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Shall void crate use this hack? #16

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vi opened this issue Apr 10, 2019 · 0 comments
Open

Shall void crate use this hack? #16

vi opened this issue Apr 10, 2019 · 0 comments

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@vi
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vi commented Apr 10, 2019

rust-lang/rust#58733

trait MyTrait {
    type Output;
}

impl<T> MyTrait for fn() -> T {
    type Output = T;
}

type Void = <fn() -> ! as MyTrait>::Output;
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