12 lines
258 B
Rust
12 lines
258 B
Rust
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// Regression test for #139004
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use std::any::Any;
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type B = Box<dyn for<'a> Fn(&(dyn Any + 'a)) -> Box<dyn Any + 'a>>;
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fn foo<E>() -> B {
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Box::new(|e| Box::new(e.is::<E>()))
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//~^ ERROR the parameter type `E` may not live long enough
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}
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fn main() {}
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