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Co-authored-by: Travis Cross <tc@traviscross.com>
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Tyler Mandry 2023-10-04 18:20:05 -04:00 committed by GitHub
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commit 2f5249019e
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9
compiler/rustc_lint/src/async_fn_in_trait.rs
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@ -68,10 +68,15 @@ declare_lint! {
/// }
/// ```
///
/// This still allows the use of `async fn` within impls of the trait.
/// However, it also means that the trait will never be compatible with
/// impls where the returned [`Future`] of the method does not implement
/// `Send`.
///
/// Conversely, if the trait is used only locally, if it is never used in
/// generic functions, or if it is only used in single-threaded contexts
/// that do not care whether the returned [`Future`] implements [auto traits]
/// such as [`Send`], then the lint may be suppressed.
/// that do not care whether the returned [`Future`] implements [`Send`],
/// then the lint may be suppressed.
///
/// [`Future`]: https://doc.rust-lang.org/core/future/trait.Future.html
/// [`Send`]: https://doc.rust-lang.org/core/marker/trait.Send.html