Vision

[Kagamin via Digitalmars-d]

On Friday, 23 October 2015 at 12:44:03 UTC, Steven Schveighoffer 
wrote:
> The example looks terrible -- objc_lookUpClass which only gets 
> a class that can alloc an NSString? Can this be done better? An 
> objective-c developer that is not too familiar with D would be 
> very disappointed in this binding.

A little of massage and you get:

struct ClassStorage(C)
{
   alias lookUp this;
   C lookUp() immutable
   {
     return cast(C)objc_lookUpClass(C.stringof);
   }
}

immutable ClassStorage!NSString cNSString;

C alloc(C)()
{
   immutable ClassStorage!C c;
   return c.alloc();
}

void main()
{
   auto str = cNSString.alloc.initWithUTF8String("Hello World!");
   auto str1 = alloc!NSString.initWithUTF8String("Hello World!");
   NSLog(str);
   str.release();
   str1.release();
}