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28 lines
578 B
Rust
28 lines
578 B
Rust
// FIXME(compiler-errors): I'm not exactly sure if this is expected to pass or not.
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// But we fixed an ICE anyways.
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#![feature(specialization)]
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#![feature(return_position_impl_trait_in_trait)]
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#![allow(incomplete_features)]
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trait Foo {
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fn bar(&self) -> impl Sized;
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}
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default impl<U> Foo for U
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where
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U: Copy,
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{
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fn bar(&self) -> U {
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//~^ ERROR method `bar` has an incompatible type for trait
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//~| ERROR method with return-position `impl Trait` in trait cannot be specialized
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*self
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}
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}
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impl Foo for i32 {}
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fn main() {
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1i32.bar();
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}
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