Rollup of 16 pull requests #78846
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Rollup of 16 pull requests #78846
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Insta-stabilize the methods `is_ready` and `is_pending` of `Poll`. Possible because of the recent stabilization of const control flow. Also adds a test for these methods in a const context.
POSIX leaves it implementation-defined whether `link` follows symlinks. In practice, for example, on Linux it does not and on FreeBSD it does. So, switch to `linkat`, so that we can pick a behavior rather than depending on OS defaults. Pick the option to not follow symlinks. This is somewhat arbitrary, but seems the less surprising choice because hard linking is a very low-level feature which requires the source and destination to be on the same mounted filesystem, and following a symbolic link could end up in a different mounted filesystem.
Due to the recent release of 1.47.0, this PR will be stabilized in 1.49.0 instead of 1.48.0.
Also mention that where possible, `hard_link` does not follow symlinks.
According to [the bionic status page], `linkat` has only been available since API level 21. Since Android is based on Linux and Linux's `link` doesn't follow symlinks, just use `link` on Android. [the bionic status page]: https://android.googlesource.com/platform/bionic/+/master/docs/status.md
This adds a binary called `x` in `src/tools/x`. All it does is check the current directory and its ancestors for a file called `x.py`, and if it finds one, runs it. By installing x, you can easily `x.py` from any subdirectory. It can be installed globally with `cargo install --path src/tools/x`
Also includes: - Cell::into_inner - RefCell::into_inner - Atomic*::into_inner
Previously, trying to allow this would give another error! ``` warning: unknown lint: `private_intra_doc_links` --> private.rs:1:10 | 1 | #![allow(private_intra_doc_links)] | ^^^^^^^^^^^^^^^^^^^^^^^ help: did you mean: `broken_intra_doc_links` | = note: `#[warn(unknown_lints)]` on by default warning: public documentation for `DocMe` links to private item `DontDocMe` --> private.rs:2:11 | 2 | /// docs [DontDocMe] | ^^^^^^^^^ this item is private | = note: `#[warn(private_intra_doc_links)]` on by default = note: this link will resolve properly if you pass `--document-private-items` ```
This is really starting to get out of hand. Rustdoc should instead allow all lints in the rustdoc lint group.
Partially fix rust-lang#55002, deprecate in another release Co-authored-by: Ashley Mannix <kodraus@hey.com> Update stable version for stabilize_spin_loop Co-authored-by: Joshua Nelson <joshua@yottadb.com> Use better example for spinlock As suggested by KodrAus Remove renamed_spin_loop already available in master Fix spin loop example
Includes: - io::Cursor::new - io::Cursor::get_ref - io::Cursor::position - io::empty - io::repeat - io::sink
…rAus Stabilize hint::spin_loop Partially fix rust-lang#55002, deprecate in another release r? ```@KodrAus```
Stabilize `Poll::is_ready` and `is_pending` as const Insta-stabilize the methods `is_ready` and `is_pending` of `std::task::Poll` as const, in the same way as [PR#76198](rust-lang#76198). Possible because of the recent stabilization of const control flow. Part of rust-lang#76225.
…olnay Define `fs::hard_link` to not follow symlinks. POSIX leaves it [implementation-defined] whether `link` follows symlinks. In practice, for example, on Linux it does not and on FreeBSD it does. So, switch to `linkat`, so that we can pick a behavior rather than depending on OS defaults. Pick the option to not follow symlinks. This is somewhat arbitrary, but seems the less surprising choice because hard linking is a very low-level feature which requires the source and destination to be on the same mounted filesystem, and following a symbolic link could end up in a different mounted filesystem. [implementation-defined]: https://pubs.opengroup.org/onlinepubs/9699919799/functions/link.html
make concurrency helper more pleasant to read
Recognize `private_intra_doc_links` as a lint Previously, trying to allow this would give another error! ``` warning: unknown lint: `private_intra_doc_links` --> private.rs:1:10 | 1 | #![allow(private_intra_doc_links)] | ^^^^^^^^^^^^^^^^^^^^^^^ help: did you mean: `broken_intra_doc_links` | = note: `#[warn(unknown_lints)]` on by default warning: public documentation for `DocMe` links to private item `DontDocMe` --> private.rs:2:11 | 2 | /// docs [DontDocMe] | ^^^^^^^^^ this item is private | = note: `#[warn(private_intra_doc_links)]` on by default = note: this link will resolve properly if you pass `--document-private-items` ``` Fixes the issue found in rust-lang#77249 (comment). r? ````@Manishearth```` Does anyone know why this additional step is necessary? It seems weird this has to be declared in 3 different places.
… r=Mark-Simulacrum BTreeMap: stop mistaking node for an orderly place A second mistake in rust-lang#77612 was to ignore the node module's rightful comment "this module doesn't care whether the entries are sorted". And there's a much simpler way to visit the keys in order, if you check this separately from a single pass checking everything. r? ````@Mark-Simulacrum````
…crum fix some incorrect aliasing in the BTree This line is wrong: ``` ptr::copy(slice.as_ptr().add(idx), slice.as_mut_ptr().add(idx + 1), slice.len() - idx); ``` When `slice.as_mut_ptr()` is called, that creates a mutable reference to the entire slice, which invalidates the raw pointer previously returned by `slice.as_ptr()`. (Miri currently misses this because raw pointers are not tracked properly.) Cc ````@ssomers````
…-size, r=jyn514 Remove FIXME comment in print_type_sizes ui test suite ## Overview Helps with rust-lang#62277 > The type sizes are likely only printed when the actual layout is computed. For generic types, this only happens during codegen. ref: https://rust-lang.zulipchat.com/#narrow/stream/182449-t-compiler.2Fhelp/topic/Codegen.20process.20question/near/215836807 Some tests like `multiple_types.rs` are passed even if using `check-pass`. But tests should be agnostic to when the actual layout is computed. The `build-pass` is intentionally used for them. I remove FIXME comments.
Use SOCK_CLOEXEC and accept4() on more platforms. This PR enables the use of `SOCK_CLOEXEC` and `accept4` on more platforms. ----- Android uses the linux kernel, so it should also support it. DragonflyBSD introduced them in 4.4 (December 2015): https://www.dragonflybsd.org/release44/ FreeBSD introduced them in 10.0 (January 2014): https://wiki.freebsd.org/AtomicCloseOnExec Illumos introduced them in a commit in April 2013, not sure when it was released. It is quite possible that is has always been in Illumos: illumos/illumos-gate@5dbfd19 https://illumos.org/man/3socket/socket https://illumos.org/man/3socket/accept4 NetBSD introduced them in 6.0 (Oktober 2012) and 8.0 (July 2018): https://man.netbsd.org/NetBSD-6.0/socket.2 https://man.netbsd.org/NetBSD-8.0/accept.2 OpenBSD introduced them in 5.7 (May 2015): https://man.openbsd.org/socket https://man.openbsd.org/accept
Add a tool to run `x.py` from any subdirectory This adds a binary called `x` in `src/tools/x`. All it does is check the current directory and its ancestors for a file called `x.py`, and if it finds one, runs it. By installing x, you can easily run `x.py` from any subdirectory, and only need to type `x`. It can be installed with `cargo install --path src/tools/x` This is a copy of a [binary I've been using myself when working on rust](https://github.com/casey/bootstrap), currently published to crates.io as `bootstrap`. It could be changed to avoid indirecting through `x.py`, and instead call the bootstrap module directly. However, this seemed like the simplest thing possible, and won't break if the details of how the bootstrap module is invoked change.
…=Mark-Simulacrum Fix run-make tests running when LLVM is disabled The `--cc`, `--cxx`, `--cflags` and `--ar` flags were only passed to compiletest when `builder.config.llvm_enabled()` returned true. This is preventing me from running the tests on cg_clif.
…lnay Constantify `UnsafeCell::into_inner` and related Tracking issue: rust-lang#78729 This PR constantifies: - `UnsafeCell::into_inner` - `Cell::into_inner` - `RefCell::into_inner` - `Atomic*::into_inner` r? ```@dtolnay```
Correct unsigned equivalent of isize to be usize See [rust-lang#74913 (comment)](rust-lang#74913 (comment)) for why this matters. Apparently it hasn't been used anywhere else, though CI will tell for sure.
Make some std::io functions `const` Tracking issue: rust-lang#78812 Make the following functions `const`: - `io::Cursor::new` - `io::Cursor::get_ref` - `io::Cursor::position` - `io::empty` - `io::repeat` - `io::sink` r? ```@dtolnay```
use single char patterns for split() (clippy::single_char_pattern)
…lcnr Small cleanup in `TypeFoldable` derive macro r? `@lcnr`
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@bors r+ p=16 rollup=never |
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📌 Commit 33bc375 has been approved by |
bors
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⌛ Testing commit 33bc375 with merge c11b7a67e5876d4704467954e717c94bb51e2537... |
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Successful merges:
Poll::is_readyandis_pendingas const #76227 (StabilizePoll::is_readyandis_pendingas const)fs::hard_linkto not follow symlinks. #78026 (Definefs::hard_linkto not follow symlinks.)private_intra_doc_linksas a lint #78114 (Recognizeprivate_intra_doc_linksas a lint)x.pyfrom any subdirectory #78658 (Add a tool to runx.pyfrom any subdirectory)UnsafeCell::into_innerand related #78728 (ConstantifyUnsafeCell::into_innerand related)const#78811 (Make some std::io functionsconst)TypeFoldablederive macro #78841 (Small cleanup inTypeFoldablederive macro)Failed merges:
r? @ghost
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