mirror of https://github.com/rust-lang/rust.git
22 lines
470 B
Rust
22 lines
470 B
Rust
//@ reference: attributes.diagnostic.on_unimplemented.intro
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//@ reference: attributes.diagnostic.on_unimplemented.keys
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#[diagnostic::on_unimplemented(message = "my message", label = "my label", note = "my note")]
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pub trait ProviderLt {}
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pub trait ProviderExt {
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fn request<R>(&self) {
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todo!()
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}
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}
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impl<T: ?Sized + ProviderLt> ProviderExt for T {}
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struct B;
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fn main() {
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B.request();
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//~^ my message [E0599]
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//~| my label
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//~| my note
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}
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