a81a0d0f84
The filename options used by babylon is called `sourceFilename` and not `filename`. Therefore the option should be adjusted to be called `sourceFilename`.
babel-core
Babel compiler core.
Install
$ npm install babel-core
Usage
import babel from 'babel-core';
const code = `class Example {}`;
const result = babel.transform(code, { /* options */ });
result.code; // Generated code
result.map; // Sourcemap
result.ast; // AST
For more in depth documentation see: http://babeljs.io/docs/usage/api/