Oh, I wish I knew that before!
I lost a lot of time thinking some magic stuff was messing with my arrays :P


On Fri, Mar 12, 2010 at 6:45 PM, Levente Uzonyi <leves at elte.hu> wrote:

> On Fri, 12 Mar 2010, Ricardo Moran wrote:
>
>  Hi, guys
>>
>> I'm sorry if what I'm about to ask is a newbie question but I'm puzzled
>> about a behavior I found today regarding Arrays.
>>
>> a1 := #(0 0 0 0).
>> a2 := #(0 0 0 0).
>> a1 == a2
>>
>> If I select the whole expression above and execute it on a workspace it
>> returns true (meaning that a1 and a2 are the same object). If I execute
>> each
>> line separately it returns false.
>> I don't understand why this happens. Is this expected? or is it a bug?
>>
>> This only happens when I use the literal syntax, using Array >>
>> #new:withAll: works fine regardless of the way I execute it. I'm inclined
>> to
>> think this is a bug, but I wanted to know what you think about it.
>>
>
> It's an optimization by the compiler. If the same literal object appears
> twice or more, only one object will be created.
>
>
> Levente
>
>
>> Cheers
>> Richo
>>
>>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.squeakfoundation.org/pipermail/squeak-dev/attachments/20100312/43d6c4ed/attachment.htm