mirror of https://github.com/rust-lang/rust
20 lines
406 B
Rust
20 lines
406 B
Rust
//@ run-pass
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// Previously the closure's argument would be inferred to
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// <S as ITrait<'a>>::Item, causing an error in MIR type
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// checking
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trait ITrait<'a> {type Item;}
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struct S {}
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impl<'a> ITrait<'a> for S { type Item = &'a mut usize; }
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fn m<T, I, F>(_: F)
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where I: for<'a> ITrait<'a>,
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F: for<'a> FnMut(<I as ITrait<'a>>::Item) { }
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fn main() {
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m::<usize,S,_>(|x| { *x += 1; });
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}
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