annotate libinterp/parse-tree/pt-id.cc @ 20940:48b2ad5ee801

maint: Rename oct-obj.[cc|h] to ovl.[cc|h] for clarity. * libinterp/corefcn/oct-obj.h: Replaced. Contains a #warning issued if used in compilation and includes "ovl.h" instead. Original file renamed to libinterp/octave-value/ovl.h * libinterp/corefcn/oct-obj.cc: Renamed to libinterp/octave-value/ovl.cc. * oct-obj.cc (ovl ()): Added new function to return empty octave_value_list. * libinterp/corefcn/module.mk: Remove oct-obj.cc from build system. * libinterp/octave-value/module.mk: Add ovl.h and ovl.cc to build system. * mk-opts.pl, annotation-dialog.h, Cell.cc, __contourc__.cc, __dsearchn__.cc, __lin_interpn__.cc, __pchip_deriv__.cc, __qp__.cc, balance.cc, besselj.cc, betainc.cc, colloc.cc, conv2.cc, daspk.cc, dasrt.cc, dassl.cc, data.cc, debug.cc, defaults.cc, defun.cc, det.cc, dirfns.cc, dlmread.cc, eig.cc, error.cc, fft.cc, fft2.cc, fftn.cc, file-io.cc, filter.cc, find.cc, gammainc.cc, gcd.cc, getgrent.cc, getpwent.cc, getrusage.cc, givens.cc, graphics.cc, gripes.cc, help.cc, hess.cc, hex2num.cc, hook-fcn.h, input.cc, input.h, inv.cc, kron.cc, load-save.cc, lookup.cc, ls-hdf5.cc, ls-mat-ascii.cc, ls-mat4.cc, ls-mat5.cc, ls-oct-binary.cc, ls-oct-text.cc, lsode.cc, lu.cc, luinc.cc, max.cc, mex.cc, oct-hist.cc, oct-lvalue.cc, oct-lvalue.h, oct-map.h, oct-stream.cc, oct.h, ordschur.cc, pager.cc, pinv.cc, pr-output.cc, quad.cc, quadcc.cc, qz.cc, rand.cc, rcond.cc, regexp.cc, schur.cc, sparse-xpow.cc, strfns.cc, sub2ind.cc, svd.cc, sylvester.cc, symtab.h, syscalls.cc, sysdep.cc, time.cc, toplev.cc, tril.cc, tsearch.cc, typecast.cc, urlwrite.cc, utils.cc, variables.cc, xpow.cc, __delaunayn__.cc, __glpk__.cc, __voronoi__.cc, audiodevinfo.cc, audioread.cc, chol.cc, convhulln.cc, dmperm.cc, qr.cc, symbfact.cc, mkbuiltins, ov-base-diag.h, ov-base-int.cc, ov-base-mat.cc, ov-base-mat.h, ov-base-scalar.cc, ov-base-sparse.cc, ov-base-sparse.h, ov-base.cc, ov-bool-mat.cc, ov-bool.cc, ov-builtin.cc, ov-cell.cc, ov-colon.cc, ov-complex.cc, ov-cs-list.h, ov-cx-mat.cc, ov-dld-fcn.cc, ov-fcn.cc, ov-fcn.h, ov-float.cc, ov-flt-complex.cc, ov-flt-cx-mat.cc, ov-flt-re-mat.cc, ov-int16.cc, ov-int32.cc, ov-int64.cc, ov-int8.cc, ov-java.h, ov-mex-fcn.cc, ov-perm.h, ov-range.cc, ov-re-mat.cc, ov-scalar.cc, ov-str-mat.cc, ov-uint16.cc, ov-uint32.cc, ov-uint64.cc, ov-uint8.cc, ov-usr-fcn.cc, ov-usr-fcn.h, ov.cc, octave.cc, op-b-b.cc, op-b-bm.cc, op-b-sbm.cc, op-bm-b.cc, op-bm-bm.cc, op-bm-sbm.cc, op-cdm-cdm.cc, op-cell.cc, op-chm.cc, op-class.cc, op-cm-cm.cc, op-cm-cs.cc, op-cm-m.cc, op-cm-s.cc, op-cm-scm.cc, op-cm-sm.cc, op-cs-cm.cc, op-cs-cs.cc, op-cs-m.cc, op-cs-s.cc, op-cs-scm.cc, op-cs-sm.cc, op-dm-dm.cc, op-dm-scm.cc, op-dm-sm.cc, op-double-conv.cc, op-fcdm-fcdm.cc, op-fcdm-fdm.cc, op-fcm-fcm.cc, op-fcm-fcs.cc, op-fcm-fm.cc, op-fcm-fs.cc, op-fcn.cc, op-fcs-fcm.cc, op-fcs-fcs.cc, op-fcs-fm.cc, op-fcs-fs.cc, op-fdm-fdm.cc, op-float-conv.cc, op-fm-fcm.cc, op-fm-fcs.cc, op-fm-fm.cc, op-fm-fs.cc, op-fs-fcm.cc, op-fs-fcs.cc, op-fs-fm.cc, op-fs-fs.cc, op-i16-i16.cc, op-i32-i32.cc, op-i64-i64.cc, op-i8-i8.cc, op-int-concat.cc, op-int-conv.cc, op-m-cm.cc, op-m-cs.cc, op-m-m.cc, op-m-s.cc, op-m-scm.cc, op-m-sm.cc, op-pm-pm.cc, op-pm-scm.cc, op-pm-sm.cc, op-range.cc, op-s-cm.cc, op-s-cs.cc, op-s-m.cc, op-s-s.cc, op-s-scm.cc, op-s-sm.cc, op-sbm-b.cc, op-sbm-bm.cc, op-sbm-sbm.cc, op-scm-cm.cc, op-scm-cs.cc, op-scm-m.cc, op-scm-s.cc, op-scm-scm.cc, op-scm-sm.cc, op-sm-cm.cc, op-sm-cs.cc, op-sm-m.cc, op-sm-s.cc, op-sm-scm.cc, op-sm-sm.cc, op-str-m.cc, op-str-s.cc, op-str-str.cc, op-struct.cc, op-ui16-ui16.cc, op-ui32-ui32.cc, op-ui64-ui64.cc, op-ui8-ui8.cc, parse.h, pt-arg-list.cc, pt-assign.cc, pt-binop.cc, pt-cbinop.cc, pt-cell.cc, pt-colon.cc, pt-const.cc, pt-eval.h, pt-fcn-handle.cc, pt-funcall.h, pt-id.cc, pt-idx.cc, pt-jump.cc, pt-mat.cc, pt-select.cc, pt-unop.cc, token.cc, Array-sym.cc: replace '#include "oct-obj.h"' with '#include "ovl.h"'.
author Rik <rik@octave.org>
date Fri, 18 Dec 2015 16:04:56 -0800
parents f90c8372b7ba
children fcac5dbbf9ed
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rev   line source
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1 /*
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2
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3 Copyright (C) 1996-2015 John W. Eaton
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4
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5 This file is part of Octave.
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6
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7 Octave is free software; you can redistribute it and/or modify it
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8 under the terms of the GNU General Public License as published by the
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9 Free Software Foundation; either version 3 of the License, or (at your
93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe]
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10 option) any later version.
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11
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12 Octave is distributed in the hope that it will be useful, but WITHOUT
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13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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15 for more details.
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16
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17 You should have received a copy of the GNU General Public License
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18 along with Octave; see the file COPYING. If not, see
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19 <http://www.gnu.org/licenses/>.
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20
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21 */
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22
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23 #ifdef HAVE_CONFIG_H
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24 #include <config.h>
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25 #endif
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26
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27 #include "error.h"
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28 #include "ovl.h"
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29 #include "oct-lvalue.h"
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30 #include "pager.h"
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31 #include "pt-bp.h"
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32 #include "pt-const.h"
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33 #include "pt-eval.h"
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34 #include "pt-id.h"
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35 #include "pt-walk.h"
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36 #include "symtab.h"
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37 #include "utils.h"
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38 #include "variables.h"
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39
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40 // Symbols from the symbol table.
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41
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42 void
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43 tree_identifier::eval_undefined_error (void)
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44 {
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45 int l = line ();
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46 int c = column ();
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47
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48 maybe_missing_function_hook (name ());
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49
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50 if (l == -1 && c == -1)
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51 error_with_id ("Octave:undefined-function",
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52 "'%s' undefined", name ().c_str ());
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53 else
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54 error_with_id ("Octave:undefined-function",
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55 "'%s' undefined near line %d column %d",
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56 name ().c_str (), l, c);
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57 }
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58
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59 octave_value_list
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60 tree_identifier::rvalue (int nargout,
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61 const std::list<octave_lvalue> *lvalue_list)
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62 {
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63 octave_value_list retval;
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64
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65 octave_value val = sym->find ();
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66
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67 if (val.is_defined ())
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68 {
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69 // GAGME -- this would be cleaner if we required
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70 // parens to indicate function calls.
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71 //
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72 // If this identifier refers to a function, we need to know
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73 // whether it is indexed so that we can do the same thing
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74 // for 'f' and 'f()'. If the index is present and the function
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75 // object declares it can handle it, return the function object
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76 // and let tree_index_expression::rvalue handle indexing.
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77 // Otherwise, arrange to call the function here, so that we don't
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78 // return the function definition as a value.
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79
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80 octave_function *fcn = 0;
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81
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82 if (val.is_function ())
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83 fcn = val.function_value (true);
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84
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85 if (fcn && ! (is_postfix_indexed ()
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86 && fcn->is_postfix_index_handled (postfix_index ())))
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87 {
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88 octave_value_list tmp_args;
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89
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90 retval = (lvalue_list
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91 ? val.do_multi_index_op (nargout, tmp_args, lvalue_list)
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92 : val.do_multi_index_op (nargout, tmp_args));
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93 }
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94 else
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95 {
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96 if (print_result () && nargout == 0
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97 && tree_evaluator::statement_printing_enabled ())
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98 val.print_with_name (octave_stdout, name ());
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99
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100 retval = val;
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101 }
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102 }
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103 else if (sym->is_added_static ())
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104 static_workspace_error ();
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105 else
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106 eval_undefined_error ();
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107
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108 return retval;
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109 }
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110
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111 octave_value
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112 tree_identifier::rvalue1 (int nargout)
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113 {
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114 octave_value retval;
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115
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116 octave_value_list tmp = rvalue (nargout);
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117
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118 if (! tmp.empty ())
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119 retval = tmp(0);
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120
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121 return retval;
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122 }
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123
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124 octave_lvalue
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125 tree_identifier::lvalue (void)
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126 {
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127 if (sym->is_added_static ())
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128 static_workspace_error ();
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129
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130 return octave_lvalue (sym);
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131 }
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132
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133 tree_identifier *
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134 tree_identifier::dup (symbol_table::scope_id sc,
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135 symbol_table::context_id) const
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136 {
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137 // The new tree_identifier object contains a symbol_record
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138 // entry from the duplicated scope.
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139
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140 // FIXME: is this the best way?
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141 symbol_table::symbol_record new_sym
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142 = symbol_table::find_symbol (name (), sc);
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143
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144 tree_identifier *new_id
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145 = new tree_identifier (new_sym, line (), column ());
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146
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147 new_id->copy_base (*this);
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148
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149 return new_id;
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150 }
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151
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152 void
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153 tree_identifier::accept (tree_walker& tw)
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154 {
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155 tw.visit_identifier (*this);
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156 }