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error[E0277]: the trait bound `fn() -> bool {example}: Foo` is not satisfied
--> $DIR/fn-trait-cast-diagnostic.rs:21:15
|
LL | do_on_foo(example);
| --------- ^^^^^^^ the trait `Foo` is not implemented for fn item `fn() -> bool {example}`
| |
| required by a bound introduced by this call
|
note: required by a bound in `do_on_foo`
--> $DIR/fn-trait-cast-diagnostic.rs:17:22
|
LL | fn do_on_foo(v: impl Foo) {}
| ^^^ required by this bound in `do_on_foo`
help: use parentheses to call this function
|
LL | do_on_foo(example());
| ++
help: the trait `Foo` is implemented for fn pointer `fn() -> bool`, try casting using `as`
|
LL | do_on_foo(example as fn() -> bool);
| +++++++++++++++
error[E0277]: the trait bound `fn() -> bool {example}: NoOtherFoo` is not satisfied
--> $DIR/fn-trait-cast-diagnostic.rs:24:22
|
LL | do_on_single_foo(example);
| ---------------- ^^^^^^^ the trait `NoOtherFoo` is not implemented for fn item `fn() -> bool {example}`
| |
| required by a bound introduced by this call
|
note: required by a bound in `do_on_single_foo`
--> $DIR/fn-trait-cast-diagnostic.rs:18:29
|
LL | fn do_on_single_foo(v: impl NoOtherFoo) {}
| ^^^^^^^^^^ required by this bound in `do_on_single_foo`
help: the trait `NoOtherFoo` is implemented for fn pointer `fn() -> bool`, try casting using `as`
|
LL | do_on_single_foo(example as fn() -> bool);
| +++++++++++++++
error: aborting due to 2 previous errors
For more information about this error, try `rustc --explain E0277`.
|
