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1627 Commits

Author SHA1 Message Date
Ross Smyth
1709dd59bd Add basic rustfmt implementation & test 2024-03-06 00:51:45 -05:00
David Wood
124808b582 errors: share SilentEmitter between rustc and rustfmt 
Signed-off-by: David Wood <david@davidtw.co>
 2024-03-05 10:14:36 +00:00
Guillaume Gomez
e504c64a41 Rollup merge of #121035 - compiler-errors:rustfmt-asyncness, r=calebcartwright 
Format `async` trait bounds in rustfmt

r? `@ytmimi` or `@calebcartwright`

This PR opts to do formatting in the rust-lang/rust tree because otherwise we'd have to wait until a full sync, and rustfmt is currently totally removing the `async` keyword.

cc https://github.com/rust-lang/rustfmt/issues/6070
 2024-02-14 15:41:27 +01:00
Michael Goulet
bed388348b Format async bounds in rustfmt 2024-02-13 16:05:41 +00:00
Frank King
16250ea7ba Add rustfmt test from #117942 2024-02-12 12:47:30 +08:00
Michael Goulet
b92320c39b Check that a token can begin a nonterminal kind before parsing it as a macro arg in rustfmt 2024-01-22 01:49:33 +00:00
Eric Huss
b9ad02421a Remove edition umbrella features. 2023-12-10 13:03:28 -08:00
Caleb Cartwright
04bd7201a9 Merge commit '81fe905ca83cffe84322f27ca43950b617861ff7' into rustfmt-sync 2023-10-22 20:21:44 -05:00
Oli Scherer
7a20da333b Rename lots of files that had generator in their name 2023-10-20 21:14:02 +00:00
Oli Scherer
1b9dd4b4ad s/generator/coroutine/ 2023-10-20 21:14:01 +00:00
Frank King
af6a6a3c2c Parse unnamed fields and anonymous structs or unions 
Anonymous structs or unions are only allowed in struct field
definitions.

Co-authored-by: carbotaniuman <41451839+carbotaniuman@users.noreply.github.com>
 2023-08-24 11:17:54 +08:00
Caleb Cartwright
78331eefaf Merge commit 'dca1cf90ad6b8e45afbed2061803befbb2d159e9' into sync-rustfmt 2023-07-01 02:49:12 -05:00
Caleb Cartwright
ed3e96e3d1 Merge commit '3f7c366fc0464e01ddcaefbd70647cb3da4202be' into rustfmt-sync 2023-06-19 23:13:56 -05:00
Michael Goulet
8ed5d5de3d Rustfmt support for negative bounds, test 2023-05-02 22:36:25 +00:00
yukang
9d20134a78 remove rustfmt testcase for type ascription 2023-05-01 16:15:17 +08:00
yukang
a74d2d7440 fix tests 2023-05-01 16:15:17 +08:00
clubby789
a5ba6e025f Remove uses of box_syntax in rustc and tools 2023-03-12 13:19:46 +00:00
Caleb Cartwright
094b7f599c Merge commit '1d8491b120223272b13451fc81265aa64f7f4d5b' into sync-from-rustfmt 2023-01-24 14:16:03 -06:00
Albert Larsan
8c8aa3873f Change src/test to tests in source files, fix tidy and tests 2023-01-11 09:32:13 +00:00
Esteban Küber
664c60a18e Detect closures assigned to binding in block 
Fix #58497.
 2023-01-05 21:29:36 +00:00
Jack Huey
748b031056 Stabilize GATs 2022-08-30 23:06:24 -04:00
Joshua Nelson
7852b8808b Stabilize #![feature(label_break_value)] 
# Stabilization proposal

The feature was implemented in https://github.com/rust-lang/rust/pull/50045 by est31 and has been in nightly since 2018-05-16 (over 4 years now).
There are [no open issues][issue-label] other than the tracking issue. There is a strong consensus that `break` is the right keyword and we should not use `return`.

There have been several concerns raised about this feature on the tracking issue (other than the one about tests, which has been fixed, and an interaction with try blocks, which has been fixed).
1. nrc's original comment about cost-benefit analysis: https://github.com/rust-lang/rust/issues/48594#issuecomment-422235234
2. joshtriplett's comments about seeing use cases: https://github.com/rust-lang/rust/issues/48594#issuecomment-422281176
3. withoutboats's comments that Rust does not need more control flow constructs: https://github.com/rust-lang/rust/issues/48594#issuecomment-450050630

Many different examples of code that's simpler using this feature have been provided:
- A lexer by rpjohnst which must repeat code without label-break-value: https://github.com/rust-lang/rust/issues/48594#issuecomment-422502014
- A snippet by SergioBenitez which avoids using a new function and adding several new return points to a function: https://github.com/rust-lang/rust/issues/48594#issuecomment-427628251. This particular case would also work if `try` blocks were stabilized (at the cost of making the code harder to optimize).
- Several examples by JohnBSmith: https://github.com/rust-lang/rust/issues/48594#issuecomment-434651395
- Several examples by Centril: https://github.com/rust-lang/rust/issues/48594#issuecomment-440154733
- An example by petrochenkov where this is used in the compiler itself to avoid duplicating error checking code: https://github.com/rust-lang/rust/issues/48594#issuecomment-443557569
- Amanieu recently provided another example related to complex conditions, where try blocks would not have helped: https://github.com/rust-lang/rust/issues/48594#issuecomment-1184213006

Additionally, petrochenkov notes that this is strictly more powerful than labelled loops due to macros which accidentally exit a loop instead of being consumed by the macro matchers: https://github.com/rust-lang/rust/issues/48594#issuecomment-450246249

nrc later resolved their concern, mostly because of the aforementioned macro problems.
joshtriplett suggested that macros could be able to generate IR directly
(https://github.com/rust-lang/rust/issues/48594#issuecomment-451685983) but there are no open RFCs,
and the design space seems rather speculative.

joshtriplett later resolved his concerns, due to a symmetry between this feature and existing labelled break: https://github.com/rust-lang/rust/issues/48594#issuecomment-632960804

withoutboats has regrettably left the language team.

joshtriplett later posted that the lang team would consider starting an FCP given a stabilization report: https://github.com/rust-lang/rust/issues/48594#issuecomment-1111269353

[issue-label]: https://github.com/rust-lang/rust/issues?q=is%3Aissue+is%3Aopen+label%3AF-label_break_value+

 ## Report

+ Feature gate:
    - d695a497bb/src/test/ui/feature-gates/feature-gate-label_break_value.rs
+ Diagnostics:
    - 6b2d3d5f3c/compiler/rustc_parse/src/parser/diagnostics.rs (L2629)
    - f65bf0b2bb/compiler/rustc_resolve/src/diagnostics.rs (L749)
    - f65bf0b2bb/compiler/rustc_resolve/src/diagnostics.rs (L1001)
    - 111df9e6ed/compiler/rustc_passes/src/loops.rs (L254)
    - d695a497bb/compiler/rustc_parse/src/parser/expr.rs (L2079)
    - d695a497bb/compiler/rustc_parse/src/parser/expr.rs (L1569)
+ Tests:
    - https://github.com/rust-lang/rust/blob/master/src/test/ui/label/label_break_value_continue.rs
    - https://github.com/rust-lang/rust/blob/master/src/test/ui/label/label_break_value_unlabeled_break.rs
    - https://github.com/rust-lang/rust/blob/master/src/test/ui/label/label_break_value_illegal_uses.rs
    - https://github.com/rust-lang/rust/blob/master/src/test/ui/lint/unused_labels.rs
    - https://github.com/rust-lang/rust/blob/master/src/test/ui/run-pass/for-loop-while/label_break_value.rs

 ## Interactions with other features

Labels follow the hygiene of local variables.

label-break-value is permitted within `try` blocks:
```rust
let _: Result<(), ()> = try {
    'foo: {
        Err(())?;
        break 'foo;
    }
};
```

label-break-value is disallowed within closures, generators, and async blocks:
```rust
'a: {
    || break 'a
    //~^ ERROR use of unreachable label `'a`
    //~| ERROR `break` inside of a closure
}
```

label-break-value is disallowed on [_BlockExpression_]; it can only occur as a [_LoopExpression_]:
```rust
fn labeled_match() {
    match false 'b: { //~ ERROR block label not supported here
        _ => {}
    }
}

macro_rules! m {
    ($b:block) => {
        'lab: $b; //~ ERROR cannot use a `block` macro fragment here
        unsafe $b; //~ ERROR cannot use a `block` macro fragment here
        |x: u8| -> () $b; //~ ERROR cannot use a `block` macro fragment here
    }
}

fn foo() {
    m!({});
}
```

[_BlockExpression_]: https://doc.rust-lang.org/nightly/reference/expressions/block-expr.html
[_LoopExpression_]: https://doc.rust-lang.org/nightly/reference/expressions/loop-expr.html
 2022-08-23 21:14:12 -05:00
Maybe Waffle
f026688c2a Add rustfmt test for formatting for<> before closures 2022-07-12 21:00:13 +04:00
Caleb Cartwright
ac595dd57a Merge commit 'c4416f20dcaec5d93077f72470e83e150fb923b1' into sync-rustfmt 2022-06-22 22:14:32 -05:00
Caleb Cartwright
d03a547cad Merge commit '7b73b60faca71d01d900e49831fcb84553e93019' into sync-rustfmt 2022-06-12 22:03:05 -05:00
Jacob Pratt
241a6f6930 Remove crate visibility modifier in libs, tests 2022-05-21 00:32:47 -04:00
ydah
86940d2652 Fix typo 
This PR is fixes typo "avaiable" to "available".
 2022-05-20 10:39:10 +09:00
Caleb Cartwright
8211d64c71 Merge commit '5ff7b632a95bac6955611d85040859128902c580' into sync-rustfmt-subtree 2022-03-29 23:17:30 -05:00
Caleb Cartwright
6db6bafc61 Merge commit '4a053f206fd6799a25823c307f7d7f9d897be118' into sync-rustfmt-subtree 2021-12-29 20:49:39 -06:00
Caleb Cartwright
0167c5303f Merge commit '8da837185714cefbb261e93e9846afb11c1dc60e' into sync-rustfmt-subtree 2021-12-02 21:35:30 -06:00
Caleb Cartwright
f99e3582bd Merge commit 'ea199bacef07213dbe008841b89c450e3bf0c638' into rustfmt-sync 2021-11-07 20:37:34 -06:00
Caleb Cartwright
2b41b6d022 Merge commit 'efa8f5521d3813cc897ba29ea0ef98c7aef66bb6' into rustfmt-subtree 2021-10-20 00:11:59 -05:00
Cameron Steffen
a603756cc5 Temporary fix rustfmt for let-else 2021-08-30 20:18:41 -05:00
Deadbeef
20ddab3def Fix rustfmt test 2021-08-27 11:53:03 +00:00
Deadbeef
076916fe94 Introduce ~const 
- [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
 2021-08-27 05:07:37 +00:00
Frank Steffahn
9bc0dbeb64 Fix typos “an”→“a” and a few different ones that appeared in the same search 2021-08-22 18:15:49 +02:00
Caleb Cartwright
e4b8714c09 Merge commit '4236289b75ee55c78538c749512cdbeea5e1c332' into update-rustfmt 2021-07-25 22:57:19 -05:00
Caleb Cartwright
2a3635d5d1 tests: remove snippets with inner attrs on non-block expressions 2021-05-04 18:38:22 -05:00
ChinYing-Li
84ff0013c2 Add the case in duplicate issue (#4806) to the idempotent tests 2021-04-21 21:30:42 -05:00
ChinYing-Li
dac2423f3f Recognize when a block comment has been ended inside a string literal (#4312) 2021-04-21 21:30:42 -05:00
Joseph Birr-Pixton
58157bb4b7 Add some basic tests for chain_width use 2021-04-21 21:27:50 -05:00
Caleb Cartwright
a168d92f9a tests: augment heuristics tests 2021-04-21 21:27:50 -05:00
Caleb Cartwright
1bcc1f8df5 refactor: apply heuristic config changes in lib 2021-04-21 21:27:50 -05:00
David Bar-On
432e09e89f Add the use of rewrite_assign_rhs_with_comments to 1.x 2021-02-17 20:47:20 -06:00
David Bar-On
4b0ed96f2e Fix for issue 4603 about extra macro body indentation (third version) 2021-02-17 20:19:27 -06:00
Caleb Cartwright
d80a42fdd8 tests: add case for issue 4675 2021-01-28 22:01:50 -06:00
Caleb Cartwright
c13d2452c0 chore: backport some empty block check fixes 2021-01-27 20:58:42 -06:00
vallentin
1e2b0b7c72 Added 4646 test case 2021-01-27 20:58:42 -06:00
Michael Morgan
384ba68d64 Add imports_granularity="Item". 
This option splits all imports into their own `use` statement.
 2021-01-27 20:58:42 -06:00
Sean Klein
5e14f760c5 fix: Avoid incorrect global 'cfg_if' Symbol interning 
Fixes #4656
 2021-01-27 19:26:58 -06:00