mirror of https://github.com/rust-lang/rust
27 lines
386 B
Rust
27 lines
386 B
Rust
//@ check-pass
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pub trait Foo {
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type Error: Error;
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fn foo(&self, stream: &<Self::Error as Error>::Span);
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}
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pub struct Wrapper<Inner>(Inner);
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impl<E: Error, Inner> Foo for Wrapper<Inner>
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where
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Inner: Foo<Error = E>,
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{
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type Error = E;
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fn foo(&self, stream: &<Self::Error as Error>::Span) {
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todo!()
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}
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}
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pub trait Error {
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type Span;
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}
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fn main() {}
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