Fail to import deconstructed object variable with Literals declaration

[edoardocavazza]

The plugin fails bundling a module which exports a variable from deconstruction with literal keys.

[!] (commonjs plugin) TypeError: extractors[prop.key.type] is not a function

Example
module.js

const obj = {
    index: 0,
    1: 1,
    2: 2,
    3: 3,
};

let {
    index: a,
    1: b,
    2: c,
    3: d
} = obj;

module.exports = b;

index.js

import b from './module.js';

It seems a rollup-pluginutils failure (here the related issue and PR). Also, the extractNames helper in rollup-plugin-commonjs could have the same issue.

[ispyinternet]

Looks like I'm hitting this when trying to rollup sequelize, the code in particular:

 static _defaultsOptions(...args) {
         return this._baseMerge(...args, (...cbArgs) => {
          [cbArgs[0], cbArgs[1]] = [cbArgs[1], cbArgs[0]];
          return this._mergeFunction(...cbArgs);
        });
  }

https://github.com/sequelize/sequelize/blob/4ec86a4bd43aa65e45546e2d4177ffcbeb2b4bac/lib/model.js#L817

[lukastaegert]

This particular issue should be fixed in the latest release via #358

[ispyinternet]

I don' think it is because the call to

MemberExpression(names, node) {
		extractors[node.property.type](names, node.property);
	}

is made where node.property.type = 'Literal' and this method doesn't exist on the extractors object.