npm and error messages

node_modules/webpack/lib/dependencies/LocalModule.js

@@ -0,0 +1,23 @@
+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Tobias Koppers @sokra
+*/
+"use strict";
+
+class LocalModule {
+	constructor(module, name, idx) {
+		this.module = module;
+		this.name = name;
+		this.idx = idx;
+		this.used = false;
+	}
+
+	flagUsed() {
+		this.used = true;
+	}
+
+	variableName() {
+		return "__WEBPACK_LOCAL_MODULE_" + this.idx + "__";
+	}
+}
+module.exports = LocalModule;