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7b0db59100
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feat(joinir): Phase 53 - SELFHOST-NORM-DEV-EXPAND implementation
Expanded selfhost dev Normalized target with 2 practical P2/P3 loop variations,
strengthened structural signature axis, and implemented two-stage detection.
Key Changes:
1. Documentation (phase49-selfhost-joinir-depth2-design.md +128 lines):
- Added Phase 53 section with candidate selection rationale
- Documented two-stage detector strategy (structural primary + dev-only name guard)
- Defined structural axis strengthening (carrier count/type, branch patterns)
2. Fixtures (+210 lines):
- selfhost_args_parse_p2.program.json (60 lines): P2 with String carrier + conditional branching
- selfhost_stmt_count_p3.program.json (150 lines): P3 with 5 carriers + multi-branch if-else
3. Structured Builders (fixtures.rs +48 lines):
- build_selfhost_args_parse_p2_structured_for_normalized_dev()
- build_selfhost_stmt_count_p3_structured_for_normalized_dev()
4. ShapeGuard Two-Stage Detection (shape_guard.rs +80 lines):
- Added SelfhostArgsParseP2/SelfhostStmtCountP3 to NormalizedDevShape enum
- Implemented is_selfhost_args_parse_p2(): P2 core family + name guard
- Implemented is_selfhost_stmt_count_p3(): 2-10 carrier check + name guard
- Updated capability_for_shape() mappings
5. Bridge Integration (bridge.rs +8 lines, normalized.rs +10 lines):
- Added shape handlers delegating to existing normalizers
- Added roundtrip reconstruction handlers
6. Entry Point Registration (ast_lowerer/mod.rs +2 lines):
- Registered selfhost_args_parse_p2/selfhost_stmt_count_p3 as LoopFrontend routes
7. Dev VM Comparison Tests (normalized_joinir_min.rs +40 lines):
- normalized_selfhost_args_parse_p2_vm_bridge_direct_matches_structured()
- normalized_selfhost_stmt_count_p3_vm_bridge_direct_matches_structured()
8. Test Context Fix (dev_env.rs):
- Added thread-local test context depth counter
- Fixed deadlock in nested test_ctx() calls via reentrant with_dev_env_if_unset()
Structural Axis Growth:
P2 family:
- Carrier count: 1-3 (unchanged)
- NEW: Type diversity (Integer/String mixed)
- NEW: Conditional branching patterns (Eq-heavy comparisons)
P3 family:
- NEW: Carrier count upper bound: 2-10 (was 2-4)
- NEW: Multi-branch if-else (5+ branches with nested structure)
- NEW: Complex conditional patterns
Test Results:
- normalized_dev: 40/40 PASS (including 2 new tests)
- lib regression: 939 PASS, 56 ignored
- Existing behavior unchanged (normalized_dev feature-gated)
Phase 53 Achievements:
✅ P2/P3 each gained 1 practical variation (2 total)
✅ Two-stage detection: structural primary + dev-only name guard
✅ Structural axis expanded: 4 axes (carrier count/type/Compare/branch patterns)
✅ All tests PASS, no regressions
✅ Test context deadlock fixed (0.04s for 29 tests)
Files Modified: 14 files
Lines Added: ~516 lines (net)
Implementation: Pure additive (feature-gated)
Next Phase (54+):
- Accumulate 6+ loops per P2/P3 family
- Achieve 5+ stable structural axes
- Target < 5% false positive rate
- Then shrink/remove name guard scope
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2025-12-12 16:40:20 +09:00 |
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4ecb6435d3
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docs(joinir): Phase 48 - Normalized P4 (Continue) design
Complete design documentation for Pattern4 (continue) Normalized support,
extending unified Normalized infrastructure to all 4 loop patterns.
Design documents:
- phase48-norm-p4-design.md: Complete P4 Normalized design (380 lines)
- Key insight: continue = immediate TailCallFn(loop_step, ...) (no new instruction!)
- Infrastructure reuse: 95%+ from P2/P3 (only ContinueCheck step kind new)
- Target loops prioritized:
- ◎ _parse_array (skip whitespace) - PRIMARY (Phase 48-A)
- ○ _parse_object (skip whitespace) - Extended
- △ _unescape_string, _parse_string - Later
- Control flow: ContinueCheck before Updates (skip processing early)
- Same EnvLayout/ConditionEnv/CarrierInfo/ExitLine as P2/P3
- Implementation strategy: dev-only → canonical (proven approach)
Architecture:
- Unified Normalized for P1/P2/P3/P4 (all patterns same pipeline)
- P4 uses loop_step(env, k_exit) skeleton (same as P2/P3)
- continue semantics: TailCallFn = skip to next iteration (CPS natural fit)
Benefits:
- 95% infrastructure reuse from P2/P3
- No new JpInst needed (continue = existing TailCallFn)
- Incremental rollout (dev → canonical)
- Clear semantic: continue = immediate recursion
Implementation roadmap:
- Phase 48-A: Minimal continue (dev-only)
- Phase 48-B: Extended patterns (multi-carrier)
- Phase 48-C: Canonical promotion
Updates:
- joinir-architecture-overview.md: Added Phase 48 section
- CURRENT_TASK.md: Phase 48 entry (Design Complete)
- phase47-norm-p3-design.md: Minor formatting
Status: Design phase complete (doc-only, no implementation yet)
Next: Phase 48-A implementation (when requested)
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2025-12-12 06:06:39 +09:00 |
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