Mercurial > hg > octave-nkf
annotate src/pt-loop.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 | 3100283874d7 |
| rev | line source |
|---|---|
| 2982 | 1 /* |
| 2 | |
| 7017 | 3 Copyright (C) 1996, 1997, 2000, 2002, 2004, 2005, 2006, 2007 |
| 4 John W. Eaton | |
| 2982 | 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. | |
| 2982 | 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/>. | |
| 2982 | 21 |
| 22 */ | |
| 23 | |
| 24 #if !defined (octave_tree_loop_h) | |
| 25 #define octave_tree_loop_h 1 | |
| 26 | |
| 27 class octave_value; | |
| 28 class octave_lvalue; | |
| 29 | |
| 30 class tree_argument_list; | |
| 31 class tree_expression; | |
| 32 class tree_statement_list; | |
| 33 | |
| 34 class tree_walker; | |
| 35 | |
| 3665 | 36 #include "comment-list.h" |
| 2982 | 37 #include "pt-cmd.h" |
| 7336 | 38 #include "symtab.h" |
| 2982 | 39 |
| 3877 | 40 // TRUE means we are evaluating some kind of looping construct. |
| 41 extern bool evaluating_looping_command; | |
| 42 | |
| 2982 | 43 // While. |
| 44 | |
| 45 class | |
| 46 tree_while_command : public tree_command | |
| 47 { | |
| 48 public: | |
| 49 | |
| 50 tree_while_command (int l = -1, int c = -1) | |
| 3665 | 51 : tree_command (l, c), expr (0), list (0), lead_comm (0), |
| 52 trail_comm (0) { } | |
| 2982 | 53 |
| 3665 | 54 tree_while_command (tree_expression *e, |
| 55 octave_comment_list *lc = 0, | |
| 56 octave_comment_list *tc = 0, | |
| 57 int l = -1, int c = -1) | |
| 58 : tree_command (l, c), expr (e), list (0), lead_comm (lc), | |
| 59 trail_comm (tc) { } | |
| 2982 | 60 |
| 61 tree_while_command (tree_expression *e, tree_statement_list *lst, | |
| 3665 | 62 octave_comment_list *lc = 0, |
| 63 octave_comment_list *tc = 0, | |
| 2982 | 64 int l = -1, int c = -1) |
| 3665 | 65 : tree_command (l, c), expr (e), list (lst), lead_comm (lc), |
| 66 trail_comm (tc) { } | |
| 2982 | 67 |
| 68 ~tree_while_command (void); | |
| 69 | |
| 70 void eval (void); | |
| 71 | |
| 72 void eval_error (void); | |
| 73 | |
| 74 tree_expression *condition (void) { return expr; } | |
| 75 | |
| 76 tree_statement_list *body (void) { return list; } | |
| 77 | |
| 3665 | 78 octave_comment_list *leading_comment (void) { return lead_comm; } |
| 79 | |
| 80 octave_comment_list *trailing_comment (void) { return trail_comm; } | |
| 81 | |
|
7767
71f068b22fcc
scope and context fixes for function handles
John W. Eaton <jwe@octave.org>
parents:
7336
diff
changeset
|
82 tree_command *dup (symbol_table::scope_id scope, |
|
71f068b22fcc
scope and context fixes for function handles
John W. Eaton <jwe@octave.org>
parents:
7336
diff
changeset
|
83 symbol_table::context_id context); |
| 5861 | 84 |
| 2982 | 85 void accept (tree_walker& tw); |
| 86 | |
| 3484 | 87 protected: |
| 2982 | 88 |
| 89 // Expression to test. | |
| 90 tree_expression *expr; | |
| 91 | |
| 92 // List of commands to execute. | |
| 93 tree_statement_list *list; | |
| 2988 | 94 |
| 3665 | 95 // Comment preceding WHILE token. |
| 96 octave_comment_list *lead_comm; | |
| 97 | |
| 98 // Comment preceding ENDWHILE token. | |
| 99 octave_comment_list *trail_comm; | |
| 100 | |
| 3484 | 101 private: |
| 102 | |
| 2988 | 103 // No copying! |
| 104 | |
| 105 tree_while_command (const tree_while_command&); | |
| 106 | |
| 107 tree_while_command& operator = (const tree_while_command&); | |
| 2982 | 108 }; |
| 109 | |
| 3484 | 110 // Do-Until. |
| 111 | |
| 112 class | |
| 113 tree_do_until_command : public tree_while_command | |
| 114 { | |
| 115 public: | |
| 116 | |
| 117 tree_do_until_command (int l = -1, int c = -1) | |
| 118 : tree_while_command (l, c) { } | |
| 119 | |
| 3665 | 120 tree_do_until_command (tree_expression *e, |
| 121 octave_comment_list *lc = 0, | |
| 122 octave_comment_list *tc = 0, | |
| 123 int l = -1, int c = -1) | |
| 124 : tree_while_command (e, lc, tc, l, c) { } | |
| 3484 | 125 |
| 126 tree_do_until_command (tree_expression *e, tree_statement_list *lst, | |
| 3665 | 127 octave_comment_list *lc = 0, |
| 128 octave_comment_list *tc = 0, | |
| 129 int l = -1, int c = -1) | |
| 130 : tree_while_command (e, lst, lc, tc, l, c) { } | |
| 3484 | 131 |
| 132 ~tree_do_until_command (void) { } | |
| 133 | |
| 134 void eval (void); | |
| 135 | |
| 136 void eval_error (void); | |
| 137 | |
|
7767
71f068b22fcc
scope and context fixes for function handles
John W. Eaton <jwe@octave.org>
parents:
7336
diff
changeset
|
138 tree_command *dup (symbol_table::scope_id scope, |
|
71f068b22fcc
scope and context fixes for function handles
John W. Eaton <jwe@octave.org>
parents:
7336
diff
changeset
|
139 symbol_table::context_id context); |
| 5861 | 140 |
| 3484 | 141 void accept (tree_walker& tw); |
| 142 | |
| 143 private: | |
| 144 | |
| 145 // No copying! | |
| 146 | |
| 147 tree_do_until_command (const tree_do_until_command&); | |
| 148 | |
| 149 tree_do_until_command& operator = (const tree_do_until_command&); | |
| 150 }; | |
| 151 | |
| 2982 | 152 // For. |
| 153 | |
| 154 class | |
| 155 tree_simple_for_command : public tree_command | |
| 156 { | |
| 157 public: | |
| 158 | |
| 159 tree_simple_for_command (int l = -1, int c = -1) | |
| 3665 | 160 : tree_command (l, c), lhs (0), expr (0), list (0), lead_comm (0), |
| 161 trail_comm (0) { } | |
| 2982 | 162 |
| 163 tree_simple_for_command (tree_expression *le, tree_expression *re, | |
| 3665 | 164 tree_statement_list *lst, |
| 165 octave_comment_list *lc = 0, | |
| 166 octave_comment_list *tc = 0, | |
| 167 int l = -1, int c = -1) | |
| 168 : tree_command (l, c), lhs (le), expr (re), list (lst), | |
| 169 lead_comm (lc), trail_comm (tc) { } | |
| 2982 | 170 |
| 171 ~tree_simple_for_command (void); | |
| 172 | |
| 173 void eval (void); | |
| 174 | |
| 175 void eval_error (void); | |
| 176 | |
| 177 tree_expression *left_hand_side (void) { return lhs; } | |
| 178 | |
| 179 tree_expression *control_expr (void) { return expr; } | |
| 180 | |
| 181 tree_statement_list *body (void) { return list; } | |
| 182 | |
| 3665 | 183 octave_comment_list *leading_comment (void) { return lead_comm; } |
| 184 | |
| 185 octave_comment_list *trailing_comment (void) { return trail_comm; } | |
| 186 | |
|
7767
71f068b22fcc
scope and context fixes for function handles
John W. Eaton <jwe@octave.org>
parents:
7336
diff
changeset
|
187 tree_command *dup (symbol_table::scope_id scope, |
|
71f068b22fcc
scope and context fixes for function handles
John W. Eaton <jwe@octave.org>
parents:
7336
diff
changeset
|
188 symbol_table::context_id context); |
| 5861 | 189 |
| 2982 | 190 void accept (tree_walker& tw); |
| 191 | |
| 192 private: | |
| 193 | |
| 194 // Expression to modify. | |
| 195 tree_expression *lhs; | |
| 196 | |
| 197 // Expression to evaluate. | |
| 198 tree_expression *expr; | |
| 199 | |
| 200 // List of commands to execute. | |
| 201 tree_statement_list *list; | |
| 202 | |
| 3665 | 203 // Comment preceding FOR token. |
| 204 octave_comment_list *lead_comm; | |
| 205 | |
| 206 // Comment preceding ENDFOR token. | |
| 207 octave_comment_list *trail_comm; | |
| 208 | |
| 2982 | 209 void do_for_loop_once (octave_lvalue &ult, const octave_value& rhs, |
| 210 bool& quit); | |
| 2988 | 211 |
| 212 // No copying! | |
| 213 | |
| 214 tree_simple_for_command (const tree_simple_for_command&); | |
| 215 | |
| 216 tree_simple_for_command& operator = (const tree_simple_for_command&); | |
| 2982 | 217 }; |
| 218 | |
| 219 class | |
| 220 tree_complex_for_command : public tree_command | |
| 221 { | |
| 222 public: | |
| 223 | |
| 224 tree_complex_for_command (int l = -1, int c = -1) | |
| 3665 | 225 : tree_command (l, c), lhs (0), expr (0), list (0), lead_comm (0), |
| 226 trail_comm (0) { } | |
| 2982 | 227 |
| 228 tree_complex_for_command (tree_argument_list *le, tree_expression *re, | |
| 3665 | 229 tree_statement_list *lst, |
| 230 octave_comment_list *lc = 0, | |
| 231 octave_comment_list *tc = 0, | |
| 232 int l = -1, int c = -1) | |
| 233 : tree_command (l, c), lhs (le), expr (re), list (lst), | |
| 234 lead_comm (lc), trail_comm (tc) { } | |
| 2982 | 235 |
| 236 ~tree_complex_for_command (void); | |
| 237 | |
| 238 void eval (void); | |
| 239 | |
| 240 void eval_error (void); | |
| 241 | |
| 242 tree_argument_list *left_hand_side (void) { return lhs; } | |
| 243 | |
| 244 tree_expression *control_expr (void) { return expr; } | |
| 245 | |
| 246 tree_statement_list *body (void) { return list; } | |
| 247 | |
| 3665 | 248 octave_comment_list *leading_comment (void) { return lead_comm; } |
| 249 | |
| 250 octave_comment_list *trailing_comment (void) { return trail_comm; } | |
| 251 | |
|
7767
71f068b22fcc
scope and context fixes for function handles
John W. Eaton <jwe@octave.org>
parents:
7336
diff
changeset
|
252 tree_command *dup (symbol_table::scope_id scope, |
|
71f068b22fcc
scope and context fixes for function handles
John W. Eaton <jwe@octave.org>
parents:
7336
diff
changeset
|
253 symbol_table::context_id context); |
| 5861 | 254 |
| 2982 | 255 void accept (tree_walker& tw); |
| 256 | |
| 257 private: | |
| 258 | |
| 259 // Expression to modify. | |
| 260 tree_argument_list *lhs; | |
| 261 | |
| 262 // Expression to evaluate. | |
| 263 tree_expression *expr; | |
| 264 | |
| 265 // List of commands to execute. | |
| 266 tree_statement_list *list; | |
| 267 | |
| 3665 | 268 // Comment preceding FOR token. |
| 269 octave_comment_list *lead_comm; | |
| 270 | |
| 271 // Comment preceding ENDFOR token. | |
| 272 octave_comment_list *trail_comm; | |
| 273 | |
| 2982 | 274 void do_for_loop_once (octave_lvalue &val_ref, octave_lvalue &key_ref, |
| 275 const octave_value& val, const octave_value& key, | |
| 276 bool& quit); | |
| 2988 | 277 |
| 278 // No copying! | |
| 279 | |
| 280 tree_complex_for_command (const tree_complex_for_command&); | |
| 281 | |
| 282 tree_complex_for_command& operator = (const tree_complex_for_command&); | |
| 2982 | 283 }; |
| 284 | |
| 285 #endif | |
| 286 | |
| 287 /* | |
| 288 ;;; Local Variables: *** | |
| 289 ;;; mode: C++ *** | |
| 290 ;;; End: *** | |
| 291 */ |