[rustc.git] / src / test / ui / traits / alias / object-fail.stderr

error[E0038]: the trait `Eq` cannot be made into an object
  --> $DIR/object-fail.rs:7:13
   |
LL |     let _: &dyn EqAlias = &123;
   |             ^^^^^^^^^^^ `Eq` cannot be made into an object
   |
note: for a trait to be "object safe" it needs to allow building a vtable to allow the call to be resolvable dynamically; for more information visit <https://doc.rust-lang.org/reference/items/traits.html#object-safety>
  --> $SRC_DIR/core/src/cmp.rs:LL:COL
   |
LL | pub trait Eq: PartialEq<Self> {
   |               ^^^^^^^^^^^^^^^ the trait cannot be made into an object because it uses `Self` as a type parameter

error[E0191]: the value of the associated type `Item` (from trait `Iterator`) must be specified
  --> $DIR/object-fail.rs:9:17
   |
LL |     let _: &dyn IteratorAlias = &vec![123].into_iter();
   |                 ^^^^^^^^^^^^^ help: specify the associated type: `IteratorAlias<Item = Type>`

error: aborting due to 2 previous errors

Some errors have detailed explanations: E0038, E0191.
For more information about an error, try `rustc --explain E0038`.
Commit	Line	Data
1b1a35ee	1	error[E0038]: the trait `Eq` cannot be made into an object
6a06907d	2	--> $DIR/object-fail.rs:7:13
a1dfa0c6	3	\|
532ac7d7	4	LL \| let _: &dyn EqAlias = &123;
29967ef6 XL	5	\| ^^^^^^^^^^^ `Eq` cannot be made into an object
	6	\|
	7	note: for a trait to be "object safe" it needs to allow building a vtable to allow the call to be resolvable dynamically; for more information visit <https://doc.rust-lang.org/reference/items/traits.html#object-safety>
	8	--> $SRC_DIR/core/src/cmp.rs:LL:COL
a1dfa0c6	9	\|
74b04a01	10	LL \| pub trait Eq: PartialEq<Self> {
29967ef6	11	\| ^^^^^^^^^^^^^^^ the trait cannot be made into an object because it uses `Self` as a type parameter
a1dfa0c6	12
1b1a35ee	13	error[E0191]: the value of the associated type `Item` (from trait `Iterator`) must be specified
6a06907d	14	--> $DIR/object-fail.rs:9:17
a1dfa0c6	15	\|
532ac7d7	16	LL \| let _: &dyn IteratorAlias = &vec![123].into_iter();
dfeec247	17	\| ^^^^^^^^^^^^^ help: specify the associated type: `IteratorAlias<Item = Type>`
a1dfa0c6 XL	18
	19	error: aborting due to 2 previous errors
	20
48663c56	21	Some errors have detailed explanations: E0038, E0191.
a1dfa0c6	22	For more information about an error, try `rustc --explain E0038`.