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hakorune/docs/development/roadmap/phases/phase-15/imports-namespace-plan.md
Selfhosting Dev d90216e9c4 📚 Phase 15 - セルフホスティング戦略の明確化とEXE-first実装
## 主な変更点

### 🎯 戦略の転換と明確化
- PyVMを開発ツールとして位置づけ(本番経路ではない)
- EXE-first戦略を明確に優先(build_compiler_exe.sh実装済み)
- Phase順序の整理: 15.2(LLVM)→15.3(コンパイラ)→15.4(VM)

### 🚀 セルフホスティング基盤の実装
- apps/selfhost-compiler/にNyashコンパイラMVP実装
  - compiler.nyash: メインエントリー(位置引数対応)
  - boxes/: parser_box, emitter_box, debug_box分離
- tools/build_compiler_exe.sh: ネイティブEXEビルド+dist配布
- Python MVPパーサーStage-2完成(local/if/loop/call/method/new)

### 📝 ドキュメント整備
- Phase 15 README/ROADMAP更新(Self-Hosting優先明記)
- docs/guides/exe-first-wsl.md: WSLクイックスタート追加
- docs/private/papers/: 論文G~L、爆速事件簿41事例収録

### 🔧 技術的改善
- JSON v0 Bridge: If/Loop PHI生成実装(ChatGPT協力)
- PyVM/llvmliteパリティ検証スイート追加
- using/namespace機能(gated実装、Phase 15では非解決)

## 次のステップ
1. パーサー無限ループ修正(未実装関数の実装)
2. EXEビルドとセルフホスティング実証
3. c0→c1→c1'ブートストラップループ確立

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>
2025-09-15 18:44:49 +09:00

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Phase 15.3 — Imports/Namespace/nyash.toml Plan

Status: 15.3 planning; focus remains on Stage1/2 compiler MVP. This document scopes when and how to bring nyash.toml/include/import/namespace into the selfhost path without destabilizing parity.

Goals

  • Keep runnerlevel nyash.toml parsing/resolution as the source of truth during 15.3.
  • Accept using/import syntax in the Ny compiler as a noop (record only) until resolution is delegated.
  • Avoid VM changes; resolution happens before codegen.

Scope & Sequence (Phase 15.3)

  1. Stage1/2 compiler stability (primary)
    • Ny→JSON v0 → Bridge → PyVM/llvmlite parity maintained
    • PHI merge remains on Bridge (If/Loop)
  2. Imports/Namespace minimal acceptance (15.3late)
    • Parse using ns / using "path" [as alias] as statements in the Ny compiler
    • Do not resolve; emit no JSON entries (or emit metadata) — runner continues to strip/handle
    • Gate via NYASH_ENABLE_USING=1
  3. Runner remains in charge
    • Keep existing Rust runners using stripping + modules registry population
    • nyash.toml parsing stays in Rust (Phase 15)

Out of scope (Phase 15)

  • Porting nyash.toml parsing to Ny
  • Crossmodule codegen/linking in Ny compiler
  • Advanced include resolution / package graph

Acceptance (15.3)

  • Ny compiler can lex/parse using forms without breaking Stage1/2 programs
  • Runner path (Rust) continues to resolve using and nyash.toml as before (parity unchanged)

Looking ahead (MIR18 / Phase 16)

  • Evaluate moving nyash.toml parsing to Ny as a library box (ConfigBox)
  • Unify include/import/namespace into a single resolver pass in Ny with a small JSON side channel back to the runner
  • Keep VM unchanged; all resolution before MIR build

Switches

  • NYASH_ENABLE_USING=1 — enable using acceptance in Ny compiler (no resolution)
  • NYASH_SKIP_TOML_ENV=1 — skip applying [env] in nyash.toml (existing)