Objects(from classes) at Compile time? no gc

[Jacob Carlborg via Digitalmars-d-learn]

On 16/05/14 06:59, Taylor Hillegeist wrote:
> The subject says it all really. i have this example:
>
> import core.memory;
>
> class fruit{
>    int value=5;
>    public int getvalue(){
>      return value;
>    }
> }
>
> int main(string[] args) {
>      GC.disable;
>      static fruit myfruit;
>      return myfruit.getvalue();
> }
>
> Most of the smart people will see that i want the program to return 5
> but I did something dumb and didn't put in the "new" statement?
>
> So my question is in longer words "Can I create instances of objects at
> compile time?" and if not "why not, i could build something
> (roughly)equivalent out of structs and functions and have it at compile
> time?"

If you create an immutable instance it's possible to create it at 
compile time:

int main(string[] args) {
      GC.disable;
      immutable fruit myfruit = new immutable(fruit);
      pragma(msg, myfruit.getvalue); // will print 5 at compile time
      return myfruit.getvalue();
}

Although, I don't know if it will allocate it during  runtime as well.

-- 
/Jacob Carlborg