On Wed, Feb 10, 2010 at 5:45 AM, radoslav hodnicak <rh at 4096.sk> wrote:

>
> On Wed, 10 Feb 2010, Lukas Renggli wrote:
>
>  There is no version of the NewCompiler that fully works with closure
>> images yet.
>>
>> And yes, the NewCompiler requires the whole kitchen sink and also the
>> bathtub.
>>
>
> In the light of this answer, I remember there's been a plan to support
> immutability of objects at the VM level? Is that on the roadmap for Cog?
>

No, but the code exists in the Newspeak VM, so it would be easy to import
into current Squeak VMs.  It would take a little more work to bring it into
Cog because I'd have to write the native code for the write checks in inst
var assign and the at: primitive, but this is literally only a little work.

Someone who has time might look at the Newspeak VM's immutability code and
play with merging it with VMMaker.

>
> rado
>
>
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