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// Original code (./enum-default.rs):
//
// ```rust
// #![allow(dead_code)]
//
// use pin_project::pin_project;
//
// #[pin_project(project = EnumProj)]
// enum Enum<T, U> {
// Pinned(#[pin] T),
// Unpinned(U),
// }
//
// fn main() {}
// ```
#![allow(dead_code, unused_imports, unused_parens)]
#![allow(clippy::just_underscores_and_digits)]
use pin_project::pin_project;
enum Enum<T, U> {
Pinned(/* #[pin] */ T),
Unpinned(U),
}
#[allow(dead_code)]
#[allow(single_use_lifetimes)]
#[allow(clippy::mut_mut)]
#[allow(clippy::type_repetition_in_bounds)]
enum EnumProj<'pin, T, U>
where
Enum<T, U>: 'pin,
{
Pinned(::pin_project::__private::Pin<&'pin mut (T)>),
Unpinned(&'pin mut (U)),
}
#[doc(hidden)]
#[allow(dead_code)]
#[allow(single_use_lifetimes)]
#[allow(clippy::type_repetition_in_bounds)]
enum __EnumProjectionRef<'pin, T, U>
where
Enum<T, U>: 'pin,
{
Pinned(::pin_project::__private::Pin<&'pin (T)>),
Unpinned(&'pin (U)),
}
#[doc(hidden)]
#[allow(non_upper_case_globals)]
#[allow(single_use_lifetimes)]
#[allow(clippy::used_underscore_binding)]
const _: () = {
impl<T, U> Enum<T, U> {
fn project<'pin>(
self: ::pin_project::__private::Pin<&'pin mut Self>,
) -> EnumProj<'pin, T, U> {
unsafe {
match self.get_unchecked_mut() {
Enum::Pinned(_0) => {
EnumProj::Pinned(::pin_project::__private::Pin::new_unchecked(_0))
}
Enum::Unpinned(_0) => EnumProj::Unpinned(_0),
}
}
}
fn project_ref<'pin>(
self: ::pin_project::__private::Pin<&'pin Self>,
) -> __EnumProjectionRef<'pin, T, U> {
unsafe {
match self.get_ref() {
Enum::Pinned(_0) => __EnumProjectionRef::Pinned(
::pin_project::__private::Pin::new_unchecked(_0),
),
Enum::Unpinned(_0) => __EnumProjectionRef::Unpinned(_0),
}
}
}
}
// Automatically create the appropriate conditional `Unpin` implementation.
//
// See ./struct-default-expanded.rs and https://github.com/taiki-e/pin-project/pull/53.
// for details.
struct __Enum<'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 Enum<T, U> where
__Enum<'pin, T, U>: ::pin_project::__private::Unpin
{
}
unsafe impl<T, U> ::pin_project::UnsafeUnpin for Enum<T, U> {}
// Ensure that enum does not implement `Drop`.
//
// See ./struct-default-expanded.rs for details.
trait EnumMustNotImplDrop {}
#[allow(clippy::drop_bounds)]
impl<T: ::pin_project::__private::Drop> EnumMustNotImplDrop for T {}
impl<T, U> EnumMustNotImplDrop for Enum<T, U> {}
impl<T, U> ::pin_project::__private::PinnedDrop for Enum<T, U> {
unsafe fn drop(self: ::pin_project::__private::Pin<&mut Self>) {}
}
// We don't need to check for `#[repr(packed)]`,
// since it does not apply to enums.
};
fn main() {}
|
