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rOACCT/node_modules/webpack/lib/JavascriptMetaInfoPlugin.js
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JavascriptMetaInfoPlugin.js
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			/*
			MIT License http://www.opensource.org/licenses/mit-license.php
			Author Sergey Melyukov @smelukov
			*/

			"use strict";

			const InnerGraph = require("./optimize/InnerGraph");

			/** @typedef {import("./Compiler")} Compiler */
			/** @typedef {import("./javascript/JavascriptParser")} JavascriptParser */

			class JavascriptMetaInfoPlugin {
			/**
			* Apply the plugin
			* @param {Compiler} compiler the compiler instance
			* @returns {void}
			*/
			apply(compiler) {
			compiler.hooks.compilation.tap(
			"JavascriptMetaInfoPlugin",
			(compilation, { normalModuleFactory }) => {
			/**
			* @param {JavascriptParser} parser the parser
			* @returns {void}
			*/
			const handler = parser => {
			parser.hooks.call.for("eval").tap("JavascriptMetaInfoPlugin", () => {
			parser.state.module.buildInfo.moduleConcatenationBailout = "eval()";
			parser.state.module.buildInfo.usingEval = true;
			const currentSymbol = InnerGraph.getTopLevelSymbol(parser.state);
			if (currentSymbol) {
			InnerGraph.addUsage(parser.state, null, currentSymbol);
			} else {
			InnerGraph.bailout(parser.state);
			}
			});
			parser.hooks.finish.tap("JavascriptMetaInfoPlugin", () => {
			let topLevelDeclarations =
			parser.state.module.buildInfo.topLevelDeclarations;
			if (topLevelDeclarations === undefined) {
			topLevelDeclarations =
			parser.state.module.buildInfo.topLevelDeclarations = new Set();
			}
			for (const name of parser.scope.definitions.asSet()) {
			const freeInfo = parser.getFreeInfoFromVariable(name);
			if (freeInfo === undefined) {
			topLevelDeclarations.add(name);
			}
			}
			});
			};

			normalModuleFactory.hooks.parser
			.for("javascript/auto")
			.tap("JavascriptMetaInfoPlugin", handler);
			normalModuleFactory.hooks.parser
			.for("javascript/dynamic")
			.tap("JavascriptMetaInfoPlugin", handler);
			normalModuleFactory.hooks.parser
			.for("javascript/esm")
			.tap("JavascriptMetaInfoPlugin", handler);
			}
			);
			}
			}

			module.exports = JavascriptMetaInfoPlugin;