Show HN: Mirror_bridge – C++ Reflection powered Python binding generation (github.com)

A new library, Mirror Bridge, has been introduced, leveraging C++26 reflection (P2996) to automatically generate bindings for C++ classes in Python, JavaScript, and Lua without the need for boilerplate code. This experimental tool allows developers to write their C++ code once and seamlessly use it across multiple programming languages, enhancing productivity and reducing the complexity of cross-language development. Currently, it functions exclusively with Bloomberg's clang-p2996 fork, which adds a necessary layer of reflection support that is not yet part of the C++ standard. The significance of Mirror Bridge lies in its potential to streamline the integration of C++ with other languages, making it particularly appealing for prototyping and small projects. It features automatic discovery of data members and methods, support for variadic parameters, exception handling, and smart pointer conversions, all compiled at zero runtime overhead. This library not only simplifies the process of binding but also significantly improves performance benchmarks compared to existing solutions like pybind11, implying a paradigm shift in how C++ can interact with scripting languages in AI and ML applications. As C++26 becomes standardized, Mirror Bridge may become a critical tool for developers looking to enhance their productivity across multi-language environments.