Re: [Hgengine-devs] No RTTI in Constructors or Destructors

[Charles L. <ch...@cn...>]

The only way we can get type information in the destructor is to keep 
that char * around, since the virtual char * GetType() doesn't work 
right in the destructor or constructor.  If we had a DeleteSelf 
function, there would be no need to have that extra char *. 

Additionally, I feel it would be useful in many cases to be able to have 
something say "Remove me at your earliest convenience." After all, in 
the middle of an update cycle, if you remove yourself, you could have 
all sorts of problems because of references to you from things like the 
alpha pass.

Charles


Josh wrote:
> I don't like this. We did this deletion thing in HG1 and it was a disaster.
>
> There is an Init somewhere, either in MercuryNode or MercuryAsset.
> It is currently unused with the intention of reusing asset/nodes.
>
> I do not want a delete self.  Having that in HG1 caused all kinds of 
> circular deletions, it was very messy.
>
> Also, why are you storing char * of the type? We are using RTTI so we 
> don't have to do this, and it increases the size a fairly large amount.
>
>
>
>
> Charles Lohr wrote:
>   
>> It turns out that C++ does not permit virtual function calls in 
>> Constructors or Destructors. 
>>
>> I've added code to make a virtual call intentionally after the creation 
>> of objects that so I can set a new variable "const char * Type" that way 
>> I can get the type in the destructor.
>>
>> I am curious if we were planning on adding Init() and DeleteSelf() or 
>> something along those lines?
>>
>> Charles
>>
>>
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