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update Octave Project Developers copyright for the new year In files that have the "Octave Project Developers" copyright notice, update for 2020.
author John W. Eaton <jwe@octave.org>
date Mon, 06 Jan 2020 22:29:51 -0500
parents b442ec6dda5c
children bd51beb6205e
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1 /*
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2
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3 Copyright (C) 1994-2020 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 distribution
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6 or <https://octave.org/COPYRIGHT.html/>.
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7
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8
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9 This file is part of Octave.
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10
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11 Octave is free software: you can redistribute it and/or modify it
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12 under the terms of the GNU General Public License as published by
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13 the Free Software Foundation, either version 3 of the License, or
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14 (at your option) any later version.
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15
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16 Octave is distributed in the hope that it will be useful, but
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17 WITHOUT ANY WARRANTY; without even the implied warranty of
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18 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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19 GNU General Public License for more details.
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21 You should have received a copy of the GNU General Public License
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22 along with Octave; see the file COPYING. If not, see
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23 <https://www.gnu.org/licenses/>.
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24
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25 */
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26
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27 #if ! defined (octave_pt_misc_h)
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28 #define octave_pt_misc_h 1
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29
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30 #include "octave-config.h"
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31
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32 #include "base-list.h"
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33 #include "pt-decl.h"
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34 #include "pt-walk.h"
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35
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36 namespace octave
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37 {
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38 class symbol_scope;
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39 class tree_identifier;
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40 class tree_index_expression;
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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 tree_parameter_list : public base_list<tree_decl_elt *>
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47 {
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48 public:
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49
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50 enum in_or_out
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51 {
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52 in = 1,
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53 out = 2
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54 };
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55
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56 tree_parameter_list (void)
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57 : m_marked_for_varargs (0) { }
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58
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59 tree_parameter_list (tree_decl_elt *t)
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60 : m_marked_for_varargs (0) { append (t); }
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61
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62 tree_parameter_list (tree_identifier *id)
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63 : m_marked_for_varargs (0) { append (new tree_decl_elt (id)); }
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64
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65 // No copying!
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66
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67 tree_parameter_list (const tree_parameter_list&) = delete;
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68
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69 tree_parameter_list& operator = (const tree_parameter_list&) = delete;
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70
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71 ~tree_parameter_list (void);
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72
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73 void mark_as_formal_parameters (void);
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74
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75 void mark_varargs (void) { m_marked_for_varargs = 1; }
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76
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77 void mark_varargs_only (void) { m_marked_for_varargs = -1; }
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78
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79 bool takes_varargs (void) const { return m_marked_for_varargs != 0; }
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80
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81 bool varargs_only (void) { return (m_marked_for_varargs < 0); }
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82
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83 std::list<std::string> variable_names (void) const;
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84
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85 tree_parameter_list * dup (symbol_scope& scope) const;
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86
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87 void accept (tree_walker& tw)
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88 {
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89 tw.visit_parameter_list (*this);
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90 }
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91
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92 private:
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93
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94 int m_marked_for_varargs;
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95 };
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96
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97 // Return lists. Used to hold the right hand sides of multiple
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98 // assignment expressions.
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99
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100 class tree_return_list : public base_list<tree_index_expression *>
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101 {
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102 public:
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103
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104 tree_return_list (void) { }
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105
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106 tree_return_list (tree_index_expression *t) { append (t); }
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107
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108 // No copying!
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109
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110 tree_return_list (const tree_return_list&) = delete;
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111
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112 tree_return_list& operator = (const tree_return_list&) = delete;
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113
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114 ~tree_return_list (void);
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115
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116 void accept (tree_walker& tw)
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117 {
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118 tw.visit_return_list (*this);
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119 }
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120 };
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121 }
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122
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123 #if defined (OCTAVE_USE_DEPRECATED_FUNCTIONS)
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124
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125 // tree_parameter_list is derived from a template.
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126 // tree_return_list is derived from a template.
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127
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128 #endif
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129
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130 #endif