Function shutdownWithAction

examples/io/streams/modules/streams.js:930–949

(action, originalIsError, originalError)

		}

		function shutdownWithAction(action, originalIsError, originalError) {
			if (shuttingDown === true) {
				return;
			}
			shuttingDown = true;

			if (dest.state === 'writable' && WritableStreamCloseQueuedOrInFlight(dest) === false) {
				waitForWritesToFinish().then(doTheRest).catch(ignoreReason);
			}
			else {
				doTheRest();
			}

			function doTheRest() {
				action().then(
					() => finalize(originalIsError, originalError),
					newError => finalize(true, newError)
				);
			}
		}

		function shutdown(isError, error) {
			if (shuttingDown === true) {