Re: [streams] Transform streams and acknowledgement of writes (#329)

Ownership movement

| w \ r | default | BYOB | with-ack |
|---|---|---|---|
| default | Passed from producer to consumer | Given to `id`. Consumer brings its own | Passed from producer to consumer. (Ack ignored) |
| retaining | Owned by producer. Copy given to consumer | Owned by producer and consumer respectively | Owned by producer (consumer borrows and returns) |
| beginWrite | Passed from `id` to producer and then to consumer | Owned by consumer (producer borrows and returns) | Passed from `id` to producer and then to consumer. (Ack ignored) |

---
Reply to this email directly or view it on GitHub:
https://github.com/whatwg/streams/issues/329#issuecomment-106713272