solidjs / solid / 32930828285

72%

main: 89%

push

github

Apply store setter replacements on the server; optimistic writes are no-ops

The server createStore setter ran the function and discarded its return
value, so the documented replacement form (setStore(draft => next))
silently lost writes under node conditions while draft mutation worked
(#3064). Returned wrappables are now adopted into the same root as a
plain data operation, matching the client contract; array replacements
truncate correctly (fixing an array-shrink hole in projection sync
replacement too). Optimistic setters no longer alias plain writes:
optimistic writes are masks that revert at settle, and server output is
settled state, so they neither run nor land. Server writes remain
data-only — no re-render.

Co-authored-by: Cursor <cursoragent@cursor.com>

509 of 772 branches covered (65.93%)

Branch coverage included in aggregate %.

758 of 987 relevant lines covered (76.8%)

14.4 hits per line