mixin + CTFE, to big a hammer??
John Reimer
terminal.node at gmail.com
Thu Mar 1 12:48:08 PST 2007
On Thu, 01 Mar 2007 13:29:30 -0700, Hasan Aljudy wrote:
> kris wrote:
>> BCS wrote:
>>> I have been thinking about the new functionality added by the code
>>> mixin and CTFE features and I'm thinking that they may be "to big a
>>> hammer" for may jobs.
>>>
>>> Take my parser generator as an example. I don't think there would be
>>> anything to gain by using mixin as the primary method of code
>>> generation. Firstly, code generated this way will inherently be harder
>>> to read and debug. Also it doesn't do anything that tuple iteration
>>> doesn't do just as well.
>>>
>>> I will admit that there may be some things to be gained there by using
>>> mixin code (the terminal and action call backs could benefit a lot
>>> from this) but these are only minor changes. Also mixin code would be
>>> invaluable for some more complicated cases.
>>>
>>> Why is this important? I think that many valuable types of code
>>> generation would benefit more by improving the static control
>>> structures (foreach/if/etc.) than they would from more mixin like
>>> features.
>>>
>>> One feature I would like is a true static foreach, one that can
>>> iterate over any built in type arrays or a tuple but does unrolling
>>> and per-loop semantic analysis like with tuples. This, in conjunction
>>> with CTFE, would make for huge improvements in what can readily be
>>> accomplished by moving much of the processing of the code generator
>>> input into function and out of templates.
>>>
>>> Basically, I'm saying that while mixin+CTFE is good from many things,
>>> it shouldn't be pushed at the expense of the more mundane techniques.
>>>
>>> Just some thoughts, what do you all think?
>>
>>
>> D mixin, in it's current guise, is about equivalent to crack-cocaine.
>> Easily the worst thing that happened to the language, IMO.
>>
>> Just say no
>
> Just give it time, wait for it to mature from experience.
??
It's been around for a bit already. It doesn't seem to be getting better?
-JJR
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