Method _createIdentifier

lib/optimize/ConcatenatedModule.js:1351–1370

* @param {Module} rootModule the root module of the concatenation * @param {Set<Module>} modules all modules in the concatenation (including the root module) * @param {AssociatedObjectForCache=} associatedObjectForCache object for caching * @param {HashFunction=} hashFunction hash function to

(
		rootModule,
		modules,
		associatedObjectForCache,
		hashFunction = DEFAULTS.HASH_FUNCTION
	)

	 * @returns {string} the identifier
	 */
	static _createIdentifier(
		rootModule,
		modules,
		associatedObjectForCache,
		hashFunction = DEFAULTS.HASH_FUNCTION
	) {
		const cachedMakePathsRelative = makePathsRelative.bindContextCache(
			/** @type {string} */ (rootModule.context),
			associatedObjectForCache
		);
		/** @type {string[]} */
		const identifiers = [];
		for (const module of modules) {
			identifiers.push(cachedMakePathsRelative(module.identifier()));
		}
		identifiers.sort();
		const hash = createHash(hashFunction);
		hash.update(identifiers.join(" "));
		return `${rootModule.identifier()}|${hash.digest("hex")}`;
	}

	/**
	 * Adds the provided file dependencies to the module.