src/test/ui/generator/drop-yield-twice.rs

   1 #![feature(negative_impls, generators)]
   2
   3 struct Foo(i32);
   4 impl !Send for Foo {}
   5
   6 fn main() {
   7     assert_send(|| { //~ ERROR generator cannot be sent between threads safely
   8         let guard = Foo(42);
   9         yield;
  10         drop(guard);
  11         yield;
  12     })
  13 }
  14
  15 fn assert_send<T: Send>(_: T) {}