mirror of https://github.com/rust-lang/rust
19 lines
530 B
Rust
19 lines
530 B
Rust
//! Regression test for #74400: Type mismatch in function arguments E0631, E0271 are falsely
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//! recognized as "implementation of `FnOnce` is not general enough".
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use std::convert::identity;
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fn main() {}
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fn f<T, S>(data: &[T], key: impl Fn(&T) -> S) {
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}
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fn g<T>(data: &[T]) {
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f(data, identity)
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//~^ ERROR the parameter type
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//~| ERROR the parameter type
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//~| ERROR the parameter type
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//~| ERROR implementation of `FnOnce` is not general enough
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//~| ERROR implementation of `Fn` is not general enough
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}
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