| // Copyright 2015 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 that we do not get an error when you use `<Self as Get>::Value` in |
| // the trait definition if there is no default method and for every impl, |
| // `Self` does implement `Get`. |
| // |
| // See also compile-fail tests associated-types-no-suitable-supertrait |
| // and associated-types-no-suitable-supertrait-2, which show how small |
| // variants of the code below can fail. |
| |
| trait Get { |
| type Value; |
| } |
| |
| trait Other { |
| fn okay<U:Get>(&self, foo: U, bar: <Self as Get>::Value) |
| where Self: Get; |
| } |
| |
| impl Get for () { |
| type Value = f32; |
| } |
| |
| impl Get for f64 { |
| type Value = u32; |
| } |
| |
| impl Other for () { |
| fn okay<U:Get>(&self, _foo: U, _bar: <Self as Get>::Value) { } |
| } |
| |
| impl Other for f64 { |
| fn okay<U:Get>(&self, _foo: U, _bar: <Self as Get>::Value) { } |
| } |
| |
| fn main() { } |
