The compiler no longer emits reference-counting ops anywhere, and the format
reserves them. With Phase 3a's collector this completes the runtime half of
iteration 7b: spec success criteria 3 (no RC ops in any image, opcodes
reserved) and 6 (corpus ASan-clean) are met — `just oop-accept` is fully green.
- owner.ml: the rc machinery is deleted outright — rc_site/rc_op types, the
rcs table, fn_rcs/rc_groups/rc_escaped, record_rc, release_gc, gc_escape,
resolve_rc, and the clobber rule (its only consumer was elision). The
`push`-of-a-gc-value RC_INC special case is gone (the bug class cannot recur
without RC). Drop tables (owned + LGc kinds) are untouched — the gc mask is
what feeds the collector's root maps.
- emit.ml: emit_rc, the v_rc view, the escape-acquire anchor, and every
caller deleted; assignment displacing a traced value emits nothing (the VM's
store barrier owns it); scope-ended LGc handles clear their gc-mask bit so
root maps stay precise.
- .wob v4: WOB_VERSION 3 -> 4 in wob.h + emit.ml + disasm.ml + the runner's
loader battery; opcodes 27-28 removed from the enum/jump table/interpreter
and REJECTED by the loader like any unknown opcode.
- dump.ml: the == RC == owner-dump section is gone; 6 goldens re-blessed
(owner dumps lose the section, elision.wo's bc dump loses its RC ops).
- runner.ml: rc-table/ELIDED assertions deleted; the elision test now asserts
the WHOLE image contains no RC op; the table-contract sweep asserts rc ops
never appear.
- test_unwind.c: the rc-opcodes test becomes two — the loader rejects reserved
opcode 27, and an abandoned traced instance is freed by rt_destroy
(ASan-proven).
Verified: woc-test 540/0 + test_diag 14/0; runtime test + test-iso all suites
ASan/UBSan (test_unwind 12/0); cli_smoke; oop-e2e 79/0 (v4 images end to end);
employee 8/0; log-watcher 7/0; ring runs + reclaimed (freed=3) with zero RC
ops in its image; `just oop-accept` ALL CRITERIA MET.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
- 16 tasks complete: arena, object model, borrow word, containers,
RC + budgeted cycle collector, wob_build, validating loader,
interpreter core (dual dispatch), object opcodes, drop-map unwinding,
builtins + DB_STUB + TRAP, ICALL, wovm CLI + just recipes
- 13 test suites × 2 dispatch flavors (ASan+UBSan) + CLI smoke, all green
- .wob v1 format pinned in src/wob.h + docs/plan/oop-vm/00-wob-format.md
- wo-rt.c reference event-loop preserved for sub-project 2
This is Iteration 2 of the OOP milestone; compiler front (Iteration 3)
is in progress on this branch. They meet at Iteration 4 (emitter+e2e).
