# design/

`docs/development/current/main/design/` は、長期参照する設計図（SSOT 寄り）を置く場所。

- 原則: “Phaseの作業ログ/完了報告” は `../phases/` に置く。
- 原則: “不具合調査ログ” は `../investigations/` に置く。

## 現役の設計図（入口）

- JoinIR の地図（navigation SSOT）: `docs/development/current/main/design/joinir-design-map.md`
- Join-Explicit CFG Construction（north star）: `docs/development/current/main/design/join-explicit-cfg-construction.md`
- EdgeCFG Flow Fragments（Structured→CFG lowering SSOT）: `docs/development/current/main/design/edgecfg-fragments.md`
- Catch / Cleanup / Async（設計メモ）: `docs/development/current/main/design/exception-cleanup-async.md`
- Loop Canonicalizer（設計 SSOT）: `docs/development/current/main/design/loop-canonicalizer.md`
- ControlTree / StepTree（構造SSOT）: `docs/development/current/main/design/control-tree.md`
- Normalized ExprLowerer（式の一般化 SSOT）: `docs/development/current/main/design/normalized-expr-lowering.md`