pony hacky anywhere debug

depony

class Dbg
  new create
    ( a1: Stringable
    , a2:(Stringable | None) = None
    , a3:(Stringable | None) = None
    , a4:(Stringable | None) = None
    ) =>
      let cs1 = a1.string().cstring()
      let cs2 = match a2 | var z: None box => "".cstring() else a2.string().cstring() end
      let cs3 = match a3 | var z: None box => "".cstring() else a3.string().cstring() end
      let cs4 = match a4 | var z: None box => "".cstring() else a4.string().cstring() end

      @printf[I32]("debug: %s %s %s %s\n".cstring(),cs1,cs2,cs3,cs4)

actor Main
  new create(env: Env) =>

  Dbg("hello world")
  Dbg(U64(1000050000), "anything stringable", I32(10), "up to 4 arguments")