rust/tests/ui/methods/receiver-equality.rs

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// Tests that we probe receivers invariantly when using path-based method lookup.
struct B<T>(T);
impl B<fn(&'static ())> {
fn method(self) {
println!("hey");
}
}
fn foo(y: B<fn(&'static ())>) {
B::<for<'a> fn(&'a ())>::method(y);
//~^ ERROR no function or associated item named `method` found
}
fn main() {}