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macro_rules! decoder {
    ($(#[$attr:meta])* $name:ident) => {
        $(#[$attr])*
        #[pin_project::pin_project]
        #[derive(Debug)]
        ///
        /// This structure implements an [`AsyncWrite`](futures_io::AsyncWrite) interface and will
        /// take in compressed data and write it uncompressed to an underlying stream.
        pub struct $name<W: futures_io::AsyncWrite> {
            #[pin]
            inner: crate::write::Decoder<W, crate::codec::$name>,
        }

        impl<W: futures_io::AsyncWrite> $name<W> {
            /// Creates a new decoder which will take in compressed data and write it uncompressedd
            /// to the given stream.
            pub fn new(read: W) -> $name<W> {
                $name {
                    inner: crate::write::Decoder::new(read, crate::codec::$name::new()),
                }
            }

            /// Acquires a reference to the underlying reader that this decoder is wrapping.
            pub fn get_ref(&self) -> &W {
                self.inner.get_ref()
            }

            /// Acquires a mutable reference to the underlying reader that this decoder is
            /// wrapping.
            ///
            /// Note that care must be taken to avoid tampering with the state of the reader which
            /// may otherwise confuse this decoder.
            pub fn get_mut(&mut self) -> &mut W {
                self.inner.get_mut()
            }

            /// Acquires a pinned mutable reference to the underlying reader that this decoder is
            /// wrapping.
            ///
            /// Note that care must be taken to avoid tampering with the state of the reader which
            /// may otherwise confuse this decoder.
            pub fn get_pin_mut(self: std::pin::Pin<&mut Self>) -> std::pin::Pin<&mut W> {
                self.project().inner.get_pin_mut()
            }

            /// Consumes this decoder returning the underlying reader.
            ///
            /// Note that this may discard internal state of this decoder, so care should be taken
            /// to avoid losing resources when this is called.
            pub fn into_inner(self) -> W {
                self.inner.into_inner()
            }
        }

        impl<W: futures_io::AsyncWrite> futures_io::AsyncWrite for $name<W> {
            fn poll_write(
                self: std::pin::Pin<&mut Self>,
                cx: &mut std::task::Context<'_>,
                buf: &[u8],
            ) -> std::task::Poll<std::io::Result<usize>> {
                self.project().inner.poll_write(cx, buf)
            }

            fn poll_flush(
                self: std::pin::Pin<&mut Self>,
                cx: &mut std::task::Context<'_>,
            ) -> std::task::Poll<std::io::Result<()>> {
                self.project().inner.poll_flush(cx)
            }

            fn poll_close(
                self: std::pin::Pin<&mut Self>,
                cx: &mut std::task::Context<'_>,
            ) -> std::task::Poll<std::io::Result<()>> {
                self.project().inner.poll_close(cx)
            }
        }

        const _: () = {
            fn _assert() {
                use crate::util::{_assert_send, _assert_sync};
                use core::pin::Pin;
                use futures_io::AsyncWrite;

                _assert_send::<$name<Pin<Box<dyn AsyncWrite + Send>>>>();
                _assert_sync::<$name<Pin<Box<dyn AsyncWrite + Sync>>>>();
            }
        };
    }
}