mirror of https://github.com/rust-lang/rust
32 lines
535 B
Rust
32 lines
535 B
Rust
//@ check-pass
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pub trait MyTrait<'a> {
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type Output: 'a;
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fn gimme_value(&self) -> Self::Output;
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}
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pub struct MyStruct;
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impl<'a> MyTrait<'a> for MyStruct {
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type Output = &'a usize;
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fn gimme_value(&self) -> Self::Output {
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unimplemented!()
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}
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}
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fn meow<T, F>(t: T, f: F)
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where
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T: for<'any> MyTrait<'any>,
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F: for<'any2> Fn(<T as MyTrait<'any2>>::Output),
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{
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let v = t.gimme_value();
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f(v);
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}
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fn main() {
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let struc = MyStruct;
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meow(struc, |foo| {
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println!("{:?}", foo);
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})
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}
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