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Auto merge of #127097 - compiler-errors:async-closure-lint, r=oli-obk

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Implement simple, unstable lint to suggest turning closure-of-async-block into async-closure

We want to eventually suggest people to turn `|| async {}` to `async || {}`. This begins doing that. It's a pretty rudimentary lint, but I wanted to get something down so I wouldn't lose the code.

Tracking:
* #62290
This commit is contained in:
bors 2024-07-11 06:59:10 +00:00
commit 9b0043095a
10 changed files with 242 additions and 20 deletions
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3
compiler/rustc_lint/src/multiple_supertrait_upcastable.rs
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@ -2,7 +2,6 @@ use crate::{LateContext, LateLintPass, LintContext};
use rustc_hir as hir;
use rustc_session::{declare_lint, declare_lint_pass};
use rustc_span::sym;
declare_lint! {
/// The `multiple_supertrait_upcastable` lint detects when an object-safe trait has multiple
@ -30,7 +29,7 @@ declare_lint! {
pub MULTIPLE_SUPERTRAIT_UPCASTABLE,
Allow,
"detect when an object-safe trait has multiple supertraits",
@feature_gate = sym::multiple_supertrait_upcastable;
@feature_gate = multiple_supertrait_upcastable;
}
declare_lint_pass!(MultipleSupertraitUpcastable => [MULTIPLE_SUPERTRAIT_UPCASTABLE]);