src/test/ui/issues/issue-3979.rs

   1 // run-pass
   2 #![allow(dead_code)]
   3 #![allow(non_snake_case)]
   4
   5 trait Positioned {
   6   fn SetX(&mut self, _: isize);
   7   fn X(&self) -> isize;
   8 }
   9
  10 trait Movable: Positioned {
  11   fn translate(&mut self, dx: isize) {
  12     let x = self.X();
  13     self.SetX(x + dx);
  14   }
  15 }
  16
  17 struct Point { x: isize, y: isize }
  18
  19 impl Positioned for Point {
  20     fn SetX(&mut self, x: isize) {
  21         self.x = x;
  22     }
  23     fn X(&self) -> isize {
  24         self.x
  25     }
  26 }
  27
  28 impl Movable for Point {}
  29
  30 pub fn main() {
  31     let mut p = Point{ x: 1, y: 2};
  32     p.translate(3);
  33     assert_eq!(p.X(), 4);
  34 }