Corrects a foundational error: "handler type unchanged -> retract skipped,
process diffs" was never actually true. StoreBind unconditionally calls
Dispatch.retractUnder before every re-dispatch (already stated in the
original dispatch model doc) -- Tag's old assert(v==nil) was taken at
face value and the general rule was wrongly back-derived from it.
Tag, Ref, Slot, and Attribute (the last three designed earlier this same
session) all inherited the flawed premise. Fixes across all four:
- Tag: rewritten around kTagMap/tagNameMap reference counting so
AddTag is entirely process's job, RemoveTag entirely retract's,
using a Contains hint to skip engine calls that would be immediately
redone. Also fixes the case where two independent Tag(...) values at
different positions share a name (union semantics, like className).
- Ref/Slot: drop the incorrect assert(v==nil), split into "retract
unbinds/destroys the old, process binds/mounts the new" with an
identity check on both sides to avoid spurious re-fire.
- Attribute: AttributeKeyHandler.retract gated on v==nil so ordinary
value updates don't flicker the attribute to nil; the group's
"unchanged name" delegation now also retracts before reprocessing,
since skipping it was silently stacking chain entries every cycle.
Reversal preserved in archive/retract-always-fires-reversed.md.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Group Attribute(...) delegating through the public memoized AttributeKey(name)
cache meant a direct [AttributeKey "name"]=v write and a group field (or two
independent groups) targeting the same name silently converged on the same
dispatch slot -- last write wins, no error. Fix: groups use rawNew(name) to
mint a private per-name key cached on their own (inst,index) relation instead
of the shared cache, so AttributeKeyHandler can detect a conflicting claimant
by simple object-identity comparison -- no separate ownership registry needed.
Persisting names reuse the same cached key across group value swaps, so the
existing diff (nil only what left, leave the rest alone) keeps working.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Completed 시 per-instance 북키핑 정리는 불필요 — 자연완료는 유저가 원한
목표값에 도달한 상태라 남은 참조가 부작용 없고, Value가 lerp 가능한
프리미티브라 메모리 문제도 없어 별도 정리 장치는 오버엔지니어링. 이걸로
tween-plan.md에 남은 열린 질문이 없어져 research/에서 base/로 승격,
라이브 크로스레퍼런스 전부 갱신.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Adds Attribute(store1, store2, ...) as a Tag-shaped array-part value
object that projects one or more Stores' named Source fields onto
native Roblox attributes in one binding, with .Merged for combining
heterogeneous Stores. Rejected: a bare [Attribute] = Store{...} hash
slot (only one slot per instance, can't merge heterogeneous stores)
and making Attribute a Store subtype (would let Store<T>'s T be a
Store again, colliding with the existing "handler-layer values can't
live in Source" rule). Verified the value-slot aggregation in .Merged
doesn't reopen the earlier "layered Store" rejection (archive/
context-rejected.md) since it's an explicit one-time author-time
composition, not an implicit read-time parent-chain fallback.
Renamed the existing single-key constructor Attribute<<T>>(name) to
AttributeKey<<T>>(name) to remove the name collision with the new
group primitive (provisional per existing OnChange/OnChangeKey
precedent; final bikeshed still queued in question.md).
Follow-up: AttributeKey(name) now memoizes through a name-keyed weak
table, guaranteeing AttributeKey(a) == AttributeKey(a) while any
strong reference (e.g. a live Dispatch chain entry) keeps it alive.
This let the group Attribute handler drop its originally-planned
self-contained SetAttribute/subscription logic and instead recurse
into the existing single-key AttributeKey dispatch path per field,
reusing its None/retract/store-bind handling instead of duplicating
it — the group handler's own state shrinks to just a prior-name-set
diff for deciding which keys to retractUnder. The same memoization
was applied to OnChangeKey for the same reason (pure name-to-key
mapping, no other varying state), confirmed safe even once
State<function> callbacks are involved.
Reflected across base/attribute-plan.md, base/onchange-plan.md,
base/architecture.md (source tree + Brand isX list), ROADMAP.md M2/M10,
question.md, README.md, and the luau-test type-narrowing spike.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
독립 Dispatch 핸들러("v가 Store인 아무 k나 잡는 우선순위 최상위 핸들러")
모델을 PropertyHandler가 소비하는 값-레벨 래퍼(Tween<T>)로 전환. State/
Source 언랩(범용 StoreBind)과 "이 값이 트윈 대상인가" 판단을 분리해,
일반 반응형 프로퍼티 바인딩이 Tween 파일을 거쳐가는지 불명확했던 구조적
모호함(pre-implementation-audit.md 1-1)을 해소.
- Tween.Value는 plain T만(반응성은 바깥 :Compute가 전담, 이중 경로 방지)
- hasBeenSet+활성 엔진 트윈을 3-상태 릴레이션 슬롯(RobloxTween|true|nil)
하나로 통합, 첫 세팅은 항상 애니메이션 없이 스냅
- 활성 트윈 정리 후에만 새 값 세팅(순서 뒤바뀌면 값이 덮어써질 위험)
- 타입은 T'=T|Tween<T> 치환만으로 기존 T|State<T> 모양에 자동 통합
- useTween은 :Apply(Animate(...))로 해소, 새 옵션 필드 불필요
- PropertyHandler가 항상 매치되는 유일한 핸들러가 되어 Tween↔프로퍼티
handler-switch에 의존하던 retract 케이스가 사라짐
구 모델은 archive/tween-special-bind-key-reversed.md로 보존. 코퍼스
전체(bind-system-plan.md/architecture.md/modifier-plan.md/ROADMAP.md/
question.md/README.md/attribute-plan.md)의 stale Tween 참조 동기화,
CLAUDE.md 세션 요약 추가.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
.claude/base/ 전체를 배치별로 리스팅해 사용자 확인을 받는 중간검토
세션 — Ref 콜백/대기자 배열의 None 소진이 무한 성장 버그였던 것을
nil로 되돌리고, isRef/isPreRef를 isState/isSource와 같은 상위-하위
합성으로 재정정, Slot CRUD 식별 기준을 element 레퍼런스에서 인덱스
기준으로 전환(ExtractAll/Get/IndexOf 신설), 컴포넌트 리프 바인딩에서
Source 직접 사용이 정상 경로라는 정정, Dispatch 직접 호출 UB 명시,
Tag retract 전제 명시, Attribute 타입 파라미터화 확정, EffectHandle
내부 Observer cascade/Subscribe GC 예외 경고 등을 반영. CLAUDE.md에
세션 요약, stale해진 research/documentation-content-map.md 일부 항목도
동기화.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01EYfAz3BsaTrmMM8hnzn6mj
