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annotate libinterp/parse-tree/pt-decl.h @ 22869:f75d289645ec

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make deleted functions public * octave-gui.h, resource-manager.h, shortcut-manager.h, base-text-renderer.h, c-file-ptr-stream.h, dynamic-ld.cc, dynamic-ld.h, event-queue.h, ft-text-renderer.cc, gl-render.cc, gl-render.h, graphics.cc, graphics.in.h, interpreter.h, mex.cc, mxarray.in.h, oct-fstrm.h, oct-iostrm.h, oct-prcstrm.h, oct-procbuf.h, oct-stdstrm.h, oct-stream.cc, oct-stream.h, oct-strstrm.h, octave-link.h, pager.h, profiler.h, sighandlers.cc, symtab.h, text-renderer.h, zfstream.h, __init_fltk__.cc, ov-builtin.h, ov-dld-fcn.h, ov-fcn.h, ov-mex-fcn.h, ov-typeinfo.h, ov-usr-fcn.h, octave.h, lex.h, parse.h, pt-arg-list.h, pt-array-list.h, pt-assign.h, pt-binop.h, pt-bp.h, pt-cell.h, pt-check.h, pt-classdef.h, pt-cmd.h, pt-colon.h, pt-const.h, pt-decl.h, pt-eval.h, pt-except.h, pt-exp.h, pt-fcn-handle.h, pt-funcall.h, pt-id.h, pt-idx.h, pt-jump.h, pt-loop.h, pt-mat.h, pt-misc.h, pt-pr-code.h, pt-select.h, pt-stmt.h, pt-unop.h, pt-walk.h, pt.h, token.h, Array.cc, idx-vector.h, oct-fftw.h, sparse-chol.cc, sparse-qr.cc, file-ops.h, mach-info.h, oct-env.h, action-container.h, cmd-edit.cc, cmd-edit.h, cmd-hist.h, oct-locbuf.h, oct-mutex.h, oct-shlib.cc, oct-sort.h, pathsearch.h, singleton-cleanup.h, unwind-prot.h, url-transfer.cc, url-transfer.h: Declare deleted copy constructors and assignment operators public.
author John W. Eaton <jwe@octave.org>
date Tue, 06 Dec 2016 12:40:45 -0500
parents 87e3163f6c87
children 4e3d47dc7e25
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1 /*
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2
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3 Copyright (C) 1996-2016 John W. Eaton
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4
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5 This file is part of Octave.
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6
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7 Octave is free software; you can redistribute it and/or modify it
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8 under the terms of the GNU General Public License as published by
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9 the Free Software Foundation; either version 3 of the License, or
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10 (at your option) any later version.
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11
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12 Octave is distributed in the hope that it will be useful, but
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13 WITHOUT ANY WARRANTY; without even the implied warranty of
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14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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15 GNU General Public License for more details.
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16
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17 You should have received a copy of the GNU General Public License
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18 along with Octave; see the file COPYING. If not, see
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19 <http://www.gnu.org/licenses/>.
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20
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21 */
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22
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23 #if ! defined (octave_pt_decl_h)
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24 #define octave_pt_decl_h 1
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25
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26 #include "octave-config.h"
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27
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28 class tree_expression;
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29 class tree_identifier;
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30
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31 class tree_walker;
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32
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33 #include <string>
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34
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35 #include "base-list.h"
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36 #include "oct-lvalue.h"
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37 #include "pt-cmd.h"
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38 #include "pt-id.h"
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39 #include "symtab.h"
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40
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41 // List of expressions that make up a declaration statement.
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42
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43 class
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44 tree_decl_elt
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45 {
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46 public:
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47
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48 tree_decl_elt (tree_identifier *i = 0, tree_expression *e = 0)
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49 : id (i), expr (e) { }
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50
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51 // No copying!
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52
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53 tree_decl_elt (const tree_decl_elt&) = delete;
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54
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55 tree_decl_elt& operator = (const tree_decl_elt&) = delete;
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56
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57 ~tree_decl_elt (void);
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58
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59 bool eval (void);
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60
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61 bool is_defined (void) { return id ? id->is_defined () : false; }
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62
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63 bool is_variable (void) { return id ? id->is_variable () : false; }
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64
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65 void mark_as_formal_parameter (void)
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66 {
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67 if (id)
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68 id->mark_as_formal_parameter ();
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69 }
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70
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71 bool lvalue_ok (void) { return id ? id->lvalue_ok () : false; }
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72
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73 // Do not allow functions to return null values.
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74 octave_value rvalue1 (int nargout = 1)
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75 {
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76 return id ? id->rvalue1 (nargout).storable_value () : octave_value ();
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77 }
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78
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79 octave_value_list rvalue (int nargout)
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80 {
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81 octave_value_list retval;
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82
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83 if (nargout > 1)
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84 error ("invalid number of output arguments in declaration list");
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85
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86 retval = rvalue1 (nargout);
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87
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88 return retval;
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89 }
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90
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91 octave_lvalue lvalue (void) { return id ? id->lvalue () : octave_lvalue (); }
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92
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93 tree_identifier *ident (void) { return id; }
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94
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95 std::string name (void) { return id ? id->name () : ""; }
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96
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97 tree_expression *expression (void) { return expr; }
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98
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99 tree_decl_elt *dup (symbol_table::scope_id scope,
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100 symbol_table::context_id context) const;
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101
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102 void accept (tree_walker& tw);
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103
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104 private:
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105
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106 // An identifier to tag with the declared property.
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107 tree_identifier *id;
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108
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109 // An initializer expression (may be zero);
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110 tree_expression *expr;
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111 };
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112
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113 class
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114 tree_decl_init_list : public octave::base_list<tree_decl_elt *>
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115 {
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116 public:
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117
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118 tree_decl_init_list (void) { }
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119
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120 tree_decl_init_list (tree_decl_elt *t) { append (t); }
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121
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122 // No copying!
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123
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124 tree_decl_init_list (const tree_decl_init_list&) = delete;
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125
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126 tree_decl_init_list& operator = (const tree_decl_init_list&) = delete;
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127
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128 ~tree_decl_init_list (void)
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129 {
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130 while (! empty ())
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131 {
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132 iterator p = begin ();
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133 delete *p;
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134 erase (p);
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135 }
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136 }
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137
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138 tree_decl_init_list *dup (symbol_table::scope_id scope,
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139 symbol_table::context_id context) const;
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140
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141 void accept (tree_walker& tw);
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142 };
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143
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144 // Base class for declaration commands -- global, static, etc.
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145
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146 class
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147 tree_decl_command : public tree_command
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148 {
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149 public:
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150
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151 tree_decl_command (const std::string& n, int l = -1, int c = -1)
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152 : tree_command (l, c), cmd_name (n), init_list (0) { }
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153
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154 tree_decl_command (const std::string& n, tree_decl_init_list *t,
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155 int l = -1, int c = -1)
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156 : tree_command (l, c), cmd_name (n), init_list (t) { }
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157
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158 // No copying!
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159
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160 tree_decl_command (const tree_decl_command&) = delete;
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161
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162 tree_decl_command& operator = (const tree_decl_command&) = delete;
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163
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164 ~tree_decl_command (void);
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165
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166 tree_decl_init_list *initializer_list (void) { return init_list; }
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167
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168 std::string name (void) { return cmd_name; }
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169
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170 protected:
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171
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172 // The name of this command -- global, static, etc.
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173 std::string cmd_name;
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174
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175 // The list of variables or initializers in this declaration command.
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176 tree_decl_init_list *init_list;
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177 };
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178
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179 // Global.
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180
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181 class
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182 tree_global_command : public tree_decl_command
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183 {
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184 public:
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185
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186 tree_global_command (int l = -1, int c = -1)
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187 : tree_decl_command ("global", l, c) { }
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188
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189 tree_global_command (tree_decl_init_list *t, int l = -1, int c = -1)
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190 : tree_decl_command ("global", t, l, c) { }
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191
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192 // No copying!
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193
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194 tree_global_command (const tree_global_command&) = delete;
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195
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196 tree_global_command& operator = (const tree_global_command&) = delete;
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197
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198 ~tree_global_command (void) = default;
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199
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200 tree_command *dup (symbol_table::scope_id scope,
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201 symbol_table::context_id context) const;
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202
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203 void accept (tree_walker& tw);
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204
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205 private:
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206
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207 static void do_init (tree_decl_elt& elt);
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208 };
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209
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210 // Persistent.
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211
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212 class
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213 tree_persistent_command : public tree_decl_command
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214 {
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215 public:
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216
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217 tree_persistent_command (int l = -1, int c = -1)
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218 : tree_decl_command ("persistent", l, c) { }
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219
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220 tree_persistent_command (tree_decl_init_list *t, int l = -1, int c = -1)
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221 : tree_decl_command ("persistent", t, l, c) { }
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222
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223 // No copying!
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224
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225 tree_persistent_command (const tree_persistent_command&) = delete;
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226
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227 tree_persistent_command& operator = (const tree_persistent_command&) = delete;
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228
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229 ~tree_persistent_command (void) = default;
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230
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231 tree_command *dup (symbol_table::scope_id scope,
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232 symbol_table::context_id context) const;
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233
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234 void accept (tree_walker& tw);
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235
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236 private:
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237
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238 static void do_init (tree_decl_elt& elt);
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239 };
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240
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241 #endif
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242