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use crate::fs::{DirEntry, ReadDirInner};
use std::{fmt, fs, io, path::Path};
/// Construct a `ReadDir` to iterate over the contents of a directory,
/// ensuring that the resolution of the path never escapes the directory
/// tree rooted at `start`.
#[inline]
pub fn read_dir(start: &fs::File, path: &Path) -> io::Result<ReadDir> {
Ok(ReadDir {
inner: ReadDirInner::new(start, path)?,
})
}
/// Like `read_dir` but operates on the base directory itself, rather than
/// on a path based on it.
#[inline]
pub fn read_base_dir(start: &fs::File) -> io::Result<ReadDir> {
Ok(ReadDir {
inner: ReadDirInner::read_base_dir(start)?,
})
}
/// Like `read_dir`, but doesn't perform sandboxing.
#[inline]
pub(crate) fn read_dir_unchecked(start: &fs::File, path: &Path) -> io::Result<ReadDir> {
Ok(ReadDir {
inner: ReadDirInner::new_unchecked(start, path)?,
})
}
/// Iterator over the entries in a directory.
///
/// This corresponds to [`std::fs::ReadDir`].
///
/// Note that there is no `from_std` method, as `std::fs::ReadDir` doesn't
/// provide a way to construct a `ReadDir` without opening directories by
/// ambient paths.
pub struct ReadDir {
pub(crate) inner: ReadDirInner,
}
impl Iterator for ReadDir {
type Item = io::Result<DirEntry>;
#[inline]
fn next(&mut self) -> Option<Self::Item> {
self.inner
.next()
.map(|inner| inner.map(|inner| DirEntry { inner }))
}
}
impl fmt::Debug for ReadDir {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
self.inner.fmt(f)
}
}