Props diff and streams#54
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Ports live_vue's incremental props-diffing and Phoenix.LiveView stream
support into live_react. Structs now flow through a new LiveReact.Encoder
protocol (replacing raw Jason.Encoder) so they can be safely diffed;
Jsonpatch computes minimal prop diffs and a hand-rolled algorithm reads
Phoenix.LiveView.LiveStream inserts/deletes directly, delivering both as
compact patch operations over data-props-diff/data-streams-diff instead of
re-sending full props on every update. The client applies patches
copy-on-write so React.memo'd components correctly skip re-rendering
untouched data and re-render changed data.
- LiveReact.Patch: compact wire-format codec shared by both diff channels
- LiveReact.Encoder: struct -> map protocol (AsyncResult, UploadConfig,
UploadEntry, Phoenix.HTML.Form)
- react/1: LiveStream classification, props_diff via Jsonpatch.diff/3,
streams_diff computed from stream inserts/deletes/resets, diff={false}
per-component opt-out, enable_props_diff config (default true)
- Client: compactPatch.js/jsonPatch.js (copy-on-write patch application),
hooks.js persistent props/streams state across mounted/updated/
reconnected/destroyed
- New Vitest+jsdom test infrastructure for the client library
- Example stream-demo LiveView + React component (add/update/delete) for
manual verification
BREAKING CHANGE: data-props is now encoded via LiveReact.Encoder instead
of Jason.Encoder. Struct props must now `@derive LiveReact.Encoder` (or
implement it explicitly); plain maps are unaffected.
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