Batch rename: imfs -> vfs

src/vfs/noop_fetcher.rs

@@ -0,0 +1,62 @@
+//! Implements the VFS fetcher interface for a fake filesystem using Rust's
+//! std::fs interface.
+
+// This interface is only used for testing, so it's okay if it isn't used.
+#![allow(unused)]
+
+use std::{
+    io,
+    path::{Path, PathBuf},
+};
+
+use crossbeam_channel::Receiver;
+
+use super::{
+    event::VfsEvent,
+    fetcher::{FileType, VfsFetcher},
+};
+
+pub struct NoopFetcher;
+
+impl VfsFetcher for NoopFetcher {
+    fn file_type(&mut self, _path: &Path) -> io::Result<FileType> {
+        Err(io::Error::new(
+            io::ErrorKind::NotFound,
+            "NoopFetcher always returns NotFound",
+        ))
+    }
+
+    fn read_children(&mut self, _path: &Path) -> io::Result<Vec<PathBuf>> {
+        Err(io::Error::new(
+            io::ErrorKind::NotFound,
+            "NoopFetcher always returns NotFound",
+        ))
+    }
+
+    fn read_contents(&mut self, _path: &Path) -> io::Result<Vec<u8>> {
+        Err(io::Error::new(
+            io::ErrorKind::NotFound,
+            "NoopFetcher always returns NotFound",
+        ))
+    }
+
+    fn create_directory(&mut self, _path: &Path) -> io::Result<()> {
+        Ok(())
+    }
+
+    fn write_file(&mut self, _path: &Path, _contents: &[u8]) -> io::Result<()> {
+        Ok(())
+    }
+
+    fn remove(&mut self, _path: &Path) -> io::Result<()> {
+        Ok(())
+    }
+
+    fn watch(&mut self, _path: &Path) {}
+
+    fn unwatch(&mut self, _path: &Path) {}
+
+    fn receiver(&self) -> Receiver<VfsEvent> {
+        crossbeam_channel::never()
+    }
+}