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node_modules/webpack/lib/dependencies/HarmonyTopLevelThisParserPlugin.js

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+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Florent Cailhol @ooflorent
+*/
+"use strict";
+
+const ConstDependency = require("./ConstDependency");
+
+class HarmonyTopLevelThisParserPlugin {
+	apply(parser) {
+		parser.hooks.expression
+			.for("this")
+			.tap("HarmonyTopLevelThisParserPlugin", node => {
+				if (!parser.scope.topLevelScope) return;
+				const module = parser.state.module;
+				const isHarmony = !!(module.buildMeta && module.buildMeta.exportsType);
+				if (isHarmony) {
+					const dep = new ConstDependency("undefined", node.range, false);
+					dep.loc = node.loc;
+					parser.state.current.addDependency(dep);
+				}
+			});
+	}
+}
+
+module.exports = HarmonyTopLevelThisParserPlugin;