tests/ui/generator/panic-safe.rs

   1 // run-pass
   2 // needs-unwind
   3
   4
   5 #![feature(generators, generator_trait)]
   6
   7 use std::ops::Generator;
   8 use std::pin::Pin;
   9 use std::panic;
  10
  11 fn main() {
  12     let mut foo = || {
  13         if true {
  14             panic!();
  15         }
  16         yield;
  17     };
  18
  19     let res = panic::catch_unwind(panic::AssertUnwindSafe(|| {
  20         Pin::new(&mut foo).resume(())
  21     }));
  22     assert!(res.is_err());
  23
  24     for _ in 0..10 {
  25         let res = panic::catch_unwind(panic::AssertUnwindSafe(|| {
  26             Pin::new(&mut foo).resume(())
  27         }));
  28         assert!(res.is_err());
  29     }
  30 }