AA initialization

[via Digitalmars-d-learn]

On Wednesday, 6 August 2014 at 13:15:27 UTC, Kozzi11 wrote:
> AFAIK there is no easy way to do it. Maybe it would be fine to 
> add some function to phobos. Something like this:
>
>
> auto initAA(VT,KT)() {
>
> 	static struct Entry
> 	{
> 		Entry *next;
> 		size_t hash;
> 	}
> 	
> 	static struct Impl
> 	{
> 		Entry*[] buckets;
> 		size_t nodes;
> 		TypeInfo _keyti;
> 		Entry*[4] binit;
> 		
> 		@property const(TypeInfo) keyti() const @safe pure nothrow 
> @nogc
> 		{ return _keyti; }
> 	}
>
> 	static struct AA
> 	{
> 		Impl* impl;
> 	}
>
> 	VT[KT] aaa;
> 	AA* aa = cast(AA*)&aaa;
> 	if (aa.impl is null)
> 	{   aa.impl = new Impl();
> 		aa.impl.buckets = aa.impl.binit[];
> 	}
> 	aa.impl._keyti = cast() typeid(aaa);
> 	return aaa;
> }
>
>
> Or it would be fine if I could write something like this: auto 
> aa = new VT[KT]();

`string[string] aa = [];` would be fine, too, but it currently 
doesn't compile.