Malte UblandClaude Opus 5.5 3c2911ccad Implement the identity TransformStream natively ...

'new TransformStream()' had no lowering, so hono's stream() and
streamSSE() helpers failed to compile their checked-dynamic paths. The
constructor without arguments now builds a native handle: its readable
side is a native ReadableStream with a zero high-water mark, and its
writable side runs the streams spec's WritableStream state machine
(getWriter, abort, close, locked; the writer's write, close, abort,
releaseLock, ready, closed and desiredSize). A write completes when the
readable side reads its chunk, close/abort/cancel propagate across the
pair, and deferred reactions take as many microtask turns as in Node.
Web ReadableStreams can also be weak collection keys (hono keys a
WeakMap by the response stream). A transformer, queuing strategies and
the WritableStream constructor keep the SC2020 refusal.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

2026-10-23 08:47:47 -07:00

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compatibility

Implement the identity TransformStream natively

2026-10-23 08:47:47 -07:00