Get current filename in Babel Plugin?

Question

I'm attempting to write a plugin for babel, and am needing the filename of the current file that is being parsed. I know the lines of the code are passed in, but I haven't managed to find a reference to the filename. Any help??

For instance given this code what could I do

export default function({ types: t }) {
  return {
    visitor: {
      Identifier(path) {
       // something here??
      }
    }
  };
}

Farmhouse

Answer 1

You can you this or use the 2nd parameter in a visitor (state)

Identifier(path, state) {
    console.log(state.file.opts.filename);
}

Eiger

Why not state.filename? – Lianeliang

Answer 2

For any future viewers, you can use this.file.opts.filename in a visitor function

Farmhouse

Answer 3

The property state.file.opts.filename will give the full path to the file being transformed. S.t. like: /Users/casianorodriguezleon/campus-virtual/2324/learning/babel-macros/src/tan-li/use-macro.mjs. The property state.file.sourceFileName gives the basename of the input file: use-macro.mjs

Geminian