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cannot have divergence -> cannot diverge

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Camelid 2020-08-29 20:35:58 -07:00 • committed by GitHub
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6
library/std/src/primitive_docs.rs
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@ -194,9 +194,9 @@ mod prim_bool {}
/// # `!` and traits
///
/// When writing your own traits, `!` should have an `impl` whenever there is an obvious `impl`
/// which doesn't `panic!`. The reason is that functions returning an `impl Trait` cannot have
/// divergence, i.e., returning `!`, as their only possible code path. As an example, this code
/// doesn't compile:
/// which doesn't `panic!`. The reason is that functions returning an `impl Trait` cannot diverge,
/// i.e., returning `!`, as their only possible code path. As an example, this code doesn't
/// compile:
///
/// ```compile_fail
/// use core::ops::Add;