Add ToOwned and Borrow impls

Author: Stjepan Glavina

src/fs/canonicalize.rs

@@ -32,7 +32,7 @@ use crate::task::blocking;
 /// # Ok(()) }) }
 /// ```
 pub async fn canonicalize<P: AsRef<Path>>(path: P) -> io::Result<PathBuf> {
-    let path: std::path::PathBuf = path.as_ref().to_path_buf().into();
+    let path: PathBuf = path.as_ref().to_owned();
     Ok(blocking::spawn(async move { std::fs::canonicalize(&path) })
         .await?
         .into())

src/fs/metadata.rs

@@ -35,7 +35,7 @@ use crate::task::blocking;
 /// # Ok(()) }) }
 /// ```
 pub async fn metadata<P: AsRef<Path>>(path: P) -> io::Result<Metadata> {
-    let path: std::path::PathBuf = path.as_ref().to_path_buf().into();
+    let path = path.as_ref().to_owned();
     blocking::spawn(async move { std::fs::metadata(path) }).await
 }
 

src/fs/read_dir.rs

@@ -44,7 +44,7 @@ use crate::task::{blocking, Context, JoinHandle, Poll};
 /// # Ok(()) }) }
 /// ```
 pub async fn read_dir<P: AsRef<Path>>(path: P) -> io::Result<ReadDir> {
-    let path: std::path::PathBuf = path.as_ref().to_path_buf().into();
+    let path = path.as_ref().to_owned();
     blocking::spawn(async move { std::fs::read_dir(path) })
         .await
         .map(ReadDir::new)

src/fs/read_link.rs

@@ -27,7 +27,7 @@ use crate::task::blocking;
 /// # Ok(()) }) }
 /// ```
 pub async fn read_link<P: AsRef<Path>>(path: P) -> io::Result<PathBuf> {
-    let path: std::path::PathBuf = path.as_ref().to_path_buf().into();
+    let path = path.as_ref().to_owned();
     Ok(blocking::spawn(async move { std::fs::read_link(path) })
         .await?
         .into())

src/fs/symlink_metadata.rs

@@ -33,6 +33,6 @@ use crate::task::blocking;
 /// # Ok(()) }) }
 /// ```
 pub async fn symlink_metadata<P: AsRef<Path>>(path: P) -> io::Result<Metadata> {
-    let path: std::path::PathBuf = path.as_ref().to_path_buf().into();
+    let path = path.as_ref().to_owned();
     blocking::spawn(async move { std::fs::symlink_metadata(path) }).await
 }

src/path/path.rs

@@ -830,3 +830,11 @@ impl AsRef<Path> for String {
         Path::new(self)
     }
 }
+
+impl std::borrow::ToOwned for Path {
+    type Owned = PathBuf;
+
+    fn to_owned(&self) -> PathBuf {
+        self.to_path_buf()
+    }
+}

src/path/pathbuf.rs

@@ -192,6 +192,12 @@ impl std::ops::Deref for PathBuf {
     }
 }
 
+impl std::borrow::Borrow<Path> for PathBuf {
+    fn borrow(&self) -> &Path {
+        &**self
+    }
+}
+
 impl From<std::path::PathBuf> for PathBuf {
     fn from(path: std::path::PathBuf) -> PathBuf {
         PathBuf { inner: path }