(CommandList
  children: [
    (C {(typeset)} {(-i)} {(_Dbg_stack_size)})
    (C {(typeset)} {(-i)} {(_Dbg_stack_pos)})
    (C {(typeset)} {(Lit_VarLike "_Dbg_frame_last_filename=") (SQ )})
    (C {(typeset)} {(-i)} {(Lit_VarLike "_Dbg_frame_last_lineno=") (0)})
    (FuncDef
      name: _Dbg_frame_adjust
      body: 
        (BraceGroup
          children: [
            (AndOr
              children: [
                (DParen
                  child: 
                    (ArithBinary
                      op_id: Arith_NEqual
                      left: (ArithWord w:{($ VSub_Pound "$#")})
                      right: (ArithWord w:{(Lit_Digits 2)})
                    )
                )
                (ControlFlow token:<ControlFlow_Return return> arg_word:{(255)})
              ]
              op_id: Op_DAmp
            )
            (C {(typeset)} {(-i)} {(Lit_VarLike "count=") ($ VSub_Number "$1")})
            (C {(typeset)} {(-i)} {(Lit_VarLike "signum=") ($ VSub_Number "$2")})
            (C {(typeset)} {(-i)} {(retval)})
            (AndOr
              children: [
                (C {(_Dbg_frame_int_setup)} {($ VSub_Name "$count")})
                (ControlFlow token:<ControlFlow_Return return> arg_word:{(2)})
              ]
              op_id: Op_DPipe
            )
            (C {(typeset)} {(-i)} {(pos)})
            (If
              arms: [
                (if_arm
                  cond: [
                    (Sentence
                      child: 
                        (DParen
                          child: 
                            (ArithBinary
                              op_id: Arith_DEqual
                              left: (ArithVarRef name:signum)
                              right: (ArithWord w:{(Lit_Digits 0)})
                            )
                        )
                      terminator: <Op_Semi ";">
                    )
                  ]
                  action: [
                    (If
                      arms: [
                        (if_arm
                          cond: [
                            (Sentence
                              child: 
                                (DParen
                                  child: 
                                    (ArithBinary
                                      op_id: Arith_Less
                                      left: (ArithVarRef name:count)
                                      right: (ArithWord w:{(Lit_Digits 0)})
                                    )
                                )
                              terminator: <Op_Semi ";">
                            )
                          ]
                          action: [
                            (DParen
                              child: 
                                (BinaryAssign
                                  op_id: Arith_Equal
                                  left: (LhsName name:pos)
                                  right: 
                                    (ArithBinary
                                      op_id: Arith_Minus
                                      left: 
                                        (ArithBinary
                                          op_id: Arith_Plus
                                          left: (ArithVarRef name:_Dbg_stack_size)
                                          right: (ArithVarRef name:count)
                                        )
                                      right: (ArithWord w:{(Lit_Digits 1)})
                                    )
                                )
                            )
                          ]
                          spids: [-1 234]
                        )
                      ]
                      else_action: [
                        (DParen
                          child: 
                            (BinaryAssign
                              op_id: Arith_Equal
                              left: (LhsName name:pos)
                              right: (ArithVarRef name:count)
                            )
                        )
                      ]
                      spids: [255 268]
                    )
                  ]
                  spids: [-1 216]
                )
              ]
              else_action: [
                (DParen
                  child: 
                    (BinaryAssign
                      op_id: Arith_Equal
                      left: (LhsName name:pos)
                      right: 
                        (ArithBinary
                          op_id: Arith_Plus
                          left: (ArithVarRef name:_Dbg_stack_pos)
                          right: 
                            (ArithBinary
                              op_id: Arith_Star
                              left: (ArithVarRef name:count)
                              right: (ArithVarRef name:signum)
                            )
                        )
                    )
                )
              ]
              spids: [271 288]
            )
            (If
              arms: [
                (if_arm
                  cond: [
                    (Sentence
                      child: 
                        (DParen
                          child: 
                            (ArithBinary
                              op_id: Arith_Less
                              left: (ArithVarRef name:pos)
                              right: (ArithWord w:{(Lit_Digits 0)})
                            )
                        )
                      terminator: <Op_Semi ";">
                    )
                  ]
                  action: [
                    (C {(_Dbg_errmsg)} {(SQ <"Would be beyond bottom-most (most recent) entry.">)})
                    (ControlFlow token:<ControlFlow_Return return> arg_word:{(1)})
                  ]
                  spids: [-1 307]
                )
                (if_arm
                  cond: [
                    (Sentence
                      child: 
                        (DParen
                          child: 
                            (ArithBinary
                              op_id: Arith_GreatEqual
                              left: (ArithVarRef name:pos)
                              right: 
                                (ArithBinary
                                  op_id: Arith_Minus
                                  left: (ArithVarRef name:_Dbg_stack_size)
                                  right: (ArithWord w:{(Lit_Digits 1)})
                                )
                            )
                        )
                      terminator: <Op_Semi ";">
                    )
                  ]
                  action: [
                    (C {(_Dbg_errmsg)} {(SQ <"Would be beyond top-most (least recent) entry.">)})
                    (ControlFlow token:<ControlFlow_Return return> arg_word:{(1)})
                  ]
                  spids: [323 342]
                )
              ]
              spids: [-1 357]
            )
            (C {(typeset)} {(-i)} {(adjusted_pos)})
            (Assignment
              keyword: Assign_None
              pairs: [
                (assign_pair
                  lhs: (LhsName name:adjusted_pos)
                  op: Equal
                  rhs: 
                    {
                      (CommandSubPart
                        command_list: 
                          (CommandList
                            children: [(C {(_Dbg_frame_adjusted_pos)} {($ VSub_Name "$pos")})]
                          )
                        left_token: <Left_CommandSub "$(">
                        spids: [369 373]
                      )
                    }
                  spids: [368]
                )
              ]
              spids: [368]
            )
            (Assignment
              keyword: Assign_None
              pairs: [
                (assign_pair
                  lhs: (LhsName name:_Dbg_stack_pos)
                  op: Equal
                  rhs: {($ VSub_Name "$pos")}
                  spids: [376]
                )
              ]
              spids: [376]
            )
            (Assignment
              keyword: Assign_None
              pairs: [
                (assign_pair
                  lhs: (LhsName name:_Dbg_listline)
                  op: Equal
                  rhs: 
                    {
                      (DQ 
                        (BracedVarSub
                          token: <VSub_Name BASH_LINENO>
                          bracket_op: 
                            (ArrayIndex
                              expr: 
                                (ArithBinary
                                  op_id: Arith_Minus
                                  left: (ArithVarRef name:adjusted_pos)
                                  right: (ArithWord w:{(Lit_Digits 1)})
                                )
                            )
                          spids: [404 411]
                        )
                      )
                    }
                  spids: [402]
                )
              ]
              spids: [402]
            )
            (Assignment
              keyword: Assign_None
              pairs: [
                (assign_pair
                  lhs: (LhsName name:_Dbg_frame_last_filename)
                  op: Equal
                  rhs: 
                    {
                      (DQ 
                        (BracedVarSub
                          token: <VSub_Name BASH_SOURCE>
                          bracket_op: (ArrayIndex expr:(ArithVarRef name:adjusted_pos))
                          spids: [417 422]
                        )
                      )
                    }
                  spids: [415]
                )
              ]
              spids: [415]
            )
            (Sentence child:(C {(typeset)} {(filename)}) terminator:<Op_Semi ";">)
            (Assignment
              keyword: Assign_None
              pairs: [
                (assign_pair
                  lhs: (LhsName name:filename)
                  op: Equal
                  rhs: 
                    {
                      (DQ 
                        (CommandSubPart
                          command_list: 
                            (CommandList
                              children: [
                                (C {(_Dbg_file_canonic)} 
                                  {(DQ ($ VSub_Name "$_Dbg_frame_last_filename"))}
                                )
                              ]
                            )
                          left_token: <Left_CommandSub "$(">
                          spids: [433 439]
                        )
                      )
                    }
                  spids: [431]
                )
              ]
              spids: [431]
            )
            (C {(_Dbg_frame_print)} {(SQ <"->">)} {($ VSub_Name "$_Dbg_stack_pos")} {(SQ )} 
              {(DQ ($ VSub_Name "$filename"))} {($ VSub_Name "$_Dbg_listline")} {(SQ )}
            )
            (C {(_Dbg_print_location_and_command)} {(DQ ($ VSub_Name "$_Dbg_listline"))})
            (ControlFlow token:<ControlFlow_Return return> arg_word:{(0)})
          ]
          spids: [140]
        )
      spids: [136 139]
    )
    (FuncDef
      name: _Dbg_frame_file
      body: 
        (BraceGroup
          children: [
            (AndOr
              children: [
                (DParen
                  child: 
                    (ArithBinary
                      op_id: Arith_Great
                      left: (ArithWord w:{($ VSub_Pound "$#")})
                      right: (ArithWord w:{(Lit_Digits 2)})
                    )
                )
                (ControlFlow token:<ControlFlow_Return return> arg_word:{(2)})
              ]
              op_id: Op_DAmp
            )
            (C {(typeset)} {(-i)} 
              {(Lit_VarLike "pos=") 
                (BracedVarSub
                  token: <VSub_Number 1>
                  suffix_op: 
                    (StringUnary
                      op_id: VTest_ColonHyphen
                      arg_word: {($ VSub_Name "$_Dbg_stack_pos")}
                    )
                  spids: [525 529]
                )
              }
            )
            (C {(typeset)} {(-i)} 
              {(Lit_VarLike "basename_only=") 
                (BracedVarSub
                  token: <VSub_Number 2>
                  suffix_op: 
                    (StringUnary
                      op_id: VTest_ColonHyphen
                      arg_word: {($ VSub_Name "$_Dbg_set_basename")}
                    )
                  spids: [537 541]
                )
              }
            )
            (Assignment
              keyword: Assign_None
              pairs: [
                (assign_pair
                  lhs: (LhsName name:_Dbg_frame_filename)
                  op: Equal
                  rhs: 
                    {
                      (BracedVarSub
                        token: <VSub_Name BASH_SOURCE>
                        bracket_op: (ArrayIndex expr:(ArithVarRef name:pos))
                        spids: [545 550]
                      )
                    }
                  spids: [544]
                )
              ]
              spids: [544]
            )
            (AndOr
              children: [
                (DParen child:(ArithVarRef name:basename_only))
                (Assignment
                  keyword: Assign_None
                  pairs: [
                    (assign_pair
                      lhs: (LhsName name:_Dbg_frame_filename)
                      op: Equal
                      rhs: 
                        {
                          (BracedVarSub
                            token: <VSub_Name _Dbg_frame_filename>
                            suffix_op: (StringUnary op_id:VOp1_DPound arg_word:{("*") (Lit_Slash /)})
                            spids: [563 568]
                          )
                        }
                      spids: [562]
                    )
                  ]
                  spids: [562]
                )
              ]
              op_id: Op_DAmp
            )
            (ControlFlow token:<ControlFlow_Return return> arg_word:{(0)})
          ]
          spids: [497]
        )
      spids: [493 496]
    )
    (FuncDef
      name: _Dbg_frame_int_setup
      body: 
        (BraceGroup
          children: [
            (AndOr
              children: [
                (C {(_Dbg_not_running)})
                (ControlFlow token:<ControlFlow_Return return> arg_word:{(1)})
              ]
              op_id: Op_DAmp
            )
            (C {(eval)} {(DQ ($ VSub_Name "$_seteglob"))})
            (If
              arms: [
                (if_arm
                  cond: [
                    (Sentence
                      child: 
                        (DBracket
                          expr: 
                            (LogicalAnd
                              left: 
                                (BoolBinary
                                  op_id: BoolBinary_GlobNEqual
                                  left: {($ VSub_Number "$1")}
                                  right: {(SQ )}
                                )
                              right: 
                                (BoolBinary
                                  op_id: BoolBinary_GlobNEqual
                                  left: {($ VSub_Number "$1")}
                                  right: {($ VSub_Name "$_Dbg_signed_int_pat")}
                                )
                            )
                        )
                      terminator: <Op_Semi ";">
                    )
                  ]
                  action: [
                    (C {(_Dbg_errmsg)} {(DQ ("Bad integer parameter: ") ($ VSub_Number "$1"))})
                    (C {(eval)} {(DQ ($ VSub_Name "$_resteglob"))})
                    (ControlFlow token:<ControlFlow_Return return> arg_word:{(1)})
                  ]
                  spids: [-1 631]
                )
              ]
              spids: [-1 654]
            )
            (C {(eval)} {(DQ ($ VSub_Name "$_resteglob"))})
            (ControlFlow token:<ControlFlow_Return return> arg_word:{(0)})
          ]
          spids: [588]
        )
      spids: [584 587]
    )
    (FuncDef
      name: _Dbg_frame_adjusted_pos
      body: 
        (BraceGroup
          children: [
            (If
              arms: [
                (if_arm
                  cond: [
                    (Sentence
                      child: 
                        (DParen
                          child: 
                            (ArithBinary
                              op_id: Arith_NEqual
                              left: (ArithWord w:{($ VSub_Pound "$#")})
                              right: (ArithWord w:{(Lit_Digits 1)})
                            )
                        )
                      terminator: <Op_Semi ";">
                    )
                  ]
                  action: [
                    (C {(echo)} {(-n)} {(SQ <-1>)})
                    (ControlFlow token:<ControlFlow_Return return> arg_word:{(1)})
                  ]
                  spids: [-1 697]
                )
              ]
              spids: [-1 714]
            )
            (C {(typeset)} {(-i)} {(pos)})
            (DParen
              child: 
                (BinaryAssign
                  op_id: Arith_Equal
                  left: (LhsName name:pos)
                  right: 
                    (ArithBinary
                      op_id: Arith_Plus
                      left: 
                        (ArithBinary
                          op_id: Arith_Minus
                          left: 
                            (ArithWord
                              w: 
                                {
                                  (BracedVarSub
                                    token: <VSub_Name FUNCNAME>
                                    prefix_op: VSub_Pound
                                    bracket_op: (WholeArray op_id:Lit_At)
                                    spids: [727 733]
                                  )
                                }
                            )
                          right: (ArithVarRef name:_Dbg_stack_size)
                        )
                      right: (ArithWord w:{($ VSub_Number "$1")})
                    )
                )
            )
            (C {(echo)} {(-n)} {($ VSub_Name "$pos")})
            (ControlFlow token:<ControlFlow_Return return> arg_word:{(0)})
          ]
          spids: [681]
        )
      spids: [677 680]
    )
    (FuncDef
      name: _Dbg_frame_fn_param_str
      body: 
        (BraceGroup
          children: [
            (AndOr
              children: [
                (DParen
                  child: 
                    (ArithBinary
                      op_id: Arith_DEqual
                      left: (ArithWord w:{($ VSub_Pound "$#")})
                      right: (ArithWord w:{(Lit_Digits 0)})
                    )
                )
                (ControlFlow token:<ControlFlow_Return return> arg_word:{(1)})
              ]
              op_id: Op_DPipe
            )
            (AndOr
              children: [
                (C {(_Dbg_is_int)} {(DQ ($ VSub_Name "$_Dbg_next_argc"))})
                (ControlFlow token:<ControlFlow_Return return> arg_word:{(2)})
              ]
              op_id: Op_DPipe
            )
            (AndOr
              children: [
                (C {(_Dbg_is_int)} {(DQ ($ VSub_Name "$_Dbg_next_argv"))})
                (ControlFlow token:<ControlFlow_Return return> arg_word:{(3)})
              ]
              op_id: Op_DPipe
            )
            (DParen
              child: (UnaryAssign op_id:Node_PostDPlus child:(LhsName name:_Dbg_next_argc))
            )
            (C {(typeset)} {(-i)} 
              {(Lit_VarLike "arg_count=") (BASH_ARGC) (Lit_Other "[") ($ VSub_Name "$_Dbg_next_argc") 
                (Lit_Other "]")
              }
            )
            (If
              arms: [
                (if_arm
                  cond: [
                    (Sentence
                      child: 
                        (DParen
                          child: 
                            (ArithBinary
                              op_id: Arith_DEqual
                              left: (ArithVarRef name:arg_count)
                              right: (ArithWord w:{(Lit_Digits 0)})
                            )
                        )
                      terminator: <Op_Semi ";">
                    )
                  ]
                  action: [
                    (Assignment
                      keyword: Assign_None
                      pairs: [
                        (assign_pair
                          lhs: (LhsName name:_Dbg_parm_str)
                          op: Equal
                          rhs: {(SQ )}
                          spids: [878]
                        )
                      ]
                      spids: [878]
                    )
                  ]
                  spids: [-1 875]
                )
              ]
              else_action: [
                (C {(typeset)} {(-i)} {(i)})
                (Assignment
                  keyword: Assign_None
                  pairs: [
                    (assign_pair
                      lhs: (LhsName name:_Dbg_parm_str)
                      op: Equal
                      rhs: 
                        {
                          (DQ (EscapedLiteralPart token:<Lit_EscapedChar "\\\"">) 
                            (BracedVarSub
                              token: <VSub_Name BASH_ARGV>
                              bracket_op: 
                                (ArrayIndex
                                  expr: 
                                    (ArithBinary
                                      op_id: Arith_Minus
                                      left: 
                                        (ArithBinary
                                          op_id: Arith_Plus
                                          left: (ArithWord w:{($ VSub_Name "$_Dbg_next_argv")})
                                          right: (ArithVarRef name:arg_count)
                                        )
                                      right: (ArithWord w:{(Lit_Digits 1)})
                                    )
                                )
                              spids: [896 905]
                            ) (EscapedLiteralPart token:<Lit_EscapedChar "\\\"">)
                          )
                        }
                      spids: [893]
                    )
                  ]
                  spids: [893]
                )
                (ForExpr
                  init: 
                    (BinaryAssign
                      op_id: Arith_Equal
                      left: (LhsName name:i)
                      right: (ArithWord w:{(Lit_Digits 1)})
                    )
                  cond: 
                    (ArithBinary
                      op_id: Arith_LessEqual
                      left: (ArithVarRef name:i)
                      right: 
                        (ArithBinary
                          op_id: Arith_Minus
                          left: (ArithVarRef name:arg_count)
                          right: (ArithWord w:{(Lit_Digits 1)})
                        )
                    )
                  update: (UnaryAssign op_id:Node_PostDPlus child:(LhsName name:i))
                  body: 
                    (DoGroup
                      children: [
                        (Assignment
                          keyword: Assign_None
                          pairs: [
                            (assign_pair
                              lhs: (LhsName name:_Dbg_parm_str)
                              op: PlusEqual
                              rhs: 
                                {
                                  (DQ (", ") (EscapedLiteralPart token:<Lit_EscapedChar "\\\"">) 
                                    (BracedVarSub
                                      token: <VSub_Name BASH_ARGV>
                                      bracket_op: 
                                        (ArrayIndex
                                          expr: 
                                            (ArithBinary
                                              op_id: Arith_Minus
                                              left: 
                                                (ArithBinary
                                                  op_id: Arith_Minus
                                                  left: 
                                                    (ArithBinary
                                                      op_id: Arith_Plus
                                                      left: 
                                                        (ArithWord
                                                          w: {($ VSub_Name "$_Dbg_next_argv")}
                                                        )
                                                      right: (ArithVarRef name:arg_count)
                                                    )
                                                  right: (ArithVarRef name:i)
                                                )
                                              right: (ArithWord w:{(Lit_Digits 1)})
                                            )
                                        )
                                      spids: [943 954]
                                    ) (EscapedLiteralPart token:<Lit_EscapedChar "\\\"">)
                                  )
                                }
                              spids: [939]
                            )
                          ]
                          spids: [939]
                        )
                      ]
                      spids: [936 959]
                    )
                )
                (DParen
                  child: 
                    (BinaryAssign
                      op_id: Arith_PlusEqual
                      left: (LhsName name:_Dbg_next_argv)
                      right: (ArithVarRef name:arg_count)
                    )
                )
              ]
              spids: [883 970]
            )
            (ControlFlow token:<ControlFlow_Return return> arg_word:{(0)})
          ]
          spids: [782]
        )
      spids: [778 781]
    )
    (FuncDef
      name: _Dbg_frame_set_fn_param
      body: 
        (BraceGroup
          children: [
            (AndOr
              children: [
                (DParen
                  child: 
                    (ArithBinary
                      op_id: Arith_DEqual
                      left: (ArithWord w:{($ VSub_Pound "$#")})
                      right: (ArithWord w:{(Lit_Digits 1)})
                    )
                )
                (ControlFlow token:<ControlFlow_Return return> arg_word:{(1)})
              ]
              op_id: Op_DPipe
            )
            (C {(typeset)} {(-i)} {(Lit_VarLike "skip_count=") ($ VSub_Number "$1")})
            (Assignment
              keyword: Assign_None
              pairs: [(assign_pair lhs:(LhsName name:_Dbg_next_argc) op:Equal rhs:{(1)} spids:[1015])]
              spids: [1015]
            )
            (Assignment
              keyword: Assign_None
              pairs: [(assign_pair lhs:(LhsName name:_Dbg_next_argv) op:Equal rhs:{(1)} spids:[1019])]
              spids: [1019]
            )
            (C {(typeset)} {(-i)} {(i)})
            (ForExpr
              init: 
                (BinaryAssign
                  op_id: Arith_Equal
                  left: (LhsName name:i)
                  right: (ArithWord w:{(Lit_Digits 1)})
                )
              cond: 
                (ArithBinary
                  op_id: Arith_LessEqual
                  left: (ArithVarRef name:i)
                  right: (ArithVarRef name:skip_count)
                )
              update: (UnaryAssign op_id:Node_PostDPlus child:(LhsName name:i))
              body: 
                (DoGroup
                  children: [
                    (C {(typeset)} {(-i)} 
                      {(Lit_VarLike "arg_count=") 
                        (BracedVarSub
                          token: <VSub_Name BASH_ARGC>
                          bracket_op: (ArrayIndex expr:(ArithWord w:{($ VSub_Name "$i")}))
                          spids: [1063 1068]
                        )
                      }
                    )
                    (DParen
                      child: 
                        (BinaryAssign
                          op_id: Arith_PlusEqual
                          left: (LhsName name:_Dbg_next_argv)
                          right: (ArithVarRef name:arg_count)
                        )
                    )
                  ]
                  spids: [1055 1079]
                )
            )
            (DParen
              child: 
                (BinaryAssign
                  op_id: Arith_Equal
                  left: (LhsName name:_Dbg_next_argc)
                  right: (ArithVarRef name:skip_count)
                )
            )
            (DParen
              child: (UnaryAssign op_id:Node_PostDMinus child:(LhsName name:_Dbg_next_argv))
            )
          ]
          spids: [984]
        )
      spids: [980 983]
    )
    (FuncDef
      name: _Dbg_frame_prefix
      body: 
        (BraceGroup
          children: [
            (C {(typeset)} {(Lit_VarLike "prefix=") (SQ <"??">)})
            (C {(typeset)} {(-i)} {(Lit_VarLike "rc=") (0)})
            (If
              arms: [
                (if_arm
                  cond: [
                    (Sentence
                      child: 
                        (DParen
                          child: 
                            (ArithBinary
                              op_id: Arith_DEqual
                              left: (ArithWord w:{($ VSub_Pound "$#")})
                              right: (ArithWord w:{(Lit_Digits 1)})
                            )
                        )
                      terminator: <Op_Semi ";">
                    )
                  ]
                  action: [
                    (C {(typeset)} {(-i)} {(Lit_VarLike "pos=") ($ VSub_Number "$1")})
                    (If
                      arms: [
                        (if_arm
                          cond: [
                            (Sentence
                              child: 
                                (DParen
                                  child: 
                                    (ArithBinary
                                      op_id: Arith_Less
                                      left: (ArithVarRef name:pos)
                                      right: (ArithWord w:{(Lit_Digits 0)})
                                    )
                                )
                              terminator: <Op_Semi ";">
                            )
                          ]
                          action: [
                            (Assignment
                              keyword: Assign_None
                              pairs: [
                                (assign_pair
                                  lhs: (LhsName name:rc)
                                  op: Equal
                                  rhs: {(2)}
                                  spids: [1207]
                                )
                              ]
                              spids: [1207]
                            )
                          ]
                          spids: [-1 1204]
                        )
                        (if_arm
                          cond: [
                            (Sentence
                              child: 
                                (DParen
                                  child: 
                                    (ArithBinary
                                      op_id: Arith_GreatEqual
                                      left: (ArithVarRef name:pos)
                                      right: (ArithVarRef name:_Dbg_stack_size)
                                    )
                                )
                              terminator: <Op_Semi ";">
                            )
                          ]
                          action: [
                            (Assignment
                              keyword: Assign_None
                              pairs: [
                                (assign_pair
                                  lhs: (LhsName name:rc)
                                  op: Equal
                                  rhs: {(3)}
                                  spids: [1227]
                                )
                              ]
                              spids: [1227]
                            )
                          ]
                          spids: [1211 1224]
                        )
                        (if_arm
                          cond: [
                            (Sentence
                              child: 
                                (DParen
                                  child: 
                                    (ArithBinary
                                      op_id: Arith_DEqual
                                      left: (ArithVarRef name:pos)
                                      right: (ArithVarRef name:_Dbg_stack_pos)
                                    )
                                )
                              terminator: <Op_Semi ";">
                            )
                          ]
                          action: [
                            (Assignment
                              keyword: Assign_None
                              pairs: [
                                (assign_pair
                                  lhs: (LhsName name:prefix)
                                  op: Equal
                                  rhs: {(SQ <"->">)}
                                  spids: [1249]
                                )
                              ]
                              spids: [1249]
                            )
                          ]
                          spids: [1231 1246]
                        )
                      ]
                      else_action: [
                        (Assignment
                          keyword: Assign_None
                          pairs: [
                            (assign_pair
                              lhs: (LhsName name:prefix)
                              op: Equal
                              rhs: {(SQ <"##">)}
                              spids: [1258]
                            )
                          ]
                          spids: [1258]
                        )
                      ]
                      spids: [1255 1264]
                    )
                  ]
                  spids: [-1 1180]
                )
              ]
              else_action: [
                (Assignment
                  keyword: Assign_None
                  pairs: [(assign_pair lhs:(LhsName name:rc) op:Equal rhs:{(1)} spids:[1270])]
                  spids: [1270]
                )
              ]
              spids: [1267 1274]
            )
            (C {(echo)} {(-n)} {($ VSub_Name "$prefix")})
            (ControlFlow token:<ControlFlow_Return return> arg_word:{($ VSub_Name "$rc")})
          ]
          spids: [1148]
        )
      spids: [1144 1147]
    )
    (FuncDef
      name: _Dbg_frame_print
      body: 
        (BraceGroup
          children: [
            (C {(typeset)} {(Lit_VarLike "prefix=") ($ VSub_Number "$1")})
            (C {(typeset)} {(-i)} {(Lit_VarLike "pos=") ($ VSub_Number "$2")})
            (C {(typeset)} {(Lit_VarLike "fn=") ($ VSub_Number "$3")})
            (C {(typeset)} {(Lit_VarLike "filename=") (DQ ($ VSub_Number "$4"))})
            (C {(typeset)} {(-i)} {(Lit_VarLike "line=") ($ VSub_Number "$5")})
            (C {(typeset)} {(Lit_VarLike "args=") (DQ ($ VSub_Number "$6"))})
            (C {(typeset)} {(Lit_VarLike "callstr=") ($ VSub_Name "$fn")})
            (AndOr
              children: [
                (DBracket
                  expr: (BoolUnary op_id:BoolUnary_n child:{($ VSub_Name "$args")})
                )
                (Assignment
                  keyword: Assign_None
                  pairs: [
                    (assign_pair
                      lhs: (LhsName name:callstr)
                      op: Equal
                      rhs: {(DQ ($ VSub_Name "$callstr") ("(") ($ VSub_Name "$args") (")"))}
                      spids: [1361]
                    )
                  ]
                  spids: [1361]
                )
              ]
              op_id: Op_DAmp
            )
            (C {(_Dbg_msg)} 
              {
                (DQ ($ VSub_Name "$prefix") ($ VSub_Name "$pos") (" in file ") 
                  (EscapedLiteralPart token:<Lit_EscapedChar "\\`">) ($ VSub_Name "$filename") ("' at line ") ($ VSub_Name "$line")
                )
              }
            )
          ]
          spids: [1298]
        )
      spids: [1294 1297]
    )
  ]
)