ok(result) = result {
+ // In case this is a trait item, skip the
+ // early return and try looking for the trait
+ let value = match result.def {
+ Def::Method(_) | Def::AssociatedConst(_) => true,
+ Def::AssociatedTy(_) => false,
+ Def::Variant(_) => return handle_variant(cx, result.def),
+ // not a trait item, just return what we found
+ _ => return Ok((result.def, None))
+ };
+
+ if value != is_val {
+ return Err(())
+ }
+ } else {
+ // If resolution failed, it may still be a method
+ // because methods are not handled by the resolver
+ // If so, bail when we're not looking for a value
+ if !is_val {
+ return Err(())
+ }
+ }
+
+ // Try looking for methods and associated items
+ let mut split = path_str.rsplitn(2, "::");
+ let mut item_name = if let Some(first) = split.next() {
+ first
+ } else {
+ return Err(())
+ };
+
+ let mut path = if let Some(second) = split.next() {
+ second
+ } else {
+ return Err(())
+ };
+
+ let ty = cx.resolver.borrow_mut()
+ .with_scope(*id,
+ |resolver| {
+ resolver.resolve_str_path_error(DUMMY_SP,
+ &path, false)
+ })?;
+ match ty.def {
+ Def::Struct(did) | Def::Union(did) | Def::Enum(did) | Def::TyAlias(did) => {
+ let item = cx.tcx.inherent_impls(did).iter()
+ .flat_map(|imp| cx.tcx.associated_items(*imp))
+ .find(|item| item.name == item_name);
+ if let Some(item) = item {
+ if item.kind == ty::AssociatedKind::Method && is_val {
+ Ok((ty.def, Some(format!("method.{}", item_name))))
+ } else {
+ Err(())
+ }
+ } else {
+ Err(())
+ }
+ }
+ Def::Trait(did) => {
+ let item = cx.tcx.associated_item_def_ids(did).iter()
+ .map(|item| cx.tcx.associated_item(*item))
+ .find(|item| item.name == item_name);
+ if let Some(item) = item {
+ let kind = match item.kind {
+ ty::AssociatedKind::Const if is_val => "associatedconstant",
+ ty::AssociatedKind::Type if !is_val => "associatedtype",
+ ty::AssociatedKind::Method if is_val => "tymethod",
+ _ => return Err(())
+ };
+
+ Ok((ty.def, Some(format!("{}.{}", kind, item_name))))
+ } else {
+ Err(())
+ }
+ }
+ _ => Err(())
+ }
+
} else {
- // FIXME(Manishearth) this branch doesn't seem to ever be hit, really
- cx.resolver.borrow_mut()
- .resolve_str_path_error(DUMMY_SP, &path_str, is_val)
+ Err(())
}
}
if UnstableFeatures::from_environment().is_nightly_build() {
let dox = attrs.collapsed_doc_value().unwrap_or_else(String::new);
for link in markdown_links(&dox, cx.render_type) {
- let def = {
+ let (def, fragment) = {
let mut kind = PathKind::Unknown;
let path_str = if let Some(prefix) =
["struct@", "enum@", "type@",
link.trim_left_matches(prefix)
} else if let Some(prefix) =
["const@", "static@",
- "value@", "function@", "mod@", "fn@", "module@"]
+ "value@", "function@", "mod@",
+ "fn@", "module@", "method@"]
.iter().find(|p| link.starts_with(**p)) {
kind = PathKind::Value;
link.trim_left_matches(prefix)
match kind {
PathKind::Value => {
- if let Ok(path) = resolve(cx, path_str, true) {
- path.def
+ if let Ok(def) = resolve(cx, path_str, true) {
+ def
} else {
// this could just be a normal link or a broken link
// we could potentially check if something is
}
}
PathKind::Type => {
- if let Ok(path) = resolve(cx, path_str, false) {
- path.def
+ if let Ok(def) = resolve(cx, path_str, false) {
+ def
} else {
// this could just be a normal link
continue;
PathKind::Unknown => {
// try everything!
if let Some(macro_def) = macro_resolve(cx, path_str) {
- if let Ok(type_path) = resolve(cx, path_str, false) {
+ if let Ok(type_def) = resolve(cx, path_str, false) {
let (type_kind, article, type_disambig)
- = type_ns_kind(type_path.def, path_str);
+ = type_ns_kind(type_def.0, path_str);
ambiguity_error(cx, &attrs, path_str,
article, type_kind, &type_disambig,
"a", "macro", &format!("macro@{}", path_str));
continue;
- } else if let Ok(value_path) = resolve(cx, path_str, true) {
+ } else if let Ok(value_def) = resolve(cx, path_str, true) {
let (value_kind, value_disambig)
- = value_ns_kind(value_path.def, path_str)
+ = value_ns_kind(value_def.0, path_str)
.expect("struct and mod cases should have been \
caught in previous branch");
ambiguity_error(cx, &attrs, path_str,
"a", value_kind, &value_disambig,
"a", "macro", &format!("macro@{}", path_str));
}
- macro_def
- } else if let Ok(type_path) = resolve(cx, path_str, false) {
+ (macro_def, None)
+ } else if let Ok(type_def) = resolve(cx, path_str, false) {
// It is imperative we search for not-a-value first
// Otherwise we will find struct ctors for when we are looking
// for structs, and the link won't work.
// if there is something in both namespaces
- if let Ok(value_path) = resolve(cx, path_str, true) {
- let kind = value_ns_kind(value_path.def, path_str);
+ if let Ok(value_def) = resolve(cx, path_str, true) {
+ let kind = value_ns_kind(value_def.0, path_str);
if let Some((value_kind, value_disambig)) = kind {
let (type_kind, article, type_disambig)
- = type_ns_kind(type_path.def, path_str);
+ = type_ns_kind(type_def.0, path_str);
ambiguity_error(cx, &attrs, path_str,
article, type_kind, &type_disambig,
"a", value_kind, &value_disambig);
continue;
}
}
- type_path.def
- } else if let Ok(value_path) = resolve(cx, path_str, true) {
- value_path.def
+ type_def
+ } else if let Ok(value_def) = resolve(cx, path_str, true) {
+ value_def
} else {
// this could just be a normal link
continue;
}
PathKind::Macro => {
if let Some(def) = macro_resolve(cx, path_str) {
- def
+ (def, None)
} else {
continue
}
let id = register_def(cx, def);
- attrs.links.push((link, id));
+ attrs.links.push((link, id, fragment));
}
cx.sess().abort_if_errors();
use std::rc::Rc;
use std::u32;
+#[derive(Clone, PartialEq, Eq, RustcEncodable, RustcDecodable, Hash, Copy)]
+pub struct Label {
+ pub ident: Ident,
+ pub span: Span,
+}
+
+impl fmt::Debug for Label {
+ fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+ write!(f, "label({:?})", self.ident)
+ }
+}
+
#[derive(Clone, PartialEq, Eq, RustcEncodable, RustcDecodable, Hash, Copy)]
pub struct Lifetime {
pub id: NodeId,
/// A while loop, with an optional label
///
/// `'label: while expr { block }`
- While(P<Expr>, P<Block>, Option<SpannedIdent>),
+ While(P<Expr>, P<Block>, Option<Label>),
/// A while-let loop, with an optional label
///
/// `'label: while let pat = expr { block }`
///
/// This is desugared to a combination of `loop` and `match` expressions.
- WhileLet(P<Pat>, P<Expr>, P<Block>, Option<SpannedIdent>),
+ WhileLet(P<Pat>, P<Expr>, P<Block>, Option<Label>),
/// A for loop, with an optional label
///
/// `'label: for pat in expr { block }`
///
/// This is desugared to a combination of `loop` and `match` expressions.
- ForLoop(P<Pat>, P<Expr>, P<Block>, Option<SpannedIdent>),
+ ForLoop(P<Pat>, P<Expr>, P<Block>, Option<Label>),
/// Conditionless loop (can be exited with break, continue, or return)
///
/// `'label: loop { block }`
- Loop(P<Block>, Option<SpannedIdent>),
+ Loop(P<Block>, Option<Label>),
/// A `match` block.
Match(P<Expr>, Vec<Arm>),
/// A closure (for example, `move |a, b, c| a + b + c`)
/// A referencing operation (`&a` or `&mut a`)
AddrOf(Mutability, P<Expr>),
/// A `break`, with an optional label to break, and an optional expression
- Break(Option<
SpannedIdent>, Option<P<Expr>>),
+ Break(Option<
Label>, Option<P<Expr>>),
/// A `continue`, with an optional label
- Continue(Option<SpannedIdent>),
+ Continue(Option<Label>),
/// A `return`, with an optional value to be returned
Ret(Option<P<Expr>>),
noop_fold_macro_def(def, self)
}
+ fn fold_label(&mut self, label: Label) -> Label {
+ noop_fold_label(label, self)
+ }
+
fn fold_lifetime(&mut self, l: Lifetime) -> Lifetime {
noop_fold_lifetime(l, self)
}
params.move_map(|p| fld.fold_generic_param(p))
}
+pub fn noop_fold_label<T: Folder>(label: Label, fld: &mut T) -> Label {
+ Label {
+ ident: fld.fold_ident(label.ident),
+ span: fld.new_span(label.span),
+ }
+}
+
pub fn noop_fold_lifetime<T: Folder>(l: Lifetime, fld: &mut T) -> Lifetime {
Lifetime {
id: fld.new_id(l.id),
folder.fold_block(tr),
fl.map(|x| folder.fold_expr(x)))
}
- ExprKind::While(cond, body, opt_ident) => {
+ ExprKind::While(cond, body, opt_label) => {
ExprKind::While(folder.fold_expr(cond),
folder.fold_block(body),
- opt_ident.map(|label| respan(folder.new_span(label.span),
- folder.fold_ident(label.node))))
+ opt_label.map(|label| folder.fold_label(label)))
}
- ExprKind::WhileLet(pat, expr, body, opt_ident) => {
+ ExprKind::WhileLet(pat, expr, body, opt_label) => {
ExprKind::WhileLet(folder.fold_pat(pat),
folder.fold_expr(expr),
folder.fold_block(body),
- opt_ident.map(|label| respan(folder.new_span(label.span),
- folder.fold_ident(label.node))))
+ opt_label.map(|label| folder.fold_label(label)))
}
- ExprKind::ForLoop(pat, iter, body, opt_ident) => {
+ ExprKind::ForLoop(pat, iter, body, opt_label) => {
ExprKind::ForLoop(folder.fold_pat(pat),
folder.fold_expr(iter),
folder.fold_block(body),
- opt_ident.map(|label| respan(folder.new_span(label.span),
- folder.fold_ident(label.node))))
+ opt_label.map(|label| folder.fold_label(label)))
}
- ExprKind::Loop(body, opt_ident) => {
+ ExprKind::Loop(body, opt_label) => {
ExprKind::Loop(folder.fold_block(body),
- opt_ident.map(|label| respan(folder.new_span(label.span),
- folder.fold_ident(label.node))))
+ opt_label.map(|label| folder.fold_label(label)))
}
ExprKind::Match(expr, arms) => {
ExprKind::Match(folder.fold_expr(expr),
});
ExprKind::Path(qself, folder.fold_path(path))
}
- ExprKind::Break(opt_ident, opt_expr) => {
- ExprKind::Break(opt_ident.map(|label| respan(folder.new_span(label.span),
- folder.fold_ident(label.node))),
+ ExprKind::Break(opt_label, opt_expr) => {
+ ExprKind::Break(opt_label.map(|label| folder.fold_label(label)),
opt_expr.map(|e| folder.fold_expr(e)))
}
- ExprKind::Continue(opt_ident) => ExprKind::Continue(opt_ident.map(|label|
- respan(folder.new_span(label.span),
- folder.fold_ident(label.node)))
- ),
+ ExprKind::Continue(opt_label) => {
+ ExprKind::Continue(opt_label.map(|label| folder.fold_label(label)))
+ }
ExprKind::Ret(e) => ExprKind::Ret(e.map(|x| folder.fold_expr(x))),
ExprKind::InlineAsm(asm) => ExprKind::InlineAsm(asm.map(|asm| {
InlineAsm {
use ast::{ForeignItem, ForeignItemKind, FunctionRetTy};
use ast::GenericParam;
use ast::{Ident, ImplItem, IsAuto, Item, ItemKind};
-use ast::{Lifetime, LifetimeDef, Lit, LitKind, UintTy};
+use ast::{Label, Lifetime, LifetimeDef, Lit, LitKind, UintTy};
use ast::Local;
use ast::MacStmtStyle;
use ast::Mac_;
self.check_keyword(keywords::Extern)
}
- fn get_label(&mut self) -> ast::Ident {
- match self.token {
+ fn eat_label(&mut self) -> Option<Label> {
+ let ident = match self.token {
token::Lifetime(ref ident) => *ident,
token::Interpolated(ref nt) => match nt.0 {
token::NtLifetime(lifetime) => lifetime.ident,
- _ => self.bug("not a lifetime"),
+ _ => return None,
},
- _ => self.bug("not a lifetime"),
- }
+ _ => return None,
+ };
+ self.bump();
+ Some(Label { ident, span: self.prev_span })
}
/// parse a TyKind::BareFn type:
let lo = self.prev_span;
return self.parse_while_expr(None, lo, attrs);
}
- if self.token.is_lifetime() {
- let label = Spanned { node: self.get_label(),
- span: self.span };
- let lo = self.span;
- self.bump();
+ if let Some(label) = self.eat_label() {
+ let lo = label.span;
self.expect(&token::Colon)?;
if self.eat_keyword(keywords::While) {
return self.parse_while_expr(Some(label), lo, attrs)
return self.parse_loop_expr(None, lo, attrs);
}
if self.eat_keyword(keywords::Continue) {
- let ex = if self.token.is_lifetime() {
- let ex = ExprKind::Continue(Some(Spanned{
- node: self.get_label(),
- span: self.span
- }));
- self.bump();
- ex
- } else {
- ExprKind::Continue(None)
- };
+ let label = self.eat_label();
+ let ex = ExprKind::Continue(label);
let hi = self.prev_span;
return Ok(self.mk_expr(lo.to(hi), ex, attrs));
}
ex = ExprKind::Ret(None);
}
} else if self.eat_keyword(keywords::Break) {
- let lt = if self.token.is_lifetime() {
- let spanned_lt = Spanned {
- node: self.get_label(),
- span: self.span
- };
- self.bump();
- Some(spanned_lt)
- } else {
- None
- };
+ let label = self.eat_label();
let e = if self.token.can_begin_expr()
&& !(self.token == token::OpenDelim(token::Brace)
&& self.restrictions.contains(
} else {
None
};
- ex = ExprKind::Break(lt, e);
+ ex = ExprKind::Break(label, e);
hi = self.prev_span;
} else if self.eat_keyword(keywords::Yield) {
if self.token.can_begin_expr() {
}
/// Parse a 'for' .. 'in' expression ('for' token already eaten)
- pub fn parse_for_expr(&mut self, opt_ident: Option<ast::SpannedIdent>,
+ pub fn parse_for_expr(&mut self, opt_label: Option<Label>,
span_lo: Span,
mut attrs: ThinVec<Attribute>) -> PResult<'a, P<Expr>> {
// Parse: `for <src_pat> in <src_expr> <src_loop_block>`
attrs.extend(iattrs);
let hi = self.prev_span;
- Ok(self.mk_expr(span_lo.to(hi), ExprKind::ForLoop(pat, expr, loop_block, opt_ident), attrs))
+ Ok(self.mk_expr(span_lo.to(hi), ExprKind::ForLoop(pat, expr, loop_block, opt_label), attrs))
}
/// Parse a 'while' or 'while let' expression ('while' token already eaten)
- pub fn parse_while_expr(&mut self, opt_ident: Option<ast::SpannedIdent>,
+ pub fn parse_while_expr(&mut self, opt_label: Option<Label>,
span_lo: Span,
mut attrs: ThinVec<Attribute>) -> PResult<'a, P<Expr>> {
if self.token.is_keyword(keywords::Let) {
- return self.parse_while_let_expr(opt_ident, span_lo, attrs);
+ return self.parse_while_let_expr(opt_label, span_lo, attrs);
}
let cond = self.parse_expr_res(Restrictions::NO_STRUCT_LITERAL, None)?;
let (iattrs, body) = self.parse_inner_attrs_and_block()?;
attrs.extend(iattrs);
let span = span_lo.to(body.span);
- return Ok(self.mk_expr(span, ExprKind::While(cond, body, opt_ident), attrs));
+ return Ok(self.mk_expr(span, ExprKind::While(cond, body, opt_label), attrs));
}
/// Parse a 'while let' expression ('while' token already eaten)
- pub fn parse_while_let_expr(&mut self, opt_ident: Option<ast::SpannedIdent>,
+ pub fn parse_while_let_expr(&mut self, opt_label: Option<Label>,
span_lo: Span,
mut attrs: ThinVec<Attribute>) -> PResult<'a, P<Expr>> {
self.expect_keyword(keywords::Let)?;
let (iattrs, body) = self.parse_inner_attrs_and_block()?;
attrs.extend(iattrs);
let span = span_lo.to(body.span);
- return Ok(self.mk_expr(span, ExprKind::WhileLet(pat, expr, body, opt_ident), attrs));
+ return Ok(self.mk_expr(span, ExprKind::WhileLet(pat, expr, body, opt_label), attrs));
}
// parse `loop {...}`, `loop` token already eaten
- pub fn parse_loop_expr(&mut self, opt_ident: Option<ast::SpannedIdent>,
+ pub fn parse_loop_expr(&mut self, opt_label: Option<Label>,
span_lo: Span,
mut attrs: ThinVec<Attribute>) -> PResult<'a, P<Expr>> {
let (iattrs, body) = self.parse_inner_attrs_and_block()?;
attrs.extend(iattrs);
let span = span_lo.to(body.span);
- Ok(self.mk_expr(span, ExprKind::Loop(body, opt_ident), attrs))
+ Ok(self.mk_expr(span, ExprKind::Loop(body, opt_label), attrs))
}
/// Parse a `do catch {...}` expression (`do catch` token already eaten)
ast::ExprKind::IfLet(ref pat, ref expr, ref blk, ref elseopt) => {
self.print_if_let(pat, expr, blk, elseopt.as_ref().map(|e| &**e))?;
}
- ast::ExprKind::While(ref test, ref blk, opt_ident) => {
- if let Some(ident) = opt_ident {
- self.print_ident(ident.node)?;
+ ast::ExprKind::While(ref test, ref blk, opt_label) => {
+ if let Some(label) = opt_label {
+ self.print_ident(label.ident)?;
self.word_space(":")?;
}
self.head("while")?;
self.s.space()?;
self.print_block_with_attrs(blk, attrs)?;
}
- ast::ExprKind::WhileLet(ref pat, ref expr, ref blk, opt_ident) => {
- if let Some(ident) = opt_ident {
- self.print_ident(ident.node)?;
+ ast::ExprKind::WhileLet(ref pat, ref expr, ref blk, opt_label) => {
+ if let Some(label) = opt_label {
+ self.print_ident(label.ident)?;
self.word_space(":")?;
}
self.head("while let")?;
self.s.space()?;
self.print_block_with_attrs(blk, attrs)?;
}
- ast::ExprKind::ForLoop(ref pat, ref iter, ref blk, opt_ident) => {
- if let Some(ident) = opt_ident {
- self.print_ident(ident.node)?;
+ ast::ExprKind::ForLoop(ref pat, ref iter, ref blk, opt_label) => {
+ if let Some(label) = opt_label {
+ self.print_ident(label.ident)?;
self.word_space(":")?;
}
self.head("for")?;
self.s.space()?;
self.print_block_with_attrs(blk, attrs)?;
}
- ast::ExprKind::Loop(ref blk, opt_ident) => {
- if let Some(ident) = opt_ident {
- self.print_ident(ident.node)?;
+ ast::ExprKind::Loop(ref blk, opt_label) => {
+ if let Some(label) = opt_label {
+ self.print_ident(label.ident)?;
self.word_space(":")?;
}
self.head("loop")?;
ast::ExprKind::Path(Some(ref qself), ref path) => {
self.print_qpath(path, qself, true)?
}
- ast::ExprKind::Break(opt_ident, ref opt_expr) => {
+ ast::ExprKind::Break(opt_label, ref opt_expr) => {
self.s.word("break")?;
self.s.space()?;
- if let Some(ident) = opt_ident {
- self.print_ident(ident.node)?;
+ if let Some(label) = opt_label {
+ self.print_ident(label.ident)?;
self.s.space()?;
}
if let Some(ref expr) = *opt_expr {
self.s.space()?;
}
}
- ast::ExprKind::Continue(opt_ident) => {
+ ast::ExprKind::Continue(opt_label) => {
self.s.word("continue")?;
self.s.space()?;
- if let Some(ident) = opt_ident {
- self.print_ident(ident.node)?;
+ if let Some(label) = opt_label {
+ self.print_ident(label.ident)?;
self.s.space()?
}
}
fn visit_variant(&mut self, v: &'ast Variant, g: &'ast Generics, item_id: NodeId) {
walk_variant(self, v, g, item_id)
}
+ fn visit_label(&mut self, label: &'ast Label) {
+ walk_label(self, label)
+ }
fn visit_lifetime(&mut self, lifetime: &'ast Lifetime) {
walk_lifetime(self, lifetime)
}
}
}
-pub fn walk_opt_name<'a, V: Visitor<'a>>(visitor: &mut V, span: Span, opt_name: Option<Name>) {
- if let Some(name) = opt_name {
- visitor.visit_name(span, name);
- }
-}
-
-pub fn walk_opt_ident<'a, V: Visitor<'a>>(visitor: &mut V, span: Span, opt_ident: Option<Ident>) {
- if let Some(ident) = opt_ident {
- visitor.visit_ident(span, ident);
- }
-}
-
-pub fn walk_opt_sp_ident<'a, V: Visitor<'a>>(visitor: &mut V,
- opt_sp_ident: &Option<Spanned<Ident>>) {
- if let Some(ref sp_ident) = *opt_sp_ident {
- visitor.visit_ident(sp_ident.span, sp_ident.node);
- }
-}
-
pub fn walk_ident<'a, V: Visitor<'a>>(visitor: &mut V, span: Span, ident: Ident) {
visitor.visit_name(span, ident.name);
}
walk_list!(visitor, visit_expr, &local.init);
}
+pub fn walk_label<'a, V: Visitor<'a>>(visitor: &mut V, label: &'a Label) {
+ visitor.visit_ident(label.span, label.ident);
+}
+
pub fn walk_lifetime<'a, V: Visitor<'a>>(visitor: &mut V, lifetime: &'a Lifetime) {
visitor.visit_ident(lifetime.span, lifetime.ident);
}
visitor.visit_ident(item.span, item.ident);
match item.node {
ItemKind::ExternCrate(opt_name) => {
- walk_opt_name(visitor, item.span, opt_name)
+ if let Some(name) = opt_name {
+ visitor.visit_name(item.span, name);
+ }
}
ItemKind::Use(ref use_tree) => {
visitor.visit_use_tree(use_tree, item.id, false)
pub fn walk_struct_field<'a, V: Visitor<'a>>(visitor: &mut V, struct_field: &'a StructField) {
visitor.visit_vis(&struct_field.vis);
- walk_opt_ident(visitor, struct_field.span, struct_field.ident);
+ if let Some(ident) = struct_field.ident {
+ visitor.visit_ident(struct_field.span, ident);
+ }
visitor.visit_ty(&struct_field.ty);
walk_list!(visitor, visit_attribute, &struct_field.attrs);
}
visitor.visit_block(if_block);
walk_list!(visitor, visit_expr, optional_else);
}
- ExprKind::While(ref subexpression, ref block, ref opt_sp_ident) => {
+ ExprKind::While(ref subexpression, ref block, ref opt_label) => {
+ walk_list!(visitor, visit_label, opt_label);
visitor.visit_expr(subexpression);
visitor.visit_block(block);
- walk_opt_sp_ident(visitor, opt_sp_ident);
}
ExprKind::IfLet(ref pattern, ref subexpression, ref if_block, ref optional_else) => {
visitor.visit_pat(pattern);
visitor.visit_block(if_block);
walk_list!(visitor, visit_expr, optional_else);
}
- ExprKind::WhileLet(ref pattern, ref subexpression, ref block, ref opt_sp_ident) => {
+ ExprKind::WhileLet(ref pattern, ref subexpression, ref block, ref opt_label) => {
+ walk_list!(visitor, visit_label, opt_label);
visitor.visit_pat(pattern);
visitor.visit_expr(subexpression);
visitor.visit_block(block);
- walk_opt_sp_ident(visitor, opt_sp_ident);
}
- ExprKind::ForLoop(ref pattern, ref subexpression, ref block, ref opt_sp_ident) => {
+ ExprKind::ForLoop(ref pattern, ref subexpression, ref block, ref opt_label) => {
+ walk_list!(visitor, visit_label, opt_label);
visitor.visit_pat(pattern);
visitor.visit_expr(subexpression);
visitor.visit_block(block);
- walk_opt_sp_ident(visitor, opt_sp_ident);
}
- ExprKind::Loop(ref block, ref opt_sp_ident) => {
+ ExprKind::Loop(ref block, ref opt_label) => {
+ walk_list!(visitor, visit_label, opt_label);
visitor.visit_block(block);
- walk_opt_sp_ident(visitor, opt_sp_ident);
}
ExprKind::Match(ref subexpression, ref arms) => {
visitor.visit_expr(subexpression);
}
visitor.visit_path(path, expression.id)
}
- ExprKind::Break(ref opt_sp_ident, ref opt_expr) => {
- walk_opt_sp_ident(visitor, opt_sp_ident);
+ ExprKind::Break(ref opt_label, ref opt_expr) => {
+ walk_list!(visitor, visit_label, opt_label);
walk_list!(visitor, visit_expr, opt_expr);
}
- ExprKind::Continue(ref opt_sp_ident) => {
- walk_opt_sp_ident(visitor, opt_sp_ident);
+ ExprKind::Continue(ref opt_label) => {
+ walk_list!(visitor, visit_label, opt_label);
}
ExprKind::Ret(ref optional_expression) => {
walk_list!(visitor, visit_expr, optional_expression);
enum class LLVMRustArchiveKind {
Other,
GNU,
- MIPS64,
BSD,
COFF,
};
switch (Kind) {
case LLVMRustArchiveKind::GNU:
return Archive::K_GNU;
- case LLVMRustArchiveKind::MIPS64:
- return Archive::K_MIPS64;
case LLVMRustArchiveKind::BSD:
return Archive::K_BSD;
case LLVMRustArchiveKind::COFF:
Members.push_back(std::move(*MOrErr));
}
}
- auto Pair = writeArchive(Dst, Members, WriteSymbtab, Kind, true, false);
- if (!Pair.second)
+ auto Result = writeArchive(Dst, Members, WriteSymbtab, Kind, true, false);
+#if LLVM_VERSION_GE(6, 0)
+ if (!Result)
return LLVMRustResult::Success;
- LLVMRustSetLastError(Pair.second.message().c_str());
+ LLVMRustSetLastError(toString(std::move(Result)).c_str());
+#else
+ if (!Result.second)
+ return LLVMRustResult::Success;
+ LLVMRustSetLastError(Result.second.message().c_str());
+#endif
+
return LLVMRustResult::Failure;
}
#include "llvm/Support/FileSystem.h"
#include "llvm/Support/Host.h"
#include "llvm/Target/TargetMachine.h"
-#include "llvm/Target/TargetSubtargetInfo.h"
#include "llvm/Transforms/IPO/PassManagerBuilder.h"
+#if LLVM_VERSION_GE(6, 0)
+#include "llvm/CodeGen/TargetSubtargetInfo.h"
+#include "llvm/IR/IntrinsicInst.h"
+#else
+#include "llvm/Target/TargetSubtargetInfo.h"
+#endif
+
#if LLVM_VERSION_GE(4, 0)
#include "llvm/Transforms/IPO/AlwaysInliner.h"
#include "llvm/Transforms/IPO/FunctionImport.h"
enum class LLVMRustCodeModel {
Other,
- Default,
- JITDefault,
Small,
Kernel,
Medium,
Large,
+ None,
};
static CodeModel::Model fromRust(LLVMRustCodeModel Model) {
switch (Model) {
- case LLVMRustCodeModel::Default:
- return CodeModel::Default;
- case LLVMRustCodeModel::JITDefault:
- return CodeModel::JITDefault;
case LLVMRustCodeModel::Small:
return CodeModel::Small;
case LLVMRustCodeModel::Kernel:
bool TrapUnreachable,
bool Singlethread) {
- auto CM = fromRust(RustCM);
auto OptLevel = fromRust(RustOptLevel);
auto RM = fromRust(RustReloc);
Options.ThreadModel = ThreadModel::Single;
}
+#if LLVM_VERSION_GE(6, 0)
+ Optional<CodeModel::Model> CM;
+#else
+ CodeModel::Model CM = CodeModel::Model::Default;
+#endif
+ if (RustCM != LLVMRustCodeModel::None)
+ CM = fromRust(RustCM);
TargetMachine *TM = TheTarget->createTargetMachine(
Trip.getTriple(), RealCPU, Feature, Options, RM, CM, OptLevel);
return wrap(TM);
// enable fpmath flag UnsafeAlgebra
extern "C" void LLVMRustSetHasUnsafeAlgebra(LLVMValueRef V) {
if (auto I = dyn_cast<Instruction>(unwrap<Value>(V))) {
+#if LLVM_VERSION_GE(6, 0)
+ I->setFast(true);
+#else
I->setHasUnsafeAlgebra(true);
+#endif
}
}
FlagStaticMember = (1 << 12),
FlagLValueReference = (1 << 13),
FlagRValueReference = (1 << 14),
- FlagMainSubprogram = (1 << 21),
+ FlagExternalTypeRef = (1 << 15),
+ FlagIntroducedVirtual = (1 << 18),
+ FlagBitField = (1 << 19),
+ FlagNoReturn = (1 << 20),
+ FlagMainSubprogram = (1 << 21),
// Do not add values that are not supported by the minimum LLVM
- // version we support!
+ // version we support! see llvm/include/llvm/IR/DebugInfoFlags.def
};
inline LLVMRustDIFlags operator&(LLVMRustDIFlags A, LLVMRustDIFlags B) {
if (isSet(Flags & LLVMRustDIFlags::FlagRValueReference)) {
Result |= DINode::DIFlags::FlagRValueReference;
}
+ if (isSet(Flags & LLVMRustDIFlags::FlagExternalTypeRef)) {
+ Result |= DINode::DIFlags::FlagExternalTypeRef;
+ }
+ if (isSet(Flags & LLVMRustDIFlags::FlagIntroducedVirtual)) {
+ Result |= DINode::DIFlags::FlagIntroducedVirtual;
+ }
+ if (isSet(Flags & LLVMRustDIFlags::FlagBitField)) {
+ Result |= DINode::DIFlags::FlagBitField;
+ }
#if LLVM_RUSTLLVM || LLVM_VERSION_GE(4, 0)
+ if (isSet(Flags & LLVMRustDIFlags::FlagNoReturn)) {
+ Result |= DINode::DIFlags::FlagNoReturn;
+ }
if (isSet(Flags & LLVMRustDIFlags::FlagMainSubprogram)) {
Result |= DINode::DIFlags::FlagMainSubprogram;
}
--- /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-tidy-linelength
+// min-llvm-version 4.0
+
+// compile-flags: -g -C no-prepopulate-passes
+
+// CHECK: {{.*}}DISubprogram{{.*}}name: "foo"{{.*}}DIFlagNoReturn
+
+fn foo() -> ! {
+ loop {}
+}
+
+pub fn main() {
+ foo();
+}
f: T
}
-#[rustc_if_this_changed]
+#[rustc_if_this_changed(Krate)]
type TypeAlias<T> = Foo<T>;
#[rustc_then_this_would_need(ItemVariances)] //~ ERROR OK
--- /dev/null
+// Copyright 2017 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(never_type)]
+
+enum Helper<T, U> {
+ T(T, [!; 0]),
+ #[allow(dead_code)]
+ U(U),
+}
+
+fn transmute<T, U>(t: T) -> U {
+ let Helper::U(u) = Helper::T(t, []);
+ //~^ ERROR refutable pattern in local binding: `T(_, _)` not covered
+ u
+}
+
+fn main() {
+ println!("{:?}", transmute::<&str, (*const u8, u64)>("type safety"));
+}
--- /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.
+
+// Test that attempts to construct infinite types via impl trait fail
+// in a graceful way.
+//
+// Regression test for #38064.
+
+// error-pattern:overflow evaluating the requirement `impl Quux`
+
+#![feature(conservative_impl_trait)]
+
+trait Quux {}
+
+fn foo() -> impl Quux {
+ struct Foo<T>(T);
+ impl<T> Quux for Foo<T> {}
+ Foo(bar())
+}
+
+fn bar() -> impl Quux {
+ struct Bar<T>(T);
+ impl<T> Quux for Bar<T> {}
+ Bar(foo())
+}
+
+// effectively:
+// struct Foo(Bar);
+// struct Bar(Foo);
+// should produce an error about infinite size
+
+fn main() { 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.
+
+// no-prefer-dynamic
+
+#![feature(panic_runtime)]
+#![crate_type = "rlib"]
+#![panic_runtime]
+#![no_std]
+
+extern crate needs_panic_runtime;
+++ /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.
-
-// no-prefer-dynamic
-
-#![feature(panic_runtime)]
-#![crate_type = "rlib"]
-#![panic_runtime]
-#![no_std]
-
-extern crate needs_panic_runtime;
// except according to those terms.
// aux-build:needs-panic-runtime.rs
-// aux-build:runtime-depending-on-panic-runtime.rs
+// aux-build:depends.rs
// error-pattern:cannot depend on a crate that needs a panic runtime
-extern crate runtime_depending_on_panic_runtime;
+extern crate depends;
$(RUSTC) -C extra-filename=foo dummy.rs 2>&1
#Option taking no argument
$(RUSTC) -C lto= dummy.rs 2>&1 | \
- $(CGREP) 'codegen option `lto` takes no value'
+ $(CGREP) 'codegen option `lto` - one of `thin`, `fat`, or'
$(RUSTC) -C lto=1 dummy.rs 2>&1 | \
- $(CGREP) 'codegen option `lto` takes no value'
+ $(CGREP) 'codegen option `lto` - one of `thin`, `fat`, or'
$(RUSTC) -C lto=foo dummy.rs 2>&1 | \
- $(CGREP) 'codegen option `lto` takes no value'
+ $(CGREP) 'codegen option `lto` - one of `thin`, `fat`, or'
$(RUSTC) -C lto dummy.rs
# Should not link dead code...
--- /dev/null
+-include ../tools.mk
+
+all:
+ifeq ($(TARGET),x86_64-unknown-linux-gnu)
+ $(RUSTC) hello.rs -C no_integrated_as
+ $(call RUN,hello)
+endif
--- /dev/null
+// Copyright 2018 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() {
+ println!("Hello, world!");
+}
#![feature(attr_literals)]
#[repr(align(16))]
-pub struct A {
- y: i64,
-}
+pub struct A(i64);
pub extern "C" fn foo(x: A) {}
-fn main() {}
+fn main() {
+ foo(A(0));
+}
+++ /dev/null
-// Copyright 2012 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 Foo {
- fn f(&self) -> isize;
-}
-
-pub struct A {
- pub x: isize
-}
-
-impl Foo for A {
- fn f(&self) -> isize { 10 }
-}
--- /dev/null
+// Copyright 2012 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 Foo {
+ fn f(&self) -> isize;
+}
+
+pub struct A {
+ pub x: isize
+}
+
+impl Foo for A {
+ fn f(&self) -> isize { 10 }
+}
#[cfg(target_arch = "mips64")]
pub fn main() { }
+#[cfg(target_arch = "powerpc")]
+pub fn main() { }
+
#[cfg(target_arch = "powerpc64")]
pub fn main() { }
--- /dev/null
+// Copyright 2018 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: -Clto=fat
+// no-prefer-dynamic
+
+fn main() {
+ println!("hello!");
+}
+
--- /dev/null
+// Copyright 2018 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
+
+#![feature(i128_type)]
+
+#[repr(C)]
+pub struct Foo(i128);
+
+#[no_mangle]
+pub extern "C" fn foo(x: Foo) -> Foo { x }
+
+fn main() {
+ foo(Foo(1));
+}
--- /dev/null
+// Copyright 2018 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(use_nested_groups)]
+#![allow(unused_import)]
+
+use {{}, {}};
+
+fn main() {}
--- /dev/null
+// Copyright 2018 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: -Clto=thin
+// no-prefer-dynamic
+// min-llvm-version 4.0
+
+fn main() {
+ println!("hello!");
+}
// option. This file may not be copied, modified, or distributed
// except according to those terms.
-// compile-flags: -Z thinlto -C codegen-units=8 -O -C lto
+// compile-flags: -C codegen-units=8 -O -C lto=thin
// aux-build:thin-lto-inlines-aux.rs
// min-llvm-version 4.0
// no-prefer-dynamic
// option. This file may not be copied, modified, or distributed
// except according to those terms.
-// aux-build:trait_inheritance_cross_trait_call_xc_aux.rs
+// aux-build:trait_xc_call_aux.rs
-extern crate trait_inheritance_cross_trait_call_xc_aux as aux;
+extern crate trait_xc_call_aux as aux;
use aux::Foo;
// @has intra_links/index.html
// @has - '//a/@href' '../intra_links/struct.ThisType.html'
+// @has - '//a/@href' '../intra_links/struct.ThisType.html#method.this_method'
// @has - '//a/@href' '../intra_links/enum.ThisEnum.html'
+// @has - '//a/@href' '../intra_links/enum.ThisEnum.html#ThisVariant.v'
+// @has - '//a/@href' '../intra_links/trait.ThisTrait.html'
+// @has - '//a/@href' '../intra_links/trait.ThisTrait.html#tymethod.this_associated_method'
+// @has - '//a/@href' '../intra_links/trait.ThisTrait.html#associatedtype.ThisAssociatedType'
+// @has - '//a/@href' '../intra_links/trait.ThisTrait.html#associatedconstant.THIS_ASSOCIATED_CONST'
// @has - '//a/@href' '../intra_links/trait.ThisTrait.html'
// @has - '//a/@href' '../intra_links/type.ThisAlias.html'
// @has - '//a/@href' '../intra_links/union.ThisUnion.html'
//! In this crate we would like to link to:
//!
//! * [`ThisType`](ThisType)
+//! * [`ThisType::this_method`](ThisType::this_method)
//! * [`ThisEnum`](ThisEnum)
+//! * [`ThisEnum::ThisVariant`](ThisEnum::ThisVariant)
//! * [`ThisTrait`](ThisTrait)
+//! * [`ThisTrait::this_associated_method`](ThisTrait::this_associated_method)
+//! * [`ThisTrait::ThisAssociatedType`](ThisTrait::ThisAssociatedType)
+//! * [`ThisTrait::THIS_ASSOCIATED_CONST`](ThisTrait::THIS_ASSOCIATED_CONST)
//! * [`ThisAlias`](ThisAlias)
//! * [`ThisUnion`](ThisUnion)
//! * [`this_function`](this_function())
}
pub struct ThisType;
+
+impl ThisType {
+ pub fn this_method() {}
+}
pub enum ThisEnum { ThisVariant, }
-pub trait ThisTrait {}
+pub trait ThisTrait {
+ type ThisAssociatedType;
+ const THIS_ASSOCIATED_CONST: u8;
+ fn this_associated_method();
+}
pub type ThisAlias = Result<(), ()>;
pub union ThisUnion { this_field: usize, }
--- /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.
+
+// Regression test for #47511: anonymous lifetimes can appear
+// unconstrained in a return type, but only if they appear just once
+// in the input, as the input to a projection.
+
+fn f(_: X) -> X {
+ //~^ ERROR return type references an anonymous lifetime
+ unimplemented!()
+}
+
+fn g<'a>(_: X<'a>) -> X<'a> {
+ //~^ ERROR return type references lifetime `'a`, which is not constrained
+ unimplemented!()
+}
+
+type X<'a> = <&'a () as Trait>::Value;
+
+trait Trait {
+ type Value;
+}
+
+impl<'a> Trait for &'a () {
+ type Value = ();
+}
+
+fn main() {}
--- /dev/null
+error[E0581]: return type references an anonymous lifetime which is not constrained by the fn input types
+ --> $DIR/issue-47511.rs:15:15
+ |
+15 | fn f(_: X) -> X {
+ | ^
+ |
+ = note: lifetimes appearing in an associated type are not considered constrained
+
+error[E0581]: return type references lifetime `'a`, which is not constrained by the fn input types
+ --> $DIR/issue-47511.rs:20:23
+ |
+20 | fn g<'a>(_: X<'a>) -> X<'a> {
+ | ^^^^^
+
+error: aborting due to 2 previous errors
+
projects / rust.git / commitdiff