Provide structured suggestions when finding structs when expecting a trait
When finding an ADT in a trait object definition provide some solutions. Fix#45817.
Given `<Param as Trait>::Assoc: Ty` suggest `Param: Trait<Assoc = Ty>`. Fix#75829.
Allow generic parameters in intra-doc links
Fixes#62834.
---
The contents of the generics will be mostly ignored (except for warning
if fully-qualified syntax is used, which is currently unsupported in
intra-doc links - see issue #74563).
* Allow links like `Vec<T>`, `Result<T, E>`, and `Option<Box<T>>`
* Allow links like `Vec::<T>::new()`
* Warn on
* Unbalanced angle brackets (e.g. `Vec<T` or `Vec<T>>`)
* Missing type to apply generics to (`<T>` or `<Box<T>>`)
* Use of fully-qualified syntax (`<Vec as IntoIterator>::into_iter`)
* Invalid path separator (`Vec:<T>:new`)
* Too many angle brackets (`Vec<<T>>`)
* Empty angle brackets (`Vec<>`)
Note that this implementation *does* allow some constructs that aren't
valid in the actual Rust syntax, for example `Box::<T>new()`. That may
not be supported in rustdoc in the future; it is an implementation
detail.
They were not formatted correctly, so rustdoc was interpreting some
parts as code. Also cleaned up some other query docs that weren't
causing issues, but were formatted incorrectly.
Update `changelog-seen` in config.toml.example
This got out of sync when the version was bumped last time in #77133
Long-term we may want to find an easier way to maintain this that
doesn't require bumping the version in three different places. Off the
top of my head I can't think of anything, though. It _is_ documented in src/bootstrap/README.md, although I don't know how many people read that.
r? @Mark-Simulacrum
cc @spastorino
doc: disambiguate stat in MetadataExt::as_raw_stat
A few architectures in `os::linux::raw` import `libc::stat`, rather than
defining that type directly. However, that also imports the _function_
called `stat`, which makes this doc link ambiguous:
error: `crate::os::linux::raw::stat` is both a struct and a function
--> library/std/src/os/linux/fs.rs:21:19
|
21 | /// [`stat`]: crate::os::linux::raw::stat
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^ ambiguous link
|
= note: `-D broken-intra-doc-links` implied by `-D warnings`
help: to link to the struct, prefix with the item type
|
21 | /// [`stat`]: struct@crate::os::linux::raw::stat
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
help: to link to the function, add parentheses
|
21 | /// [`stat`]: crate::os::linux::raw::stat()
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
We want the `struct`, so it's now prefixed accordingly.
Clarify the debug-related values should take boolean
#76588 tweaked their placeholders but these values should take boolean and the current placeholders are confusing, at least for me.
Add TraitDef::find_map_relevant_impl
This PR adds a method to `TraitDef`. While `for_each_relevant_impl` covers the general use case, sometimes it's not necessary to scan through all the relevant implementations, so this PR introduces a new method, `find_map_relevant_impl`. I've also replaced the `for_each_relevant_impl` calls where possible.
I'm hoping for a tiny bit of efficiency gain here and there.
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
Add asm! support for mips64
- [x] Updated `src/doc/unstable-book/src/library-features/asm.md`.
- [ ] No vector type support. I don't know much about those types.
cc #76839
This got out of sync when the version was bumped last time.
Long-term we may want to find an easier way to maintain this that
doesn't require bumping the version in three different places. Off the
top of my head I can't think of anything, though.
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`
A few architectures in `os::linux::raw` import `libc::stat`, rather than
defining that type directly. However, that also imports the _function_
called `stat`, which makes this doc link ambiguous:
error: `crate::os::linux::raw::stat` is both a struct and a function
--> library/std/src/os/linux/fs.rs:21:19
|
21 | /// [`stat`]: crate::os::linux::raw::stat
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^ ambiguous link
|
= note: `-D broken-intra-doc-links` implied by `-D warnings`
help: to link to the struct, prefix with the item type
|
21 | /// [`stat`]: struct@crate::os::linux::raw::stat
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
help: to link to the function, add parentheses
|
21 | /// [`stat`]: crate::os::linux::raw::stat()
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
We want the `struct`, so it's now prefixed accordingly.
The cleanup blocks often contain read of discriminants. Teach
RemoveNoopLandingPads to recognize them as no-ops to remove
additional no-op landing pads.
