add code example showing that file_prefix treats dotfiles as the name of a file, not an extension
This came up in a libs-api meeting while we were reviewing rust-lang/rust#144870
rustdoc: fix caching of intra-doc links on reexports
previously two reexports of the same item would share a set of intra-doc links, which would cause problems if they had two different links with the same text. this was fixed by using the reexport defid as the key, if it is available.
fixes https://github.com/rust-lang/rust/issues/144965
we only merge candidates for trait and normalizes-to goals
so change `fn try_merge_responses` to `fn try_merge_candidates` and just use candidates everywhere.
Potentially slightly faster than the alternative :3
r? ``@compiler-errors`` ``@BoxyUwU``
Enforce tail call type is related to body return type in borrowck
Like all call terminators, tail call terminators instantiate the binder of the callee signature with region variables and equate the arg operand types with that signature's args to ensure that the call is valid.
However, unlike normal call terminators, we were forgetting to also relate the return type of the call terminator to anything. In the case of tail call terminators, the correct thing is to relate it to the return type of the caller function (or in other words, the return local `_0`).
This meant that if the caller's return type had some lifetime constraint, then that constraint wouldn't flow through the signature and affect the args.
This is what's happening in the example test I committed:
```rust
fn link(x: &str) -> &'static str {
become passthrough(x);
}
fn passthrough<T>(t: T) -> T { t }
fn main() {
let x = String::from("hello, world");
let s = link(&x);
drop(x);
println!("{s}");
}
```
Specifically, the type `x` is `'?0 str`, where `'?0` is some *universal* arg. The type of `passthrough` is `fn(&'?1 str) -> &'?1 str`. Equating the args sets `'?0 = '?1`. However, we need to also equate the return type `&'?1 str` to `&'static str` so that we eventually require that `'?0 = 'static`, which is a borrowck error!
-----
Look at the first commit for the functional change, and the second commit is just a refactor because we don't need to pass `Option<BasicBlock>` to `check_call_dest`, but just whether or not the terminator is expected to be diverging (i.e. if the return type is `!`).
Fixesrust-lang/rust#144916
Parser: Recover from attributes applied to types and generic args
r? compiler
Add clearer error messages for invalid attribute usage in types or generic types
fixesrust-lang/rust#135017fixesrust-lang/rust#144132
If the baseline s390x cpu is changed to a newer variant, such as z13,
the vector feature may be enabled by default. When rust is packaged
on fedora 38 and newer, it is set to z13.
Explicitly disable vector support on the baseline test for consistent
results across s390x cpus.
Two optimizations have been done when checking for the context in which
to apply the lint:
- Checking for the mere presence of comments does not require building a
`String` with the comment to then check if it is empty and discard it.
- Checking for the presence of comment can be done after we have checked
that we do have a `if` construct that we intend to lint instead of for
every expression.
changelog: none
r? blyxyas
Two optimizations have been done when checking for the context in which
to apply the lint:
- Checking for the mere presence of comments does not require building a
`String` with the comment to then check if it is empty and discard it.
- Checking for the presence of comment can be done after we have checked
that we do have a `if` construct that we intend to lint instead of for
every expression.
This limits repeated lookups in pre-checks (to determine if a MSRV
should be checked), especially when those require locking up an
interner:
- The `core` crate is looked up once when creating the lint, instead of
comparing the crate name with `sym::core` at every check.
- `span.ctxt().outer_expn_data()` is lookup up only once.
changelog: none
r? blyxyas
Rollup of 12 pull requests
Successful merges:
- rust-lang/rust#144552 (Rehome 33 `tests/ui/issues/` tests to other subdirectories under `tests/ui/`)
- rust-lang/rust#144676 (Add documentation for unstable_feature_bound)
- rust-lang/rust#144836 (Change visibility of Args new function)
- rust-lang/rust#144910 (Add regression tests for seemingly fixed issues)
- rust-lang/rust#144913 ([rustdoc] Fix wrong `i` tooltip icon)
- rust-lang/rust#144924 (compiletest: add hint for when a ui test produces no errors)
- rust-lang/rust#144926 (Correct the use of `must_use` on btree::IterMut)
- rust-lang/rust#144928 (Drop `rust-version` from `rustc_thread_pool`)
- rust-lang/rust#144945 (Autolabel PRs that change explicit tail call tests as `F-explicit_tail_calls`)
- rust-lang/rust#144954 (run-make: Allow blessing snapshot files that don't exist yet)
- rust-lang/rust#144971 (num: Rename `isolate_most_least_significant_one` functions)
- rust-lang/rust#144978 (Fix some doc links for intrinsics)
r? `@ghost`
`@rustbot` modify labels: rollup
This restricts the uses of the unadjusted ABI to LLVM intrinsics. The
Rust ABI works fine for the thread-local shim as it always returns
pointers directly like the backend expects.
Follow-up of https://github.com/rust-lang/rust-clippy/pull/15208.
This PR removes the CSS `bootstrap` dependency which contains 1504 CSS
rules and weights 16.1 kB minified. Considering we used less than 50 of
these rules, it's quite a waste.
So this time, there are minor UI changes:
* The "expand/collapse all" buttons icon changed. It now uses the one
from font-awesome. It's quite close but not exactly the same.
* The layout is slightly different (you need to switch between two tabs
to actually see the difference).
Before this PR:
<img width="719" height="515" alt="image"
src="https://github.com/user-attachments/assets/1f067046-4ee9-49ee-bf38-50a8bf9888f2"
/>
With this PR:
<img width="719" height="515" alt="image"
src="https://github.com/user-attachments/assets/80331c98-1a1e-418f-b481-5b3f5c276926"
/>
With this, we will be able to go even further on reducing the page size
next. =D
This time, the DOM size itself reduced a bit but the difference is too
small to be noteworthy.
r? @samueltardieu
changelog: Remove CSS bootstrap dependency
This limits repeated lookups in pre-checks (to determine if a MSRV
should be checked), especially when those require locking up
an interner:
- The `core` crate is looked up once when creating the lint, instead of
comparing the crate name with `sym::core` at every check.
- `span.ctxt().outer_expn_data()` is lookup up only once.
Fix some doc links for intrinsics
This fixes a few intrinsic docs that had a link directly to itself instead of to the correct function in the `mem` module.
run-make: Allow blessing snapshot files that don't exist yet
This makes it possible to bless the snapshot files used by `diff()` in newly-created run-make tests, without having to create the files manually beforehand.
r? jieyouxu
Drop `rust-version` from `rustc_thread_pool`
The current `rust-version = "1.63"` was inherited from rayon, but it
doesn't make sense to limit this in the compiler workspace. Having any
setting at all has effects on tools like `cargo info` that try to infer
the MSRV when the workspace itself doesn't specify it. Since we are the
compiler, our only MSRV is whatever bootstrapping requires.
Guillaume Gomez