Working with Meteor's new reify

[dj-foxxy]

Hi. first of all thanks for the great plugin. It's allowed us to take an awful Meteor/CoffeeScript project (written by us years ago) and refactor it into something manageable. However, Meteor recently changed its build pipeline so that a tool called reify runs over the code replacing import statements with calls into the reify runtime before the source hits babel (and this plugin). So when this plugin outputs an import statement, it never gets translated. I know this is not an issue with this project (feel free to close). But I'm wondering if you have any pointers. I made an example repo for the Meteor issue (that got no resolution). I'll cut-n-paste the README below.

babel-plugin-tcomb broken

The babel-plugin-tcomb Babel plugin does not function correctly with Meteor core package ecmascript after version 0.6.1.

Setup

$ cd /path/to/app
$ meteor npm install
$ meteor

Background

We use flow, tcomb, and babel-plugin-tcomb for static and runtime type-checking, respectively. In this example project, the echo function in main.js should only be passed foo1 or foo2, as described by FooType in FooType.js. The second call to echo passes an illegal argument, bar1 and we expect a tcomb generated TypeError.

Details

In this example project, the ecmascript packages is pinned to 0.6.1. Under this version, the following code is generated for the FooType.js module.

module.export({
    FooType: function () {
        return FooType
    }
});

var _t; module.import('tcomb', {
    "default": function (v) { _t = v }
});

var FooType = _t.enums.of(['foo1', 'foo2'], 'FooType');

This code correctly exports tcomb's type checker for FooType and the misuse of the echo function in main.js is correctly detected:

TypeError: [tcomb] Invalid value "bar1" supplied to foo: FooType (expected one of [
  "foo1",
  "foo2"
])

Updating the ecmascript package to version 0.6.2 creates the following code:

import _t from "tcomb";

var FooType = _t.enums.of(["foo1", "foo2"], "FooType");

Which causes a syntax error:

import _t from "tcomb";
^^^^^^

SyntaxError: Unexpected reserved word
    at Object.exports.runInThisContext (vm.js:53:16)

Adding babel-plugin-transform-es2015-modules-commonjs doesn't help:

$ meteor npm install --save-dev babel-plugin-transform-es2015-modules-commonjs

$ cat .babelrc
{
  "plugins": [
    "tcomb",
    "transform-es2015-modules-commonjs"
  ]
}

FooType is not exported:

"use strict";
var _tcomb = require("tcomb");
var _tcomb2 = _interopRequireDefault(_tcomb);
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }
var FooType = _tcomb2.default.enums.of(["foo1", "foo2"], "FooType");

Question

Is there a fix for this issue or are we stuck with ecmascript@=0.6.1 (and therefore release 1.4.2.7)?

Thanks,

Peter.

[dj-foxxy]

Closing because partially resolved in Meteor.