更新libclamav库1.0.0版本

This commit is contained in:
2023-01-14 18:28:39 +08:00
parent b879ee0b2e
commit 45fe15f472
8531 changed files with 1222046 additions and 177272 deletions

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# Examples and generated code of each feature of pin-project
### Basic usage of `#[pin_project]` on structs
- [example](struct-default.rs)
- [generated code](struct-default-expanded.rs)
### Basic usage of `#[pin_project]` on enums
- [example](enum-default.rs)
- [generated code](enum-default-expanded.rs)
### Manual implementation of `Unpin` by `UnsafeUnpin`
- [example](unsafe_unpin.rs)
- [generated code](unsafe_unpin-expanded.rs)
- [`UnsafeUnpin` documentation](https://docs.rs/pin-project/1/pin_project/trait.UnsafeUnpin.html)
### Manual implementation of `Drop` by `#[pinned_drop]`
- [example](pinned_drop.rs)
- [generated code](pinned_drop-expanded.rs)
- [`#[pinned_drop]` documentation](https://docs.rs/pin-project/1/pin_project/attr.pinned_drop.html)
### `project_replace()` method
- [example](project_replace.rs)
- [generated code](project_replace-expanded.rs)
- [`project_replace()` documentation](https://docs.rs/pin-project/1/pin_project/attr.pin_project.html#project_replace-method)
### Ensure `!Unpin` by `#[pin_project(!Unpin)]`
- [example](not_unpin.rs)
- [generated code](not_unpin-expanded.rs)
- [`!Unpin` documentation](https://docs.rs/pin-project/1/pin_project/attr.pin_project.html#unpin)
Note: These generated code examples are the little simplified version of the
actual generated code. See [expansion tests](../tests#expansion-tests-expand-expandtestrs) if you
want to see the exact version of the actual generated code.

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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, unknown_lints, renamed_and_removed_lints)]
#![allow(
clippy::needless_lifetimes,
clippy::just_underscores_and_digits,
clippy::used_underscore_binding
)]
use pin_project::pin_project;
// #[pin_project(project = EnumProj)]
enum Enum<T, U> {
Pinned(/* #[pin] */ T),
Unpinned(U),
}
enum EnumProj<'pin, T, U>
where
Enum<T, U>: 'pin,
{
Pinned(::pin_project::__private::Pin<&'pin mut (T)>),
Unpinned(&'pin mut (U)),
}
const _: () = {
// When `#[pin_project]` is used on enums, only named projection types and
// methods are generated because there is no way to access variants of
// projected types without naming it.
// (When `#[pin_project]` is used on structs, both methods are always generated.)
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() {
Self::Pinned(_0) => {
EnumProj::Pinned(::pin_project::__private::Pin::new_unchecked(_0))
}
Self::Unpinned(_0) => EnumProj::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
{
}
// A dummy impl of `UnsafeUnpin`, to ensure that the user cannot implement it.
#[doc(hidden)]
unsafe impl<'pin, T, U> ::pin_project::UnsafeUnpin for Enum<T, U> where
__Enum<'pin, T, U>: ::pin_project::__private::Unpin
{
}
// Ensure that enum does not implement `Drop`.
//
// See ./struct-default-expanded.rs for details.
trait EnumMustNotImplDrop {}
#[allow(clippy::drop_bounds, drop_bounds)]
impl<T: ::pin_project::__private::Drop> EnumMustNotImplDrop for T {}
impl<T, U> EnumMustNotImplDrop for Enum<T, U> {}
// A dummy impl of `PinnedDrop`, to ensure that users don't accidentally
// write a non-functional `PinnedDrop` impls.
#[doc(hidden)]
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() {}

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// See ./enum-default-expanded.rs for generated code.
#![allow(dead_code)]
use pin_project::pin_project;
#[pin_project(project = EnumProj)]
enum Enum<T, U> {
Pinned(#[pin] T),
Unpinned(U),
}
fn main() {}

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// Original code (./not_unpin.rs):
//
// ```rust
// #![allow(dead_code)]
//
// use pin_project::pin_project;
//
// #[pin_project(!Unpin)]
// pub struct Struct<T, U> {
// #[pin]
// pinned: T,
// unpinned: U,
// }
//
// fn main() {
// fn _is_unpin<T: Unpin>() {}
// // _is_unpin::<Struct<(), ()>>(); //~ ERROR `std::marker::PhantomPinned` cannot be unpinned
// }
// ```
#![allow(dead_code, unused_imports, unused_parens, unknown_lints, renamed_and_removed_lints)]
#![allow(clippy::needless_lifetimes)]
use pin_project::pin_project;
// #[pin_project(!Unpin)]
pub struct Struct<T, U> {
// #[pin]
pinned: T,
unpinned: U,
}
const _: () = {
pub(crate) struct __StructProjection<'pin, T, U>
where
Struct<T, U>: 'pin,
{
pinned: ::pin_project::__private::Pin<&'pin mut (T)>,
unpinned: &'pin mut (U),
}
pub(crate) struct __StructProjectionRef<'pin, T, U>
where
Struct<T, U>: 'pin,
{
pinned: ::pin_project::__private::Pin<&'pin (T)>,
unpinned: &'pin (U),
}
impl<T, U> Struct<T, U> {
pub(crate) fn project<'pin>(
self: ::pin_project::__private::Pin<&'pin mut Self>,
) -> __StructProjection<'pin, T, U> {
unsafe {
let Self { pinned, unpinned } = self.get_unchecked_mut();
__StructProjection {
pinned: ::pin_project::__private::Pin::new_unchecked(pinned),
unpinned,
}
}
}
pub(crate) fn project_ref<'pin>(
self: ::pin_project::__private::Pin<&'pin Self>,
) -> __StructProjectionRef<'pin, T, U> {
unsafe {
let Self { pinned, unpinned } = self.get_ref();
__StructProjectionRef {
pinned: ::pin_project::__private::Pin::new_unchecked(pinned),
unpinned,
}
}
}
}
// Ensure that it's impossible to use pin projections on a #[repr(packed)]
// struct.
//
// See ./struct-default-expanded.rs and https://github.com/taiki-e/pin-project/pull/34
// for details.
#[forbid(unaligned_references, safe_packed_borrows)]
fn __assert_not_repr_packed<T, U>(this: &Struct<T, U>) {
let _ = &this.pinned;
let _ = &this.unpinned;
}
// Create `Unpin` impl that has trivial `Unpin` bounds.
//
// See https://github.com/taiki-e/pin-project/issues/102#issuecomment-540472282
// for details.
impl<'pin, T, U> ::pin_project::__private::Unpin for Struct<T, U> where
::pin_project::__private::Wrapper<'pin, ::pin_project::__private::PhantomPinned>:
::pin_project::__private::Unpin
{
}
// A dummy impl of `UnsafeUnpin`, to ensure that the user cannot implement it.
//
// To ensure that users don't accidentally write a non-functional `UnsafeUnpin`
// impls, we emit one ourselves. If the user ends up writing an `UnsafeUnpin`
// impl, they'll get a "conflicting implementations of trait" error when
// coherence checks are run.
#[doc(hidden)]
unsafe impl<'pin, T, U> ::pin_project::UnsafeUnpin for Struct<T, U> where
::pin_project::__private::Wrapper<'pin, ::pin_project::__private::PhantomPinned>:
::pin_project::__private::Unpin
{
}
// Ensure that struct does not implement `Drop`.
//
// See ./struct-default-expanded.rs for details.
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> {}
// A dummy impl of `PinnedDrop`, to ensure that users don't accidentally
// write a non-functional `PinnedDrop` impls.
#[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() {
fn _is_unpin<T: Unpin>() {}
// _is_unpin::<Struct<(), ()>>(); //~ ERROR `std::marker::PhantomPinned` cannot be unpinned
}

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// See ./not_unpin-expanded.rs for generated code.
#![allow(dead_code)]
use pin_project::pin_project;
#[pin_project(!Unpin)]
pub struct Struct<T, U> {
#[pin]
pinned: T,
unpinned: U,
}
fn main() {
fn _is_unpin<T: Unpin>() {}
// _is_unpin::<Struct<(), ()>>(); //~ ERROR `std::marker::PhantomPinned` cannot be unpinned
}

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// Original code (./pinned_drop.rs):
//
// ```rust
// #![allow(dead_code)]
//
// use std::pin::Pin;
//
// use pin_project::{pin_project, pinned_drop};
//
// #[pin_project(PinnedDrop)]
// pub struct Struct<'a, T> {
// was_dropped: &'a mut bool,
// #[pin]
// field: T,
// }
//
// #[pinned_drop]
// fn drop_Struct<T>(mut this: Pin<&mut Struct<'_, T>>) {
// **this.project().was_dropped = true;
// }
//
// fn main() {}
// ```
#![allow(dead_code, unused_imports, unused_parens, unknown_lints, renamed_and_removed_lints)]
#![allow(clippy::needless_lifetimes, clippy::mut_mut)]
use std::pin::Pin;
use pin_project::{pin_project, pinned_drop};
// #[pin_project(PinnedDrop)]
pub struct Struct<'a, T> {
was_dropped: &'a mut bool,
// #[pin]
field: T,
}
const _: () = {
pub(crate) struct __StructProjection<'pin, 'a, T>
where
Struct<'a, T>: 'pin,
{
was_dropped: &'pin mut (&'a mut bool),
field: ::pin_project::__private::Pin<&'pin mut (T)>,
}
pub(crate) struct __StructProjectionRef<'pin, 'a, T>
where
Struct<'a, T>: 'pin,
{
was_dropped: &'pin (&'a mut bool),
field: ::pin_project::__private::Pin<&'pin (T)>,
}
impl<'a, T> Struct<'a, T> {
pub(crate) fn project<'pin>(
self: ::pin_project::__private::Pin<&'pin mut Self>,
) -> __StructProjection<'pin, 'a, T> {
unsafe {
let Self { was_dropped, field } = self.get_unchecked_mut();
__StructProjection {
was_dropped,
field: ::pin_project::__private::Pin::new_unchecked(field),
}
}
}
pub(crate) fn project_ref<'pin>(
self: ::pin_project::__private::Pin<&'pin Self>,
) -> __StructProjectionRef<'pin, 'a, T> {
unsafe {
let Self { was_dropped, field } = self.get_ref();
__StructProjectionRef {
was_dropped,
field: ::pin_project::__private::Pin::new_unchecked(field),
}
}
}
}
// Ensure that it's impossible to use pin projections on a #[repr(packed)]
// struct.
//
// See ./struct-default-expanded.rs and https://github.com/taiki-e/pin-project/pull/34
// for details.
#[forbid(unaligned_references, safe_packed_borrows)]
fn __assert_not_repr_packed<'a, T>(this: &Struct<'a, T>) {
let _ = &this.was_dropped;
let _ = &this.field;
}
impl<'a, T> ::pin_project::__private::Drop for Struct<'a, T> {
fn drop(&mut self) {
// Safety - we're in 'drop', so we know that 'self' will
// never move again.
let pinned_self = unsafe { ::pin_project::__private::Pin::new_unchecked(self) };
// We call `pinned_drop` only once. Since `PinnedDrop::drop`
// is an unsafe method and a private API, it is never called again in safe
// code *unless the user uses a maliciously crafted macro*.
unsafe {
::pin_project::__private::PinnedDrop::drop(pinned_self);
}
}
}
// Automatically create the appropriate conditional `Unpin` implementation.
//
// See ./struct-default-expanded.rs and https://github.com/taiki-e/pin-project/pull/53.
// for details.
pub struct __Struct<'pin, 'a, T> {
__pin_project_use_generics: ::pin_project::__private::AlwaysUnpin<'pin, (T)>,
__field0: T,
__lifetime0: &'a (),
}
impl<'pin, 'a, T> ::pin_project::__private::Unpin for Struct<'a, T> where
__Struct<'pin, 'a, T>: ::pin_project::__private::Unpin
{
}
// A dummy impl of `UnsafeUnpin`, to ensure that the user cannot implement it.
#[doc(hidden)]
unsafe impl<'pin, 'a, T> ::pin_project::UnsafeUnpin for Struct<'a, T> where
__Struct<'pin, 'a, T>: ::pin_project::__private::Unpin
{
}
};
// Implementing `PinnedDrop::drop` is safe, but calling it is not safe.
// This is because destructors can be called multiple times in safe code and
// [double dropping is unsound](https://github.com/rust-lang/rust/pull/62360).
//
// Ideally, it would be desirable to be able to forbid manual calls in
// the same way as `Drop::drop`, but the library cannot do it. So, by using
// macros and replacing them with private traits, we prevent users from
// calling `PinnedDrop::drop`.
//
// Users can implement [`Drop`] safely using `#[pinned_drop]` and can drop a
// type that implements `PinnedDrop` using the [`drop`] function safely.
// **Do not call or implement this trait directly.**
#[doc(hidden)]
impl<T> ::pin_project::__private::PinnedDrop for Struct<'_, T> {
// Since calling it twice on the same object would be UB,
// this method is unsafe.
unsafe fn drop(self: Pin<&mut Self>) {
#[allow(clippy::needless_pass_by_value)]
fn __drop_inner<T>(__self: Pin<&mut Struct<'_, T>>) {
// A dummy `__drop_inner` function to prevent users call outer `__drop_inner`.
fn __drop_inner() {}
**__self.project().was_dropped = true;
}
__drop_inner(self);
}
}
fn main() {}

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// See ./pinned_drop-expanded.rs for generated code.
#![allow(dead_code)]
use std::pin::Pin;
use pin_project::{pin_project, pinned_drop};
#[pin_project(PinnedDrop)]
pub struct Struct<'a, T> {
was_dropped: &'a mut bool,
#[pin]
field: T,
}
#[pinned_drop]
impl<T> PinnedDrop for Struct<'_, T> {
fn drop(self: Pin<&mut Self>) {
**self.project().was_dropped = true;
}
}
fn main() {}

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// Original code (./struct-default.rs):
//
// ```rust
// #![allow(dead_code)]
//
// use pin_project::pin_project;
//
// #[pin_project(project_replace)]
// struct Struct<T, U> {
// #[pin]
// pinned: T,
// unpinned: U,
// }
//
// fn main() {}
// ```
#![allow(dead_code, unused_imports, unused_parens, unknown_lints, renamed_and_removed_lints)]
#![allow(clippy::needless_lifetimes)]
use pin_project::pin_project;
// #[pin_project(project_replace)]
struct Struct<T, U> {
// #[pin]
pinned: T,
unpinned: U,
}
const _: () = {
struct __StructProjection<'pin, T, U>
where
Struct<T, U>: 'pin,
{
pinned: ::pin_project::__private::Pin<&'pin mut (T)>,
unpinned: &'pin mut (U),
}
struct __StructProjectionRef<'pin, T, U>
where
Struct<T, U>: 'pin,
{
pinned: ::pin_project::__private::Pin<&'pin (T)>,
unpinned: &'pin (U),
}
struct __StructProjectionOwned<T, U> {
pinned: ::pin_project::__private::PhantomData<T>,
unpinned: U,
}
impl<T, U> Struct<T, U> {
fn project<'pin>(
self: ::pin_project::__private::Pin<&'pin mut Self>,
) -> __StructProjection<'pin, T, U> {
unsafe {
let Self { pinned, unpinned } = self.get_unchecked_mut();
__StructProjection {
pinned: ::pin_project::__private::Pin::new_unchecked(pinned),
unpinned,
}
}
}
fn project_ref<'pin>(
self: ::pin_project::__private::Pin<&'pin Self>,
) -> __StructProjectionRef<'pin, T, U> {
unsafe {
let Self { pinned, unpinned } = self.get_ref();
__StructProjectionRef {
pinned: ::pin_project::__private::Pin::new_unchecked(pinned),
unpinned,
}
}
}
fn project_replace(
self: ::pin_project::__private::Pin<&mut Self>,
__replacement: Self,
) -> __StructProjectionOwned<T, U> {
unsafe {
let __self_ptr: *mut Self = self.get_unchecked_mut();
// Destructors will run in reverse order, so next create a guard to overwrite
// `self` with the replacement value without calling destructors.
let __guard =
::pin_project::__private::UnsafeOverwriteGuard::new(__self_ptr, __replacement);
let Self { pinned, unpinned } = &mut *__self_ptr;
// First, extract all the unpinned fields
let __result = __StructProjectionOwned {
pinned: ::pin_project::__private::PhantomData,
unpinned: ::pin_project::__private::ptr::read(unpinned),
};
// Now create guards to drop all the pinned fields
//
// Due to a compiler bug (https://github.com/rust-lang/rust/issues/47949)
// this must be in its own scope, or else `__result` will not be dropped
// if any of the destructors panic.
{
let __guard = ::pin_project::__private::UnsafeDropInPlaceGuard::new(pinned);
}
// Finally, return the result
__result
}
}
}
// Ensure that it's impossible to use pin projections on a #[repr(packed)]
// struct.
//
// See ./struct-default-expanded.rs and https://github.com/taiki-e/pin-project/pull/34
// for details.
#[forbid(unaligned_references, safe_packed_borrows)]
fn __assert_not_repr_packed<T, U>(this: &Struct<T, U>) {
let _ = &this.pinned;
let _ = &this.unpinned;
}
// 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 __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
{
}
// A dummy impl of `UnsafeUnpin`, to ensure that the user cannot implement it.
#[doc(hidden)]
unsafe impl<'pin, T, U> ::pin_project::UnsafeUnpin for Struct<T, U> where
__Struct<'pin, T, U>: ::pin_project::__private::Unpin
{
}
// Ensure that struct does not implement `Drop`.
//
// See ./struct-default-expanded.rs for details.
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> {}
// A dummy impl of `PinnedDrop`, to ensure that users don't accidentally
// write a non-functional `PinnedDrop` impls.
#[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() {}

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// See ./struct-default-expanded.rs for generated code.
#![allow(dead_code)]
use pin_project::pin_project;
#[pin_project(project_replace)]
struct Struct<T, U> {
#[pin]
pinned: T,
unpinned: U,
}
fn main() {}

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// Original code (./struct-default.rs):
//
// ```rust
// #![allow(dead_code)]
//
// use pin_project::pin_project;
//
// #[pin_project]
// struct Struct<T, U> {
// #[pin]
// pinned: T,
// unpinned: U,
// }
//
// fn main() {}
// ```
#![allow(dead_code, unused_imports, unused_parens, unknown_lints, renamed_and_removed_lints)]
#![allow(clippy::needless_lifetimes)]
use pin_project::pin_project;
// #[pin_project]
struct Struct<T, U> {
// #[pin]
pinned: T,
unpinned: U,
}
const _: () = {
struct __StructProjection<'pin, T, U>
where
Struct<T, U>: 'pin,
{
pinned: ::pin_project::__private::Pin<&'pin mut (T)>,
unpinned: &'pin mut (U),
}
struct __StructProjectionRef<'pin, T, U>
where
Struct<T, U>: 'pin,
{
pinned: ::pin_project::__private::Pin<&'pin (T)>,
unpinned: &'pin (U),
}
impl<T, U> Struct<T, U> {
fn project<'pin>(
self: ::pin_project::__private::Pin<&'pin mut Self>,
) -> __StructProjection<'pin, T, U> {
unsafe {
let Self { pinned, unpinned } = self.get_unchecked_mut();
__StructProjection {
pinned: ::pin_project::__private::Pin::new_unchecked(pinned),
unpinned,
}
}
}
fn project_ref<'pin>(
self: ::pin_project::__private::Pin<&'pin Self>,
) -> __StructProjectionRef<'pin, T, U> {
unsafe {
let Self { pinned, unpinned } = self.get_ref();
__StructProjectionRef {
pinned: ::pin_project::__private::Pin::new_unchecked(pinned),
unpinned,
}
}
}
}
// Ensure that it's impossible to use pin projections on a #[repr(packed)]
// struct.
//
// Taking a reference to a packed field is UB, and applying
// `#[forbid(unaligned_references)]` makes sure that doing this is a hard error.
//
// If the struct ends up having #[repr(packed)] applied somehow,
// this will generate an (unfriendly) error message. Under all reasonable
// circumstances, we'll detect the #[repr(packed)] attribute, and generate
// a much nicer error above.
//
// See https://github.com/taiki-e/pin-project/pull/34 for more details.
#[forbid(unaligned_references, safe_packed_borrows)]
fn __assert_not_repr_packed<T, U>(this: &Struct<T, U>) {
let _ = &this.pinned;
let _ = &this.unpinned;
}
// Automatically create the appropriate conditional `Unpin` implementation.
//
// Basically this is equivalent to the following code:
//
// ```rust
// impl<T, U> Unpin for Struct<T, U> where T: Unpin {}
// ```
//
// However, if struct is public and there is a private type field,
// this would cause an E0446 (private type in public interface).
//
// When RFC 2145 is implemented (rust-lang/rust#48054),
// this will become a lint, rather then a hard error.
//
// As a workaround for this, we generate a new struct, containing all of
// the pinned fields from our #[pin_project] type. This struct is declared
// within a function, which makes it impossible to be named by user code.
// This guarantees that it will use the default auto-trait impl for Unpin -
// that is, it will implement Unpin iff all of its fields implement Unpin.
// This type can be safely declared as 'public', satisfying the privacy
// checker without actually allowing user code to access it.
//
// This allows users to apply the #[pin_project] attribute to types
// regardless of the privacy of the types of their fields.
//
// See also https://github.com/taiki-e/pin-project/pull/53.
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
{
}
// A dummy impl of `UnsafeUnpin`, to ensure that the user cannot implement it.
//
// To ensure that users don't accidentally write a non-functional `UnsafeUnpin`
// impls, we emit one ourselves. If the user ends up writing an `UnsafeUnpin`
// impl, they'll get a "conflicting implementations of trait" error when
// coherence checks are run.
#[doc(hidden)]
unsafe impl<'pin, T, U> ::pin_project::UnsafeUnpin for Struct<T, U> where
__Struct<'pin, T, U>: ::pin_project::__private::Unpin
{
}
// Ensure that struct does not implement `Drop`.
//
// If you attempt to provide an Drop impl, the blanket impl will
// then apply to your type, causing a compile-time error due to
// the conflict with the second impl.
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> {}
// A dummy impl of `PinnedDrop`, to ensure that users don't accidentally
// write a non-functional `PinnedDrop` impls.
#[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() {}

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// See ./struct-default-expanded.rs for generated code.
#![allow(dead_code)]
use pin_project::pin_project;
#[pin_project]
struct Struct<T, U> {
#[pin]
pinned: T,
unpinned: U,
}
fn main() {}

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// Original code (./unsafe_unpin.rs):
//
// ```rust
// #![allow(dead_code)]
//
// use pin_project::{pin_project, UnsafeUnpin};
//
// #[pin_project(UnsafeUnpin)]
// pub struct Struct<T, U> {
// #[pin]
// pinned: T,
// unpinned: U,
// }
//
// unsafe impl<T: Unpin, U> UnsafeUnpin for Struct<T, U> {}
//
// fn main() {}
// ```
#![allow(dead_code, unused_imports, unused_parens, unknown_lints, renamed_and_removed_lints)]
#![allow(clippy::needless_lifetimes)]
use pin_project::{pin_project, UnsafeUnpin};
// #[pin_project(UnsafeUnpin)]
pub struct Struct<T, U> {
// #[pin]
pinned: T,
unpinned: U,
}
const _: () = {
pub(crate) struct __StructProjection<'pin, T, U>
where
Struct<T, U>: 'pin,
{
pinned: ::pin_project::__private::Pin<&'pin mut (T)>,
unpinned: &'pin mut (U),
}
pub(crate) struct __StructProjectionRef<'pin, T, U>
where
Struct<T, U>: 'pin,
{
pinned: ::pin_project::__private::Pin<&'pin (T)>,
unpinned: &'pin (U),
}
impl<T, U> Struct<T, U> {
pub(crate) fn project<'pin>(
self: ::pin_project::__private::Pin<&'pin mut Self>,
) -> __StructProjection<'pin, T, U> {
unsafe {
let Self { pinned, unpinned } = self.get_unchecked_mut();
__StructProjection {
pinned: ::pin_project::__private::Pin::new_unchecked(pinned),
unpinned,
}
}
}
pub(crate) fn project_ref<'pin>(
self: ::pin_project::__private::Pin<&'pin Self>,
) -> __StructProjectionRef<'pin, T, U> {
unsafe {
let Self { pinned, unpinned } = self.get_ref();
__StructProjectionRef {
pinned: ::pin_project::__private::Pin::new_unchecked(pinned),
unpinned,
}
}
}
}
// Ensure that it's impossible to use pin projections on a #[repr(packed)]
// struct.
//
// See ./struct-default-expanded.rs and https://github.com/taiki-e/pin-project/pull/34
// for details.
#[forbid(unaligned_references, safe_packed_borrows)]
fn __assert_not_repr_packed<T, U>(this: &Struct<T, U>) {
let _ = &this.pinned;
let _ = &this.unpinned;
}
// Implement `Unpin` via `UnsafeUnpin`.
impl<'pin, T, U> ::pin_project::__private::Unpin for Struct<T, U> where
::pin_project::__private::Wrapper<'pin, Self>: ::pin_project::UnsafeUnpin
{
}
// Ensure that struct does not implement `Drop`.
//
// See ./struct-default-expanded.rs for details.
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> {}
// A dummy impl of `PinnedDrop`, to ensure that users don't accidentally
// write a non-functional `PinnedDrop` impls.
#[doc(hidden)]
impl<T, U> ::pin_project::__private::PinnedDrop for Struct<T, U> {
unsafe fn drop(self: ::pin_project::__private::Pin<&mut Self>) {}
}
};
unsafe impl<T: Unpin, U> UnsafeUnpin for Struct<T, U> {}
fn main() {}

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// See ./unsafe_unpin-expanded.rs for generated code.
#![allow(dead_code)]
use pin_project::{pin_project, UnsafeUnpin};
#[pin_project(UnsafeUnpin)]
pub struct Struct<T, U> {
#[pin]
pinned: T,
unpinned: U,
}
unsafe impl<T: Unpin, U> UnsafeUnpin for Struct<T, U> {}
fn main() {}