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Remove unused variables in compile_submatch. #7997

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Remove unused variables in compile_submatch. #7997

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omasanori
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Just an minor cleanup.

Just an minor cleanup.

Signed-off-by: OGINO Masanori <masanori.ogino@gmail.com>
bors added a commit that referenced this pull request Jul 24, 2013
@bors bors closed this Jul 24, 2013
flip1995 pushed a commit to flip1995/rust that referenced this pull request Nov 23, 2021
Fixes shadow_same's false positive for rust-lang#7915

Fix shadow_same's false positive for async function's params(Fixes rust-lang#7915):

Example Code:
```rust
#![deny(clippy::shadow_same)]

pub async fn foo(_a: i32) {
}
```
Output:
```
error: `_a` is shadowed by itself in `_a
```

Hir:
```rust
pub async fn foo(_a: i32)
 ->
     /*impl Trait*/ #[lang = "from_generator"](move |mut _task_context|
                                                   {
                                                       let _a = _a;
                                                       { let _t = { }; _t }
                                                   })
```

Skip checking async function's params.

changelog: Fix shadow_same's false positive for async function's params
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2 participants