src/test/run-pass/traits/trait-bounds.rs

   1 // Copyright 2012 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 // run-pass
  12 #![allow(dead_code)]
  13 #![allow(non_camel_case_types)]
  14 #![allow(non_snake_case)]
  15
  16 trait connection {
  17     fn read(&self) -> isize;
  18 }
  19
  20 trait connection_factory<C:connection> {
  21     fn create(&self) -> C;
  22 }
  23
  24 type my_connection = ();
  25 type my_connection_factory = ();
  26
  27 impl connection for () {
  28     fn read(&self) -> isize { 43 }
  29 }
  30
  31 impl connection_factory<my_connection> for my_connection_factory {
  32     fn create(&self) -> my_connection { () }
  33 }
  34
  35 pub fn main() {
  36     let factory = ();
  37     let connection = factory.create();
  38     let result = connection.read();
  39     assert_eq!(result, 43);
  40 }