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annotate libinterp/parse-tree/pt-select.h @ 19840:c5270263d466 gui-release
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| author | John W. Eaton <jwe@octave.org> |
|---|---|
| date | Fri, 30 Jan 2015 17:41:50 -0500 |
| parents | ebb3ef964372 |
| children | 4197fc428c7d |
| rev | line source |
|---|---|
| 2982 | 1 /* |
| 2 | |
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3 Copyright (C) 1996-2013 John W. Eaton |
| 2982 | 4 |
| 5 This file is part of Octave. | |
| 6 | |
| 7 Octave is free software; you can redistribute it and/or modify it | |
| 8 under the terms of the GNU General Public License as published by the | |
| 7016 | 9 Free Software Foundation; either version 3 of the License, or (at your |
| 10 option) any later version. | |
| 2982 | 11 |
| 12 Octave is distributed in the hope that it will be useful, but WITHOUT | |
| 13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 15 for more details. | |
| 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/>. | |
| 2982 | 20 |
| 21 */ | |
| 22 | |
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23 #if !defined (octave_pt_select_h) |
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24 #define octave_pt_select_h 1 |
| 2982 | 25 |
| 26 class expression; | |
| 27 class tree_statement_list; | |
| 28 | |
| 29 class tree_walker; | |
| 30 | |
| 4219 | 31 #include "base-list.h" |
| 3665 | 32 #include "comment-list.h" |
| 2982 | 33 #include "pt-cmd.h" |
| 7336 | 34 #include "symtab.h" |
| 2982 | 35 |
| 36 // If. | |
| 37 | |
| 38 class | |
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39 tree_if_clause : public tree |
| 2982 | 40 { |
| 41 public: | |
| 42 | |
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43 tree_if_clause (int l = -1, int c = -1) |
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44 : tree (l, c), expr (0), list (0), lead_comm (0) { } |
| 2982 | 45 |
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46 tree_if_clause (tree_statement_list *sl, octave_comment_list *lc = 0, |
| 10313 | 47 int l = -1, int c = -1) |
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48 : tree (l, c), expr (0), list (sl), lead_comm (lc) { } |
| 2982 | 49 |
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50 tree_if_clause (tree_expression *e, tree_statement_list *sl, |
| 10313 | 51 octave_comment_list *lc = 0, |
| 52 int l = -1, int c = -1) | |
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53 : tree (l, c), expr (e), list (sl), lead_comm (lc) { } |
| 2982 | 54 |
| 55 ~tree_if_clause (void); | |
| 56 | |
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57 bool is_else_clause (void) { return ! expr; } |
| 2982 | 58 |
| 59 tree_expression *condition (void) { return expr; } | |
| 60 | |
| 61 tree_statement_list *commands (void) { return list; } | |
| 62 | |
| 3665 | 63 octave_comment_list *leading_comment (void) { return lead_comm; } |
| 64 | |
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65 tree_if_clause *dup (symbol_table::scope_id scope, |
| 10313 | 66 symbol_table::context_id context) const; |
| 5861 | 67 |
| 2982 | 68 void accept (tree_walker& tw); |
| 69 | |
| 70 private: | |
| 71 | |
| 72 // The condition to test. | |
| 73 tree_expression *expr; | |
| 74 | |
| 75 // The list of statements to evaluate if expr is true. | |
| 76 tree_statement_list *list; | |
| 2988 | 77 |
| 3665 | 78 // Comment preceding ELSE or ELSEIF token. |
| 79 octave_comment_list *lead_comm; | |
| 80 | |
| 2988 | 81 // No copying! |
| 82 | |
| 83 tree_if_clause (const tree_if_clause&); | |
| 84 | |
| 85 tree_if_clause& operator = (const tree_if_clause&); | |
| 2982 | 86 }; |
| 87 | |
| 88 class | |
| 4219 | 89 tree_if_command_list : public octave_base_list<tree_if_clause *> |
| 2982 | 90 { |
| 91 public: | |
| 92 | |
| 4219 | 93 tree_if_command_list (void) { } |
| 2982 | 94 |
| 4219 | 95 tree_if_command_list (tree_if_clause *t) { append (t); } |
| 2982 | 96 |
| 97 ~tree_if_command_list (void) | |
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98 { |
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99 while (! empty ()) |
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100 { |
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101 iterator p = begin (); |
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102 delete *p; |
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103 erase (p); |
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104 } |
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105 } |
| 2982 | 106 |
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107 tree_if_command_list *dup (symbol_table::scope_id scope, |
| 10313 | 108 symbol_table::context_id context) const; |
| 5861 | 109 |
| 2982 | 110 void accept (tree_walker& tw); |
| 2988 | 111 |
| 112 private: | |
| 113 | |
| 114 // No copying! | |
| 115 | |
| 116 tree_if_command_list (const tree_if_command_list&); | |
| 117 | |
| 118 tree_if_command_list& operator = (const tree_if_command_list&); | |
| 2982 | 119 }; |
| 120 | |
| 121 class | |
| 122 tree_if_command : public tree_command | |
| 123 { | |
| 124 public: | |
| 125 | |
| 126 tree_if_command (int l = -1, int c = -1) | |
| 3665 | 127 : tree_command (l, c), list (0), lead_comm (0), trail_comm (0) { } |
| 2982 | 128 |
| 3665 | 129 tree_if_command (tree_if_command_list *lst, octave_comment_list *lc, |
| 10313 | 130 octave_comment_list *tc, int l = -1, int c = -1) |
| 3665 | 131 : tree_command (l, c), list (lst), lead_comm (lc), trail_comm (tc) { } |
| 2982 | 132 |
| 133 ~tree_if_command (void); | |
| 134 | |
| 135 tree_if_command_list *cmd_list (void) { return list; } | |
| 136 | |
| 3665 | 137 octave_comment_list *leading_comment (void) { return lead_comm; } |
| 138 | |
| 139 octave_comment_list *trailing_comment (void) { return trail_comm; } | |
| 140 | |
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141 tree_command *dup (symbol_table::scope_id scope, |
| 10313 | 142 symbol_table::context_id context) const; |
| 5861 | 143 |
| 2982 | 144 void accept (tree_walker& tw); |
| 145 | |
| 146 private: | |
| 147 | |
| 148 // List of if commands (if, elseif, elseif, ... else, endif) | |
| 149 tree_if_command_list *list; | |
| 2988 | 150 |
| 3665 | 151 // Comment preceding IF token. |
| 152 octave_comment_list *lead_comm; | |
| 153 | |
| 154 // Comment preceding ENDIF token. | |
| 155 octave_comment_list *trail_comm; | |
| 156 | |
| 2988 | 157 // No copying! |
| 158 | |
| 159 tree_if_command (const tree_if_command&); | |
| 160 | |
| 161 tree_if_command& operator = (const tree_if_command&); | |
| 2982 | 162 }; |
| 163 | |
| 164 // Switch. | |
| 165 | |
| 166 class | |
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167 tree_switch_case : public tree |
| 2982 | 168 { |
| 169 public: | |
| 170 | |
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171 tree_switch_case (int l = -1, int c = -1) |
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172 : tree (l, c), label (0), list (0), lead_comm (0) { } |
| 2982 | 173 |
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174 tree_switch_case (tree_statement_list *sl, octave_comment_list *lc = 0, |
| 10313 | 175 int l = -1, int c = -1) |
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176 : tree (l, c), label (0), list (sl), lead_comm (lc) { } |
| 2982 | 177 |
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178 tree_switch_case (tree_expression *e, tree_statement_list *sl, |
| 10313 | 179 octave_comment_list *lc = 0, |
| 180 int l = -1, int c = -1) | |
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181 : tree (l, c), label (e), list (sl), lead_comm (lc) { } |
| 2982 | 182 |
| 183 ~tree_switch_case (void); | |
| 184 | |
| 3933 | 185 bool is_default_case (void) { return ! label; } |
| 2982 | 186 |
| 187 bool label_matches (const octave_value& val); | |
| 188 | |
| 189 tree_expression *case_label (void) { return label; } | |
| 190 | |
| 191 tree_statement_list *commands (void) { return list; } | |
| 192 | |
| 3665 | 193 octave_comment_list *leading_comment (void) { return lead_comm; } |
| 194 | |
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195 tree_switch_case *dup (symbol_table::scope_id scope, |
| 10313 | 196 symbol_table::context_id context) const; |
| 5861 | 197 |
| 2982 | 198 void accept (tree_walker& tw); |
| 199 | |
| 200 private: | |
| 201 | |
| 202 // The case label. | |
| 203 tree_expression *label; | |
| 204 | |
| 205 // The list of statements to evaluate if the label matches. | |
| 206 tree_statement_list *list; | |
| 2988 | 207 |
| 3665 | 208 // Comment preceding CASE or OTHERWISE token. |
| 209 octave_comment_list *lead_comm; | |
| 210 | |
| 2988 | 211 // No copying! |
| 212 | |
| 213 tree_switch_case (const tree_switch_case&); | |
| 214 | |
| 215 tree_switch_case& operator = (const tree_switch_case&); | |
| 2982 | 216 }; |
| 217 | |
| 218 class | |
| 4219 | 219 tree_switch_case_list : public octave_base_list<tree_switch_case *> |
| 2982 | 220 { |
| 221 public: | |
| 222 | |
| 4219 | 223 tree_switch_case_list (void) { } |
| 2982 | 224 |
| 4219 | 225 tree_switch_case_list (tree_switch_case *t) { append (t); } |
| 2982 | 226 |
| 227 ~tree_switch_case_list (void) | |
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228 { |
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229 while (! empty ()) |
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230 { |
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231 iterator p = begin (); |
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232 delete *p; |
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233 erase (p); |
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234 } |
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235 } |
| 2982 | 236 |
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237 tree_switch_case_list *dup (symbol_table::scope_id scope, |
| 10313 | 238 symbol_table::context_id context) const; |
| 5861 | 239 |
| 2982 | 240 void accept (tree_walker& tw); |
| 2988 | 241 |
| 242 private: | |
| 243 | |
| 244 // No copying! | |
| 245 | |
| 246 tree_switch_case_list (const tree_switch_case_list&); | |
| 247 | |
| 248 tree_switch_case_list& operator = (const tree_switch_case_list&); | |
| 2982 | 249 }; |
| 250 | |
| 251 class | |
| 252 tree_switch_command : public tree_command | |
| 253 { | |
| 254 public: | |
| 255 | |
| 256 tree_switch_command (int l = -1, int c = -1) | |
| 3665 | 257 : tree_command (l, c), expr (0), list (0), lead_comm (0), |
| 258 trail_comm (0) { } | |
| 2982 | 259 |
| 260 tree_switch_command (tree_expression *e, tree_switch_case_list *lst, | |
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261 octave_comment_list *lc, octave_comment_list *tc, |
| 10313 | 262 int l = -1, int c = -1) |
| 3665 | 263 : tree_command (l, c), expr (e), list (lst), lead_comm (lc), |
| 264 trail_comm (tc) { } | |
| 2982 | 265 |
| 266 ~tree_switch_command (void); | |
| 267 | |
| 268 tree_expression *switch_value (void) { return expr; } | |
| 269 | |
| 270 tree_switch_case_list *case_list (void) { return list; } | |
| 271 | |
| 3665 | 272 octave_comment_list *leading_comment (void) { return lead_comm; } |
| 273 | |
| 274 octave_comment_list *trailing_comment (void) { return trail_comm; } | |
| 275 | |
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276 tree_command *dup (symbol_table::scope_id scope, |
| 10313 | 277 symbol_table::context_id context) const; |
| 5861 | 278 |
| 2982 | 279 void accept (tree_walker& tw); |
| 280 | |
| 281 private: | |
| 282 | |
| 283 // Value on which to switch. | |
| 284 tree_expression *expr; | |
| 285 | |
| 286 // List of cases (case 1, case 2, ..., default) | |
| 287 tree_switch_case_list *list; | |
| 2988 | 288 |
| 3665 | 289 // Comment preceding SWITCH token. |
| 290 octave_comment_list *lead_comm; | |
| 291 | |
| 292 // Comment preceding ENDSWITCH token. | |
| 293 octave_comment_list *trail_comm; | |
| 294 | |
| 2988 | 295 // No copying! |
| 296 | |
| 297 tree_switch_command (const tree_switch_command&); | |
| 298 | |
| 299 tree_switch_command& operator = (const tree_switch_command&); | |
| 2982 | 300 }; |
| 301 | |
| 302 #endif |