mirror of
https://github.com/rust-lang/rust.git
synced 2024-11-24 07:44:10 +00:00
27 lines
465 B
Rust
27 lines
465 B
Rust
|
// check-pass
|
||
|
|
// compile-flags: -Zvalidate-mir
|
||
|
|
|
||
|
|
// This test checks that bivariant parameters are handled correctly
|
||
|
|
// in the mir.
|
||
|
|
#![allow(coherence_leak_check)]
|
||
|
|
trait Trait {
|
||
|
|
type Assoc;
|
||
|
|
}
|
||
|
|
|
||
|
|
struct Foo<T, U>(T)
|
||
|
|
where
|
||
|
|
T: Trait<Assoc = U>;
|
||
|
|
|
||
|
|
impl Trait for for<'a> fn(&'a ()) {
|
||
|
|
type Assoc = u32;
|
||
|
|
}
|
||
|
|
impl Trait for fn(&'static ()) {
|
||
|
|
type Assoc = String;
|
||
|
|
}
|
||
|
|
|
||
|
|
fn foo(x: Foo<for<'a> fn(&'a ()), u32>) -> Foo<fn(&'static ()), String> {
|
||
|
|
x
|
||
|
|
}
|
||
|
|
|
||
|
|
fn main() {}
|