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Document map_clone known problems #498

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Vlad-Shcherbina 2018-01-17 21:40:47 +03:00 committed by GitHub
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clippy_lints/src/map_clone.rs
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@ -10,7 +10,9 @@ use utils::{is_adjusted, iter_input_pats, match_qpath, match_trait_method, match
/// **Why is this bad?** It makes the code less readable than using the
/// `.cloned()` adapter.
///
/// **Known problems:** None.
/// **Known problems:** Sometimes `.cloned()` requires stricter trait
/// bound than `.map(|e| e.clone())` (which works because of the coercion).
/// See [#498](https://github.com/rust-lang-nursery/rust-clippy/issues/498).
///
/// **Example:**
/// ```rust