# Sprint 49: C/C++ Language Analyzer Implementation Summary

## Overview

This document summarizes the implementation of C and C++ language analyzers in the PMAT toolkit, which addresses one of the high-severity technical debt issues identified in Sprint 49's plan. This implementation enables comprehensive code analysis for C and C++ codebases.

## Implementation Details

### Files Created

1. **/home/noah/src/paiml-mcp-agent-toolkit/server/src/services/ast/languages/c.rs**
   - Implements `CAstVisitor` for parsing C files
   - Implements `CComplexityAnalyzer` for complexity analysis
   - Provides `analyze_c_file` function for integration with context.rs

2. **/home/noah/src/paiml-mcp-agent-toolkit/server/src/services/ast/languages/cpp.rs**
   - Implements `CppAstVisitor` for parsing C++ files
   - Implements `CppComplexityAnalyzer` for complexity analysis
   - Provides `analyze_cpp_file` function for integration with context.rs

### Files Modified

1. **/home/noah/src/paiml-mcp-agent-toolkit/server/src/services/context.rs**
   - Uncommented and enabled C and C++ file analysis in the `analyze_file_by_toolchain` function
   - Added support for all C++ header extensions (.hpp, .hxx, .hh)

## Features Implemented

### C Language Analyzer

1. **AST Item Extraction**
   - Functions with visibility detection
   - Structs with field counting
   - Enums with variant counting
   - Typedefs
   - Global variables

2. **Complexity Analysis**
   - Cyclomatic complexity calculation
   - Cognitive complexity calculation
   - Nesting depth tracking

3. **File Context Generation**
   - Proper language identification
   - Full AST representation
   - Complexity metrics

### C++ Language Analyzer

1. **AST Item Extraction**
   - Functions and methods
   - Classes with field and method counting
   - Namespaces with proper scope tracking
   - Templates (classes and functions)
   - Enums (including enum classes)
   - Typedefs and using declarations

2. **C++ Specific Features**
   - Namespace scope tracking
   - Class member visibility (public/private/protected)
   - Method qualifiers (const, static, virtual)
   - Template parameter detection

3. **Complexity Analysis**
   - Enhanced for C++ constructs like lambdas
   - Template complexity contribution
   - Try/catch block tracking

## Testing

Both implementations include:

1. **Unit Tests**
   - Basic function analysis
   - Struct/class analysis
   - Complex control flow analysis
   - Complexity calculation verification

2. **Integration with FileContext**
   - Compatible with the existing AST infrastructure
   - Proper error handling and propagation
   - Consistent with other language analyzers

## Technical Debt Reduction

This implementation addresses one of the high-severity violations identified in Sprint 49's plan:

- **Issue**: Missing language analyzers in context.rs
- **Severity**: HIGH
- **Estimated debt**: 2.0 hours
- **Implementation**: Created full C/C++ language analyzers

## Benefits

1. **Multi-language Repository Support**
   - PMAT can now analyze repositories with C/C++ components
   - Mixed-language projects are now better supported

2. **Full Coverage of Core Languages**
   - C and C++ are major systems programming languages
   - Completes support for all major compiled languages

3. **Enhanced Analysis Capabilities**
   - Complexity metrics for C/C++ code
   - AST items for refactoring and analysis

## Next Steps

1. Validate with real-world C/C++ codebases
2. Further optimize parsing performance
3. Add more language-specific features as needed
4. Consider deeper integration with tree-sitter or clang for more detailed analysis