27 lines
446 B
Rust
27 lines
446 B
Rust
use std::fmt;
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pub trait MethodType {
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type GetProp: ?Sized;
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}
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pub struct MTFn;
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impl<'a> MethodType for MTFn { //~ ERROR E0207
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type GetProp = fmt::Debug + 'a;
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}
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fn bad(a: Box<<MTFn as MethodType>::GetProp>) -> Box<fmt::Debug+'static> {
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a
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}
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fn dangling(a: &str) -> Box<fmt::Debug> {
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bad(Box::new(a))
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}
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fn main() {
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let mut s = "hello".to_string();
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let x = dangling(&s);
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s = String::new();
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println!("{:?}", x);
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}
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