src/test/ui/generic-associated-types/bugs/issue-87803.rs

   1 // check-fail
   2 // known-bug: #87803
   3
   4 // This should pass, but using a type alias vs a reference directly
   5 // changes late-bound -> early-bound.
   6
   7 #![feature(generic_associated_types)]
   8
   9 trait Scanner {
  10     type Input<'a>;
  11     type Token<'a>;
  12
  13     fn scan<'a>(&mut self, i : Self::Input<'a>) -> Self::Token<'a>;
  14 }
  15
  16 struct IdScanner();
  17
  18 impl Scanner for IdScanner {
  19     type Input<'a> = &'a str;
  20     type Token<'a> = &'a str;
  21
  22     fn scan<'a>(&mut self, s : &'a str) -> &'a str {
  23         s
  24     }
  25 }
  26
  27 fn main() {}