fix: prevent from accessing outdated compilation (#8591)

Author: SyMind

packages/rspack/src/Compilation.ts

@@ -1135,8 +1135,7 @@ BREAKING CHANGE: Asset processing hooks in Compilation has been merged into a si
 						}
 					}
 				);
-			},
-			10
+			}
 		))(this);
 
 	rebuildModule(m: Module, f: (err: Error, m: Module) => void) {

packages/rspack/src/util/MergeCaller.ts

@@ -1,31 +1,23 @@
 type CallFn<D> = (args: D[]) => void;
 
 export default class MergeCaller<D> {
-	private timer: any = null;
 	private callArgs: D[] = [];
 
-	// add in constructor
-	private debounceTime: number;
 	private callFn: CallFn<D>;
-	constructor(fn: CallFn<D>, debounceTime: number) {
-		this.debounceTime = debounceTime;
+	constructor(fn: CallFn<D>) {
 		this.callFn = fn;
 	}
 
 	private finalCall = () => {
-		this.timer = null;
 		const args = this.callArgs;
 		this.callArgs = [];
 		this.callFn(args);
 	};
 
 	push(...data: D[]) {
-		if (this.timer) {
-			clearTimeout(this.timer);
+		if (this.callArgs.length === 0) {
+			queueMicrotask(this.finalCall);
 		}
-
 		this.callArgs.push(...data);
-
-		this.timer = setTimeout(this.finalCall, this.debounceTime);
 	}
 }

packages/rspack/src/util/fake.ts

@@ -6,7 +6,7 @@ export function createFakeCompilationDependencies(
 	getDeps: () => string[],
 	addDeps: (deps: string[]) => void
 ) {
-	const addDepsCaller = new MergeCaller(addDeps, 10);
+	const addDepsCaller = new MergeCaller(addDeps);
 	return {
 		*[Symbol.iterator]() {
 			const deps = getDeps();