hakorune/selfhost-pilot.md at b8223554317627fd44d4131f69baf86cb94b930c

Files

nyash-codex d7805e5974 feat(joinir): Phase 213-2 Step 2-2 & 2-3 Data structure extensions

Extended PatternPipelineContext and CarrierUpdateInfo for Pattern 3 AST-based generalization.

Changes:
1. PatternPipelineContext:
   - Added loop_condition: Option<ASTNode>
   - Added loop_body: Option<Vec<ASTNode>>
   - Added loop_update_summary: Option<LoopUpdateSummary>
   - Updated build_pattern_context() for Pattern 3

2. CarrierUpdateInfo:
   - Added then_expr: Option<ASTNode>
   - Added else_expr: Option<ASTNode>
   - Updated analyze_loop_updates() with None defaults

Status: Phase 213-2 Steps 2-2 & 2-3 complete
Next: Create Pattern3IfAnalyzer to extract if statement and populate update summary

2025-12-10 00:01:53 +09:00

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Self‑Hosting Pilot — Quick Guide (Phase‑15)

Overview

Goal: Run Ny→JSON v0 via the selfhost compiler path and execute with PyVM/LLVM.
Default remains env‑gated for safety; CI runs smokes to build confidence.

Recommended Flows

Runner (pilot): NYASH_USE_NY_COMPILER=1 ./target/release/hakorune --backend vm apps/examples/string_p0.hako
Emit‑only: NYASH_USE_NY_COMPILER=1 NYASH_NY_COMPILER_EMIT_ONLY=1 ...
EXE‑first (parser EXE): tools/build_compiler_exe.sh && NYASH_USE_NY_COMPILER=1 NYASH_USE_NY_COMPILER_EXE=1 ./target/release/hakorune --backend vm apps/examples/string_p0.hako
LLVM AOT: NYASH_LLVM_USE_HARNESS=1 tools/build_llvm.sh apps/... -o app && ./app

CI Workflows

Selfhost Bootstrap (always): .github/workflows/selfhost-bootstrap.yml
- Builds nyash (cranelift-jit) and runs tools/bootstrap_selfhost_smoke.sh.
Selfhost EXE‑first（optional）
- crate 直結（ny-llvmc）で JSON→EXE→実行までを最短経路で確認できるよ。
- 手順（ローカル）:
  1. MIR(JSON) を出力: ./target/release/hakorune --emit-mir-json tmp/app.json --backend mir apps/tests/ternary_basic.hako
  2. EXE 生成: ./target/release/ny-llvmc --in tmp/app.json --emit exe --nyrt target/release --out tmp/app
  3. 実行: ./tmp/app（戻り値が exit code）
- ワンコマンドスモーク: bash tools/crate_exe_smoke.sh apps/tests/ternary_basic.hako
- CLI で直接 EXE 出力: ./target/release/hakorune --emit-exe tmp/app --backend mir apps/tests/ternary_basic.hako
- Installs LLVM 18 + llvmlite, then runs tools/exe_first_smoke.sh.

Useful Env Flags

NYASH_USE_NY_COMPILER=1: Enable selfhost compiler pipeline.
NYASH_NY_COMPILER_EMIT_ONLY=1: Print JSON v0 only (no execution).
NYASH_NY_COMPILER_TIMEOUT_MS=4000: Child timeout (ms). Default 2000.
NYASH_USE_NY_COMPILER_EXE=1: Prefer external parser EXE.
NYASH_NY_COMPILER_EXE_PATH=<path>: Override EXE path.
NYASH_SELFHOST_READ_TMP=1: Child reads tmp/ny_parser_input.ny when supported.

Troubleshooting (short)

No Python found: install python3 (PyVM / harness).
No llvm-config-18: install LLVM 18 dev (see EXE‑first workflow).
llvmlite import error: python3 -m pip install llvmlite.
Parser child timeout: raise NYASH_NY_COMPILER_TIMEOUT_MS.
EXE‑first bridge mismatch: re‑run with NYASH_CLI_VERBOSE=1 and keep dist/nyash_compiler/sample.json for inspection.

Notes

JSON v0 schema is stable but not yet versioned; validation is planned.
Default backend vm maps to PyVM unless legacy VM features are enabled.

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