src/test/run-pass/associated-types-method.rs

   1 // Copyright 2015 The Rust Project Developers. See the COPYRIGHT
   2 // file at the top-level directory of this distribution and at
   3 // http://rust-lang.org/COPYRIGHT.
   4 //
   5 // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
   6 // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
   7 // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
   8 // option. This file may not be copied, modified, or distributed
   9 // except according to those terms.
  10
  11 // Test that methods whose impl-trait-ref contains associated types
  12 // are supported.
  13
  14 trait Device {
  15     type Resources;
  16 }
  17 struct Foo<D, R>(D, R);
  18
  19 trait Tr {
  20     fn present(&self) {}
  21 }
  22
  23 impl<D: Device> Tr for Foo<D, D::Resources> {
  24     fn present(&self) {}
  25 }
  26
  27 struct Res;
  28 struct Dev;
  29 impl Device for Dev {
  30     type Resources = Res;
  31 }
  32
  33 fn main() {
  34     let foo = Foo(Dev, Res);
  35     foo.present();
  36 }