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writeonce/docs/stories/language-runtime-database/02-vm-core.md
shoney.arickathil c0b0dbb846 docs: audit all markdown against the code, fix findings, flatten status folders 
- README: shipped concurrency/HTTP/WebSockets sat in the roadmap as "not yet
  available"; "no package manager" contradicted [deps]; the deps example
  would not have compiled (the key IS the module name)
- runtime/README: leads with wovm, wo-rt.c demoted to a historical section;
  dropped 2 nonexistent recipes, crates/rt, @gc refcounting, 13 suites -> 18
- employee + log-watcher READMEs claimed "does not compile"; both are gates
- error catalog: +10 emitted codes incl WO-E250, the only diagnostic the
  shipped query surface raises; recorded why the sweep rotted
- language-surface: group-by parses, then the typechecker refuses it
- 00-code-review + 00-link-audit re-run; history kept, not rewritten
- 48 dead Rust-era exploration links de-linked rather than re-pointed (their
  prose names the retired plan by number); successor map -> discarded.md
- 08-project-structure: compiler/plan/ never existed; corpus has 9 dirs, 5 empty
- releasing.md: dropped a --draft step the workflow never had
- new docs/00-doc-audit.md: findings + disposition, incl one row where the
  audit was wrong and the doc it accused was right
- status folders removed: 34 stories flat, status only in frontmatter; 252
  links recomputed from resolved paths; board/board-views/structure retaught
- story 24 -> in-progress, since frontmatter is now the only truth
- new iteration 38: fs mutation verbs + net.connect, the two capability
  families no iteration owned
- new iteration 39: gofiber/fiber v3.5.0 parity study. The ledger called
  CSRF/sessions unblocked by iteration 34's HMAC, but the runtime has no
  source of randomness at all
- linkcheck skips .dev/.superpowers: 0 broken paths, 0 bad anchors

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-08-26 19:20:22 +02:00

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iteration status
2 done

Iteration 2 — VM core (wovm)

Format: product/story-iteration-template. Part of Story — one language, one runtime, one database, one binary.

Goals

  • A C, libc-only virtual machine that loads a .wob bytecode module and executes method calls with the language's memory model enforced: owned objects with deterministic drops, runtime borrow checks at residual sites, and @gc classes collected without stop-the-world pauses.
  • Arithmetic and text operations execute correctly — the language's first observable behavior.

Acceptance Criteria

  • What to achieve?
    • Given a hand-assembled .wob fixture with arithmetic and method calls,
    • when wovm loads and runs it,
    • then output matches the fixture's expectation and a corrupted image is rejected by the loader before any instruction executes.
  • What to achieve?
    • Given a fixture that acquires conflicting exclusive borrows,
    • when it runs,
    • then the VM traps with the borrow-violation code, unwinds running every drop, and ASan/Valgrind report zero leaks on both success and trap paths.
  • What to achieve?
    • Given a cyclic @gc object graph that becomes garbage,
    • when the collector's budgeted ticks run,
    • then the cycle is freed within the configured budget and no pause exceeds the configured slice.

Out Of Scope

  • The OCaml compiler (iteration 3) — fixtures here are assembled by the test tool, not compiled.
  • Threads, shards, mailboxes (iteration 8); any DB or HTTP capability.

Info

  • The 16-byte object header reserves a shard id now so iteration 8 needs no relayout.
  • Format contract: docs/plan/oop-vm/00-wob-format.md twinned with runtime/src/wob.h; ~40-op register instruction set, computed-goto dispatch.

Proposed Solution

  • Execute the existing plan: docs/superpowers/plans/2026-08-01-wob-format-and-vm-core.md (16 TDD tasks: arena, object model, borrow word, RC + cycle collector, test assembler, validating loader, interpreter, drop-map unwinding, builtins, CLI + just gate).