Hello,

I my FewDee game prototyping library (https://bitbucket.org/lmb/fewdee) I ignored most of the usual reccomendations like "be careful with the GC, it's slow" and "associative arrays are buggy in D, so avoid them". I just used whatever I found convenient to have my stuff running with minimal effort.

So, I did something that may be an abuse of D's associative arrays:

alias
  Tuple!(const(GameState), ALLEGRO_EVENT_TYPE)
  stateTypePair;

// GameState is a class, ALLEGRO_EVENT_TYPE is
// some integral data type

EventHandler[EventHandlerID][stateTypePair]
   _eventHandlers;

// EventHandler is a delegate. EventHandlerID is
// an integral type.

This used to work (surprisingly? :-) ) until very recently (when I upgraded
to DMD 2.064, it seems).

Now, I am getting this

   object.Error: TypeInfo.compare is not implemented

when I try to use my '_eventHandlers' AA.

So, any suggestions?

Thanks a lot!

LMB

On 2013-11-30 13:39:15 +0000, Leandro Motta Barros said:

> Hello,
> 
> I my FewDee game prototyping library (https://bitbucket.org/lmb/fewdee) I ignored most of the usual reccomendations like "be careful with the GC, it's slow" and "associative arrays are buggy in D, so avoid them". I just used whatever I found convenient to have my stuff running with minimal effort.
> 
> So, I did something that may be an abuse of D's associative arrays:
> 
> alias
>   Tuple!(const(GameState), ALLEGRO_EVENT_TYPE)
>   stateTypePair;
> 
> // GameState is a class, ALLEGRO_EVENT_TYPE is
> // some integral data type
> 
> EventHandler[EventHandlerID][stateTypePair]
>    _eventHandlers;
> 
> // EventHandler is a delegate. EventHandlerID is
> // an integral type.
> 
> This used to work (surprisingly? :-) ) until very recently (when I upgraded to DMD 2.064, it seems).
> 
> Now, I am getting this
> 
>    object.Error: TypeInfo.compare is not implemented
> 
> when I try to use my '_eventHandlers' AA.
> 
> So, any suggestions?
> 
> Thanks a lot!
> 
> LMB

DMD version?  Can you post a reduced example which produces the error.  I can't tell where a typeinfo would be getting used from that example.

-Shammah

I am terribly sorry, this was a completely lazy question.

So far, I couldn't reproduce the problem in a small example. I'll look deeper into this before posting again about it.

LMB




On Sat, Nov 30, 2013 at 12:07 PM, Shammah Chancellor <anonymous@coward.com>wrote:

> On 2013-11-30 13:39:15 +0000, Leandro Motta Barros said:
>
>  Hello,
>>
>> I my FewDee game prototyping library (https://bitbucket.org/lmb/fewdee) I ignored most of the usual reccomendations like "be careful with the GC, it's slow" and "associative arrays are buggy in D, so avoid them". I just used whatever I found convenient to have my stuff running with minimal effort.
>>
>> So, I did something that may be an abuse of D's associative arrays:
>>
>> alias
>>   Tuple!(const(GameState), ALLEGRO_EVENT_TYPE)
>>   stateTypePair;
>>
>> // GameState is a class, ALLEGRO_EVENT_TYPE is
>> // some integral data type
>>
>> EventHandler[EventHandlerID][stateTypePair]
>>    _eventHandlers;
>>
>> // EventHandler is a delegate. EventHandlerID is
>> // an integral type.
>>
>> This used to work (surprisingly? :-) ) until very recently (when I
>> upgraded to DMD 2.064, it seems).
>>
>> Now, I am getting this
>>
>>    object.Error: TypeInfo.compare is not implemented
>>
>> when I try to use my '_eventHandlers' AA.
>>
>> So, any suggestions?
>>
>> Thanks a lot!
>>
>> LMB
>>
>
> DMD version?  Can you post a reduced example which produces the error.  I can't tell where a typeinfo would be getting used from that example.
>
> -Shammah
>
>