perf: incremental code splitting

.vscode/rspack.code-workspace

@@ -0,0 +1,28 @@
+{
+	"folders": [
+		{
+			"path": ".."
+		},
+		{
+			"path": "../../../demo/webpack"
+		},
+		{
+			"path": "../../webpack"
+		}
+	],
+	"settings": {
+		"git.ignoreLimitWarning": true,
+		"rust-analyzer.procMacro.enable": true,
+		"rust-analyzer.procMacro.attributes.enable": true,
+		"rust-analyzer.linkedProjects": [
+			"Cargo.toml",
+			"crates/node_binding/Cargo.toml",
+			"./crates/rspack_plugin_ensure_chunk_conditions/Cargo.toml"
+		],
+		"files.associations": {
+			"*.snap": "markdown",
+			"*.snap.txt": "markdown",
+			"*.json": "jsonc"
+		}
+	}
+}

crates/rspack_collections/src/ukey.rs

@@ -144,6 +144,14 @@ where
     self.inner.entry(id)
   }
 
+  pub fn get(&self, id: &<Item as DatabaseItem>::ItemUkey) -> Option<&Item> {
+    self.inner.get(id)
+  }
+
+  pub fn get_mut(&mut self, id: &<Item as DatabaseItem>::ItemUkey) -> Option<&mut Item> {
+    self.inner.get_mut(id)
+  }
+
   pub fn expect_get(&self, id: &<Item as DatabaseItem>::ItemUkey) -> &Item {
     self
       .inner
@@ -235,3 +243,14 @@ where
     self.inner.entry(ukey).or_insert(item)
   }
 }
+
+impl<Item: DatabaseItem> Database<Item>
+where
+  <Item as DatabaseItem>::ItemUkey: Eq + Ord + Hash + Debug,
+{
+  pub fn ordered_keys(&self) -> Vec<&<Item as DatabaseItem>::ItemUkey> {
+    let mut keys = self.keys().collect::<Vec<_>>();
+    keys.sort();
+    keys
+  }
+}