thoughts on immutability in D

[Andrei Alexandrescu]

On 9/24/11 1:12 CDT, Rainer Schuetze wrote:
>
> On 9/22/2011 4:10 PM, Andrei Alexandrescu wrote:
>> On 9/22/11 3:02 AM, Peter Alexander wrote:
>>> On 22/09/11 7:04 AM, Andrei Alexandrescu wrote:
>>>> The initial submission got junked so I resubmitted:
>>>>
>>>> http://www.reddit.com/r/programming/comments/knn5p/thoughts_on_immutability_in_d/
>>>>
>>>>
>>>>
>>>>
>>>> Andrei
>>>
>>> Thanks for the reddit'ing. I launched up google analytics this morning
>>> and noticed a sudden spike. That could only mean one thing :-)
>>>
>>> Out of interest, does anyone have any criticism of my post, esp. if
>>> there's any technical inaccuracies (or just disagreement?)
>>
>> You could have specified that e.g. mutable state can be implemented
>> safely with the help of a global hash table.
>>
>> Andrei
>
> If this is allowed by the compiler, doesn't that break all the
> guarantees transitive immutability tries to make? Aren't we back to
> "faith based programming" this way?

Not at all. Global mutable memory is what it is to everyone.

Andrei