Mercurial > octave
annotate libinterp/parse-tree/pt-unop.h @ 23220:092078913d54
maint: Merge stable to default.
author | John W. Eaton <jwe@octave.org> |
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date | Wed, 22 Feb 2017 12:58:07 -0500 |
parents | ef4d915df748 3ac9f9ecfae5 |
children | 50fc8edb007b |
rev | line source |
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2980 | 1 /* |
2 | |
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3 Copyright (C) 1996-2017 John W. Eaton |
2980 | 4 |
5 This file is part of Octave. | |
6 | |
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. |
2980 | 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. |
2980 | 16 |
17 You should have received a copy of the GNU General Public License | |
7016 | 18 along with Octave; see the file COPYING. If not, see |
19 <http://www.gnu.org/licenses/>. | |
2980 | 20 |
21 */ | |
22 | |
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23 #if ! defined (octave_pt_unop_h) |
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24 #define octave_pt_unop_h 1 |
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26 #include "octave-config.h" |
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27 |
2980 | 28 #include <string> |
29 | |
30 class octave_value; | |
31 class octave_value_list; | |
32 class octave_lvalue; | |
33 | |
34 #include "pt-exp.h" | |
7336 | 35 #include "symtab.h" |
2980 | 36 |
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37 namespace octave |
2980 | 38 { |
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39 class tree_walker; |
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40 |
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41 // Unary expressions. |
2980 | 42 |
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43 class tree_unary_expression : public tree_expression |
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44 { |
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45 public: |
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46 |
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47 tree_unary_expression (int l = -1, int c = -1, |
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48 octave_value::unary_op t |
10313 | 49 = octave_value::unknown_unary_op) |
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50 : tree_expression (l, c), op (0), etype (t) { } |
2980 | 51 |
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52 tree_unary_expression (tree_expression *e, int l = -1, int c = -1, |
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53 octave_value::unary_op t |
10313 | 54 = octave_value::unknown_unary_op) |
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55 : tree_expression (l, c), op (e), etype (t) { } |
2980 | 56 |
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57 // No copying! |
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59 tree_unary_expression (const tree_unary_expression&) = delete; |
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60 |
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61 tree_unary_expression& operator = (const tree_unary_expression&) = delete; |
4267 | 62 |
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63 ~tree_unary_expression (void) { delete op; } |
2980 | 64 |
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65 bool is_unary_expression (void) const { return true; } |
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66 |
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67 bool has_magic_end (void) const { return (op && op->has_magic_end ()); } |
3203 | 68 |
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69 tree_expression *operand (void) { return op; } |
2980 | 70 |
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71 std::string oper (void) const; |
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72 |
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73 octave_value::unary_op op_type (void) const { return etype; } |
2988 | 74 |
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75 protected: |
3203 | 76 |
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77 // The operand for the expression. |
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78 tree_expression *op; |
3203 | 79 |
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80 // The type of the expression. |
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81 octave_value::unary_op etype; |
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82 }; |
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84 // Prefix expressions. |
2980 | 85 |
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86 class tree_prefix_expression : public tree_unary_expression |
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87 { |
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88 public: |
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89 |
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90 tree_prefix_expression (int l = -1, int c = -1) |
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91 : tree_unary_expression (l, c, octave_value::unknown_unary_op) { } |
2980 | 92 |
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93 tree_prefix_expression (tree_expression *e, int l = -1, int c = -1, |
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94 octave_value::unary_op t |
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95 = octave_value::unknown_unary_op) |
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96 : tree_unary_expression (e, l, c, t) { } |
2980 | 97 |
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98 // No copying! |
2980 | 99 |
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100 tree_prefix_expression (const tree_prefix_expression&) = delete; |
2980 | 101 |
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102 tree_prefix_expression& operator = (const tree_prefix_expression&) = delete; |
2980 | 103 |
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104 ~tree_prefix_expression (void) = default; |
2980 | 105 |
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106 bool rvalue_ok (void) const { return true; } |
2980 | 107 |
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108 octave_value rvalue1 (int nargout = 1); |
2980 | 109 |
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110 octave_value_list rvalue (int nargout); |
2980 | 111 |
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112 tree_expression *dup (symbol_table::scope_id scope, |
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113 symbol_table::context_id context) const; |
5861 | 114 |
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115 void accept (tree_walker& tw); |
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116 |
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117 std::string profiler_name (void) const { return "prefix " + oper (); } |
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118 }; |
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120 // Postfix expressions. |
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122 class tree_postfix_expression : public tree_unary_expression |
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123 { |
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124 public: |
2980 | 125 |
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126 tree_postfix_expression (int l = -1, int c = -1) |
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127 : tree_unary_expression (l, c, octave_value::unknown_unary_op) { } |
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128 |
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129 tree_postfix_expression (tree_expression *e, int l = -1, int c = -1, |
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130 octave_value::unary_op t |
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131 = octave_value::unknown_unary_op) |
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132 : tree_unary_expression (e, l, c, t) { } |
2980 | 133 |
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134 // No copying! |
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135 |
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136 tree_postfix_expression (const tree_postfix_expression&) = delete; |
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138 tree_postfix_expression& operator = (const tree_postfix_expression&) = delete; |
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139 |
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140 ~tree_postfix_expression (void) = default; |
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142 bool rvalue_ok (void) const { return true; } |
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144 octave_value rvalue1 (int nargout = 1); |
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146 octave_value_list rvalue (int nargout); |
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148 tree_expression *dup (symbol_table::scope_id scope, |
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149 symbol_table::context_id context) const; |
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151 void accept (tree_walker& tw); |
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153 std::string profiler_name (void) const { return "postfix " + oper (); } |
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154 }; |
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155 } |
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157 #if defined (OCTAVE_USE_DEPRECATED_FUNCTIONS) |
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158 |
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159 OCTAVE_DEPRECATED ("use 'octave::tree_unary_expression' instead") |
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160 typedef octave::tree_unary_expression tree_unary_expression; |
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162 OCTAVE_DEPRECATED ("use 'octave::tree_prefix_expression' instead") |
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163 typedef octave::tree_prefix_expression tree_prefix_expression; |
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165 OCTAVE_DEPRECATED ("use 'octave::tree_postfix_expression' instead") |
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166 typedef octave::tree_postfix_expression tree_postfix_expression; |
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168 #endif | |
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169 |
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170 #endif |