src/test/ui/issues/issue-28934.rs

   1 // Regression test: issue had to do with "givens" in region inference,
   2 // which were not being considered during the contraction phase.
   3
   4 // run-fail
   5 // error-pattern:explicit panic
   6 // ignore-emscripten no processes
   7
   8 struct Parser<'i: 't, 't>(&'i u8, &'t u8);
   9
  10 impl<'i, 't> Parser<'i, 't> {
  11     fn parse_nested_block<F, T>(&mut self, parse: F) -> Result<T, ()>
  12         where for<'tt> F: FnOnce(&mut Parser<'i, 'tt>) -> T
  13     {
  14         panic!()
  15     }
  16
  17     fn expect_exhausted(&mut self) -> Result<(), ()> {
  18         Ok(())
  19     }
  20 }
  21
  22 fn main() {
  23     let x = 0u8;
  24     Parser(&x, &x).parse_nested_block(|input| input.expect_exhausted()).unwrap();
  25 }