src/test/ui/generator/niche-in-generator.rs

   1 // Test that niche finding works with captured generator upvars.
   2
   3 // run-pass
   4
   5 #![feature(generators)]
   6
   7 use std::mem::size_of_val;
   8
   9 fn take<T>(_: T) {}
  10
  11 fn main() {
  12     let x = false;
  13     let gen1 = || {
  14         yield;
  15         take(x);
  16     };
  17
  18     assert_eq!(size_of_val(&gen1), size_of_val(&Some(gen1)));
  19 }