Compile-time variables

[Kayomn]

On Friday, 6 April 2018 at 01:14:37 UTC, ketmar wrote:
> Kayomn wrote:
>
>> [...]
>
> it is already done for you, free of charge.
>
> 	class Node {}
> 	class RootNode : Node {}
> 	class SpriteNode : Node {}
>
> 	void main () {
> 		auto nodeId1 = typeid(Node);
> 		auto nodeId2 = typeid(SpriteNode);
> 		auto comparison = typeid(Node);
>
> 		Node n = new SpriteNode();
>
> 		assert(typeid(Node) is typeid(Node)); // obviously
> 		assert(typeid(SpriteNode) !is typeid(Node)); // sure
> 		assert(typeid(Node) is nodeId1);
> 		assert(typeid(n) is nodeId2);
> 	}

Oh neat, thanks. I've been really scraping my head over this, and 
was worried I wouldn't be able to keep supporting my D version of 
the project.