Method _readRecords

lib/Compiler.js:1215–1251

* Processes the provided error callback. * @param {ErrorCallback} callback signals when the call finishes * @returns {void}

(callback)

	 * @returns {void}
	 */
	_readRecords(callback) {
		if (!this.recordsInputPath) {
			this.records = {};
			return callback(null);
		}
		/** @type {InputFileSystem} */
		(this.inputFileSystem).stat(this.recordsInputPath, (err) => {
			// It doesn't exist
			// We can ignore this.
			if (err) return callback(null);

			/** @type {InputFileSystem} */
			(this.inputFileSystem).readFile(
				/** @type {string} */
				(this.recordsInputPath),
				(err, content) => {
					if (err) return callback(err);

					try {
						this.records =
							/** @type {Records} */
							(parseJson(/** @type {Buffer} */ (content).toString("utf8")));
					} catch (parseErr) {
						return callback(
							new Error(
								`Cannot parse records: ${
									/** @type {Error} */ (parseErr).message
								}`
							)
						);
					}

					return callback(null);
				}
			);
		});
	}

	/**
	 * Creates a child compiler.