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annotate libinterp/parse-tree/pt-args-block.h @ 29863:c29cfcf7a941

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provide default definitions for more tree_walker methods For parse tree elements that are primarily containers of other elements, provide default methods that iterate over their contents. * pt-walk.cc (tree_walker::visit_anon_fcn_handle, tree_walker::visit_arguments_block, tree_walker::visit_args_block_attribute_list, tree_walker::visit_args_block_validation_list, tree_walker::visit_arg_validation, tree_walker::visit_arg_size_spec, tree_walker::visit_arg_validation_fcns, tree_walker::visit_classdef_attribute, tree_walker::visit_classdef_attribute_list, tree_walker::visit_classdef_superclass_list, tree_walker::visit_classdef_property_list, tree_walker::visit_classdef_properties_block, tree_walker::visit_classdef_methods_list, tree_walker::visit_classdef_methods_block, tree_walker::visit_classdef_events_list, tree_walker::visit_classdef_events_block, tree_walker::visit_classdef_enum_list, tree_walker::visit_classdef_enum_block, tree_walker::visit_classdef_body, tree_walker::visit_classdef): Call accept for all sub-elements. * pt-args-block.h (tree_args_block_attribute_list::attribute, tree_arg_size_spec::size_args, tree_arg_validation_fcns::fcn_args, tree_arguments_block::attribute_list, tree_arguments_block::validation_list): New functions.
author John W. Eaton <jwe@octave.org>
date Fri, 09 Jul 2021 04:03:36 -0400
parents d0ce7260978d
children 796f54d4ddbf
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1 ////////////////////////////////////////////////////////////////////////
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2 //
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3 // Copyright (C) 2021 The Octave Project Developers
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4 //
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5 // See the file COPYRIGHT.md in the top-level directory of this
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6 // distribution or <https://octave.org/copyright/>.
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7 //
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8 // This file is part of Octave.
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9 //
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10 // Octave is free software: you can redistribute it and/or modify it
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11 // under the terms of the GNU General Public License as published by
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12 // the Free Software Foundation, either version 3 of the License, or
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13 // (at your option) any later version.
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14 //
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15 // Octave is distributed in the hope that it will be useful, but
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16 // WITHOUT ANY WARRANTY; without even the implied warranty of
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17 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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18 // GNU General Public License for more details.
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19 //
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20 // You should have received a copy of the GNU General Public License
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21 // along with Octave; see the file COPYING. If not, see
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22 // <https://www.gnu.org/licenses/>.
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23 //
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24 ////////////////////////////////////////////////////////////////////////
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25
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26 #if ! defined (octave_pt_args_block_h)
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27 #define octave_pt_args_block_h 1
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28
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29 #include "octave-config.h"
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30
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31 #include "pt-arg-list.h"
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32 #include "pt-cmd.h"
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33 #include "pt-exp.h"
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34 #include "pt-id.h"
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35 #include "pt-walk.h"
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36
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37 #include "base-list.h"
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38
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39 // FIXME: We could maybe re-think the naming of some of these objects
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40 // before releasing a version that contains these new classes...
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41
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42 namespace octave
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43 {
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44 class tree_arg_size_spec
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45 {
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46 public:
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47
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48 tree_arg_size_spec (tree_argument_list *size_args)
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49 : m_size_args (size_args)
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50 { }
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51
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52 // No copying!
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53
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54 tree_arg_size_spec (const tree_arg_size_spec&) = delete;
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55
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56 tree_arg_size_spec& operator = (const tree_arg_size_spec&) = delete;
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57
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58 ~tree_arg_size_spec (void)
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59 {
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60 delete m_size_args;
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61 }
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62
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63 tree_argument_list * size_args (void) { return m_size_args; }
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64
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65 void accept (tree_walker& tw)
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66 {
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67 tw.visit_arg_size_spec (*this);
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68 }
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69
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70 private:
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71
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72 tree_argument_list *m_size_args;
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73 };
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74
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75 class tree_arg_validation_fcns
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76 {
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77 public:
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78
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79 tree_arg_validation_fcns (tree_argument_list *fcn_args)
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80 : m_fcn_args (fcn_args)
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81 { }
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82
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83 // No copying!
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84
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85 tree_arg_validation_fcns (const tree_arg_validation_fcns&) = delete;
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86
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87 tree_arg_validation_fcns& operator = (const tree_arg_validation_fcns&) = delete;
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88
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89 ~tree_arg_validation_fcns (void)
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90 {
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91 delete m_fcn_args;
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92 }
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93
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94 tree_argument_list * fcn_args (void) { return m_fcn_args; }
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95
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96 void accept (tree_walker& tw)
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97 {
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98 tw.visit_arg_validation_fcns (*this);
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99 }
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100
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101 private:
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102
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103 tree_argument_list *m_fcn_args;
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104 };
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105
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106 class tree_arg_validation
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107 {
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108 public:
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109
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110 tree_arg_validation (tree_arg_size_spec *size_spec,
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111 tree_identifier *class_name,
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112 tree_arg_validation_fcns *validation_fcns,
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113 tree_expression *default_value)
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114 : m_arg_name (nullptr), m_size_spec (size_spec),
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115 m_class_name (class_name), m_validation_fcns (validation_fcns),
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116 m_default_value (default_value)
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117 { }
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118
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119 // No copying!
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120
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121 tree_arg_validation (const tree_arg_validation&) = delete;
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122
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123 tree_arg_validation& operator = (const tree_arg_validation&) = delete;
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124
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125 ~tree_arg_validation (void)
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126 {
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127 delete m_arg_name;
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128 delete m_size_spec;
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129 delete m_class_name;
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130 delete m_validation_fcns;
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131 delete m_default_value;
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132 }
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133
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134 void arg_name (tree_expression *name)
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135 {
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136 m_arg_name = name;
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137 }
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138
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139 tree_expression * identifier_expression (void) { return m_arg_name; }
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140
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141 tree_arg_size_spec * size_spec (void) { return m_size_spec; }
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142
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143 tree_identifier * class_name (void) { return m_class_name; }
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144
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145 tree_arg_validation_fcns *
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146 validation_fcns (void) { return m_validation_fcns; }
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147
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148 tree_expression *
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149 initializer_expression (void) { return m_default_value; }
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150
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151 void accept (tree_walker& tw)
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152 {
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153 tw.visit_arg_validation (*this);
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154 }
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155
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156 private:
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157
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158 // May be a simple identifier or an identifier followed by a single
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159 // field name.
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160 tree_expression *m_arg_name;
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161 tree_arg_size_spec *m_size_spec;
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162 tree_identifier *m_class_name;
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163 tree_arg_validation_fcns *m_validation_fcns;
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164 tree_expression *m_default_value;
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165 };
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166
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167 class tree_args_block_validation_list
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168 : public base_list<tree_arg_validation *>
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169 {
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170 public:
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171
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172 tree_args_block_validation_list (void) { }
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173
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174 tree_args_block_validation_list (tree_arg_validation *a) { append (a); }
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175
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176 tree_args_block_validation_list (const base_list<tree_arg_validation *>& a)
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177 : base_list<tree_arg_validation *> (a)
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178 { }
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179
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180 // No copying!
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181
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182 tree_args_block_validation_list (const tree_args_block_validation_list&) = delete;
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183
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184 tree_args_block_validation_list& operator = (const tree_args_block_validation_list&) = delete;
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185
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186 ~tree_args_block_validation_list (void);
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187
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188 void accept (tree_walker& tw)
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189 {
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190 tw.visit_args_block_validation_list (*this);
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191 }
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192 };
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193
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194 // FIXME: Maybe make this object an actual list even though we don't
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195 // currently need it?
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196
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197 class tree_args_block_attribute_list
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198 {
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199 public:
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200
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201 tree_args_block_attribute_list (tree_identifier *attr = nullptr)
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202 : m_attr (attr)
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203 { }
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204
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205 // No copying!
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206
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207 tree_args_block_attribute_list (const tree_args_block_attribute_list&) = delete;
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208
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209 tree_args_block_attribute_list& operator = (const tree_args_block_attribute_list&) = delete;
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210
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211 ~tree_args_block_attribute_list (void)
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212 {
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213 delete m_attr;
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214 }
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215
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216 tree_identifier * attribute (void) { return m_attr; }
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217
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218 void accept (tree_walker& tw)
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219 {
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220 tw.visit_args_block_attribute_list (*this);
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221 }
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222
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223 private:
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224
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225 tree_identifier *m_attr;
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226 };
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227
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228 // Arguments block.
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229
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230 class tree_arguments_block : public tree_command
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231 {
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232 public:
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233
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234 tree_arguments_block (tree_args_block_attribute_list *attr_list,
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235 tree_args_block_validation_list *validation_list,
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236 int l = -1, int c = -1)
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237 : tree_command (l, c), m_attr_list (attr_list),
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238 m_validation_list (validation_list),
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239 m_lead_comm (nullptr), m_trail_comm (nullptr)
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240 { }
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241
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242 // No copying!
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243
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244 tree_arguments_block (const tree_arguments_block&) = delete;
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245
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246 tree_arguments_block& operator = (const tree_arguments_block&) = delete;
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247
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248 ~tree_arguments_block (void)
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249 {
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250 delete m_attr_list;
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251 delete m_validation_list;
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252
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253 delete m_lead_comm;
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254 delete m_trail_comm;
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255 }
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256
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257 tree_args_block_attribute_list * attribute_list (void)
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258 {
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259 return m_attr_list;
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260 }
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261
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262 tree_args_block_validation_list * validation_list (void)
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263 {
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264 return m_validation_list;
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265 }
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266
29724
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267 comment_list * leading_comment (void) { return m_lead_comm; }
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268
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269 comment_list * trailing_comment (void) { return m_trail_comm; }
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270
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271 void accept (tree_walker& tw)
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272 {
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273 tw.visit_arguments_block (*this);
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274 }
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275
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276 private:
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277
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278 tree_args_block_attribute_list *m_attr_list;
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279
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280 tree_args_block_validation_list *m_validation_list;
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281
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282 // Comment preceding ARGUMENTS token.
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283 comment_list *m_lead_comm;
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284
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285 // Comment preceding ENDARGUMENTS token.
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286 comment_list *m_trail_comm;
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287 };
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288 }
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289
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290 #endif