Function createDeprecation

lib/util/deprecation.js:31–41

(message, code)

 * @returns {() => void} function to trigger deprecation
 */
const createDeprecation = (message, code) => {
	const cached = deprecationCache.get(message);
	if (cached !== undefined) return cached;
	const fn = util.deprecate(
		() => {},
		message,
		`DEP_WEBPACK_DEPRECATION_${code}`
	);
	deprecationCache.set(message, fn);
	return fn;
};

/** @typedef {"concat" | "entry" | "filter" | "find" | "findIndex" | "includes" | "indexOf" | "join" | "lastIndexOf" | "map" | "reduce" | "reduceRight" | "slice" | "some"} COPY_METHODS_NAMES */