mirror of https://github.com/rust-lang/rust
21 lines
747 B
Rust
21 lines
747 B
Rust
// Test that Fn-family traits with lifetime parameters shouldn't compile and
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// we suggest the usage of higher-rank trait bounds instead.
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fn fa(_: impl Fn<'a>(&'a str) -> bool) {}
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//~^ ERROR `Fn` traits cannot take lifetime parameters
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fn fb(_: impl FnMut<'a, 'b>(&'a str, &'b str) -> bool) {}
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//~^ ERROR `Fn` traits cannot take lifetime parameters
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fn fc(_: impl std::fmt::Display + FnOnce<'a>(&'a str) -> bool + std::fmt::Debug) {}
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//~^ ERROR `Fn` traits cannot take lifetime parameters
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use std::ops::Fn as AliasedFn;
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fn fd(_: impl AliasedFn<'a>(&'a str) -> bool) {}
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//~^ ERROR `Fn` traits cannot take lifetime parameters
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fn fe<F>(_: F) where F: Fn<'a>(&'a str) -> bool {}
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//~^ ERROR `Fn` traits cannot take lifetime parameters
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fn main() {}
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