type Message1 = object
  name: string
type Message2 = object

import tables, macros

var registered {.compileTime.}: Table[string, NimNode]
macro register(name: static[string], x: typed) =
  registered[name] = x
  
macro generate(): untyped =
  result = newStmtList()
  for name, value in registered:
    let valueStr = value.repr
    result.add quote do:
      echo `name`, ": ", `valueStr`

register("route1", Message1)
register("otherRoute", Message2)

generate()