annotate libinterp/parse-tree/pt-arg-list.cc @ 30564:796f54d4ddbf stable

update Octave Project Developers copyright for the new year In files that have the "Octave Project Developers" copyright notice, update for 2021. In all .txi and .texi files except gpl.txi and gpl.texi in the doc/liboctave and doc/interpreter directories, change the copyright to "Octave Project Developers", the same as used for other source files. Update copyright notices for 2022 (not done since 2019). For gpl.txi and gpl.texi, change the copyright notice to be "Free Software Foundation, Inc." and leave the date at 2007 only because this file only contains the text of the GPL, not anything created by the Octave Project Developers. Add Paul Thomas to contributors.in.
author John W. Eaton <jwe@octave.org>
date Tue, 28 Dec 2021 18:22:40 -0500
parents 0a5b15007766
children e88a07dec498
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1 ////////////////////////////////////////////////////////////////////////
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2 //
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3 // Copyright (C) 1996-2022 The Octave Project Developers
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4 //
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5 // See the file COPYRIGHT.md in the top-level directory of this
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6 // distribution or <https://octave.org/copyright/>.
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7 //
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8 // This file is part of Octave.
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9 //
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10 // Octave is free software: you can redistribute it and/or modify it
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11 // under the terms of the GNU General Public License as published by
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12 // the Free Software Foundation, either version 3 of the License, or
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13 // (at your option) any later version.
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14 //
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15 // Octave is distributed in the hope that it will be useful, but
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16 // WITHOUT ANY WARRANTY; without even the implied warranty of
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17 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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18 // GNU General Public License for more details.
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19 //
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20 // You should have received a copy of the GNU General Public License
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21 // along with Octave; see the file COPYING. If not, see
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22 // <https://www.gnu.org/licenses/>.
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23 //
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24 ////////////////////////////////////////////////////////////////////////
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25
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26 #if defined (HAVE_CONFIG_H)
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27 # include "config.h"
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28 #endif
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29
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30 #include <string>
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31
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32 #include "str-vec.h"
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33
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34 #include "ovl.h"
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35 #include "ov.h"
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36 #include "pt-arg-list.h"
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37 #include "pt-exp.h"
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38 #include "pt-id.h"
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39 #include "pt-idx.h"
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40 #include "pt-pr-code.h"
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41
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42 namespace octave
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43 {
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44 // Argument lists.
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45
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46 tree_argument_list::~tree_argument_list (void)
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47 {
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48 while (! empty ())
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49 {
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50 auto p = begin ();
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51 delete *p;
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52 erase (p);
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53 }
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54 }
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55
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56 void
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57 tree_argument_list::append (const element_type& s)
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58 {
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59 base_list<tree_expression *>::append (s);
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60
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61 if (! m_list_includes_magic_tilde && s && s->is_identifier ())
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62 {
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63 tree_identifier *id = dynamic_cast<tree_identifier *> (s);
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64 m_list_includes_magic_tilde = id && id->is_black_hole ();
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65 }
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66 }
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67
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68 bool
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69 tree_argument_list::all_elements_are_constant (void) const
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70 {
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71 for (const tree_expression *elt : *this)
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72 {
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73 if (! elt->is_constant ())
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74 return false;
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75 }
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76
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77 return true;
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78 }
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79
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80 bool
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81 tree_argument_list::is_valid_lvalue_list (void) const
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82 {
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83 bool retval = true;
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84
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85 for (const tree_expression *elt : *this)
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86 {
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87 // There is no need for a separate check for the magic "~" because it
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88 // is represented by tree_black_hole, and that is derived from
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89 // tree_identifier.
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90 if (! (elt->is_identifier () || elt->is_index_expression ()))
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91 {
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92 retval = false;
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93 break;
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94 }
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95 }
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96
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97 return retval;
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98 }
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99
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100 string_vector
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101 tree_argument_list::get_arg_names (void) const
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102 {
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103 int len = length ();
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104
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105 string_vector retval (len);
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106
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107 int k = 0;
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108
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109 for (tree_expression *elt : *this)
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110 retval(k++) = elt->str_print_code ();
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111
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112 return retval;
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113 }
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114
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115 std::list<std::string>
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116 tree_argument_list::variable_names (void) const
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117 {
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118 std::list<std::string> retval;
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119
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120 for (tree_expression *elt : *this)
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121 {
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122 if (elt->is_identifier ())
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123 {
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124 tree_identifier *id = dynamic_cast<tree_identifier *> (elt);
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125
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126 retval.push_back (id->name ());
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127 }
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128 else if (elt->is_index_expression ())
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129 {
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130 tree_index_expression *idx_expr
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131 = dynamic_cast<tree_index_expression *> (elt);
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132
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133 retval.push_back (idx_expr->name ());
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134 }
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135 }
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136
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137 return retval;
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138 }
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139
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140 tree_argument_list *
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141 tree_argument_list::dup (symbol_scope& scope) const
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142 {
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143 tree_argument_list *new_list = new tree_argument_list ();
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144
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7620f1f5290d use m_ prefix for member variables in parse tree classes
John W. Eaton <jwe@octave.org>
parents: 24534
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145 new_list->m_simple_assign_lhs = m_simple_assign_lhs;
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146
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c763214a8260 maint: Use convention 'int *x' for naming pointers.
Rik <rik@octave.org>
parents: 23435
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147 for (const tree_expression *elt : *this)
23795
980f39c3ab90 Use C++11 nullptr rather than 0 in code (bug #51565).
Rik <rik@octave.org>
parents: 23696
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148 new_list->append (elt ? elt->dup (scope) : nullptr);
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149
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4e3d47dc7e25 move parse tree classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 22872
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150 return new_list;
4e3d47dc7e25 move parse tree classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 22872
diff changeset
151 }
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152 }