mirror of https://github.com/rust-lang/rust
26 lines
625 B
Rust
26 lines
625 B
Rust
#![allow(warnings)]
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trait A<T>
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{
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fn get(&self) -> T { panic!() }
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}
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struct B<'a, T: 'a>(&'a (A<T> + 'a));
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trait X { fn foo(&self) {} }
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impl<'a, T> X for B<'a, T> {}
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fn f<'a, T, U>(v: Box<A<T> + 'static>) -> Box<X + 'static> {
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// oh dear!
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Box::new(B(&*v)) as Box<dyn X>
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//~^ ERROR the parameter type `T` may not live long enough
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//~| ERROR the parameter type `T` may not live long enough
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//~| ERROR the parameter type `T` may not live long enough
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//~| ERROR the parameter type `T` may not live long enough
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//~| ERROR cannot return value referencing local data `*v` [E0515]
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}
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fn main() {}
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