Scriptable properties (ECS-safe subset): @Computed and @OnSpawn

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Adds two annotations that give properties/models a scriptable feel WITHOUT
reattaching behavior to data — both reduce to code the data-oriented model
already emits:

- @Computed field on a property: a derived value that is NOT stored; x.field
  expands inline to its expression (bare names read as fields of x) at each use.
  Zero storage, zero runtime dispatch. Reuses qualify_fields (now non-destructive,
  base-node based); a g_computed registry keeps derived fields out of the layout.
- @OnSpawn(Model) on a handler: a constructor that runs at each spawn of Model
  with the model's properties bound by name. Spawn statically knows the model, so
  no runtime dispatch; emit_spawn binds the properties and inlines the hook body.

examples/annotations.ludic now exercises @Handles/@Queries/@Computed/@OnSpawn
(output 3 25 0 0); test.sh 15/15, fixpoint holds, goldens byte-identical.

Deferred (need more machinery, by design): @OnDespawn (despawn doesn't statically
know the entity's model) and @OnChange (needs change-tracking).

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

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This commit is contained in:

Orkun ÇAKILKAYA 2026-08-27 21:01:32 +03:00

parent ecead0564e

commit 1951af99e9

9 changed files with 4177 additions and 3503 deletions

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