mirror of https://github.com/rust-lang/rust
27 lines
1.1 KiB
Plaintext
27 lines
1.1 KiB
Plaintext
error[E0631]: type mismatch in closure arguments
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--> $DIR/unboxed-closures-vtable-mismatch.rs:16:24
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LL | let f = to_fn_mut(|x: usize, y: isize| -> isize { (x as isize) + y });
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| ----------------------------- found signature defined here
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LL |
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LL | let z = call_it(3, f);
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| ------- ^ expected due to this
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| |
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| required by a bound introduced by this call
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= note: expected closure signature `fn(isize, _) -> _`
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found closure signature `fn(usize, _) -> _`
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note: required by a bound in `call_it`
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--> $DIR/unboxed-closures-vtable-mismatch.rs:7:15
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LL | fn call_it<F: FnMut(isize, isize) -> isize>(y: isize, mut f: F) -> isize {
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ required by this bound in `call_it`
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help: consider wrapping the function in a closure
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LL | let z = call_it(3, |arg0: isize, arg1: isize| f(/* usize */, arg1));
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| ++++++++++++++++++++++++++ +++++++++++++++++++
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error: aborting due to 1 previous error
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For more information about this error, try `rustc --explain E0631`.
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