nyash-codex fa8a96a51b docs(joinir): Phase 187 LoopBuilder Physical Removal - Completion Documentation ...

## Changes
- Added Phase 187 section to Phase 180 README documenting complete LoopBuilder deletion
- Documented all 4 tasks completion (187-1 through 187-4)
- Added architectural impact analysis before/after Phase 187
- Documented code deletion summary and archival strategy
- Explained NYASH_LEGACY_LOOPBUILDER variable status after deletion

## Key Achievements
- LoopBuilder module (8 files, ~1000+ lines) completely deleted
- IfInLoopPhiEmitter preserved in minimal new module
- JoinIR Frontend is now sole authoritative loop lowering system
- Explicit failures replace implicit fallbacks

## Architectural Impact
- Single authoritative path (JoinIR Frontend)
- No implicit fallbacks
- Future JoinIR expansion is only way forward
- Fail-Fast principle enforced at architecture level

## Related Phases
- Phase 185: Strict mode semantics unified
- Phase 186: Hard freeze with access control guard
- Phase 187: Physical module deletion (this change)

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

Co-Authored-By: Claude <noreply@anthropic.com>

2025-12-04 23:51:49 +09:00

..

calls

fix(vm): Phase 173-B using-imported static box method calls

2025-12-04 18:49:10 +09:00

emission

feat(constant): Phase 84-1 Add type annotations for all constant types

2025-12-02 18:42:21 +09:00

emit_guard

chore: Phase 25.1 完了 - LoopForm v2/Stage1 CLI/環境変数削減 + Phase 26-D からの変更

2025-11-21 06:25:17 +09:00

metadata

Span trace utilities and runner source hint

2025-11-24 14:17:02 +09:00

observe

feat(runtime): Phase 103 CoreServices Optional化 - Memory Constraints対応

2025-12-03 13:59:06 +09:00

origin

chore: Phase 25.1 完了 - LoopForm v2/Stage1 CLI/環境変数削減 + Phase 26-D からの変更

2025-11-21 06:25:17 +09:00

rewrite

feat(naming): Phase 21.7++ Phase 3 完全達成 - Builder 側 StaticMethodId SSOT 統一

2025-11-22 02:43:45 +09:00

router

chore: Phase 25.1 完了 - LoopForm v2/Stage1 CLI/環境変数削減 + Phase 26-D からの変更

2025-11-21 06:25:17 +09:00

schedule

chore: Phase 25.1 完了 - LoopForm v2/Stage1 CLI/環境変数削減 + Phase 26-D からの変更

2025-11-21 06:25:17 +09:00

ssa

Span trace utilities and runner source hint

2025-11-24 14:17:02 +09:00

types

chore: Phase 25.1 完了 - LoopForm v2/Stage1 CLI/環境変数削減 + Phase 26-D からの変更

2025-11-21 06:25:17 +09:00

builder_calls.rs

feat(mir): Phase 25.1f完了 - Conservative PHI + ControlForm観測レイヤー

2025-11-18 18:56:35 +09:00

call_resolution.rs

chore: Phase 25.1 完了 - LoopForm v2/Stage1 CLI/環境変数削減 + Phase 26-D からの変更

2025-11-21 06:25:17 +09:00

context.rs

feat(phi): Phase 25.1 - BTreeMap移行 (21ファイル、80%決定性達成)

2025-11-22 05:33:40 +09:00

control_flow.rs

docs(joinir): Phase 187 LoopBuilder Physical Removal - Completion Documentation

2025-12-04 23:51:49 +09:00

decls.rs

Span trace utilities and runner source hint

2025-11-24 14:17:02 +09:00

exprs_call.rs

chore: Phase 25.1 完了 - LoopForm v2/Stage1 CLI/環境変数削減 + Phase 26-D からの変更

2025-11-21 06:25:17 +09:00

exprs_lambda.rs

fix(mir/builder): use function-local ValueId throughout MIR builder

2025-11-17 00:48:18 +09:00

exprs_peek.rs

feat(mir): Phase 63-6-1/2 MIR Phi type_hint field & JoinIR propagation

2025-11-30 04:35:40 +09:00

exprs_qmark.rs

chore: Phase 25.1 完了 - LoopForm v2/Stage1 CLI/環境変数削減 + Phase 26-D からの変更

2025-11-21 06:25:17 +09:00

exprs.rs

feat(parser): Phase 152-A - Grouped assignment expression (箱化モジュール化)

2025-12-04 13:32:58 +09:00

fields.rs

chore: Phase 25.1 完了 - LoopForm v2/Stage1 CLI/環境変数削減 + Phase 26-D からの変更

2025-11-21 06:25:17 +09:00

if_form.rs

docs(joinir): Phase 187 LoopBuilder Physical Removal - Completion Documentation

2025-12-04 23:51:49 +09:00

lifecycle.rs

feat(joinir): Phase 84-5 if_phi.rs レガシーフォールバック完全削除

2025-12-02 21:09:15 +09:00

loop_frontend_binding.rs

fix(test): Update test_local_declarations_with_acc for Phase 56 MethodCall change

2025-12-04 10:33:47 +09:00

loops.rs

chore: Phase 25.1 完了 - LoopForm v2/Stage1 CLI/環境変数削減 + Phase 26-D からの変更

2025-11-21 06:25:17 +09:00

method_call_handlers.rs

Span trace utilities and runner source hint

2025-11-24 14:17:02 +09:00

name_const.rs

chore: Phase 25.1 完了 - LoopForm v2/Stage1 CLI/環境変数削減 + Phase 26-D からの変更

2025-11-21 06:25:17 +09:00

ops.rs

Span trace utilities and runner source hint

2025-11-24 14:17:02 +09:00

phi_merge.rs

refactor(phi): Phase 58 ConservativeMerge inline into merge_all_vars

2025-11-29 09:14:24 +09:00

phi.rs

feat(joinir): Phase 84-5 if_phi.rs レガシーフォールバック完全削除

2025-12-02 21:09:15 +09:00

plugin_sigs.rs

refactor: centralize box type metadata

2025-09-11 05:22:52 +09:00

receiver.rs

chore: Phase 25.1 完了 - LoopForm v2/Stage1 CLI/環境変数削減 + Phase 26-D からの変更

2025-11-21 06:25:17 +09:00

stmts.rs

Normalize passes keep spans and clean warnings

2025-11-24 15:02:51 +09:00

type_registry.rs

feat(runtime): Phase 103 CoreServices Optional化 - Memory Constraints対応

2025-12-03 13:59:06 +09:00

utils.rs

feat(runtime): Phase 87 CoreBoxId/CoreMethodId 箱化完了

2025-12-02 22:22:32 +09:00

vars.rs

feat(parser): Phase 152-A - Grouped assignment expression (箱化モジュール化)

2025-12-04 13:32:58 +09:00