Using Object shorthand with a prop named "async" results in a parse error

[muffinresearch]

Here's a reduced test case that generates the error:

/* global console */

const async = false;
const bar = 1;
const foo = { async, bar };

console.log(foo);

Error message is: error Parsing error: Unexpected token ,

Eslint version is: v4.0.0-rc.0
espree: 3.4.3

Using ecmaversion 8.

Changing: const foo = { async, bar }; to const foo = { async: async, bar }; prevents the error.

Relates to #295

[mysticatea]

Thank you for the report.

I confirmed it.
Acorn, the upstream parser of espree, also has the problem.
Additionally, espree overrides the problem method, so we have to fix espree as well.

[ilyavolodin]

Does acorn even support object spread out of the box? It's still an experimental feature.

[not-an-aardvark]

It seems like the issue is with object shorthand, not object spreading.