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This also fully stabilizes two-phase borrows on all editions
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This commit introduces an `ArgSource` enum that is lowered into the HIR
so that diagnostics can correctly refer to the argument pattern's
original name rather than the generated pattern.
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This avoids issues with `impl_trait_in_bindings` as the type from the
argument is normally used as the let binding, but `impl Trait` is
unstable in binding position.
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This commit adds an `AsyncArgument` struct to the AST that contains the
generated argument and statement that will be used in HIR lowering, name
resolution and def collection.
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Remove mutability from `Def::Static`
Querify `TyCtxt::is_static`.
Use `Mutability` instead of bool in foreign statics in AST/HIR.
cc https://github.com/rust-lang/rust/pull/60110
r? @eddyb
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Remove assumption from recovery code
Fix #60115.
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This will be used to keep track of the origin of a local in the AST. In
particular, it will be used by `async fn` lowering for the locals in
`let <pat>: <ty> = __arg0;` statements.
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Fix fn front matter parsing ICE from invalid code.
Fixes #60075.
This PR fixes an "unreachable code" ICE that results from parsing
invalid code where the compiler is expecting the next trait item
declaration in the middle of the previous trait item due to extra
closing braces.
r? @estebank (thanks for the minimized test case)
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Simplify doc comment lexing
is_doc_comment function checks the first four chars, but this is
redundant, `doc_comment` local var has the same info.
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This commit fixes an "unreachable code" ICE that results from parsing
invalid code where the compiler is expecting the next trait item
declaration in the middle of the previous trait item due to extra
closing braces.
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whitelist RTM x86 target cpu feature
This PR adds support for intels restricted transactional memory cpu feature. I mostly copied what was done for the [movbe](https://github.com/rust-lang/rust/pull/57999) feature.
https://github.com/rust-lang-nursery/stdsimd/issues/718
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Rename files about error codes
fixes #60017
This PR will be failed in tidy.
<details>
<summary>The log is here:</summary>
```
tidy check
tidy error: duplicate error code: 411
tidy error: Documents\GitHub\rust\src\librustc_resolve\diagnostics.rs:83: __diagnostic_used!(E0411);
tidy error: Documents\GitHub\rust\src\librustc_resolve\diagnostics.rs:84: err.code(DiagnosticId::Error("E0411".to_owned()));
tidy error: duplicate error code: 424
tidy error: Documents\GitHub\rust\src\librustc_resolve\diagnostics.rs:90: debug!("smart_resolve_path_fragment: E0424, source={:?}", source);
tidy error: Documents\GitHub\rust\src\librustc_resolve\diagnostics.rs:92: __diagnostic_used!(E0424);
tidy error: Documents\GitHub\rust\src\librustc_resolve\diagnostics.rs:93: err.code(DiagnosticId::Error("E0424".to_owned()));
some tidy checks failed
```
</details>
I'd like to fix this but I don't know what to do.
I will work on later. Please let me know if you have any solutions.
r? @petrochenkov
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Small comments fix
- Fix comments around test harness generation
- Promote regular comments to rustdoc comments
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Emit ansi color codes in the `rendered` field of json diagnostics
cc @ljedrz
Implemented for https://github.com/rust-lang/rust/pull/56595#issuecomment-447645115 (x.py clippy)
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Increase `Span` from 4 bytes to 8 bytes.
This increases the size of some important types, such as `ast::Expr` and
`mir::Statement`. However, it drastically reduces how much the interner
is used, and the fields are more natural sizes that don't require bit
operations to extract.
As a result, instruction counts drop across a range of workloads, by as
much as 10% for `script-servo` incremental builds.
Peak memory usage goes up a little for some cases, but down by more for
some other cases -- as much as 18% for non-incremental builds of
`packed-simd`.
The commit also:
- removes the `repr(packed)`, because it has negligible effect, but can
cause undefined behaviour;
- replaces explicit impls of common traits (`Copy`, `PartialEq`, etc.)
with derived ones.
r? @petrochenkov
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Make duplicate matcher bindings a hard error
r? @Centril
Closes #57742
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remove lookup_char_pos_adj
It is now exactly equivalent to lookup_char_pos.
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Recover from missing semicolon based on the found token
When encountering one of a few keywords when a semicolon was
expected, suggest the semicolon and recover:
```
error: expected one of `.`, `;`, `?`, or an operator, found `let`
--> $DIR/recover-missing-semi.rs:4:5
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LL | let _: usize = ()
| - help: missing semicolon here
LL |
LL | let _ = 3;
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error[E0308]: mismatched types
--> $DIR/recover-missing-semi.rs:2:20
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LL | let _: usize = ()
| ^^ expected usize, found ()
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= note: expected type `usize`
found type `()`
```
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Tweak unstable diagnostic output
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Error when using `catch` after `try`
Part of https://github.com/rust-lang/rust/issues/31436
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Fix lifetime on LocalInternedString::get function
cc @eddyb @nnethercote
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When encountering one of a few keywords when a semicolon was
expected, suggest the semicolon and recover:
```
error: expected one of `.`, `;`, `?`, or an operator, found `let`
--> $DIR/recover-missing-semi.rs:4:5
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LL | let _: usize = ()
| - help: missing semicolon here
LL |
LL | let _ = 3;
| ^^^
error[E0308]: mismatched types
--> $DIR/recover-missing-semi.rs:2:20
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LL | let _: usize = ()
| ^^ expected usize, found ()
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= note: expected type `usize`
found type `()`
```
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It is now exactly equivalent to lookup_char_pos.
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