Function isMetaUrl

lib/url/URLParserPlugin.js:43–57

(parser, arg)

 * @returns {boolean} true when it is `meta.url`, otherwise false
 */
const isMetaUrl = (parser, arg) => {
	const chain = parser.extractMemberExpressionChain(arg);

	if (
		chain.members.length !== 1 ||
		chain.object.type !== "MetaProperty" ||
		chain.object.meta.name !== "import" ||
		chain.object.property.name !== "meta" ||
		chain.members[0] !== "url"
	) {
		return false;
	}

	return true;
};

/** @type {WeakMap<NewExpressionNode, BasicEvaluatedExpression | undefined>} */
const getEvaluatedExprCache = new WeakMap();