refactor of WebpackMissingModule to es6

timse · timse · commit ec2dd451646c · 2017-01-11T22:53:13.000+11:00
diff --git a/lib/dependencies/WebpackMissingModule.js b/lib/dependencies/WebpackMissingModule.js
@@ -2,30 +2,22 @@
 	MIT License http://www.opensource.org/licenses/mit-license.php
 	Author Tobias Koppers @sokra
 */
-exports.module = function(request) {
-	return "!(function webpackMissingModule() { " +
-		exports.moduleCode(request) +
-		" }())";
-};
+"use strict";
+const toErrorCode = err => `var e = new Error('${err}'); e.code = 'MODULE_NOT_FOUND';`
+
+exports.module = request => `!(function webpackMissingModule() { ${exports.moduleCode(request)} }())`;
 
 exports.promise = function(request) {
-	return "Promise.reject(function webpackMissingModule() { " +
-		"var e = new Error(" + JSON.stringify("Cannot find module \"" + request + "\"") + "); " +
-		"e.code = 'MODULE_NOT_FOUND'; " +
-		"return e; " +
-		"}())";
+	const errorCode = toErrorCode(`Cannot find module "${request}"`);
+	return `Promise.reject(function webpackMissingModule() { ${errorCode}; return e; }())`;
 };
 
 exports.moduleCode = function(request) {
-	return "var e = new Error(" + JSON.stringify("Cannot find module \"" + request + "\"") + "); " +
-		"e.code = 'MODULE_NOT_FOUND'; " +
-		"throw e;";
+	const errorCode = toErrorCode(`Cannot find module "${request}"`);
+	return `${errorCode}; throw e;`;
 };
 
 exports.moduleMetaInfo = function(request) {
-	return "!(function webpackMissingModuleMetaInfo() { " +
-		"var e = new Error(" + JSON.stringify("Module cannot be imported because no meta info about exports is available \"" + request + "\"") + "); " +
-		"e.code = 'MODULE_NOT_FOUND'; " +
-		"throw e; " +
-		"}())";
+	const errorCode = toErrorCode(`Module cannot be imported because no meta info about exports is available "${request}"`);
+	return `!(function webpackMissingModuleMetaInfo() { ${errorCode}; throw e; }())`;
 };
