mirror of https://github.com/rust-lang/rust
24 lines
498 B
Rust
24 lines
498 B
Rust
//@ revisions: current next
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//@ ignore-compare-mode-next-solver (explicit revisions)
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//@[next] compile-flags: -Znext-solver
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// See #124385 for more details.
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trait Foo<'a> {}
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fn needs_foo<T>(_: T)
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where
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for<'a> Wrap<T>: Foo<'a>,
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{
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}
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struct Wrap<T>(T);
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impl<'a, T> Foo<'a> for Wrap<T> where T: Fn(&'a i32) {}
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fn main() {
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needs_foo(|x| {
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//[current]~^ implementation of `Foo` is not general enough
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//[next]~^^ ERROR type annotations needed
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x.to_string();
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});
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}
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