Use WIDL NAN as Node.js Module

If you're writing Node.js scripts to build your project, use WIDL-NAN as a Node.js module would be more convenient.

const g = require('widl-nan').generator;

Promise.all([
  g.addFile('../idl/common/w3c-geometry.widl'),
  g.addFile('../idl/object-recognition/object-recognition.widl')
  ]).then(function () {
    g.compile();
    g.writeToDir('gen');
  }).catch(e => {
    console.log(e);
  });

There are 3 main APIs you should know: addFile(pathFileName), compile() and writeToDir(dirName), as the names suggest, you can add multiple Web IDL files to the generator by using addFile() (order doesn't matter), and then invoke compile() to compile them, and invoke writeToDir() at last to write all generated files to that directory.