Spoon is a metaprogramming library to analyze and transform Java source code. 🥄 is made with ❤️, 🍻 and ✨. It parses source files to build a well-designed AST with powerful analysis and transformation API.

A code generator for array-based code on CPUs and GPUs

Optional Chaining for TypeScript

Error Prone extensions: extra bug checkers and a large battery of Refaster rules.

Upgrade Elm projects

A collection of transforms for use with JSCodeshift

Application transformation tool

CLAW Compiler for Performance Portability

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Java to C#.Net Translator

BubblesAgent: Open-source AI agent using LLMs (GPT, Gemini, Claude) for automated, large-scale code refactoring and transformation.

Lazily evaluated arrays in Python

A configurable code modifier for typescript and friends. Can transform entire codebases to enforce better coding practices, eliminate tech debt in one fell swoop, and catch bad code before it is committed.

Automatic source transformation to apply HPC frameworks with minimal user interaction

Convert Verilog module to chisel3 BlackBox

Parsing JS code into ASTs and tools to query and transform these trees.

Dependence-Based Code Transformation for Coarse-Grained Parallelism

The set of annotation processors that generate an accessor which returns an optional value for each annotated field during the compilation phase.

🛡️ AI-powered vulnerability scanner that automatically detects, analyzes, and fixes security issues in npm packages with intelligent code transformations. Supports GitHub Actions, CLI, Docker, and VS Code integration with Microsoft Teams notifications.

Python's built-in libraries include powerful tools for retrieving and operating over abstract syntax trees. This article provides an overview of how to use these features to analyze and transform Python code programmatically.