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Or macro_rules hygiene, or mixed site hygiene. In other words, hygiene for variables and labels but not items.
The realization that made me implement this was that while "full" hygiene (aka. def site hygiene) is really hard for us to implement, and will likely involve intrusive changes and performance losses, since every `Name` will have to carry hygiene, mixed site hygiene is very local: it applies only to bodies, and we very well can save it in a side map with minor losses.
This fixes one diagnostic in r-a that was about `izip!()` using hygiene (yay!) but it introduces a huge number of others, because of #18262. Up until now this issue wasn't a major problem because it only affected few cases, but with hygiene identifiers referred by macros like that are not resolved at all. The next commit will fix that.
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fix: Nail destructuring assignment once and for all
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a macro
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internal: Merge separate inlay hints targeting same range
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Switch CI from bors to merge queues
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feat: resolve range patterns to their structs
Closes #18367
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tests: Add `lsif_contains_generated_constant` test
Closes https://github.com/rust-lang/rust-analyzer/pull/18309
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feat: render docs from aliased type when type has no docs
Trying to close #18344
- [x] ~Find the docs by traversing upwards if the type itself has none but aliasing for another type that might have.~
- [x] Show docs from aliased type.
- [x] Showing description that we are displaying documentation for different definition in hover box.
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fix: Fix incorrect parsing of use bounds
Fixes https://github.com/rust-lang/rust-analyzer/issues/18357
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Also lower them a bit more
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Fix status bar message not being marked markdown
Closes https://github.com/rust-lang/rust-analyzer/pull/18323
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feat: goto definition on range operators
Closes #18342
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minor: sync from downstream
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to respective struct
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r=compiler-errors
make unsupported_calling_conventions a hard error
This has been a future-compat lint (not shown in dependencies) since Rust 1.55, released 3 years ago. Hopefully that was enough time so this can be made a hard error now. Given that long timeframe, I think it's justified to skip the "show in dependencies" stage. There were [not many crates hitting this](https://github.com/rust-lang/rust/pull/86231#issuecomment-866300943) even when the lint was originally added.
This should get cratered, and I assume then it needs a t-compiler FCP. (t-compiler because this looks entirely like an implementation oversight -- for the vast majority of ABIs, we already have a hard error, but some were initially missed, and we are finally fixing that.)
Fixes https://github.com/rust-lang/rust/pull/87678
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Dont consider predicates that may hold as impossible in `is_impossible_associated_item`
Use infer vars to account for ambiguities when considering if methods are impossible to instantiate for a given self type. Also while we're at it, let's use the new trait solver instead of `evaluate` since this is used in rustdoc.
r? lcnr
Fixes #131839
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(ci) Update macOS Xcode to 15
This updates the macOS builders to Xcode 15. The aarch64 images will be removing Xcode 14 and 16 very soon (https://github.com/actions/runner-images/issues/10703), so we will need to make the switch to continue operating. The linked issue also documents GitHub's new policy for how they will be updating Xcode in the future. Also worth being aware of is the future plans for x86 runners documented in https://github.com/actions/runner-images/issues/9255 and https://github.com/actions/runner-images/issues/10686, which will impact our future upgrade behaviors.
I decided to also update the Xcode in the x86_64 runners, even though they are not being removed. It felt better to me to have all macOS runners on the same (major) version of Xcode. However, note that the x86_64 runners do not have the latest version of 15 (15.4), so I left them at 15.2 (which is currently the default Xcode of the runner).
Xcode 15 was previously causing problems (see #121058) which seem to be resolved now. `@bjorn3` fixed the `invalid r_symbolnum` issue with cranelift. The issue with clang failing to link seems to be fixed, possibly by the update of the pre-built LLVM from 14 to llvm 15 in https://github.com/rust-lang/rust/pull/124850, or an update in our source version of LLVM. I have run some try builds and at least LLVM seems to build (I did not run any tests).
Closes #121058
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For reasons I don't understand, lldb in Xcode 15 no longer prints objects as:
(long) $0 = 19
instead, it is printing them as:
(long) 19
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feat: better completions for extern blcoks
This PR refactors `add_keywords` (making it much clearer!) and enhances completion for `extern` blocks.
It is recommended to reviewing the changes in order of the commits:
- The first commit (f3c4dde0a4917a2bac98605cc045eecfb4d69872) doesn’t change any logic but refactors parts of the `add_keywords` function and adds detailed comments.
- The second commit (5dcc1ab649bf8a49cadf006d620871b12f093a2f) improves completion for `extern` kw and extern blocks.
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Rollup of 7 pull requests
Successful merges:
- #130350 (stabilize Strict Provenance and Exposed Provenance APIs)
- #131737 (linkchecker: add a reminder on broken links to add new/renamed pages to `SUMMARY.md` for mdBooks)
- #131991 (test: Add test for trait in FQS cast, issue #98565)
- #131997 (Make `rustc_abi` compile on stable again)
- #131999 (Improve test coverage for `unit_bindings` lint)
- #132001 (fix coherence error for very large tuples™)
- #132003 (update ABI compatibility docs for new option-like rules)
r? `@ghost`
`@rustbot` modify labels: rollup
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update ABI compatibility docs for new option-like rules
Documents the rules decided [here](https://github.com/rust-lang/rust/pull/130628#issuecomment-2402761599) for our ABI compatibility rules.
Long-term this should be moved to the reference, but for now this is what we got.
Cc `@rust-lang/lang` `@rust-lang/opsem`
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fix coherence error for very large tuples™
see https://rust-lang.zulipchat.com/#narrow/channel/364551-t-types.2Ftrait-system-refactor/topic/diesel.20error for an in-depth explanation of this issue. We once again specialize `NormalizesTo` goals to avoid the impact of erasing their expected term.
fixes #131969
r? `@compiler-errors`
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Improve test coverage for `unit_bindings` lint
Follow-up to #112380, apparently at the time I didn't add much of any test coverage outside of just "generally works as intended on the test suites and in the crater run".
r? compiler
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Make `rustc_abi` compile on stable again
https://github.com/rust-lang/rust/pull/131473 accidentally broke this
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test: Add test for trait in FQS cast, issue #98565
Closes #98565 by adding a test to check for diagnostics when the built-in type `str` is used in a cast where a trait is expected.
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linkchecker: add a reminder on broken links to add new/renamed pages to `SUMMARY.md` for mdBooks
I spent an embarrassingly long amount of time trying to figure out why CI was failing for a PR adding new platform support docs. In turns out it's because the PR author didn't register the new page in `SUMMARY.md`. I completely forgot about it too, and was reading linkchecker source because I thought it was a bug in linkchecker.
So this PR adds a note to modify `SUMMARY.md` when adding new pages in a mdBook.
E.g.
```
# Adding a new `meow` target but forgor to register the page in `SUMMARY.md`
rustc\platform-support.html:183: broken link - `rustc\platform-support\meow.html`
rustc\print.html:9730: broken link - `rustc\platform-support\meow.html`
checked links in: 19.1s
number of HTML files scanned: 43588
number of HTML redirects found: 13735
number of links checked: 3145951
number of links ignored due to external: 156244
number of links ignored due to exceptions: 9
number of intra doc links ignored: 8
errors found: 2
NOTE: if you are adding or renaming a markdown file in a mdBook, don't forget to register the page in SUMMARY.md
found some broken links
```
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stabilize Strict Provenance and Exposed Provenance APIs
Given that [RFC 3559](https://rust-lang.github.io/rfcs/3559-rust-has-provenance.html) has been accepted, t-lang has approved the concept of provenance to exist in the language. So I think it's time that we stabilize the strict provenance and exposed provenance APIs, and discuss provenance explicitly in the docs:
```rust
// core::ptr
pub const fn without_provenance<T>(addr: usize) -> *const T;
pub const fn dangling<T>() -> *const T;
pub const fn without_provenance_mut<T>(addr: usize) -> *mut T;
pub const fn dangling_mut<T>() -> *mut T;
pub fn with_exposed_provenance<T>(addr: usize) -> *const T;
pub fn with_exposed_provenance_mut<T>(addr: usize) -> *mut T;
impl<T: ?Sized> *const T {
pub fn addr(self) -> usize;
pub fn expose_provenance(self) -> usize;
pub fn with_addr(self, addr: usize) -> Self;
pub fn map_addr(self, f: impl FnOnce(usize) -> usize) -> Self;
}
impl<T: ?Sized> *mut T {
pub fn addr(self) -> usize;
pub fn expose_provenance(self) -> usize;
pub fn with_addr(self, addr: usize) -> Self;
pub fn map_addr(self, f: impl FnOnce(usize) -> usize) -> Self;
}
impl<T: ?Sized> NonNull<T> {
pub fn addr(self) -> NonZero<usize>;
pub fn with_addr(self, addr: NonZero<usize>) -> Self;
pub fn map_addr(self, f: impl FnOnce(NonZero<usize>) -> NonZero<usize>) -> Self;
}
```
I also did a pass over the docs to adjust them, because this is no longer an "experiment". The `ptr` docs now discuss the concept of provenance in general, and then they go into the two families of APIs for dealing with provenance: Strict Provenance and Exposed Provenance. I removed the discussion of how pointers also have an associated "address space" -- that is not actually tracked in the pointer value, it is tracked in the type, so IMO it just distracts from the core point of provenance. I also adjusted the docs for `with_exposed_provenance` to make it clear that we cannot guarantee much about this function, it's all best-effort.
There are two unstable lints associated with the strict_provenance feature gate; I moved them to a new [strict_provenance_lints](https://github.com/rust-lang/rust/issues/130351) feature since I didn't want this PR to have an even bigger FCP. ;)
`@rust-lang/opsem` Would be great to get some feedback on the docs here. :)
Nominating for `@rust-lang/libs-api.`
Part of https://github.com/rust-lang/rust/issues/95228.
[FCP comment](https://github.com/rust-lang/rust/pull/130350#issuecomment-2395114536)
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definition
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fix: Fix token downmapping failing for include! inputs
Supercedes https://github.com/rust-lang/rust-analyzer/pull/18325
Fixes https://github.com/rust-lang/rust-analyzer/pull/18325
Fixes https://github.com/rust-lang/rust-analyzer/issues/18313
Fixes https://github.com/rust-lang/rust-analyzer/issues/18314
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