Added support for c/c++

[HACKE-RC]

This pull request adds support for C and C++ language queries to the tree-sitter analyzer, enabling the extraction of language-specific constructs such as functions, classes, structs, variables, and preprocessor directives. It introduces two new query modules for C and C++, each with comprehensive query definitions and descriptions, and registers them in the project configuration for plugin-based loading.

Language support additions:

• Added plugin entries for C (c_plugin:CPlugin) and C++ (cpp_plugin:CppPlugin) to the pyproject.toml configuration, enabling dynamic loading of language-specific query modules.

C language query module (tree_sitter_analyzer/queries/c.py):

• Implemented a full set of tree-sitter queries for C constructs, including functions, structs, unions, enums, variables, preprocessor directives, and control flow statements.
• Provided descriptions for each query and utility functions for query retrieval, listing, and alias mapping to support dynamic and cross-language usage.

C++ language query module (tree_sitter_analyzer/queries/cpp.py):

• Implemented a comprehensive set of tree-sitter queries for C++ constructs, covering classes, methods, templates, namespaces, smart pointers, exception handling, and more.
• Included query descriptions and utility functions for dynamic access, listing, and aliasing, similar to the C module.

PR is written entirely by Copilot (it works and seems precise to me), still requesting a review!

[aimasteracc]

Hi @HACKE-RC! 👋

Thank you so much for this contribution! 🎉 Adding C/C++ support is a valuable addition to tree-sitter-analyzer, and we really appreciate you taking the time to work on this.

Personal note: I'm so happy to have contributors like you! In fact, I just finished restructuring our documentation (v1.9.17 release) specifically to make it easier for contributors to understand our workflow and requirements. It's exciting to collaborate with you on this project! 🙌

I've reviewed the changes, and the implementation looks promising! However, before we can merge this, there are a few things we need to address to align with our contribution guidelines.

🔄 Branch Target

Our project follows GitFlow. Currently, this PR targets main, but it should target develop instead.

❌ Current:  rcx86:main → aimasteracc:main
✅ Required: rcx86:main → aimasteracc:develop

Could you please:

1. Rebase your branch on the latest origin/develop
2. Change the PR base branch to develop

📋 Missing Items from New Language Checklist

We have a comprehensive New Language Support Checklist that all new language implementations must follow. Based on my review, the following items appear to be missing:

✅ Completed

• Query definitions (queries/c.py, queries/cpp.py)
• Plugin entry points in pyproject.toml

❌ Required (Missing)

Item	Status	Details
Language Plugin	❓	Need languages/c_plugin.py and languages/cpp_plugin.py with full LanguagePlugin implementation
Element Extractor	❓	Need CElementExtractor and CppElementExtractor classes
Formatter	❌	Need formatters/c_formatter.py and formatters/cpp_formatter.py
Formatter Registration	❌	Register in formatter_registry.py
Sample Files	❌	Need examples/sample.c and examples/sample.cpp
Unit Tests	❌	Need tests/test_c/ and tests/test_cpp/ directories
⭐ Golden Master Tests	❌	Critical! Need tests/golden_masters/full/c_sample_full.md, etc.
Property-Based Tests	❌	Recommended: tests/test_c/test_c_properties.py
README Updates	❌	Update language support tables in README.md, README_ja.md, README_zh.md
CHANGELOG Update	❌	Add entry to CHANGELOG.md
Dependencies	❓	Verify tree-sitter-c and tree-sitter-cpp are in pyproject.toml

⚠️ Why Golden Master Tests Are Critical

Golden master tests prevent regressions from future changes. Without them, we cannot detect when output format changes unintentionally. This is a required item.

# Add to tests/test_golden_master_regression.py
("examples/sample.c", "c_sample", "full"),
("examples/sample.cpp", "cpp_sample", "full"),

📚 Reference Implementations

For guidance, please refer to these existing implementations:

• Go: languages/go_plugin.py, formatters/go_formatter.py (recently added)
• Rust: languages/rust_plugin.py, formatters/rust_formatter.py
• YAML: languages/yaml_plugin.py, formatters/yaml_formatter.py

🧪 Test Commands

Before submitting, please ensure all tests pass:

# Run your new tests
uv run pytest tests/test_c/ tests/test_cpp/ -v

# Run golden master tests
uv run pytest tests/test_golden_master_regression.py -v -k "c_sample or cpp_sample"

# Run all tests
uv run pytest tests/ -v

# Quality checks
uv run pre-commit run --all-files

📖 Documentation

Please read our contributing guide for the complete workflow:

• CONTRIBUTING.md
• New Language Support Checklist

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Thank you again for your contribution! We're excited to have C/C++ support, and I'm happy to help if you have any questions. Please feel free to ask! 😊

Looking forward to your updates and working together! 🚀