Compile-time optimization

[JS]

oops, that was a mess... I guess I need to learn how to program. 
This one is not much better but at least works. I'll have to 
rewrite the code.


module main;

import std.stdio, std.traits;

template tuple(args...)
{
     alias tuple = args;
}

template tUnrollArgs(args...)
{
	pragma(msg, ">"~args.stringof);
	static if (args.length == 0)
		alias tUnrollArgs = tuple!();
	else
	static if (isArray!(typeof(args[0])))
	{
		pragma(msg, "isarray");
		static if (args[0].length > 1)
		{
			pragma(msg, "unrolling");
			static if (args[0].length > 1)
			{
				pragma(msg, "length > 1");
				alias tUnrollArgs = tuple!(tUnrollArgs!(args[0][0]), 
tUnrollArgs!(args[0][1..$],args[1..$]));
			}
			else
			{
				pragma(msg, "length == 0 || 1");
				alias tUnrollArgs = args[0];
			}
		}
		else
		{
			static if (args[0].length > 1)
			{
				pragma(msg, "1");
				alias tUnrollArgs = tuple!(args[0][0], 
tUnrollArgs!(args[0][1..$], args[1..$]));
			}
			else
			{
				pragma(msg, "2");
				alias tUnrollArgs = tuple!(args[0][0], 
tUnrollArgs!(args[1..$]));
			}
		}
	}
	else
		//static if (args[0].length > 1)
			//alias tUnrollArgs = tuple!(args[0], 
tUnrollArgs!(args[0][1..$]));
		//else
			alias tUnrollArgs = args;
}

void main(string[] argv)
{
	immutable auto z = ["1", "2"];
     writeln(tUnrollArgs!(["a", "b"], z, "c"));
	readln();
}