fix: reduce binary size

Author: GiveMe-A-Name

crates/rspack_fs/src/watcher/ignored.rs

@@ -27,7 +27,11 @@ impl Debug for FsWatcherIgnored {
 /// Normalize the path by replacing backslashes with forward slashes.
 /// Smooth out the differences in the system, specifically for Windows
 fn normalize_path<'a>(path: &'a str) -> Cow<'a, str> {
-  path.cow_replace("\\", "/")
+  if cfg!(target_os = "windows") {
+    path.cow_replace("\\", "/")
+  } else {
+    Cow::Borrowed(path)
+  }
 }
 
 impl FsWatcherIgnored {

crates/rspack_fs/src/watcher/mod.rs

@@ -35,8 +35,8 @@ pub enum FsEventKind {
 
 #[derive(Debug, Clone, PartialEq, Eq)]
 pub(crate) struct FsEvent {
-  pub path: ArcPath,
-  pub kind: FsEventKind,
+  pub(crate) path: ArcPath,
+  pub(crate) kind: FsEventKind,
 }
 
 /// `EventAggregateHandler` is a trait for handling aggregated file system events.

crates/rspack_fs/src/watcher/paths.rs

@@ -106,7 +106,6 @@ impl<'a> PathAccessor<'a> {
 /// by specifying which paths have been added and which have been removed. It holds vectors of paths to be
 /// added and removed, and provides functionality to apply these changes to a path tracker. This struct
 /// facilitates batch updates to the path sets, ensuring that additions and removals are processed efficiently.
-#[derive(Debug)]
 struct PathUpdater {
   pub added: Vec<ArcPath>,
   pub removed: Vec<ArcPath>,
@@ -146,7 +145,7 @@ impl PathUpdater {
   }
 }
 
-#[derive(Debug, Default)]
+#[derive(Default)]
 /// `PathTracker` is responsible for tracking the state of file system paths for the watcher.
 ///
 /// It maintains three sets: