mirror of https://github.com/rust-lang/rust
28 lines
915 B
Rust
28 lines
915 B
Rust
// <https://github.com/rust-lang/rust/issues/114936>
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fn whoops(
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s: String,
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f: impl for<'s> FnOnce(&'s str) -> (&'static str, [&'static &'s (); 0]),
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) -> &'static str
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{
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f(&s).0
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//~^ ERROR `s` does not live long enough
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}
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// <https://github.com/rust-lang/rust/issues/118876>
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fn extend<T>(input: &T) -> &'static T {
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struct Bounded<'a, 'b: 'static, T>(&'a T, [&'b (); 0]);
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let n: Box<dyn FnOnce(&T) -> Bounded<'static, '_, T>> = Box::new(|x| Bounded(x, []));
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n(input).0
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//~^ ERROR borrowed data escapes outside of function
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}
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// <https://github.com/rust-lang/rust/issues/118876>
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fn extend_mut<'a, T>(input: &'a mut T) -> &'static mut T {
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struct Bounded<'a, 'b: 'static, T>(&'a mut T, [&'b (); 0]);
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let mut n: Box<dyn FnMut(&mut T) -> Bounded<'static, '_, T>> = Box::new(|x| Bounded(x, []));
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n(input).0
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//~^ ERROR borrowed data escapes outside of function
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}
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fn main() {}
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