annotate libinterp/parse-tree/pt-idx.h @ 24355:cc3b3ceb155c

update octave_lvalue class and move inside octave namespace * oct-lvalue.h, oct-lvalue.cc (class octave_lvalue): Use m_ prefix for member variable names. Move inside Octave namespace. Change all uses.
author John W. Eaton <jwe@octave.org>
date Mon, 04 Dec 2017 01:26:06 -0500
parents bc3819b7cca1
children 3fc24b792a24
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1 /*
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2
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3 Copyright (C) 1996-2017 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
93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe]
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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_idx_h)
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24 #define octave_pt_idx_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 #include <list>
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29
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30 class octave_map;
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31 class octave_value;
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32 class octave_value_list;
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33
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34 #include "str-vec.h"
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35
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36 #include "pt-exp.h"
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37 #include "pt-walk.h"
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38 #include "symtab.h"
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39
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40 namespace octave
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41 {
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42 class octave_lvalue;
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43 class tree_argument_list;
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44 class tree_evaluator;
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45
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46 // Index expressions.
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47
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48 class tree_index_expression : public tree_expression
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49 {
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50 public:
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51
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52 tree_index_expression (tree_expression *e = nullptr, tree_argument_list *lst = nullptr,
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53 int l = -1, int c = -1, char t = '(');
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55 tree_index_expression (tree_expression *e, const std::string& n,
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56 int l = -1, int c = -1);
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57
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58 tree_index_expression (tree_expression *e, tree_expression *df,
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59 int l = -1, int c = -1);
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61 // No copying!
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62
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63 tree_index_expression (const tree_index_expression&) = delete;
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64
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65 tree_index_expression& operator = (const tree_index_expression&) = delete;
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67 ~tree_index_expression (void);
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68
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69 bool has_magic_end (void) const;
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71 void append (tree_argument_list *lst = nullptr, char t = '(');
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73 void append (const std::string& n);
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75 void append (tree_expression *df);
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77 bool is_index_expression (void) const { return true; }
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78
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79 std::string name (void) const;
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80
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81 tree_expression * expression (void) { return expr; }
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83 std::list<tree_argument_list *> arg_lists (void) { return args; }
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84
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85 std::string type_tags (void) { return type; }
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86
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87 std::list<string_vector> arg_names (void) { return arg_nm; }
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88
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89 std::list<tree_expression *> dyn_fields (void) { return dyn_field; }
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90
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91 bool lvalue_ok (void) const { return expr->lvalue_ok (); }
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92
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93 bool rvalue_ok (void) const { return true; }
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94
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95 octave_lvalue lvalue (tree_evaluator *tw);
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96
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97 tree_index_expression * dup (symbol_scope& scope) const;
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98
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99 void accept (tree_walker& tw)
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100 {
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101 tw.visit_index_expression (*this);
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102 }
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103
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104 std::string
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105 get_struct_index
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106 (tree_evaluator *tw, std::list<string_vector>::const_iterator p_arg_nm,
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107 std::list<tree_expression *>::const_iterator p_dyn_field) const;
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108
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109 private:
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110
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111 // The LHS of this index expression.
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112 tree_expression *expr;
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113
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114 // The indices (only valid if type == paren || type == brace).
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115 std::list<tree_argument_list *> args;
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116
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117 // The type of this index expression.
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118 std::string type;
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119
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120 // The names of the arguments. Used for constant struct element
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121 // references.
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122 std::list<string_vector> arg_nm;
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123
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124 // The list of dynamic field names, if any.
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125 std::list<tree_expression *> dyn_field;
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126
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127 tree_index_expression (int l, int c);
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128
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129 octave_map make_arg_struct (void) const;
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130 };
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131 }
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132
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133 #if defined (OCTAVE_USE_DEPRECATED_FUNCTIONS)
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134
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135 OCTAVE_DEPRECATED (4.4, "use 'octave::tree_index_expression' instead")
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136 typedef octave::tree_index_expression tree_index_expression;
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137
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138 #endif
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139
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140 #endif