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node_modules/webpack/lib/dependencies/DynamicExports.js

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+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Tobias Koppers @sokra
+*/
+
+"use strict";
+
+/** @typedef {import("../Module").BuildMeta} BuildMeta */
+/** @typedef {import("../Parser").ParserState} ParserState */
+
+/** @type {WeakMap<ParserState, boolean>} */
+const parserStateExportsState = new WeakMap();
+
+/**
+ * @param {ParserState} parserState parser state
+ * @returns {void}
+ */
+exports.bailout = parserState => {
+	const value = parserStateExportsState.get(parserState);
+	parserStateExportsState.set(parserState, false);
+	if (value === true) {
+		const buildMeta = /** @type {BuildMeta} */ (parserState.module.buildMeta);
+		buildMeta.exportsType = undefined;
+		buildMeta.defaultObject = false;
+	}
+};
+
+/**
+ * @param {ParserState} parserState parser state
+ * @returns {void}
+ */
+exports.enable = parserState => {
+	const value = parserStateExportsState.get(parserState);
+	if (value === false) return;
+	parserStateExportsState.set(parserState, true);
+	if (value !== true) {
+		const buildMeta = /** @type {BuildMeta} */ (parserState.module.buildMeta);
+		buildMeta.exportsType = "default";
+		buildMeta.defaultObject = "redirect";
+	}
+};
+
+/**
+ * @param {ParserState} parserState parser state
+ * @returns {void}
+ */
+exports.setFlagged = parserState => {
+	const value = parserStateExportsState.get(parserState);
+	if (value !== true) return;
+	const buildMeta = /** @type {BuildMeta} */ (parserState.module.buildMeta);
+	if (buildMeta.exportsType === "dynamic") return;
+	buildMeta.exportsType = "flagged";
+};
+
+/**
+ * @param {ParserState} parserState parser state
+ * @returns {void}
+ */
+exports.setDynamic = parserState => {
+	const value = parserStateExportsState.get(parserState);
+	if (value !== true) return;
+	/** @type {BuildMeta} */
+	(parserState.module.buildMeta).exportsType = "dynamic";
+};
+
+/**
+ * @param {ParserState} parserState parser state
+ * @returns {boolean} true, when enabled
+ */
+exports.isEnabled = parserState => {
+	const value = parserStateExportsState.get(parserState);
+	return value === true;
+};