# Sprint 49: C/C++ Language Support Integration Status

## Overview

This document summarizes the integration status of C/C++ language support in the PMAT toolkit. The implementation focuses on providing AST-based analysis capabilities for C and C++ source files, enabling complexity analysis, function extraction, and deep context generation.

## Implementation Status

### ✅ Core Functionality

- **Language Analyzers**:
  - Implemented `analyze_c_file` and `analyze_cpp_file` in `services/ast/languages/{c,cpp}.rs`
  - Functions extract declarations, structs, and calculate complexity metrics
  - Support multiple C/C++ coding styles and constructs

- **AST Strategy Pattern**:
  - Implemented `CStrategy` and `CppStrategy` in `services/ast/languages/c_cpp_strategy.rs`
  - Implemented `AstStrategy` trait for C/C++ strategies
  - Connected to AST registry for automatic language detection

- **Deep Context Generation**:
  - Added C/C++ support to `deep_context.rs` for holistic codebase analysis
  - Integrated with file context generation pipeline

- **Complexity Analysis**:
  - Implemented cyclomatic and cognitive complexity calculation for C/C++ constructs
  - Integrated with FileComplexityMetrics for standardized reporting

### 🔄 Work in Progress

- **Unified Context Builder**:
  - The unified_context_builder integration has some structure field mismatches
  - These don't affect core functionality but should be fixed in a follow-up PR

- **Test Coverage**:
  - More comprehensive tests for C/C++ code patterns needed
  - Edge cases like templates, macros need more thorough testing

### 📋 Future Work

- **Advanced C++ Features**:
  - Template analysis and specialization detection
  - STL container usage analysis
  - Modern C++ (C++14/17/20) specific features

- **Preprocessor Integration**:
  - Better handling of preprocessor directives
  - Macro expansion and analysis

## Technical Details

### Language Detection

C/C++ files are detected by extensions:
- C: `.c`, `.h`
- C++: `.cpp`, `.cc`, `.cxx`, `.hpp`, `.hxx`, `.hh`

### AST Extraction

The analyzers extract:
- Functions (with visibility)
- Structs/Classes
- Namespaces (C++)
- Class methods (C++)
- Enums

### Integration Points

1. File detection in `context.rs`
2. AST strategies in `services/ast/mod.rs`
3. Analysis in `services/ast/languages/{c,cpp}.rs`
4. Deep context in `services/deep_context.rs`

## Testing

Basic tests have been implemented and pass successfully, but more comprehensive testing is needed, especially for complex C++ code patterns.

## Documentation

The implementation is documented in:
- Code comments
- This status document
- `docs/architecture/DOCUMENTATION_ORGANIZATION_SUMMARY.md`

## Next Steps

1. Fix remaining issues in unified_context_builder.rs (low priority)
2. Add more comprehensive test cases for C++ features
3. Improve header file analysis
4. Document user-facing features in CLI guide