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