use auto_enums::enum_derive;
enum Enum<A, B> {
A(A),
B(B),
}
impl<A, B, Item> ::futures::sink::Sink<Item> for Enum<A, B>
where
A: ::futures::sink::Sink<Item>,
B: ::futures::sink::Sink<Item, Error = <A as ::futures::sink::Sink<Item>>::Error>,
{
type Error = <A as ::futures::sink::Sink<Item>>::Error;
#[inline]
fn poll_ready(
self: ::core::pin::Pin<&mut Self>,
cx: &mut ::core::task::Context<'_>,
) -> ::core::task::Poll<::core::result::Result<(), Self::Error>> {
unsafe {
match self.get_unchecked_mut() {
Enum::A(x) => {
::futures::sink::Sink::poll_ready(
::core::pin::Pin::new_unchecked(x),
cx,
)
}
Enum::B(x) => {
::futures::sink::Sink::poll_ready(
::core::pin::Pin::new_unchecked(x),
cx,
)
}
}
}
}
#[inline]
fn start_send(
self: ::core::pin::Pin<&mut Self>,
item: Item,
) -> ::core::result::Result<(), Self::Error> {
unsafe {
match self.get_unchecked_mut() {
Enum::A(x) => {
::futures::sink::Sink::start_send(
::core::pin::Pin::new_unchecked(x),
item,
)
}
Enum::B(x) => {
::futures::sink::Sink::start_send(
::core::pin::Pin::new_unchecked(x),
item,
)
}
}
}
}
#[inline]
fn poll_flush(
self: ::core::pin::Pin<&mut Self>,
cx: &mut ::core::task::Context<'_>,
) -> ::core::task::Poll<::core::result::Result<(), Self::Error>> {
unsafe {
match self.get_unchecked_mut() {
Enum::A(x) => {
::futures::sink::Sink::poll_flush(
::core::pin::Pin::new_unchecked(x),
cx,
)
}
Enum::B(x) => {
::futures::sink::Sink::poll_flush(
::core::pin::Pin::new_unchecked(x),
cx,
)
}
}
}
}
#[inline]
fn poll_close(
self: ::core::pin::Pin<&mut Self>,
cx: &mut ::core::task::Context<'_>,
) -> ::core::task::Poll<::core::result::Result<(), Self::Error>> {
unsafe {
match self.get_unchecked_mut() {
Enum::A(x) => {
::futures::sink::Sink::poll_close(
::core::pin::Pin::new_unchecked(x),
cx,
)
}
Enum::B(x) => {
::futures::sink::Sink::poll_close(
::core::pin::Pin::new_unchecked(x),
cx,
)
}
}
}
}
}
impl<A, B> ::core::marker::Unpin for Enum<A, B>
where
A: ::core::marker::Unpin,
B: ::core::marker::Unpin,
{}
const _: () = {
trait MustNotImplDrop {}
#[allow(clippy::drop_bounds, drop_bounds)]
impl<T: ::core::ops::Drop> MustNotImplDrop for T {}
impl<A, B> MustNotImplDrop for Enum<A, B> {}
};
fn main() {}