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annotate libinterp/parse-tree/pt-misc.cc @ 20587:f90c8372b7ba

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eliminate many more simple uses of error_state * Cell.cc, __ichol__.cc, __ilu__.cc, balance.cc, bsxfun.cc, colloc.cc, det.cc, dlmread.cc, dynamic-ld.cc, eig.cc, fft.cc, fft2.cc, fftn.cc, gcd.cc, getgrent.cc, getpwent.cc, givens.cc, hess.cc, input.cc, levenshtein.cc, load-path.cc, lookup.cc, ls-mat-ascii.cc, ls-mat4.cc, lsode.cc, lu.cc, max.cc, md5sum.cc, mex.cc, pager.cc, pinv.cc, pr-output.cc, qz.cc, schur.cc, sparse.cc, sqrtm.cc, str2double.cc, strfns.cc, sub2ind.cc, sysdep.cc, time.cc, toplev.cc, tril.cc, tsearch.cc, typecast.cc, __init_gnuplot__.cc, __magick_read__.cc, __osmesa_print__.cc, amd.cc, audiodevinfo.cc, dmperm.cc, fftw.cc, symrcm.cc, ov-base-diag.cc, ov-base-sparse.cc, ov-base.cc, ov-bool-sparse.cc, ov-builtin.cc, ov-complex.cc, ov-cx-diag.cc, ov-cx-mat.cc, ov-cx-sparse.cc, ov-fcn-handle.cc, ov-fcn-inline.cc, ov-float.cc, ov-flt-complex.cc, ov-flt-cx-diag.cc, ov-flt-cx-mat.cc, ov-flt-re-diag.cc, ov-flt-re-mat.cc, ov-lazy-idx.cc, ov-mex-fcn.cc, ov-perm.cc, ov-range.cc, ov-re-diag.cc, ov-re-mat.cc, ov-re-sparse.cc, ov-scalar.cc, ov-str-mat.cc, op-bm-b.cc, op-bm-bm.cc, op-sbm-b.cc, op-sbm-bm.cc, op-str-m.cc, op-str-s.cc, oct-parse.in.yy, pt-cbinop.cc, pt-colon.cc, pt-decl.cc, pt-exp.cc, pt-id.cc, pt-misc.cc, pt-select.cc, pt-unop.cc: Eliminate simple uses of error_state.
author John W. Eaton <jwe@octave.org>
date Mon, 05 Oct 2015 19:29:36 -0400
parents 58b02a8d0fe9
children
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1 /*
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2
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4197fc428c7d maint: Update copyright notices for 2015.
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3 Copyright (C) 1994-2015 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
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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 "Cell.h"
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28
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29 #include "defun.h"
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30 #include "error.h"
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31 #include "ov.h"
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32 #include "oct-lvalue.h"
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33 #include "pt-id.h"
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34 #include "pt-idx.h"
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35 #include "pt-misc.h"
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36 #include "pt-walk.h"
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37 #include "utils.h"
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38
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39 // Parameter lists.
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40
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41 tree_parameter_list::~tree_parameter_list (void)
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42 {
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43 while (! empty ())
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44 {
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45 iterator p = begin ();
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46 delete *p;
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47 erase (p);
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48 }
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49 }
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50
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51 void
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52 tree_parameter_list::mark_as_formal_parameters (void)
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53 {
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54 for (iterator p = begin (); p != end (); p++)
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55 {
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56 tree_decl_elt *elt = *p;
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57 elt->mark_as_formal_parameter ();
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58 }
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59 }
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60
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61 bool
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62 tree_parameter_list::validate (in_or_out type)
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63 {
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64 bool retval = true;
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65
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66 std::set<std::string> dict;
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67
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68 for (iterator p = begin (); p != end (); p++)
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69 {
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70 tree_decl_elt *elt = *p;
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71
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72 tree_identifier *id = elt->ident ();
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73
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74 if (id)
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75 {
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76 std::string name = id->name ();
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77
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78 if (id->is_black_hole ())
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79 {
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80 if (type != in)
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81 error ("invalid use of ~ in output list");
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82 }
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83 else if (dict.find (name) != dict.end ())
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84 {
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85 retval = false;
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86 error ("'%s' appears more than once in parameter list",
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87 name.c_str ());
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88 break;
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89 }
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90 else
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91 dict.insert (name);
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92 }
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93 }
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94
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95 std::string va_type = (type == in ? "varargin" : "varargout");
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96
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97 size_t len = length ();
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98
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99 if (len > 0)
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100 {
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101 tree_decl_elt *elt = back ();
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102
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103 tree_identifier *id = elt->ident ();
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104
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105 if (id && id->name () == va_type)
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106 {
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107 if (len == 1)
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108 mark_varargs_only ();
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109 else
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110 mark_varargs ();
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111
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112 iterator p = end ();
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113 --p;
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114 delete *p;
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115 erase (p);
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116 }
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117 }
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118
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119 return retval;
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120 }
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121
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122 void
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123 tree_parameter_list::initialize_undefined_elements (const std::string& warnfor,
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124 int nargout,
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125 const octave_value& val)
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126 {
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127 bool warned = false;
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128
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129 int count = 0;
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130
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131 octave_value tmp = symbol_table::varval (".ignored.");
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132 const Matrix ignored = tmp.is_defined () ? tmp.matrix_value () : Matrix ();
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133
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134 octave_idx_type k = 0;
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135
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136 for (iterator p = begin (); p != end (); p++)
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137 {
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138 if (++count > nargout)
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139 break;
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b18007283045 [project @ 2003-07-15 11:43:28 by jwe]
jwe
parents: 4465
diff changeset
140
6215
516d3071b34c [project @ 2006-12-15 03:24:12 by jwe]
jwe
parents: 5861
diff changeset
141 tree_decl_elt *elt = *p;
2948
56be458e237f [project @ 1997-05-09 13:37:35 by jwe]
jwe
parents: 2942
diff changeset
142
7336
745a8299c2b5 [project @ 2007-12-28 20:56:55 by jwe]
jwe
parents: 7017
diff changeset
143 if (! elt->is_variable ())
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10206
diff changeset
144 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10206
diff changeset
145 if (! warned)
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10206
diff changeset
146 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10206
diff changeset
147 warned = true;
5781
faafc2d98b8d [project @ 2006-05-02 19:40:19 by jwe]
jwe
parents: 5307
diff changeset
148
10832
1b2fcd122c6a allow user detect ignored outputs in m-functions
Jaroslav Hajek <highegg@gmail.com>
parents: 10315
diff changeset
149 while (k < ignored.numel ())
1b2fcd122c6a allow user detect ignored outputs in m-functions
Jaroslav Hajek <highegg@gmail.com>
parents: 10315
diff changeset
150 {
1b2fcd122c6a allow user detect ignored outputs in m-functions
Jaroslav Hajek <highegg@gmail.com>
parents: 10315
diff changeset
151 octave_idx_type l = ignored (k);
1b2fcd122c6a allow user detect ignored outputs in m-functions
Jaroslav Hajek <highegg@gmail.com>
parents: 10315
diff changeset
152 if (l == count)
1b2fcd122c6a allow user detect ignored outputs in m-functions
Jaroslav Hajek <highegg@gmail.com>
parents: 10315
diff changeset
153 {
1b2fcd122c6a allow user detect ignored outputs in m-functions
Jaroslav Hajek <highegg@gmail.com>
parents: 10315
diff changeset
154 warned = false;
1b2fcd122c6a allow user detect ignored outputs in m-functions
Jaroslav Hajek <highegg@gmail.com>
parents: 10315
diff changeset
155 break;
1b2fcd122c6a allow user detect ignored outputs in m-functions
Jaroslav Hajek <highegg@gmail.com>
parents: 10315
diff changeset
156 }
1b2fcd122c6a allow user detect ignored outputs in m-functions
Jaroslav Hajek <highegg@gmail.com>
parents: 10315
diff changeset
157 else if (l > count)
1b2fcd122c6a allow user detect ignored outputs in m-functions
Jaroslav Hajek <highegg@gmail.com>
parents: 10315
diff changeset
158 break;
1b2fcd122c6a allow user detect ignored outputs in m-functions
Jaroslav Hajek <highegg@gmail.com>
parents: 10315
diff changeset
159 else
1b2fcd122c6a allow user detect ignored outputs in m-functions
Jaroslav Hajek <highegg@gmail.com>
parents: 10315
diff changeset
160 k++;
1b2fcd122c6a allow user detect ignored outputs in m-functions
Jaroslav Hajek <highegg@gmail.com>
parents: 10315
diff changeset
161 }
1b2fcd122c6a allow user detect ignored outputs in m-functions
Jaroslav Hajek <highegg@gmail.com>
parents: 10315
diff changeset
162
1b2fcd122c6a allow user detect ignored outputs in m-functions
Jaroslav Hajek <highegg@gmail.com>
parents: 10315
diff changeset
163 if (warned)
1b2fcd122c6a allow user detect ignored outputs in m-functions
Jaroslav Hajek <highegg@gmail.com>
parents: 10315
diff changeset
164 {
1b2fcd122c6a allow user detect ignored outputs in m-functions
Jaroslav Hajek <highegg@gmail.com>
parents: 10315
diff changeset
165 warning_with_id
1b2fcd122c6a allow user detect ignored outputs in m-functions
Jaroslav Hajek <highegg@gmail.com>
parents: 10315
diff changeset
166 ("Octave:undefined-return-values",
1b2fcd122c6a allow user detect ignored outputs in m-functions
Jaroslav Hajek <highegg@gmail.com>
parents: 10315
diff changeset
167 "%s: some elements in list of return values are undefined",
1b2fcd122c6a allow user detect ignored outputs in m-functions
Jaroslav Hajek <highegg@gmail.com>
parents: 10315
diff changeset
168 warnfor.c_str ());
1b2fcd122c6a allow user detect ignored outputs in m-functions
Jaroslav Hajek <highegg@gmail.com>
parents: 10315
diff changeset
169 }
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10206
diff changeset
170 }
4466
b18007283045 [project @ 2003-07-15 11:43:28 by jwe]
jwe
parents: 4465
diff changeset
171
10958
80cf5bf4232c avoid GCC shadow variable warning
John W. Eaton <jwe@octave.org>
parents: 10832
diff changeset
172 octave_lvalue lval = elt->lvalue ();
2973
ef3379196bcf [project @ 1997-05-15 19:27:38 by jwe]
jwe
parents: 2959
diff changeset
173
10958
80cf5bf4232c avoid GCC shadow variable warning
John W. Eaton <jwe@octave.org>
parents: 10832
diff changeset
174 lval.assign (octave_value::op_asn_eq, val);
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10206
diff changeset
175 }
1093
51fd9e40a7f7 [project @ 1995-02-03 21:57:34 by jwe]
jwe
parents: 1063
diff changeset
176 }
51fd9e40a7f7 [project @ 1995-02-03 21:57:34 by jwe]
jwe
parents: 1063
diff changeset
177 }
51fd9e40a7f7 [project @ 1995-02-03 21:57:34 by jwe]
jwe
parents: 1063
diff changeset
178
51fd9e40a7f7 [project @ 1995-02-03 21:57:34 by jwe]
jwe
parents: 1063
diff changeset
179 void
2086
bfb775fb6fe8 [project @ 1996-04-25 05:55:19 by jwe]
jwe
parents: 1996
diff changeset
180 tree_parameter_list::define_from_arg_vector (const octave_value_list& args)
577
91e2164fb1b2 [project @ 1994-08-03 20:06:54 by jwe]
jwe
parents:
diff changeset
181 {
712
36ba0576bd1b [project @ 1994-09-19 14:18:15 by jwe]
jwe
parents: 672
diff changeset
182 int nargin = args.length ();
36ba0576bd1b [project @ 1994-09-19 14:18:15 by jwe]
jwe
parents: 672
diff changeset
183
36ba0576bd1b [project @ 1994-09-19 14:18:15 by jwe]
jwe
parents: 672
diff changeset
184 int expected_nargin = length ();
577
91e2164fb1b2 [project @ 1994-08-03 20:06:54 by jwe]
jwe
parents:
diff changeset
185
4219
23d06c9e1edd [project @ 2002-12-06 21:29:17 by jwe]
jwe
parents: 4212
diff changeset
186 iterator p = begin ();
577
91e2164fb1b2 [project @ 1994-08-03 20:06:54 by jwe]
jwe
parents:
diff changeset
187
712
36ba0576bd1b [project @ 1994-09-19 14:18:15 by jwe]
jwe
parents: 672
diff changeset
188 for (int i = 0; i < expected_nargin; i++)
577
91e2164fb1b2 [project @ 1994-08-03 20:06:54 by jwe]
jwe
parents:
diff changeset
189 {
6215
516d3071b34c [project @ 2006-12-15 03:24:12 by jwe]
jwe
parents: 5861
diff changeset
190 tree_decl_elt *elt = *p++;
577
91e2164fb1b2 [project @ 1994-08-03 20:06:54 by jwe]
jwe
parents:
diff changeset
191
2979
a3556d2adec9 [project @ 1997-05-15 22:35:37 by jwe]
jwe
parents: 2973
diff changeset
192 octave_lvalue ref = elt->lvalue ();
2959
5d1b71cd39f7 [project @ 1997-05-11 22:53:12 by jwe]
jwe
parents: 2956
diff changeset
193
577
91e2164fb1b2 [project @ 1994-08-03 20:06:54 by jwe]
jwe
parents:
diff changeset
194 if (i < nargin)
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10206
diff changeset
195 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10206
diff changeset
196 if (args(i).is_defined () && args(i).is_magic_colon ())
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10206
diff changeset
197 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10206
diff changeset
198 if (! elt->eval ())
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10206
diff changeset
199 {
20458
58b02a8d0fe9 Report backtrace for "no default value" error in function header (bug #45496).
Rik <rik@octave.org>
parents: 19731
diff changeset
200 error ("no default value for argument %d", i+1);
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10206
diff changeset
201 return;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10206
diff changeset
202 }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10206
diff changeset
203 }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10206
diff changeset
204 else
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10206
diff changeset
205 ref.define (args(i));
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10206
diff changeset
206 }
2891
1a30f46e1870 [project @ 1997-04-28 01:49:00 by jwe]
jwe
parents: 2878
diff changeset
207 else
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10206
diff changeset
208 elt->eval ();
577
91e2164fb1b2 [project @ 1994-08-03 20:06:54 by jwe]
jwe
parents:
diff changeset
209 }
91e2164fb1b2 [project @ 1994-08-03 20:06:54 by jwe]
jwe
parents:
diff changeset
210 }
91e2164fb1b2 [project @ 1994-08-03 20:06:54 by jwe]
jwe
parents:
diff changeset
211
3239
d54ef0aa6e82 [project @ 1999-03-27 17:40:45 by jwe]
jwe
parents: 2982
diff changeset
212 void
4219
23d06c9e1edd [project @ 2002-12-06 21:29:17 by jwe]
jwe
parents: 4212
diff changeset
213 tree_parameter_list::undefine (void)
3239
d54ef0aa6e82 [project @ 1999-03-27 17:40:45 by jwe]
jwe
parents: 2982
diff changeset
214 {
d54ef0aa6e82 [project @ 1999-03-27 17:40:45 by jwe]
jwe
parents: 2982
diff changeset
215 int len = length ();
d54ef0aa6e82 [project @ 1999-03-27 17:40:45 by jwe]
jwe
parents: 2982
diff changeset
216
4219
23d06c9e1edd [project @ 2002-12-06 21:29:17 by jwe]
jwe
parents: 4212
diff changeset
217 iterator p = begin ();
3239
d54ef0aa6e82 [project @ 1999-03-27 17:40:45 by jwe]
jwe
parents: 2982
diff changeset
218
d54ef0aa6e82 [project @ 1999-03-27 17:40:45 by jwe]
jwe
parents: 2982
diff changeset
219 for (int i = 0; i < len; i++)
d54ef0aa6e82 [project @ 1999-03-27 17:40:45 by jwe]
jwe
parents: 2982
diff changeset
220 {
6215
516d3071b34c [project @ 2006-12-15 03:24:12 by jwe]
jwe
parents: 5861
diff changeset
221 tree_decl_elt *elt = *p++;
3239
d54ef0aa6e82 [project @ 1999-03-27 17:40:45 by jwe]
jwe
parents: 2982
diff changeset
222
d54ef0aa6e82 [project @ 1999-03-27 17:40:45 by jwe]
jwe
parents: 2982
diff changeset
223 octave_lvalue ref = elt->lvalue ();
d54ef0aa6e82 [project @ 1999-03-27 17:40:45 by jwe]
jwe
parents: 2982
diff changeset
224
3538
0ff7323dab8b [project @ 2000-02-02 12:36:25 by jwe]
jwe
parents: 3239
diff changeset
225 ref.assign (octave_value::op_asn_eq, octave_value ());
3239
d54ef0aa6e82 [project @ 1999-03-27 17:40:45 by jwe]
jwe
parents: 2982
diff changeset
226 }
d54ef0aa6e82 [project @ 1999-03-27 17:40:45 by jwe]
jwe
parents: 2982
diff changeset
227 }
d54ef0aa6e82 [project @ 1999-03-27 17:40:45 by jwe]
jwe
parents: 2982
diff changeset
228
16360
11115c237231 recognize variables when parsing (bug #38576)
John W. Eaton <jwe@octave.org>
parents: 15467
diff changeset
229 std::list<std::string>
11115c237231 recognize variables when parsing (bug #38576)
John W. Eaton <jwe@octave.org>
parents: 15467
diff changeset
230 tree_parameter_list::variable_names (void) const
11115c237231 recognize variables when parsing (bug #38576)
John W. Eaton <jwe@octave.org>
parents: 15467
diff changeset
231 {
11115c237231 recognize variables when parsing (bug #38576)
John W. Eaton <jwe@octave.org>
parents: 15467
diff changeset
232 std::list<std::string> retval;
11115c237231 recognize variables when parsing (bug #38576)
John W. Eaton <jwe@octave.org>
parents: 15467
diff changeset
233
11115c237231 recognize variables when parsing (bug #38576)
John W. Eaton <jwe@octave.org>
parents: 15467
diff changeset
234 for (const_iterator p = begin (); p != end (); p++)
11115c237231 recognize variables when parsing (bug #38576)
John W. Eaton <jwe@octave.org>
parents: 15467
diff changeset
235 {
11115c237231 recognize variables when parsing (bug #38576)
John W. Eaton <jwe@octave.org>
parents: 15467
diff changeset
236 tree_decl_elt *elt = *p;
17787
175b392e91fe Use GNU style coding conventions for code in libinterp/
Rik <rik@octave.org>
parents: 17744
diff changeset
237
16360
11115c237231 recognize variables when parsing (bug #38576)
John W. Eaton <jwe@octave.org>
parents: 15467
diff changeset
238 retval.push_back (elt->name ());
11115c237231 recognize variables when parsing (bug #38576)
John W. Eaton <jwe@octave.org>
parents: 15467
diff changeset
239 }
11115c237231 recognize variables when parsing (bug #38576)
John W. Eaton <jwe@octave.org>
parents: 15467
diff changeset
240
11115c237231 recognize variables when parsing (bug #38576)
John W. Eaton <jwe@octave.org>
parents: 15467
diff changeset
241 return retval;
11115c237231 recognize variables when parsing (bug #38576)
John W. Eaton <jwe@octave.org>
parents: 15467
diff changeset
242 }
11115c237231 recognize variables when parsing (bug #38576)
John W. Eaton <jwe@octave.org>
parents: 15467
diff changeset
243
2086
bfb775fb6fe8 [project @ 1996-04-25 05:55:19 by jwe]
jwe
parents: 1996
diff changeset
244 octave_value_list
9644
080e11f1b0c1 don't return undefined output values from user functions
Jaroslav Hajek <highegg@gmail.com>
parents: 8920
diff changeset
245 tree_parameter_list::convert_to_const_vector (int nargout,
080e11f1b0c1 don't return undefined output values from user functions
Jaroslav Hajek <highegg@gmail.com>
parents: 8920
diff changeset
246 const Cell& varargout)
577
91e2164fb1b2 [project @ 1994-08-03 20:06:54 by jwe]
jwe
parents:
diff changeset
247 {
5848
415ae81d331b [project @ 2006-06-08 20:37:29 by jwe]
jwe
parents: 5781
diff changeset
248 octave_idx_type vlen = varargout.numel ();
9691
318e0cdd31bd improve OOP subsref handling
Jaroslav Hajek <highegg@gmail.com>
parents: 9644
diff changeset
249 int len = length ();
577
91e2164fb1b2 [project @ 1994-08-03 20:06:54 by jwe]
jwe
parents:
diff changeset
250
9644
080e11f1b0c1 don't return undefined output values from user functions
Jaroslav Hajek <highegg@gmail.com>
parents: 8920
diff changeset
251 // Special case. Will do a shallow copy.
9691
318e0cdd31bd improve OOP subsref handling
Jaroslav Hajek <highegg@gmail.com>
parents: 9644
diff changeset
252 if (len == 0)
9644
080e11f1b0c1 don't return undefined output values from user functions
Jaroslav Hajek <highegg@gmail.com>
parents: 8920
diff changeset
253 return varargout;
9691
318e0cdd31bd improve OOP subsref handling
Jaroslav Hajek <highegg@gmail.com>
parents: 9644
diff changeset
254 else if (nargout <= len)
318e0cdd31bd improve OOP subsref handling
Jaroslav Hajek <highegg@gmail.com>
parents: 9644
diff changeset
255 {
318e0cdd31bd improve OOP subsref handling
Jaroslav Hajek <highegg@gmail.com>
parents: 9644
diff changeset
256 octave_value_list retval (nargout);
318e0cdd31bd improve OOP subsref handling
Jaroslav Hajek <highegg@gmail.com>
parents: 9644
diff changeset
257
318e0cdd31bd improve OOP subsref handling
Jaroslav Hajek <highegg@gmail.com>
parents: 9644
diff changeset
258 int i = 0;
723
1c072f20b522 [project @ 1994-09-21 16:00:10 by jwe]
jwe
parents: 712
diff changeset
259
9691
318e0cdd31bd improve OOP subsref handling
Jaroslav Hajek <highegg@gmail.com>
parents: 9644
diff changeset
260 for (iterator p = begin (); p != end (); p++)
318e0cdd31bd improve OOP subsref handling
Jaroslav Hajek <highegg@gmail.com>
parents: 9644
diff changeset
261 {
318e0cdd31bd improve OOP subsref handling
Jaroslav Hajek <highegg@gmail.com>
parents: 9644
diff changeset
262 tree_decl_elt *elt = *p;
318e0cdd31bd improve OOP subsref handling
Jaroslav Hajek <highegg@gmail.com>
parents: 9644
diff changeset
263 if (elt->is_defined ())
318e0cdd31bd improve OOP subsref handling
Jaroslav Hajek <highegg@gmail.com>
parents: 9644
diff changeset
264 retval(i++) = elt->rvalue1 ();
318e0cdd31bd improve OOP subsref handling
Jaroslav Hajek <highegg@gmail.com>
parents: 9644
diff changeset
265 else
318e0cdd31bd improve OOP subsref handling
Jaroslav Hajek <highegg@gmail.com>
parents: 9644
diff changeset
266 break;
318e0cdd31bd improve OOP subsref handling
Jaroslav Hajek <highegg@gmail.com>
parents: 9644
diff changeset
267 }
577
91e2164fb1b2 [project @ 1994-08-03 20:06:54 by jwe]
jwe
parents:
diff changeset
268
9691
318e0cdd31bd improve OOP subsref handling
Jaroslav Hajek <highegg@gmail.com>
parents: 9644
diff changeset
269 return retval;
577
91e2164fb1b2 [project @ 1994-08-03 20:06:54 by jwe]
jwe
parents:
diff changeset
270 }
9691
318e0cdd31bd improve OOP subsref handling
Jaroslav Hajek <highegg@gmail.com>
parents: 9644
diff changeset
271 else
318e0cdd31bd improve OOP subsref handling
Jaroslav Hajek <highegg@gmail.com>
parents: 9644
diff changeset
272 {
318e0cdd31bd improve OOP subsref handling
Jaroslav Hajek <highegg@gmail.com>
parents: 9644
diff changeset
273 octave_value_list retval (len + vlen);
577
91e2164fb1b2 [project @ 1994-08-03 20:06:54 by jwe]
jwe
parents:
diff changeset
274
9691
318e0cdd31bd improve OOP subsref handling
Jaroslav Hajek <highegg@gmail.com>
parents: 9644
diff changeset
275 int i = 0;
9644
080e11f1b0c1 don't return undefined output values from user functions
Jaroslav Hajek <highegg@gmail.com>
parents: 8920
diff changeset
276
9691
318e0cdd31bd improve OOP subsref handling
Jaroslav Hajek <highegg@gmail.com>
parents: 9644
diff changeset
277 for (iterator p = begin (); p != end (); p++)
318e0cdd31bd improve OOP subsref handling
Jaroslav Hajek <highegg@gmail.com>
parents: 9644
diff changeset
278 {
318e0cdd31bd improve OOP subsref handling
Jaroslav Hajek <highegg@gmail.com>
parents: 9644
diff changeset
279 tree_decl_elt *elt = *p;
318e0cdd31bd improve OOP subsref handling
Jaroslav Hajek <highegg@gmail.com>
parents: 9644
diff changeset
280 retval(i++) = elt->rvalue1 ();
318e0cdd31bd improve OOP subsref handling
Jaroslav Hajek <highegg@gmail.com>
parents: 9644
diff changeset
281 }
723
1c072f20b522 [project @ 1994-09-21 16:00:10 by jwe]
jwe
parents: 712
diff changeset
282
9691
318e0cdd31bd improve OOP subsref handling
Jaroslav Hajek <highegg@gmail.com>
parents: 9644
diff changeset
283 for (octave_idx_type j = 0; j < vlen; j++)
318e0cdd31bd improve OOP subsref handling
Jaroslav Hajek <highegg@gmail.com>
parents: 9644
diff changeset
284 retval(i++) = varargout(j);
9644
080e11f1b0c1 don't return undefined output values from user functions
Jaroslav Hajek <highegg@gmail.com>
parents: 8920
diff changeset
285
9691
318e0cdd31bd improve OOP subsref handling
Jaroslav Hajek <highegg@gmail.com>
parents: 9644
diff changeset
286 return retval;
318e0cdd31bd improve OOP subsref handling
Jaroslav Hajek <highegg@gmail.com>
parents: 9644
diff changeset
287 }
577
91e2164fb1b2 [project @ 1994-08-03 20:06:54 by jwe]
jwe
parents:
diff changeset
288 }
91e2164fb1b2 [project @ 1994-08-03 20:06:54 by jwe]
jwe
parents:
diff changeset
289
1827
effa9400766f [project @ 1996-02-02 14:07:51 by jwe]
jwe
parents: 1742
diff changeset
290 bool
577
91e2164fb1b2 [project @ 1994-08-03 20:06:54 by jwe]
jwe
parents:
diff changeset
291 tree_parameter_list::is_defined (void)
91e2164fb1b2 [project @ 1994-08-03 20:06:54 by jwe]
jwe
parents:
diff changeset
292 {
1827
effa9400766f [project @ 1996-02-02 14:07:51 by jwe]
jwe
parents: 1742
diff changeset
293 bool status = true;
577
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294
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295 for (iterator p = begin (); p != end (); p++)
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296 {
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297 tree_decl_elt *elt = *p;
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298
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299 if (! elt->is_variable ())
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300 {
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301 status = false;
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302 break;
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303 }
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304 }
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305
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306 return status;
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307 }
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308
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309 tree_parameter_list *
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310 tree_parameter_list::dup (symbol_table::scope_id scope,
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311 symbol_table::context_id context) const
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312 {
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313 tree_parameter_list *new_list = new tree_parameter_list ();
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314
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315 if (takes_varargs ())
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316 new_list->mark_varargs ();
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317
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318 for (const_iterator p = begin (); p != end (); p++)
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319 {
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320 const tree_decl_elt *elt = *p;
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321
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322 new_list->append (elt->dup (scope, context));
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323 }
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324
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325 return new_list;
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326 }
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327
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328 void
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329 tree_parameter_list::accept (tree_walker& tw)
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330 {
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331 tw.visit_parameter_list (*this);
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332 }
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333
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334 // Return lists.
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335
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336 tree_return_list::~tree_return_list (void)
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337 {
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338 while (! empty ())
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339 {
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340 iterator p = begin ();
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341 delete *p;
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342 erase (p);
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343 }
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344 }
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345
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346 tree_return_list *
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347 tree_return_list::dup (symbol_table::scope_id scope,
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348 symbol_table::context_id context) const
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349 {
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350 tree_return_list *new_list = new tree_return_list ();
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351
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352 for (const_iterator p = begin (); p != end (); p++)
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353 {
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354 const tree_index_expression *elt = *p;
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355
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356 new_list->append (elt->dup (scope, context));
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357 }
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358
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359 return new_list;
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360 }
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361
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362 void
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363 tree_return_list::accept (tree_walker& tw)
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364 {
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365 tw.visit_return_list (*this);
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366 }