refactor(fs): use type aliases

src/fs/dir.rs

@@ -2,8 +2,7 @@
 use crate::fs::{DirItem, DirItemIterator, Result};
 
 use super::{
-    path::{DirMarker, PathReal},
+    path::{DirMarker, PathReal}, DirHandle, Error, FileHandle, FileMarker, PathHandle, PathMarker
-    DirHandle, Error, FileMarker, PathMarker,
 };
 
 impl<'base, 'path> DirHandle<'base, 'path> {
@@ -62,13 +61,11 @@ impl<'base, 'path> DirHandle<'base, 'path> {
         Ok(Box::new(DirItemIterator::new(read_dir)))
     }
 }
-impl<'base, 'path> TryFrom<PathReal<'base, 'path, PathMarker>>
+impl<'base, 'path> TryFrom<PathHandle<'base, 'path>> for FileHandle<'base, 'path> {
-    for PathReal<'base, 'path, FileMarker>
-{
     type Error = crate::fs::Error;
 
     fn try_from(
-        path: PathReal<'base, 'path, PathMarker>,
+        path: PathHandle<'base, 'path>,
     ) -> std::result::Result<Self, Self::Error> {
         match path.as_file() {
             Ok(Some(dir)) => Ok(dir.clone()),
@@ -79,13 +76,11 @@ impl<'base, 'path> TryFrom<PathReal<'base, 'path, PathMarker>>
         }
     }
 }
-impl<'base, 'path> TryFrom<PathReal<'base, 'path, PathMarker>>
+impl<'base, 'path> TryFrom<PathHandle<'base, 'path>> for DirHandle<'base, 'path> {
-    for PathReal<'base, 'path, DirMarker>
-{
     type Error = crate::fs::Error;
 
     fn try_from(
-        path: PathReal<'base, 'path, PathMarker>,
+        path: PathHandle<'base, 'path>,
     ) -> std::result::Result<Self, Self::Error> {
         match path.as_dir() {
             Ok(Some(dir)) => Ok(dir.clone()),

src/fs/file.rs

@@ -58,7 +58,7 @@ impl<'base, 'path> FileHandle<'base, 'path> {
     /// # Ok(())
     /// # }
     /// ```
-    pub fn copy(&self, dest: &PathReal<'base, 'path, FileMarker>) -> Result<u64> {
+    pub fn copy(&self, dest: &FileHandle<'base, 'path>) -> Result<u64> {
         self.check_error()?;
         std::fs::copy(self.as_pathbuf(), dest.as_pathbuf()).map_err(Error::Io)
     }

src/fs/path.rs

@@ -6,6 +6,8 @@ use std::{
 
 use crate::fs::{Error, Result};
 
+use super::{DirHandle, FileHandle, PathHandle};
+
 /// Marker trait for the type of [PathReal].
 pub trait PathType {}
 
@@ -170,7 +172,7 @@ impl<'base, 'path, T: PathType> PathReal<'base, 'path, T> {
     /// #    Ok(())
     /// # }
     /// ```
-    pub fn as_dir(&self) -> Result<Option<PathReal<'base, 'path, DirMarker>>> {
+    pub fn as_dir(&self) -> Result<Option<DirHandle<'base, 'path>>> {
         self.check_error()?;
         if self.as_pathbuf().is_dir() {
             Ok(Some(PathReal::new(self.base, self.path)))
@@ -193,7 +195,7 @@ impl<'base, 'path, T: PathType> PathReal<'base, 'path, T> {
     /// #    Ok(())
     /// # }
     /// ```
-    pub fn as_file(&self) -> Result<Option<PathReal<'base, 'path, FileMarker>>> {
+    pub fn as_file(&self) -> Result<Option<FileHandle<'base, 'path>>> {
         self.check_error()?;
         if self.as_pathbuf().is_file() {
             Ok(Some(PathReal::new(self.base, self.path)))
@@ -202,7 +204,7 @@ impl<'base, 'path, T: PathType> PathReal<'base, 'path, T> {
         }
     }
 }
-impl From<PathReal<'_, '_, PathMarker>> for PathBuf {
+impl<'base, 'path> From<PathHandle<'base, 'path>> for PathBuf {
     fn from(path: PathReal<PathMarker>) -> Self {
         path.base.join(path.path)
     }