tests/ui/traits/issue-72455.rs

   1 // check-pass
   2
   3 pub trait ResultExt {
   4     type Ok;
   5     fn err_eprint_and_ignore(self) -> Option<Self::Ok>;
   6 }
   7
   8 impl<O, E> ResultExt for std::result::Result<O, E>
   9 where
  10     E: std::error::Error,
  11 {
  12     type Ok = O;
  13     fn err_eprint_and_ignore(self) -> Option<O>
  14     where
  15         Self: ,
  16     {
  17         match self {
  18             Err(e) => {
  19                 eprintln!("{}", e);
  20                 None
  21             }
  22             Ok(o) => Some(o),
  23         }
  24     }
  25 }
  26
  27 fn main() {}