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19 lines
338 B
Rust
19 lines
338 B
Rust
#![feature(type_alias_impl_trait)]
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pub trait Bar {
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type E: Copy;
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fn foo<T>() -> Self::E;
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}
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impl<S> Bar for S {
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type E = impl Copy;
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fn foo<T>() -> Self::E {
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|| ()
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//~^ ERROR type parameter `T` is part of concrete type but not used in parameter list for the `impl Trait` type alias
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}
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}
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fn main() {}
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