Method close

examples/io/streams/modules/streams.js:2202–2209

()

		return WritableStreamAbort(stream, reason);
	}
	close() {
		const stream = WritableStreamBrand.get(this);
		if (IsWritableStreamLocked(stream))
			return Promise.reject(new TypeError("stream locked"));
		if (WritableStreamCloseQueuedOrInFlight(stream))
			return Promise.reject(new TypeError("stream closed"));
		return WritableStreamClose(stream);
	}
	getWriter() {
		return new WritableStreamDefaultWriter(this);
	}