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//@ run-pass
//! Regression test for #34426, regarding HRTB in drop impls
// All of this Drop impls should compile.
pub trait Lifetime<'a> {}
impl<'a> Lifetime<'a> for i32 {}
#[allow(dead_code)]
struct Foo<L>
where
for<'a> L: Lifetime<'a>,
{
l: L,
}
impl<L> Drop for Foo<L>
where
for<'a> L: Lifetime<'a>,
{
fn drop(&mut self) {}
}
#[allow(dead_code)]
struct Foo2<L>
where
for<'a> L: Lifetime<'a>,
{
l: L,
}
impl<T: for<'a> Lifetime<'a>> Drop for Foo2<T>
where
for<'x> T: Lifetime<'x>,
{
fn drop(&mut self) {}
}
pub trait Lifetime2<'a, 'b> {}
impl<'a, 'b> Lifetime2<'a, 'b> for i32 {}
#[allow(dead_code)]
struct Bar<L>
where
for<'a, 'b> L: Lifetime2<'a, 'b>,
{
l: L,
}
impl<L> Drop for Bar<L>
where
for<'a, 'b> L: Lifetime2<'a, 'b>,
{
fn drop(&mut self) {}
}
#[allow(dead_code)]
struct FnHolder<T: for<'a> Fn(&'a T, dyn for<'b> Lifetime2<'a, 'b>) -> u8>(T);
impl<T: for<'a> Fn(&'a T, dyn for<'b> Lifetime2<'a, 'b>) -> u8> Drop for FnHolder<T> {
fn drop(&mut self) {}
}
fn main() {
let _foo = Foo { l: 0 };
let _bar = Bar { l: 0 };
}
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