rust/tests/ui/on-unimplemented/parent-label.rs

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// Test scope annotations from `parent_label` parameter
#![feature(rustc_attrs)]
#[rustc_on_unimplemented(parent_label = "in this scope")]
trait Trait {}
struct Foo;
fn f<T: Trait>(x: T) {}
fn main() {
let x = || {
f(Foo {}); //~ ERROR the trait bound `Foo: Trait` is not satisfied
let y = || {
f(Foo {}); //~ ERROR the trait bound `Foo: Trait` is not satisfied
};
};
{
{
f(Foo {}); //~ ERROR the trait bound `Foo: Trait` is not satisfied
}
}
f(Foo {}); //~ ERROR the trait bound `Foo: Trait` is not satisfied
}