search of a workaround

[Namespace]

> Well, I did mention "Also, I didn't code the FunctionAttribute 
> part, but that's just because it's late and I want to sleep". I 
> even left a big "todo" in there :)

I've overlooked that. :)

Here is the complete code. If you have to improve something, say 
it please.
One last question: why 'ss' as function name? :o

[code]
template rvalue(alias fun) {
     private string ss() {
		enum Func = __traits(identifier, fun);
         enum Ret  = ReturnType!(fun).stringof;
		
         alias Args = ParameterTypeTuple!(fun);
         alias ParameterStorageClassTuple!(fun) pstc;
         enum names = [ParameterIdentifierTuple!(fun)];

         string s;
         s ~= Ret ~ " " ~ Func ~ "(";
         foreach(i, Type; Args[0 .. $]) {
             if (pstc[i] & ParameterStorageClass.scope_) s ~= 
"scope ";
             if (pstc[i] & ParameterStorageClass.out_) s ~= "out ";
             if (pstc[i] & ParameterStorageClass.lazy_) s ~= "lazy 
";
			
             s ~= Args[i].stringof ~ " ";
             s ~= names[i];
			
             if (i + 1 != Args.length) s ~= ", ";
         }
         s ~= ")";
		
		auto funcAttr = functionAttributes!(fun);
		if (funcAttr & FunctionAttribute.pure_) s ~= " pure";
		if (funcAttr & FunctionAttribute.nothrow_) s ~= " nothrow";
		if (funcAttr & FunctionAttribute.ref_) s ~= " ref";
		if (!isMutable!(typeof(fun))) s ~= " const"; // no idea why 
FunctionAttribute has no const...

         s ~= " {\n\treturn " ~ Func ~ "(";
         if (Args.length) {
             s ~= names[0];
             foreach(i, Type; Args[1 .. $]) {
                 s ~= ", " ~ names[i + 1];
             }
         }
         s ~= ");\n}\n";
         return s;
     }
	
     enum rvalue = ss();
}
[/code]