mirror of https://github.com/rust-lang/rust
30 lines
442 B
Rust
30 lines
442 B
Rust
//@ check-pass
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struct Foo<'a> {
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foo: &'a mut usize,
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}
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trait Bar<'a> {
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type FooRef<'b>
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where
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'a: 'b;
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fn uwu(foo: Foo<'a>, f: impl for<'b> FnMut(Self::FooRef<'b>));
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}
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impl<'a> Bar<'a> for () {
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type FooRef<'b>
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=
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&'b Foo<'a>
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where
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'a : 'b,
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;
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fn uwu(
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foo: Foo<'a>,
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mut f: impl for<'b> FnMut(&'b Foo<'a>), //relevant part
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) {
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f(&foo);
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}
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}
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fn main() {}
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