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1730fea206
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docs: Add comprehensive modularization implementation plan
Create 5-document modularization strategy for 3 large source files:
- control_flow.rs (1,632 lines → 19 modules)
- generic_case_a.rs (1,056 lines → 7 modules)
- loopform_builder.rs (1,166 lines → 11 modules)
Documents included:
1. **README.md** (352 lines)
Navigation hub with overview, metrics, timeline, ROI analysis
2. **modularization-implementation-plan.md** (960 lines)
Complete 20-hour implementation guide with:
- Phase-by-phase breakdown (13 phases across 3 files)
- Hour-by-hour effort estimates
- Risk assessment matrices
- Success criteria (quantitative & qualitative)
- Public API changes (zero breaking changes)
3. **modularization-quick-start.md** (253 lines)
Actionable checklist with:
- Copy-paste verification commands
- Emergency rollback procedures
- Timeline and milestones
4. **modularization-directory-structure.md** (426 lines)
Visual guide with:
- Before/after directory trees
- File size metrics
- Import path examples
- Code quality comparison
5. **phase4-merge-function-breakdown.md** (789 lines)
Detailed implementation for most complex phase:
- 714-line merge_joinir_mir_blocks() → 6 focused modules
- 10 detailed implementation steps
- Common pitfalls and solutions
Key metrics:
- Total effort: 20 hours (2-3 weeks)
- Files: 9 → 37 focused modules
- Largest file: 1,632 → 180 lines (-89%)
- Backward compatible: Zero breaking changes
- ROI: Breakeven in 4 months (5 hrs/month saved)
Priority: control_flow.rs Phase 1-4 (high impact)
Safety: Fully reversible at each phase
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
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2025-12-05 20:13:31 +09:00 |
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