Spread Operator bug?

Bug. I’m requiring a file with the following statement (using require because I’ll be using both on node and browser):

const user = require('skeemas/complexUser');

The working complexUser:

const user = require('./user');
const individual = require('./individual');
const company = require('./company');
const credential = require('./credential');

const complexUser = {
    type: {
        type: 'text',
        values: ['individual', 'company'],
        predefined: 'individual',
    }
}

Object.assign(complexUser, user, individual, company, credential);

module.exports = complexUser;

The NOT working complexUser:

const user = require('./user');
const individual = require('./individual');
const company = require('./company');
const credential = require('./credential');

module.exports = {
    type: {
        type: 'text',
        values: ['individual', 'company'],
        predefined: 'individual',
    },
    ...user,
    ...individual,
    ...company,
    ...credential,
};

Error thrown by Webpack:

 ERROR in ./node_modules/skeemas/complexUser.js
    Module parse failed: /Users/damz/Desktop/repmemo/node_modules/skeemas/complexUser.js Unexpected token (12:4)
    You may need an appropriate loader to handle this file type.
    |         predefined: 'individual',
    |     },
    |     ...user,
    |     ...individual,
    |     ...company,
     @ ./models/user.js 1:13-43
     @ ./models/userPresenter.js
     @ ./apps/user/components/profileForm.js
     @ ./apps/user/router.js
     @ ./apps/user/index.js

Both babel and node do not complain if running the file directly (https://goo.gl/E3ZSEq).

[TrySound]

As I said spread operator is stage-3. So you don’t have it in your config. Please, help yourself and use such plugins directly. stage presets are changed too often.

[alangpierce]

The webpack parser will need to be updated to handle the syntax as well, since it has special-case code for each node type. I recently wrote a (hacky) webpack plugin that patches the parser to handle the syntax, so the updated “walk” functions in the code are approximately what will need to be changed. But it should be an easy fix, I think.

https://github.com/alangpierce/sucrase/tree/master/integrations/webpack-object-rest-spread-plugin https://github.com/alangpierce/sucrase/blob/master/integrations/webpack-object-rest-spread-plugin/src/index.ts#L111