[rustc.git] / src / test / ui / issues / issue-18919.stderr

error[E0277]: the size for values of type `dyn for<'r> Fn(&'r isize) -> isize` cannot be known at compilation time
  --> $DIR/issue-18919.rs:3:15
   |
LL | fn ho_func(f: Option<FuncType>) {
   |               ^^^^^^^^^^^^^^^^ doesn't have a size known at compile-time
...
LL | enum Option<T> {
   |             - required by this bound in `Option`
   |
   = help: the trait `Sized` is not implemented for `dyn for<'r> Fn(&'r isize) -> isize`
help: you could relax the implicit `Sized` bound on `T` if it were used through indirection like `&T` or `Box<T>`
  --> $DIR/issue-18919.rs:7:13
   |
LL | enum Option<T> {
   |             ^ this could be changed to `T: ?Sized`...
LL |     Some(T),
   |          - ...if indirection was used here: `Box<T>`

error: aborting due to previous error

For more information about this error, try `rustc --explain E0277`.
Commit	Line	Data
1b1a35ee	1	error[E0277]: the size for values of type `dyn for<'r> Fn(&'r isize) -> isize` cannot be known at compilation time
74b04a01	2	--> $DIR/issue-18919.rs:3:15
8faf50e0	3	\|
74b04a01 XL	4	LL \| fn ho_func(f: Option<FuncType>) {
74b04a01 XL	5	\| ^^^^^^^^^^^^^^^^ doesn't have a size known at compile-time
ba9703b0 XL	6	...
	7	LL \| enum Option<T> {
	8	\| - required by this bound in `Option`
8faf50e0	9	\|
1b1a35ee	10	= help: the trait `Sized` is not implemented for `dyn for<'r> Fn(&'r isize) -> isize`
f035d41b XL	11	help: you could relax the implicit `Sized` bound on `T` if it were used through indirection like `&T` or `Box<T>`
	12	--> $DIR/issue-18919.rs:7:13
	13	\|
	14	LL \| enum Option<T> {
	15	\| ^ this could be changed to `T: ?Sized`...
	16	LL \| Some(T),
	17	\| - ...if indirection was used here: `Box<T>`
8faf50e0 XL	18
	19	error: aborting due to previous error
	20
	21	For more information about this error, try `rustc --explain E0277`.