Mercurial > octave
annotate libinterp/parse-tree/pt-decl.h @ 23470:a41fdb801db6
use mark_global and mark_persistent consistently
* ls-hdf5.cc, ls-hdf5.h, ls-mat5.cc, ls-mat5.h, ls-oct-binary.cc,
ls-oct-binary.h, ls-oct-text.cc, ls-oct-text.h, oct-parse.in.yy,
pt-decl.cc, pt-decl.h, pt-eval.cc, pt-id.h: Consistently use
mark_global and mark_persistent instead of mark_as_global,
mark_as_persistent, mark_static, or mark_as_static.
author | John W. Eaton <jwe@octave.org> |
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date | Thu, 04 May 2017 15:10:29 -0400 |
parents | 2699c5974844 |
children | a3898679d459 |
rev | line source |
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2982 | 1 /* |
2 | |
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3 Copyright (C) 1996-2017 John W. Eaton |
2982 | 4 |
5 This file is part of Octave. | |
6 | |
7 Octave is free software; you can redistribute it and/or modify it | |
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8 under the terms of the GNU General Public License as published by |
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9 the Free Software Foundation; either version 3 of the License, or |
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10 (at your option) any later version. |
2982 | 11 |
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12 Octave is distributed in the hope that it will be useful, but |
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13 WITHOUT ANY WARRANTY; without even the implied warranty of |
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14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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15 GNU General Public License for more details. |
2982 | 16 |
17 You should have received a copy of the GNU General Public License | |
7016 | 18 along with Octave; see the file COPYING. If not, see |
19 <http://www.gnu.org/licenses/>. | |
2982 | 20 |
21 */ | |
22 | |
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23 #if ! defined (octave_pt_decl_h) |
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24 #define octave_pt_decl_h 1 |
2982 | 25 |
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26 #include "octave-config.h" |
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27 |
2982 | 28 #include <string> |
29 | |
4219 | 30 #include "base-list.h" |
6215 | 31 #include "oct-lvalue.h" |
2982 | 32 #include "pt-cmd.h" |
6215 | 33 #include "pt-id.h" |
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34 #include "pt-walk.h" |
7336 | 35 #include "symtab.h" |
2982 | 36 |
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37 namespace octave |
2982 | 38 { |
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39 class tree_evaluator; |
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40 class tree_expression; |
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41 class tree_identifier; |
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42 |
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43 // List of expressions that make up a declaration statement. |
2982 | 44 |
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45 class tree_decl_elt |
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46 { |
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47 public: |
2982 | 48 |
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49 enum decl_type |
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50 { |
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51 unknown, |
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52 global, |
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53 persistent |
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54 }; |
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55 |
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56 tree_decl_elt (tree_identifier *i = nullptr, tree_expression *e = nullptr) |
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57 : type (unknown), id (i), expr (e) { } |
6215 | 58 |
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59 // No copying! |
7336 | 60 |
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61 tree_decl_elt (const tree_decl_elt&) = delete; |
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62 |
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63 tree_decl_elt& operator = (const tree_decl_elt&) = delete; |
6215 | 64 |
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65 ~tree_decl_elt (void); |
6215 | 66 |
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67 bool is_defined (void) { return id ? id->is_defined () : false; } |
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68 |
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69 bool is_variable (void) { return id ? id->is_variable () : false; } |
6215 | 70 |
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71 void mark_as_formal_parameter (void) |
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72 { |
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73 if (id) |
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74 id->mark_as_formal_parameter (); |
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75 } |
6215 | 76 |
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77 bool lvalue_ok (void) { return id ? id->lvalue_ok () : false; } |
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78 |
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79 octave_lvalue lvalue (tree_evaluator *tw) |
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80 { |
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81 return id ? id->lvalue (tw) : octave_lvalue (); |
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82 } |
2982 | 83 |
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84 void mark_global (void) { type = global; } |
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85 bool is_global (void) const { return type == global; } |
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86 |
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87 void mark_persistent (void) { type = persistent; } |
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88 bool is_persistent (void) const { return type == persistent; } |
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89 |
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90 tree_identifier * ident (void) { return id; } |
5861 | 91 |
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92 std::string name (void) { return id ? id->name () : ""; } |
2982 | 93 |
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94 tree_expression * expression (void) { return expr; } |
2982 | 95 |
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96 tree_decl_elt * dup (symbol_table::scope_id scope, |
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97 symbol_table::context_id context) const; |
2982 | 98 |
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99 void accept (tree_walker& tw) |
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100 { |
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101 tw.visit_decl_elt (*this); |
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102 } |
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103 |
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104 private: |
2988 | 105 |
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106 decl_type type; |
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107 |
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108 // An identifier to tag with the declared property. |
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109 tree_identifier *id; |
2988 | 110 |
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111 // An initializer expression (may be zero); |
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112 tree_expression *expr; |
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113 }; |
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115 class tree_decl_init_list : public octave::base_list<tree_decl_elt *> |
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116 { |
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117 public: |
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118 |
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119 tree_decl_init_list (void) { } |
2982 | 120 |
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121 tree_decl_init_list (tree_decl_elt *t) { append (t); } |
2982 | 122 |
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123 // No copying! |
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125 tree_decl_init_list (const tree_decl_init_list&) = delete; |
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126 |
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127 tree_decl_init_list& operator = (const tree_decl_init_list&) = delete; |
2982 | 128 |
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129 ~tree_decl_init_list (void) |
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130 { |
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131 while (! empty ()) |
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132 { |
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133 iterator p = begin (); |
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134 delete *p; |
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135 erase (p); |
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136 } |
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137 } |
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139 void mark_global (void) |
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140 { |
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141 for (tree_decl_elt *elt : *this) |
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142 elt->mark_global (); |
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143 } |
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144 |
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145 void mark_persistent (void) |
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146 { |
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147 for (tree_decl_elt *elt : *this) |
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148 elt->mark_persistent (); |
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149 } |
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150 |
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151 tree_decl_init_list * dup (symbol_table::scope_id scope, |
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152 symbol_table::context_id context) const; |
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154 void accept (tree_walker& tw) |
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155 { |
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156 tw.visit_decl_init_list (*this); |
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157 } |
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158 }; |
2988 | 159 |
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160 // Base class for declaration commands -- global, static, etc. |
2982 | 161 |
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162 class tree_decl_command : public tree_command |
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163 { |
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164 public: |
2982 | 165 |
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166 tree_decl_command (const std::string& n, int l = -1, int c = -1) |
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167 : tree_command (l, c), cmd_name (n), init_list (0) { } |
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168 |
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169 tree_decl_command (const std::string& n, tree_decl_init_list *t, |
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170 int l = -1, int c = -1); |
2982 | 171 |
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172 // No copying! |
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174 tree_decl_command (const tree_decl_command&) = delete; |
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175 |
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176 tree_decl_command& operator = (const tree_decl_command&) = delete; |
2982 | 177 |
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178 ~tree_decl_command (void); |
2982 | 179 |
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180 void mark_global (void) |
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181 { |
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182 if (init_list) |
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183 init_list->mark_global (); |
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184 } |
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185 |
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186 void mark_persistent (void) |
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187 { |
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188 if (init_list) |
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189 init_list->mark_persistent (); |
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190 } |
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191 |
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192 tree_decl_init_list * initializer_list (void) { return init_list; } |
2982 | 193 |
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194 std::string name (void) const { return cmd_name; } |
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195 |
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196 tree_command *dup (symbol_table::scope_id scope, |
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197 symbol_table::context_id context) const; |
2982 | 198 |
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199 void accept (tree_walker& tw) |
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200 { |
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201 tw.visit_decl_command (*this); |
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202 } |
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203 |
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204 private: |
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206 // The name of this command -- global, static, etc. |
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207 std::string cmd_name; |
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209 // The list of variables or initializers in this declaration command. |
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210 tree_decl_init_list *init_list; |
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211 }; |
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212 } |
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214 #if defined (OCTAVE_USE_DEPRECATED_FUNCTIONS) |
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216 OCTAVE_DEPRECATED ("use 'octave::tree_decl_elt' instead") |
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217 typedef octave::tree_decl_elt tree_decl_elt; |
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218 |
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219 // tree_decl_init_list is derived from a template. |
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221 OCTAVE_DEPRECATED ("use 'octave::tree_decl_command' instead") |
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222 typedef octave::tree_decl_command tree_decl_command; |
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2982 | 224 #endif |
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225 |
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226 #endif |