Update grammar in std::cell docs.
Using "having" in both the leading sentence and the bullets is unnecessary.
It makes it read as "it is only possible to have having several immutable...".
split up the first paragraph of doc comments for better summaries
used `./x clippy -Aclippy::all '-Wclippy::too_long_first_doc_paragraph' library/core library/alloc` to find these issues.
Arbitrary self types v2: (unused) Receiver trait
This commit contains a new `Receiver` trait, which is the basis for the Arbitrary Self Types v2 RFC. This allows smart pointers to be method receivers even if they're not Deref.
This is currently unused by the compiler - a subsequent PR will start to use this for method resolution if the `arbitrary_self_types` feature gate is enabled. This is being landed first simply to make review simpler: if people feel this should all be in an atomic PR let me know.
This is a part of the arbitrary self types v2 project, https://github.com/rust-lang/rfcs/pull/3519https://github.com/rust-lang/rust/issues/44874
r? `@wesleywiser`
Using "having" in both the leading sentence and the bullets is unnecessary.
It makes it read as "it is only possible to have having several immutable...".
Implement file_lock feature
This adds lock(), lock_shared(), try_lock(), try_lock_shared(), and unlock() to File gated behind the file_lock feature flag
This is the initial implementation of https://github.com/rust-lang/rust/issues/130994 for Unix and Windows platforms. I will follow it up with an implementation for WASI preview 2
ABI compatibility: remove section on target features
Once https://github.com/rust-lang/rust/pull/127731 lands, we will properly diagnose ABI issues caused by target feature mismatch (at least on tier 1 targets). So I'd say we can remove the corresponding part of the docs here -- this is now something the compiler can take care of, so programmers don't need to be concerned. For now this is just a lint, but that's just a transition period, like in prior cases where we fix I-unsound bugs by adding a new check that goes through the "future incompatibility" stages. We have decided that it's actually a bug that we have ABI risks around target features, and we shouldn't document that bug as-if it was intended behavior.
Cc `@rust-lang/opsem` `@chorman0773` `@veluca93`
remove support for rustc_safe_intrinsic attribute; use rustc_intrinsic functions instead
This brings us one step closer towards removing support for `extern "rust-intrinsic"` blocks, in favor of `#[rustc_intrinsic]` functions.
Also move `#[rustc_intrinsic]` under the `intrinsics` feature gate, to match the `extern "rust-intrinsic"` style.
Initialize channel `Block`s directly on the heap
The channel's `Block::new` was causing a stack overflow because it held
32 item slots, instantiated on the stack before moving to `Box::new`.
The 32x multiplier made modestly-large item sizes untenable.
That block is now initialized directly on the heap.
Fixes#102246
try-job: test-various
Compile `test_num_f128` conditionally on `reliable_f128_math` config
With #132434 merged, our internal SGX CI started failing with:
```
05:27:34 = note: rust-lld: error: undefined symbol: fmodl
05:27:34 >>> referenced by arith.rs:617 (core/src/ops/arith.rs:617)
05:27:34 >>> /home/jenkins/workspace/rust-sgx-ci/rust/build/x86_64-unknown-linux-gnu/stage1-std/x86_64-fortanix-unknown-sgx/release/deps/std-5d5f11eb008c9091.std.d8141acc61ab7ac8-cgu.10.rcgu.o:(std::num::test_num::h7dd9449f6c01fde8)
05:27:34 >>> did you mean: fmodf
05:27:34 >>> defined in: /home/jenkins/workspace/rust-sgx-ci/rust/build/x86_64-unknown-linux-gnu/stage1-std/x86_64-fortanix-unknown-sgx/release/deps/libcompiler_builtins-0376f439a2ebf305.rlib(compiler_builtins-0376f439a2ebf305.compiler_builtins.c22db39d25d6f802-cgu.148.rcgu.o)
```
This originated from the `test_num_f128` test not having the required conditional compilation. This PR fixes that issue.
cc: ````@jethrogb,```` ````@workingjubilee````
core: move intrinsics.rs into intrinsics folder
This makes the rustbot notification we have set up for this folder in `triagebot.toml` actually work. Also IMO it makes more sense to have it all in one folder.
The channel's `Block::new` was causing a stack overflow because it held
32 item slots, instantiated on the stack before moving to `Box::new`.
The 32x multiplier made modestly-large item sizes untenable.
That block is now initialized directly on the heap.
Fixes#102246
unpin and update memchr
I'm unable to build x86_64-pc-windows-gnu Rust due to some weird binutils bug, but thinlto issue seems to be no longer present. Let's give it a go on the CI.
Possibly fixed by https://github.com/rust-lang/rust/pull/129079Fixes#127890
Inline str::repeat
`str` is non-generic and `str.repeat()` doesn't get inlined, which makes it use a slower algorithm in case of 1-char repetitions. Equivalent byte slice does get inlined: https://rust.godbolt.org/z/4arvh97r4
Revert using `HEAP` static in Windows alloc
Fixes#131468
This does the minimum to remove the `HEAP` static that was causing chromium issues. It would be worth having a more substantial look at this module but for now I think this addresses the immediate issue.
cc `@danakj`
Fix an extra newline in rendered std doc
Fixes#132564
(taken from the issue above)
The problem with the formatting is due to that newline between `<code>` and `<svg>`. Any newlines outside of the code (i.e., within elements inside of it) are fine.
Add new unstable feature `const_eq_ignore_ascii_case`
Tracking issue - #131719
Mark `[u8]`, `str` `eq_ignore_ascii_case` functions const
---
The codegen for this implementation matches the existing `iter::zip` implementation better than incrementing with a counter
while loop with counter - https://rust.godbolt.org/z/h9cs5zajc
while let - https://rust.godbolt.org/z/ecMeMjjEb
make char::is_whitespace unstably const
I am adding this to the existing https://github.com/rust-lang/rust/issues/132241 feature gate, since `is_digit` and `is_whitespace` seem similar enough that one can group them together.
Rollup of 8 pull requests
Successful merges:
- #132259 (rustc_codegen_llvm: Add a new 'pc' option to branch-protection)
- #132409 (CI: switch 7 linux jobs to free runners)
- #132498 (Suggest fixing typos and let bindings at the same time)
- #132524 (chore(style): sync submodule exclusion list between tidy and rustfmt)
- #132567 (Properly suggest `E::assoc` when we encounter `E::Variant::assoc`)
- #132571 (add const_eval_select macro to reduce redundancy)
- #132637 (Do not filter empty lint passes & re-do CTFE pass)
- #132642 (Add documentation on `ast::Attribute`)
r? `@ghost`
`@rustbot` modify labels: rollup
add const_eval_select macro to reduce redundancy
I played around a bit with a macro to make const_eval_select invocations look a bit nicer and avoid repeating the argument lists. Here's what I got. What do you think?
I didn't apply this everywhere yet because I wanted to gather feedback first.
The second commit moves the macros from https://github.com/rust-lang/rust/pull/132542 into a more sensible place. It didn't seem worth its own PR and would conflict with this PR if done separately.
Cc ``@oli-obk`` ``@saethlin`` ``@tgross35``
try-job: dist-aarch64-msvc
[core/fmt] Replace checked slice indexing by unchecked to support panic-free code
Fixes#126425
Replace the potentially panicking `[]` indexing with `get_unchecked()` to prevent linking with panic-related code.
Stabilise `const_char_encode_utf16`.
Closes: #130660
This PR stabilises the `const_char_encode_utf16` feature gate (i.e. support for `char::encode_utf16` in constant expressions).
~~Note that the linked tracking issue is as of this writing currently awaiting FCP until 2024-11-02.~~
