Mercurial > hg > octave-jordi
annotate src/pt-unop.h @ 7767:71f068b22fcc
scope and context fixes for function handles
| author | John W. Eaton <jwe@octave.org> |
|---|---|
| date | Wed, 07 May 2008 13:45:30 -0400 |
| parents | 745a8299c2b5 |
| children | 5861b95e9879 |
| rev | line source |
|---|---|
| 2980 | 1 /* |
| 2 | |
| 7017 | 3 Copyright (C) 1996, 1997, 1998, 2000, 2002, 2003, 2004, 2005, 2006, |
| 4 2007 John W. Eaton | |
| 2980 | 5 |
| 6 This file is part of Octave. | |
| 7 | |
| 8 Octave is free software; you can redistribute it and/or modify it | |
| 9 under the terms of the GNU General Public License as published by the | |
| 7016 | 10 Free Software Foundation; either version 3 of the License, or (at your |
| 11 option) any later version. | |
| 2980 | 12 |
| 13 Octave is distributed in the hope that it will be useful, but WITHOUT | |
| 14 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 16 for more details. | |
| 17 | |
| 18 You should have received a copy of the GNU General Public License | |
| 7016 | 19 along with Octave; see the file COPYING. If not, see |
| 20 <http://www.gnu.org/licenses/>. | |
| 2980 | 21 |
| 22 */ | |
| 23 | |
| 24 #if !defined (octave_tree_unop_h) | |
| 25 #define octave_tree_unop_h 1 | |
| 26 | |
| 27 #include <string> | |
| 28 | |
| 29 class tree_walker; | |
| 30 | |
| 31 class octave_value; | |
| 32 class octave_value_list; | |
| 33 class octave_lvalue; | |
| 34 | |
| 35 #include "pt-exp.h" | |
| 7336 | 36 #include "symtab.h" |
| 2980 | 37 |
| 38 // Unary expressions. | |
| 39 | |
| 40 class | |
| 41 tree_unary_expression : public tree_expression | |
| 42 { | |
| 43 public: | |
| 44 | |
| 3203 | 45 tree_unary_expression (int l = -1, int c = -1, |
| 46 octave_value::unary_op t | |
| 47 = octave_value::unknown_unary_op) | |
| 48 : tree_expression (l, c), op (0), etype (t) { } | |
| 2980 | 49 |
| 3203 | 50 tree_unary_expression (tree_expression *e, int l = -1, int c = -1, |
| 51 octave_value::unary_op t | |
| 52 = octave_value::unknown_unary_op) | |
| 53 : tree_expression (l, c), op (e), etype (t) { } | |
| 2980 | 54 |
| 55 ~tree_unary_expression (void) { delete op; } | |
| 56 | |
| 4267 | 57 bool has_magic_end (void) const { return (op && op->has_magic_end ()); } |
| 58 | |
| 2980 | 59 tree_expression *operand (void) { return op; } |
| 60 | |
| 3523 | 61 std::string oper (void) const; |
| 7087 | 62 |
| 63 octave_value::unary_op op_type (void) const { return etype; } | |
| 3203 | 64 |
| 2980 | 65 protected: |
| 66 | |
| 67 // The operand for the expression. | |
| 68 tree_expression *op; | |
| 2988 | 69 |
| 3203 | 70 // The type of the expression. |
| 71 octave_value::unary_op etype; | |
| 72 | |
| 73 private: | |
| 74 | |
| 2988 | 75 // No copying! |
| 76 | |
| 77 tree_unary_expression (const tree_unary_expression&); | |
| 78 | |
| 79 tree_unary_expression& operator = (const tree_unary_expression&); | |
| 2980 | 80 }; |
| 81 | |
| 82 // Prefix expressions. | |
| 83 | |
| 84 class | |
| 85 tree_prefix_expression : public tree_unary_expression | |
| 86 { | |
| 87 public: | |
| 88 | |
| 89 tree_prefix_expression (int l = -1, int c = -1) | |
| 3203 | 90 : tree_unary_expression (l, c, octave_value::unknown_unary_op) { } |
| 2980 | 91 |
| 3195 | 92 tree_prefix_expression (tree_expression *e, int l = -1, int c = -1, |
| 3203 | 93 octave_value::unary_op t |
| 94 = octave_value::unknown_unary_op) | |
| 95 : tree_unary_expression (e, l, c, t) { } | |
| 2980 | 96 |
| 97 ~tree_prefix_expression (void) { } | |
| 98 | |
| 3933 | 99 bool rvalue_ok (void) const { return true; } |
| 2980 | 100 |
| 101 octave_value rvalue (void); | |
| 102 | |
| 3010 | 103 octave_value_list rvalue (int nargout); |
| 2980 | 104 |
| 105 void eval_error (void); | |
| 106 | |
|
7767
71f068b22fcc
scope and context fixes for function handles
John W. Eaton <jwe@octave.org>
parents:
7336
diff
changeset
|
107 tree_expression *dup (symbol_table::scope_id scope, |
|
71f068b22fcc
scope and context fixes for function handles
John W. Eaton <jwe@octave.org>
parents:
7336
diff
changeset
|
108 symbol_table::context_id context); |
| 5861 | 109 |
| 2980 | 110 void accept (tree_walker& tw); |
| 111 | |
| 112 private: | |
| 113 | |
| 2988 | 114 // No copying! |
| 115 | |
| 116 tree_prefix_expression (const tree_prefix_expression&); | |
| 117 | |
| 118 tree_prefix_expression& operator = (const tree_prefix_expression&); | |
| 2980 | 119 }; |
| 120 | |
| 121 // Postfix expressions. | |
| 122 | |
| 123 class | |
| 124 tree_postfix_expression : public tree_unary_expression | |
| 125 { | |
| 126 public: | |
| 127 | |
| 128 tree_postfix_expression (int l = -1, int c = -1) | |
| 3203 | 129 : tree_unary_expression (l, c, octave_value::unknown_unary_op) { } |
| 2980 | 130 |
| 3195 | 131 tree_postfix_expression (tree_expression *e, int l = -1, int c = -1, |
| 3203 | 132 octave_value::unary_op t |
| 133 = octave_value::unknown_unary_op) | |
| 134 : tree_unary_expression (e, l, c, t) { } | |
| 2980 | 135 |
| 136 ~tree_postfix_expression (void) { } | |
| 137 | |
| 3933 | 138 bool rvalue_ok (void) const { return true; } |
| 2980 | 139 |
| 140 octave_value rvalue (void); | |
| 141 | |
| 142 octave_value_list rvalue (int nargout); | |
| 143 | |
| 144 void eval_error (void); | |
| 145 | |
|
7767
71f068b22fcc
scope and context fixes for function handles
John W. Eaton <jwe@octave.org>
parents:
7336
diff
changeset
|
146 tree_expression *dup (symbol_table::scope_id scope, |
|
71f068b22fcc
scope and context fixes for function handles
John W. Eaton <jwe@octave.org>
parents:
7336
diff
changeset
|
147 symbol_table::context_id context); |
| 5861 | 148 |
| 2980 | 149 void accept (tree_walker& tw); |
| 150 | |
| 151 private: | |
| 152 | |
| 2988 | 153 // No copying! |
| 154 | |
| 155 tree_postfix_expression (const tree_postfix_expression&); | |
| 156 | |
| 157 tree_postfix_expression& operator = (const tree_postfix_expression&); | |
| 2980 | 158 }; |
| 159 | |
| 160 #endif | |
| 161 | |
| 162 /* | |
| 163 ;;; Local Variables: *** | |
| 164 ;;; mode: C++ *** | |
| 165 ;;; End: *** | |
| 166 */ |