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annotate libinterp/parse-tree/pt-stmt.cc @ 33382:79cfa1b7a813

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replace nearly all remaining uses of panic_impossible with error Affected files: data.cc, error.cc, find.cc, graphics.in.h, ls-hdf5.cc, oct-hist.cc, oct-stream.cc, pr-output.cc, quad.cc, __init_fltk__.cc, cdef-class.cc, cdef-utils.cc, ov.h, octave.cc, pt-anon-scopes.cc, pt-array-list.cc, pt-assign.cc, pt-cmd.h, pt-eval.cc, pt-idx.cc, pt-stmt.cc, pt-walk.cc, and Sparse.cc.
author John W. Eaton <jwe@octave.org>
date Fri, 12 Apr 2024 11:15:32 -0400
parents d422992b5483
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
27923
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1 ////////////////////////////////////////////////////////////////////////
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2 //
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3 // Copyright (C) 1996-2024 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 <typeinfo>
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31
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32 #include "quit.h"
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33
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34 #include "bp-table.h"
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35 #include "comment-list.h"
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36 #include "event-manager.h"
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37 #include "input.h"
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38 #include "oct-lvalue.h"
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39 #include "ov.h"
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40 #include "pager.h"
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41 #include "pt-bp.h"
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42 #include "pt-cmd.h"
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43 #include "pt-eval.h"
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44 #include "pt-id.h"
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45 #include "pt-idx.h"
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46 #include "pt-jump.h"
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47 #include "pt-pr-code.h"
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48 #include "pt-stmt.h"
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49 #include "utils.h"
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50 #include "variables.h"
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51
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52 OCTAVE_BEGIN_NAMESPACE(octave)
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53
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54 // A list of commands to be executed.
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55
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56 tree_statement::~tree_statement ()
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57 {
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58 delete m_command;
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59 delete m_expression;
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60 }
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61
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62 void
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63 tree_statement::set_print_flag (bool print_flag)
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64 {
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65 if (m_expression)
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66 m_expression->set_print_flag (print_flag);
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67 }
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68
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69 bool
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70 tree_statement::print_result ()
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71 {
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72 return m_expression && m_expression->print_result ();
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73 }
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74
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75 void
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76 tree_statement::set_breakpoint (const std::string& condition)
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77 {
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78 if (m_command)
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79 m_command->set_breakpoint (condition);
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80 else if (m_expression)
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81 m_expression->set_breakpoint (condition);
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82 }
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83
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84 void
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85 tree_statement::delete_breakpoint ()
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86 {
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87 if (m_command)
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88 m_command->delete_breakpoint ();
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89 else if (m_expression)
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90 m_expression->delete_breakpoint ();
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91 }
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92
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93 bool
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94 tree_statement::is_breakpoint () const
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95 {
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96 return m_command ? m_command->is_breakpoint ()
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97 : (m_expression ? m_expression->is_breakpoint ()
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98 : false);
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99 }
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100
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101 bool
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102 tree_statement::is_active_breakpoint (tree_evaluator& tw) const
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103 {
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104 return m_command ? m_command->is_active_breakpoint (tw)
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105 : (m_expression ? m_expression->is_active_breakpoint (tw)
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106 : false);
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107 }
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108
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109 comment_list
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110 tree_statement::leading_comments () const
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111 {
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112 return (m_command
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113 ? m_command->leading_comments ()
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114 : m_expression->leading_comments ());
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115 }
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116
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117 filepos
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118 tree_statement::beg_pos () const
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119 {
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120 return (m_command ? m_command->beg_pos () : m_expression->beg_pos ());
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121 }
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122
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123 filepos
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124 tree_statement::end_pos () const
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125 {
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126 return (m_command ? m_command->end_pos () : m_expression->end_pos ());
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127 }
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128
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129 void
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130 tree_statement::update_end_pos (const filepos& pos)
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131 {
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132 if (m_command)
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133 m_command->update_end_pos (pos);
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134 else
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135 error ("unexpected call to tree_statement::update_end_pos - please report this bug");
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136 }
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137
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138 std::string
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139 tree_statement::bp_cond () const
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140 {
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141 return (m_command
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142 ? m_command->bp_cond ()
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143 : (m_expression ? m_expression->bp_cond () : "0"));
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144 }
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145
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146 int
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147 tree_statement::line () const
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148 {
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149 return (m_command
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150 ? m_command->line ()
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151 : (m_expression ? m_expression->line () : -1));
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152 }
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153
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154 int
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155 tree_statement::column () const
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156 {
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157 return (m_command
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158 ? m_command->column ()
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159 : (m_expression ? m_expression->column () : -1));
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160 }
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161
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162 void
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163 tree_statement::echo_code (const std::string& prefix)
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164 {
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165 tree_print_code tpc (octave_stdout, prefix);
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166
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167 accept (tpc);
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168 }
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169
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170 bool
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171 tree_statement::is_end_of_fcn_or_script () const
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172 {
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173 bool retval = false;
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174
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175 if (m_command)
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176 {
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177 tree_no_op_command *no_op_cmd
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178 = dynamic_cast<tree_no_op_command *> (m_command);
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179
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180 if (no_op_cmd)
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181 retval = no_op_cmd->is_end_of_fcn_or_script ();
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182 }
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183
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184 return retval;
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185 }
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186
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187 bool
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188 tree_statement::is_end_of_file () const
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189 {
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190 bool retval = false;
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191
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192 if (m_command)
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193 {
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194 tree_no_op_command *no_op_cmd
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195 = dynamic_cast<tree_no_op_command *> (m_command);
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196
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197 if (no_op_cmd)
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198 retval = no_op_cmd->is_end_of_file ();
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199 }
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200
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201 return retval;
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202 }
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203
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204 comment_list
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205 tree_statement_list::leading_comments () const
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206 {
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207 if (! empty ())
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208 {
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209 tree_statement *elt = front ();
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210
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211 if (elt)
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212 return elt->leading_comments ();
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213 }
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214
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215 return comment_list ();
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216 }
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217
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218 // Create a "breakpoint" tree-walker, and get it to "walk" this
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219 // statement list
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220 // (FIXME: What does that do???)
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221
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222 int
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223 tree_statement_list::set_breakpoint (int line, const std::string& condition)
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224 {
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225 tree_breakpoint tbp (line, tree_breakpoint::set, condition);
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226 accept (tbp);
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227
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228 return tbp.get_line ();
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229 }
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230
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231 void
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232 tree_statement_list::delete_breakpoint (int line)
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233 {
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234 if (line < 0)
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235 {
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236 octave_value_list bp_lst = list_breakpoints ();
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237
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238 int len = bp_lst.length ();
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239
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240 for (int i = 0; i < len; i++)
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241 {
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242 tree_breakpoint tbp (i, tree_breakpoint::clear);
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243 accept (tbp);
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244 }
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245 }
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246 else
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247 {
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248 tree_breakpoint tbp (line, tree_breakpoint::clear);
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249 accept (tbp);
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250 }
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251 }
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252
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253 octave_value_list
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254 tree_statement_list::list_breakpoints ()
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255 {
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256 tree_breakpoint tbp (0, tree_breakpoint::list);
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257 accept (tbp);
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258
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259 return tbp.get_list ();
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260 }
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261
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262 // Get list of pairs (breakpoint line, breakpoint condition)
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263 std::list<bp_type>
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264 tree_statement_list::breakpoints_and_conds ()
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265 {
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266 tree_breakpoint tbp (0, tree_breakpoint::list);
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267 accept (tbp);
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268
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269 std::list<bp_type> retval;
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270 octave_value_list lines = tbp.get_list ();
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271 octave_value_list conds = tbp.get_cond_list ();
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272
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273 for (int i = 0; i < lines.length (); i++)
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274 {
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275 retval.push_back (bp_type (lines(i).double_value (),
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276 conds(i).string_value ()));
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277 }
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278
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279 return retval;
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280 }
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281
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282 // Add breakpoints to file at multiple lines (the second arguments
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283 // of line), to stop only if condition is true.
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284 // Updates GUI via event_manager::update_breakpoint.
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285 // FIXME: COME BACK TO ME.
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286
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287 bp_table::bp_lines
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288 tree_statement_list::add_breakpoint (event_manager& evmgr,
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289 const std::string& file,
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290 const bp_table::bp_lines& lines,
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291 const std::string& condition)
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292 {
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293 bp_table::bp_lines retval;
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294
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295 for (const auto& lineno : lines)
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296 {
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297 int line = set_breakpoint (lineno, condition);
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298
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299 if (line)
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300 {
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301 if (! file.empty ())
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302 evmgr.update_breakpoint (true, file, line, condition);
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303
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304 retval.insert (line);
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305 }
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306 }
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307
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308 return retval;
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309 }
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310
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311 bp_table::bp_lines
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312 tree_statement_list::remove_all_breakpoints (event_manager& evmgr,
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313 const std::string& file)
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314 {
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315 bp_table::bp_lines retval;
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316
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317 octave_value_list bkpts = list_breakpoints ();
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318
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319 for (int i = 0; i < bkpts.length (); i++)
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320 {
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321 int lineno = bkpts(i).int_value ();
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322
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323 delete_breakpoint (lineno);
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324
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325 retval.insert (lineno);
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326
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327 if (! file.empty ())
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328 evmgr.update_breakpoint (false, file, lineno);
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329 }
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330
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331 return retval;
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332 }
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333
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334 OCTAVE_END_NAMESPACE(octave)