rust/src/test/ui/suggestions/object-unsafe-trait-should-use-self.stderr

error: associated item referring to unboxed trait object for its own trait
  --> $DIR/object-unsafe-trait-should-use-self.rs:3:13
   |
LL | trait A: Sized {
   |       - in this trait
LL |     fn f(a: A) -> A;
   |             ^     ^
   |
help: you might have meant to use `Self` to refer to the implementing type
   |
LL |     fn f(a: Self) -> Self;
   |             ^^^^     ^^^^

error[E0038]: the trait `A` cannot be made into an object
  --> $DIR/object-unsafe-trait-should-use-self.rs:3:13
   |
LL | trait A: Sized {
   |       -  ----- ...because it requires `Self: Sized`
   |       |
   |       this trait cannot be made into an object...
LL |     fn f(a: A) -> A;
   |             ^ the trait `A` cannot be made into an object

error: associated item referring to unboxed trait object for its own trait
  --> $DIR/object-unsafe-trait-should-use-self.rs:8:13
   |
LL | trait B {
   |       - in this trait
LL |     fn f(a: B) -> B;
   |             ^     ^
   |
help: you might have meant to use `Self` to refer to the implementing type
   |
LL |     fn f(a: Self) -> Self;
   |             ^^^^     ^^^^

error[E0038]: the trait `B` cannot be made into an object
  --> $DIR/object-unsafe-trait-should-use-self.rs:8:13
   |
LL | trait B {
   |       - this trait cannot be made into an object...
LL |     fn f(a: B) -> B;
   |        -    ^ the trait `B` cannot be made into an object
   |        |
   |        ...because associated function `f` has no `self` parameter
   |
help: consider turning `f` into a method by giving it a `&self` argument or constraining it so it does not apply to trait objects
   |
LL |     fn f(a: B) -> B where Self: Sized;
   |                     ^^^^^^^^^^^^^^^^^

error: aborting due to 4 previous errors

For more information about this error, try `rustc --explain E0038`.