async_chunked_transfer 1.4.0

// Copyright 2015 The tiny-http Contributors
// Copyright 2015 The rust-chunked-transfer Contributors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//	http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

mod decoder;
pub use crate::decoder::Decoder;

mod encoder;
pub use crate::encoder::Encoder;

use std::task::{Context, Poll};
pub(crate) fn poll_fn<T, F>(f: F) -> PollFn<F>
where
    F: FnMut(&mut Context<'_>) -> Poll<T>,
{
    PollFn { f }
}

pub(crate) struct PollFn<F> {
    f: F,
}

impl<F> Unpin for PollFn<F> {}

impl<T, F> std::future::Future for PollFn<F>
where
    F: FnMut(&mut Context<'_>) -> Poll<T>,
{
    type Output = T;

    fn poll(mut self: std::pin::Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<T> {
        (&mut self.f)(cx)
    }
}