VerifyError: Bad type on operand stack

A. Sundararajan sundararajan.athijegannathan at
Sat Sep 14 01:04:36 PDT 2013


Thanks for the simplified test case. Even simpler test is as follows:

function func(obj) {
     var arguments = obj;
     for (var i in arguments) {
     return obj;

I suspect the issue has to do with handling of 'arguments' shadowing by 
local var of "magic" arguments. Renaming arguments fixes it. And looks 
like the loop over arguments is needed as well. I'll file a bug.

Thanks again,

On Saturday 14 September 2013 09:12 AM, Tal Liron wrote:
> Hm, I think the mailing list doesn't support attachments. Here is a 
> link to the file that causes the VerifyError:
> On 09/13/2013 03:38 PM, Tal Liron wrote:
>> Hi Attila, I am attaching the file. I didn't attach it originally, 
>> because I thought it would be impossible for you to test: it is 
>> normally run from within an embedded environment based on 
>> Scripturian/Sincerity. However, I am happy say that i tried anyway 
>> and the exact same exception is reproducible even with jjs. Note that 
>> "jjs --compile-only" completes without error.
>> -Tal

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