mirror of
https://github.com/rust-lang/rust.git
synced 2024-10-30 22:12:15 +00:00
19 lines
503 B
Rust
19 lines
503 B
Rust
//@ run-pass
|
|
// Test that we are able to compile the case where both a blanket impl
|
|
// and the object type itself supply the required trait obligation.
|
|
// In this case, the blanket impl for `Foo` applies to any type,
|
|
// including `Bar`, but the object type `Bar` also implicitly supplies
|
|
// this context.
|
|
|
|
trait Foo { fn dummy(&self) { } } //~ WARN method `dummy` is never used
|
|
|
|
trait Bar: Foo { }
|
|
|
|
impl<T:?Sized> Foo for T { }
|
|
|
|
fn want_foo<B:?Sized+Foo>() { }
|
|
|
|
fn main() {
|
|
want_foo::<dyn Bar>();
|
|
}
|