spec: embedding-abi-m3 — frozen value layout + single ADT/record crossing + RC ownership contract (user-approved, grounding-check PASS 8/8); open in-flight [~]

2026-05-18 20:35:05 +02:00
parent 9a609aecc7
commit 1fbb9c433b
2 changed files with 678 additions and 4 deletions
@@ -263,7 +263,7 @@ work progresses.
    `docs/journals/2026-05-18-audit-embedding-abi-m2.md`;
    `docs/journals/2026-05-18-iter-embedding-abi-m2.tidy.md`.

- [ ] **\[milestone\]** Embedding ABI — M3: frozen value layout +
+- [~] **\[milestone\]** Embedding ABI — M3: frozen value layout +
  single ADT/record crossing + RC ownership contract. Host
  constructs a single-ctor record (Int/Float fields), passes it,
  the kernel returns a record the host reads and frees; the RC
@@ -275,9 +275,10 @@ work progresses.
  value crossing in/out. Coherent stop: a record in/out with
  alloc==free across many calls.
  - depends on: Embedding ABI — M2.
-  - context: 2026-05-18 chat. `runtime/rc.c`'s header already
-    anticipates this ("The ABI defined here is stable … unless
-    the layout itself shifts").
+  - context: `docs/specs/2026-05-18-embedding-abi-m3.md`
+    (user-approved, grounding-check PASS 8/8); 2026-05-18 chat.
+    `runtime/rc.c`'s header already anticipates this ("The ABI
+    defined here is stable … unless the layout itself shifts").

 - [ ] **\[milestone\]** Embedding ABI — M4: sequence crossing via
  the existing `List` ADT. Host builds a `List Record` per chunk;