Files

glm-5.1 c9c32a6aa6 decompose reconciler roadmap into 20 implementation tasks across 5 phases

Tasks follow the architecture spec phases:
- Phase 0: key field on UElement (2 tasks + review)
- Phase 1: reactive-host bridge / fiber tree (4 tasks + review)
- Phase 2: key-based children reconciliation (3 tasks + review)
- Phase 3: unmount & dispose support (4 tasks)
- Phase 4: TypeBox value optimizations (4 tasks)

Validated with taskgraph CLI: no cycles, 15 parallel generations,
3 high-risk tasks identified (signal-driven-updates, commit-mutations,
fiber-disposal).

2026-05-18 16:26:52 +00:00

1.7 KiB

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id, name, status, depends_on, created, modified, scope, risk, impact, level

name

status

depends_on

created

modified

scope

risk

impact

level

host-finalize-instance

Add finalizeInstance to HostConfig

pending

fiber-disposal

2026-05-18T16:22:57.323634873Z

2026-05-18T16:22:57.323635316Z

single

low

component

implementation

Description

Add the optional finalizeInstance?(instance: Instance, ctx: RootCtx): void method to the HostConfig interface. This method allows hosts to perform per-instance cleanup when an instance is removed (e.g., releasing GPU buffer slots, closing database connections, removing graphology nodes).

This is a backward-compatible change: the method is optional, so existing HostConfig implementations continue to work without modification. The reconciler calls finalizeInstance during disposeFiber after children are disposed but before the fiber's own state is cleared.

Acceptance Criteria

finalizeInstance?(instance: Instance, ctx: RootCtx): void added to HostConfig interface
Method is optional (existing hosts don't need to implement it)
Called by disposeFiber during fiber tree disposal
Called bottom-up: children's finalizeInstance before parent's
Updated in src/host/config.ts interface definition
TypeScript compiles (npm run build:tsc)
Existing tests pass (existing HostConfig implementations don't break)
New test: host implementing finalizeInstance receives calls during disposal

References

docs/architecture/lifecycle.md — Host Notification section, finalizeInstance interface
docs/architecture/host-config.md — Open Question 3 (should HostConfig include finalizeInstance)

Notes

To be filled by implementation agent

Summary

To be filled on completion

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