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1 /* |
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2 |
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3 Copyright (C) 1994, 1995, 1996, 1997, 1999, 2002, 2003, 2004, 2005, |
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4 2006, 2007 John W. Eaton |
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5 |
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6 This file is part of Octave. |
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7 |
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8 Octave is free software; you can redistribute it and/or modify it |
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9 under the terms of the GNU General Public License as published by the |
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10 Free Software Foundation; either version 3 of the License, or (at your |
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11 option) any later version. |
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12 |
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13 Octave is distributed in the hope that it will be useful, but WITHOUT |
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14 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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16 for more details. |
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17 |
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18 You should have received a copy of the GNU General Public License |
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19 along with Octave; see the file COPYING. If not, see |
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20 <http://www.gnu.org/licenses/>. |
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21 |
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22 */ |
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23 |
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24 #if !defined (octave_tree_misc_h) |
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25 #define octave_tree_misc_h 1 |
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26 |
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27 class Cell; |
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28 |
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29 class octave_value; |
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30 class octave_value_list; |
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31 |
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32 class tree_identifier; |
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33 class tree_index_expression; |
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34 class tree_va_return_list; |
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35 |
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36 class tree_walker; |
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37 |
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38 #include "base-list.h" |
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39 #include "pt-decl.h" |
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40 #include "symtab.h" |
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41 |
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42 // Parameter lists. Used to hold the list of input and output |
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43 // parameters in a function definition. Elements are identifiers |
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44 // only. |
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45 |
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46 class |
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47 tree_parameter_list : public octave_base_list<tree_decl_elt *> |
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48 { |
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49 public: |
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50 |
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51 tree_parameter_list (void) |
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52 : marked_for_varargs (0) { } |
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53 |
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54 tree_parameter_list (tree_decl_elt *t) |
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55 : marked_for_varargs (0) { append (t); } |
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56 |
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57 ~tree_parameter_list (void); |
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58 |
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59 void mark_as_formal_parameters (void); |
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60 |
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61 void mark_varargs (void) { marked_for_varargs = 1; } |
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62 |
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63 bool takes_varargs (void) const { return marked_for_varargs != 0; } |
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64 |
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65 void mark_varargs_only (void) { marked_for_varargs = -1; } |
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66 |
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67 bool varargs_only (void) { return (marked_for_varargs < 0); } |
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68 |
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69 void initialize_undefined_elements (const std::string& warnfor, |
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70 int nargout, const octave_value& val); |
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71 |
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72 void define_from_arg_vector (const octave_value_list& args); |
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73 |
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74 void undefine (void); |
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75 |
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76 bool is_defined (void); |
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77 |
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78 octave_value_list convert_to_const_vector (const Cell& varargout); |
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79 |
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80 tree_parameter_list *dup (symbol_table::scope_id scope); |
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81 |
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82 void accept (tree_walker& tw); |
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83 |
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84 private: |
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85 |
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86 int marked_for_varargs; |
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87 |
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88 // No copying! |
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89 |
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90 tree_parameter_list (const tree_parameter_list&); |
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91 |
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92 tree_parameter_list& operator = (const tree_parameter_list&); |
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93 }; |
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94 |
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95 // Return lists. Used to hold the right hand sides of multiple |
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96 // assignment expressions. |
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97 |
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98 class |
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99 tree_return_list : public octave_base_list<tree_index_expression *> |
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100 { |
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101 public: |
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102 |
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103 tree_return_list (void) { } |
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104 |
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105 tree_return_list (tree_index_expression *t) { append (t); } |
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106 |
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107 ~tree_return_list (void); |
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108 |
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109 tree_return_list *dup (symbol_table::scope_id scope); |
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110 |
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111 void accept (tree_walker& tw); |
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112 |
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113 private: |
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114 |
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115 // No copying! |
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116 |
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117 tree_return_list (const tree_return_list&); |
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118 |
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119 tree_return_list& operator = (const tree_return_list&); |
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120 }; |
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121 |
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122 class |
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123 tree_va_return_list : public octave_base_list<octave_value> |
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124 { |
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125 public: |
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126 |
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127 tree_va_return_list (void) { } |
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128 |
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129 ~tree_va_return_list (void) { } |
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130 |
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131 private: |
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132 |
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133 // No copying! |
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134 |
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135 tree_va_return_list (const tree_va_return_list&); |
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136 |
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137 tree_va_return_list& operator = (const tree_va_return_list&); |
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138 }; |
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139 |
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140 #endif |
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141 |
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142 /* |
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143 ;;; Local Variables: *** |
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144 ;;; mode: C++ *** |
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145 ;;; End: *** |
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146 */ |
