Function to delegate conversion

[BCS]

Kirk McDonald wrote:
> BCS wrote:
> 
>> Kirk McDonald wrote:
>>
>>>
>>> The following dirty, dirty hack /appears/ to work, at least in this 
>>> trivial case:
>>>
>>> import std.stdio;
>>>
>>> struct DG {
>>>     Object instance;
> 
> I think you mean:
> 
> -     void function() fn;
> +     void* fn;
> 
 >>> }

Actually I did mean what I said, but what I meant (and said) was wrong.


[...]
> 
> 
> But yes, that is a good idea. Templatizing real_dg, however, is going to 
> be a royal pain in the ass, but possible. With Daniel Keep's ftype 
> module, we can get something like:
> 
[...]
> Also not pretty, but it should work, insofar as this whole trick works.
> 
> -Kirk McDonald

how about

<code>
int function(int, float, char[], Object) fnp = getFNP();

int delegate(int, float, char[], Object) dg;
DG* dgp = cast(DG*)cast(void*)&dg;

dgp.fn = cast(void*)fnp;
</code>

It's about as type safe as ASM (a.k.a. not at all) but it should work 
cleanly (sorta).