25 lines
912 B
Markdown
25 lines
912 B
Markdown
# Phase 20.24 — Parser削除（Plan: A→B→C)
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Goal
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- Remove Rust parser/AST and switch to Hakorune parser with measurable safety.
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A. Gate & Validate（Done）
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- Wire `--parser=hako` to selfhost FlowEntry path
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- Add opt‑in parity canaries（quick: return/if/binop; integration: return）
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- Update quick allowlist with opt‑in toggle
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B. Observe & Stabilize（Pending）
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- Nightly parity on representative sources（5–10 cases）
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- Add CI job for quick parity (both backends)
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- Document known limitations and stable error wording
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C. Flip & Clean（Pending）
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- Default to Hakorune parser (Rust via ENV legacy only)
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- Archive→delete `src/parser/`, `src/ast/` after one release
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- Scrub imports; rebuild; full smoke; announce
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Notes
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- Fail‑Fast is mandatory; no silent fallbacks at the boundary.
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- CLI takes precedence; ENV is alias/opt‑in only.
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- Keep changes minimal and reversible between A→B.
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