tests/ui/associated-types/issue-54467.rs

   1 // run-pass
   2
   3 pub trait Stream {
   4     type Item;
   5     type Error;
   6 }
   7
   8 pub trait ParseError<I> {
   9     type Output;
  10 }
  11
  12 impl ParseError<char> for u32 {
  13     type Output = ();
  14 }
  15
  16 impl Stream for () {
  17     type Item = char;
  18     type Error = u32;
  19 }
  20
  21 pub struct Lex<'a, I>
  22     where I: Stream,
  23           I::Error: ParseError<char>,
  24           <<I as Stream>::Error as ParseError<char>>::Output: 'a
  25 {
  26     x: &'a <I::Error as ParseError<char>>::Output
  27 }
  28
  29 pub struct Reserved<'a, I> where
  30     I: Stream<Item=char> + 'a,
  31     I::Error: ParseError<I::Item>,
  32     <<I as Stream>::Error as ParseError<char>>::Output: 'a
  33
  34 {
  35     x: Lex<'a, I>
  36 }
  37
  38 fn main() {
  39     let r: Reserved<()> = Reserved {
  40         x: Lex {
  41             x: &()
  42         }
  43     };
  44
  45     let _v = r.x.x;
  46 }