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annotate libinterp/parse-tree/pt-select.cc @ 18702:fa53284d4511 draft lyh

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Fix warnings
author LYH <lyh.kernel@gmail.com>
date Fri, 21 Mar 2014 14:59:39 -0400
parents d63878346099
children 6113e0c6920b
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 /*
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2
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3 Copyright (C) 1996-2013 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 "error.h"
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28 #include "oct-obj.h"
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29 #include "ov.h"
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30 #include "pt-cmd.h"
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31 #include "pt-exp.h"
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32 #include "pt-select.h"
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33 #include "pt-stmt.h"
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34 #include "pt-walk.h"
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35 #include "Cell.h"
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36 #include "ov-typeinfo.h"
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37
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38 // If clauses.
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39
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40 tree_if_clause::~tree_if_clause (void)
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41 {
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42 delete expr;
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43 delete list;
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44 delete lead_comm;
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45 }
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46
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47 tree_if_clause *
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48 tree_if_clause::dup (symbol_table::scope_id scope,
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49 symbol_table::context_id context) const
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50 {
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51 return new tree_if_clause (expr ? expr->dup (scope, context) : 0,
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52 list ? list->dup (scope, context) : 0,
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53 lead_comm ? lead_comm->dup () : 0);
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54 }
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55
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56 void
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57 tree_if_clause::accept (tree_walker& tw)
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58 {
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59 tw.visit_if_clause (*this);
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60 }
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61
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62 // List of if commands.
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63
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64 tree_if_command_list *
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65 tree_if_command_list::dup (symbol_table::scope_id scope,
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66 symbol_table::context_id context) const
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67 {
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68 tree_if_command_list *new_icl = new tree_if_command_list ();
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69
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70 for (const_iterator p = begin (); p != end (); p++)
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71 {
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72 const tree_if_clause *elt = *p;
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73
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74 new_icl->append (elt ? elt->dup (scope, context) : 0);
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75 }
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76
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77 return new_icl;
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78 }
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79
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80 void
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81 tree_if_command_list::accept (tree_walker& tw)
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82 {
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83 tw.visit_if_command_list (*this);
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84 }
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85
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86 // If.
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87
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88 tree_if_command::~tree_if_command (void)
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89 {
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90 delete list;
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91 delete lead_comm;
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92 delete trail_comm;
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93 }
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94
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95 tree_command *
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96 tree_if_command::dup (symbol_table::scope_id scope,
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97 symbol_table::context_id context) const
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98 {
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99 return new tree_if_command (list ? list->dup (scope, context) : 0,
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100 lead_comm ? lead_comm->dup () : 0,
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101 trail_comm ? trail_comm->dup () : 0,
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102 line (), column ());
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103 }
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104
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105 void
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106 tree_if_command::accept (tree_walker& tw)
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107 {
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108 tw.visit_if_command (*this);
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109 }
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110
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111 // Switch cases.
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112
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113 tree_switch_case::~tree_switch_case (void)
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114 {
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115 delete label;
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116 delete list;
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117 delete lead_comm;
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118 }
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119
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120
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121 bool
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122 tree_switch_case::label_matches (const octave_value& val)
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123 {
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124 octave_value label_value = label->rvalue1 ();
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125
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126 if (! error_state && label_value.is_defined () )
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127 {
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128 if (label_value.is_cell ())
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129 {
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130 Cell cell (label_value.cell_value ());
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131
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132 for (octave_idx_type i = 0; i < cell.rows (); i++)
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133 {
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134 for (octave_idx_type j = 0; j < cell.columns (); j++)
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135 {
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136 bool match = val.is_equal (cell(i,j));
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137
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138 if (error_state)
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139 return false;
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140 else if (match)
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141 return true;
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142 }
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143 }
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144 }
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145 else
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146 {
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147 bool match = val.is_equal (label_value);
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148
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149 if (error_state)
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150 return false;
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151 else
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152 return match;
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153 }
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154 }
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155
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156 return false;
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157 }
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158
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159 tree_switch_case *
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160 tree_switch_case::dup (symbol_table::scope_id scope,
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161 symbol_table::context_id context) const
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162 {
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163 return new tree_switch_case (label ? label->dup (scope, context) : 0,
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164 list ? list->dup (scope, context) : 0,
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165 lead_comm ? lead_comm->dup () : 0);
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166 }
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167
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168 void
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169 tree_switch_case::accept (tree_walker& tw)
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170 {
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171 tw.visit_switch_case (*this);
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172 }
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173
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174 // List of switch cases.
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175
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176 tree_switch_case_list *
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177 tree_switch_case_list::dup (symbol_table::scope_id scope,
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178 symbol_table::context_id context) const
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179 {
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180 tree_switch_case_list *new_scl = new tree_switch_case_list ();
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181
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182 for (const_iterator p = begin (); p != end (); p++)
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183 {
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184 const tree_switch_case *elt = *p;
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185
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186 new_scl->append (elt ? elt->dup (scope, context) : 0);
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187 }
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188
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189 return new_scl;
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190 }
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191
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192 void
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193 tree_switch_case_list::accept (tree_walker& tw)
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194 {
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195 tw.visit_switch_case_list (*this);
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196 }
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197
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198 // Switch.
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199
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200 tree_switch_command::~tree_switch_command (void)
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201 {
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202 delete expr;
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203 delete list;
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204 delete lead_comm;
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205 delete trail_comm;
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206 }
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207
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208 tree_command *
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209 tree_switch_command::dup (symbol_table::scope_id scope,
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210 symbol_table::context_id context) const
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211 {
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212 return new tree_switch_command (expr ? expr->dup (scope, context) : 0,
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213 list ? list->dup (scope, context) : 0,
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214 lead_comm ? lead_comm->dup () : 0,
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215 trail_comm ? trail_comm->dup () : 0,
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216 line (), column ());
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217 }
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218
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219 void
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220 tree_switch_command::accept (tree_walker& tw)
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221 {
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222 tw.visit_switch_command (*this);
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223 }