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Revert anon union parsing
Revert PR #84571 and #85515, which implemented anonymous union parsing in a manner that broke the context-sensitivity for the `union` keyword and thus broke stable Rust code.
Fix #88583.
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Encode spans relative to the enclosing item
The aim of this PR is to avoid recomputing queries when code is moved without modification.
MCP at https://github.com/rust-lang/compiler-team/issues/443
This is achieved by :
1. storing the HIR owner LocalDefId information inside the span;
2. encoding and decoding spans relative to the enclosing item in the incremental on-disk cache;
3. marking a dependency to the `source_span(LocalDefId)` query when we translate a span from the short (`Span`) representation to its explicit (`SpanData`) representation.
Since all client code uses `Span`, step 3 ensures that all manipulations
of span byte positions actually create the dependency edge between
the caller and the `source_span(LocalDefId)`.
This query return the actual absolute span of the parent item.
As a consequence, any source code motion that changes the absolute byte position of a node will either:
- modify the distance to the parent's beginning, so change the relative span's hash;
- dirty `source_span`, and trigger the incremental recomputation of all code that
depends on the span's absolute byte position.
With this scheme, I believe the dependency tracking to be accurate.
For the moment, the spans are marked during lowering.
I'd rather do this during def-collection,
but the AST MutVisitor is not practical enough just yet.
The only difference is that we attach macro-expanded spans
to their expansion point instead of the macro itself.
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This reverts commit 64acb7d92135ae722dfce89f0ca9d7cf6576de66.
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Fix #88256 remove duplicated diagnostics
Fix #88256
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Address part of #34255.
Potential improvement: silence the other knock down errors in
`issue-34255-1.rs`.
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- [x] Removed `?const` and change uses of `?const`
- [x] Added `~const` to the AST. It is gated behind const_trait_impl.
- [x] Validate `~const` in ast_validation.
- [ ] Add enum `BoundConstness` to the HIR. (With variants `NotConst` and
`ConstIfConst` allowing future extensions)
- [ ] Adjust trait selection and pre-existing code to use `BoundConstness`.
- [ ] Optional steps (*for this PR, obviously*)
- [ ] Fix #88155
- [ ] Do something with constness bounds in chalk
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same search
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Document private items for rustfmt
This is possible now that https://github.com/rust-lang/rust/pull/73936 has been merged.
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This is possible now that rustdoc allows passing
`--document-private-items` more than once.
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rfc3052 followup: Remove authors field from Cargo manifests
Since RFC 3052 soft deprecated the authors field, hiding it from
crates.io, docs.rs, and making Cargo not add it by default, and it is
not generally up to date/useful information for contributors, we may as well
remove it from crates in this repo.
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Since RFC 3052 soft deprecated the authors field anyway, hiding it from
crates.io, docs.rs, and making Cargo not add it by default, and it is
not generally up to date/useful information, we should remove it from
crates in this repo.
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The recursion_limit attribute avoids the following error:
```
error[E0275]: overflow evaluating the requirement `std::ptr::Unique<rustc_ast::Pat>: std::marker::Send`
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= help: consider adding a `#![recursion_limit="256"]` attribute to your crate (`rustfmt_nightly`)
```
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r=Mark-Simulacrum
rustfmt: load nested out-of-line mods correctly
This should address https://github.com/rust-lang/rustfmt/issues/4874
r? `@Mark-Simulacrum`
Decided to make the change directly in tree here for expediency/to minimize any potential backporting issues, and because there's some subtree sync items I need to get resolved before pulling from r-l/rustfmt
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Spaces
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position.
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This avoids the following warning:
```
warning: trailing semicolon in macro used in expression position
--> /home/joshua/.local/lib/cargo/registry/src/github.com-1ecc6299db9ec823/log-0.4.11/src/macros.rs:152:45
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147 | / macro_rules! debug {
148 | | (target: $target:expr, $($arg:tt)+) => (
149 | | log!(target: $target, $crate::Level::Debug, $($arg)+);
150 | | );
151 | | ($($arg:tt)+) => (
152 | | log!($crate::Level::Debug, $($arg)+);
| | ^
153 | | )
154 | | }
| |_- in this expansion of `debug!`
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::: src/tools/rustfmt/src/modules/visitor.rs:36:23
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36 | Err(e) => debug!("{}", e),
| --------------- in this macro invocation
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= note: requested on the command line with `-W semicolon-in-expressions-from-macros`
= warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
= note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
```
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git-subtree-dir: src/tools/rustfmt
git-subtree-mainline: e659b6de9170c055b6f2d16e2679b22d67297b13
git-subtree-split: 7872306edf2e11a69aaffb9434088fd66b46a863
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Should hopefully fix #78341 and #78340.
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Changes:
- preparation for potential rustfmt 1.4.19 (#4283)
- chore: backport 8157a3f0afe978d3e953420577f8344db7e905bf
- deps: bump rustc-ap to v669
- deps: bump rustc-ap-* to v668
- deps: bump rustc-ap* to v666
- Use correct span for match arms with the leading pipe and attributes (#3975)
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