1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
|
#![allow(dead_code)]
//@ run-rustfix
// Check projection of an associated type out of a higher-ranked trait-bound
// in the context of a method definition in a trait.
pub trait Foo<T> {
type A;
fn get(&self, t: T) -> Self::A;
}
trait SomeTrait<I : for<'x> Foo<&'x isize>> {
fn some_method(&self, arg: <I as Foo<&isize>>::A);
//~^ ERROR cannot use the associated type of a trait with uninferred generic parameters
}
trait AnotherTrait<I : for<'x> Foo<&'x isize>> {
fn some_method(&self, arg: <I as Foo<&isize>>::A);
}
trait YetAnotherTrait<I : for<'x> Foo<&'x isize>> {
fn some_method<'a>(&self, arg: <I as Foo<&'a isize>>::A);
}
trait Banana<'a> {
type Assoc: Default;
}
struct Peach<X>(std::marker::PhantomData<X>);
impl<X: for<'a> Banana<'a>> Peach<X> {
fn mango(&self) -> <X as Banana<'_>>::Assoc {
//~^ ERROR cannot use the associated type of a trait with uninferred generic parameters
Default::default()
}
}
pub fn main() {}
|
