Transpiled client code fails to eval on the server

[artemave]

This innocent looking code

    return server.run(commissions, function(commissions) {
      const commissionWriter = serverRequire('./test/support/commissionWriter')(this.tropicsDb);
      return commissionWriter.addNew(...commissions);
    })

Fails with a seemingly unrelated error message:

      ReferenceError: _toConsumableArray is not defined
          at Object.eval (eval at run (/Users/artem/projects/booking-services/node_modules/karma-server-side/index.js:61:12), <anonymous>:5:62)

The problem is that by the time this code is sent to the server side for evaluation it has been transpiled into this:

      var commissionWriter = serverRequire('./test/support/commissionWriter')(this.tropicsDb);
      return commissionWriter.addNew.apply(commissionWriter, _toConsumableArray(commissions));

Which then fails to eval since there is no such thing as _toConsumableArray defined on the server (it supports ... natively)

[artemave]

Is there a magic babel comment to exclude a code block from being transpiled?

[refractalize]

oh... crap... this was bound to happen at some point

[refractalize]

we need a babel plugin to compile this stuff. we could transform require => serverRequire while we're at it. sledgehammer?

[artemave]

@refractalize won't require => serverRequire transformation lock us into always using babel? Even when the dreams come true and browsers implement es6 100%?