mirror of https://github.com/rust-lang/rust
19 lines
478 B
Rust
19 lines
478 B
Rust
//! Show an uninformative diagnostic that we could possibly improve in the future
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trait Trait<T> {}
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impl<T, U> Trait<T> for U {}
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fn hello() -> &'static (dyn Trait<impl Sized> + Send) {
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//~^ ERROR: type annotations needed
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if false {
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let x = hello();
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let _: &'static dyn Trait<()> = &x;
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//^ Note the extra `&`, paired with the blanket impl causing
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// `impl Sized` to never get a hidden type registered.
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}
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todo!()
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}
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fn main() {}
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