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use crate::Stream;
use std::io;
use std::pin::Pin;
use std::task::{Context, Poll};
use tokio::fs::{DirEntry, ReadDir};
/// A wrapper around [`tokio::fs::ReadDir`] that implements [`Stream`].
///
/// [`tokio::fs::ReadDir`]: struct@tokio::fs::ReadDir
/// [`Stream`]: trait@crate::Stream
#[derive(Debug)]
#[cfg_attr(docsrs, doc(cfg(feature = "fs")))]
pub struct ReadDirStream {
inner: ReadDir,
}
impl ReadDirStream {
/// Create a new `ReadDirStream`.
pub fn new(read_dir: ReadDir) -> Self {
Self { inner: read_dir }
}
/// Get back the inner `ReadDir`.
pub fn into_inner(self) -> ReadDir {
self.inner
}
}
impl Stream for ReadDirStream {
type Item = io::Result<DirEntry>;
fn poll_next(mut self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Option<Self::Item>> {
self.inner.poll_next_entry(cx).map(Result::transpose)
}
}
impl AsRef<ReadDir> for ReadDirStream {
fn as_ref(&self) -> &ReadDir {
&self.inner
}
}
impl AsMut<ReadDir> for ReadDirStream {
fn as_mut(&mut self) -> &mut ReadDir {
&mut self.inner
}
}
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