src/test/run-pass/issues/issue-33687.rs

   1 // run-pass
   2 #![feature(unboxed_closures)]
   3 #![feature(fn_traits)]
   4
   5 struct Test;
   6
   7 impl FnOnce<(u32, u32)> for Test {
   8     type Output = u32;
   9
  10     extern "rust-call" fn call_once(self, (a, b): (u32, u32)) -> u32 {
  11         a + b
  12     }
  13 }
  14
  15 fn main() {
  16     assert_eq!(Test(1u32, 2u32), 3u32);
  17 }