Babel plugin that checks access to global window variable

check-window.js

const { resolve: resolvePath } = require('path');

module.exports = (babel) => ({
  visitor: {
    Identifier(path, state) {
      if (path.node.name === 'window') {
        if (!path.scope.hasBinding('window')) {
          const fileName = resolvePath(state.file.opts.filenameRelative);
          const { start } = path.node.loc;
          console.warn(`Global window is touched at ${fileName}:${start.line}:${start.column}`);
        }
      }
    },
  }
});