src/test/ui/generator/static-generators.rs

   1 // run-pass
   2
   3 #![feature(generators, generator_trait)]
   4
   5 use std::pin::Pin;
   6 use std::ops::{Generator, GeneratorState};
   7
   8 fn main() {
   9     let mut generator = static || {
  10         let a = true;
  11         let b = &a;
  12         yield;
  13         assert_eq!(b as *const _, &a as *const _);
  14     };
  15     // SAFETY: We shadow the original generator variable so have no safe API to
  16     // move it after this point.
  17     let mut generator = unsafe { Pin::new_unchecked(&mut generator) };
  18     assert_eq!(generator.as_mut().resume(()), GeneratorState::Yielded(()));
  19     assert_eq!(generator.as_mut().resume(()), GeneratorState::Complete(()));
  20 }