(command.CommandList
  children: [
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      keyword: <Id.KW_Function function>
      name_tok: <_Dbg_set_debugger_internal>
      name: _Dbg_set_debugger_internal
      body: 
        (BraceGroup
          left: <Id.Lit_LBrace '{'>
          children: [
            (command.Sentence
              child: 
                (command.ShAssignment
                  left: <Id.Lit_VarLike 'IFS='>
                  pairs: [
                    (AssignPair
                      left: <Id.Lit_VarLike 'IFS='>
                      lhs: (sh_lhs_expr.Name left:<Id.Lit_VarLike 'IFS='> name:IFS)
                      op: assign_op.Equal
                      rhs: {(DQ ($ Id.VSub_DollarName _Dbg_space_IFS))}
                    )
                  ]
                  redirects: []
                )
              terminator: <Id.Op_Semi _>
            )
            (command.ShAssignment
              left: <Id.Lit_VarLike 'PS4='>
              pairs: [
                (AssignPair
                  left: <Id.Lit_VarLike 'PS4='>
                  lhs: (sh_lhs_expr.Name left:<Id.Lit_VarLike 'PS4='> name:PS4)
                  op: assign_op.Equal
                  rhs: {(SQ <'+ dbg (${BASH_SOURCE}:${LINENO}[$BASH_SUBSHELL]): ${FUNCNAME[0]}\\n'>)}
                )
              ]
              redirects: []
            )
          ]
          redirects: []
          right: <Id.Lit_RBrace '}'>
        )
    )
    (command.ShFunction
      keyword: <Id.KW_Function function>
      name_tok: <_Dbg_restore_user_vars>
      name: _Dbg_restore_user_vars
      body: 
        (BraceGroup
          left: <Id.Lit_LBrace '{'>
          children: [
            (command.Sentence
              child: 
                (command.ShAssignment
                  left: <Id.Lit_VarLike 'IFS='>
                  pairs: [
                    (AssignPair
                      left: <Id.Lit_VarLike 'IFS='>
                      lhs: (sh_lhs_expr.Name left:<Id.Lit_VarLike 'IFS='> name:IFS)
                      op: assign_op.Equal
                      rhs: {(DQ ($ Id.VSub_DollarName _Dbg_space_IFS))}
                    )
                  ]
                  redirects: []
                )
              terminator: <Id.Op_Semi _>
            )
            (command.Simple
              blame_tok: <set>
              more_env: []
              words: [{<set>} {<-> ($ Id.VSub_DollarName _Dbg_old_set_opts)}]
              redirects: []
              do_fork: T
            )
            (command.Sentence
              child: 
                (command.ShAssignment
                  left: <Id.Lit_VarLike 'IFS='>
                  pairs: [
                    (AssignPair
                      left: <Id.Lit_VarLike 'IFS='>
                      lhs: (sh_lhs_expr.Name left:<Id.Lit_VarLike 'IFS='> name:IFS)
                      op: assign_op.Equal
                      rhs: {(DQ ($ Id.VSub_DollarName _Dbg_old_IFS))}
                    )
                  ]
                  redirects: []
                )
              terminator: <Id.Op_Semi _>
            )
            (command.ShAssignment
              left: <Id.Lit_VarLike 'PS4='>
              pairs: [
                (AssignPair
                  left: <Id.Lit_VarLike 'PS4='>
                  lhs: (sh_lhs_expr.Name left:<Id.Lit_VarLike 'PS4='> name:PS4)
                  op: assign_op.Equal
                  rhs: {(DQ ($ Id.VSub_DollarName _Dbg_old_PS4))}
                )
              ]
              redirects: []
            )
            (command.AndOr
              children: [
                (command.DParen
                  left: <Id.Op_DLeftParen _>
                  child: 
                    (arith_expr.Binary
                      op_id: Id.Arith_DEqual
                      left: ($ Id.Lit_ArithVarLike _Dbg_old_set_nullglob)
                      right: {<Id.Lit_Digits 0>}
                    )
                  right: <Id.Op_DRightParen _>
                  redirects: []
                )
                (command.Simple
                  blame_tok: <shopt>
                  more_env: []
                  words: [{<shopt>} {<-s>} {<nullglob>}]
                  redirects: []
                  do_fork: T
                )
              ]
              ops: [<Id.Op_DAmp _>]
            )
          ]
          redirects: []
          right: <Id.Lit_RBrace '}'>
        )
    )
    (command.ShFunction
      name_tok: <_Dbg_save_args>
      name: _Dbg_save_args
      body: 
        (BraceGroup
          left: <Id.Lit_LBrace '{'>
          children: [
            (command.Simple
              blame_tok: <typeset>
              more_env: []
              words: [
                {<typeset>}
                {<-i>}
                {<Id.Lit_VarLike '_Dbg_n='> 
                  (BracedVarSub
                    left: <Id.Left_DollarBrace '${'>
                    token: <Id.VSub_At '@'>
                    var_name: '@'
                    prefix_op: <Id.VSub_Pound '#'>
                    right: <Id.Right_DollarBrace '}'>
                  )
                }
              ]
              redirects: []
              do_fork: T
            )
            (command.Simple
              blame_tok: <typeset>
              more_env: []
              words: [{<typeset>} {<-i>} {<_Dbg_i>}]
              redirects: []
              do_fork: T
            )
            (command.Simple
              blame_tok: <typeset>
              more_env: []
              words: [
                {<typeset>}
                {<-i>}
                {<Id.Lit_VarLike '_Dbg_arg_max='> 
                  (BracedVarSub
                    left: <Id.Left_DollarBrace '${'>
                    token: <Id.VSub_Name _Dbg_arg>
                    var_name: _Dbg_arg
                    prefix_op: <Id.VSub_Pound '#'>
                    bracket_op: (bracket_op.WholeArray op_id:Id.Lit_At)
                    right: <Id.Right_DollarBrace '}'>
                  )
                }
              ]
              redirects: []
              do_fork: T
            )
            (command.ForExpr
              keyword: <Id.KW_For for>
              init: 
                (arith_expr.BinaryAssign
                  op_id: Id.Arith_Equal
                  left: ($ Id.Lit_ArithVarLike _Dbg_i)
                  right: ($ Id.Lit_ArithVarLike _Dbg_arg_max)
                )
              cond: 
                (arith_expr.Binary
                  op_id: Id.Arith_Great
                  left: ($ Id.Lit_ArithVarLike _Dbg_i)
                  right: ($ Id.Lit_ArithVarLike _Dbg_n)
                )
              update: 
                (arith_expr.UnaryAssign
                  op_id: Id.Node_PostDMinus
                  child: ($ Id.Lit_ArithVarLike _Dbg_i)
                )
              body: 
                (command.DoGroup
                  left: <Id.KW_Do do>
                  children: [
                    (command.Simple
                      blame_tok: <unset>
                      more_env: []
                      words: [
                        {<unset>}
                        {<Id.Lit_ArrayLhsOpen '_Dbg_arg['> ($ Id.VSub_DollarName _Dbg_i) 
                          <Id.Lit_RBracket ']'>
                        }
                      ]
                      redirects: []
                      do_fork: T
                    )
                  ]
                  right: <Id.KW_Done done>
                )
              redirects: []
            )
            (command.ForExpr
              keyword: <Id.KW_For for>
              init: 
                (arith_expr.BinaryAssign
                  op_id: Id.Arith_Equal
                  left: ($ Id.Lit_ArithVarLike _Dbg_i)
                  right: {<Id.Lit_Digits 1>}
                )
              cond: 
                (arith_expr.Binary
                  op_id: Id.Arith_Great
                  left: ($ Id.Lit_ArithVarLike _Dbg_n)
                  right: {<Id.Lit_Digits 0>}
                )
              update: 
                (arith_expr.UnaryAssign
                  op_id: Id.Node_PostDMinus
                  child: ($ Id.Lit_ArithVarLike _Dbg_n)
                )
              body: 
                (command.DoGroup
                  left: <Id.KW_Do do>
                  children: [
                    (command.ShAssignment
                      left: <Id.Lit_ArrayLhsOpen '_Dbg_arg['>
                      pairs: [
                        (AssignPair
                          left: <Id.Lit_ArrayLhsOpen '_Dbg_arg['>
                          lhs: 
                            (sh_lhs_expr.IndexedName
                              left: <Id.Lit_ArrayLhsOpen '_Dbg_arg['>
                              name: _Dbg_arg
                              index: {($ Id.VSub_DollarName _Dbg_i)}
                            )
                          op: assign_op.Equal
                          rhs: {(DQ ($ Id.VSub_Number 1))}
                        )
                      ]
                      redirects: []
                    )
                    (command.DParen
                      left: <Id.Op_DLeftParen _>
                      child: 
                        (arith_expr.UnaryAssign
                          op_id: Id.Node_PostDPlus
                          child: ($ Id.Lit_ArithVarLike _Dbg_i)
                        )
                      right: <Id.Op_DRightParen _>
                      redirects: []
                    )
                    (command.Simple
                      blame_tok: <shift>
                      more_env: []
                      words: [{<shift>}]
                      redirects: []
                      do_fork: T
                    )
                  ]
                  right: <Id.KW_Done done>
                )
              redirects: []
            )
            (command.Simple
              blame_tok: <unset>
              more_env: []
              words: [{<unset>} {<Id.Lit_ArrayLhsOpen '_Dbg_arg['> <0> <Id.Lit_RBracket ']'>}]
              redirects: []
              do_fork: T
            )
          ]
          redirects: []
          right: <Id.Lit_RBrace '}'>
        )
    )
    (command.ShFunction
      keyword: <Id.KW_Function function>
      name_tok: <_Dbg_set_debugger_entry>
      name: _Dbg_set_debugger_entry
      body: 
        (BraceGroup
          left: <Id.Lit_LBrace '{'>
          children: [
            (command.Simple
              blame_tok: <trap>
              more_env: []
              words: [{<trap>} {(SQ )} {<DEBUG>}]
              redirects: []
              do_fork: T
            )
            (command.Simple
              blame_tok: <typeset>
              more_env: []
              words: [
                {<typeset>}
                {<-li>}
                {<Id.Lit_VarLike 'discard_top_fn_count='> 
                  (BracedVarSub
                    left: <Id.Left_DollarBrace '${'>
                    token: <Id.VSub_Number 1>
                    var_name: 1
                    suffix_op: (suffix_op.Unary op:<Id.VTest_ColonHyphen _> arg_word:{<2>})
                    right: <Id.Right_DollarBrace '}'>
                  )
                }
              ]
              redirects: []
              do_fork: T
            )
            (command.ShAssignment
              left: <Id.Lit_VarLike '_Dbg_cur_fn='>
              pairs: [
                (AssignPair
                  left: <Id.Lit_VarLike '_Dbg_cur_fn='>
                  lhs: (sh_lhs_expr.Name left:<Id.Lit_VarLike '_Dbg_cur_fn='> name:_Dbg_cur_fn)
                  op: assign_op.Equal
                  rhs: 
                    {
                      (BracedVarSub
                        left: <Id.Left_DollarBrace '${'>
                        token: <Id.VSub_Name FUNCNAME>
                        var_name: FUNCNAME
                        bracket_op: 
                          (bracket_op.ArrayIndex
                            expr: {($ Id.VSub_DollarName discard_top_fn_count)}
                          )
                        right: <Id.Right_DollarBrace '}'>
                      )
                    }
                )
              ]
              redirects: []
            )
            (command.ShAssignment
              left: <Id.Lit_VarLike '_Dbg_frame_last_lineno='>
              pairs: [
                (AssignPair
                  left: <Id.Lit_VarLike '_Dbg_frame_last_lineno='>
                  lhs: 
                    (sh_lhs_expr.Name
                      left: <Id.Lit_VarLike '_Dbg_frame_last_lineno='>
                      name: _Dbg_frame_last_lineno
                    )
                  op: assign_op.Equal
                  rhs: 
                    {
                      (BracedVarSub
                        left: <Id.Left_DollarBrace '${'>
                        token: <Id.VSub_Name BASH_LINENO>
                        var_name: BASH_LINENO
                        bracket_op: (bracket_op.ArrayIndex expr:{<Id.Lit_Digits 1>})
                        right: <Id.Right_DollarBrace '}'>
                      )
                    }
                )
              ]
              redirects: []
            )
            (command.AndOr
              children: [
                (command.DParen
                  left: <Id.Op_DLeftParen _>
                  child: 
                    (arith_expr.Binary
                      op_id: Id.Arith_Less
                      left: ($ Id.Lit_ArithVarLike _Dbg_frame_last_lineno)
                      right: {<Id.Lit_Digits 1>}
                    )
                  right: <Id.Op_DRightParen _>
                  redirects: []
                )
                (command.Simple
                  blame_tok: <let>
                  more_env: []
                  words: [{<let>} {<Id.Lit_VarLike '_Dbg_frame_last_lineno='> <1>}]
                  redirects: []
                  do_fork: T
                )
              ]
              ops: [<Id.Op_DAmp _>]
            )
            (command.ShAssignment
              left: <Id.Lit_VarLike '_Dbg_old_IFS='>
              pairs: [
                (AssignPair
                  left: <Id.Lit_VarLike '_Dbg_old_IFS='>
                  lhs: (sh_lhs_expr.Name left:<Id.Lit_VarLike '_Dbg_old_IFS='> name:_Dbg_old_IFS)
                  op: assign_op.Equal
                  rhs: {(DQ ($ Id.VSub_DollarName IFS))}
                )
              ]
              redirects: []
            )
            (command.ShAssignment
              left: <Id.Lit_VarLike '_Dbg_old_PS4='>
              pairs: [
                (AssignPair
                  left: <Id.Lit_VarLike '_Dbg_old_PS4='>
                  lhs: (sh_lhs_expr.Name left:<Id.Lit_VarLike '_Dbg_old_PS4='> name:_Dbg_old_PS4)
                  op: assign_op.Equal
                  rhs: {(DQ ($ Id.VSub_DollarName PS4))}
                )
              ]
              redirects: []
            )
            (command.DParen
              left: <Id.Op_DLeftParen _>
              child: 
                (arith_expr.BinaryAssign
                  op_id: Id.Arith_Equal
                  left: ($ Id.Lit_ArithVarLike _Dbg_stack_size)
                  right: 
                    (arith_expr.Binary
                      op_id: Id.Arith_Minus
                      left: 
                        (arith_expr.Binary
                          op_id: Id.Arith_Plus
                          left: 
                            {
                              (BracedVarSub
                                left: <Id.Left_DollarBrace '${'>
                                token: <Id.VSub_Name FUNCNAME>
                                var_name: FUNCNAME
                                prefix_op: <Id.VSub_Pound '#'>
                                bracket_op: (bracket_op.WholeArray op_id:Id.Lit_At)
                                right: <Id.Right_DollarBrace '}'>
                              )
                            }
                          right: {<Id.Lit_Digits 1>}
                        )
                      right: ($ Id.Lit_ArithVarLike discard_top_fn_count)
                    )
                )
              right: <Id.Op_DRightParen _>
              redirects: []
            )
            (command.ShAssignment
              left: <Id.Lit_VarLike '_Dbg_stack_pos='>
              pairs: [
                (AssignPair
                  left: <Id.Lit_VarLike '_Dbg_stack_pos='>
                  lhs: (sh_lhs_expr.Name left:<Id.Lit_VarLike '_Dbg_stack_pos='> name:_Dbg_stack_pos)
                  op: assign_op.Equal
                  rhs: {<_0>}
                )
              ]
              redirects: []
            )
            (command.ShAssignment
              left: <Id.Lit_VarLike '_Dbg_listline='>
              pairs: [
                (AssignPair
                  left: <Id.Lit_VarLike '_Dbg_listline='>
                  lhs: (sh_lhs_expr.Name left:<Id.Lit_VarLike '_Dbg_listline='> name:_Dbg_listline)
                  op: assign_op.Equal
                  rhs: {<_Dbg_frame_last_lineno>}
                )
              ]
              redirects: []
            )
            (command.Simple
              blame_tok: <_Dbg_set_debugger_internal>
              more_env: []
              words: [{<_Dbg_set_debugger_internal>}]
              redirects: []
              do_fork: T
            )
            (command.ShAssignment
              left: <Id.Lit_VarLike '_Dbg_frame_last_filename='>
              pairs: [
                (AssignPair
                  left: <Id.Lit_VarLike '_Dbg_frame_last_filename='>
                  lhs: 
                    (sh_lhs_expr.Name
                      left: <Id.Lit_VarLike '_Dbg_frame_last_filename='>
                      name: _Dbg_frame_last_filename
                    )
                  op: assign_op.Equal
                  rhs: 
                    {
                      (BracedVarSub
                        left: <Id.Left_DollarBrace '${'>
                        token: <Id.VSub_Name BASH_SOURCE>
                        var_name: BASH_SOURCE
                        bracket_op: 
                          (bracket_op.ArrayIndex
                            expr: {($ Id.VSub_DollarName discard_top_fn_count)}
                          )
                        suffix_op: 
                          (suffix_op.Unary
                            op: <Id.VTest_ColonHyphen _>
                            arg_word: {($ Id.VSub_DollarName _Dbg_bogus_file)}
                          )
                        right: <Id.Right_DollarBrace '}'>
                      )
                    }
                )
              ]
              redirects: []
            )
            (command.ShAssignment
              left: <Id.Lit_VarLike '_Dbg_frame_last_filename='>
              pairs: [
                (AssignPair
                  left: <Id.Lit_VarLike '_Dbg_frame_last_filename='>
                  lhs: 
                    (sh_lhs_expr.Name
                      left: <Id.Lit_VarLike '_Dbg_frame_last_filename='>
                      name: _Dbg_frame_last_filename
                    )
                  op: assign_op.Equal
                  rhs: 
                    {
                      (CommandSub
                        left_token: <Id.Left_DollarParen '$('>
                        child: 
                          (command.Simple
                            blame_tok: <_Dbg_resolve_expand_filename>
                            more_env: []
                            words: [
                              {<_Dbg_resolve_expand_filename>}
                              {(DQ ($ Id.VSub_DollarName _Dbg_frame_last_filename))}
                            ]
                            redirects: []
                            do_fork: T
                          )
                        right: <Id.Eof_RParen _>
                      )
                    }
                )
              ]
              redirects: []
            )
            (command.Simple
              blame_tok: <_Dbg_source_journal>
              more_env: []
              words: [{<_Dbg_source_journal>}]
              redirects: []
              do_fork: T
            )
            (command.If
              if_kw: <Id.KW_If if>
              arms: [
                (IfArm
                  keyword: <Id.KW_If if>
                  cond: 
                    (condition.Shell
                      commands: [
                        (command.Sentence
                          child: 
                            (command.DParen
                              left: <Id.Op_DLeftParen _>
                              child: 
                                (arith_expr.Binary
                                  op_id: Id.Arith_Great
                                  left: ($ Id.Lit_ArithVarLike _Dbg_QUIT_LEVELS)
                                  right: {<Id.Lit_Digits 0>}
                                )
                              right: <Id.Op_DRightParen _>
                              redirects: []
                            )
                          terminator: <Id.Op_Semi _>
                        )
                      ]
                    )
                  then_kw: <Id.KW_Then then>
                  action: [
                    (command.Simple
                      blame_tok: <_Dbg_do_quit>
                      more_env: []
                      words: [{<_Dbg_do_quit>} {($ Id.VSub_DollarName _Dbg_debugged_exit_code)}]
                      redirects: []
                      do_fork: T
                    )
                  ]
                  spids: [498 513]
                )
              ]
              else_action: []
              fi_kw: <Id.KW_Fi fi>
              redirects: []
            )
          ]
          redirects: []
          right: <Id.Lit_RBrace '}'>
        )
    )
    (command.ShFunction
      keyword: <Id.KW_Function function>
      name_tok: <_Dbg_set_to_return_from_debugger>
      name: _Dbg_set_to_return_from_debugger
      body: 
        (BraceGroup
          left: <Id.Lit_LBrace '{'>
          children: [
            (command.ShAssignment
              left: <Id.Lit_VarLike '_Dbg_stop_reason='>
              pairs: [
                (AssignPair
                  left: <Id.Lit_VarLike '_Dbg_stop_reason='>
                  lhs: 
                    (sh_lhs_expr.Name
                      left: <Id.Lit_VarLike '_Dbg_stop_reason='>
                      name: _Dbg_stop_reason
                    )
                  op: assign_op.Equal
                  rhs: {(SQ )}
                )
              ]
              redirects: []
            )
            (command.ShAssignment
              left: <Id.Lit_VarLike '_Dbg_listline='>
              pairs: [
                (AssignPair
                  left: <Id.Lit_VarLike '_Dbg_listline='>
                  lhs: (sh_lhs_expr.Name left:<Id.Lit_VarLike '_Dbg_listline='> name:_Dbg_listline)
                  op: assign_op.Equal
                  rhs: {<0>}
                )
              ]
              redirects: []
            )
            (command.ShAssignment
              left: <Id.Lit_VarLike '_Dbg_last_lineno='>
              pairs: [
                (AssignPair
                  left: <Id.Lit_VarLike '_Dbg_last_lineno='>
                  lhs: 
                    (sh_lhs_expr.Name
                      left: <Id.Lit_VarLike '_Dbg_last_lineno='>
                      name: _Dbg_last_lineno
                    )
                  op: assign_op.Equal
                  rhs: {(${ Id.VSub_Name _Dbg_frame_last_lineno)}
                )
              ]
              redirects: []
            )
            (command.If
              if_kw: <Id.KW_If if>
              arms: [
                (IfArm
                  keyword: <Id.KW_If if>
                  cond: 
                    (condition.Shell
                      commands: [
                        (command.Sentence
                          child: 
                            (command.DParen
                              left: <Id.Op_DLeftParen _>
                              child: 
                                (arith_expr.Binary
                                  op_id: Id.Arith_NEqual
                                  left: {($ Id.VSub_Number 1)}
                                  right: {<Id.Lit_Digits 0>}
                                )
                              right: <Id.Op_DRightParen _>
                              redirects: []
                            )
                          terminator: <Id.Op_Semi _>
                        )
                      ]
                    )
                  then_kw: <Id.KW_Then then>
                  action: [
                    (command.ShAssignment
                      left: <Id.Lit_VarLike '_Dbg_last_bash_command='>
                      pairs: [
                        (AssignPair
                          left: <Id.Lit_VarLike '_Dbg_last_bash_command='>
                          lhs: 
                            (sh_lhs_expr.Name
                              left: <Id.Lit_VarLike '_Dbg_last_bash_command='>
                              name: _Dbg_last_bash_command
                            )
                          op: assign_op.Equal
                          rhs: {(DQ ($ Id.VSub_DollarName _Dbg_bash_command))}
                        )
                      ]
                      redirects: []
                    )
                    (command.ShAssignment
                      left: <Id.Lit_VarLike '_Dbg_last_source_file='>
                      pairs: [
                        (AssignPair
                          left: <Id.Lit_VarLike '_Dbg_last_source_file='>
                          lhs: 
                            (sh_lhs_expr.Name
                              left: <Id.Lit_VarLike '_Dbg_last_source_file='>
                              name: _Dbg_last_source_file
                            )
                          op: assign_op.Equal
                          rhs: {(DQ ($ Id.VSub_DollarName _Dbg_frame_last_filename))}
                        )
                      ]
                      redirects: []
                    )
                  ]
                  spids: [553 568]
                )
              ]
              else_kw: <Id.KW_Else else>
              else_action: [
                (command.ShAssignment
                  left: <Id.Lit_VarLike '_Dbg_last_lineno='>
                  pairs: [
                    (AssignPair
                      left: <Id.Lit_VarLike '_Dbg_last_lineno='>
                      lhs: 
                        (sh_lhs_expr.Name
                          left: <Id.Lit_VarLike '_Dbg_last_lineno='>
                          name: _Dbg_last_lineno
                        )
                      op: assign_op.Equal
                      rhs: 
                        {
                          (BracedVarSub
                            left: <Id.Left_DollarBrace '${'>
                            token: <Id.VSub_Name BASH_LINENO>
                            var_name: BASH_LINENO
                            bracket_op: (bracket_op.ArrayIndex expr:{<Id.Lit_Digits 1>})
                            right: <Id.Right_DollarBrace '}'>
                          )
                        }
                    )
                  ]
                  redirects: []
                )
                (command.ShAssignment
                  left: <Id.Lit_VarLike '_Dbg_last_source_file='>
                  pairs: [
                    (AssignPair
                      left: <Id.Lit_VarLike '_Dbg_last_source_file='>
                      lhs: 
                        (sh_lhs_expr.Name
                          left: <Id.Lit_VarLike '_Dbg_last_source_file='>
                          name: _Dbg_last_source_file
                        )
                      op: assign_op.Equal
                      rhs: 
                        {
                          (BracedVarSub
                            left: <Id.Left_DollarBrace '${'>
                            token: <Id.VSub_Name BASH_SOURCE>
                            var_name: BASH_SOURCE
                            bracket_op: (bracket_op.ArrayIndex expr:{<Id.Lit_Digits 2>})
                            suffix_op: 
                              (suffix_op.Unary
                                op: <Id.VTest_ColonHyphen _>
                                arg_word: {($ Id.VSub_DollarName _Dbg_bogus_file)}
                              )
                            right: <Id.Right_DollarBrace '}'>
                          )
                        }
                    )
                  ]
                  redirects: []
                )
                (command.ShAssignment
                  left: <Id.Lit_VarLike '_Dbg_last_bash_command='>
                  pairs: [
                    (AssignPair
                      left: <Id.Lit_VarLike '_Dbg_last_bash_command='>
                      lhs: 
                        (sh_lhs_expr.Name
                          left: <Id.Lit_VarLike '_Dbg_last_bash_command='>
                          name: _Dbg_last_bash_command
                        )
                      op: assign_op.Equal
                      rhs: {(DQ <'**unsaved _bashdb command**'>)}
                    )
                  ]
                  redirects: []
                )
              ]
              fi_kw: <Id.KW_Fi fi>
              redirects: []
            )
            (command.If
              if_kw: <Id.KW_If if>
              arms: [
                (IfArm
                  keyword: <Id.KW_If if>
                  cond: 
                    (condition.Shell
                      commands: [
                        (command.Sentence
                          child: 
                            (command.DParen
                              left: <Id.Op_DLeftParen _>
                              child: ($ Id.Lit_ArithVarLike _Dbg_restore_debug_trap)
                              right: <Id.Op_DRightParen _>
                              redirects: []
                            )
                          terminator: <Id.Op_Semi _>
                        )
                      ]
                    )
                  then_kw: <Id.KW_Then then>
                  action: [
                    (command.Simple
                      blame_tok: <trap>
                      more_env: []
                      words: [
                        {<trap>}
                        {(SQ <'_Dbg_debug_trap_handler 0 "$BASH_COMMAND" "$@"'>)}
                        {<DEBUG>}
                      ]
                      redirects: []
                      do_fork: T
                    )
                  ]
                  spids: [616 627]
                )
              ]
              else_kw: <Id.KW_Else else>
              else_action: [
                (command.Simple
                  blame_tok: <trap>
                  more_env: []
                  words: [{<trap>} {<->} {<DEBUG>}]
                  redirects: []
                  do_fork: T
                )
              ]
              fi_kw: <Id.KW_Fi fi>
              redirects: []
            )
            (command.Simple
              blame_tok: <_Dbg_restore_user_vars>
              more_env: []
              words: [{<_Dbg_restore_user_vars>}]
              redirects: []
              do_fork: T
            )
          ]
          redirects: []
          right: <Id.Lit_RBrace '}'>
        )
    )
    (command.ShFunction
      name_tok: <_Dbg_save_state>
      name: _Dbg_save_state
      body: 
        (BraceGroup
          left: <Id.Lit_LBrace '{'>
          children: [
            (command.ShAssignment
              left: <Id.Lit_VarLike '_Dbg_statefile='>
              pairs: [
                (AssignPair
                  left: <Id.Lit_VarLike '_Dbg_statefile='>
                  lhs: (sh_lhs_expr.Name left:<Id.Lit_VarLike '_Dbg_statefile='> name:_Dbg_statefile)
                  op: assign_op.Equal
                  rhs: 
                    {
                      (CommandSub
                        left_token: <Id.Left_DollarParen '$('>
                        child: 
                          (command.Simple
                            blame_tok: <_Dbg_tempname>
                            more_env: []
                            words: [{<_Dbg_tempname>} {<statefile>}]
                            redirects: []
                            do_fork: T
                          )
                        right: <Id.Eof_RParen _>
                      )
                    }
                )
              ]
              redirects: []
            )
            (command.Simple
              blame_tok: <echo>
              more_env: []
              words: [{<echo>} {(SQ )}]
              redirects: [
                (Redir
                  op: <Id.Redir_Great '>'>
                  loc: (redir_loc.Fd fd:1)
                  arg: {($ Id.VSub_DollarName _Dbg_statefile)}
                )
              ]
              do_fork: T
            )
            (command.Simple
              blame_tok: <_Dbg_save_breakpoints>
              more_env: []
              words: [{<_Dbg_save_breakpoints>}]
              redirects: []
              do_fork: T
            )
            (command.Simple
              blame_tok: <_Dbg_save_actions>
              more_env: []
              words: [{<_Dbg_save_actions>}]
              redirects: []
              do_fork: T
            )
            (command.Simple
              blame_tok: <_Dbg_save_watchpoints>
              more_env: []
              words: [{<_Dbg_save_watchpoints>}]
              redirects: []
              do_fork: T
            )
            (command.Simple
              blame_tok: <_Dbg_save_display>
              more_env: []
              words: [{<_Dbg_save_display>}]
              redirects: []
              do_fork: T
            )
            (command.Simple
              blame_tok: <_Dbg_save_Dbg_set>
              more_env: []
              words: [{<_Dbg_save_Dbg_set>}]
              redirects: []
              do_fork: T
            )
            (command.Simple
              blame_tok: <echo>
              more_env: []
              words: [{<echo>} {(DQ <'unset DBG_RESTART_FILE'>)}]
              redirects: [
                (Redir
                  op: <Id.Redir_DGreat '>>'>
                  loc: (redir_loc.Fd fd:1)
                  arg: {($ Id.VSub_DollarName _Dbg_statefile)}
                )
              ]
              do_fork: T
            )
            (command.Simple
              blame_tok: <echo>
              more_env: []
              words: [{<echo>} {(DQ <'rm '> ($ Id.VSub_DollarName _Dbg_statefile))}]
              redirects: [
                (Redir
                  op: <Id.Redir_DGreat '>>'>
                  loc: (redir_loc.Fd fd:1)
                  arg: {($ Id.VSub_DollarName _Dbg_statefile)}
                )
              ]
              do_fork: T
            )
            (command.Simple
              blame_tok: <export>
              more_env: []
              words: [
                {<export>}
                {<Id.Lit_VarLike 'DBG_RESTART_FILE='> (DQ ($ Id.VSub_DollarName _Dbg_statefile))}
              ]
              redirects: []
              do_fork: T
            )
            (command.Simple
              blame_tok: <_Dbg_write_journal>
              more_env: []
              words: [
                {<_Dbg_write_journal>}
                {
                  (DQ <'export DBG_RESTART_FILE='> 
                    (word_part.EscapedLiteral
                      token: <Id.Lit_EscapedChar '\\"'>
                      ch: '"'
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                    (word_part.EscapedLiteral
                      token: <Id.Lit_EscapedChar '\\"'>
                      ch: '"'
                    )
                  )
                }
              ]
              redirects: []
              do_fork: T
            )
          ]
          redirects: []
          right: <Id.Lit_RBrace '}'>
        )
    )
    (command.ShFunction
      name_tok: <_Dbg_save_Dbg_set>
      name: _Dbg_save_Dbg_set
      body: 
        (BraceGroup
          left: <Id.Lit_LBrace '{'>
          children: [
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              blame_tok: <declare>
              more_env: []
              words: [{<declare>} {<-p>} {<_Dbg_set_basename>}]
              redirects: [
                (Redir
                  op: <Id.Redir_DGreat '>>'>
                  loc: (redir_loc.Fd fd:1)
                  arg: {($ Id.VSub_DollarName _Dbg_statefile)}
                )
              ]
              do_fork: T
            )
            (command.Simple
              blame_tok: <declare>
              more_env: []
              words: [{<declare>} {<-p>} {<_Dbg_set_debug>}]
              redirects: [
                (Redir
                  op: <Id.Redir_DGreat '>>'>
                  loc: (redir_loc.Fd fd:1)
                  arg: {($ Id.VSub_DollarName _Dbg_statefile)}
                )
              ]
              do_fork: T
            )
            (command.Simple
              blame_tok: <declare>
              more_env: []
              words: [{<declare>} {<-p>} {<_Dbg_edit>}]
              redirects: [
                (Redir
                  op: <Id.Redir_DGreat '>>'>
                  loc: (redir_loc.Fd fd:1)
                  arg: {($ Id.VSub_DollarName _Dbg_statefile)}
                )
              ]
              do_fork: T
            )
            (command.Simple
              blame_tok: <declare>
              more_env: []
              words: [{<declare>} {<-p>} {<_Dbg_set_listsize>}]
              redirects: [
                (Redir
                  op: <Id.Redir_DGreat '>>'>
                  loc: (redir_loc.Fd fd:1)
                  arg: {($ Id.VSub_DollarName _Dbg_statefile)}
                )
              ]
              do_fork: T
            )
            (command.Simple
              blame_tok: <declare>
              more_env: []
              words: [{<declare>} {<-p>} {<_Dbg_prompt_str>}]
              redirects: [
                (Redir
                  op: <Id.Redir_DGreat '>>'>
                  loc: (redir_loc.Fd fd:1)
                  arg: {($ Id.VSub_DollarName _Dbg_statefile)}
                )
              ]
              do_fork: T
            )
            (command.Simple
              blame_tok: <declare>
              more_env: []
              words: [{<declare>} {<-p>} {<_Dbg_set_show_command>}]
              redirects: [
                (Redir
                  op: <Id.Redir_DGreat '>>'>
                  loc: (redir_loc.Fd fd:1)
                  arg: {($ Id.VSub_DollarName _Dbg_statefile)}
                )
              ]
              do_fork: T
            )
          ]
          redirects: []
          right: <Id.Lit_RBrace '}'>
        )
    )
    (command.ShFunction
      name_tok: <_Dbg_restore_state>
      name: _Dbg_restore_state
      body: 
        (BraceGroup
          left: <Id.Lit_LBrace '{'>
          children: [
            (command.Simple
              blame_tok: <typeset>
              more_env: []
              words: [{<typeset>} {<Id.Lit_VarLike 'statefile='> ($ Id.VSub_Number 1)}]
              redirects: []
              do_fork: T
            )
            (command.Simple
              blame_tok: <.>
              more_env: []
              words: [{<.>} {($ Id.VSub_Number 1)}]
              redirects: []
              do_fork: T
            )
          ]
          redirects: []
          right: <Id.Lit_RBrace '}'>
        )
    )
    (command.ShFunction
      name_tok: <_Dbg_restore_from_nested_shell>
      name: _Dbg_restore_from_nested_shell
      body: 
        (BraceGroup
          left: <Id.Lit_LBrace '{'>
          children: [
            (command.Simple
              blame_tok: <rm>
              more_env: []
              words: [{<rm>} {<-f>} {($ Id.VSub_DollarName _Dbg_shell_temp_profile)}]
              redirects: [
                (Redir op:<Id.Redir_GreatAnd '2>&'> loc:(redir_loc.Fd fd:2) arg:{<1>})
                (Redir
                  op: <Id.Redir_Great '>'>
                  loc: (redir_loc.Fd fd:1)
                  arg: {<'/dev/null'>}
                )
              ]
              do_fork: T
            )
            (command.If
              if_kw: <Id.KW_If if>
              arms: [
                (IfArm
                  keyword: <Id.KW_If if>
                  cond: 
                    (condition.Shell
                      commands: [
                        (command.Sentence
                          child: 
                            (command.DBracket
                              left: <Id.KW_DLeftBracket '[['>
                              expr: 
                                (bool_expr.Unary
                                  op_id: Id.BoolUnary_r
                                  child: {($ Id.VSub_DollarName _Dbg_restore_info)}
                                )
                              right: <Id.Lit_DRightBracket ']]'>
                              redirects: []
                            )
                          terminator: <Id.Op_Semi _>
                        )
                      ]
                    )
                  then_kw: <Id.KW_Then then>
                  action: [
                    (command.Simple
                      blame_tok: <.>
                      more_env: []
                      words: [{<.>} {($ Id.VSub_DollarName _Dbg_restore_info)}]
                      redirects: []
                      do_fork: T
                    )
                    (command.Simple
                      blame_tok: <rm>
                      more_env: []
                      words: [{<rm>} {($ Id.VSub_DollarName _Dbg_restore_info)}]
                      redirects: []
                      do_fork: T
                    )
                  ]
                  spids: [862 874]
                )
              ]
              else_action: []
              fi_kw: <Id.KW_Fi fi>
              redirects: []
            )
          ]
          redirects: []
          right: <Id.Lit_RBrace '}'>
        )
    )
  ]
)