babel-plugin-show-source

A Babel plugin that transforms functions to include their source code via Function.prototype.toString() for runtime introspection. Current stable version is 0.2.1 (pre-1.0.0, still experimental). The release cadence is low; last update was 2023. It is a niche tool intended for debugging, serialization, or educational demos where preserving function text is needed. Note the pre-release versioning and possible breaking changes in minor versions.