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Rollup merge of #98583 - joshtriplett:stabilize-windows-symlink-types, r=thomcc

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Stabilize Windows `FileTypeExt` with `is_symlink_dir` and `is_symlink_file`

These calls allow detecting whether a symlink is a file or a directory,
a distinction Windows maintains, and one important to software that
wants to do further operations on the symlink (e.g. removing it).
This commit is contained in:
Yuki Okushi 2022-07-27 11:52:52 +09:00 committed by GitHub
commit 1ff84f09b2
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1 changed files with 9 additions and 5 deletions
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14
library/std/src/os/windows/fs.rs
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@ -7,6 +7,7 @@
use crate::fs::{self, Metadata, OpenOptions};
use crate::io;
use crate::path::Path;
use crate::sealed::Sealed;
use crate::sys;
use crate::sys_common::{AsInner, AsInnerMut};
@ -502,17 +503,20 @@ impl MetadataExt for Metadata {
/// Windows-specific extensions to [`fs::FileType`].
///
/// On Windows, a symbolic link knows whether it is a file or directory.
#[unstable(feature = "windows_file_type_ext", issue = "none")]
pub trait FileTypeExt {
#[stable(feature = "windows_file_type_ext", since = "1.64.0")]
pub trait FileTypeExt: Sealed {
/// Returns `true` if this file type is a symbolic link that is also a directory.
#[unstable(feature = "windows_file_type_ext", issue = "none")]
#[stable(feature = "windows_file_type_ext", since = "1.64.0")]
fn is_symlink_dir(&self) -> bool;
/// Returns `true` if this file type is a symbolic link that is also a file.
#[unstable(feature = "windows_file_type_ext", issue = "none")]
#[stable(feature = "windows_file_type_ext", since = "1.64.0")]
fn is_symlink_file(&self) -> bool;
}
#[unstable(feature = "windows_file_type_ext", issue = "none")]
#[stable(feature = "windows_file_type_ext", since = "1.64.0")]
impl Sealed for fs::FileType {}
#[stable(feature = "windows_file_type_ext", since = "1.64.0")]
impl FileTypeExt for fs::FileType {
fn is_symlink_dir(&self) -> bool {
self.as_inner().is_symlink_dir()