# Polyglot AST Framework Release Notes

## Version 1.0.0 (Release Date: TBD)

## Overview

The Polyglot AST Framework is a major new feature in PMAT that enables cross-language analysis capabilities. This framework allows PMAT to analyze code spanning multiple programming languages, detect relationships between components written in different languages, and provide insights into polyglot architecture patterns.

## Key Features

### Cross-Language Analysis

- **Unified AST Representation**: Language-agnostic representation of code elements across different programming languages
- **Cross-Language Dependency Detection**: Identify relationships (inheritance, implementation, usage) between components in different languages
- **Language Boundary Analysis**: Detect and analyze language boundary patterns in polyglot projects

### JVM Language Support

- **Java Support**: Analyze Java code and its relationships with other languages
- **Kotlin Support**: Analyze Kotlin code and its interoperability with Java
- **Scala Support**: Analyze Scala code and its JVM interactions

### Web Language Support

- **TypeScript Support**: Analyze TypeScript code and its relationships with backend code
- **JavaScript Support**: Analyze JavaScript code and its interactions with other languages

### Integration with PMAT

- **MCP Tools**: New MCP tools for polyglot analysis in AI agent workflows
- **CLI Commands**: Command-line interface for polyglot analysis
- **Visualization**: DOT graph generation for visualizing cross-language dependencies

## Technical Details

### Feature Flags

The polyglot AST framework uses a feature flag system to allow selective inclusion of language-specific components. The following feature flags are available:

- `java-ast`: Java language support
- `kotlin-ast`: Kotlin language support
- `scala-ast`: Scala language support
- `typescript-ast`: TypeScript language support
- `javascript-ast`: JavaScript language support
- `polyglot-ast`: Meta-feature that enables all language features

### Configuration

To enable polyglot analysis in your PMAT installation, add the following to your `pmat.toml` configuration file:

```toml
[polyglot]
# Enable cross-language analysis
enabled = true

# Languages to include in analysis
languages = ["java", "kotlin", "scala", "typescript"]

# Maximum recursion depth for directory scanning
max_depth = 3

# Generate visual dependency graphs
generate_graphs = true
```

## API Changes

### New Types

- `UnifiedNode`: Language-agnostic representation of code elements
- `LanguageMapper`: Interface for mapping language-specific AST to unified representation
- `CrossLanguageDependencies`: Detection and analysis of cross-language relationships

### New MCP Tools

- `PolyglotAnalysisTool`: Analyzes polyglot projects for cross-language relationships
- `LanguageBoundaryTool`: Detects and analyzes language boundaries in a project

### New CLI Commands

```bash
# Analyze a polyglot project
pmat polyglot analyze --path /path/to/project

# Detect language boundaries
pmat polyglot boundaries --path /path/to/project --from java --to kotlin

# Generate dependency graph
pmat polyglot graph --path /path/to/project --output graph.dot
```

## Example Workflows

### Analyzing JVM Interoperability

```bash
# Analyze JVM interoperability in a project
pmat polyglot analyze --path /path/to/jvm-project --languages java,kotlin,scala

# Generate a report focusing on JVM language boundaries
pmat polyglot report --path /path/to/jvm-project --focus jvm-boundaries
```

### Web Frontend and Backend Integration Analysis

```bash
# Analyze frontend-backend integration
pmat polyglot analyze --path /path/to/web-project --languages typescript,java

# Generate a report on API boundaries
pmat polyglot report --path /path/to/web-project --focus api-boundaries
```

### Full Polyglot Analysis with Visualization

```bash
# Comprehensive polyglot analysis
pmat polyglot analyze --path /path/to/project --languages all

# Generate visualization
pmat polyglot graph --path /path/to/project --output graph.dot

# Convert DOT to PNG (requires GraphViz)
dot -Tpng graph.dot -o polyglot-dependencies.png
```

## Integration with Other Features

### Technical Debt Gradient

The polyglot AST framework integrates with the Technical Debt Gradient feature to provide cross-language technical debt insights:

```bash
# Analyze technical debt across language boundaries
pmat tdg --path /path/to/project --cross-language
```

### Mutation Testing

The framework enables cross-language mutation testing for comprehensive test quality evaluation:

```bash
# Run cross-language mutation tests
pmat mutation --path /path/to/project --cross-language
```

## Known Limitations

- **Performance**: Cross-language analysis may be slower than single-language analysis for very large projects
- **Language Support**: Not all languages have the same level of analysis capability
- **Reference Resolution**: Some complex cross-language references may not be detected with high confidence

## Future Enhancements

- **Additional Languages**: Support for more programming languages
- **Deeper Integration**: Enhanced integration with other PMAT features
- **Performance Improvements**: Optimization for large-scale projects
- **Advanced Visualization**: Interactive visualizations for cross-language relationships

## Breaking Changes

- None. This is a new feature that does not modify existing functionality.

## Upgrade Guide

No special upgrade steps are required. The polyglot AST framework is disabled by default and can be enabled via feature flags and configuration.

## Feedback and Contributions

We welcome feedback and contributions to the polyglot AST framework. Please submit issues and pull requests through our GitHub repository.

## License

The polyglot AST framework is included in the PMAT license.

## Acknowledgements

Special thanks to the development team and contributors who made this feature possible.

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*This document is a template for the final release notes. It will be updated with actual details, examples, and documentation before release.*