export const {variable} = otherVariable

[FlorianWendelborn]

In node 6.9.1 this

// region import

import config from '../config/server.json'

// endregion

// region export

export const {cache} = config
export default config

// endregion

doesn't work when transpiled by babel-preset-env.

Transpiled

'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});

var _server = require('../config/server.json');

var _server2 = _interopRequireDefault(_server);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

// endregion

// region export

const { cache } = _server2.default; // region import

exports.default = _server2.default;

// endregion

export const cache = config.cache

'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.cache = undefined;

var _server = require('../config/server.json');

var _server2 = _interopRequireDefault(_server);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

// endregion

// region export

const cache = exports.cache = _server2.default.cache; // region import

exports.default = _server2.default;

// endregion

BabelRC

{
	"presets": [[
		"env", {
			"targets": {
				"node": "current"
			}
		}],
		"stage-3"
	]
}

[hzoo]

The minimal repro is just the export const

In

export const {cache} = config

Out

const { cache } = config;

Expected

const { cache } = config;
exports.cache = cache;

The export is not preserved when you only transform with es2015-modules-cjs transform

Shouldn't be a preset-env issue, it's a bug with http://babeljs.io/docs/plugins/transform-es2015-modules-commonjs

[yavorsky]

Looks like this transform-es2015-modules-commonjs bug appears after we exclude transform-es2015-destructuring. Going to figure out and fix.

[hzoo]

Fixed by babel/babel#5469