rust-cmacros

Rust library to assist with parsing and translating #define macro definitions from C header files to corresponding Rust code for use with bindings to external libraries.

Intro

To use libraries with a C interface from Rust, rust-bindgen can be used to generate Rust bindings automatically. It does not translate constants or functions defined as macros in C headers to Rust code however.

rust-cmacros is a simple and fairly dumb library which helps to fill this gap.

It has two basic functions:

• extract_macros() parses the source of a C header file and extracts C macro definitions
• generate_rust_src() takes as input a set of extracted macros and a translator function and generates Rust code.