151 lines
4.9 KiB
Rust
151 lines
4.9 KiB
Rust
use pin_project::pin_project;
|
|
# [pin (__private (project = Proj , project_ref = ProjRef , project_replace = ProjOwn))]
|
|
struct Struct<T, U> {
|
|
#[pin]
|
|
pinned: T,
|
|
unpinned: U,
|
|
}
|
|
#[allow(box_pointers)]
|
|
#[allow(deprecated)]
|
|
#[allow(explicit_outlives_requirements)]
|
|
#[allow(single_use_lifetimes)]
|
|
#[allow(unreachable_pub)]
|
|
#[allow(clippy::unknown_clippy_lints)]
|
|
#[allow(clippy::pattern_type_mismatch)]
|
|
#[allow(clippy::redundant_pub_crate)]
|
|
#[allow(clippy::type_repetition_in_bounds)]
|
|
#[allow(dead_code)]
|
|
#[allow(clippy::mut_mut)]
|
|
struct Proj<'pin, T, U>
|
|
where
|
|
Struct<T, U>: 'pin,
|
|
{
|
|
pinned: ::pin_project::__private::Pin<&'pin mut (T)>,
|
|
unpinned: &'pin mut (U),
|
|
}
|
|
#[allow(box_pointers)]
|
|
#[allow(deprecated)]
|
|
#[allow(explicit_outlives_requirements)]
|
|
#[allow(single_use_lifetimes)]
|
|
#[allow(unreachable_pub)]
|
|
#[allow(clippy::unknown_clippy_lints)]
|
|
#[allow(clippy::pattern_type_mismatch)]
|
|
#[allow(clippy::redundant_pub_crate)]
|
|
#[allow(clippy::type_repetition_in_bounds)]
|
|
#[allow(dead_code)]
|
|
#[allow(clippy::ref_option_ref)]
|
|
struct ProjRef<'pin, T, U>
|
|
where
|
|
Struct<T, U>: 'pin,
|
|
{
|
|
pinned: ::pin_project::__private::Pin<&'pin (T)>,
|
|
unpinned: &'pin (U),
|
|
}
|
|
#[allow(box_pointers)]
|
|
#[allow(deprecated)]
|
|
#[allow(explicit_outlives_requirements)]
|
|
#[allow(single_use_lifetimes)]
|
|
#[allow(unreachable_pub)]
|
|
#[allow(clippy::unknown_clippy_lints)]
|
|
#[allow(clippy::pattern_type_mismatch)]
|
|
#[allow(clippy::redundant_pub_crate)]
|
|
#[allow(clippy::type_repetition_in_bounds)]
|
|
#[allow(dead_code)]
|
|
struct ProjOwn<T, U> {
|
|
pinned: ::pin_project::__private::PhantomData<T>,
|
|
unpinned: U,
|
|
}
|
|
#[allow(box_pointers)]
|
|
#[allow(deprecated)]
|
|
#[allow(explicit_outlives_requirements)]
|
|
#[allow(single_use_lifetimes)]
|
|
#[allow(unreachable_pub)]
|
|
#[allow(clippy::unknown_clippy_lints)]
|
|
#[allow(clippy::pattern_type_mismatch)]
|
|
#[allow(clippy::redundant_pub_crate)]
|
|
#[allow(clippy::type_repetition_in_bounds)]
|
|
#[allow(unused_qualifications)]
|
|
#[allow(clippy::semicolon_if_nothing_returned)]
|
|
#[allow(clippy::use_self)]
|
|
#[allow(clippy::used_underscore_binding)]
|
|
const _: () = {
|
|
#[allow(unused_extern_crates)]
|
|
extern crate pin_project as _pin_project;
|
|
impl<T, U> Struct<T, U> {
|
|
fn project<'pin>(self: _pin_project::__private::Pin<&'pin mut Self>) -> Proj<'pin, T, U> {
|
|
unsafe {
|
|
let Self { pinned, unpinned } = self.get_unchecked_mut();
|
|
Proj {
|
|
pinned: _pin_project::__private::Pin::new_unchecked(pinned),
|
|
unpinned,
|
|
}
|
|
}
|
|
}
|
|
#[allow(clippy::missing_const_for_fn)]
|
|
fn project_ref<'pin>(
|
|
self: _pin_project::__private::Pin<&'pin Self>,
|
|
) -> ProjRef<'pin, T, U> {
|
|
unsafe {
|
|
let Self { pinned, unpinned } = self.get_ref();
|
|
ProjRef {
|
|
pinned: _pin_project::__private::Pin::new_unchecked(pinned),
|
|
unpinned,
|
|
}
|
|
}
|
|
}
|
|
fn project_replace(
|
|
self: _pin_project::__private::Pin<&mut Self>,
|
|
__replacement: Self,
|
|
) -> ProjOwn<T, U> {
|
|
unsafe {
|
|
let __self_ptr: *mut Self = self.get_unchecked_mut();
|
|
let __guard =
|
|
_pin_project::__private::UnsafeOverwriteGuard::new(__self_ptr, __replacement);
|
|
let Self { pinned, unpinned } = &mut *__self_ptr;
|
|
let __result = ProjOwn {
|
|
pinned: _pin_project::__private::PhantomData,
|
|
unpinned: _pin_project::__private::ptr::read(unpinned),
|
|
};
|
|
{
|
|
let __guard = _pin_project::__private::UnsafeDropInPlaceGuard::new(pinned);
|
|
}
|
|
__result
|
|
}
|
|
}
|
|
}
|
|
#[forbid(unaligned_references, safe_packed_borrows)]
|
|
fn __assert_not_repr_packed<T, U>(this: &Struct<T, U>) {
|
|
let _ = &this.pinned;
|
|
let _ = &this.unpinned;
|
|
}
|
|
#[allow(missing_debug_implementations)]
|
|
struct __Struct<'pin, T, U> {
|
|
__pin_project_use_generics: _pin_project::__private::AlwaysUnpin<
|
|
'pin,
|
|
(
|
|
_pin_project::__private::PhantomData<T>,
|
|
_pin_project::__private::PhantomData<U>,
|
|
),
|
|
>,
|
|
__field0: T,
|
|
}
|
|
impl<'pin, T, U> _pin_project::__private::Unpin for Struct<T, U> where
|
|
__Struct<'pin, T, U>: _pin_project::__private::Unpin
|
|
{
|
|
}
|
|
#[doc(hidden)]
|
|
unsafe impl<'pin, T, U> _pin_project::UnsafeUnpin for Struct<T, U> where
|
|
__Struct<'pin, T, U>: _pin_project::__private::Unpin
|
|
{
|
|
}
|
|
trait StructMustNotImplDrop {}
|
|
#[allow(clippy::drop_bounds, drop_bounds)]
|
|
impl<T: _pin_project::__private::Drop> StructMustNotImplDrop for T {}
|
|
impl<T, U> StructMustNotImplDrop for Struct<T, U> {}
|
|
#[doc(hidden)]
|
|
impl<T, U> _pin_project::__private::PinnedDrop for Struct<T, U> {
|
|
unsafe fn drop(self: _pin_project::__private::Pin<&mut Self>) {}
|
|
}
|
|
};
|
|
fn main() {}
|