remove repeated code

Author: sokra

lib/ContextModule.js

@@ -254,6 +254,10 @@ class ContextModule extends Module {
 		return fakeMap;
 	}
 
+	getFakeMapInitStatement(fakeMap) {
+		return typeof fakeMap === "object" ? `var fakeMap = ${JSON.stringify(fakeMap, null, "\t")};` : "";
+	}
+
 	getReturnModuleObjectSource(fakeMap, fakeMapDataExpression = "fakeMap[id]") {
 		const strict = this.options.namespaceObject === "strict";
 		const getReturn = type => {
@@ -277,7 +281,7 @@ class ContextModule extends Module {
 		const returnModuleObject = `${this.getReturnModuleObjectSource(fakeMap)};`;
 
 		return `var map = ${JSON.stringify(map, null, "\t")};
-${typeof fakeMap === "object" ? `var fakeMap = ${JSON.stringify(fakeMap, null, "\t")};` : ""}
+${this.getFakeMapInitStatement(fakeMap)}
 
 function webpackContext(req) {
 	var id = webpackContextResolve(req);
@@ -307,7 +311,7 @@ webpackContext.id = ${JSON.stringify(id)};`;
 		const returnModuleObject = `${this.getReturnModuleObjectSource(fakeMap)};`;
 
 		return `var map = ${JSON.stringify(map, null, "\t")};
-${typeof fakeMap === "object" ? `var fakeMap = ${JSON.stringify(fakeMap, null, "\t")};` : ""}
+${this.getFakeMapInitStatement(fakeMap)}
 
 function webpackContext(req) {
 	var id = webpackContextResolve(req);
@@ -342,7 +346,7 @@ module.exports = webpackContext;`;
 		const returnModuleObject = `${this.getReturnModuleObjectSource(fakeMap)};`;
 
 		return `var map = ${JSON.stringify(map, null, "\t")};
-${typeof fakeMap === "object" ? `var fakeMap = ${JSON.stringify(fakeMap, null, "\t")};` : ""}
+${this.getFakeMapInitStatement(fakeMap)}
 
 function webpackAsyncContext(req) {
 	return webpackAsyncContextResolve(req).then(function(id) {
@@ -386,7 +390,7 @@ module.exports = webpackAsyncContext;`;
 }` :
 			"__webpack_require__";
 		return `var map = ${JSON.stringify(map, null, "\t")};
-${typeof fakeMap === "object" ? `var fakeMap = ${JSON.stringify(fakeMap, null, "\t")};` : ""}
+${this.getFakeMapInitStatement(fakeMap)}
 
 function webpackAsyncContext(req) {
 	return webpackAsyncContextResolve(req).then(${thenFunction});
@@ -427,7 +431,7 @@ module.exports = webpackAsyncContext;`;
 			"__webpack_require__";
 
 		return `var map = ${JSON.stringify(map, null, "\t")};
-${typeof fakeMap === "object" ? `var fakeMap = ${JSON.stringify(fakeMap, null, "\t")};` : ""}
+${this.getFakeMapInitStatement(fakeMap)}
 
 function webpackAsyncContext(req) {
 	return webpackAsyncContextResolve(req).then(${thenFunction});