| // Copyright 2014 The Rust Project Developers. See the COPYRIGHT |
| // file at the top-level directory of this distribution and at |
| // http://rust-lang.org/COPYRIGHT. |
| // |
| // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or |
| // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license |
| // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your |
| // option. This file may not be copied, modified, or distributed |
| // except according to those terms. |
| |
| // 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::A); |
| //~^ ERROR cannot extract an associated type from a higher-ranked trait bound in this context |
| } |
| |
| 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); |
| } |
| |
| pub fn main() {} |