From ccc32d31bf2ad4cea51733485065b5fe32f79167 Mon Sep 17 00:00:00 2001
From: Maksim <acupofspirt@gmail.com>
Date: Tue, 13 Mar 2018 13:16:39 +0300
Subject: [PATCH] Remove unnecessary handler wrapper

---
 lib/MultiCompiler.js | 12 +++---------
 1 file changed, 3 insertions(+), 9 deletions(-)

diff --git a/lib/MultiCompiler.js b/lib/MultiCompiler.js
index eefd98cb2..1f941fe7f 100644
--- a/lib/MultiCompiler.js
+++ b/lib/MultiCompiler.js
@@ -189,16 +189,10 @@ module.exports = class MultiCompiler extends Tapable {
 	watch(watchOptions, handler) {
 		if (this.running) return handler(new ConcurrentCompilationError());
 
-		const finalHandler = (err, stats) => {
-			this.running = false;
-
-			if (handler !== undefined) handler(err, stats);
-		};
-
 		let watchings = [];
 		let allStats = this.compilers.map(() => null);
 		let compilerStatus = this.compilers.map(() => false);
-		if (this.validateDependencies(finalHandler)) {
+		if (this.validateDependencies(handler)) {
 			this.running = true;
 			this.runWithDependencies(
 				this.compilers,
@@ -210,7 +204,7 @@ module.exports = class MultiCompiler extends Tapable {
 							? watchOptions[compilerIdx]
 							: watchOptions,
 						(err, stats) => {
-							if (err) finalHandler(err);
+							if (err) handler(err);
 							if (stats) {
 								allStats[compilerIdx] = stats;
 								compilerStatus[compilerIdx] = "new";
@@ -220,7 +214,7 @@ module.exports = class MultiCompiler extends Tapable {
 									});
 									compilerStatus.fill(true);
 									const multiStats = new MultiStats(freshStats);
-									finalHandler(null, multiStats);
+									handler(null, multiStats);
 								}
 							}
 							if (firstRun && !err) {