npm and error messages

node_modules/webpack/lib/dependencies/HarmonyExportHeaderDependency.js

@@ -0,0 +1,28 @@
+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Tobias Koppers @sokra
+*/
+"use strict";
+const NullDependency = require("./NullDependency");
+
+class HarmonyExportHeaderDependency extends NullDependency {
+	constructor(range, rangeStatement) {
+		super();
+		this.range = range;
+		this.rangeStatement = rangeStatement;
+	}
+
+	get type() {
+		return "harmony export header";
+	}
+}
+
+HarmonyExportHeaderDependency.Template = class HarmonyExportDependencyTemplate {
+	apply(dep, source) {
+		const content = "";
+		const replaceUntil = dep.range ? dep.range[0] - 1 : dep.rangeStatement[1] - 1;
+		source.replace(dep.rangeStatement[0], replaceUntil, content);
+	}
+};
+
+module.exports = HarmonyExportHeaderDependency;