tuplify - create tuple with named fields given a list of variables

gistfile1.d

import std.typecons : Tuple;
import std.typetuple : TypeTuple;

template NameTypePairs(alias front, vars...)
{
	private enum name = __traits(identifier, front);
	private alias pair = TypeTuple!(typeof(front), name);
	
	static if(vars.length == 0)
		alias NameTypePairs = pair;
	else
		alias NameTypePairs = TypeTuple!(pair, NameTypePairs!vars);
}

auto tuplify(vars...)()
{
	return Tuple!(NameTypePairs!vars)(vars);
}

auto func()
{
	int x = 42, y = 13;
	string z = "hi";
	return tuplify!(x, y, z);
}

void main()
{
	import std.stdio;

	auto vars = func();
	writefln("x: %s y: %s z: %s", vars.x, vars.y, vars.z);
}