src/test/ui/error-codes/e0119/auxiliary/issue-23563-a.rs

   1 // Ref: https://github.com/rust-lang/rust/issues/23563#issuecomment-260751672
   2
   3 pub trait LolTo<T> {
   4     fn convert_to(&self) -> T;
   5 }
   6
   7 pub trait LolInto<T>: Sized {
   8     fn convert_into(self) -> T;
   9 }
  10
  11 pub trait LolFrom<T> {
  12     fn from(_: T) -> Self;
  13 }
  14
  15 impl<'a, T: ?Sized, U> LolInto<U> for &'a T where T: LolTo<U> {
  16     fn convert_into(self) -> U {
  17         self.convert_to()
  18     }
  19 }
  20
  21 impl<T, U> LolFrom<T> for U where T: LolInto<U> {
  22     fn from(t: T) -> U {
  23         t.convert_into()
  24     }
  25 }