solidjs / solid / 36930462618

76%

main: 89%

push

github

fix(signals): derived writes apply first, then derivations re-run (#3742)

A manual write to createSignal(fn) / createStore(fn) lands at once and never
re-runs the derivation on its own; a source change, in the same flush or
later, inside or outside an action, across a hold, re-runs it with the write
as `prev` (the store's draft). Reverses #2692's beta.11 same-tick precedence
(maintainer-approved): within a flush call order isn't observable, and for
stores a partial write dropped the whole fold. Supersedes #3740's
frame-scoped mask: the heap refusal, `_manualWriteTime` and the setter's
deleteFromHeap / DIRTY-CHECK clear are removed; REACTIVE_MANUAL_WRITE keeps
only its A34 proposal role. Refs #3733.

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

649 of 925 branches covered (70.16%)

Branch coverage included in aggregate %.

962 of 1195 relevant lines covered (80.5%)

27.83 hits per line