src/test/run-pass/generic-tag-values.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 enum noption<T> { some(T), }
  12
  13 struct Pair { x: isize, y: isize }
  14
  15 pub fn main() {
  16     let nop: noption<isize> = noption::some::<isize>(5);
  17     match nop { noption::some::<isize>(n) => { println!("{}", n); assert_eq!(n, 5); } }
  18     let nop2: noption<Pair> = noption::some(Pair{x: 17, y: 42});
  19     match nop2 {
  20       noption::some(t) => {
  21         println!("{}", t.x);
  22         println!("{}", t.y);
  23         assert_eq!(t.x, 17);
  24         assert_eq!(t.y, 42);
  25       }
  26     }
  27 }