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annotate libinterp/corefcn/stack-frame.cc @ 27149:61226b7bd6b9

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fix calculation of value offsets for variables added to script scopes * stack-frame.cc (script_stack_frame::get_val_offsets): Attempt to find valid value offset (if any) for value added to scope. (script_stack_frame::get_val_offsets_with_insert): Likewise.
author John W. Eaton <jwe@octave.org>
date Tue, 04 Jun 2019 20:04:21 +0000
parents 8408acb7ca4f
children 8c27802a76c4
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1 /*
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2
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3 Copyright (C) 1995-2018 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
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9 the Free Software Foundation, either version 3 of the License, or
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10 (at your 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
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13 WITHOUT ANY WARRANTY; without even the implied warranty of
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14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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15 GNU General Public License 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 <https://www.gnu.org/licenses/>.
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20
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21 */
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22
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23 #if defined (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 "lo-regexp.h"
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28 #include "str-vec.h"
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29
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30 #include "call-stack.h"
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31 #include "defun.h"
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32 #include "interpreter.h"
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33 #include "interpreter-private.h"
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34 #include "oct-map.h"
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35 #include "ov.h"
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36 #include "ov-fcn.h"
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37 #include "ov-fcn-handle.h"
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38 #include "ov-usr-fcn.h"
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39 #include "pager.h"
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40 #include "parse.h"
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41 #include "stack-frame.h"
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42 #include "stack-frame-walker.h"
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43 #include "syminfo.h"
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44 #include "syminfo-accumulator.h"
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45 #include "symrec.h"
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46 #include "symscope.h"
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47 #include "variables.h"
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48
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49 namespace octave
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50 {
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51 // FIXME: There should probably be a display method for the script,
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52 // fcn, and scope objects and the script and function objects should
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53 // be responsible for displaying the scopes they contain.
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54
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55 static void display_scope (std::ostream& os, const symbol_scope& scope)
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56 {
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57 if (scope)
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58 {
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59 os << "scope: " << scope.name () << std::endl;
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60
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61 if (scope.num_symbols () > 0)
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62 {
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63 os << "name (frame offset, data offset, storage class):"
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64 << std::endl;
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65
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66 std::list<symbol_record> symbols = scope.symbol_list ();
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67
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68 for (auto& sym : symbols)
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69 {
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70 os << " " << sym.name () << " (" << sym.frame_offset ()
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71 << ", " << sym.data_offset () << ", " << sym.storage_class ()
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72 << ")" << std::endl;
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73 }
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74 }
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75 }
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76 }
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77
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78 class symbol_cleaner : public stack_frame_walker
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79 {
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80 public:
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81
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82 symbol_cleaner (const std::string& pattern, bool have_regexp = false)
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83 : stack_frame_walker (), m_patterns (pattern),
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84 m_clear_all_names (false), m_clear_objects (false),
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85 m_have_regexp (have_regexp), m_cleared_names ()
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86 { }
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87
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88 symbol_cleaner (const string_vector& patterns, bool have_regexp = false)
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89 : stack_frame_walker (), m_patterns (patterns),
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90 m_clear_all_names (false), m_clear_objects (false),
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91 m_have_regexp (have_regexp), m_cleared_names ()
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92 { }
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93
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94 symbol_cleaner (bool clear_all_names = true, bool clear_objects = false)
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95 : stack_frame_walker (), m_patterns (),
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96 m_clear_all_names (clear_all_names), m_clear_objects (clear_objects),
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97 m_have_regexp (false), m_cleared_names ()
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98 { }
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99
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100 symbol_cleaner (const symbol_cleaner&) = delete;
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101
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102 symbol_cleaner& operator = (const symbol_cleaner&) = delete;
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103
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104 ~symbol_cleaner (void) = default;
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105
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106 void visit_compiled_fcn_stack_frame (compiled_fcn_stack_frame& frame)
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107 {
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108 // This one follows static link always. Hmm, should the access
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109 // link for a compiled_fcn_stack_frame be the same as the static
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110 // link?
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111
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112 stack_frame *slink = frame.static_link ();
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113
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114 if (slink)
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115 slink->accept (*this);
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116 }
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117
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118 void visit_script_stack_frame (script_stack_frame& frame)
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119 {
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120 stack_frame *alink = frame.access_link ();
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121
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122 if (alink)
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123 alink->accept (*this);
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124 }
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125
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126 void visit_user_fcn_stack_frame (user_fcn_stack_frame& frame)
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127 {
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128 clean_frame (frame);
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129
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130 stack_frame *alink = frame.access_link ();
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131
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132 if (alink)
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133 alink->accept (*this);
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134 }
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135
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136 void visit_scope_stack_frame (scope_stack_frame& frame)
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137 {
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138 clean_frame (frame);
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139
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140 stack_frame *alink = frame.access_link ();
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141
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142 if (alink)
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143 alink->accept (*this);
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144 }
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145
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146 private:
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147
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148 void maybe_clear_symbol (stack_frame& frame, const symbol_record& sym)
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149 {
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150 std::string name = sym.name ();
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151
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152 if (m_cleared_names.find (name) == m_cleared_names.end ())
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153 {
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154 // FIXME: Should we check that the name is defined and skip if
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155 // it is not? Is it possible for another symbol with the same
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156 // name to appear in a later stack frame?
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157
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158 // FIXME: If we are clearing objects and a symbol is found,
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159 // should we add it to the list of cleared names (since
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160 // we did find a symbol) but skip clearing the object?
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161
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162 if (m_clear_objects && ! frame.is_object (sym))
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163 return;
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164
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165 m_cleared_names.insert (name);
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166
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167 frame.clear (sym);
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168 }
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169 }
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170
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171 // FIXME: It would be nice to avoid the duplication in the following
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172 // function.
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173
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174 void clear_symbols (stack_frame& frame,
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175 const std::list<symbol_record>& symbols)
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176 {
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177 if (m_clear_all_names)
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178 {
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179 for (const auto& sym : symbols)
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180 maybe_clear_symbol (frame, sym);
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181 }
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182 else if (m_have_regexp)
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183 {
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184 octave_idx_type npatterns = m_patterns.numel ();
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185
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186 for (octave_idx_type j = 0; j < npatterns; j++)
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187 {
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188 std::string pattern = m_patterns[j];
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189
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190 regexp pat (pattern);
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191
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192 for (const auto& sym : symbols)
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193 {
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194 if (pat.is_match (sym.name ()))
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195 maybe_clear_symbol (frame, sym);
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196 }
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197 }
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198 }
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199 else
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200 {
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201 octave_idx_type npatterns = m_patterns.numel ();
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202
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203 for (octave_idx_type j = 0; j < npatterns; j++)
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204 {
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205 std::string pattern = m_patterns[j];
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206
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207 glob_match pat (pattern);
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208
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209 for (const auto& sym : symbols)
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210 {
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211 if (pat.match (sym.name ()))
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212 maybe_clear_symbol (frame, sym);
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213 }
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214 }
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215 }
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216 }
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217
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218 void clean_frame (stack_frame& frame)
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219 {
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220 symbol_scope scope = frame.get_scope ();
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221
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222 std::list<symbol_record> symbols = scope.symbol_list ();
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223
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224 if (m_clear_all_names || ! m_patterns.empty ())
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225 clear_symbols (frame, symbols);
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226 }
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227
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228 string_vector m_patterns;
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229
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230 bool m_clear_all_names;
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231 bool m_clear_objects;
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232 bool m_have_regexp;
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233
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234 std::set<std::string> m_cleared_names;
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235 };
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236
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237 // This function is only implemented for user_fcn stack frames and
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238 // only called for those objects using unwind_protect and the
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239 // call_stack::clear_current_frame_values function. Anything else
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240 // indicates an error in the implementation.
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241
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242 void stack_frame::clear_values (void)
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243 {
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244 panic_impossible ();
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245 }
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246
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247 // Return first occurrence of variables in current stack frame and any
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248 // parent frames reachable through access links.
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249
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250 symbol_info_list stack_frame::all_variables (void)
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251 {
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252 symbol_info_accumulator sia (true, true);
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253
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254 accept (sia);
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255
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256 return sia.symbol_info ();
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257 }
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258
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259 std::list<symbol_record>
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260 stack_frame::glob (const std::string& pattern) const
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261 {
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262 std::list<symbol_record> retval;
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263
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264 symbol_scope scope = get_scope ();
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265
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266 const std::map<std::string, symbol_record>& symbols = scope.symbols ();
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267
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268 glob_match pat (pattern);
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269
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270 for (const auto& nm_sr : symbols)
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271 {
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272 if (pat.match (nm_sr.first))
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273 {
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274 symbol_record sr = nm_sr.second;
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275
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276 if (! is_variable (sr))
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277 continue;
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278
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279 retval.push_back (sr);
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280 }
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281 }
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282
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283 return retval;
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284 }
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285
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286 std::list<symbol_record>
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287 stack_frame::regexp (const std::string& pattern) const
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288 {
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289 std::list<symbol_record> retval;
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290
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291 symbol_scope scope = get_scope ();
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292
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293 const std::map<std::string, symbol_record>& symbols = scope.symbols ();
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294
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295 octave::regexp pat (pattern);
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296
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297 for (const auto& nm_sr : symbols)
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298 {
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299 if (pat.is_match (nm_sr.first))
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300 {
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301 symbol_record sr = nm_sr.second;
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302
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303 if (! is_variable (sr))
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304 continue;
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305
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306 retval.push_back (sr);
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307 }
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308 }
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309
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310 return retval;
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311 }
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312
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313 std::list<std::string> stack_frame::variable_names (void) const
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314 {
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315 std::list<std::string> retval;
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316
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317 symbol_scope scope = get_scope ();
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318
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319 const std::map<std::string, symbol_record>& symbols = scope.symbols ();
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320
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321 for (const auto& nm_sr : symbols)
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322 {
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323 if (is_variable (nm_sr.second))
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324 retval.push_back (nm_sr.first);
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325 }
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326
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327 retval.sort ();
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328
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329 return retval;
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330 }
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331
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332 size_t stack_frame::size (void) const
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333 {
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334 // This function should only be called for user_fcn_stack_frame or
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335 // scope_stack_frame objects. Anything else indicates an error in
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336 // the implementation.
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337
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338 panic_impossible ();
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339 }
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340
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341 void stack_frame::resize (size_t)
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342 {
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343 // This function should only be called for user_fcn_stack_frame or
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344 // scope_stack_frame objects. Anything else indicates an error in
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345 // the implementation.
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346
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347 panic_impossible ();
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348 }
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349
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350 stack_frame::scope_flags stack_frame::get_scope_flag (size_t) const
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351 {
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352 // This function should only be called for user_fcn_stack_frame or
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353 // scope_stack_frame objects. Anything else indicates an error in
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354 // the implementation.
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355
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356 panic_impossible ();
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357 }
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358
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359 void stack_frame::set_scope_flag (size_t, scope_flags)
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360 {
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361 // This function should only be called for user_fcn_stack_frame or
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362 // scope_stack_frame objects. Anything else indicates an error in
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363 // the implementation.
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364
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365 panic_impossible ();
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366 }
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367
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368 void stack_frame::install_variable (const symbol_record& sym,
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369 const octave_value& value, bool global)
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370 {
26673
4271b53b24a6 when installing global variable don't warn if it is already global
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371 if (global && ! is_global (sym))
26661
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372 {
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373 octave_value val = varval (sym);
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374
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375 if (val.is_defined ())
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376 {
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377 std::string nm = sym.name ();
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378
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379 warning_with_id ("Octave:global-local-conflict",
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380 "global: '%s' is defined in the current scope.\n",
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381 nm.c_str ());
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382 warning_with_id ("Octave:global-local-conflict",
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383 "global: in a future version, global variables must be declared before use.\n");
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384
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385 // If the symbol is defined in the local but not the
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386 // global scope, then use the local value as the
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387 // initial value. This value will also override any
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388 // initializer in the global statement.
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389 octave_value global_val = m_call_stack.global_varval (nm);
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390
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diff changeset
391 if (global_val.is_defined ())
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diff changeset
392 {
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393 warning_with_id ("Octave:global-local-conflict",
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diff changeset
394 "global: global value overrides existing local value");
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diff changeset
395
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
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diff changeset
396 clear (sym);
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397 }
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
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diff changeset
398 else
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diff changeset
399 {
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diff changeset
400 warning_with_id ("Octave:global-local-conflict",
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diff changeset
401 "global: existing local value used to initialize global variable");
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diff changeset
402
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
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diff changeset
403 m_call_stack.global_varref (nm) = val;
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
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diff changeset
404 }
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diff changeset
405 }
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
406
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
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diff changeset
407 mark_global (sym);
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diff changeset
408 }
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
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parents:
diff changeset
409
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
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diff changeset
410 if (value.is_defined ())
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diff changeset
411 assign (sym, value);
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diff changeset
412 }
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
413
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
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parents:
diff changeset
414 octave_value stack_frame::varval (size_t) const
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
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parents:
diff changeset
415 {
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
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parents:
diff changeset
416 // This function should only be called for user_fcn_stack_frame or
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
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diff changeset
417 // scope_stack_frame objects. Anything else indicates an error in
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
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diff changeset
418 // the implementation.
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parents:
diff changeset
419
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diff changeset
420 panic_impossible ();
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parents:
diff changeset
421 }
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
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parents:
diff changeset
422
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
423 octave_value& stack_frame::varref (size_t)
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
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diff changeset
424 {
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
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diff changeset
425 // This function should only be called for user_fcn_stack_frame or
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
426 // scope_stack_frame objects. Anything else indicates an error in
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
427 // the implementation.
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
428
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
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diff changeset
429 panic_impossible ();
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
430 }
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
431
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
432 void stack_frame::clear_objects (void)
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
433 {
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
434 symbol_cleaner sc (true, true);
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
435
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
436 accept (sc);
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
437 }
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
438
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
439 void stack_frame::clear_variable (const std::string& name)
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
440 {
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
441 symbol_cleaner sc (name);
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
442
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
443 accept (sc);
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
444 }
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
445
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
446 void stack_frame::clear_variable_pattern (const std::string& pattern)
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
447 {
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
448 symbol_cleaner sc (pattern);
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
449
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
450 accept (sc);
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
451 }
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
452
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
453 void stack_frame::clear_variable_pattern (const string_vector& patterns)
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
454 {
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
455 symbol_cleaner sc (patterns);
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
456
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
457 accept (sc);
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
458 }
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
459
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
460 void stack_frame::clear_variable_regexp (const std::string& pattern)
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
461 {
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
462 symbol_cleaner sc (pattern, true);
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
463
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
464 accept (sc);
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
465 }
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
466
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
467 void stack_frame::clear_variable_regexp (const string_vector& patterns)
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
468 {
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
469 symbol_cleaner sc (patterns, true);
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
470
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
471 accept (sc);
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
472 }
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
473
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
474 void stack_frame::clear_variables (void)
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
475 {
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
476 symbol_cleaner sc;
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
477
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
478 accept (sc);
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
479 }
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
480
27037
8408acb7ca4f make dbup/dbdown work again (bug #56020)
John W. Eaton <jwe@octave.org>
parents: 26824
diff changeset
481 void stack_frame::display_stopped_in_message (std::ostream& os) const
8408acb7ca4f make dbup/dbdown work again (bug #56020)
John W. Eaton <jwe@octave.org>
parents: 26824
diff changeset
482 {
8408acb7ca4f make dbup/dbdown work again (bug #56020)
John W. Eaton <jwe@octave.org>
parents: 26824
diff changeset
483 if (index () == 0)
8408acb7ca4f make dbup/dbdown work again (bug #56020)
John W. Eaton <jwe@octave.org>
parents: 26824
diff changeset
484 os << "at top level" << std::endl;
8408acb7ca4f make dbup/dbdown work again (bug #56020)
John W. Eaton <jwe@octave.org>
parents: 26824
diff changeset
485 else
8408acb7ca4f make dbup/dbdown work again (bug #56020)
John W. Eaton <jwe@octave.org>
parents: 26824
diff changeset
486 {
8408acb7ca4f make dbup/dbdown work again (bug #56020)
John W. Eaton <jwe@octave.org>
parents: 26824
diff changeset
487 os << "stopped in " << fcn_name ();
8408acb7ca4f make dbup/dbdown work again (bug #56020)
John W. Eaton <jwe@octave.org>
parents: 26824
diff changeset
488
8408acb7ca4f make dbup/dbdown work again (bug #56020)
John W. Eaton <jwe@octave.org>
parents: 26824
diff changeset
489 int l = line ();
8408acb7ca4f make dbup/dbdown work again (bug #56020)
John W. Eaton <jwe@octave.org>
parents: 26824
diff changeset
490 if (l > 0)
8408acb7ca4f make dbup/dbdown work again (bug #56020)
John W. Eaton <jwe@octave.org>
parents: 26824
diff changeset
491 os << " at line " << line ();
8408acb7ca4f make dbup/dbdown work again (bug #56020)
John W. Eaton <jwe@octave.org>
parents: 26824
diff changeset
492
8408acb7ca4f make dbup/dbdown work again (bug #56020)
John W. Eaton <jwe@octave.org>
parents: 26824
diff changeset
493 os << " [" << fcn_file_name () << "] " << std::endl;
8408acb7ca4f make dbup/dbdown work again (bug #56020)
John W. Eaton <jwe@octave.org>
parents: 26824
diff changeset
494 }
8408acb7ca4f make dbup/dbdown work again (bug #56020)
John W. Eaton <jwe@octave.org>
parents: 26824
diff changeset
495 }
8408acb7ca4f make dbup/dbdown work again (bug #56020)
John W. Eaton <jwe@octave.org>
parents: 26824
diff changeset
496
26661
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
497 void stack_frame::display (bool follow) const
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
498 {
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
499 std::ostream& os = octave_stdout;
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
500
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
501 os << "-- [stack_frame] (" << this << ") --" << std::endl;
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
502
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
503 os << "static link: ";
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
504 if (m_static_link)
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
505 os << m_static_link;
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
506 else
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
507 os << "NULL";
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
508 os << std::endl;
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
509
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
510 os << "access link: ";
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
511 if (m_access_link)
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
512 os << m_access_link;
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
513 else
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
514 os << "NULL";
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
515 os << std::endl;
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
516
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
517 os << "line: " << m_line << std::endl;
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
518 os << "column: " << m_column << std::endl;
27037
8408acb7ca4f make dbup/dbdown work again (bug #56020)
John W. Eaton <jwe@octave.org>
parents: 26824
diff changeset
519 os << "index: " << m_index << std::endl;
26661
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
520
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
521 os << std::endl;
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
522
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
523 if (! follow)
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
524 return;
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
525
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
526 os << "FOLLOWING ACCESS LINKS:" << std::endl;
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
527 const stack_frame *frm = access_link ();
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
528 while (frm)
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
529 {
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
530 frm->display (false);
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
531 os << std::endl;
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
532
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
533 frm = frm->access_link ();
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
534 }
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
535 }
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
536
26824
d9770844392e provide virtual dup methods for stack frames
John W. Eaton <jwe@octave.org>
parents: 26673
diff changeset
537 compiled_fcn_stack_frame *
d9770844392e provide virtual dup methods for stack frames
John W. Eaton <jwe@octave.org>
parents: 26673
diff changeset
538 compiled_fcn_stack_frame::dup (void) const
d9770844392e provide virtual dup methods for stack frames
John W. Eaton <jwe@octave.org>
parents: 26673
diff changeset
539 {
d9770844392e provide virtual dup methods for stack frames
John W. Eaton <jwe@octave.org>
parents: 26673
diff changeset
540 return new compiled_fcn_stack_frame (*this);
d9770844392e provide virtual dup methods for stack frames
John W. Eaton <jwe@octave.org>
parents: 26673
diff changeset
541 }
d9770844392e provide virtual dup methods for stack frames
John W. Eaton <jwe@octave.org>
parents: 26673
diff changeset
542
26661
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
543 void compiled_fcn_stack_frame::display (bool follow) const
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
544 {
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
545 std::ostream& os = octave_stdout;
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
546
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
547 os << "-- [compiled_fcn_stack_frame] (" << this << ") --" << std::endl;
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
548 stack_frame::display (follow);
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
549
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
550 os << "fcn: " << m_fcn->name ()
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
551 << " (" << m_fcn->type_name () << ")" << std::endl;
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
552 }
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
553
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
554 void compiled_fcn_stack_frame::accept (stack_frame_walker& sfw)
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
555 {
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
556 sfw.visit_compiled_fcn_stack_frame (*this);
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
557 }
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
558
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
559 script_stack_frame::script_stack_frame (call_stack& cs,
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
560 octave_user_script *script,
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
561 unwind_protect *up_frame,
27037
8408acb7ca4f make dbup/dbdown work again (bug #56020)
John W. Eaton <jwe@octave.org>
parents: 26824
diff changeset
562 size_t index,
26661
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
563 stack_frame *static_link)
27037
8408acb7ca4f make dbup/dbdown work again (bug #56020)
John W. Eaton <jwe@octave.org>
parents: 26824
diff changeset
564 : stack_frame (cs, index, static_link, get_access_link (static_link)),
26661
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
565 m_script (script), m_unwind_protect_frame (up_frame),
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
566 m_lexical_frame_offsets (get_num_symbols (script), 1),
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
567 m_value_offsets (get_num_symbols (script), 0)
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
568 {
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
569 set_script_offsets ();
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
570 }
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
571
26824
d9770844392e provide virtual dup methods for stack frames
John W. Eaton <jwe@octave.org>
parents: 26673
diff changeset
572 script_stack_frame *
d9770844392e provide virtual dup methods for stack frames
John W. Eaton <jwe@octave.org>
parents: 26673
diff changeset
573 script_stack_frame::dup (void) const
d9770844392e provide virtual dup methods for stack frames
John W. Eaton <jwe@octave.org>
parents: 26673
diff changeset
574 {
d9770844392e provide virtual dup methods for stack frames
John W. Eaton <jwe@octave.org>
parents: 26673
diff changeset
575 return new script_stack_frame (*this);
d9770844392e provide virtual dup methods for stack frames
John W. Eaton <jwe@octave.org>
parents: 26673
diff changeset
576 }
d9770844392e provide virtual dup methods for stack frames
John W. Eaton <jwe@octave.org>
parents: 26673
diff changeset
577
26661
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
578 size_t script_stack_frame::get_num_symbols (octave_user_script *script)
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
579 {
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
580 symbol_scope script_scope = script->scope ();
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
581
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
582 return script_scope.num_symbols ();
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
583 }
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
584
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
585 void script_stack_frame::set_script_offsets (void)
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
586 {
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
587 // Set frame and data offsets inside stack frame based on enclosing
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
588 // scope(s).
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
589
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
590 symbol_scope script_scope = m_script->scope ();
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
591
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
592 size_t num_script_symbols = script_scope.num_symbols ();
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
593
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
594 resize (num_script_symbols);
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
595
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
596 const std::map<std::string, symbol_record>& script_symbols
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
597 = script_scope.symbols ();
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
598
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
599 set_script_offsets_internal (script_symbols);
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
600 }
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
601
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
602 void script_stack_frame::set_script_offsets_internal
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
603 (const std::map<std::string, symbol_record>& script_symbols)
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
604 {
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
605 // This scope will be used to evaluate the script. Find (or
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
606 // possibly insert) symbols from the dummy script scope here.
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
607
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
608 symbol_scope eval_scope = m_access_link->get_scope ();
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
609
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
610 if (eval_scope.is_nested ())
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
611 {
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
612 bool found = false;
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
613
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
614 for (const auto& nm_sr : script_symbols)
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
615 {
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
616 std::string name = nm_sr.first;
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
617 symbol_record script_sr = nm_sr.second;
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
618
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
619 symbol_scope parent_scope = eval_scope;
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
620
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
621 size_t count = 1;
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
622
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
623 while (parent_scope)
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
624 {
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
625 const std::map<std::string, symbol_record>& parent_scope_symbols
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
626 = parent_scope.symbols ();
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
627
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
628 auto p = parent_scope_symbols.find (name);
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
629
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
630 if (p != parent_scope_symbols.end ())
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
631 {
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
632 found = true;
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
633 symbol_record parent_scope_sr = p->second;
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
634
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
635 size_t script_sr_data_offset = script_sr.data_offset ();
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
636
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
637 m_lexical_frame_offsets.at (script_sr_data_offset)
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
638 = parent_scope_sr.frame_offset () + 1;
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
639
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
640 m_value_offsets.at (script_sr_data_offset)
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
641 = parent_scope_sr.data_offset ();
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
642
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
643 break;
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
644 }
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
645 else
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
646 {
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
647 count++;
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
648 parent_scope = parent_scope.parent_scope ();
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
649 }
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
650 }
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
651
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
652 if (! found)
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
653 error ("symbol '%s' cannot be added to static scope",
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
654 name.c_str ());
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
655 }
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
656 }
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
657 else
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
658 {
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
659 const std::map<std::string, symbol_record>& eval_scope_symbols
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
660 = eval_scope.symbols ();
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
661
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
662 for (const auto& nm_sr : script_symbols)
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
663 {
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
664 std::string name = nm_sr.first;
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
665 symbol_record script_sr = nm_sr.second;
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
666
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
667 auto p = eval_scope_symbols.find (name);
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
668
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
669 symbol_record eval_scope_sr;
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
670
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
671 if (p == eval_scope_symbols.end ())
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
672 eval_scope_sr = eval_scope.insert (name);
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
673 else
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
674 eval_scope_sr = p->second;
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
675
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
676 size_t script_sr_data_offset = script_sr.data_offset ();
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
677
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
678 // The +1 is for going from the script frame to the eval
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
679 // frame. Only one access_link should need to be followed.
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
680
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
681 m_lexical_frame_offsets.at (script_sr_data_offset)
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
682 = eval_scope_sr.frame_offset () + 1;
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
683
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
684 m_value_offsets.at (script_sr_data_offset)
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
685 = eval_scope_sr.data_offset ();
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
686 }
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
687 }
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
688 }
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
689
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
690 void script_stack_frame::resize_and_update_script_offsets (const symbol_record& sym)
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
691 {
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
692 size_t data_offset = sym.data_offset ();
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
693
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
694 // This function is called when adding new symbols to a script
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
695 // scope. If the symbol wasn't present before, it should be outside
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
696 // the range so we need to resize then update offsets.
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
697
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
698 assert (data_offset >= size ());
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
699
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
700 resize (data_offset+1);
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
701
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
702 // FIXME: We should be able to avoid creating the map object and the
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
703 // looping in the set_scripts_offsets_internal function. Can we do
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
704 // that without (or with minimal) code duplication?
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
705
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
706 std::map<std::string, symbol_record> tmp_symbols;
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
707 tmp_symbols[sym.name ()] = sym;
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
708 set_script_offsets_internal (tmp_symbols);
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
709 }
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
710
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
711 // If this is a nested scope, set access_link to nearest parent
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
712 // stack frame that corresponds to the lexical parent of this scope.
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
713
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
714 stack_frame *
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
715 script_stack_frame::get_access_link (stack_frame *static_link)
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
716 {
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
717 stack_frame *alink = nullptr;
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
718
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
719 // If this script is called from another script, set access
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
720 // link to ultimate parent stack frame.
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
721
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
722 alink = static_link;
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
723
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
724 while (alink->is_user_script_frame ())
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
725 {
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
726 if (alink->access_link ())
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
727 alink = alink->access_link ();
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
728 else
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
729 break;
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
730 }
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
731
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
732 return alink;
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
733 }
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
734
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
735 symbol_record script_stack_frame::lookup_symbol (const std::string& name) const
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
736 {
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
737 symbol_scope scope = get_scope ();
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
738
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
739 symbol_record sym = scope.lookup_symbol (name);
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
740
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
741 if (sym)
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
742 {
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
743 assert (sym.frame_offset () == 0);
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
744
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
745 return sym;
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
746 }
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
747
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
748 sym = m_access_link->lookup_symbol (name);
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
749
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
750 // Return symbol record with adjusted frame offset.
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
751 symbol_record new_sym = sym.dup ();
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
752
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
753 new_sym.set_frame_offset (sym.frame_offset () + 1);
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
754
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
755 return new_sym;
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
756 }
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
757
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
758 symbol_record script_stack_frame::insert_symbol (const std::string& name)
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
759 {
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
760 // If the symbols is already in the immediate scope, there is
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
761 // nothing more to do.
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
762
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
763 symbol_scope scope = get_scope ();
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
764
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
765 symbol_record sym = scope.lookup_symbol (name);
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
766
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
767 if (sym)
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
768 {
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
769 // All symbol records in a script scope should have zero offset,
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
770 // which means we redirect our lookup using
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
771 // lexical_frame_offsets and values_offets.
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
772 assert (sym.frame_offset () == 0);
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
773
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
774 return sym;
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
775 }
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
776
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
777 // Insert the symbol in the current scope then resize and update
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
778 // offsets. This operation should never fail.
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
779
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
780 sym = scope.find_symbol (name);
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
781
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
782 assert (sym);
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
783
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
784 resize_and_update_script_offsets (sym);
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
785
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
786 return sym;
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
787 }
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
788
26663
fad3f19de1be don't fail if symbol in script can't be found (bug #55626)
John W. Eaton <jwe@octave.org>
parents: 26661
diff changeset
789 // Similar to set_script_offsets_internal except that we only return
fad3f19de1be don't fail if symbol in script can't be found (bug #55626)
John W. Eaton <jwe@octave.org>
parents: 26661
diff changeset
790 // frame and data offsets for symbols found by name in parent scopes
fad3f19de1be don't fail if symbol in script can't be found (bug #55626)
John W. Eaton <jwe@octave.org>
parents: 26661
diff changeset
791 // instead of updating the offsets stored in the script frame itself.
fad3f19de1be don't fail if symbol in script can't be found (bug #55626)
John W. Eaton <jwe@octave.org>
parents: 26661
diff changeset
792
fad3f19de1be don't fail if symbol in script can't be found (bug #55626)
John W. Eaton <jwe@octave.org>
parents: 26661
diff changeset
793 bool
fad3f19de1be don't fail if symbol in script can't be found (bug #55626)
John W. Eaton <jwe@octave.org>
parents: 26661
diff changeset
794 script_stack_frame::get_val_offsets_internal (const symbol_record& script_sr,
fad3f19de1be don't fail if symbol in script can't be found (bug #55626)
John W. Eaton <jwe@octave.org>
parents: 26661
diff changeset
795 size_t& frame_offset,
fad3f19de1be don't fail if symbol in script can't be found (bug #55626)
John W. Eaton <jwe@octave.org>
parents: 26661
diff changeset
796 size_t& data_offset) const
fad3f19de1be don't fail if symbol in script can't be found (bug #55626)
John W. Eaton <jwe@octave.org>
parents: 26661
diff changeset
797 {
fad3f19de1be don't fail if symbol in script can't be found (bug #55626)
John W. Eaton <jwe@octave.org>
parents: 26661
diff changeset
798 bool found = false;
fad3f19de1be don't fail if symbol in script can't be found (bug #55626)
John W. Eaton <jwe@octave.org>
parents: 26661
diff changeset
799
fad3f19de1be don't fail if symbol in script can't be found (bug #55626)
John W. Eaton <jwe@octave.org>
parents: 26661
diff changeset
800 // This scope will be used to evaluate the script. Find symbols
fad3f19de1be don't fail if symbol in script can't be found (bug #55626)
John W. Eaton <jwe@octave.org>
parents: 26661
diff changeset
801 // here by name.
fad3f19de1be don't fail if symbol in script can't be found (bug #55626)
John W. Eaton <jwe@octave.org>
parents: 26661
diff changeset
802
fad3f19de1be don't fail if symbol in script can't be found (bug #55626)
John W. Eaton <jwe@octave.org>
parents: 26661
diff changeset
803 symbol_scope eval_scope = m_access_link->get_scope ();
fad3f19de1be don't fail if symbol in script can't be found (bug #55626)
John W. Eaton <jwe@octave.org>
parents: 26661
diff changeset
804
fad3f19de1be don't fail if symbol in script can't be found (bug #55626)
John W. Eaton <jwe@octave.org>
parents: 26661
diff changeset
805 if (eval_scope.is_nested ())
fad3f19de1be don't fail if symbol in script can't be found (bug #55626)
John W. Eaton <jwe@octave.org>
parents: 26661
diff changeset
806 {
fad3f19de1be don't fail if symbol in script can't be found (bug #55626)
John W. Eaton <jwe@octave.org>
parents: 26661
diff changeset
807 std::string name = script_sr.name ();
fad3f19de1be don't fail if symbol in script can't be found (bug #55626)
John W. Eaton <jwe@octave.org>
parents: 26661
diff changeset
808
fad3f19de1be don't fail if symbol in script can't be found (bug #55626)
John W. Eaton <jwe@octave.org>
parents: 26661
diff changeset
809 symbol_scope parent_scope = eval_scope;
fad3f19de1be don't fail if symbol in script can't be found (bug #55626)
John W. Eaton <jwe@octave.org>
parents: 26661
diff changeset
810
fad3f19de1be don't fail if symbol in script can't be found (bug #55626)
John W. Eaton <jwe@octave.org>
parents: 26661
diff changeset
811 size_t count = 1;
fad3f19de1be don't fail if symbol in script can't be found (bug #55626)
John W. Eaton <jwe@octave.org>
parents: 26661
diff changeset
812
fad3f19de1be don't fail if symbol in script can't be found (bug #55626)
John W. Eaton <jwe@octave.org>
parents: 26661
diff changeset
813 while (parent_scope)
fad3f19de1be don't fail if symbol in script can't be found (bug #55626)
John W. Eaton <jwe@octave.org>
parents: 26661
diff changeset
814 {
fad3f19de1be don't fail if symbol in script can't be found (bug #55626)
John W. Eaton <jwe@octave.org>
parents: 26661
diff changeset
815 const std::map<std::string, symbol_record>& parent_scope_symbols
fad3f19de1be don't fail if symbol in script can't be found (bug #55626)
John W. Eaton <jwe@octave.org>
parents: 26661
diff changeset
816 = parent_scope.symbols ();
fad3f19de1be don't fail if symbol in script can't be found (bug #55626)
John W. Eaton <jwe@octave.org>
parents: 26661
diff changeset
817
fad3f19de1be don't fail if symbol in script can't be found (bug #55626)
John W. Eaton <jwe@octave.org>
parents: 26661
diff changeset
818 auto p = parent_scope_symbols.find (name);
fad3f19de1be don't fail if symbol in script can't be found (bug #55626)
John W. Eaton <jwe@octave.org>
parents: 26661
diff changeset
819
fad3f19de1be don't fail if symbol in script can't be found (bug #55626)
John W. Eaton <jwe@octave.org>
parents: 26661
diff changeset
820 if (p != parent_scope_symbols.end ())
fad3f19de1be don't fail if symbol in script can't be found (bug #55626)
John W. Eaton <jwe@octave.org>
parents: 26661
diff changeset
821 {
fad3f19de1be don't fail if symbol in script can't be found (bug #55626)
John W. Eaton <jwe@octave.org>
parents: 26661
diff changeset
822 found = true;
fad3f19de1be don't fail if symbol in script can't be found (bug #55626)
John W. Eaton <jwe@octave.org>
parents: 26661
diff changeset
823 symbol_record parent_scope_sr = p->second;
fad3f19de1be don't fail if symbol in script can't be found (bug #55626)
John W. Eaton <jwe@octave.org>
parents: 26661
diff changeset
824
fad3f19de1be don't fail if symbol in script can't be found (bug #55626)
John W. Eaton <jwe@octave.org>
parents: 26661
diff changeset
825 frame_offset = parent_scope_sr.frame_offset () + 1;
fad3f19de1be don't fail if symbol in script can't be found (bug #55626)
John W. Eaton <jwe@octave.org>
parents: 26661
diff changeset
826
fad3f19de1be don't fail if symbol in script can't be found (bug #55626)
John W. Eaton <jwe@octave.org>
parents: 26661
diff changeset
827 data_offset = parent_scope_sr.data_offset ();
fad3f19de1be don't fail if symbol in script can't be found (bug #55626)
John W. Eaton <jwe@octave.org>
parents: 26661
diff changeset
828
fad3f19de1be don't fail if symbol in script can't be found (bug #55626)
John W. Eaton <jwe@octave.org>
parents: 26661
diff changeset
829 break;
fad3f19de1be don't fail if symbol in script can't be found (bug #55626)
John W. Eaton <jwe@octave.org>
parents: 26661
diff changeset
830 }
fad3f19de1be don't fail if symbol in script can't be found (bug #55626)
John W. Eaton <jwe@octave.org>
parents: 26661
diff changeset
831 else
fad3f19de1be don't fail if symbol in script can't be found (bug #55626)
John W. Eaton <jwe@octave.org>
parents: 26661
diff changeset
832 {
fad3f19de1be don't fail if symbol in script can't be found (bug #55626)
John W. Eaton <jwe@octave.org>
parents: 26661
diff changeset
833 count++;
fad3f19de1be don't fail if symbol in script can't be found (bug #55626)
John W. Eaton <jwe@octave.org>
parents: 26661
diff changeset
834 parent_scope = parent_scope.parent_scope ();
fad3f19de1be don't fail if symbol in script can't be found (bug #55626)
John W. Eaton <jwe@octave.org>
parents: 26661
diff changeset
835 }
fad3f19de1be don't fail if symbol in script can't be found (bug #55626)
John W. Eaton <jwe@octave.org>
parents: 26661
diff changeset
836 }
fad3f19de1be don't fail if symbol in script can't be found (bug #55626)
John W. Eaton <jwe@octave.org>
parents: 26661
diff changeset
837 }
fad3f19de1be don't fail if symbol in script can't be found (bug #55626)
John W. Eaton <jwe@octave.org>
parents: 26661
diff changeset
838 else
fad3f19de1be don't fail if symbol in script can't be found (bug #55626)
John W. Eaton <jwe@octave.org>
parents: 26661
diff changeset
839 {
fad3f19de1be don't fail if symbol in script can't be found (bug #55626)
John W. Eaton <jwe@octave.org>
parents: 26661
diff changeset
840 const std::map<std::string, symbol_record>& eval_scope_symbols
fad3f19de1be don't fail if symbol in script can't be found (bug #55626)
John W. Eaton <jwe@octave.org>
parents: 26661
diff changeset
841 = eval_scope.symbols ();
fad3f19de1be don't fail if symbol in script can't be found (bug #55626)
John W. Eaton <jwe@octave.org>
parents: 26661
diff changeset
842
fad3f19de1be don't fail if symbol in script can't be found (bug #55626)
John W. Eaton <jwe@octave.org>
parents: 26661
diff changeset
843 std::string name = script_sr.name ();
fad3f19de1be don't fail if symbol in script can't be found (bug #55626)
John W. Eaton <jwe@octave.org>
parents: 26661
diff changeset
844
fad3f19de1be don't fail if symbol in script can't be found (bug #55626)
John W. Eaton <jwe@octave.org>
parents: 26661
diff changeset
845 auto p = eval_scope_symbols.find (name);
fad3f19de1be don't fail if symbol in script can't be found (bug #55626)
John W. Eaton <jwe@octave.org>
parents: 26661
diff changeset
846
fad3f19de1be don't fail if symbol in script can't be found (bug #55626)
John W. Eaton <jwe@octave.org>
parents: 26661
diff changeset
847 symbol_record eval_scope_sr;
fad3f19de1be don't fail if symbol in script can't be found (bug #55626)
John W. Eaton <jwe@octave.org>
parents: 26661
diff changeset
848
fad3f19de1be don't fail if symbol in script can't be found (bug #55626)
John W. Eaton <jwe@octave.org>
parents: 26661
diff changeset
849 if (p != eval_scope_symbols.end ())
fad3f19de1be don't fail if symbol in script can't be found (bug #55626)
John W. Eaton <jwe@octave.org>
parents: 26661
diff changeset
850 {
fad3f19de1be don't fail if symbol in script can't be found (bug #55626)
John W. Eaton <jwe@octave.org>
parents: 26661
diff changeset
851 found = true;
fad3f19de1be don't fail if symbol in script can't be found (bug #55626)
John W. Eaton <jwe@octave.org>
parents: 26661
diff changeset
852 eval_scope_sr = p->second;
fad3f19de1be don't fail if symbol in script can't be found (bug #55626)
John W. Eaton <jwe@octave.org>
parents: 26661
diff changeset
853
fad3f19de1be don't fail if symbol in script can't be found (bug #55626)
John W. Eaton <jwe@octave.org>
parents: 26661
diff changeset
854 // The +1 is for going from the script frame to the eval
fad3f19de1be don't fail if symbol in script can't be found (bug #55626)
John W. Eaton <jwe@octave.org>
parents: 26661
diff changeset
855 // frame. Only one access_link should need to be followed.
fad3f19de1be don't fail if symbol in script can't be found (bug #55626)
John W. Eaton <jwe@octave.org>
parents: 26661
diff changeset
856
fad3f19de1be don't fail if symbol in script can't be found (bug #55626)
John W. Eaton <jwe@octave.org>
parents: 26661
diff changeset
857 frame_offset = eval_scope_sr.frame_offset () + 1;
fad3f19de1be don't fail if symbol in script can't be found (bug #55626)
John W. Eaton <jwe@octave.org>
parents: 26661
diff changeset
858
fad3f19de1be don't fail if symbol in script can't be found (bug #55626)
John W. Eaton <jwe@octave.org>
parents: 26661
diff changeset
859 data_offset = eval_scope_sr.data_offset ();
fad3f19de1be don't fail if symbol in script can't be found (bug #55626)
John W. Eaton <jwe@octave.org>
parents: 26661
diff changeset
860 }
fad3f19de1be don't fail if symbol in script can't be found (bug #55626)
John W. Eaton <jwe@octave.org>
parents: 26661
diff changeset
861 }
fad3f19de1be don't fail if symbol in script can't be found (bug #55626)
John W. Eaton <jwe@octave.org>
parents: 26661
diff changeset
862
fad3f19de1be don't fail if symbol in script can't be found (bug #55626)
John W. Eaton <jwe@octave.org>
parents: 26661
diff changeset
863 return found;
fad3f19de1be don't fail if symbol in script can't be found (bug #55626)
John W. Eaton <jwe@octave.org>
parents: 26661
diff changeset
864 }
fad3f19de1be don't fail if symbol in script can't be found (bug #55626)
John W. Eaton <jwe@octave.org>
parents: 26661
diff changeset
865
fad3f19de1be don't fail if symbol in script can't be found (bug #55626)
John W. Eaton <jwe@octave.org>
parents: 26661
diff changeset
866 bool script_stack_frame::get_val_offsets (const symbol_record& sym,
26661
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
867 size_t& frame_offset,
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
868 size_t& data_offset) const
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
869 {
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
870 data_offset = sym.data_offset ();
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
871 frame_offset = sym.frame_offset ();
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
872
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
873 if (frame_offset == 0)
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
874 {
26663
fad3f19de1be don't fail if symbol in script can't be found (bug #55626)
John W. Eaton <jwe@octave.org>
parents: 26661
diff changeset
875 // An out of range data_offset value here means that we have a
fad3f19de1be don't fail if symbol in script can't be found (bug #55626)
John W. Eaton <jwe@octave.org>
parents: 26661
diff changeset
876 // symbol that was not originally in the script. But this
fad3f19de1be don't fail if symbol in script can't be found (bug #55626)
John W. Eaton <jwe@octave.org>
parents: 26661
diff changeset
877 // function is called in places where we can't insert a new
fad3f19de1be don't fail if symbol in script can't be found (bug #55626)
John W. Eaton <jwe@octave.org>
parents: 26661
diff changeset
878 // symbol, so we fail and it is up to the caller to decide what
fad3f19de1be don't fail if symbol in script can't be found (bug #55626)
John W. Eaton <jwe@octave.org>
parents: 26661
diff changeset
879 // to do.
26661
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
880
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
881 if (data_offset >= size ())
26663
fad3f19de1be don't fail if symbol in script can't be found (bug #55626)
John W. Eaton <jwe@octave.org>
parents: 26661
diff changeset
882 return get_val_offsets_internal (sym, frame_offset, data_offset);
26661
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
883
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
884 // Use frame and value offsets stored in this stack frame,
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
885 // indexed by data_offset from the symbol_record to find the
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
886 // values. These offsets were determined by
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
887 // script_stack_frame::set_script_offsets when this script was
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
888 // invoked.
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
889
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
890 frame_offset = m_lexical_frame_offsets.at (data_offset);
27149
61226b7bd6b9 fix calculation of value offsets for variables added to script scopes
John W. Eaton <jwe@octave.org>
parents: 27037
diff changeset
891
61226b7bd6b9 fix calculation of value offsets for variables added to script scopes
John W. Eaton <jwe@octave.org>
parents: 27037
diff changeset
892 if (frame_offset == 0)
61226b7bd6b9 fix calculation of value offsets for variables added to script scopes
John W. Eaton <jwe@octave.org>
parents: 27037
diff changeset
893 {
61226b7bd6b9 fix calculation of value offsets for variables added to script scopes
John W. Eaton <jwe@octave.org>
parents: 27037
diff changeset
894 // If the frame offset stored in m_lexical_frame_offsets is
61226b7bd6b9 fix calculation of value offsets for variables added to script scopes
John W. Eaton <jwe@octave.org>
parents: 27037
diff changeset
895 // zero, then the data offset in the evaluation scope has
61226b7bd6b9 fix calculation of value offsets for variables added to script scopes
John W. Eaton <jwe@octave.org>
parents: 27037
diff changeset
896 // not been determined so try to do that now. The symbol
61226b7bd6b9 fix calculation of value offsets for variables added to script scopes
John W. Eaton <jwe@octave.org>
parents: 27037
diff changeset
897 // may have been added by eval and without calling
61226b7bd6b9 fix calculation of value offsets for variables added to script scopes
John W. Eaton <jwe@octave.org>
parents: 27037
diff changeset
898 // resize_and_update_script_offsets.
61226b7bd6b9 fix calculation of value offsets for variables added to script scopes
John W. Eaton <jwe@octave.org>
parents: 27037
diff changeset
899
61226b7bd6b9 fix calculation of value offsets for variables added to script scopes
John W. Eaton <jwe@octave.org>
parents: 27037
diff changeset
900 return get_val_offsets_internal (sym, frame_offset, data_offset);
61226b7bd6b9 fix calculation of value offsets for variables added to script scopes
John W. Eaton <jwe@octave.org>
parents: 27037
diff changeset
901 }
61226b7bd6b9 fix calculation of value offsets for variables added to script scopes
John W. Eaton <jwe@octave.org>
parents: 27037
diff changeset
902
26661
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
903 data_offset = m_value_offsets.at (data_offset);
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
904 }
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
905 else
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
906 {
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
907 // If frame_offset is not zero, then then we must have a symbol
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
908 // that was not originally in the script. The values should
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
909 // have been determined by the script_stack_frame::lookup function.
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
910 }
26663
fad3f19de1be don't fail if symbol in script can't be found (bug #55626)
John W. Eaton <jwe@octave.org>
parents: 26661
diff changeset
911
fad3f19de1be don't fail if symbol in script can't be found (bug #55626)
John W. Eaton <jwe@octave.org>
parents: 26661
diff changeset
912 return true;
26661
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
913 }
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
914
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
915 void script_stack_frame::get_val_offsets_with_insert (const symbol_record& sym,
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
916 size_t& frame_offset,
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
917 size_t& data_offset)
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
918 {
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
919 data_offset = sym.data_offset ();
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
920 frame_offset = sym.frame_offset ();
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
921
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
922 if (frame_offset == 0)
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
923 {
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
924 if (data_offset >= size ())
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
925 {
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
926 // If the data_offset is out of range, then we must have a
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
927 // symbol that was not originally in the script. Resize and
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
928 // update the offsets.
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
929
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
930 resize_and_update_script_offsets (sym);
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
931 }
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
932
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
933 // Use frame and value offsets stored in this stack frame,
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
934 // indexed by data_offset from the symbol_record to find the
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
935 // values. These offsets were determined by
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
936 // script_stack_frame::set_script_offsets when this script was
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
937 // invoked.
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
938
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
939 frame_offset = m_lexical_frame_offsets.at (data_offset);
27149
61226b7bd6b9 fix calculation of value offsets for variables added to script scopes
John W. Eaton <jwe@octave.org>
parents: 27037
diff changeset
940
61226b7bd6b9 fix calculation of value offsets for variables added to script scopes
John W. Eaton <jwe@octave.org>
parents: 27037
diff changeset
941 if (frame_offset == 0)
61226b7bd6b9 fix calculation of value offsets for variables added to script scopes
John W. Eaton <jwe@octave.org>
parents: 27037
diff changeset
942 {
61226b7bd6b9 fix calculation of value offsets for variables added to script scopes
John W. Eaton <jwe@octave.org>
parents: 27037
diff changeset
943 // If the frame offset stored in m_lexical_frame_offsets is
61226b7bd6b9 fix calculation of value offsets for variables added to script scopes
John W. Eaton <jwe@octave.org>
parents: 27037
diff changeset
944 // zero, then the data offset in the evaluation scope has
61226b7bd6b9 fix calculation of value offsets for variables added to script scopes
John W. Eaton <jwe@octave.org>
parents: 27037
diff changeset
945 // not been determined so try to do that now. The symbol
61226b7bd6b9 fix calculation of value offsets for variables added to script scopes
John W. Eaton <jwe@octave.org>
parents: 27037
diff changeset
946 // may have been added by eval and without calling
61226b7bd6b9 fix calculation of value offsets for variables added to script scopes
John W. Eaton <jwe@octave.org>
parents: 27037
diff changeset
947 // resize_and_update_script_offsets.
61226b7bd6b9 fix calculation of value offsets for variables added to script scopes
John W. Eaton <jwe@octave.org>
parents: 27037
diff changeset
948
61226b7bd6b9 fix calculation of value offsets for variables added to script scopes
John W. Eaton <jwe@octave.org>
parents: 27037
diff changeset
949 // We don't need to resize here. That case is handled above.
61226b7bd6b9 fix calculation of value offsets for variables added to script scopes
John W. Eaton <jwe@octave.org>
parents: 27037
diff changeset
950
61226b7bd6b9 fix calculation of value offsets for variables added to script scopes
John W. Eaton <jwe@octave.org>
parents: 27037
diff changeset
951 // FIXME: We should be able to avoid creating the map object
61226b7bd6b9 fix calculation of value offsets for variables added to script scopes
John W. Eaton <jwe@octave.org>
parents: 27037
diff changeset
952 // and the looping in the set_scripts_offsets_internal
61226b7bd6b9 fix calculation of value offsets for variables added to script scopes
John W. Eaton <jwe@octave.org>
parents: 27037
diff changeset
953 // function. Can we do that without (or with minimal) code
61226b7bd6b9 fix calculation of value offsets for variables added to script scopes
John W. Eaton <jwe@octave.org>
parents: 27037
diff changeset
954 // duplication?
61226b7bd6b9 fix calculation of value offsets for variables added to script scopes
John W. Eaton <jwe@octave.org>
parents: 27037
diff changeset
955
61226b7bd6b9 fix calculation of value offsets for variables added to script scopes
John W. Eaton <jwe@octave.org>
parents: 27037
diff changeset
956 std::map<std::string, symbol_record> tmp_symbols;
61226b7bd6b9 fix calculation of value offsets for variables added to script scopes
John W. Eaton <jwe@octave.org>
parents: 27037
diff changeset
957 tmp_symbols[sym.name ()] = sym;
61226b7bd6b9 fix calculation of value offsets for variables added to script scopes
John W. Eaton <jwe@octave.org>
parents: 27037
diff changeset
958 set_script_offsets_internal (tmp_symbols);
61226b7bd6b9 fix calculation of value offsets for variables added to script scopes
John W. Eaton <jwe@octave.org>
parents: 27037
diff changeset
959 }
61226b7bd6b9 fix calculation of value offsets for variables added to script scopes
John W. Eaton <jwe@octave.org>
parents: 27037
diff changeset
960
26661
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
961 data_offset = m_value_offsets.at (data_offset);
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
962 }
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
963 else
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
964 {
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
965 // If frame_offset is not zero, then then we must have a symbol
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
966 // that was not originally in the script. The values were
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
967 // determined by the script_stack_frame::lookup function.
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
968 }
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
969 }
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
970
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
971 stack_frame::scope_flags
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
972 script_stack_frame::scope_flag (const symbol_record& sym) const
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
973 {
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
974 size_t frame_offset;
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
975 size_t data_offset;
26663
fad3f19de1be don't fail if symbol in script can't be found (bug #55626)
John W. Eaton <jwe@octave.org>
parents: 26661
diff changeset
976
fad3f19de1be don't fail if symbol in script can't be found (bug #55626)
John W. Eaton <jwe@octave.org>
parents: 26661
diff changeset
977 bool found = get_val_offsets (sym, frame_offset, data_offset);
fad3f19de1be don't fail if symbol in script can't be found (bug #55626)
John W. Eaton <jwe@octave.org>
parents: 26661
diff changeset
978
fad3f19de1be don't fail if symbol in script can't be found (bug #55626)
John W. Eaton <jwe@octave.org>
parents: 26661
diff changeset
979 // It can't be global or persistent, so call it local.
fad3f19de1be don't fail if symbol in script can't be found (bug #55626)
John W. Eaton <jwe@octave.org>
parents: 26661
diff changeset
980 if (! found)
fad3f19de1be don't fail if symbol in script can't be found (bug #55626)
John W. Eaton <jwe@octave.org>
parents: 26661
diff changeset
981 return LOCAL;
26661
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
982
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
983 // Follow frame_offset access links to stack frame that holds
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
984 // the value.
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
985
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
986 const stack_frame *frame = this;
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
987
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
988 for (size_t i = 0; i < frame_offset; i++)
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
989 frame = frame->access_link ();
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
990
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
991 if (! frame)
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
992 error ("internal error: invalid access link in function call stack");
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
993
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
994 if (data_offset >= frame->size ())
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
995 return LOCAL;
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
996
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
997 return frame->get_scope_flag (data_offset);
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
998 }
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
999
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1000 octave_value script_stack_frame::varval (const symbol_record& sym) const
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1001 {
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1002 size_t frame_offset;
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1003 size_t data_offset;
26663
fad3f19de1be don't fail if symbol in script can't be found (bug #55626)
John W. Eaton <jwe@octave.org>
parents: 26661
diff changeset
1004
fad3f19de1be don't fail if symbol in script can't be found (bug #55626)
John W. Eaton <jwe@octave.org>
parents: 26661
diff changeset
1005 bool found = get_val_offsets (sym, frame_offset, data_offset);
fad3f19de1be don't fail if symbol in script can't be found (bug #55626)
John W. Eaton <jwe@octave.org>
parents: 26661
diff changeset
1006
fad3f19de1be don't fail if symbol in script can't be found (bug #55626)
John W. Eaton <jwe@octave.org>
parents: 26661
diff changeset
1007 if (! found)
fad3f19de1be don't fail if symbol in script can't be found (bug #55626)
John W. Eaton <jwe@octave.org>
parents: 26661
diff changeset
1008 return octave_value ();
26661
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1009
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1010 // Follow frame_offset access links to stack frame that holds
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1011 // the value.
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1012
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1013 const stack_frame *frame = this;
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1014
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1015 for (size_t i = 0; i < frame_offset; i++)
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1016 frame = frame->access_link ();
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1017
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1018 if (! frame)
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1019 error ("internal error: invalid access link in function call stack");
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1020
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1021 if (data_offset >= frame->size ())
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1022 return octave_value ();
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1023
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1024 switch (frame->get_scope_flag (data_offset))
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1025 {
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1026 case LOCAL:
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1027 return frame->varval (data_offset);
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1028
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1029 case PERSISTENT:
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1030 {
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1031 symbol_scope scope = frame->get_scope ();
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1032
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1033 return scope.persistent_varval (data_offset);
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1034 }
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1035
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1036 case GLOBAL:
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1037 return m_call_stack.global_varval (sym.name ());
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1038 }
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1039
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1040 error ("internal error: invalid switch case");
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1041 }
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1042
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1043 octave_value& script_stack_frame::varref (const symbol_record& sym)
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1044 {
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1045 size_t frame_offset;
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1046 size_t data_offset;
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1047 get_val_offsets_with_insert (sym, frame_offset, data_offset);
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1048
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1049 // Follow frame_offset access links to stack frame that holds
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1050 // the value.
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1051
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1052 stack_frame *frame = this;
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1053
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1054 for (size_t i = 0; i < frame_offset; i++)
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1055 frame = frame->access_link ();
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1056
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1057 if (data_offset >= frame->size ())
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1058 frame->resize (data_offset+1);
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1059
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1060 switch (frame->get_scope_flag (data_offset))
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1061 {
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1062 case LOCAL:
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1063 return frame->varref (data_offset);
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1064
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1065 case PERSISTENT:
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1066 {
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1067 symbol_scope scope = frame->get_scope ();
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1068
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1069 return scope.persistent_varref (data_offset);
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1070 }
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1071
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1072 case GLOBAL:
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1073 return m_call_stack.global_varref (sym.name ());
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1074 }
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1075
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1076 error ("internal error: invalid switch case");
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1077 }
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1078
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1079 void script_stack_frame::mark_scope (const symbol_record& sym,
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1080 scope_flags flag)
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1081 {
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1082 size_t data_offset = sym.data_offset ();
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1083
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1084 // Redirection to evaluation context for the script.
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1085
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1086 size_t frame_offset = m_lexical_frame_offsets.at (data_offset);
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1087 data_offset = m_value_offsets.at (data_offset);
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1088
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1089 if (frame_offset > 1)
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1090 error ("variables must be made PERSISTENT or GLOBAL in the first scope in which they are used");
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1091
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1092 stack_frame *frame = access_link ();
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1093
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1094 if (data_offset >= frame->size ())
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1095 frame->resize (data_offset+1);
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1096
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1097 frame->set_scope_flag (data_offset, flag);
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1098 }
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1099
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1100 void script_stack_frame::display (bool follow) const
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1101 {
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1102 std::ostream& os = octave_stdout;
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1103
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1104 os << "-- [script_stack_frame] (" << this << ") --" << std::endl;
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1105 stack_frame::display (follow);
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1106
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1107 os << "script: " << m_script->name ()
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1108 << " (" << m_script->type_name () << ")" << std::endl;
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1109
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1110 os << "lexical_offsets: " << m_lexical_frame_offsets.size ()
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1111 << " elements:";
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1112
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1113 for (size_t i = 0; i < m_lexical_frame_offsets.size (); i++)
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1114 os << " " << m_lexical_frame_offsets.at (i);
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1115 os << std::endl;
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1116
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1117 os << "value_offsets: " << m_value_offsets.size () << " elements:";
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1118 for (size_t i = 0; i < m_value_offsets.size (); i++)
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1119 os << " " << m_value_offsets.at (i);
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1120 os << std::endl;
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1121
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1122 display_scope (os, get_scope ());
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1123 }
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1124
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1125 void script_stack_frame::accept (stack_frame_walker& sfw)
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1126 {
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1127 sfw.visit_script_stack_frame (*this);
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1128 }
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1129
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1130 void base_value_stack_frame::display (bool follow) const
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1131 {
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1132 std::ostream& os = octave_stdout;
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1133
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1134 os << "-- [base_value_stack_frame] (" << this << ") --" << std::endl;
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1135 stack_frame::display (follow);
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1136
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1137 os << "values: " << m_values.size ()
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1138 << " elements (idx, scope flag, type):" << std::endl;
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1139
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1140 for (size_t i = 0; i < m_values.size (); i++)
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1141 {
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1142 os << " (" << i << ", " << m_flags.at (i) << ", ";
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1143
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1144 octave_value val = varval (i);
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1145
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1146 os << (val.is_defined () ? val.type_name () : " UNDEFINED") << ")"
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1147 << std::endl;
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1148 }
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1149 }
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1150
26824
d9770844392e provide virtual dup methods for stack frames
John W. Eaton <jwe@octave.org>
parents: 26673
diff changeset
1151 user_fcn_stack_frame *
d9770844392e provide virtual dup methods for stack frames
John W. Eaton <jwe@octave.org>
parents: 26673
diff changeset
1152 user_fcn_stack_frame::dup (void) const
d9770844392e provide virtual dup methods for stack frames
John W. Eaton <jwe@octave.org>
parents: 26673
diff changeset
1153 {
d9770844392e provide virtual dup methods for stack frames
John W. Eaton <jwe@octave.org>
parents: 26673
diff changeset
1154 return new user_fcn_stack_frame (*this);
d9770844392e provide virtual dup methods for stack frames
John W. Eaton <jwe@octave.org>
parents: 26673
diff changeset
1155 }
d9770844392e provide virtual dup methods for stack frames
John W. Eaton <jwe@octave.org>
parents: 26673
diff changeset
1156
26661
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1157 // If this is a nested scope, set access_link to nearest parent
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1158 // stack frame that corresponds to the lexical parent of this scope.
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1159
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1160 stack_frame *
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1161 user_fcn_stack_frame::get_access_link (octave_user_function *fcn,
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1162 stack_frame *static_link)
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1163 {
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1164 stack_frame *alink = nullptr;
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1165
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1166 symbol_scope fcn_scope = fcn->scope ();
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1167
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1168 if (fcn_scope.is_nested ())
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1169 {
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1170 if (! static_link)
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1171 error ("internal call stack error (invalid static link)");
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1172
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1173 symbol_scope caller_scope = static_link->get_scope ();
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1174
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1175 int nesting_depth = fcn_scope.nesting_depth ();
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1176 int caller_nesting_depth = caller_scope.nesting_depth ();
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1177
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1178 if (caller_nesting_depth < nesting_depth)
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1179 {
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1180 // FIXME: do we need to ensure that the called
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1181 // function is a child of the caller? Does it hurt
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1182 // to assert this condition, at least for now?
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1183
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1184 alink = static_link;
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1185 }
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1186 else
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1187 {
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1188 // FIXME: do we need to check that the parent of the
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1189 // called function is also a parent of the caller?
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1190 // Does it hurt to assert this condition, at least
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1191 // for now?
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1192
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1193 int links_to_follow = caller_nesting_depth - nesting_depth + 1;
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1194
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1195 alink = static_link;
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1196
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1197 while (alink && --links_to_follow >= 0)
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1198 alink = alink->access_link ();
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1199
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1200 if (! alink)
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1201 error ("internal function nesting error (invalid access link)");
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1202 }
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1203 }
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1204
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1205 return alink;
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1206 }
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1207
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1208 void user_fcn_stack_frame::clear_values (void)
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1209 {
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1210 symbol_scope fcn_scope = m_fcn->scope ();
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1211
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1212 const std::list<symbol_record>& symbols = fcn_scope.symbol_list ();
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1213
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1214 if (size () == 0)
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1215 return;
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1216
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1217 for (const auto& sym : symbols)
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1218 {
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1219 size_t frame_offset = sym.frame_offset ();
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1220
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1221 if (frame_offset > 0)
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1222 continue;
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1223
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1224 size_t data_offset = sym.data_offset ();
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1225
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1226 if (data_offset >= size ())
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1227 continue;
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1228
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1229 if (get_scope_flag (data_offset) == LOCAL)
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1230 {
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1231 octave_value& ref = m_values.at (data_offset);
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1232
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1233 if (ref.get_count () == 1)
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1234 {
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1235 ref.call_object_destructor ();
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1236 ref = octave_value ();
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1237 }
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1238 }
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1239 }
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1240 }
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1241
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1242 symbol_record user_fcn_stack_frame::lookup_symbol (const std::string& name) const
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1243 {
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1244 const stack_frame *frame = this;
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1245
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1246 while (frame)
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1247 {
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1248 symbol_scope scope = frame->get_scope ();
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1249
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1250 symbol_record sym = scope.lookup_symbol (name);
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1251
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1252 if (sym)
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1253 return sym;
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1254
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1255 frame = frame->access_link ();
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1256 }
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1257
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1258 return symbol_record ();
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1259 }
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1260
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1261 symbol_record user_fcn_stack_frame::insert_symbol (const std::string& name)
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1262 {
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1263 // If the symbols is already in the immediate scope, there is
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1264 // nothing more to do.
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1265
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1266 symbol_scope scope = get_scope ();
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1267
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1268 symbol_record sym = scope.lookup_symbol (name);
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1269
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1270 if (sym)
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1271 return sym;
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1272
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1273 // FIXME: This needs some thought... We may need to add a symbol to
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1274 // a static workspace, but the symbol can never be defined as a
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1275 // variable. This currently works by tagging the added symbol as
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1276 // "added_static". Aside from the bad name, this doesn't seem like
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1277 // the best solution. Maybe scopes should have a separate set of
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1278 // symbols that may only be defined as functions?
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1279
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1280 // Insert the symbol in the current scope. This is not possible for
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1281 // anonymous functions, nested functions, or functions that contain
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1282 // nested functions (their scopes will all be marked static).
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1283
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1284 // if (scope.is_static ())
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1285 // error ("can not add variable '%s' to a static workspace",
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1286 // name.c_str ());
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1287
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1288 // At this point, non-local references are not possible so we only
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1289 // need to look in the current scope and insert there. This
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1290 // operation should never fail.
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1291
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1292 sym = scope.find_symbol (name);
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1293
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1294 assert (sym);
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1295
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1296 return sym;
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1297 }
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1298
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1299 stack_frame::scope_flags
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1300 user_fcn_stack_frame::scope_flag (const symbol_record& sym) const
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1301 {
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1302 size_t frame_offset = sym.frame_offset ();
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1303 size_t data_offset = sym.data_offset ();
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1304
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1305 // Follow frame_offset access links to stack frame that holds
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1306 // the value.
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1307
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1308 const stack_frame *frame = this;
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1309
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1310 for (size_t i = 0; i < frame_offset; i++)
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1311 frame = frame->access_link ();
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1312
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1313 if (! frame)
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1314 error ("internal error: invalid access link in function call stack");
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1315
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1316 if (data_offset >= frame->size ())
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1317 return LOCAL;
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1318
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1319 return frame->get_scope_flag (data_offset);
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1320 }
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1321
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1322 octave_value user_fcn_stack_frame::varval (const symbol_record& sym) const
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1323 {
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1324 size_t frame_offset = sym.frame_offset ();
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1325 size_t data_offset = sym.data_offset ();
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1326
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1327 // Follow frame_offset access links to stack frame that holds
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1328 // the value.
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1329
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1330 const stack_frame *frame = this;
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1331
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1332 for (size_t i = 0; i < frame_offset; i++)
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1333 frame = frame->access_link ();
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1334
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1335 if (! frame)
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1336 error ("internal error: invalid access link in function call stack");
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1337
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1338 if (data_offset >= frame->size ())
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1339 return octave_value ();
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1340
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1341 switch (frame->get_scope_flag (data_offset))
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1342 {
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1343 case LOCAL:
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1344 return frame->varval (data_offset);
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1345
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1346 case PERSISTENT:
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1347 {
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1348 symbol_scope scope = frame->get_scope ();
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1349
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1350 return scope.persistent_varval (data_offset);
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1351 }
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1352
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1353 case GLOBAL:
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1354 return m_call_stack.global_varval (sym.name ());
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1355 }
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1356
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1357 error ("internal error: invalid switch case");
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1358 }
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1359
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1360 octave_value& user_fcn_stack_frame::varref (const symbol_record& sym)
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1361 {
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1362 size_t frame_offset = sym.frame_offset ();
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1363 size_t data_offset = sym.data_offset ();
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1364
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1365 // Follow frame_offset access links to stack frame that holds
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1366 // the value.
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1367
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1368 stack_frame *frame = this;
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1369
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1370 for (size_t i = 0; i < frame_offset; i++)
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1371 frame = frame->access_link ();
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1372
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1373 if (data_offset >= frame->size ())
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1374 frame->resize (data_offset+1);
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1375
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1376 switch (frame->get_scope_flag (data_offset))
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1377 {
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1378 case LOCAL:
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1379 return frame->varref (data_offset);
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1380
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1381 case PERSISTENT:
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1382 {
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1383 symbol_scope scope = frame->get_scope ();
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1384
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1385 return scope.persistent_varref (data_offset);
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1386 }
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1387
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1388 case GLOBAL:
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1389 return m_call_stack.global_varref (sym.name ());
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1390 }
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1391
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1392 error ("internal error: invalid switch case");
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1393 }
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1394
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1395 void user_fcn_stack_frame::mark_scope (const symbol_record& sym, scope_flags flag)
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1396 {
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1397 size_t frame_offset = sym.frame_offset ();
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1398
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1399 if (frame_offset > 0 && (flag == PERSISTENT || flag == GLOBAL))
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1400 error ("variables must be made PERSISTENT or GLOBAL in the first scope in which they are used");
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1401
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1402 size_t data_offset = sym.data_offset ();
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1403
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1404 if (data_offset >= size ())
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1405 resize (data_offset+1);
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1406
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1407 set_scope_flag (data_offset, flag);
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1408 }
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1409
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1410 void user_fcn_stack_frame::display (bool follow) const
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1411 {
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1412 std::ostream& os = octave_stdout;
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1413
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1414 os << "-- [user_fcn_stack_frame] (" << this << ") --" << std::endl;
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1415 base_value_stack_frame::display (follow);
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1416
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1417 os << "fcn: " << m_fcn->name ()
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1418 << " (" << m_fcn->type_name () << ")" << std::endl;
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1419
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1420 display_scope (os, get_scope ());
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1421 }
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1422
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1423 void user_fcn_stack_frame::accept (stack_frame_walker& sfw)
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1424 {
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1425 sfw.visit_user_fcn_stack_frame (*this);
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1426 }
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1427
26824
d9770844392e provide virtual dup methods for stack frames
John W. Eaton <jwe@octave.org>
parents: 26673
diff changeset
1428 scope_stack_frame *
d9770844392e provide virtual dup methods for stack frames
John W. Eaton <jwe@octave.org>
parents: 26673
diff changeset
1429 scope_stack_frame::dup (void) const
d9770844392e provide virtual dup methods for stack frames
John W. Eaton <jwe@octave.org>
parents: 26673
diff changeset
1430 {
d9770844392e provide virtual dup methods for stack frames
John W. Eaton <jwe@octave.org>
parents: 26673
diff changeset
1431 return new scope_stack_frame (*this);
d9770844392e provide virtual dup methods for stack frames
John W. Eaton <jwe@octave.org>
parents: 26673
diff changeset
1432 }
d9770844392e provide virtual dup methods for stack frames
John W. Eaton <jwe@octave.org>
parents: 26673
diff changeset
1433
26661
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1434 symbol_record scope_stack_frame::insert_symbol (const std::string& name)
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1435 {
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1436 // There is no access link for scope frames, so there is no other
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1437 // frame to search in and the offset must be zero.
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1438
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1439 symbol_record sym = m_scope.lookup_symbol (name);
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1440
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1441 if (sym)
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1442 return sym;
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1443
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1444 // If the symbol is not found, insert it. We only need to search in
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1445 // the local scope object. This operation should never fail.
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1446
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1447 sym = m_scope.find_symbol (name);
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1448
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1449 assert (sym);
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1450
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1451 return sym;
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1452 }
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1453
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1454 stack_frame::scope_flags
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1455 scope_stack_frame::scope_flag (const symbol_record& sym) const
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1456 {
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1457 // There is no access link for scope frames, so the frame
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1458 // offset must be zero.
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1459
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1460 size_t data_offset = sym.data_offset ();
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1461
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1462 if (data_offset >= size ())
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1463 return LOCAL;
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1464
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1465 return get_scope_flag (data_offset);
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1466 }
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1467
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1468 octave_value scope_stack_frame::varval (const symbol_record& sym) const
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1469 {
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1470 // There is no access link for scope frames, so the frame
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1471 // offset must be zero.
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1472
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1473 size_t data_offset = sym.data_offset ();
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1474
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1475 if (data_offset >= size ())
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1476 return octave_value ();
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1477
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1478 switch (get_scope_flag (data_offset))
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1479 {
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1480 case LOCAL:
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1481 return m_values.at (data_offset);
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1482
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1483 case PERSISTENT:
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1484 return m_scope.persistent_varval (data_offset);
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1485
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1486 case GLOBAL:
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1487 return m_call_stack.global_varval (sym.name ());
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1488 }
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1489
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1490 error ("internal error: invalid switch case");
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1491 }
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1492
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1493 octave_value& scope_stack_frame::varref (const symbol_record& sym)
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1494 {
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1495 // There is no access link for scope frames, so the frame
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1496 // offset must be zero.
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1497
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1498 size_t data_offset = sym.data_offset ();
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1499
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1500 if (data_offset >= size ())
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1501 resize (data_offset+1);
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1502
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1503 switch (get_scope_flag (data_offset))
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1504 {
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1505 case LOCAL:
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1506 return m_values.at (data_offset);
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1507
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1508 case PERSISTENT:
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1509 return m_scope.persistent_varref (data_offset);
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1510
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1511 case GLOBAL:
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1512 return m_call_stack.global_varref (sym.name ());
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1513 }
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1514
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1515 error ("internal error: invalid switch case");
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1516 }
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1517
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1518 void scope_stack_frame::mark_scope (const symbol_record& sym,
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1519 scope_flags flag)
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1520 {
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1521 // There is no access link for scope frames, so the frame
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1522 // offset must be zero.
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1523
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1524 size_t data_offset = sym.data_offset ();
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1525
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1526 if (data_offset >= size ())
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1527 resize (data_offset+1);
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1528
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1529 set_scope_flag (data_offset, flag);
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1530 }
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1531
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1532 void scope_stack_frame::display (bool follow) const
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1533 {
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1534 std::ostream& os = octave_stdout;
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1535
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1536 os << "-- [scope_stack_frame] (" << this << ") --" << std::endl;
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1537 base_value_stack_frame::display (follow);
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1538
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1539 display_scope (os, m_scope);
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1540 }
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1541
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1542 void scope_stack_frame::accept (stack_frame_walker& sfw)
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1543 {
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1544 sfw.visit_scope_stack_frame (*this);
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1545 }
cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1546 }