blob: a43b8d0741f2c6bbf4b2b3ee7f063a84da53f115 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
|
error[E0746]: return type cannot have an unboxed trait object
--> $DIR/issue-91803.rs:3:43
|
LL | fn or<'a>(first: &'static dyn Foo<'a>) -> dyn Foo<'a> {
| ^^^^^^^^^^^ doesn't have a size known at compile-time
|
help: return an `impl Trait` instead of a `dyn Trait`, if all returned values are the same type
|
LL | fn or<'a>(first: &'static dyn Foo<'a>) -> impl Foo<'a> {
| ~~~~
help: box the return type, and wrap all of the returned values in `Box::new`
|
LL | fn or<'a>(first: &'static dyn Foo<'a>) -> Box<dyn Foo<'a>> {
| ++++ +
error: aborting due to previous error
For more information about this error, try `rustc --explain E0746`.
|
