Is D suitable for my latest project?

[BBasile via Digitalmars-d-learn]

On Tuesday, 8 September 2015 at 19:30:16 UTC, chris stevens wrote:
> On Sunday, 6 September 2015 at 14:45:45 UTC, BBasile wrote:
>> You have Object.factory for this. You can also use a custom 
>> factory based on string comparison. (with some: static 
>> if(condition) return new This; else static if(otherCondition) 
>> return new That; etc).
>
> I just had a look at Object.factory and this isn't actually 
> what I wanted. I was looking for something that would allow me 
> to create new (previously undefined) classes in D at runtime 
> that I could then use with Object.factory to create instances 
> of.
>
> I think I can do this with Variants and dynamic, is this 
> possible? Or is there another way?

No, it's not possible with variants. What you want to do is 
actually complex and won't be solved here.

To create a new class instance, the runtime needs the TypeInfo 
class for the class type. Why ? because for example if in a class 
declaration you declare an int initially equal to 1, the TypeInfo 
class provide the memory layout that matches to this initital 
value.

For example this is how class instances are creates in D:

https://github.com/D-Programming-Language/druntime/blob/master/src/rt/lifetime.d#L71

---
extern (C) Object _d_newclass(const ClassInfo ci)
---

without the 'ClassInfo' parameter, you can't get the initial 
state of a class.
This is what the runtime needs to create a class instance.