kentcdodds/babel-plugin-macros

babel-plugin-macros is a Babel plugin that allows developers to create simple compile-time libraries without requiring users to add additional Babel plugins to their build system. It's designed for library authors who want to provide compile-time optimizations or transformations, such as CSS-in-JS libraries that generate class names at compile time instead of runtime, or GraphQL fragment compilation. The plugin is particularly useful for developers using tools like Create React App, which already include babel-plugin-macros out of the box.