mirror of https://github.com/rust-lang/rust
113 lines
4.7 KiB
Plaintext
113 lines
4.7 KiB
Plaintext
error[E0308]: mismatched types
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--> $DIR/fn-item-type.rs:22:19
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LL | eq(foo::<u8>, bar::<u8>);
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| -- --------- ^^^^^^^^^ expected fn item, found a different fn item
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| | expected all arguments to be this fn item type because they need to match the type of this parameter
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| arguments to this function are incorrect
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= note: expected fn item `fn(_) -> _ {foo::<u8>}`
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found fn item `fn(_) -> _ {bar::<u8>}`
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= note: different fn items have unique types, even if their signatures are the same
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note: function defined here
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--> $DIR/fn-item-type.rs:11:4
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LL | fn eq<T>(x: T, y: T) {}
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| ^^ - ---- ---- this parameter needs to match the fn item type of `x`
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| | `y` needs to match the fn item type of this parameter
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| `x` and `y` all reference this parameter T
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= help: consider casting both fn items to fn pointers using `as fn(isize) -> isize`
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error[E0308]: mismatched types
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--> $DIR/fn-item-type.rs:29:19
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LL | eq(foo::<u8>, foo::<i8>);
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| -- --------- ^^^^^^^^^ expected `u8`, found `i8`
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| | expected all arguments to be this fn item type because they need to match the type of this parameter
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| arguments to this function are incorrect
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= note: expected fn item `fn(_) -> _ {foo::<u8>}`
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found fn item `fn(_) -> _ {foo::<i8>}`
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= note: different fn items have unique types, even if their signatures are the same
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note: function defined here
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--> $DIR/fn-item-type.rs:11:4
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LL | fn eq<T>(x: T, y: T) {}
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| ^^ - ---- ---- this parameter needs to match the fn item type of `x`
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| | `y` needs to match the fn item type of this parameter
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| `x` and `y` all reference this parameter T
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= help: consider casting both fn items to fn pointers using `as fn(isize) -> isize`
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error[E0308]: mismatched types
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--> $DIR/fn-item-type.rs:34:23
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LL | eq(bar::<String>, bar::<Vec<u8>>);
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| -- ------------- ^^^^^^^^^^^^^^ expected `String`, found `Vec<u8>`
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| | expected all arguments to be this fn item type because they need to match the type of this parameter
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| arguments to this function are incorrect
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= note: expected fn item `fn(_) -> _ {bar::<String>}`
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found fn item `fn(_) -> _ {bar::<Vec<u8>>}`
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= note: different fn items have unique types, even if their signatures are the same
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note: function defined here
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--> $DIR/fn-item-type.rs:11:4
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LL | fn eq<T>(x: T, y: T) {}
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| ^^ - ---- ---- this parameter needs to match the fn item type of `x`
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| | `y` needs to match the fn item type of this parameter
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| `x` and `y` all reference this parameter T
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= help: consider casting both fn items to fn pointers using `as fn(isize) -> isize`
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error[E0308]: mismatched types
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--> $DIR/fn-item-type.rs:40:26
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LL | eq(<u8 as Foo>::foo, <u16 as Foo>::foo);
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| -- ---------------- ^^^^^^^^^^^^^^^^^ expected `u8`, found `u16`
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| | expected all arguments to be this fn item type because they need to match the type of this parameter
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| arguments to this function are incorrect
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= note: expected fn item `fn() {<u8 as Foo>::foo}`
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found fn item `fn() {<u16 as Foo>::foo}`
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= note: different fn items have unique types, even if their signatures are the same
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note: function defined here
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--> $DIR/fn-item-type.rs:11:4
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LL | fn eq<T>(x: T, y: T) {}
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| ^^ - ---- ---- this parameter needs to match the fn item type of `x`
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| | `y` needs to match the fn item type of this parameter
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| `x` and `y` all reference this parameter T
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= help: consider casting both fn items to fn pointers using `as fn()`
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error[E0308]: mismatched types
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--> $DIR/fn-item-type.rs:45:19
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LL | eq(foo::<u8>, bar::<u8> as fn(isize) -> isize);
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| -- --------- ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected fn item, found fn pointer
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| | expected all arguments to be this fn item type because they need to match the type of this parameter
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| arguments to this function are incorrect
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= note: expected fn item `fn(_) -> _ {foo::<u8>}`
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found fn pointer `fn(_) -> _`
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= help: consider casting the fn item to a fn pointer: `foo::<u8> as fn(isize) -> isize`
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note: function defined here
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--> $DIR/fn-item-type.rs:11:4
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LL | fn eq<T>(x: T, y: T) {}
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| ^^ - ---- ---- this parameter needs to match the fn item type of `x`
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| | `y` needs to match the fn item type of this parameter
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| `x` and `y` all reference this parameter T
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error: aborting due to 5 previous errors
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For more information about this error, try `rustc --explain E0308`.
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