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Remove the word "advisory", and make it more explicit that the lock may
be advisory or mandatory depending on platform.
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Update docs for impl keyword
This started as a fix for #79878, but also introduces some structure (headings), and elaborates a tiny bit on impl Trait syntax.
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Improve examples for file locking
The `lock` and `try_lock` documentation states that "if the file not open for writing, it is unspecified whether this function returns an error." With this change, the examples use `File::create` instead of `File::open`, eliminating the possibility of someone blindly copying code with unspecified behavior.
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rustfmt fails to format this match expression, because it has several
long string literals over the maximum line width. This seems to exhibit
rustfmt issues #3863 (Gives up on chains if any line is too long) and
#3156 (Fail to format match arm when other arm has long line).
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Update `compiler-builtins` to 0.1.146
Exposes the error function so we can expose this in the standard library [1].
[1]: https://github.com/rust-lang/compiler-builtins/pull/753
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cc #136756
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ignore win_delete_self test in Miri
Follow-up to https://github.com/rust-lang/rust/pull/134679, fixes miri-test-libstd on Windows
Cc `@ChrisDenton` `@Mark-Simulacrum`
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Some miscellaneous edition-related library tweaks
Some library edition tweaks that can be done separately from upgrading the whole standard library to edition 2024 (which is blocked on getting the submodules upgraded, for example)
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Use an `Option` for `FindNextFileHandle` in `ReadDir` instead of `INVALID_FILE_HANDLE` sentinel value
Sometimes we store an invalid handle when we don't want to return an error. We then check the handle before use in order to avoid actually using the invalid handle. However, using an `Option` for this is better and avoids us forgetting to check the handle is valid. This was noticed due to us closing the handle without checking for validity: https://github.com/rust-lang/rust/blob/bd6a6777f5cbbec549f123995026cef76d1e6b84/library/std/src/sys/pal/windows/fs.rs#L148-L151
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Update bootstrap compiler and rustfmt
The rustfmt version we previously used formats things differently from what the latest nightly rustfmt does. This causes issues for subtrees that get formatted both in-tree and in their own repo. Updating the rustfmt used in-tree solves those issues. Also bumped the bootstrap compiler as the stage0 update command always updates both at the same
time.
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Rollup of 5 pull requests
Successful merges:
- #134679 (Windows: remove readonly files)
- #136213 (Allow Rust to use a number of libc filesystem calls)
- #136530 (Implement `x perf` directly in bootstrap)
- #136601 (Detect (non-raw) borrows of null ZST pointers in CheckNull)
- #136659 (Pick the max DWARF version when LTO'ing modules with different versions )
r? `@ghost`
`@rustbot` modify labels: rollup
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Clean up `HashMap` and `HashSet` docs.
This commit makes some small, pedantic changes to the docs for `HashMap` and `HashSet`, which fixes that:
* "HashMap" is not always formatted as code (as in `HashMap`), and that
* `HashSet` sometimes references `HashMap` instead of itself.
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Allow Rust to use a number of libc filesystem calls
This allows Rust on Fuchsia to use a number of function calls from libc:
* dirfd
* fdatasync
* flock with LOCK_EX, LOCK_SH, LOCK_NB, LOCK_UN
* fstatat
cc #120426
try-job: dist-various-2
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Windows: remove readonly files
When calling `remove_file`, we shouldn't fail to delete readonly files. As the test makes clear, this make the Windows behaviour consistent with other platforms. This also makes us internally consistent with `remove_dir_all`.
try-job: x86_64-msvc-ext1
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std: move `io` module out of `pal`, get rid of `sys_common::io`
Part of #117276.
This does two related things:
1. It moves the platform-specific definitions for `IoSlice`, `IoSliceMut` and `is_terminal` out of `pal` and into `sys` and unifies some of them.
2. It gets rid of `sys_common::io`, moving the non-platform-specific test helpers into `std::test_helpers` and the buffer size definition to the new `sys::io` module.
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Rollup of 7 pull requests
Successful merges:
- #135179 (Make sure to use `Receiver` trait when extracting object method candidate)
- #136554 (Add `opt_alias_variances` and use it in outlives code)
- #136556 ([AIX] Update tests/ui/wait-forked-but-failed-child.rs to accomodate exiting and idle processes.)
- #136589 (Enable "jump to def" feature on rustc docs)
- #136615 (sys: net: Add UEFI stubs)
- #136635 (Remove outdated `base_port` calculation in std net test)
- #136682 (Move two windows process tests to tests/ui)
r? `@ghost`
`@rustbot` modify labels: rollup
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Exposes the error function so we can expose this in the standard
library [1].
[1]: https://github.com/rust-lang/compiler-builtins/pull/753
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Move two windows process tests to tests/ui
Spawning processes from std unit tests is not something it's well suited for so moving them into tests/ui is more robust and means we don't need to hack around `cmd.exe`.
Follow up to #136630
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Remove outdated `base_port` calculation in std net test
This was never modified since `std::net` was originally introduced in 395709ca6d39ba1e095e404e1d2a169d918b7f0c, when at that time, each CI runner was running multiple jobs concurrently. This seems to have originally caused issues with jobs fighting over the same ports. This is not the case in the current CI infrastructure, so remove this relic in favor of a simple constant base port number.
I double-checked `19600` and nearby port numbers, and this isn't a well-known port number AFAICT[^1].
Closes #136633.
[^1]: At the time of writing.
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sys: net: Add UEFI stubs
- Just a copy of sys/net/unsupported.
- Will make the future net PRs easier to review.
- The reason for a separate folder instead of standalone file is that UEFI has separate the protocols for v4 and v6, and thus will need some abstractions to implement the Rust interface.
r? ``@jhpratt``
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Remove some unnecessary parens in `assert!` conditions
While working on #122661, some of these started triggering our "unnecessary parens" lints due to a change in the `assert!` desugaring. A cursory search identified a few more. Some of these have been carried from before 1.0, were a bulk rename from the previous name of `assert!` left them in that state. I went and removed as many of these unnecessary parens as possible in order to have fewer annoyances in the future if we make the lint smarter.
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Stabilise `Cursor::{get_mut, set_position}` in `const` scenarios.
Closes: #130801
This PR stabilises the `const_mut_cursor` feature gate.
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While working on #122661, some of these started triggering our "unnecessary parens" lints due to a change in the `assert!` desugaring. A cursory search identified a few more. Some of these have been carried from before 1.0, were a bulk rename from the previous name of `assert!` left them in that state. I went and removed as many of these unnecessary parens as possible in order to have fewer annoyances in the future if we make the lint smarter.
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Stabilize `map_many_mut` feature
This PR stabilize `HashMap::get_many_mut` as `HashMap::get_disjoint_mut` and `HashMap::get_many_unchecked_mut` as `HashMap::get_disjoint_unchecked_mut` per FCP.
FCP at https://github.com/rust-lang/rust/issues/97601#issuecomment-2532710423
Fixes #97601
r? libs
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This was never modified since `std::net` was originally introduced, when
each CI job was running multiple jobs concurrently which caused issues
with fighting over the same ports. This is not the case in the current
CI infrastructure, so remove this relic.
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`test_proc_thread_attributes`
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- Just a copy of sys/net/unsupported.
- Will make the future net PRs easier to review.
Signed-off-by: Ayush Singh <ayush@beagleboard.org>
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Update `compiler-builtins` to 0.1.145
This includes https://github.com/rust-lang/compiler-builtins/pull/752 which is required for LLVM 20.
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std: move network code into `sys`
As per #117276, this PR moves `sys_common::net` and the `sys::pal::net` into the newly created `sys::net` module. In order to support #135141, I've moved all the current network code into a separate `connection` module, future functions like `hostname` can live in separate modules.
I'll probably do a follow-up PR and clean up some of the actual code, this is mostly just a reorganization.
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uefi: process: Add support for command environment variables
Set environment variables before launching the process and restore the prior variables after the program exists.
This is the same implementation as the one used by UEFI Shell Execute [0].
[0]: https://github.com/tianocore/edk2/blob/2d2642f4832ebc45cb7d5ba9430b933d953b94f2/ShellPkg/Application/Shell/ShellProtocol.c#L1700
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intrinsic
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Rollup of 6 pull requests
Successful merges:
- #136398 (add UnsafeCell direct access APIs)
- #136465 (Some `rustc_middle` cleanups)
- #136479 (std::fs: further simplify dirent64 handling)
- #136504 (Fix last compare-mode false negatives in tests)
- #136511 (Add `cast_signed` and `cast_unsigned` methods for `NonZero` types)
- #136518 (Add note about `FnPtr` trait being exposed as public bound)
r? `@ghost`
`@rustbot` modify labels: rollup
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This includes [1] which is required for LLVM 20.
[1]: https://github.com/rust-lang/compiler-builtins/pull/752
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