(CommandList
  children: [
    (Assignment
      keyword: Assign_Typeset
      flags: [-i]
      pairs: [(assign_pair lhs:(LhsName name:_Dbg_stack_size) op:Equal spids:[87])]
      spids: [83]
    )
    (Assignment
      keyword: Assign_Typeset
      flags: [-i]
      pairs: [(assign_pair lhs:(LhsName name:_Dbg_stack_pos) op:Equal spids:[109])]
      spids: [105]
    )
    (Assignment
      keyword: Assign_Typeset
      pairs: [
        (assign_pair
          lhs: (LhsName name:_Dbg_frame_last_filename)
          op: Equal
          rhs: {(SQ )}
          spids: [120]
        )
      ]
      spids: [118]
    )
    (Assignment
      keyword: Assign_Typeset
      flags: [-i]
      pairs: [(assign_pair lhs:(LhsName name:_Dbg_frame_last_lineno) op:Equal rhs:{(0)} spids:[128])]
      spids: [124]
    )
    (FuncDef
      name: _Dbg_frame_adjust
      body: 
        (BraceGroup
          children: [
            (AndOr
              ops: [Op_DAmp]
              children: [
                (DParen
                  child: 
                    (ArithBinary
                      op_id: Arith_NEqual
                      left: (ArithWord w:{($ VSub_Pound '$#')})
                      right: (ArithWord w:{(Lit_Digits 2)})
                    )
                  spids: [143 150]
                )
                (ControlFlow token:<ControlFlow_Return return> arg_word:{(255)})
              ]
            )
            (Assignment
              keyword: Assign_Typeset
              flags: [-i]
              pairs: [
                (assign_pair
                  lhs: (LhsName name:count)
                  op: Equal
                  rhs: {($ VSub_Number '$1')}
                  spids: [164]
                )
              ]
              spids: [160]
            )
            (Assignment
              keyword: Assign_Typeset
              flags: [-i]
              pairs: [
                (assign_pair
                  lhs: (LhsName name:signum)
                  op: Equal
                  rhs: {($ VSub_Number '$2')}
                  spids: [172]
                )
              ]
              spids: [168]
            )
            (Assignment
              keyword: Assign_Typeset
              flags: [-i]
              pairs: [(assign_pair lhs:(LhsName name:retval) op:Equal spids:[181])]
              spids: [177]
            )
            (AndOr
              ops: [Op_DPipe]
              children: [
                (C {(_Dbg_frame_int_setup)} {($ VSub_Name '$count')})
                (ControlFlow token:<ControlFlow_Return return> arg_word:{(2)})
              ]
            )
            (Assignment
              keyword: Assign_Typeset
              flags: [-i]
              pairs: [(assign_pair lhs:(LhsName name:pos) op:Equal spids:[200])]
              spids: [196]
            )
            (If
              arms: [
                (if_arm
                  cond: [
                    (Sentence
                      child: 
                        (DParen
                          child: 
                            (ArithBinary
                              op_id: Arith_DEqual
                              left: (ArithVarRef name:signum)
                              right: (ArithWord w:{(Lit_Digits 0)})
                            )
                          spids: [205 212]
                        )
                      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)})
                                    )
                                  spids: [221 230]
                                )
                              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: [237 252]
                            )
                          ]
                          spids: [16777215 234]
                        )
                      ]
                      else_action: [
                        (DParen
                          child: 
                            (BinaryAssign
                              op_id: Arith_Equal
                              left: (LhsName name:pos)
                              right: (ArithVarRef name:count)
                            )
                          spids: [258 265]
                        )
                      ]
                      spids: [255 268]
                    )
                  ]
                  spids: [16777215 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: [274 285]
                )
              ]
              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)})
                            )
                          spids: [294 303]
                        )
                      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: [16777215 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)})
                                )
                            )
                          spids: [325 338]
                        )
                      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: [16777215 357]
            )
            (Assignment
              keyword: Assign_Typeset
              flags: [-i]
              pairs: [(assign_pair lhs:(LhsName name:adjusted_pos) op:Equal spids:[365])]
              spids: [361]
            )
            (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: 
                (Assignment
                  keyword: Assign_Typeset
                  pairs: [(assign_pair lhs:(LhsName name:filename) op:Equal spids:[428])]
                  spids: [426]
                )
              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 '$_Dbg_listline'))})
            (ControlFlow token:<ControlFlow_Return return> arg_word:{(0)})
          ]
          spids: [140]
        )
      spids: [136 139]
    )
    (FuncDef
      name: _Dbg_frame_file
      body: 
        (BraceGroup
          children: [
            (AndOr
              ops: [Op_DAmp]
              children: [
                (DParen
                  child: 
                    (ArithBinary
                      op_id: Arith_Great
                      left: (ArithWord w:{($ VSub_Pound '$#')})
                      right: (ArithWord w:{(Lit_Digits 2)})
                    )
                  spids: [500 507]
                )
                (ControlFlow token:<ControlFlow_Return return> arg_word:{(2)})
              ]
            )
            (Assignment
              keyword: Assign_Typeset
              flags: [-i]
              pairs: [
                (assign_pair
                  lhs: (LhsName name:pos)
                  op: Equal
                  rhs: 
                    {
                      (BracedVarSub
                        token: <VSub_Number 1>
                        suffix_op: 
                          (StringUnary
                            op_id: VTest_ColonHyphen
                            arg_word: {($ VSub_Name '$_Dbg_stack_pos')}
                          )
                        spids: [525 529]
                      )
                    }
                  spids: [524]
                )
              ]
              spids: [520]
            )
            (Assignment
              keyword: Assign_Typeset
              flags: [-i]
              pairs: [
                (assign_pair
                  lhs: (LhsName name:basename_only)
                  op: Equal
                  rhs: 
                    {
                      (BracedVarSub
                        token: <VSub_Number 2>
                        suffix_op: 
                          (StringUnary
                            op_id: VTest_ColonHyphen
                            arg_word: {($ VSub_Name '$_Dbg_set_basename')}
                          )
                        spids: [537 541]
                      )
                    }
                  spids: [536]
                )
              ]
              spids: [532]
            )
            (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
              ops: [Op_DAmp]
              children: [
                (DParen child:(ArithVarRef name:basename_only) spids:[553 558])
                (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]
                )
              ]
            )
            (ControlFlow token:<ControlFlow_Return return> arg_word:{(0)})
          ]
          spids: [497]
        )
      spids: [493 496]
    )
    (FuncDef
      name: _Dbg_frame_int_setup
      body: 
        (BraceGroup
          children: [
            (AndOr
              ops: [Op_DAmp]
              children: [
                (C {(_Dbg_not_running)})
                (ControlFlow token:<ControlFlow_Return return> arg_word:{(1)})
              ]
            )
            (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 '$_resteglob'))})
                    (ControlFlow token:<ControlFlow_Return return> arg_word:{(1)})
                  ]
                  spids: [16777215 631]
                )
              ]
              spids: [16777215 654]
            )
            (C {(eval)} {(DQ ($ 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 '$#')})
                              right: (ArithWord w:{(Lit_Digits 1)})
                            )
                          spids: [686 693]
                        )
                      terminator: <Op_Semi ';'>
                    )
                  ]
                  action: [
                    (C {(echo)} {(-n)} {(SQ <-1>)})
                    (ControlFlow token:<ControlFlow_Return return> arg_word:{(1)})
                  ]
                  spids: [16777215 697]
                )
              ]
              spids: [16777215 714]
            )
            (Assignment
              keyword: Assign_Typeset
              flags: [-i]
              pairs: [(assign_pair lhs:(LhsName name:pos) op:Equal spids:[721])]
              spids: [717]
            )
            (DParen
              child: 
                (BinaryAssign
                  op_id: Arith_Equal
                  left: (LhsName name:pos)
                  right: 
                    (ArithBinary
                      op_id: Arith_Plus
                      left: 
                        (ArithBinary
                          op_id: Arith_Minus
                          left: 
                            (ArithWord
                              w: 
                                {
                                  (BracedVarSub
                                    token: <VSub_Name FUNCNAME>
                                    prefix_op: VSub_Pound
                                    bracket_op: (WholeArray op_id:Lit_At)
                                    spids: [727 733]
                                  )
                                }
                            )
                          right: (ArithVarRef name:_Dbg_stack_size)
                        )
                      right: (ArithWord w:{($ VSub_Number '$1')})
                    )
                )
              spids: [724 743]
            )
            (C {(echo)} {(-n)} {($ VSub_Name '$pos')})
            (ControlFlow token:<ControlFlow_Return return> arg_word:{(0)})
          ]
          spids: [681]
        )
      spids: [677 680]
    )
    (FuncDef
      name: _Dbg_frame_fn_param_str
      body: 
        (BraceGroup
          children: [
            (AndOr
              ops: [Op_DPipe]
              children: [
                (DParen
                  child: 
                    (ArithBinary
                      op_id: Arith_DEqual
                      left: (ArithWord w:{($ VSub_Pound '$#')})
                      right: (ArithWord w:{(Lit_Digits 0)})
                    )
                  spids: [785 792]
                )
                (ControlFlow token:<ControlFlow_Return return> arg_word:{(1)})
              ]
            )
            (AndOr
              ops: [Op_DPipe]
              children: [
                (C {(_Dbg_is_int)} {(DQ ($ VSub_Name '$_Dbg_next_argc'))})
                (ControlFlow token:<ControlFlow_Return return> arg_word:{(2)})
              ]
            )
            (AndOr
              ops: [Op_DPipe]
              children: [
                (C {(_Dbg_is_int)} {(DQ ($ VSub_Name '$_Dbg_next_argv'))})
                (ControlFlow token:<ControlFlow_Return return> arg_word:{(3)})
              ]
            )
            (DParen
              child: (UnaryAssign op_id:Node_PostDPlus child:(LhsName name:_Dbg_next_argc))
              spids: [844 848]
            )
            (Assignment
              keyword: Assign_Typeset
              flags: [-i]
              pairs: [
                (assign_pair
                  lhs: (LhsName name:arg_count)
                  op: Equal
                  rhs: {(BASH_ARGC) (Lit_Other '[') ($ VSub_Name '$_Dbg_next_argc') (Lit_Other ']')}
                  spids: [855]
                )
              ]
              spids: [851]
            )
            (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)})
                            )
                          spids: [864 871]
                        )
                      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: [16777215 875]
                )
              ]
              else_action: [
                (Assignment
                  keyword: Assign_Typeset
                  flags: [-i]
                  pairs: [(assign_pair lhs:(LhsName name:i) op:Equal spids:[890])]
                  spids: [886]
                )
                (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 '$_Dbg_next_argv')}
                                                        )
                                                      right: (ArithVarRef name:arg_count)
                                                    )
                                                  right: (ArithVarRef name:i)
                                                )
                                              right: (ArithWord w:{(Lit_Digits 1)})
                                            )
                                        )
                                      spids: [943 954]
                                    ) (EscapedLiteralPart token:<Lit_EscapedChar '\\"'>)
                                  )
                                }
                              spids: [939]
                            )
                          ]
                          spids: [939]
                        )
                      ]
                      spids: [936 959]
                    )
                )
                (DParen
                  child: 
                    (BinaryAssign
                      op_id: Arith_PlusEqual
                      left: (LhsName name:_Dbg_next_argv)
                      right: (ArithVarRef name:arg_count)
                    )
                  spids: [962 967]
                )
              ]
              spids: [883 970]
            )
            (ControlFlow token:<ControlFlow_Return return> arg_word:{(0)})
          ]
          spids: [782]
        )
      spids: [778 781]
    )
    (FuncDef
      name: _Dbg_frame_set_fn_param
      body: 
        (BraceGroup
          children: [
            (AndOr
              ops: [Op_DPipe]
              children: [
                (DParen
                  child: 
                    (ArithBinary
                      op_id: Arith_DEqual
                      left: (ArithWord w:{($ VSub_Pound '$#')})
                      right: (ArithWord w:{(Lit_Digits 1)})
                    )
                  spids: [987 994]
                )
                (ControlFlow token:<ControlFlow_Return return> arg_word:{(1)})
              ]
            )
            (Assignment
              keyword: Assign_Typeset
              flags: [-i]
              pairs: [
                (assign_pair
                  lhs: (LhsName name:skip_count)
                  op: Equal
                  rhs: {($ VSub_Number '$1')}
                  spids: [1007]
                )
              ]
              spids: [1003]
            )
            (Assignment
              keyword: Assign_None
              pairs: [(assign_pair lhs:(LhsName name:_Dbg_next_argc) op:Equal rhs:{(1)} spids:[1015])]
              spids: [1015]
            )
            (Assignment
              keyword: Assign_None
              pairs: [(assign_pair lhs:(LhsName name:_Dbg_next_argv) op:Equal rhs:{(1)} spids:[1019])]
              spids: [1019]
            )
            (Assignment
              keyword: Assign_Typeset
              flags: [-i]
              pairs: [(assign_pair lhs:(LhsName name:i) op:Equal spids:[1028])]
              spids: [1024]
            )
            (ForExpr
              init: 
                (BinaryAssign
                  op_id: Arith_Equal
                  left: (LhsName name:i)
                  right: (ArithWord w:{(Lit_Digits 1)})
                )
              cond: 
                (ArithBinary
                  op_id: Arith_LessEqual
                  left: (ArithVarRef name:i)
                  right: (ArithVarRef name:skip_count)
                )
              update: (UnaryAssign op_id:Node_PostDPlus child:(LhsName name:i))
              body: 
                (DoGroup
                  children: [
                    (Assignment
                      keyword: Assign_Typeset
                      flags: [-i]
                      pairs: [
                        (assign_pair
                          lhs: (LhsName name:arg_count)
                          op: Equal
                          rhs: 
                            {
                              (BracedVarSub
                                token: <VSub_Name BASH_ARGC>
                                bracket_op: (ArrayIndex expr:(ArithWord w:{($ VSub_Name '$i')}))
                                spids: [1063 1068]
                              )
                            }
                          spids: [1062]
                        )
                      ]
                      spids: [1058]
                    )
                    (DParen
                      child: 
                        (BinaryAssign
                          op_id: Arith_PlusEqual
                          left: (LhsName name:_Dbg_next_argv)
                          right: (ArithVarRef name:arg_count)
                        )
                      spids: [1071 1076]
                    )
                  ]
                  spids: [1055 1079]
                )
            )
            (DParen
              child: 
                (BinaryAssign
                  op_id: Arith_Equal
                  left: (LhsName name:_Dbg_next_argc)
                  right: (ArithVarRef name:skip_count)
                )
              spids: [1090 1095]
            )
            (DParen
              child: (UnaryAssign op_id:Node_PostDMinus child:(LhsName name:_Dbg_next_argv))
              spids: [1098 1102]
            )
          ]
          spids: [984]
        )
      spids: [980 983]
    )
    (FuncDef
      name: _Dbg_frame_prefix
      body: 
        (BraceGroup
          children: [
            (Assignment
              keyword: Assign_Typeset
              pairs: [(assign_pair lhs:(LhsName name:prefix) op:Equal rhs:{(SQ <'??'>)} spids:[1153])]
              spids: [1151]
            )
            (Assignment
              keyword: Assign_Typeset
              flags: [-i]
              pairs: [(assign_pair lhs:(LhsName name:rc) op:Equal rhs:{(0)} spids:[1163])]
              spids: [1159]
            )
            (If
              arms: [
                (if_arm
                  cond: [
                    (Sentence
                      child: 
                        (DParen
                          child: 
                            (ArithBinary
                              op_id: Arith_DEqual
                              left: (ArithWord w:{($ VSub_Pound '$#')})
                              right: (ArithWord w:{(Lit_Digits 1)})
                            )
                          spids: [1169 1176]
                        )
                      terminator: <Op_Semi ';'>
                    )
                  ]
                  action: [
                    (Assignment
                      keyword: Assign_Typeset
                      flags: [-i]
                      pairs: [
                        (assign_pair
                          lhs: (LhsName name:pos)
                          op: Equal
                          rhs: {($ VSub_Number '$1')}
                          spids: [1187]
                        )
                      ]
                      spids: [1183]
                    )
                    (If
                      arms: [
                        (if_arm
                          cond: [
                            (Sentence
                              child: 
                                (DParen
                                  child: 
                                    (ArithBinary
                                      op_id: Arith_Less
                                      left: (ArithVarRef name:pos)
                                      right: (ArithWord w:{(Lit_Digits 0)})
                                    )
                                  spids: [1193 1200]
                                )
                              terminator: <Op_Semi ';'>
                            )
                          ]
                          action: [
                            (Assignment
                              keyword: Assign_None
                              pairs: [
                                (assign_pair
                                  lhs: (LhsName name:rc)
                                  op: Equal
                                  rhs: {(2)}
                                  spids: [1207]
                                )
                              ]
                              spids: [1207]
                            )
                          ]
                          spids: [16777215 1204]
                        )
                        (if_arm
                          cond: [
                            (Sentence
                              child: 
                                (DParen
                                  child: 
                                    (ArithBinary
                                      op_id: Arith_GreatEqual
                                      left: (ArithVarRef name:pos)
                                      right: (ArithVarRef name:_Dbg_stack_size)
                                    )
                                  spids: [1213 1220]
                                )
                              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)
                                    )
                                  spids: [1233 1242]
                                )
                              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: [16777215 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 '$rc')})
          ]
          spids: [1148]
        )
      spids: [1144 1147]
    )
    (FuncDef
      name: _Dbg_frame_print
      body: 
        (BraceGroup
          children: [
            (Assignment
              keyword: Assign_Typeset
              pairs: [
                (assign_pair
                  lhs: (LhsName name:prefix)
                  op: Equal
                  rhs: {($ VSub_Number '$1')}
                  spids: [1303]
                )
              ]
              spids: [1301]
            )
            (Assignment
              keyword: Assign_Typeset
              flags: [-i]
              pairs: [
                (assign_pair
                  lhs: (LhsName name:pos)
                  op: Equal
                  rhs: {($ VSub_Number '$2')}
                  spids: [1311]
                )
              ]
              spids: [1307]
            )
            (Assignment
              keyword: Assign_Typeset
              pairs: [
                (assign_pair
                  lhs: (LhsName name:fn)
                  op: Equal
                  rhs: {($ VSub_Number '$3')}
                  spids: [1317]
                )
              ]
              spids: [1315]
            )
            (Assignment
              keyword: Assign_Typeset
              pairs: [
                (assign_pair
                  lhs: (LhsName name:filename)
                  op: Equal
                  rhs: {(DQ ($ VSub_Number '$4'))}
                  spids: [1323]
                )
              ]
              spids: [1321]
            )
            (Assignment
              keyword: Assign_Typeset
              flags: [-i]
              pairs: [
                (assign_pair
                  lhs: (LhsName name:line)
                  op: Equal
                  rhs: {($ VSub_Number '$5')}
                  spids: [1333]
                )
              ]
              spids: [1329]
            )
            (Assignment
              keyword: Assign_Typeset
              pairs: [
                (assign_pair
                  lhs: (LhsName name:args)
                  op: Equal
                  rhs: {(DQ ($ VSub_Number '$6'))}
                  spids: [1339]
                )
              ]
              spids: [1337]
            )
            (Assignment
              keyword: Assign_Typeset
              pairs: [
                (assign_pair
                  lhs: (LhsName name:callstr)
                  op: Equal
                  rhs: {($ VSub_Name '$fn')}
                  spids: [1347]
                )
              ]
              spids: [1345]
            )
            (AndOr
              ops: [Op_DAmp]
              children: [
                (DBracket
                  expr: (BoolUnary op_id:BoolUnary_n child:{($ VSub_Name '$args')})
                )
                (Assignment
                  keyword: Assign_None
                  pairs: [
                    (assign_pair
                      lhs: (LhsName name:callstr)
                      op: Equal
                      rhs: {(DQ ($ VSub_Name '$callstr') ('(') ($ VSub_Name '$args') (')'))}
                      spids: [1361]
                    )
                  ]
                  spids: [1361]
                )
              ]
            )
            (C {(_Dbg_msg)} 
              {
                (DQ ($ 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]
    )
  ]
)