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// run-pass | ||
//! Regression test for #58311, regarding the usage of Fn types in drop impls | ||
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// All of this Drop impls should compile. | ||
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#[allow(dead_code)] | ||
struct S<F: Fn() -> [u8; 1]>(F); | ||
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impl<F: Fn() -> [u8; 1]> Drop for S<F> { | ||
fn drop(&mut self) {} | ||
} | ||
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#[allow(dead_code)] | ||
struct P<A, F: FnOnce() -> [A; 10]>(F); | ||
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impl<A, F: FnOnce() -> [A; 10]> Drop for P<A, F> { | ||
fn drop(&mut self) {} | ||
} | ||
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fn main() {} |
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// run-pass | ||
//! Regression test for #34426, regarding HRTB in drop impls | ||
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// All of this Drop impls should compile. | ||
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pub trait Lifetime<'a> {} | ||
impl<'a> Lifetime<'a> for i32 {} | ||
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#[allow(dead_code)] | ||
struct Foo<L> | ||
where | ||
for<'a> L: Lifetime<'a>, | ||
{ | ||
l: L, | ||
} | ||
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impl<L> Drop for Foo<L> | ||
where | ||
for<'a> L: Lifetime<'a>, | ||
{ | ||
fn drop(&mut self) {} | ||
} | ||
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#[allow(dead_code)] | ||
struct Foo2<L> | ||
where | ||
for<'a> L: Lifetime<'a>, | ||
{ | ||
l: L, | ||
} | ||
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impl<T: for<'a> Lifetime<'a>> Drop for Foo2<T> | ||
where | ||
for<'x> T: Lifetime<'x>, | ||
{ | ||
fn drop(&mut self) {} | ||
} | ||
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pub trait Lifetime2<'a, 'b> {} | ||
impl<'a, 'b> Lifetime2<'a, 'b> for i32 {} | ||
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#[allow(dead_code)] | ||
struct Bar<L> | ||
where | ||
for<'a, 'b> L: Lifetime2<'a, 'b>, | ||
{ | ||
l: L, | ||
} | ||
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impl<L> Drop for Bar<L> | ||
where | ||
for<'a, 'b> L: Lifetime2<'a, 'b>, | ||
{ | ||
fn drop(&mut self) {} | ||
} | ||
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#[allow(dead_code)] | ||
struct FnHolder<T: for<'a> Fn(&'a T, dyn for<'b> Lifetime2<'a, 'b>) -> u8>(T); | ||
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impl<T: for<'a> Fn(&'a T, dyn for<'b> Lifetime2<'a, 'b>) -> u8> Drop for FnHolder<T> { | ||
fn drop(&mut self) {} | ||
} | ||
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fn main() { | ||
let _foo = Foo { l: 0 }; | ||
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let _bar = Bar { l: 0 }; | ||
} |