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nyash-codex e326e787a4 release: v21.0.0 – Full Self‑Hosting (S1/S2/S3 complete)

- DoD met: S1/S2 determinism (const/compare/threeblock-collect), PRIMARY hv1 inline no-fallback, S3 (llvmlite+kernel) reps green
- Harness: v1→llvmlite direct, EXE links to libnyash_kernel.a
- Python LLVM builder fixes: cmp normalization, ret PHI synthesis, mir_call flat shape
- Using/alias polish (prod): modules-first; missing aliases added; duplicate using cleaned
- Docs: phase-21.0 COMPLETE; CurrentTask closed; release notes added

2025-11-06 16:59:34 +09:00

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Nyash Project – Changelog (Work in progress)

This changelog tracks high‑level milestones while Core MIR and Phase 12 evolve. For detailed per‑file history, see git log and docs under docs/development/roadmap/.

2025‑09‑06

Core‑13 flip complete: code/tests enforce Core‑13 minimal kernel. Normalizations (Array/Ref→BoxCall, TypeCheck/Cast/Barrier/WeakRef unification) are ON by default via env (NYASH_MIR_CORE13=1). New tests validate normalization.
Docs synced: step‑50 marked done; DEV quickstart points to Core‑13 reference.

2025‑09‑04

Phase 12.7‑A complete: peek, continue, ? operator, lambda, field type annotations. Language reference updated.
Phase 12.7‑B (basic) complete: parser‑level desugaring for |>, ?., ??, +=/-=/*=/=, .. behind NYASH_SYNTAX_SUGAR_LEVEL.
Docs: language reference and Phase 12.7 README updated to reflect basic completion; extensions tracked under gated plan.
MIR Core migration: previously enforcing Core‑15 during transition; superseded by 2025‑09‑06 Core‑13 flip.

2025‑09‑03

Nyash ABI TypeBox integration stabilized across core boxes; differential tests added; loader defaults adjusted (builtin + plugins).

Notes

Core‑13 is canonical minimal kernel. Historical Core‑15 notes remain under docs/development/roadmap/ for reference.
Phase 12.7‑B desugaring is gated by NYASH_SYNTAX_SUGAR_LEVEL; tokenizer additions are non‑breaking.

2025‑09‑11 (Phase 15)

llvm: BoxCall arm cleanup — unreachable legacy block removed; arm now delegates solely to instructions::lower_boxcall.
llvm/docs: Documented LLVM lowering rules (StringBox i8* fast path, ExternCall ptr/handle selection, minimal fallback policy for string concat).
docs: Added ARCHITECTURE.md, LOWERING_LLVM.md, EXTERNCALL.md, PLUGIN_ABI.md.
nyrt: resolved plugin module duplication; build green.
builder: suppressed StringBox birth (constructed in LLVM path).

2025‑11‑06 — Phase 21.0 (Full Self‑Hosting)

Full Self‑Hosting achieved (DoD met):
- S1/S2 determinism: v1 emit for const/compare/threeblock‑collect repeats 3× with identical normalized hash.
- PRIMARY no‑fallback (hv1 inline): selfhost_v1 minimal Option‑A/B reps PASS (rc=42).
- S3 (llvmlite + Nyash Kernel link + run): ternary collect (rc=44) / map set→size (rc=1) PASS. Auto‑runs when LLVM18/llvmlite is present.
Harness/root changes:
- ny_mir_builder.sh routes v1 JSON directly to llvmlite harness; EXE links against libnyash_kernel.a.
- Python LLVM builder fixes: cmp field normalization (Lt/Le/… → < <= …), ret PHI synthesis (avoid ret=0), flat mir_call shape acceptance.
Using/alias polish (prod): modules mapping preferred; missing module aliases added (StrCast / MethodAliasPolicy). Duplicate using in VM extern_provider cleaned.
Docs: phase‑21.0 marked COMPLETE (Quick Verify updated). CURRENT_TASK closed.

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