SyntaxError: Unexpected token export (import)

Description

Ava starts to give SyntaxError: Unexpected token export with babelrc es2015 set to “modules”: false. Does not happen if modules props is not set. AND Specifying custom config via ava/babel in package.json does not help.

Webpack uses same config. Babel compiles files successfully if executed manually as

babel ./src/app/actions/constants/shared.js --presets=node6

Error Message & Stack Trace

src/app/actions/constants/shared.js:1
(function (exports, require, module, __filename, __dirname) { export var NOT_STARTED = 'NOT STARTED';
                                                              ^^^^^^
SyntaxError: Unexpected token export
    at Object.exports.runInThisContext (vm.js:76:16)
    at Module._compile (module.js:542:28)
    at loader (/Users/dlebedynskyi/Documents/Code/code/node_modules/babel-register/lib/node.js:144:5)
at require.extensions.(anonymous function) (/Users/dlebedynskyi/Documents/Code/code/node_modules/babel-register/lib/node.js:154:7)
    at extensions.(anonymous function) (/Users/dlebedynskyi/Documents/Code/code/node_modules/require-precompiled/index.js:16:3)
    at Object.require.extensions.(anonymous function) [as .js] (/Users/dlebedynskyi/Documents/Code/code/node_modules/ava/lib/process-adapter.js:104:4)
    at Module.load (module.js:487:32)
    at tryModuleLoad (module.js:446:12)

Config

package.json:

{
    "ava": {
    "files": [
      "test/**/*.spec.js"
    ],
    "source": [
      "src/**/*.{js,jsx}"
    ],
    "concurrency": 5,
    "require": [
      "babel-register",
      "babel-polyfill",
      "ignore-styles",
      "./test/setup.js"
    ],
    "babel": "inherit"
  }
}

.babelrc

{
  "plugins": [
    "transform-export-extensions",
    "transform-class-properties",
    ["transform-builtin-extend", {
        "globals": ["Error"]
    }],
    ["transform-object-rest-spread", {
      "useBuiltIns": true
    }],
    ["transform-react-jsx", {
      "useBuiltIns": true
    }],
    ["transform-regenerator", {
      "async": false
    }],
    ["transform-runtime", {
      "helpers": false,
      "polyfill": false,
      "regenerator": true
    }],
    "react-hot-loader/babel"
  ],
  "presets": [
    "react",
    ["latest", {
      "es2015" : {
        "modules": false,
        "loose": true
      }
    }]
  ]
}

Command-Line Arguments

npm run ava

What I had tried and it did not work

1. specify custom babel config in ava section

"ava": {
   ...
    "require": [
      "babel-register",
      "babel-polyfill",
      "ignore-styles",
      "./test/setup.js"
    ],
    "babel": {   "presets": [ "react",   "latest"] }
}

1. specify “node6”

"ava": {
    ...,
    "babel": {
      "babelrc": false,
      "presets": [ "node6" ]
    }
  },

1. Try use extend as https://github.com/avajs/ava/blob/master/docs/recipes/babelrc.md#extend-an-alternate-config-file - same result.

Environment

Node.js v6.9.1
darwin 16.1.0
ava 1.7.0

It looks like test files are being transpired correctly but for source files are ignored 😦. This happens only with modules:false. And this is being set so for tree shacking webpack2. To enable common js modules I’ve tried things above an it still looks like .babelrc is used without overrides.

[mandricore]

Where do I set modules: false !?

[novemberborn]

modules: false disables transpiling the module syntax to Node.js’ module system. You’ll need to enable that for AVA to work.