Mercurial > octave
annotate libinterp/corefcn/symrec.cc @ 24263:3b302b2890d7
disentangle symbol_record, scope, and fcn_info from symbol_table class
* fcn-info.cc, fcn-info.h, scope.cc, scope.h, symrec.cc, symrec.h:
New files extracted from symtab.h and symtab.cc.
* libinterp/corefcn/module.mk: Update.
* symrec.cc (symbol_record::symbol_record_rep::xglobal_varref):
Don't access private symbol_table internals directly.
* scope.h, scope.cc (scope::find, scope::builtin_find,
scope::clear_global, scope::clear_global_pattern):
Don't access private symbol_table internals directly.
* symtab.h, symtab.cc (symbol_table::builtin_find): Don't forward to
current scope. Look directly in fcn_info table.
(symbol_table::global_varref, symbol_table::fcn_table_find,
symbol_table::erase_global, symbol_table::erase_global_pattern):
New functions.
* scope.h (scope::context_id): New typedef.
* symrec.h (symbol_record::context_id): New typedef.
* symtab.h (symbol_table::context_id): Update.
* symtab.h, symtab.cc (symbol_table::dummy_octave_value):
Delete static data member.
* symtab.h (symbol_table::context_id): Delete typedef.
(symbol_table::symbol_record, symbol_table::scope,
symbol_table::fcn_info): New typedefs.
author | John W. Eaton <jwe@octave.org> |
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date | Thu, 16 Nov 2017 16:06:31 -0500 |
parents | |
children | f494b87d2a93 |
rev | line source |
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24263
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1 /* |
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2 |
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3 Copyright (C) 1993-2017 John W. Eaton |
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4 Copyright (C) 2009 VZLU Prague, a.s. |
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5 |
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6 This file is part of Octave. |
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7 |
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8 Octave is free software; you can redistribute it and/or modify it |
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9 under the terms of the GNU General Public License as published by |
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10 the Free Software Foundation; either version 3 of the License, or |
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11 (at your option) any later version. |
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12 |
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13 Octave is distributed in the hope that it will be useful, but |
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14 WITHOUT ANY WARRANTY; without even the implied warranty of |
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15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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16 GNU General Public License for more details. |
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17 |
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18 You should have received a copy of the GNU General Public License |
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19 along with Octave; see the file COPYING. If not, see |
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20 <http://www.gnu.org/licenses/>. |
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21 |
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22 */ |
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23 |
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24 #if defined (HAVE_CONFIG_H) |
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25 # include "config.h" |
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26 #endif |
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27 |
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28 #include <sstream> |
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29 |
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30 #include "file-ops.h" |
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31 #include "file-stat.h" |
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32 #include "oct-env.h" |
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33 #include "oct-time.h" |
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34 |
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35 #include "fcn-info.h" |
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36 #include "interpreter-private.h" |
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37 #include "interpreter.h" |
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38 #include "scope.h" |
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39 #include "symrec.h" |
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40 #include "symtab.h" |
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41 |
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42 namespace octave |
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43 { |
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44 symbol_record::context_id |
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45 symbol_record::symbol_record_rep::get_decl_scope_context (void) const |
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46 { |
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47 return m_decl_scope ? m_decl_scope->current_context () : 0; |
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48 } |
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49 |
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50 void |
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51 symbol_record::symbol_record_rep::clear (scope *sid) |
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52 { |
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53 if (m_fwd_rep) |
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54 { |
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55 m_fwd_rep->clear (sid); |
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56 return; |
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57 } |
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58 |
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59 if (! (is_hidden () || is_inherited ()) |
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60 && sid == decl_scope ()) |
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61 { |
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62 if (is_global ()) |
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63 unmark_global (); |
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64 |
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65 if (is_persistent ()) |
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66 { |
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67 sid->persistent_assign (name, varval ()); |
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68 |
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69 unmark_persistent (); |
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70 } |
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71 |
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72 assign (octave_value ()); |
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73 } |
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74 } |
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75 |
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76 void |
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77 symbol_record::symbol_record_rep::init_persistent (void) |
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78 { |
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79 if (m_fwd_rep) |
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80 { |
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81 m_fwd_rep->init_persistent (); |
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82 return; |
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83 } |
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84 |
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85 scope *curr_scope |
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86 = __require_current_scope__ ("symbol_record::symbol_record_rep::init_persistent"); |
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87 |
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88 if (! is_defined ()) |
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89 { |
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90 mark_persistent (); |
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91 |
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92 assign (curr_scope->persistent_varval (name)); |
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93 } |
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94 // FIXME: this causes trouble with recursive calls. |
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95 // else |
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96 // error ("unable to declare existing variable persistent"); |
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97 } |
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98 |
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99 void |
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100 symbol_record::symbol_record_rep::erase_persistent (void) |
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101 { |
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102 if (m_fwd_rep) |
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103 { |
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104 m_fwd_rep->erase_persistent (); |
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105 return; |
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106 } |
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107 |
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108 unmark_persistent (); |
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109 |
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110 scope *curr_scope |
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111 = __require_current_scope__ ("symbol_record::symbol_record_rep::erase_persistent"); |
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112 |
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113 curr_scope->erase_persistent (name); |
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114 } |
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115 |
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116 symbol_record::symbol_record_rep * |
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117 symbol_record::symbol_record_rep::dup (scope *new_scope) const |
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118 { |
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119 // FIXME: is this the right thing do to? |
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120 if (m_fwd_rep) |
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121 return m_fwd_rep->dup (new_scope); |
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122 |
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123 return new symbol_record_rep (new_scope, name, varval (), storage_class); |
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124 } |
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125 |
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126 octave_value |
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127 symbol_record::symbol_record_rep::dump (void) const |
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128 { |
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129 if (m_fwd_rep) |
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130 return m_fwd_rep->dump (); |
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131 |
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132 std::map<std::string, octave_value> m |
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133 = {{ "name", name }, |
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134 { "local", is_local () }, |
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135 { "automatic", is_automatic () }, |
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136 { "formal", is_formal () }, |
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137 { "hidden", is_hidden () }, |
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138 { "inherited", is_inherited () }, |
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139 { "global", is_global () }, |
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140 { "persistent", is_persistent () }}; |
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141 |
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142 octave_value val = varval (); |
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143 |
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144 if (val.is_defined ()) |
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145 m["value"] = val; |
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146 |
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147 return octave_value (m); |
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148 } |
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149 |
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150 octave_value& |
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151 symbol_record::symbol_record_rep::xglobal_varref (void) |
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152 { |
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153 if (m_fwd_rep) |
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154 return m_fwd_rep->xglobal_varref (); |
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155 |
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156 symbol_table& symtab |
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157 = __get_symbol_table__ ("symbol_record::symbol_record_rep::xglobal_varref"); |
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158 |
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159 return symtab.global_varref (name); |
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160 } |
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161 |
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162 octave_value& |
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163 symbol_record::symbol_record_rep::xpersistent_varref (void) |
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164 { |
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165 if (m_fwd_rep) |
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166 return m_fwd_rep->xpersistent_varref (); |
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167 |
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168 scope *curr_scope |
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169 = __get_current_scope__ ("symbol_record::symbol_record_rep::xpersistent_varref"); |
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170 |
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171 return (curr_scope |
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172 ? curr_scope->persistent_varref (name) : dummy_octave_value); |
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173 } |
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174 |
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175 octave_value |
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176 symbol_record::symbol_record_rep::xglobal_varval (void) const |
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177 { |
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178 if (m_fwd_rep) |
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179 return m_fwd_rep->xglobal_varval (); |
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180 |
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181 symbol_table& symtab |
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182 = __get_symbol_table__ ("symbol_record::symbol_record_rep::xglobal_varval"); |
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183 |
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184 return symtab.global_varval (name); |
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185 } |
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186 |
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187 octave_value |
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188 symbol_record::symbol_record_rep::xpersistent_varval (void) const |
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189 { |
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190 if (m_fwd_rep) |
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191 return m_fwd_rep->xpersistent_varval (); |
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192 |
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193 scope *curr_scope |
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194 = __get_current_scope__ ("symbol_record::symbol_record_rep::xpersistent_varval"); |
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195 |
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196 return curr_scope ? curr_scope->persistent_varval (name) : octave_value (); |
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197 } |
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198 |
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199 symbol_record::symbol_record (void) |
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200 : rep (new symbol_record_rep (__get_current_scope__ ("symbol_record"), |
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201 "", octave_value (), local)) |
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202 |
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203 { } |
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204 |
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205 octave_value |
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206 symbol_record::find (const octave_value_list& args) const |
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207 { |
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208 octave_value retval; |
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209 |
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210 symbol_table& symtab |
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211 = __get_symbol_table__ ("symbol_record::find"); |
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212 |
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213 if (is_global ()) |
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214 retval = symtab.global_varval (name ()); |
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215 else |
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216 { |
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217 retval = varval (); |
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218 |
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219 if (retval.is_undefined ()) |
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220 { |
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221 #if 0 |
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222 // Use cached fcn_info pointer if possible. |
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223 if (rep->finfo) |
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224 retval = rep->finfo->find (args); |
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225 else |
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226 #endif |
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227 { |
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228 retval = symtab.find_function (name (), args); |
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229 |
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230 if (retval.is_defined ()) |
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231 return retval; |
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232 #if 0 |
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233 { |
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234 rep->finfo = symtab.get_fcn_info (name ()); |
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235 } |
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236 #endif |
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237 } |
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238 } |
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239 } |
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240 |
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241 return retval; |
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242 } |
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243 |
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244 octave_value symbol_record::dummy_octave_value; |
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245 } |