src/test/run-pass/rec-tup.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
  12 #[derive(Copy, Clone)]
  13 struct Point {x: isize, y: isize}
  14
  15 type rect = (Point, Point);
  16
  17 fn fst(r: rect) -> Point { let (fst, _) = r; return fst; }
  18 fn snd(r: rect) -> Point { let (_, snd) = r; return snd; }
  19
  20 fn f(r: rect, x1: isize, y1: isize, x2: isize, y2: isize) {
  21     assert_eq!(fst(r).x, x1);
  22     assert_eq!(fst(r).y, y1);
  23     assert_eq!(snd(r).x, x2);
  24     assert_eq!(snd(r).y, y2);
  25 }
  26
  27 pub fn main() {
  28     let r: rect = (Point {x: 10, y: 20}, Point {x: 11, y: 22});
  29     assert_eq!(fst(r).x, 10);
  30     assert_eq!(fst(r).y, 20);
  31     assert_eq!(snd(r).x, 11);
  32     assert_eq!(snd(r).y, 22);
  33     let r2 = r;
  34     let x: isize = fst(r2).x;
  35     assert_eq!(x, 10);
  36     f(r, 10, 20, 11, 22);
  37     f(r2, 10, 20, 11, 22);
  38 }