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node_modules/webpack/lib/ExportsInfoApiPlugin.js

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+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Tobias Koppers @sokra
+*/
+
+"use strict";
+
+const ConstDependency = require("./dependencies/ConstDependency");
+const ExportsInfoDependency = require("./dependencies/ExportsInfoDependency");
+
+/** @typedef {import("./Compiler")} Compiler */
+/** @typedef {import("./javascript/JavascriptParser")} JavascriptParser */
+
+class ExportsInfoApiPlugin {
+	/**
+	 * Apply the plugin
+	 * @param {Compiler} compiler the compiler instance
+	 * @returns {void}
+	 */
+	apply(compiler) {
+		compiler.hooks.compilation.tap(
+			"ExportsInfoApiPlugin",
+			(compilation, { normalModuleFactory }) => {
+				compilation.dependencyTemplates.set(
+					ExportsInfoDependency,
+					new ExportsInfoDependency.Template()
+				);
+				/**
+				 * @param {JavascriptParser} parser the parser
+				 * @returns {void}
+				 */
+				const handler = parser => {
+					parser.hooks.expressionMemberChain
+						.for("__webpack_exports_info__")
+						.tap("ExportsInfoApiPlugin", (expr, members) => {
+							const dep =
+								members.length >= 2
+									? new ExportsInfoDependency(
+											expr.range,
+											members.slice(0, -1),
+											members[members.length - 1]
+									  )
+									: new ExportsInfoDependency(expr.range, null, members[0]);
+							dep.loc = expr.loc;
+							parser.state.module.addDependency(dep);
+							return true;
+						});
+					parser.hooks.expression
+						.for("__webpack_exports_info__")
+						.tap("ExportsInfoApiPlugin", expr => {
+							const dep = new ConstDependency("true", expr.range);
+							dep.loc = expr.loc;
+							parser.state.module.addPresentationalDependency(dep);
+							return true;
+						});
+				};
+				normalModuleFactory.hooks.parser
+					.for("javascript/auto")
+					.tap("ExportsInfoApiPlugin", handler);
+				normalModuleFactory.hooks.parser
+					.for("javascript/dynamic")
+					.tap("ExportsInfoApiPlugin", handler);
+				normalModuleFactory.hooks.parser
+					.for("javascript/esm")
+					.tap("ExportsInfoApiPlugin", handler);
+			}
+		);
+	}
+}
+
+module.exports = ExportsInfoApiPlugin;