Better way to convert untyped into NimNode?

[shirleyquirk]

I'm trying to write a helper macro that takes in an untyped argument and 
converts it directly into the appropriate NimNode. what I've ended up doing is 
    
    
    var nimNodes{.compiletime.} = seq[NimNode]
    var nimNodeIndex{.compiletime.} = 0
    macro toNimNode(x: untyped):int =
      nimNodes.add(x)
      result = newLit(nimNodeIndex)
      inc nimNodeIndex
    
    Run

and then using the returned index as a fake pointer. This is the kludgiest of 
kludges; is there a cleaner way that I'm not seeing?

Motivating example: building a compiletime Table[string,NimNode] or 
Table[NimTypeKind,NimNode] for another macro to use.