mirror of https://github.com/rust-lang/rust
24 lines
396 B
Rust
24 lines
396 B
Rust
trait Fun {
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type F<'a>: ?Sized;
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fn identity<'a>(t: &'a Self::F<'a>) -> &'a Self::F<'a> { t }
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}
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impl <T> Fun for T {
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type F<'a> = [u8];
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}
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fn bug<'a, T: ?Sized + Fun<F<'a> = [u8]>>(_ : Box<T>) -> &'static T::F<'a> {
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let a = [0; 1];
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let _x = T::identity(&a);
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//~^ ERROR: `a` does not live long enough
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todo!()
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}
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fn main() {
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let x = 10;
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bug(Box::new(x));
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}
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