add unsupported implementations for missing platforms

Author: Qelxiros

library/std/src/sys/fs/hermit.rs

@@ -19,6 +19,48 @@ use crate::{fmt, mem};
 
 #[derive(Debug)]
 pub struct File(FileDesc);
+
+pub struct Dir(!);
+
+impl Dir {
+    pub fn new<P: AsRef<Path>>(path: P) -> io::Result<Self> {
+        unsupported()
+    }
+
+    pub fn new_with<P: AsRef<Path>>(path: P, opts: &OpenOptions) -> io::Result<Self> {
+        unsupported()
+    }
+
+    pub fn open<P: AsRef<Path>>(&self, path: P) -> io::Result<File> {
+        self.0
+    }
+
+    pub fn open_with<P: AsRef<Path>>(&self, path: P, opts: &OpenOptions) -> io::Result<File> {
+        self.0
+    }
+
+    pub fn create_dir<P: AsRef<Path>>(&self, path: P) -> io::Result<()> {
+        self.0
+    }
+
+    pub fn remove_file<P: AsRef<Path>>(&self, path: P) -> io::Result<()> {
+        self.0
+    }
+
+    pub fn remove_dir<P: AsRef<Path>>(&self, path: P) -> io::Result<()> {
+        self.0
+    }
+
+    pub fn rename<P: AsRef<Path>, Q: AsRef<Path>>(
+        &self,
+        from: P,
+        to_dir: &Self,
+        to: Q,
+    ) -> io::Result<()> {
+        self.0
+    }
+}
+
 #[derive(Clone)]
 pub struct FileAttr {
     stat_val: stat_struct,

library/std/src/sys/fs/solid.rs

@@ -85,6 +85,8 @@ pub struct FileType(c_short);
 #[derive(Debug)]
 pub struct DirBuilder {}
 
+pub struct Dir(!);
+
 impl FileAttr {
     pub fn size(&self) -> u64 {
         self.stat.st_size as u64
@@ -193,6 +195,45 @@ impl Drop for InnerReadDir {
     }
 }
 
+impl Dir {
+    pub fn new<P: AsRef<Path>>(path: P) -> io::Result<Self> {
+        unsupported()
+    }
+
+    pub fn new_with<P: AsRef<Path>>(path: P, opts: &OpenOptions) -> io::Result<Self> {
+        unsupported()
+    }
+
+    pub fn open<P: AsRef<Path>>(&self, path: P) -> io::Result<File> {
+        self.0
+    }
+
+    pub fn open_with<P: AsRef<Path>>(&self, path: P, opts: &OpenOptions) -> io::Result<File> {
+        self.0
+    }
+
+    pub fn create_dir<P: AsRef<Path>>(&self, path: P) -> io::Result<()> {
+        self.0
+    }
+
+    pub fn remove_file<P: AsRef<Path>>(&self, path: P) -> io::Result<()> {
+        self.0
+    }
+
+    pub fn remove_dir<P: AsRef<Path>>(&self, path: P) -> io::Result<()> {
+        self.0
+    }
+
+    pub fn rename<P: AsRef<Path>, Q: AsRef<Path>>(
+        &self,
+        from: P,
+        to_dir: &Self,
+        to: Q,
+    ) -> io::Result<()> {
+        self.0
+    }
+}
+
 impl DirEntry {
     pub fn path(&self) -> PathBuf {
         self.inner.root.join(OsStr::from_bytes(

library/std/src/sys/fs/uefi.rs

@@ -20,6 +20,8 @@ pub struct FileAttr {
     size: u64,
 }
 
+pub struct Dir(!);
+
 pub struct ReadDir(!);
 
 pub struct DirEntry(!);
@@ -115,6 +117,45 @@ impl FileType {
     }
 }
 
+impl Dir {
+    pub fn new<P: AsRef<Path>>(path: P) -> io::Result<Self> {
+        unsupported()
+    }
+
+    pub fn new_with<P: AsRef<Path>>(path: P, opts: &OpenOptions) -> io::Result<Self> {
+        unsupported()
+    }
+
+    pub fn open<P: AsRef<Path>>(&self, path: P) -> io::Result<File> {
+        self.0
+    }
+
+    pub fn open_with<P: AsRef<Path>>(&self, path: P, opts: &OpenOptions) -> io::Result<File> {
+        self.0
+    }
+
+    pub fn create_dir<P: AsRef<Path>>(&self, path: P) -> io::Result<()> {
+        self.0
+    }
+
+    pub fn remove_file<P: AsRef<Path>>(&self, path: P) -> io::Result<()> {
+        self.0
+    }
+
+    pub fn remove_dir<P: AsRef<Path>>(&self, path: P) -> io::Result<()> {
+        self.0
+    }
+
+    pub fn rename<P: AsRef<Path>, Q: AsRef<Path>>(
+        &self,
+        from: P,
+        to_dir: &Self,
+        to: Q,
+    ) -> io::Result<()> {
+        self.0
+    }
+}
+
 impl fmt::Debug for ReadDir {
     fn fmt(&self, _f: &mut fmt::Formatter<'_>) -> fmt::Result {
         self.0

library/std/src/sys/fs/wasi.rs

@@ -24,6 +24,8 @@ pub struct FileAttr {
     meta: wasi::Filestat,
 }
 
+pub struct Dir(!);
+
 pub struct ReadDir {
     inner: Arc<ReadDirInner>,
     state: ReadDirState,
@@ -160,6 +162,45 @@ impl FileType {
     }
 }
 
+impl Dir {
+    pub fn new<P: AsRef<Path>>(path: P) -> io::Result<Self> {
+        unsupported()
+    }
+
+    pub fn new_with<P: AsRef<Path>>(path: P, opts: &OpenOptions) -> io::Result<Self> {
+        unsupported()
+    }
+
+    pub fn open<P: AsRef<Path>>(&self, path: P) -> io::Result<File> {
+        self.0
+    }
+
+    pub fn open_with<P: AsRef<Path>>(&self, path: P, opts: &OpenOptions) -> io::Result<File> {
+        self.0
+    }
+
+    pub fn create_dir<P: AsRef<Path>>(&self, path: P) -> io::Result<()> {
+        self.0
+    }
+
+    pub fn remove_file<P: AsRef<Path>>(&self, path: P) -> io::Result<()> {
+        self.0
+    }
+
+    pub fn remove_dir<P: AsRef<Path>>(&self, path: P) -> io::Result<()> {
+        self.0
+    }
+
+    pub fn rename<P: AsRef<Path>, Q: AsRef<Path>>(
+        &self,
+        from: P,
+        to_dir: &Self,
+        to: Q,
+    ) -> io::Result<()> {
+        self.0
+    }
+}
+
 impl ReadDir {
     fn new(dir: File, root: PathBuf) -> ReadDir {
         ReadDir {