Any plans to support STL value types?

[Jonathan M Davis via Digitalmars-d]

On Friday, 15 May 2015 at 18:42:31 UTC, Kagamin wrote:
> Many STL types inherit from base classes, yet they are used as 
> value types: std::string, std::vector etc. Are there plans to 
> support C++ types with inheritance as proper value types in D 
> frontend?

Given that the inheritance they have is actually undesirable when 
they are treated as value types, I doubt that there's much need. 
If you're using inheritance in C++, you're putting your class on 
the heap and accessing it via pointers, in which case, accessing 
them in D as classes makes sense. And if you're using these STL 
types as value types on the stack, then they can be treated as 
value types. Doing otherwise just risks object slicing, which is 
not desirable in the least.

So, while I don't know how we're going to be handling STL types 
(I don't even know what the current state of C++ state support 
is, since it keeps improving), I really don't see why there's 
value in supported inheritance with value types. It would just be 
begging for bugs - which is why native D types don't support it.

- Jonathan M Davis