mirror of https://github.com/rust-lang/rust
39 lines
560 B
Rust
39 lines
560 B
Rust
//@ build-pass
|
|
|
|
#![allow(incomplete_features)]
|
|
#![feature(generic_const_exprs)]
|
|
|
|
pub trait Foo {
|
|
fn foo(&self);
|
|
}
|
|
|
|
pub struct FooImpl<const N: usize>;
|
|
impl<const N: usize> Foo for FooImpl<N> {
|
|
fn foo(&self) {}
|
|
}
|
|
|
|
pub trait Bar: 'static {
|
|
type Foo: Foo;
|
|
fn get() -> &'static Self::Foo;
|
|
}
|
|
|
|
struct BarImpl;
|
|
impl Bar for BarImpl {
|
|
type Foo = FooImpl<
|
|
{
|
|
{ 4 }
|
|
},
|
|
>;
|
|
fn get() -> &'static Self::Foo {
|
|
&FooImpl
|
|
}
|
|
}
|
|
|
|
pub fn boom<B: Bar>() {
|
|
B::get().foo();
|
|
}
|
|
|
|
fn main() {
|
|
boom::<BarImpl>();
|
|
}
|