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// run-pass
#![allow(dead_code)]
// Test that we are handle to correctly handle a projection type
// that appears in a supertrait bound. Issue #20559.
trait A
{
type TA;
fn dummy(&self) { }
}
trait B<TB>
{
fn foo (&self, t : TB) -> String;
}
trait C<TC : A> : B<<TC as A>::TA> { }
struct X;
impl A for X
{
type TA = i32;
}
struct Y;
impl C<X> for Y { }
// Both of these impls are required for successful compilation
impl B<i32> for Y
{
fn foo (&self, t : i32) -> String
{
format!("First {}", t)
}
}
fn main ()
{
let y = Y;
assert_eq!(y.foo(5), format!("First 5"));
}
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