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rOACCT/node_modules/@babel/helper-create-class-features-plugin/lib/features.js
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features.js
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			"use strict";

			Object.defineProperty(exports, "__esModule", {
			value: true
			});
			exports.enableFeature = enableFeature;
			exports.isLoose = isLoose;
			exports.verifyUsedFeatures = verifyUsedFeatures;
			exports.FEATURES = void 0;

			var _decorators = require("./decorators");

			const FEATURES = Object.freeze({
			fields: 1 << 1,
			privateMethods: 1 << 2,
			decorators: 1 << 3,
			privateIn: 1 << 4
			});
			exports.FEATURES = FEATURES;
			const featuresSameLoose = new Map([[FEATURES.fields, "@babel/plugin-proposal-class-properties"], [FEATURES.privateMethods, "@babel/plugin-proposal-private-methods"], [FEATURES.privateIn, "@babel/plugin-proposal-private-private-property-in-object"]]);
			const featuresKey = "@babel/plugin-class-features/featuresKey";
			const looseKey = "@babel/plugin-class-features/looseKey";
			const looseLowPriorityKey = "@babel/plugin-class-features/looseLowPriorityKey/#__internal__@babel/preset-env__please-overwrite-loose-instead-of-throwing";

			function enableFeature(file, feature, loose) {
			if (!hasFeature(file, feature) \|\| canIgnoreLoose(file, feature)) {
			file.set(featuresKey, file.get(featuresKey) \| feature);

			if (loose === "#__internal__@babel/preset-env__prefer-true-but-false-is-ok-if-it-prevents-an-error") {
			setLoose(file, feature, true);
			file.set(looseLowPriorityKey, file.get(looseLowPriorityKey) \| feature);
			} else if (loose === "#__internal__@babel/preset-env__prefer-false-but-true-is-ok-if-it-prevents-an-error") {
			setLoose(file, feature, false);
			file.set(looseLowPriorityKey, file.get(looseLowPriorityKey) \| feature);
			} else {
			setLoose(file, feature, loose);
			}
			}

			let resolvedLoose;
			let higherPriorityPluginName;

			for (const [mask, name] of featuresSameLoose) {
			if (!hasFeature(file, mask)) continue;
			const loose = isLoose(file, mask);

			if (canIgnoreLoose(file, mask)) {
			continue;
			} else if (resolvedLoose === !loose) {
			throw new Error("'loose' mode configuration must be the same for @babel/plugin-proposal-class-properties, " + "@babel/plugin-proposal-private-methods and " + "@babel/plugin-proposal-private-property-in-object (when they are enabled).");
			} else {
			resolvedLoose = loose;
			higherPriorityPluginName = name;
			}
			}

			if (resolvedLoose !== undefined) {
			for (const [mask, name] of featuresSameLoose) {
			if (hasFeature(file, mask) && isLoose(file, mask) !== resolvedLoose) {
			setLoose(file, mask, resolvedLoose);
			console.warn(`Though the "loose" option was set to "${!resolvedLoose}" in your @babel/preset-env ` + `config, it will not be used for ${name} since the "loose" mode option was set to ` + `"${resolvedLoose}" for ${higherPriorityPluginName}.\nThe "loose" option must be the ` + `same for @babel/plugin-proposal-class-properties, @babel/plugin-proposal-private-methods ` + `and @babel/plugin-proposal-private-property-in-object (when they are enabled): you can ` + `silence this warning by explicitly adding\n` + `\t["${name}", { "loose": ${resolvedLoose} }]\n` + `to the "plugins" section of your Babel config.`);
			}
			}
			}
			}

			function hasFeature(file, feature) {
			return !!(file.get(featuresKey) & feature);
			}

			function isLoose(file, feature) {
			return !!(file.get(looseKey) & feature);
			}

			function setLoose(file, feature, loose) {
			if (loose) file.set(looseKey, file.get(looseKey) \| feature);else file.set(looseKey, file.get(looseKey) & ~feature);
			file.set(looseLowPriorityKey, file.get(looseLowPriorityKey) & ~feature);
			}

			function canIgnoreLoose(file, feature) {
			return !!(file.get(looseLowPriorityKey) & feature);
			}

			function verifyUsedFeatures(path, file) {
			if ((0, _decorators.hasOwnDecorators)(path.node)) {
			if (!hasFeature(file, FEATURES.decorators)) {
			throw path.buildCodeFrameError("Decorators are not enabled." + "\nIf you are using " + '["@babel/plugin-proposal-decorators", { "legacy": true }], ' + 'make sure it comes before "@babel/plugin-proposal-class-properties" ' + "and enable loose mode, like so:\n" + '\t["@babel/plugin-proposal-decorators", { "legacy": true }]\n' + '\t["@babel/plugin-proposal-class-properties", { "loose": true }]');
			}

			if (path.isPrivate()) {
			throw path.buildCodeFrameError(`Private ${path.isClassMethod() ? "methods" : "fields"} in decorated classes are not supported yet.`);
			}
			}

			if (path.isPrivate() && path.isMethod()) {
			if (!hasFeature(file, FEATURES.privateMethods)) {
			throw path.buildCodeFrameError("Class private methods are not enabled.");
			}
			}

			if (path.isPrivateName() && path.parentPath.isBinaryExpression({
			operator: "in",
			left: path.node
			})) {
			if (!hasFeature(file, FEATURES.privateIn)) {
			throw path.buildCodeFrameError("Private property in checks are not enabled.");
			}
			}

			if (path.isProperty()) {
			if (!hasFeature(file, FEATURES.fields)) {
			throw path.buildCodeFrameError("Class fields are not enabled.");
			}
			}
			}