use pin_project::pin_project; #[pin(__private(project = EnumProj, project_ref = EnumProjRef))] enum Enum { Struct { #[pin] pinned: T, unpinned: U }, Tuple(#[pin] T, U), Unit, } #[allow( dead_code, deprecated, explicit_outlives_requirements, single_use_lifetimes, unreachable_pub, unused_tuple_struct_fields, clippy::unknown_clippy_lints, clippy::absolute_paths, clippy::min_ident_chars, clippy::pattern_type_mismatch, clippy::pub_with_shorthand, clippy::redundant_pub_crate, clippy::single_char_lifetime_names, clippy::type_repetition_in_bounds, clippy::missing_docs_in_private_items, clippy::mut_mut )] enum EnumProj<'pin, T, U> where Enum: 'pin, { Struct { pinned: ::pin_project::__private::Pin<&'pin mut (T)>, unpinned: &'pin mut (U), }, Tuple(::pin_project::__private::Pin<&'pin mut (T)>, &'pin mut (U)), Unit, } #[allow( dead_code, deprecated, explicit_outlives_requirements, single_use_lifetimes, unreachable_pub, unused_tuple_struct_fields, clippy::unknown_clippy_lints, clippy::absolute_paths, clippy::min_ident_chars, clippy::pattern_type_mismatch, clippy::pub_with_shorthand, clippy::redundant_pub_crate, clippy::single_char_lifetime_names, clippy::type_repetition_in_bounds, clippy::missing_docs_in_private_items, clippy::ref_option_ref )] enum EnumProjRef<'pin, T, U> where Enum: 'pin, { Struct { pinned: ::pin_project::__private::Pin<&'pin (T)>, unpinned: &'pin (U) }, Tuple(::pin_project::__private::Pin<&'pin (T)>, &'pin (U)), Unit, } #[allow( unused_qualifications, deprecated, explicit_outlives_requirements, single_use_lifetimes, unreachable_pub, unused_tuple_struct_fields, clippy::unknown_clippy_lints, clippy::absolute_paths, clippy::min_ident_chars, clippy::pattern_type_mismatch, clippy::pub_with_shorthand, clippy::redundant_pub_crate, clippy::single_char_lifetime_names, clippy::type_repetition_in_bounds, clippy::needless_lifetimes, clippy::semicolon_if_nothing_returned, clippy::use_self, clippy::used_underscore_binding )] const _: () = { #[allow(unused_extern_crates)] extern crate pin_project as _pin_project; impl Enum { #[allow(dead_code)] #[inline] fn project<'pin>( self: _pin_project::__private::Pin<&'pin mut Self>, ) -> EnumProj<'pin, T, U> { unsafe { match self.get_unchecked_mut() { Self::Struct { pinned, unpinned } => { EnumProj::Struct { pinned: _pin_project::__private::Pin::new_unchecked(pinned), unpinned, } } Self::Tuple(_0, _1) => { EnumProj::Tuple( _pin_project::__private::Pin::new_unchecked(_0), _1, ) } Self::Unit => EnumProj::Unit, } } } #[allow(dead_code)] #[allow(clippy::missing_const_for_fn)] #[inline] fn project_ref<'pin>( self: _pin_project::__private::Pin<&'pin Self>, ) -> EnumProjRef<'pin, T, U> { unsafe { match self.get_ref() { Self::Struct { pinned, unpinned } => { EnumProjRef::Struct { pinned: _pin_project::__private::Pin::new_unchecked(pinned), unpinned, } } Self::Tuple(_0, _1) => { EnumProjRef::Tuple( _pin_project::__private::Pin::new_unchecked(_0), _1, ) } Self::Unit => EnumProjRef::Unit, } } } } #[allow(missing_debug_implementations, unnameable_types)] struct __Enum<'pin, T, U> { __pin_project_use_generics: _pin_project::__private::AlwaysUnpin< 'pin, ( _pin_project::__private::PhantomData, _pin_project::__private::PhantomData, ), >, __field0: T, __field1: T, } impl<'pin, T, U> _pin_project::__private::Unpin for Enum where _pin_project::__private::PinnedFieldsOf< __Enum<'pin, T, U>, >: _pin_project::__private::Unpin, {} #[doc(hidden)] unsafe impl<'pin, T, U> _pin_project::UnsafeUnpin for Enum where _pin_project::__private::PinnedFieldsOf< __Enum<'pin, T, U>, >: _pin_project::__private::Unpin, {} trait EnumMustNotImplDrop {} #[allow(clippy::drop_bounds, drop_bounds)] impl EnumMustNotImplDrop for T {} impl EnumMustNotImplDrop for Enum {} #[doc(hidden)] impl _pin_project::__private::PinnedDrop for Enum { unsafe fn drop(self: _pin_project::__private::Pin<&mut Self>) {} } }; fn main() {}