fix __rust_alloc_error_handler comment
`__rust_alloc_error_handler` was added in the same `extern` block as the allocator functions, but the comment there was not actually correct for `__rust_alloc_error_handler`. So move it down to the rest of the default allocator handling with a fixed comment. At least the comment reflects my understanding of what happens, please check carefully. :)
r? @Amanieu Cc @haraldh
Cleanup of `eat_while()` in lexer
The size of a lexer Token was inflated by the largest `TokenKind` variants `LiteralKind::RawStr` and `RawByteStr`, because
* it used `usize` although `u32` is sufficient in rustc, since crates must be smaller than 4GB,
* and it stored the 20 bytes big `RawStrError` enum for error reporting.
If a raw string is invalid, it now needs to be reparsed to get the `RawStrError` data, but that is a very cold code path.
Technically this breaks other tools that depend on rustc_lexer because they are now also restricted to a max file size of 4GB. But this shouldn't matter in practice, and rustc_lexer isn't stable anyway.
Can I also get a perf run?
Edit: This makes no difference in performance. The PR now only contains a small cleanup.
Link to documentation-specific guidelines.
Changed contribution information URL because it's not obvious how to get from the current URL to the documentation-specific content.
The current URL points to this "Getting Started" page, which contains nothing specific about documentation[*] and instead launches into how to *build* `rustc` which is not a strict prerequisite for contributing documentation fixes:
* https://rustc-dev-guide.rust-lang.org/getting-started.html
[*] The most specific content is a "Writing documentation" bullet point which is not itself a link to anything (I guess a patch for that might be helpful too).
### Why?
Making this change will make it easier for people who wish to make small "drive by" documentation fixes (and read contribution guidelines ;) ) which I find are often how I start contributing to a project. (Exhibit A: https://github.com/rust-lang/rust/pull/77050 :) )
### Background
My impression is the change of content linked is an unintentional change due to a couple of other changes:
* Originally, the link pointed to `contributing.md` which started with a "table of contents" linking to each section. But the content in `contributing.md` was removed and replaced with a link to the "Getting Started" section here:
* 3f6928f1f6 (diff-6a3371457528722a734f3c51d9238c13L1)
But the changed link doesn't actually point to the equivalent content, which is now located here:
* https://rustc-dev-guide.rust-lang.org/contributing.html
(If the "Guide to Rustc Development" is now considered the canonical location of "How to Contribute" content it might be a good idea to merge some of the "Contributing" Introduction section into the "Getting Started" section.)
* This was then compounded by changing the link from `contributing.md` to `contributing.html` here:
* https://github.com/rust-lang/rust/pull/74037/files#diff-242481015141f373dcb178e93cffa850L88
In order to even find the new location of the previous `contributing.md` content I ended up needing to do a GitHub search of the `rust-lang` org for the phrase "Documentation improvements are very welcome". :D
Fix error checking in posix_spawn implementation of Command
* Check for errors returned from posix_spawn*_init functions
* Check for non-zero return value from posix_spawn functions
rustc_target: Refactor away `TargetResult`
Follow-up to https://github.com/rust-lang/rust/pull/77202.
Construction of a built-in target is always infallible now, so `TargetResult` is no longer necessary.
The second commit contains some further cleanup based on built-in target construction being infallible.
Always use the Rust version in package names
The format of the tarballs produced by CI is roughly the following:
{component}-{release}-{target}.{ext}
While on the beta and nightly channels `{release}` is just the channel name, on the stable channel is either the Rust version or the version of the component we're shipping:
cargo-0.47.0-x86_64-unknown-linux-gnu.tar.xz
clippy-0.0.212-x86_64-unknown-linux-gnu.tar.xz
llvm-tools-1.46.0-x86_64-unknown-linux-gnu.tar.xz
miri-0.1.0-x86_64-unknown-linux-gnu.tar.xz
rls-1.41.0-x86_64-unknown-linux-gnu.tar.xz
rust-1.46.0-x86_64-unknown-linux-gnu.tar.xz
...
This makes it really hard to get the package URL without having access to the manifest (and there is no manifest on ci-artifacts.rlo), as there is no consistent version number to use.
This PR addresses the problem by always using the Rust version number as `{release}` for the stable channel, regardless of the version number of the component we're shipping. I chose that instead of "stable" to avoid breaking the URL scheme *that* much.
Rustup should not be affected by this change, as it fetches the URLs from the manifest. Unfortunately we don't have a way to test other clients before making a stable release, as this change only affects the stable channel.
r? `@Mark-Simulacrum`
Warn on broken intra-doc links added to cross-crate re-exports
This emits `broken_intra_doc_links` for docs applied to pub use statements that point to external items and are inlined.
Does not address #77200 - any existing broken links from the original crate will not show warnings.
r? `@jyn514`
unix/vxworks: make DirEntry slightly smaller
`DirEntry` contains a `ReadDir` handle, which used to just be a wrapper
on `Arc<InnerReadDir>`. Commit af75314ecd added `end_of_stream: bool`
which is not needed by `DirEntry`, but adds 8 bytes after padding. We
can let `DirEntry` have an `Arc<InnerReadDir>` directly to avoid that.
`DirEntry` contains a `ReadDir` handle, which used to just be a wrapper
on `Arc<InnerReadDir>`. Commit af75314ecd added `end_of_stream: bool`
which is not needed by `DirEntry`, but adds 8 bytes after padding. We
can let `DirEntry` have an `Arc<InnerReadDir>` directly to avoid that.
The format of the tarballs produced by CI is roughly the following:
{component}-{release}-{target}.{ext}
While on the beta and nightly channels `{release}` is just the channel
name, on the stable channel is either the Rust version or the version of
the component we're shipping:
cargo-0.47.0-x86_64-unknown-linux-gnu.tar.xz
clippy-0.0.212-x86_64-unknown-linux-gnu.tar.xz
llvm-tools-1.46.0-x86_64-unknown-linux-gnu.tar.xz
miri-0.1.0-x86_64-unknown-linux-gnu.tar.xz
rls-1.41.0-x86_64-unknown-linux-gnu.tar.xz
rust-1.46.0-x86_64-unknown-linux-gnu.tar.xz
...
This makes it really hard to get the package URL without having access
to the manifest (and there is no manifest on ci-artifacts.rlo), as there
is no consistent version number to use.
This commit addresses the problem by always using the Rust version
number as `{release}` for the stable channel, regardless of the version
number of the component we're shipping. I chose that instead of "stable"
to avoid breaking the URL scheme *that* much.
Rustup should not be affected by this change, as it fetches the URLs
from the manifest. Unfortunately we don't have a way to test other
clients before making a stable release, as this change only affects the
stable channel.
Clippy dev subcommand to build and serve website
This PR adds `clippy dev serve` which will pop open a browser with a local rendered 'ALL the Clippy Lints' website, and re-render as you edit stuff.
---
changelog: none
Resolve intra-doc links on additional documentation for re-exports in lexical scope
Fixes https://github.com/rust-lang/rust/issues/77254.
- Preserve the parent module of `DocFragment`s
+ Add `parent_module` to `DocFragment`
+ Require the `parent_module` of the item being inlined
+ Preserve the hir_id for ExternCrates so rustdoc can find the parent module later
+ Take an optional `parent_module` for `build_impl` and `merge_attrs`.
Preserve the difference between parent modules for each doc-comment.
+ Support a single additional re-exports in from_ast. Originally this took a vec but I ended up not using it.
+ Don't require the parent_module for all `impl`s, just inlined items
In particular, this will be `None` whenever the attribute is not on a
re-export.
+ Only store the parent_module, not the HirId
When re-exporting a re-export, the HirId is not available. Fortunately,
`collect_intra_doc_links` doesn't actually need all the info from a
HirId, just the parent module.
- Introduce `Divider`
This distinguishes between documentation on the original from docs on the re-export.
- Use the new module information for intra-doc links
+ Make the parent module conditional on whether the docs are on a re-export
+ Make `resolve_link` take `&Item` instead of `&mut Item`
Previously the borrow checker gave an error about multiple mutable
borrows, because `dox` borrowed from `item`.
+ Fix `crate::` for re-exports
`crate` means something different depending on where the attribute
came from.
+ Make it work for `#[doc]` attributes too
This required combining several attributes as one so they would keep
the links.
r? `@GuillaumeGomez`
Implementation of RFC2867
https://github.com/rust-lang/rust/issues/74727
So I've started work on this, I think my next steps are to make use of the `instruction_set` value in the llvm codegen but this is the point where I begin to get a bit lost. I'm looking at the code but it would be nice to have some guidance on what I've currently done and what I'm doing next 😄
clippy_lints: Do not warn against Box parameter in C FFI
changelog: [`boxed_local`]: don't lint in `extern fn` arguments
Fixes#5542.
When using C FFI, to handle pointers in parameters it is needed to
declare them as `Box` in its Rust-side signature. However, the current
linter warns against the usage of Box stating that "local variable
doesn't need to be boxed here".
This commit fixes it by ignoring functions whose Abi is C.
The posix_spawnattr_init & posix_spawn_file_actions_init might fail,
but their return code is not checked.
Check for non-zero return code and destroy only succesfully initialized
objects.
