output-ast

ProcDef
  Postfix
    Ident "*"
    Ident "hello"
  Empty
  GenericParams
    IdentDefs
      Ident "T"
      Ident "U"
      Empty
      Empty
  FormalParams
    Empty
    IdentDefs
      Ident "someName"
      Ident "string"
      Empty
    IdentDefs
      Ident "otherStuff"
      Ident "int"
      Empty
  Empty
  Empty
  StmtList
    Command
      Ident "echo"
      Infix
        Ident "&"
        Infix
          Ident "&"
          Infix
            Ident "&"
            StrLit "Hello, "
            Ident "someName"
          Prefix
            Ident "$"
            Ident "otherStuff"
        StrLit "!"