507850 - Destructing object assignment does not support var {Identifier} = ...; syntax sugar

Status: RESOLVED DUPLICATE of bug 454505

(Rhino Graveyard :: Core, defect)

Description

[Daniel Friesen]

User-Agent:       Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.0.12) Gecko/2009070811 Ubuntu/9.04 (jaunty) Firefox/3.0.12 FirePHP/0.3
Build Identifier: CVS

Rhino's JS 1.7 destructing assignment misses out on the syntax sugar:

Rhino supports the normal
var {Foo:Foo} = {Foo:true};

However it doesn't support (SpiderMonkey does):
var {Foo} = {Foo:true};
Which is sugar for the form above.

Reproducible: Always

Steps to Reproduce:
1. Open up a shell with -version 170
2. Type in `var {Foo} = {Foo:true};
Actual Results:  
You get a syntax error.

Expected Results:  
The variable `Foo` should be assigned the value of `true`.

Comment 1

[Hannes Wallnoefer]

This feature (dubbed object destructuring shorthand) was introduced in JavaScript 1.8. Rhino (CVS HEAD) does have partial support for JS 1.8 and in fact supports this feature, but you have to explicitly start it with -version 180. 

Closing as duplicate of bug #454505.