Mercurial > octave
annotate libinterp/parse-tree/parse.h @ 29752:e04b4706ca18 stable
declare base_parser destructor virtual
* parse.h (base_parser::~base_parser): Declare virtual because class
has a virtual function.
author | John W. Eaton <jwe@octave.org> |
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date | Mon, 14 Jun 2021 10:39:32 -0400 |
parents | d13d090cb03a |
children | 48382b9025a5 |
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 //////////////////////////////////////////////////////////////////////// |
1 | 25 |
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26 #if ! defined (octave_parse_h) |
383 | 27 #define octave_parse_h 1 |
1 | 28 |
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29 #include "octave-config.h" |
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30 |
3021 | 31 #include <cstdio> |
32 | |
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33 #include <deque> |
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34 #include <map> |
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35 #include <memory> |
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36 #include <set> |
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37 #include <string> |
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39 #include "input.h" |
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40 #include "lex.h" |
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41 #include "pt-misc.h" |
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42 #include "symscope.h" |
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43 #include "token.h" |
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44 |
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45 class octave_function; |
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46 class octave_user_function; |
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47 |
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48 namespace octave |
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49 { |
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50 class comment_list; |
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51 class tree; |
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52 class tree_anon_fcn_handle; |
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53 class tree_argument_list; |
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54 class tree_array_list; |
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55 class tree_cell; |
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56 class tree_classdef; |
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57 class tree_classdef_attribute_list; |
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58 class tree_classdef_body; |
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59 class tree_classdef_enum_block; |
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60 class tree_classdef_enum_list; |
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61 class tree_classdef_events_block; |
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62 class tree_classdef_events_list; |
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63 class tree_classdef_methods_block; |
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64 class tree_classdef_methods_list; |
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65 class tree_classdef_properties_block; |
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66 class tree_classdef_property_list; |
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67 class tree_classdef_superclass_list; |
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68 class tree_colon_expression; |
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69 class tree_command; |
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70 class tree_constant; |
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71 class tree_decl_command; |
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72 class tree_decl_init_list; |
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73 class tree_expression; |
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74 class tree_fcn_handle; |
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75 class tree_function_def; |
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76 class tree_identifier; |
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77 class tree_if_clause; |
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78 class tree_if_command; |
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79 class tree_if_command_list; |
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80 class tree_index_expression; |
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81 class tree_matrix; |
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82 class tree_matrix; |
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83 class tree_parameter_list; |
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84 class tree_statement; |
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85 class tree_statement_list; |
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86 class tree_statement_listtree_statement; |
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87 class tree_switch_case; |
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88 class tree_switch_case_list; |
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89 class tree_switch_command; |
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90 } |
3772 | 91 |
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92 #include "ovl.h" |
1 | 93 |
94 // Nonzero means print parser debugging info (-d). | |
4753 | 95 extern int octave_debug; |
1 | 96 |
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97 namespace octave |
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98 { |
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99 class base_parser |
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100 { |
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101 private: |
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102 |
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103 class parent_scope_info |
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104 { |
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105 public: |
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106 |
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107 typedef std::pair<symbol_scope, std::string> value_type; |
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108 |
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109 typedef std::deque<value_type>::iterator iterator; |
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110 typedef std::deque<value_type>::const_iterator const_iterator; |
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111 |
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112 typedef std::deque<value_type>::reverse_iterator reverse_iterator; |
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113 typedef std::deque<value_type>::const_reverse_iterator const_reverse_iterator; |
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114 |
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115 parent_scope_info (void) = delete; |
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116 |
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117 parent_scope_info (base_parser& parser) |
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118 : m_parser (parser), m_info (), m_all_names () |
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119 { } |
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120 |
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121 // No copying! |
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122 |
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123 parent_scope_info (const parent_scope_info&) = delete; |
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124 |
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125 parent_scope_info& operator = (const parent_scope_info&) = delete; |
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126 |
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127 ~parent_scope_info (void) = default; |
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128 |
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129 std::size_t size (void) const; |
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130 |
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131 void push (const value_type& elt); |
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132 |
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133 void push (const symbol_scope& id); |
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134 |
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135 void pop (void); |
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136 |
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137 bool name_ok (const std::string& name); |
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138 |
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139 bool name_current_scope (const std::string& name); |
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140 |
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141 symbol_scope parent_scope (void) const; |
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142 |
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143 std::string parent_name (void) const; |
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144 |
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145 void clear (void); |
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146 |
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147 private: |
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148 |
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149 base_parser& m_parser; |
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150 std::deque<value_type> m_info; |
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151 std::set<std::string> m_all_names; |
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152 }; |
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153 |
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154 public: |
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155 |
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156 base_parser (base_lexer& lxr); |
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157 |
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158 // No copying! |
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159 |
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160 base_parser (const base_parser&) = delete; |
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161 |
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162 base_parser& operator = (const base_parser&) = delete; |
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163 |
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164 virtual ~base_parser (void); |
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165 |
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166 base_lexer& get_lexer (void) const { return m_lexer; } |
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167 |
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168 bool at_end_of_input (void) const { return m_lexer.m_end_of_input; } |
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169 |
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170 void reset (void); |
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171 |
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172 void classdef_object (const std::shared_ptr<tree_classdef>& obj) |
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173 { |
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174 m_classdef_object = obj; |
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175 } |
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176 |
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177 std::shared_ptr<tree_classdef> classdef_object (void) const |
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178 { |
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179 return m_classdef_object; |
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180 } |
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181 |
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182 void statement_list (std::shared_ptr<tree_statement_list>& lst); |
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183 |
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184 std::shared_ptr<tree_statement_list> statement_list (void) const |
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185 { |
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186 return m_stmt_list; |
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187 } |
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188 |
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189 void parsing_subfunctions (bool flag) |
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190 { |
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191 m_parsing_subfunctions = flag; |
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192 } |
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193 |
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194 bool parsing_subfunctions (void) const |
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195 { |
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196 return m_parsing_subfunctions; |
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197 } |
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198 |
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199 void parsing_local_functions (bool flag) |
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200 { |
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201 m_parsing_local_functions = flag; |
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202 } |
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203 |
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204 bool parsing_local_functions (void) const |
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205 { |
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206 return m_parsing_local_functions; |
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207 } |
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208 |
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209 int curr_fcn_depth (void) const |
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210 { |
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211 return m_curr_fcn_depth; |
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212 } |
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213 |
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214 void endfunction_found (bool flag) |
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215 { |
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216 m_endfunction_found = flag; |
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217 } |
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218 |
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219 bool endfunction_found (void) const |
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220 { |
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221 return m_endfunction_found; |
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222 } |
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223 |
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224 // Error messages for mismatched end tokens. |
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225 void end_token_error (token *tok, token::end_tok_type expected); |
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226 |
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227 // Check to see that end tokens are properly matched. |
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228 bool end_token_ok (token *tok, token::end_tok_type expected); |
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229 |
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230 // Handle pushing symbol table for new function scope. |
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231 bool push_fcn_symtab (void); |
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232 |
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233 // Build a constant. |
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234 tree_constant * make_constant (int op, token *tok_val); |
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235 |
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236 // Build a function handle. |
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237 tree_fcn_handle * make_fcn_handle (token *tok_val); |
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238 |
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239 // Build an anonymous function handle. |
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240 tree_anon_fcn_handle * |
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241 make_anon_fcn_handle (tree_parameter_list *param_list, |
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242 tree_expression * expr, const filepos& at_pos); |
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243 |
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244 // Build a colon expression. |
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245 tree_expression * |
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246 make_colon_expression (tree_expression *base, tree_expression *limit, |
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247 tree_expression *incr = nullptr); |
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248 |
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249 // Build a binary expression. |
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250 tree_expression * |
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251 make_binary_op (int op, tree_expression *op1, token *tok_val, |
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252 tree_expression *op2); |
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253 |
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254 // Build a boolean expression. |
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255 tree_expression * |
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256 make_boolean_op (int op, tree_expression *op1, token *tok_val, |
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257 tree_expression *op2); |
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258 |
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259 // Build a prefix expression. |
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260 tree_expression * |
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261 make_prefix_op (int op, tree_expression *op1, token *tok_val); |
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262 |
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263 // Build a postfix expression. |
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264 tree_expression * |
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265 make_postfix_op (int op, tree_expression *op1, token *tok_val); |
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266 |
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267 // Build an unwind-protect command. |
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268 tree_command * |
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269 make_unwind_command (token *unwind_tok, tree_statement_list *body, |
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270 tree_statement_list *cleanup, token *end_tok, |
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271 comment_list *lc, comment_list *mc); |
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272 |
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273 // Build a try-catch command. |
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274 tree_command * |
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275 make_try_command (token *try_tok, tree_statement_list *body, |
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276 char catch_sep, tree_statement_list *cleanup, |
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277 token *end_tok, comment_list *lc, |
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278 comment_list *mc); |
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279 |
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280 // Build a while command. |
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281 tree_command * |
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282 make_while_command (token *while_tok, tree_expression *expr, |
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283 tree_statement_list *body, token *end_tok, |
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284 comment_list *lc); |
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285 |
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286 // Build a do-until command. |
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287 tree_command * |
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288 make_do_until_command (token *until_tok, tree_statement_list *body, |
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289 tree_expression *expr, comment_list *lc); |
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290 |
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291 // Build a for command. |
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292 tree_command * |
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293 make_for_command (int tok_id, token *for_tok, tree_argument_list *lhs, |
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294 tree_expression *expr, tree_expression *maxproc, |
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295 tree_statement_list *body, token *end_tok, |
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296 comment_list *lc); |
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297 |
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298 // Build a break command. |
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299 tree_command * make_break_command (token *break_tok); |
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300 |
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301 // Build a continue command. |
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302 tree_command * make_continue_command (token *continue_tok); |
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303 |
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304 // Build a return command. |
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305 tree_command * make_return_command (token *return_tok); |
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306 |
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307 // Start an if command. |
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308 tree_if_command_list * |
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309 start_if_command (tree_expression *expr, tree_statement_list *list); |
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310 |
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311 // Finish an if command. |
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312 tree_if_command * |
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313 finish_if_command (token *if_tok, tree_if_command_list *list, |
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314 token *end_tok, comment_list *lc); |
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315 |
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316 // Build an elseif clause. |
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317 tree_if_clause * |
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318 make_elseif_clause (token *elseif_tok, tree_expression *expr, |
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319 tree_statement_list *list, comment_list *lc); |
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320 |
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321 // Finish a switch command. |
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322 tree_switch_command * |
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323 finish_switch_command (token *switch_tok, tree_expression *expr, |
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324 tree_switch_case_list *list, token *end_tok, |
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325 comment_list *lc); |
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326 |
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327 // Build a switch case. |
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328 tree_switch_case * |
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329 make_switch_case (token *case_tok, tree_expression *expr, |
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330 tree_statement_list *list, comment_list *lc); |
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331 |
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332 // Build an assignment to a variable. |
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333 tree_expression * |
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334 make_assign_op (int op, tree_argument_list *lhs, token *eq_tok, |
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335 tree_expression *rhs); |
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336 |
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337 // Define a script. |
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338 void make_script (tree_statement_list *cmds, tree_statement *end_script); |
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339 |
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340 // Handle identifier that is recognized as a function name. |
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341 tree_identifier * |
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342 make_fcn_name (tree_identifier *id); |
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343 |
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344 // Define a function. |
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345 tree_function_def * |
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346 make_function (token *fcn_tok, tree_parameter_list *ret_list, |
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347 tree_identifier *id, tree_parameter_list *param_list, |
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348 tree_statement_list *body, tree_statement *end_fcn_stmt, |
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349 comment_list *lc); |
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350 |
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351 // Begin defining a function. |
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352 octave_user_function * |
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353 start_function (tree_identifier *id, tree_parameter_list *param_list, |
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354 tree_statement_list *body, tree_statement *end_function); |
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355 |
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356 // Create a no-op statement for end_function. |
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357 tree_statement * make_end (const std::string& type, bool eof, |
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358 const filepos& beg_pos, const filepos& end_pos); |
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359 |
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360 // Do most of the work for defining a function. |
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361 octave_user_function * |
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362 frob_function (tree_identifier *id, octave_user_function *fcn); |
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363 |
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364 // Finish defining a function. |
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365 tree_function_def * |
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366 finish_function (tree_parameter_list *ret_list, |
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367 octave_user_function *fcn, comment_list *lc, |
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368 int l, int c); |
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369 |
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370 // Reset state after parsing function. |
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371 void |
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372 recover_from_parsing_function (void); |
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373 |
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374 tree_classdef * |
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375 make_classdef (token *tok_val, tree_classdef_attribute_list *a, |
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376 tree_identifier *id, tree_classdef_superclass_list *sc, |
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377 tree_classdef_body *body, token *end_tok, |
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378 comment_list *lc, comment_list *tc); |
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379 |
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380 tree_classdef_properties_block * |
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381 make_classdef_properties_block (token *tok_val, |
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382 tree_classdef_attribute_list *a, |
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383 tree_classdef_property_list *plist, |
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384 token *end_tok, comment_list *lc, |
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385 comment_list *tc); |
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386 |
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387 tree_classdef_methods_block * |
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388 make_classdef_methods_block (token *tok_val, |
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389 tree_classdef_attribute_list *a, |
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390 tree_classdef_methods_list *mlist, |
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391 token *end_tok, comment_list *lc, |
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392 comment_list *tc); |
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393 |
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394 tree_classdef_events_block * |
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395 make_classdef_events_block (token *tok_val, |
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396 tree_classdef_attribute_list *a, |
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397 tree_classdef_events_list *elist, |
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398 token *end_tok, comment_list *lc, |
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399 comment_list *tc); |
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400 |
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401 tree_classdef_enum_block * |
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402 make_classdef_enum_block (token *tok_val, |
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403 tree_classdef_attribute_list *a, |
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404 tree_classdef_enum_list *elist, |
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405 token *end_tok, comment_list *lc, |
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406 comment_list *tc); |
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407 |
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408 octave_user_function * |
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409 start_classdef_external_method (tree_identifier *id, |
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410 tree_parameter_list *pl); |
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411 |
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412 tree_function_def * |
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413 finish_classdef_external_method (octave_user_function *fcn, |
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414 tree_parameter_list *ret_list, |
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415 comment_list *cl); |
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416 |
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417 void |
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418 finish_classdef_file (tree_classdef *cls, |
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419 tree_statement_list *local_fcns); |
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420 |
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421 // Make an index expression. |
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422 tree_index_expression * |
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423 make_index_expression (tree_expression *expr, |
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424 tree_argument_list *args, char type); |
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425 |
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426 // Make an indirect reference expression. |
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427 tree_index_expression * |
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428 make_indirect_ref (tree_expression *expr, const std::string&); |
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429 |
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430 // Make an indirect reference expression with dynamic field name. |
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431 tree_index_expression * |
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432 make_indirect_ref (tree_expression *expr, tree_expression *field); |
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433 |
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434 // Make a declaration command. |
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435 tree_decl_command * |
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436 make_decl_command (int tok, token *tok_val, tree_decl_init_list *lst); |
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437 |
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438 // Validate an function parameter list. |
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439 bool validate_param_list (tree_parameter_list *lst, |
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440 tree_parameter_list::in_or_out type); |
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441 // Validate matrix or cell |
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442 bool validate_array_list (tree_expression *e); |
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443 |
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444 // Validate matrix object used in "[lhs] = ..." assignments. |
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445 tree_argument_list * validate_matrix_for_assignment (tree_expression *e); |
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446 |
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447 // Finish building an array_list (common action for finish_matrix |
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448 // and finish_cell). |
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449 tree_expression * finish_array_list (tree_array_list *a, token *open_delim, |
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450 token *close_delim); |
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451 |
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452 // Finish building a matrix list. |
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453 tree_expression * finish_matrix (tree_matrix *m, token *open_delim, |
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454 token *close_delim); |
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455 |
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456 // Finish building a cell list. |
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457 tree_expression * finish_cell (tree_cell *c, token *open_delim, |
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458 token *close_delim); |
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459 |
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460 // Set the print flag for a statement based on the separator type. |
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461 tree_statement_list * |
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462 set_stmt_print_flag (tree_statement_list *, char, bool); |
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463 |
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464 // Finish building a statement. |
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465 template <typename T> |
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466 tree_statement * make_statement (T *arg); |
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467 |
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468 // Create a statement list. |
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469 tree_statement_list * make_statement_list (tree_statement *stmt); |
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470 |
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471 // Append a statement to an existing statement list. |
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472 tree_statement_list * |
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473 append_statement_list (tree_statement_list *list, char sep, |
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474 tree_statement *stmt, bool warn_missing_semi); |
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475 |
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476 // Don't allow parsing command syntax. If the parser/lexer is |
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477 // reset, this setting is also reset to the default (allow command |
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478 // syntax). |
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479 void disallow_command_syntax (void); |
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480 |
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481 // Generic error messages. |
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482 void bison_error (const std::string& s); |
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483 void bison_error (const std::string& s, const filepos& pos); |
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484 void bison_error (const std::string& s, int line, int column); |
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485 |
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486 friend octave_value |
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487 parse_fcn_file (interpreter& interp, const std::string& full_file, |
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488 const std::string& file, const std::string& dir_name, |
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489 const std::string& dispatch_type, |
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490 const std::string& package_name, bool require_file, |
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491 bool force_script, bool autoload, bool relative_lookup); |
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492 |
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493 // Thih interface allows push or pull parsers to be used |
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494 // equivalently, provided that the push parser also owns its input |
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495 // method (see below). Alternatively, the push parser interface may |
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496 // use a separate run method and completely separate input from |
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497 // lexical analysis and parsing. |
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498 |
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499 virtual int run (void) = 0; |
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500 |
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501 protected: |
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502 |
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503 // Contains error message if Bison-generated parser returns non-zero |
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504 // status. |
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505 std::string m_parse_error_msg; |
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506 |
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507 // Have we found an explicit end to a function? |
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508 bool m_endfunction_found; |
16142
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parents:
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diff
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509 |
22196
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510 // TRUE means we are in the process of autoloading a function. |
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511 bool m_autoloading; |
16153
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512 |
22196
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513 // TRUE means the current function file was found in a relative path |
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514 // element. |
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515 bool m_fcn_file_from_relative_lookup; |
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516 |
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517 // FALSE if we are still at the primary function. Subfunctions can |
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518 // only be declared inside function files. |
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519 bool m_parsing_subfunctions; |
16153
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520 |
23343
49f051ef6f2f
local functions in classdef files (bug #41723)
John W. Eaton <jwe@octave.org>
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|
521 // TRUE if we are parsing local functions defined at after a |
49f051ef6f2f
local functions in classdef files (bug #41723)
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parents:
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522 // classdef block. Local functions can only be declared inside |
49f051ef6f2f
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John W. Eaton <jwe@octave.org>
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523 // classdef files. |
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524 bool m_parsing_local_functions; |
23343
49f051ef6f2f
local functions in classdef files (bug #41723)
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|
525 |
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526 // Maximum function depth detected. Used to determine whether |
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|
527 // we have nested functions or just implicitly ended subfunctions. |
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528 int m_max_fcn_depth; |
16153
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|
529 |
22196
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530 // = 0 currently outside any function. |
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|
531 // = 1 inside the primary function or a subfunction. |
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532 // > 1 means we are looking at a function definition that seems to be |
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533 // inside a function. Note that the function still might not be a |
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|
534 // nested function. |
23694
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parents:
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|
535 int m_curr_fcn_depth; |
16153
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|
536 |
22196
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|
537 // Scope where we install all subfunctions and nested functions. Only |
dd992fd74fce
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|
538 // used while reading function files. |
24361
8bcfddad15ec
use shared_ptr to manage symbol_scope objects
John W. Eaton <jwe@octave.org>
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24270
diff
changeset
|
539 symbol_scope m_primary_fcn_scope; |
16153
a57c2c8c8163
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John W. Eaton <jwe@octave.org>
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|
540 |
22196
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John W. Eaton <jwe@octave.org>
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diff
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541 // Name of the current class when we are parsing class methods or |
dd992fd74fce
put parser, lexer, and evaluator in namespace; interpreter now owns evaluator
John W. Eaton <jwe@octave.org>
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diff
changeset
|
542 // constructors. |
23694
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John W. Eaton <jwe@octave.org>
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diff
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|
543 std::string m_curr_class_name; |
16153
a57c2c8c8163
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John W. Eaton <jwe@octave.org>
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|
544 |
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John W. Eaton <jwe@octave.org>
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diff
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|
545 // Name of the current package when we are parsing an element contained |
dd992fd74fce
put parser, lexer, and evaluator in namespace; interpreter now owns evaluator
John W. Eaton <jwe@octave.org>
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|
546 // in a package directory (+-directory). |
23694
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John W. Eaton <jwe@octave.org>
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diff
changeset
|
547 std::string m_curr_package_name; |
16676
7368654f302f
Initial support for (classdef) packages.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
16644
diff
changeset
|
548 |
23054
564e959a0e89
avoid invalid nested function and subfunctions definitions (bug #50014)
John W. Eaton <jwe@octave.org>
parents:
22869
diff
changeset
|
549 // Nested function scopes and names currently being parsed. |
23694
4a62da62af09
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John W. Eaton <jwe@octave.org>
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diff
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|
550 parent_scope_info m_function_scopes; |
16153
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move some variables into the octave_parser class
John W. Eaton <jwe@octave.org>
parents:
16149
diff
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|
551 |
22196
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John W. Eaton <jwe@octave.org>
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|
552 // Pointer to the primary user function or user script function. |
27505
c409d16b7190
eliminate some uses of bare pointers to octave_function objects
John W. Eaton <jwe@octave.org>
parents:
27504
diff
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|
553 octave_value m_primary_fcn; |
16153
a57c2c8c8163
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John W. Eaton <jwe@octave.org>
parents:
16149
diff
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|
554 |
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changeset
|
555 // List of subfunction names, initially in the order they are |
dd992fd74fce
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|
556 // installed in the symbol table, then ordered as they appear in the |
dd992fd74fce
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John W. Eaton <jwe@octave.org>
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557 // file. Eventually stashed in the primary function object. |
23694
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John W. Eaton <jwe@octave.org>
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|
558 std::list<std::string> m_subfunction_names; |
16627
de91b1621260
adjust location of eof marker for files with subfunctions but no explicit end statements
John W. Eaton <jwe@octave.org>
parents:
16335
diff
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|
559 |
22196
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|
560 // Pointer to the classdef object we just parsed, if any. |
27504
7a31b25e3252
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John W. Eaton <jwe@octave.org>
parents:
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diff
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|
561 std::shared_ptr<tree_classdef> m_classdef_object; |
16211
3449bf257514
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John W. Eaton <jwe@octave.org>
parents:
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diff
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|
562 |
22196
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|
563 // Result of parsing input. |
27504
7a31b25e3252
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parents:
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diff
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|
564 std::shared_ptr <tree_statement_list> m_stmt_list; |
16177
a7669b4d27f6
eliminate global global_command variable
John W. Eaton <jwe@octave.org>
parents:
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diff
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|
565 |
22196
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|
566 // State of the lexer. |
23694
4a62da62af09
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|
567 base_lexer& m_lexer; |
16149
49dfba4fd3c5
use pure parser and reentrant lexer interfaces
John W. Eaton <jwe@octave.org>
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16142
diff
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|
568 |
22196
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569 // Internal state of the Bison parser. |
23694
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|
570 void *m_parser_state; |
27510
5438a82a18fb
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571 |
5438a82a18fb
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John W. Eaton <jwe@octave.org>
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diff
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|
572 private: |
5438a82a18fb
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|
573 |
5438a82a18fb
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574 // Maybe print a warning if an assignment expression is used as the |
5438a82a18fb
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John W. Eaton <jwe@octave.org>
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|
575 // test in a logical expression. |
5438a82a18fb
declare base_parser class data protected
John W. Eaton <jwe@octave.org>
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diff
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|
576 void maybe_warn_assign_as_truth_value (tree_expression *expr); |
5438a82a18fb
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|
577 |
5438a82a18fb
declare base_parser class data protected
John W. Eaton <jwe@octave.org>
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diff
changeset
|
578 // Maybe print a warning about switch labels that aren't constants. |
5438a82a18fb
declare base_parser class data protected
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
579 void maybe_warn_variable_switch_label (tree_expression *expr); |
5438a82a18fb
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John W. Eaton <jwe@octave.org>
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27509
diff
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|
580 |
5438a82a18fb
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diff
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581 // Maybe print a warning. |
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582 void maybe_warn_missing_semi (tree_statement_list *); |
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583 }; |
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584 |
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585 // Publish externally used friend functions. |
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586 |
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587 extern OCTAVE_API octave_value |
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588 parse_fcn_file (interpreter& interp, const std::string& full_file, |
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589 const std::string& file, const std::string& dir_name, |
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590 const std::string& dispatch_type, |
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591 const std::string& package_name, bool require_file, |
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592 bool force_script, bool autoload, bool relative_lookup); |
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593 |
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594 class parser : public base_parser |
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595 { |
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596 public: |
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597 |
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598 parser (interpreter& interp) |
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599 : base_parser (*(new lexer (interp))) |
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600 { } |
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601 |
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602 parser (FILE *file, interpreter& interp) |
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603 : base_parser (*(new lexer (file, interp))) |
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604 { } |
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605 |
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606 parser (const std::string& eval_string, interpreter& interp) |
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607 : base_parser (*(new lexer (eval_string, interp))) |
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608 { } |
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609 |
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610 // The lexer must be allocated with new. The parser object |
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611 // takes ownership of and deletes the lexer object in its |
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612 // destructor. |
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613 |
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614 parser (lexer *lxr) |
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615 : base_parser (*lxr) |
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616 { } |
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617 |
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618 // No copying! |
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619 |
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620 parser (const parser&) = delete; |
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621 |
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622 parser& operator = (const parser&) = delete; |
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623 |
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624 ~parser (void) = default; |
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625 |
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626 int run (void); |
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627 }; |
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628 |
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629 class push_parser : public base_parser |
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630 { |
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631 public: |
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632 |
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633 push_parser (interpreter& interp) |
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634 : base_parser (*(new push_lexer (interp))), |
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635 m_interpreter (interp), m_reader () |
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636 { } |
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637 |
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638 // The parser assumes ownership of READER, which must be created |
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639 // with new. |
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640 |
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641 push_parser (interpreter& interp, input_reader *reader) |
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642 : base_parser (*(new push_lexer (interp))), |
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643 m_interpreter (interp), m_reader (reader) |
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644 { } |
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645 |
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646 // No copying! |
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647 |
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648 push_parser (const push_parser&) = delete; |
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649 |
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650 push_parser& operator = (const push_parser&) = delete; |
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651 |
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652 ~push_parser (void) = default; |
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653 |
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654 // Use the push parser in the same way as the pull parser. The |
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655 // parser arranges for input through the M_READER object. See, for |
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656 // example, interpreter::main_loop. |
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657 |
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658 int run (void); |
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659 |
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660 // Parse INPUT. M_READER is not used. The user is responsible for |
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661 // collecting input. |
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662 |
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663 int run (const std::string& input, bool eof); |
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664 |
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665 private: |
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666 |
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667 interpreter& m_interpreter; |
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668 |
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669 std::shared_ptr<input_reader> m_reader; |
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670 }; |
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671 |
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672 extern OCTINTERP_API std::string |
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673 get_help_from_file (const std::string& nm, bool& symbol_found, |
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674 std::string& file); |
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675 |
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676 extern OCTINTERP_API std::string |
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677 get_help_from_file (const std::string& nm, bool& symbol_found); |
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678 |
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679 extern OCTINTERP_API octave_value |
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680 load_fcn_from_file (const std::string& file_name, |
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681 const std::string& dir_name = "", |
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682 const std::string& dispatch_type = "", |
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683 const std::string& package_name = "", |
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684 const std::string& fcn_name = "", |
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685 bool autoload = false); |
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686 |
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687 extern OCTINTERP_API void |
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688 source_file (const std::string& file_name, |
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689 const std::string& context = "", |
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690 bool verbose = false, bool require_file = true); |
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691 |
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692 extern OCTINTERP_API octave_value_list |
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693 feval (const char *name, |
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694 const octave_value_list& args = octave_value_list (), |
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695 int nargout = 0); |
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696 |
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697 extern OCTINTERP_API octave_value_list |
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698 feval (const std::string& name, |
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699 const octave_value_list& args = octave_value_list (), |
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700 int nargout = 0); |
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701 |
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702 extern OCTINTERP_API octave_value_list |
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703 feval (octave_function *fcn, |
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704 const octave_value_list& args = octave_value_list (), |
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705 int nargout = 0); |
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706 |
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707 extern OCTINTERP_API octave_value_list |
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708 feval (const octave_value& val, |
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709 const octave_value_list& args = octave_value_list (), |
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710 int nargout = 0); |
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711 |
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712 extern OCTINTERP_API octave_value_list |
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713 feval (const octave_value_list& args, int nargout = 0); |
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714 |
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715 OCTAVE_DEPRECATED (5, "use 'octave::interpreter::eval_string' instead") |
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716 extern OCTINTERP_API octave_value_list |
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717 eval_string (const std::string&, bool silent, int& parse_status, int nargout); |
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718 |
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719 OCTAVE_DEPRECATED (5, "use 'octave::interpreter::eval_string' instead") |
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720 extern OCTINTERP_API octave_value |
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721 eval_string (const std::string&, bool silent, int& parse_status); |
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722 |
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723 extern OCTINTERP_API void |
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724 cleanup_statement_list (tree_statement_list **lst); |
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725 } |
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726 |
1 | 727 #endif |