Fix unnecessary structure name repetitions, as reported by clippy

crates/wasi-common/src/entry.rs

@@ -18,43 +18,43 @@ pub(crate) enum Descriptor {
 
 impl From<OsHandle> for Descriptor {
     fn from(handle: OsHandle) -> Self {
-        Descriptor::OsHandle(handle)
+        Self::OsHandle(handle)
     }
 }
 
 impl From<Box<dyn VirtualFile>> for Descriptor {
     fn from(virt: Box<dyn VirtualFile>) -> Self {
-        Descriptor::VirtualFile(virt)
+        Self::VirtualFile(virt)
     }
 }
 
 impl fmt::Debug for Descriptor {
     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
         match self {
-            Descriptor::OsHandle(handle) => write!(f, "{:?}", handle),
-            Descriptor::VirtualFile(_) => write!(f, "VirtualFile"),
-            Descriptor::Stdin => write!(f, "Stdin"),
-            Descriptor::Stdout => write!(f, "Stdout"),
-            Descriptor::Stderr => write!(f, "Stderr"),
+            Self::OsHandle(handle) => write!(f, "{:?}", handle),
+            Self::VirtualFile(_) => write!(f, "VirtualFile"),
+            Self::Stdin => write!(f, "Stdin"),
+            Self::Stdout => write!(f, "Stdout"),
+            Self::Stderr => write!(f, "Stderr"),
         }
     }
 }
 
 impl Descriptor {
-    pub(crate) fn try_clone(&self) -> io::Result<Descriptor> {
+    pub(crate) fn try_clone(&self) -> io::Result<Self> {
         match self {
-            Descriptor::OsHandle(file) => file.try_clone().map(|f| OsHandle::from(f).into()),
-            Descriptor::VirtualFile(virt) => virt.try_clone().map(Descriptor::VirtualFile),
-            Descriptor::Stdin => Ok(Descriptor::Stdin),
-            Descriptor::Stdout => Ok(Descriptor::Stdout),
-            Descriptor::Stderr => Ok(Descriptor::Stderr),
+            Self::OsHandle(file) => file.try_clone().map(|f| OsHandle::from(f).into()),
+            Self::VirtualFile(virt) => virt.try_clone().map(Self::VirtualFile),
+            Self::Stdin => Ok(Self::Stdin),
+            Self::Stdout => Ok(Self::Stdout),
+            Self::Stderr => Ok(Self::Stderr),
         }
     }
 
     /// Return a reference to the `OsHandle` or `VirtualFile` treating it as an
     /// actual file/dir, and allowing operations which require an actual file and
     /// not just a stream or socket file descriptor.
-    pub(crate) fn as_file<'descriptor>(&'descriptor self) -> WasiResult<&'descriptor Descriptor> {
+    pub(crate) fn as_file<'descriptor>(&'descriptor self) -> WasiResult<&'descriptor Self> {
         match self {
             Self::OsHandle(_) => Ok(self),
             Self::VirtualFile(_) => Ok(self),
@@ -65,7 +65,7 @@ impl Descriptor {
     /// Like `as_file`, but return a mutable reference.
     pub(crate) fn as_file_mut<'descriptor>(
         &'descriptor mut self,
-    ) -> WasiResult<&'descriptor mut Descriptor> {
+    ) -> WasiResult<&'descriptor mut Self> {
         match self {
             Self::OsHandle(_) => Ok(self),
             Self::VirtualFile(_) => Ok(self),

crates/wasi-common/src/virtfs.rs

@@ -20,7 +20,7 @@ pub enum VirtualDirEntry {
 
 impl VirtualDirEntry {
     pub fn empty_directory() -> Self {
-        VirtualDirEntry::Directory(HashMap::new())
+        Self::Directory(HashMap::new())
     }
 }
 
@@ -313,7 +313,7 @@ impl VirtualFile for InMemoryFile {
     }
 
     fn try_clone(&self) -> io::Result<Box<dyn VirtualFile>> {
-        Ok(Box::new(InMemoryFile {
+        Ok(Box::new(Self {
             cursor: 0,
             fd_flags: self.fd_flags,
             parent: Rc::clone(&self.parent),
@@ -550,21 +550,21 @@ pub struct VirtualDir {
 
 impl VirtualDir {
     pub fn new(writable: bool) -> Self {
-        VirtualDir {
+        Self {
             writable,
             parent: Rc::new(RefCell::new(None)),
             entries: Rc::new(RefCell::new(HashMap::new())),
         }
     }
 
     #[allow(dead_code)]
-    pub fn with_dir<P: AsRef<Path>>(mut self, dir: VirtualDir, path: P) -> Self {
+    pub fn with_dir<P: AsRef<Path>>(mut self, dir: Self, path: P) -> Self {
         self.add_dir(dir, path);
         self
     }
 
     #[allow(dead_code)]
-    pub fn add_dir<P: AsRef<Path>>(&mut self, dir: VirtualDir, path: P) {
+    pub fn add_dir<P: AsRef<Path>>(&mut self, dir: Self, path: P) {
         let entry = Box::new(dir);
         entry.set_parent(Some(self.try_clone().expect("can clone self")));
         self.entries
@@ -603,7 +603,7 @@ const RESERVED_ENTRY_COUNT: u32 = 2;
 
 impl VirtualFile for VirtualDir {
     fn try_clone(&self) -> io::Result<Box<dyn VirtualFile>> {
-        Ok(Box::new(VirtualDir {
+        Ok(Box::new(Self {
             writable: self.writable,
             parent: Rc::clone(&self.parent),
             entries: Rc::clone(&self.entries),
@@ -773,7 +773,7 @@ impl VirtualFile for VirtualDir {
             Entry::Occupied(_) => Err(WasiError::EEXIST),
             Entry::Vacant(v) => {
                 if self.writable {
-                    let new_dir = Box::new(VirtualDir::new(true));
+                    let new_dir = Box::new(Self::new(true));
                     new_dir.set_parent(Some(self.try_clone()?));
                     v.insert(new_dir);
                     Ok(())