tests/ui/regions/regions-params.rs

   1 // run-pass
   2 #![allow(unused_parens)]
   3
   4
   5 fn region_identity(x: &usize) -> &usize { x }
   6
   7 fn apply<T, F>(t: T, f: F) -> T where F: FnOnce(T) -> T { f(t) }
   8
   9 fn parameterized(x: &usize) -> usize {
  10     let z = apply(x, ({|y|
  11         region_identity(y)
  12     }));
  13     *z
  14 }
  15
  16 pub fn main() {
  17     let x = 3;
  18     assert_eq!(parameterized(&x), 3);
  19 }