TML.lua

local function formArguments( class, target )
    local reg = class:getRegistry()
    local constructor, alias, args = reg.constructor, reg.alias, target.arguments
    local returnArguments, trailingTable = {n=0;}, {}

    if not constructor then return nil end
    local argumentTypes = constructor.argumentTypes

    local ordered, set, target = constructor.orderedArguments, {}
    for i = 1, #ordered do
        target = ordered[ i ]
        returnArguments[ i ] = XML.convertArgType( args[ target ], argumentTypes[ alias[ target ] or target ] )
        set[ ordered[ i ] ] = true
    end
		returnArguments.n = #ordered

    for argName, argValue in pairs( args ) do
        if not set[ argName ] then
            trailingTable[ argName ] = XML.convertArgType( argValue, argumentTypes[ alias[ argName ] or argName ] )
        end
    end

    if next( trailingTable ) then
        returnArguments[ #ordered + 1 ] = trailingTable
				returnArguments.n = returnArguments.n + 1
    end

    return unpack( returnArguments, 1, returnArguments.n )
end