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      more_env: []
      words: [{<typeset>} {<-a>} {<_Dbg_dir>}]
      redirects: []
      do_fork: T
    )
    (command.ShAssignment
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      pairs: [
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          lhs: (sh_lhs_expr.Name left:<Id.Lit_VarLike '_Dbg_dir='> name:_Dbg_dir)
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          rhs: 
            {
              (ShArrayLiteral
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                words: [{(SQ <'\\$cdir'>)} {(SQ <'\\$cwd'>)}]
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            }
        )
      ]
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    )
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          redirects: []
        )
        (command.Simple
          blame_tok: <typeset>
          more_env: []
          words: [
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            {<Id.Lit_VarLike '_Dbg_cdir='> 
              (BracedVarSub
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                var_name: _Dbg_source_file
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                right: <Id.Right_DollarBrace '}'>
              )
            }
          ]
          redirects: []
          do_fork: T
        )
      ]
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    (command.AndOr
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        )
        (command.Simple
          blame_tok: <typeset>
          more_env: []
          words: [
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            {<Id.Lit_VarLike '_Dbg_cdir='> 
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                child: 
                  (command.Simple
                    blame_tok: <pwd>
                    more_env: []
                    words: [{<pwd>}]
                    redirects: []
                    do_fork: T
                  )
                right: <Id.Eof_RParen _>
              )
            }
          ]
          redirects: []
          do_fork: T
        )
      ]
      ops: [<Id.Op_DAmp _>]
    )
    (command.ShFunction
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      name: _Dbg_adjust_filename
      body: 
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          left: <Id.Lit_LBrace '{'>
          children: [
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              blame_tok: <typeset>
              more_env: []
              words: [{<typeset>} {<-r>} {<Id.Lit_VarLike 'filename='> (DQ ($ Id.VSub_Number 1))}]
              redirects: []
              do_fork: T
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            (command.If
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                  cond: 
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                              child: 
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                                  op_id: Id.Arith_DEqual
                                  left: ($ Id.Lit_ArithVarLike _Dbg_set_annotate)
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                              redirects: []
                            )
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                        )
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                    )
                  then_kw: <Id.KW_Then then>
                  action: [
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                      blame_tok: <echo>
                      more_env: []
                      words: [
                        {<echo>}
                        {
                          (CommandSub
                            left_token: <Id.Left_DollarParen '$('>
                            child: 
                              (command.Simple
                                blame_tok: <_Dbg_resolve_expand_filename>
                                more_env: []
                                words: [
                                  {<_Dbg_resolve_expand_filename>}
                                  {($ Id.VSub_DollarName filename)}
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                                redirects: []
                                do_fork: T
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                            right: <Id.Eof_RParen _>
                          )
                        }
                      ]
                      redirects: []
                      do_fork: T
                    )
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                  spids: [149 164]
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                  keyword: <Id.KW_Elif elif>
                  cond: 
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                          child: 
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                              left: <Id.Op_DLeftParen _>
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                              redirects: []
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                  then_kw: <Id.KW_Then then>
                  action: [
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                      blame_tok: <echo>
                      more_env: []
                      words: [
                        {<echo>}
                        {
                          (BracedVarSub
                            left: <Id.Left_DollarBrace '${'>
                            token: <Id.VSub_Name filename>
                            var_name: filename
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                        }
                      ]
                      redirects: []
                      do_fork: T
                    )
                  ]
                  spids: [176 185]
                )
              ]
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                  more_env: []
                  words: [{<echo>} {($ Id.VSub_DollarName filename)}]
                  redirects: []
                  do_fork: T
                )
              ]
              fi_kw: <Id.KW_Fi fi>
              redirects: []
            )
          ]
          redirects: []
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        )
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    (command.ShFunction
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      name_tok: <_Dbg_file_canonic>
      name: _Dbg_file_canonic
      body: 
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          children: [
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              if_kw: <Id.KW_If if>
              arms: [
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                  keyword: <Id.KW_If if>
                  cond: 
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                              left: <Id.Op_DLeftParen _>
                              child: 
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                                  op_id: Id.Arith_NEqual
                                  left: {($ Id.VSub_Pound '#')}
                                  right: {<Id.Lit_Digits 1>}
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                              right: <Id.Op_DRightParen _>
                              redirects: []
                            )
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                        )
                      ]
                    )
                  then_kw: <Id.KW_Then then>
                  action: [
                    (command.Simple
                      blame_tok: <echo>
                      more_env: []
                      words: [{<echo>} {(SQ <'??'>)}]
                      redirects: []
                      do_fork: T
                    )
                    (command.ControlFlow
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                      arg_word: {<1>}
                    )
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                  spids: [224 239]
                )
              ]
              else_action: []
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              redirects: []
            )
            (command.Simple
              blame_tok: <typeset>
              more_env: []
              words: [{<typeset>} {<Id.Lit_VarLike 'filename='> (DQ ($ Id.VSub_Number 1))}]
              redirects: []
              do_fork: T
            )
            (command.AndOr
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                  left: <Id.Op_DLeftParen _>
                  child: ($ Id.Lit_ArithVarLike _Dbg_set_basename)
                  right: <Id.Op_DRightParen _>
                  redirects: []
                )
                (command.ShAssignment
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                  pairs: [
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                      lhs: (sh_lhs_expr.Name left:<Id.Lit_VarLike 'filename='> name:filename)
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                      rhs: 
                        {
                          (BracedVarSub
                            left: <Id.Left_DollarBrace '${'>
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                            var_name: filename
                            suffix_op: 
                              (suffix_op.Unary
                                op: <Id.VOp1_DPound '##'>
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                          )
                        }
                    )
                  ]
                  redirects: []
                )
              ]
              ops: [<Id.Op_DAmp _>]
            )
            (command.Simple
              blame_tok: <echo>
              more_env: []
              words: [{<echo>} {($ Id.VSub_DollarName filename)}]
              redirects: []
              do_fork: T
            )
            (command.ControlFlow keyword:<Id.ControlFlow_Return return> arg_word:{<0>})
          ]
          redirects: []
          right: <Id.Lit_RBrace '}'>
        )
    )
    (command.ShFunction
      name_tok: <_Dbg_tilde_expand_filename>
      name: _Dbg_tilde_expand_filename
      body: 
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          left: <Id.Lit_LBrace '{'>
          children: [
            (command.Simple
              blame_tok: <typeset>
              more_env: []
              words: [
                {<typeset>}
                {<Id.Lit_VarLike 'cmd='> 
                  (DQ <'filename='> (word_part.EscapedLiteral token:<Id.Lit_EscapedChar '\\$'> ch:'$') 
                    <'(builtin echo '> ($ Id.VSub_Number 1) <')'>
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                }
              ]
              redirects: []
              do_fork: T
            )
            (command.Simple
              blame_tok: <eval>
              more_env: []
              words: [{<eval>} {($ Id.VSub_DollarName cmd)}]
              redirects: []
              do_fork: T
            )
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              redirects: []
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          ]
          redirects: []
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        )
    )
    (command.ShFunction
      keyword: <Id.KW_Function function>
      name_tok: <_Dbg_resolve_expand_filename>
      name: _Dbg_resolve_expand_filename
      body: 
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          left: <Id.Lit_LBrace '{'>
          children: [
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              if_kw: <Id.KW_If if>
              arms: [
                (IfArm
                  keyword: <Id.KW_If if>
                  cond: 
                    (condition.Shell
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                              left: <Id.Op_DLeftParen _>
                              child: 
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                              redirects: []
                            )
                          terminator: <Id.Op_Semi _>
                        )
                      ]
                    )
                  then_kw: <Id.KW_Then then>
                  action: [
                    (command.Simple
                      blame_tok: <_Dbg_errmsg>
                      more_env: []
                      words: [
                        {<_Dbg_errmsg>}
                        {
                          (DQ 
                            <
'Internal debug error _Dbg_resolve_expand_filename(): null file to find'
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                        }
                      ]
                      redirects: []
                      do_fork: T
                    )
                    (command.Simple
                      blame_tok: <echo>
                      more_env: []
                      words: [{<echo>} {(SQ )}]
                      redirects: []
                      do_fork: T
                    )
                    (command.ControlFlow
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                      arg_word: {<1>}
                    )
                  ]
                  spids: [365 380]
                )
              ]
              else_action: []
              fi_kw: <Id.KW_Fi fi>
              redirects: []
            )
            (command.Simple
              blame_tok: <typeset>
              more_env: []
              words: [{<typeset>} {<Id.Lit_VarLike 'find_file='> (DQ ($ Id.VSub_Number 1))}]
              redirects: []
              do_fork: T
            )
            (command.Simple
              blame_tok: <typeset>
              more_env: []
              words: [{<typeset>} {<found_file>}]
              redirects: []
              do_fork: T
            )
            (command.ShAssignment
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              pairs: [
                (AssignPair
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                  lhs: (sh_lhs_expr.Name left:<Id.Lit_VarLike 'found_file='> name:found_file)
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                  rhs: 
                    {
                      (DQ 
                        (BracedVarSub
                          left: <Id.Left_DollarBrace '${'>
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                          var_name: _Dbg_file2canonic
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                      )
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                )
              ]
              redirects: []
            )
            (command.If
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              arms: [
                (IfArm
                  keyword: <Id.KW_If if>
                  cond: 
                    (condition.Shell
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                          terminator: <Id.Op_Semi _>
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                    )
                  then_kw: <Id.KW_Then then>
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                      blame_tok: <echo>
                      more_env: []
                      words: [{<echo>} {(DQ ($ Id.VSub_DollarName found_file))}]
                      redirects: []
                      do_fork: T
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                )
              ]
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              redirects: []
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            (command.If
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              arms: [
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                  keyword: <Id.KW_If if>
                  cond: 
                    (condition.Shell
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                                      (BracedVarSub
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                                            length: {<Id.Lit_Digits 1>}
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                                        right: <Id.Arith_RBrace _>
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                                    }
                                  right: {(SQ <'/'>)}
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                              redirects: []
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                  then_kw: <Id.KW_Then then>
                  action: [
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                      pairs: [
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                          lhs: 
                            (sh_lhs_expr.Name
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                          op: assign_op.Equal
                          rhs: 
                            {
                              (CommandSub
                                left_token: <Id.Left_DollarParen '$('>
                                child: 
                                  (command.Simple
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                                    more_env: []
                                    words: [
                                      {<_Dbg_expand_filename>}
                                      {(DQ ($ Id.VSub_DollarName find_file))}
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                                    redirects: []
                                    do_fork: T
                                  )
                                right: <Id.Eof_RParen _>
                              )
                            }
                        )
                      ]
                      redirects: []
                    )
                    (command.Simple
                      blame_tok: <echo>
                      more_env: []
                      words: [{<echo>} {(DQ ($ Id.VSub_DollarName full_find_file))}]
                      redirects: []
                      do_fork: T
                    )
                    (command.ControlFlow
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                      arg_word: {<0>}
                    )
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                  spids: [470 492]
                )
                (IfArm
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                                            length: {<Id.Lit_Digits 1>}
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                                        right: <Id.Arith_RBrace _>
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                                  right: {(SQ <.>)}
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                              redirects: []
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                          op: assign_op.Equal
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                            {
                              (CommandSub
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                                    more_env: []
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                                        (DQ (${ Id.VSub_Name _Dbg_init_cwd) <'/'> 
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                                    redirects: []
                                    do_fork: T
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                      redirects: []
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                          cond: 
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                                  op: assign_op.Equal
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                                    {
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                                            words: [
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                                            redirects: []
                                            do_fork: T
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                                        right: <Id.Eof_RParen _>
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                                )
                              ]
                              redirects: []
                            )
                          ]
                          spids: [564 589]
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                      ]
                      else_action: []
                      fi_kw: <Id.KW_Fi fi>
                      redirects: []
                    )
                    (command.Simple
                      blame_tok: <echo>
                      more_env: []
                      words: [{<echo>} {(DQ ($ Id.VSub_DollarName full_find_file))}]
                      redirects: []
                      do_fork: T
                    )
                    (command.ControlFlow
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                  spids: [521 543]
                )
              ]
              else_kw: <Id.KW_Else else>
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                  blame_tok: <typeset>
                  more_env: []
                  words: [
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                    {<-i>}
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                      (BracedVarSub
                        left: <Id.Left_DollarBrace '${'>
                        token: <Id.VSub_Name _Dbg_dir>
                        var_name: _Dbg_dir
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                  redirects: []
                  do_fork: T
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                (command.Simple
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                  words: [{<typeset>} {<-i>} {<i>}]
                  redirects: []
                  do_fork: T
                )
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                      left: ($ Id.Lit_ArithVarLike i)
                      right: {<Id.Lit_Digits 0>}
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            (command.Simple
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          redirects: []
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)