01f65afa4a
This commit improves the diagnostic when a type parameter is expected and a closure is found, noting that each closure has a distinct type and therefore could not always match the caller-chosen type of the parameter. Signed-off-by: David Wood <david@davidtw.co>
6 lines
108 B
Rust
6 lines
108 B
Rust
fn foo<F: FnMut()>() {
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let _: Box<F> = Box::new(|| ());
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//~^ ERROR mismatched types
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}
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fn main() {}
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