mirror of https://github.com/rust-lang/rust
23 lines
381 B
Rust
23 lines
381 B
Rust
//@ check-pass
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#![feature(impl_trait_in_assoc_type)]
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trait UnwrapItemsExt {
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type Iter;
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fn unwrap_items(self) -> Self::Iter;
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}
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impl<I, T, E> UnwrapItemsExt for I
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where
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I: Iterator<Item = Result<T, E>>,
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E: std::fmt::Debug,
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{
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type Iter = impl Iterator<Item = T>;
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fn unwrap_items(self) -> Self::Iter {
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self.map(|x| x.unwrap())
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}
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}
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fn main() {}
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