Mercurial > octave
annotate libinterp/corefcn/symrec.h @ 29864:e2e493712818
improve previous change for command syntax parsing (bug #60882)
* symrec.h (symbol_record::variable): New static constant.
(symbol_record_rep::is_variable, symbol_record_rep::mark_as_variable,
symbol_record_rep::unmark_as_variable): New functions.
(symbol_record_rep::mark_formal): Also mark as variable.
(symbol_record::is_variable, symbol_record::mark_as_variable,
symbol_record::unmark_as_variable): New functions.
* symscope.h, symscope.cc (symbol_scope_rep::mark_as_variable,
symbol_scope_rep::mark_as_variables, symbol_scope_rep::is_variable,
symbol_scope::mark_as_variable, symbol_scope::mark_as_variables,
symbol_scope::is_variable): New functions.
* lex.h, lex.ll (lexical_feedback::m_pending_local_variables): Delete
member variable and all uses.
(CMD_OR_COMPUTED_ASSIGN_OP): Don't attempt Matlab compatibility for
computed assignment operators.
(lexical_feedback::mark_as_variable,
lexical_feedback::mark_as_variables, lexical_feedback::is_variable):
Store status of symbols as variables in scope objects instead of
m_pending_local_variables lists.
(base_lexer::handle_identifier): Don't check for variables when
deciding whether an identifier can be recognized as a command.
* parse.h, oct-parse.yy (parse_exception, parse_tree_validator):
New classes.
(base_parser::bison_error): New overloads that accept parse_exception
and list of parse_exception objects.
(base_parser::finish_classdef_file): Validate classdef object and
local functions and return status.
(base_parser::validate_primary_fcn, base_parser::finish_input):
New functions.
(file): Validate primary function after parser is finished reading and
parsing file.
(input): Call base_parser::finish_input to validate and accept
statement list.
* try.tst: Fix syntax in test.
author | John W. Eaton <jwe@octave.org> |
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date | Fri, 09 Jul 2021 04:05:58 -0400 |
parents | aef11bb4e6d1 |
children | 7d2c9188d3f3 |
rev | line source |
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1 //////////////////////////////////////////////////////////////////////// |
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2 // |
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3 // Copyright (C) 1993-2021 The Octave Project Developers |
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4 // |
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5 // See the file COPYRIGHT.md in the top-level directory of this |
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6 // distribution or <https://octave.org/copyright/>. |
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7 // |
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8 // This file is part of Octave. |
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9 // |
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10 // Octave is free software: you can redistribute it and/or modify it |
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11 // under the terms of the GNU General Public License as published by |
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12 // the Free Software Foundation, either version 3 of the License, or |
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13 // (at your option) any later version. |
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14 // |
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15 // Octave is distributed in the hope that it will be useful, but |
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16 // WITHOUT ANY WARRANTY; without even the implied warranty of |
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17 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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18 // GNU General Public License for more details. |
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19 // |
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20 // You should have received a copy of the GNU General Public License |
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21 // along with Octave; see the file COPYING. If not, see |
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22 // <https://www.gnu.org/licenses/>. |
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23 // |
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24 //////////////////////////////////////////////////////////////////////// |
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25 |
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26 #if ! defined (octave_symrec_h) |
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27 #define octave_symrec_h 1 |
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28 |
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29 #include "octave-config.h" |
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30 |
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31 #include <deque> |
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32 #include <list> |
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33 #include <memory> |
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34 #include <string> |
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35 |
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36 class octave_user_function; |
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37 |
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38 #include "ov.h" |
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39 #include "ovl.h" |
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40 |
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41 namespace octave |
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42 { |
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43 class symbol_scope_rep; |
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44 |
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45 class symbol_record |
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46 { |
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47 public: |
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48 |
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49 typedef std::size_t context_id; |
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50 |
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51 // generic variable |
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52 static const unsigned int local = 1; |
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53 |
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54 // formal parameter |
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55 static const unsigned int formal = 2; |
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56 |
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57 // this symbol may NOT become a variable. |
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58 // (symbol added to a static workspace) |
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59 static const unsigned int added_static = 4; |
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60 |
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61 // this symbol was recognized as a variable from syntax |
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62 static const unsigned int variable = 8; |
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63 |
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64 private: |
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65 |
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66 class symbol_record_rep |
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67 { |
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68 public: |
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69 |
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70 symbol_record_rep (const std::string& nm, unsigned int sc) |
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71 : m_frame_offset (0), m_data_offset (0), m_storage_class (sc), |
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72 m_name (nm) |
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73 { } |
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74 |
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75 symbol_record_rep (const symbol_record_rep&) = default; |
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76 |
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77 symbol_record_rep& operator = (const symbol_record_rep&) = default; |
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78 |
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79 ~symbol_record_rep (void) = default; |
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80 |
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81 // FIXME: use special storage class instead? |
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82 bool is_valid (void) const { return ! m_name.empty (); } |
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83 |
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84 void set_frame_offset (std::size_t offset) { m_frame_offset = offset; } |
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85 |
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86 std::size_t frame_offset (void) const { return m_frame_offset; } |
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87 |
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88 void set_data_offset (std::size_t offset) { m_data_offset = offset; } |
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89 |
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90 std::size_t data_offset (void) const { return m_data_offset; } |
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91 |
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92 bool is_local (void) const |
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93 { |
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94 return m_storage_class & local; |
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95 } |
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96 |
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97 bool is_formal (void) const |
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98 { |
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99 return m_storage_class & formal; |
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100 } |
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101 |
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102 bool is_added_static (void) const |
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103 { |
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104 return m_storage_class & added_static; |
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105 } |
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106 |
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107 bool is_variable (void) const |
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108 { |
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109 return m_storage_class & variable; |
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110 } |
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111 |
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112 void mark_local (void) |
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113 { |
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114 m_storage_class |= local; |
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115 } |
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116 |
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117 void mark_formal (void) |
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118 { |
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119 // Formal parameters are also variables. |
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120 m_storage_class |= (formal | variable); |
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121 } |
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122 |
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123 void mark_added_static (void) |
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124 { |
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125 m_storage_class |= added_static; |
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126 } |
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127 |
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128 void mark_as_variable (void) |
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129 { |
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130 m_storage_class |= variable; |
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131 } |
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132 |
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133 void unmark_local (void) |
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134 { |
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135 m_storage_class &= ~local; |
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136 } |
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137 |
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138 void unmark_formal (void) |
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139 { |
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140 m_storage_class &= ~formal; |
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141 } |
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142 |
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143 void unmark_added_static (void) |
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144 { |
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145 m_storage_class &= ~added_static; |
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146 } |
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147 |
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148 void unmark_as_variable (void) |
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149 { |
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150 m_storage_class &= ~variable; |
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151 } |
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152 |
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153 unsigned int storage_class (void) const { return m_storage_class; } |
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154 |
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155 std::shared_ptr<symbol_record_rep> dup (void) const; |
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156 |
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157 octave_value dump (void) const; |
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158 |
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159 std::string name (void) const { return m_name; } |
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160 |
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161 void rename (const std::string& new_name) { m_name = new_name; } |
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162 |
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163 private: |
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164 |
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165 std::size_t m_frame_offset; |
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166 std::size_t m_data_offset; |
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167 |
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168 unsigned int m_storage_class; |
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169 |
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170 std::string m_name; |
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171 }; |
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172 |
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173 public: |
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174 |
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175 symbol_record (const std::string& nm = "", unsigned int sc = local) |
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176 : m_rep (new symbol_record_rep (nm, sc)) |
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177 { } |
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178 |
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179 symbol_record (const std::string& nm, const octave_value&, |
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180 unsigned int sc = local) |
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181 : m_rep (new symbol_record_rep (nm, sc)) |
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182 { } |
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183 |
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184 symbol_record (const symbol_record&) = default; |
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185 |
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186 symbol_record& operator = (const symbol_record&) = default; |
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187 |
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188 ~symbol_record (void) = default; |
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189 |
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190 bool is_valid (void) const { return m_rep->is_valid (); } |
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191 |
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192 explicit operator bool () const { return is_valid (); } |
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193 |
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194 void set_frame_offset (std::size_t offset) { m_rep->set_frame_offset (offset); } |
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195 |
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196 std::size_t frame_offset (void) const { return m_rep->frame_offset (); } |
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197 |
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198 void set_data_offset (std::size_t offset) { m_rep->set_data_offset (offset); } |
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199 |
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200 std::size_t data_offset (void) const { return m_rep->data_offset (); } |
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201 |
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202 symbol_record dup (void) const { return symbol_record (m_rep->dup ()); } |
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203 |
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204 std::string name (void) const { return m_rep->name (); } |
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205 |
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206 void rename (const std::string& new_name) { m_rep->rename (new_name); } |
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207 |
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208 bool is_local (void) const { return m_rep->is_local (); } |
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209 bool is_formal (void) const { return m_rep->is_formal (); } |
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210 bool is_added_static (void) const { return m_rep->is_added_static (); } |
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211 bool is_variable (void) const { return m_rep->is_variable (); } |
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212 |
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213 void mark_local (void) { m_rep->mark_local (); } |
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214 void mark_formal (void) { m_rep->mark_formal (); } |
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215 void mark_added_static (void) { m_rep->mark_added_static (); } |
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216 void mark_as_variable (void) { m_rep->mark_as_variable (); } |
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217 |
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218 void unmark_local (void) { m_rep->unmark_local (); } |
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219 void unmark_formal (void) { m_rep->unmark_formal (); } |
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220 void unmark_added_static (void) { m_rep->unmark_added_static (); } |
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221 void unmark_as_variable (void) { m_rep->unmark_as_variable (); } |
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222 |
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223 unsigned int storage_class (void) const { return m_rep->storage_class (); } |
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224 |
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225 octave_value dump (void) const { return m_rep->dump (); } |
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226 |
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227 private: |
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228 |
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229 std::shared_ptr<symbol_record_rep> m_rep; |
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230 |
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231 // NEW_REP must be dynamically allocated or nullptr. |
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232 symbol_record (const std::shared_ptr<symbol_record_rep>& new_rep) |
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233 : m_rep (new_rep) |
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234 { } |
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235 }; |
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236 } |
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237 |
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238 #endif |