rust/tests/ui/generic-associated-types/const-generics-gat-in-trait...

21 lines
417 B
Rust

//@ run-pass
// This test unsures that with_opt_const_param returns the
// def_id of the N param in the Foo::Assoc GAT.
trait Foo {
type Assoc<const N: usize>;
fn foo<const N: usize>(&self) -> Self::Assoc<N>;
}
impl Foo for () {
type Assoc<const N: usize> = [(); N];
fn foo<const N: usize>(&self) -> Self::Assoc<N> {
[(); N]
}
}
fn main() {
assert_eq!(().foo::<10>(), [(); 10]);
}