Mercurial > hg > octave-nkf
annotate src/pt-select.h @ 12113:232a0ddce7cd release-3-2-x
toplev.cc: handle exceptions while preparing to exit
| author | John W. Eaton <jwe@octave.org> |
|---|---|
| date | Thu, 23 Jul 2009 14:24:45 -0400 |
| parents | eb63fbe60fab |
| children | cd96d29c5efa |
| rev | line source |
|---|---|
| 2982 | 1 /* |
| 2 | |
| 8920 | 3 Copyright (C) 1996, 1997, 2000, 2002, 2004, 2005, 2006, 2007, 2008, 2009 |
| 7017 | 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_select_h) | |
| 25 #define octave_tree_select_h 1 | |
| 26 | |
| 27 class expression; | |
| 28 class tree_statement_list; | |
| 29 | |
| 30 class tree_walker; | |
| 31 | |
| 4219 | 32 #include "base-list.h" |
| 3665 | 33 #include "comment-list.h" |
| 2982 | 34 #include "pt-cmd.h" |
| 7336 | 35 #include "symtab.h" |
| 2982 | 36 |
| 37 // If. | |
| 38 | |
| 39 class | |
|
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40 tree_if_clause : public tree |
| 2982 | 41 { |
| 42 public: | |
| 43 | |
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44 tree_if_clause (int l = -1, int c = -1) |
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45 : tree (l, c), expr (0), list (0), lead_comm (0) { } |
| 2982 | 46 |
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47 tree_if_clause (tree_statement_list *sl, octave_comment_list *lc = 0, |
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48 int l = -1, int c = -1) |
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49 : tree (l, c), expr (0), list (sl), lead_comm (lc) { } |
| 2982 | 50 |
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51 tree_if_clause (tree_expression *e, tree_statement_list *sl, |
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52 octave_comment_list *lc = 0, |
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53 int l = -1, int c = -1) |
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54 : tree (l, c), expr (e), list (sl), lead_comm (lc) { } |
| 2982 | 55 |
| 56 ~tree_if_clause (void); | |
| 57 | |
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58 bool is_else_clause (void) { return ! expr; } |
| 2982 | 59 |
| 60 tree_expression *condition (void) { return expr; } | |
| 61 | |
| 62 tree_statement_list *commands (void) { return list; } | |
| 63 | |
| 3665 | 64 octave_comment_list *leading_comment (void) { return lead_comm; } |
| 65 | |
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66 tree_if_clause *dup (symbol_table::scope_id scope, |
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67 symbol_table::context_id context) const; |
| 5861 | 68 |
| 2982 | 69 void accept (tree_walker& tw); |
| 70 | |
| 71 private: | |
| 72 | |
| 73 // The condition to test. | |
| 74 tree_expression *expr; | |
| 75 | |
| 76 // The list of statements to evaluate if expr is true. | |
| 77 tree_statement_list *list; | |
| 2988 | 78 |
| 3665 | 79 // Comment preceding ELSE or ELSEIF token. |
| 80 octave_comment_list *lead_comm; | |
| 81 | |
| 2988 | 82 // No copying! |
| 83 | |
| 84 tree_if_clause (const tree_if_clause&); | |
| 85 | |
| 86 tree_if_clause& operator = (const tree_if_clause&); | |
| 2982 | 87 }; |
| 88 | |
| 89 class | |
| 4219 | 90 tree_if_command_list : public octave_base_list<tree_if_clause *> |
| 2982 | 91 { |
| 92 public: | |
| 93 | |
| 4219 | 94 tree_if_command_list (void) { } |
| 2982 | 95 |
| 4219 | 96 tree_if_command_list (tree_if_clause *t) { append (t); } |
| 2982 | 97 |
| 98 ~tree_if_command_list (void) | |
| 99 { | |
| 4219 | 100 while (! empty ()) |
| 2982 | 101 { |
| 4219 | 102 iterator p = begin (); |
| 103 delete *p; | |
| 104 erase (p); | |
| 2982 | 105 } |
| 106 } | |
| 107 | |
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108 tree_if_command_list *dup (symbol_table::scope_id scope, |
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109 symbol_table::context_id context) const; |
| 5861 | 110 |
| 2982 | 111 void accept (tree_walker& tw); |
| 2988 | 112 |
| 113 private: | |
| 114 | |
| 115 // No copying! | |
| 116 | |
| 117 tree_if_command_list (const tree_if_command_list&); | |
| 118 | |
| 119 tree_if_command_list& operator = (const tree_if_command_list&); | |
| 2982 | 120 }; |
| 121 | |
| 122 class | |
| 123 tree_if_command : public tree_command | |
| 124 { | |
| 125 public: | |
| 126 | |
| 127 tree_if_command (int l = -1, int c = -1) | |
| 3665 | 128 : tree_command (l, c), list (0), lead_comm (0), trail_comm (0) { } |
| 2982 | 129 |
| 3665 | 130 tree_if_command (tree_if_command_list *lst, octave_comment_list *lc, |
| 131 octave_comment_list *tc, int l = -1, int c = -1) | |
| 132 : tree_command (l, c), list (lst), lead_comm (lc), trail_comm (tc) { } | |
| 2982 | 133 |
| 134 ~tree_if_command (void); | |
| 135 | |
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136 void set_breakpoint (void); |
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137 |
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138 void delete_breakpoint (void); |
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139 |
| 2982 | 140 tree_if_command_list *cmd_list (void) { return list; } |
| 141 | |
| 3665 | 142 octave_comment_list *leading_comment (void) { return lead_comm; } |
| 143 | |
| 144 octave_comment_list *trailing_comment (void) { return trail_comm; } | |
| 145 | |
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146 tree_command *dup (symbol_table::scope_id scope, |
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147 symbol_table::context_id context) const; |
| 5861 | 148 |
| 2982 | 149 void accept (tree_walker& tw); |
| 150 | |
| 151 private: | |
| 152 | |
| 153 // List of if commands (if, elseif, elseif, ... else, endif) | |
| 154 tree_if_command_list *list; | |
| 2988 | 155 |
| 3665 | 156 // Comment preceding IF token. |
| 157 octave_comment_list *lead_comm; | |
| 158 | |
| 159 // Comment preceding ENDIF token. | |
| 160 octave_comment_list *trail_comm; | |
| 161 | |
| 2988 | 162 // No copying! |
| 163 | |
| 164 tree_if_command (const tree_if_command&); | |
| 165 | |
| 166 tree_if_command& operator = (const tree_if_command&); | |
| 2982 | 167 }; |
| 168 | |
| 169 // Switch. | |
| 170 | |
| 171 class | |
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172 tree_switch_case : public tree |
| 2982 | 173 { |
| 174 public: | |
| 175 | |
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176 tree_switch_case (int l = -1, int c = -1) |
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177 : tree (l, c), label (0), list (0), lead_comm (0) { } |
| 2982 | 178 |
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179 tree_switch_case (tree_statement_list *sl, octave_comment_list *lc = 0, |
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180 int l = -1, int c = -1) |
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181 : tree (l, c), label (0), list (sl), lead_comm (lc) { } |
| 2982 | 182 |
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183 tree_switch_case (tree_expression *e, tree_statement_list *sl, |
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184 octave_comment_list *lc = 0, |
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185 int l = -1, int c = -1) |
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186 : tree (l, c), label (e), list (sl), lead_comm (lc) { } |
| 2982 | 187 |
| 188 ~tree_switch_case (void); | |
| 189 | |
| 3933 | 190 bool is_default_case (void) { return ! label; } |
| 2982 | 191 |
| 192 bool label_matches (const octave_value& val); | |
| 193 | |
| 194 tree_expression *case_label (void) { return label; } | |
| 195 | |
| 196 tree_statement_list *commands (void) { return list; } | |
| 197 | |
| 3665 | 198 octave_comment_list *leading_comment (void) { return lead_comm; } |
| 199 | |
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200 tree_switch_case *dup (symbol_table::scope_id scope, |
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201 symbol_table::context_id context) const; |
| 5861 | 202 |
| 2982 | 203 void accept (tree_walker& tw); |
| 204 | |
| 205 private: | |
| 206 | |
| 207 // The case label. | |
| 208 tree_expression *label; | |
| 209 | |
| 210 // The list of statements to evaluate if the label matches. | |
| 211 tree_statement_list *list; | |
| 2988 | 212 |
| 3665 | 213 // Comment preceding CASE or OTHERWISE token. |
| 214 octave_comment_list *lead_comm; | |
| 215 | |
| 2988 | 216 // No copying! |
| 217 | |
| 218 tree_switch_case (const tree_switch_case&); | |
| 219 | |
| 220 tree_switch_case& operator = (const tree_switch_case&); | |
| 2982 | 221 }; |
| 222 | |
| 223 class | |
| 4219 | 224 tree_switch_case_list : public octave_base_list<tree_switch_case *> |
| 2982 | 225 { |
| 226 public: | |
| 227 | |
| 4219 | 228 tree_switch_case_list (void) { } |
| 2982 | 229 |
| 4219 | 230 tree_switch_case_list (tree_switch_case *t) { append (t); } |
| 2982 | 231 |
| 232 ~tree_switch_case_list (void) | |
| 233 { | |
| 4219 | 234 while (! empty ()) |
| 2982 | 235 { |
| 4219 | 236 iterator p = begin (); |
| 237 delete *p; | |
| 238 erase (p); | |
| 2982 | 239 } |
| 240 } | |
| 241 | |
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242 tree_switch_case_list *dup (symbol_table::scope_id scope, |
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243 symbol_table::context_id context) const; |
| 5861 | 244 |
| 2982 | 245 void accept (tree_walker& tw); |
| 2988 | 246 |
| 247 private: | |
| 248 | |
| 249 // No copying! | |
| 250 | |
| 251 tree_switch_case_list (const tree_switch_case_list&); | |
| 252 | |
| 253 tree_switch_case_list& operator = (const tree_switch_case_list&); | |
| 2982 | 254 }; |
| 255 | |
| 256 class | |
| 257 tree_switch_command : public tree_command | |
| 258 { | |
| 259 public: | |
| 260 | |
| 261 tree_switch_command (int l = -1, int c = -1) | |
| 3665 | 262 : tree_command (l, c), expr (0), list (0), lead_comm (0), |
| 263 trail_comm (0) { } | |
| 2982 | 264 |
| 265 tree_switch_command (tree_expression *e, tree_switch_case_list *lst, | |
| 3665 | 266 octave_comment_list *lc, octave_comment_list *tc, |
| 2982 | 267 int l = -1, int c = -1) |
| 3665 | 268 : tree_command (l, c), expr (e), list (lst), lead_comm (lc), |
| 269 trail_comm (tc) { } | |
| 2982 | 270 |
| 271 ~tree_switch_command (void); | |
| 272 | |
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273 void set_breakpoint (void); |
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274 |
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275 void delete_breakpoint (void); |
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276 |
| 2982 | 277 tree_expression *switch_value (void) { return expr; } |
| 278 | |
| 279 tree_switch_case_list *case_list (void) { return list; } | |
| 280 | |
| 3665 | 281 octave_comment_list *leading_comment (void) { return lead_comm; } |
| 282 | |
| 283 octave_comment_list *trailing_comment (void) { return trail_comm; } | |
| 284 | |
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285 tree_command *dup (symbol_table::scope_id scope, |
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286 symbol_table::context_id context) const; |
| 5861 | 287 |
| 2982 | 288 void accept (tree_walker& tw); |
| 289 | |
| 290 private: | |
| 291 | |
| 292 // Value on which to switch. | |
| 293 tree_expression *expr; | |
| 294 | |
| 295 // List of cases (case 1, case 2, ..., default) | |
| 296 tree_switch_case_list *list; | |
| 2988 | 297 |
| 3665 | 298 // Comment preceding SWITCH token. |
| 299 octave_comment_list *lead_comm; | |
| 300 | |
| 301 // Comment preceding ENDSWITCH token. | |
| 302 octave_comment_list *trail_comm; | |
| 303 | |
| 2988 | 304 // No copying! |
| 305 | |
| 306 tree_switch_command (const tree_switch_command&); | |
| 307 | |
| 308 tree_switch_command& operator = (const tree_switch_command&); | |
| 2982 | 309 }; |
| 310 | |
| 311 #endif | |
| 312 | |
| 313 /* | |
| 314 ;;; Local Variables: *** | |
| 315 ;;; mode: C++ *** | |
| 316 ;;; End: *** | |
| 317 */ |