Fix the `-Zsanitizer_memory_track_origins` error message.
Currently, if you give a bogus value like
`-Zsanitizer-memory-track-origins=99` you get this incorrect error:
```
error: debugging option `sanitizer-memory-track-origins` takes no value
```
This commit fixes it so it gives this instead:
```
error: incorrect value `99` for debugging option `sanitizer-memory-track-origins` - 0, 1, or 2 was expected
```
The commit also makes `parse_sanitizer_memory_track_origins` more
readable.
Rollup merge of #71283 - Amanieu:zprofile, r=davidtwco
Minor improvements to -Zprofile
- `-Zprofile` is broken with codegen units because GCOV assumes that each source file corresponds to one object file. This PR makes `-Zprofile` automatically set codegen units to 1 and gives an error if `-Ccodegen-units=X` is specified on the command line (with `X != 1`).
- The `profiler_builtins` crate is not suitable for `no_std` applications since it contains C code that depends on libc. In such cases a custom implementation of the LLVM gcov API (`llvm_gcov_init`, `llvm_gcda_*`) is needed. This PR adds `-Zno-profiler-runtime` flag which inhibits automatic injection of the `profiler_builtins` crate.
cc @whitequark who implemented the original `-Zprofile` support
This PR gets `cargo clippy --fix -Zunstable-options` into nightly :tada:
Changes:
````
Polished lint and tests
Added final lint and tests
Added basic lint and tests
fix redundant_pattern_matching lint
add lint futures_not_send
Integrate more idiomatic rust changes.
Fix issue #4892.
cargo dev fmt
Cleanup: Rename 'db' variable to 'diag'
question_mark: don't add `as_ref()` for a call expression
unit_arg suggestion may be incorrect
readme: update to cargo clippy --fix command
CI: performing system upgrade fixes broken apt deps on ubuntu 32bit
Do not lint in macros for match lints
[fix] Minor typo in GH Actions 'clippy_dev'
Reenable rustfmt integration test
Add test to map_flatten with an Option
Lint map_flatten if caller is an Option
Apply suggestions from code review
manually fixing formatting at this point lol
fmt
rename field
revert the damn fmt changes
add some tests
split it up for testing but the merge broke tests
dogfood tasted bad
fix rustfmt issue
boycott manish
check for unstable options
Start work on clippy-fix as subcommand
````
Should be save to rollup since we are in no-toolstate-break week (I also didn't see any breakage when testing the clippy with 28742a114)
Changes:
````
Polished lint and tests
Added final lint and tests
Added basic lint and tests
fix redundant_pattern_matching lint
add lint futures_not_send
Integrate more idiomatic rust changes.
Fix issue #4892.
cargo dev fmt
Cleanup: Rename 'db' variable to 'diag'
question_mark: don't add `as_ref()` for a call expression
unit_arg suggestion may be incorrect
readme: update to cargo clippy --fix command
CI: performing system upgrade fixes broken apt deps on ubuntu 32bit
Do not lint in macros for match lints
[fix] Minor typo in GH Actions 'clippy_dev'
Reenable rustfmt integration test
Add test to map_flatten with an Option
Lint map_flatten if caller is an Option
Apply suggestions from code review
manually fixing formatting at this point lol
fmt
rename field
revert the damn fmt changes
add some tests
split it up for testing but the merge broke tests
dogfood tasted bad
fix rustfmt issue
boycott manish
check for unstable options
Start work on clippy-fix as subcommand
````
Auto merge of #71204 - JohnTitor:into-vec, r=wesleywiser
perf: Remove inline attribute from `into_vec()`
It was introduced in #70565 and is likely related to this perf results: https://perf.rust-lang.org/compare.html?start=1edcfc83c6a08ddc5e63fc652b149baea0236e7c&end=d249d756374737eb014079901ac132f1e1ed905e&stat=instructions:u
Let's check if it's related to that.
r? @wesleywiser could you kick off perf check? I don't think I can do it.
Auto merge of #71264 - Dylan-DPC:rollup-njgbey7, r=Dylan-DPC
Rollup of 6 pull requests
Successful merges:
- #70467 (Use `call` instead of `invoke` for functions that cannot unwind )
- #71070 (rustbuild: Remove stage 0 LLD flavor workaround for MSVC)
- #71167 (big-O notation: parenthesis for function calls, explicit multiplication)
- #71238 (Miri: fix typo)
- #71242 (Format Mailmap To Work With GitHub)
- #71243 (Account for use of `try!()` in 2018 edition and guide users in the right direction)
Rollup merge of #71167 - RalfJung:big-o, r=shepmaster
big-O notation: parenthesis for function calls, explicit multiplication
I saw `O(n m log n)` in the docs and found that really hard to parse. In particular, I don't think we should use blank space as syntax for *both* multiplication and function calls, that is just confusing.
This PR makes both multiplication and function calls explicit using Rust-like syntax. If you prefer, I can also leave one of them implicit, but I believe explicit is better here.
While I was at it I also added backticks consistently.
Rollup merge of #70467 - wesleywiser:invoke-vs-call, r=nagisa
Use `call` instead of `invoke` for functions that cannot unwind
The `FnAbi` now knows if the function is allowed to unwind. If a
function isn't allowed to unwind, we can use a `call` instead of an
`invoke`.
This resolves an issue when calling LLVM intrinsics which cannot unwind
LLVM will generate an error if you attempt to invoke them so we need to
ignore cleanup blocks in codegen and generate a call instead.
Rollup merge of #71254 - JOE1994:add_comment, r=jonas-schievink
Minor fix and addition to doc comments
1. Fixed doc comment of struct 'rustc_middle::mir::Location'
Currently, the general explanation of the struct appears at the field
explanation section. I moved and changed the doc comments slightly, so
that the general explanation would appear in the proper location in
docs.
2. Added doc comment explaining 'rustc_mir::util::pretty::write_mir_fn'
Unlike other counterparts, brief explanation for this function was missing,
so I added one.
Rollup merge of #69642 - ecstatic-morse:issue-69615, r=oli-obk
Use query to determine whether function needs const checking
Resolves #69615.
The HIR const-checker was checking the `constness` of a function's `fn_sig` to determine whether a function needed const-checking. Now that const trait impls are a thing, this is no longer enough. All code should use the `is_const_fn_raw` query instead, which takes the constness of the impl block into account.
Minor fix and addition to doc comments
1. Fixed doc comment of struct 'rustc_middle::mir::Location'
Currently, the general explanation of the struct appears at the field
explanation section. I moved and changed the doc comments slightly, so
that the general explanation would appear in the proper location in
docs.
2. Added doc comment explaining 'rustc_mir::util::pretty::write_mir_fn'
Unlike other counterparts, brief explanation for this function was missing,
so I added one.
Add `ConstKind::Error` and convert `ErrorHandled::Reported` to it.
By replicating the `ty::Error` approach to encoding "an error has occurred", all of the mechanisms that skip redundant/downstream errors are engaged and help out (see the reduction in test output).
This PR also adds `ErrorHandled::Linted` for the lint case because using `ErrorHandled::Reported` *without* having emitted an error that is *guaranteed* to stop compilation, is incorrect now.
r? @oli-obk cc @rust-lang/wg-const-eval @varkor @yodaldevoid
Rollup merge of #71225 - leocassarani:patch-1, r=jonas-schievink
Fix typo in Default trait docs: Provides -> Provide
An earlier commit (99ed06e) accidentally changed this paragraph from the original, imperative `Provide` to the present tense `Provides`. The latter is indeed the standard for Rustdoc comments relating to a function or method, but this snippet is introducing the `Default` trait in general terms and not talking about any particular function. I believe this change was likely made in error and should be reverted.
I don't think we say "undefined value" or anything like that anywhere in the docs or so, but we do use the term "uninitialized memory", so I think we should do the same here.
Longer-term, I think we should also internally rename "undef" to "uninit".
Rollup merge of #70910 - rakshith-ravi:master, r=cuviper
Hides default fns inside Fuse impl to avoid exposing it to any crate
Fixes #70796
@cuviper I've added some default, private traits to do the job for us. If required, I can expose them to a specific visibility if you want to call these functions for #70332
Leo Cassarani [Thu, 16 Apr 2020 21:30:53 +0000 (22:30 +0100)]
Fix typo in Default trait docs: Provides -> Provide
An earlier commit (99ed06e) accidentally changed this paragraph from the
original, imperative "Provide" to the present tense "Provides". The
latter is indeed the standard for Rustdoc comments relating to a
function or method, but this snippet is introducing the Default trait in
general terms and not talking about any particular function. I believe
this change was likely made in error and should be reverted.
Auto merge of #71223 - Dylan-DPC:rollup-z5itu39, r=Dylan-DPC
Rollup of 5 pull requests
Successful merges:
- #70611 (Add long error explanation for E0708 #61137)
- #71197 (Don't use the HirId to NodeId map in MIR)
- #71211 (Update cargo)
- #71219 (Minor fixes to doc comments of 'VecDeque')
- #71221 (Dogfood or_patterns in rustdoc)
Rollup merge of #71219 - JOE1994:patch-4, r=Mark-Simulacrum
Minor fixes to doc comments of 'VecDeque'
1. Changed descriptions of `fn get` & `fn get_mut`.
Since both of these functions are returning references, and not the owned value, I thought the doc comments could be fixed to be consistent with doc comments of `fn front` & `fn front_mut`.
2. Other changes are minor fixes or additions for clarification.
Rollup merge of #71211 - ehuss:update-cargo, r=ehuss
Update cargo
3 commits in 74e3a7d5b756d7c0e94399fc29fcd154e792c22a..ebda5065ee8a1e46801380abcbac21a25bc7e755
2020-04-13 20:41:52 +0000 to 2020-04-16 14:28:43 +0000
- Don't use debug display for error object. (rust-lang/cargo#8119)
- Add backwards-compatibility for old cargo-tree flags. (rust-lang/cargo#8115)
- Try to avoid panics on buggy (?) clocks (rust-lang/cargo#8114)
Rollup merge of #71197 - ljedrz:unsafe_unused, r=ecstatic-morse
Don't use the HirId to NodeId map in MIR
Another step towards not having to build a `HirId` to `NodeId` map other than for doc and RLS purposes.
We are currently sorting `unsafe` blocks by `NodeId` in `check_unsafety`; change it to sorting by `Span` instead; this passes the tests, but better ideas are welcome.
In addition, simplify the split between the used and unused `unsafe` blocks for readability and less sorting.
Youngsuk Kim [Thu, 16 Apr 2020 20:26:14 +0000 (16:26 -0400)]
Minor fixes to doc comments of 'VecDequeue'
1. Changed descriptions of `fn get` & `fn get_mut`.
Since both of these functions are returning references, and not the owned value, I thought the doc comments could be fixed to be consistent with doc comments of `fn front` & `fn front_mut`.
2. Other changes are minor fixes or additions for clarification.
Auto merge of #71201 - Dylan-DPC:rollup-23202uf, r=Dylan-DPC
Rollup of 5 pull requests
Successful merges:
- #70566 (Don't bail out before linting in generic contexts.)
- #71141 (Provide better compiler output when using `?` on `Option` in fn returning `Result` and vice-versa)
- #71149 (remove an impossible branch from check_consts)
- #71179 (fix more clippy warnings)
- #71191 (Clean up E0520 explanation)
Auto merge of #70831 - sfackler:shrink-future-stack, r=matthewjasper
Remove a stack frame from .await calls
The stack frames when `.await`ing one async fn from another currently look like this:
```
12: foo::b::{{closure}}
at src/main.rs:2
13: <core::future::from_generator::GenFuture<T> as core::future::future::Future>::poll
at /home/sfackler/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/src/libcore/future/mod.rs:66
14: core::future::poll_with_context
at /home/sfackler/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/src/libcore/future/mod.rs:84
15: foo::a::{{closure}}
at src/main.rs:6
```
Since the move away from using TLS to pass the Context around, it's now easy to remove frame 14 by removing poll_with_context in favor of calling Future::poll directly. This still leaves the `GenFuture` frame, but that seems significantly harder to deal with.
It also improves diagnostics a bit since they no longer talk about the private poll_with_context function.
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