Assoc array typesafe variadic functions

[extrawurst via Digitalmars-d]

On Wednesday, 3 June 2015 at 19:09:52 UTC, Mint wrote:
> I'm a little puzzled by the fact that typesafe variadic 
> functions may be declared to take an associative array, but 
> there seems to be no way of calling the function to take 
> advantage of this.
>
> ie. foo is a valid function when declared as:
>
>     void foo(int[string] bar...)
>     {
>         import std.stdio;
>         bar.writeln;
>     }
>
> But the only way to call it seems to be to pass an assoc array 
> as a parameter,

defining a assoc array parameter would make me expect exactly 
that: that it takes a assoc array as a paramter.

>
>     foo(["a" : 1, "b" : 2]); // Valid
>
>     foo("a", 1, "b", 2); // Not valid
>
>     foo("a" : 1, "b" : 2); // Syntax error
>
> I also can't find any mention of this in the language reference 
> ( http://dlang.org/function.html#variadic ). I assume that the 
> syntax is only valid because it would take an additional 
> specialized language rule to do otherwise, however, it might be 
> neat to actually have this as a feature.
>
>     foo("a" : 1, "b" : 2); // This would be really cool.

whats the benefit of implementing this special case ? you save 
exactly 2 keystrokes ?