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// run-pass
#![allow(unused_variables)]
pub trait TryTransform {
fn try_transform<F>(self, f: F)
where
Self: Sized,
F: FnOnce(Self);
}
impl<'a, T> TryTransform for &'a mut T {
fn try_transform<F>(self, f: F)
where
// The bug was that `Self: Sized` caused the lifetime of `this` to "extend" for all
// of 'a instead of only lasting as long as the binding is used (for just that line).
Self: Sized,
F: FnOnce(Self),
{
let this: *mut T = self as *mut T;
f(self);
}
}
fn main() {
}
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