src/test/ui/self/explicit-self-generic.rs

   1 // run-pass
   2 #![allow(dead_code)]
   3 #![feature(box_syntax)]
   4
   5 #[derive(Copy, Clone)]
   6 struct LM { resize_at: usize, size: usize }
   7
   8 enum HashMap<K,V> {
   9     HashMap_(LM, Vec<(K,V)>)
  10 }
  11
  12 fn linear_map<K,V>() -> HashMap<K,V> {
  13     HashMap::HashMap_(LM{
  14         resize_at: 32,
  15         size: 0}, Vec::new())
  16 }
  17
  18 impl<K,V> HashMap<K,V> {
  19     pub fn len(&mut self) -> usize {
  20         match *self {
  21             HashMap::HashMap_(ref l, _) => l.size
  22         }
  23     }
  24 }
  25
  26 pub fn main() {
  27     let mut m: Box<_> = box linear_map::<(),()>();
  28     assert_eq!(m.len(), 0);
  29 }