Mercurial > octave-nkf
annotate src/pt-except.h @ 7961:a5d1e27ee1f4 ss-3-1-51
3.1.51 snapshot
| author | John W. Eaton <jwe@octave.org> |
|---|---|
| date | Tue, 22 Jul 2008 11:40:48 -0400 |
| parents | 71f068b22fcc |
| children | 73c4516fae10 |
| 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_except_h) | |
| 25 #define octave_tree_except_h 1 | |
| 26 | |
| 27 class tree_statement_list; | |
| 28 | |
| 29 class tree_walker; | |
| 30 | |
| 3665 | 31 #include "comment-list.h" |
| 2982 | 32 #include "pt-cmd.h" |
| 7336 | 33 #include "symtab.h" |
| 2982 | 34 |
| 35 // Simple exception handling. | |
| 36 | |
| 37 class | |
| 38 tree_try_catch_command : public tree_command | |
| 39 { | |
| 40 public: | |
| 41 | |
| 42 tree_try_catch_command (int l = -1, int c = -1) | |
| 3665 | 43 : tree_command (l, c), try_code (0), catch_code (0), lead_comm (0), |
| 44 mid_comm (0), trail_comm (0) { } | |
| 2982 | 45 |
| 46 tree_try_catch_command (tree_statement_list *tc, tree_statement_list *cc, | |
| 3665 | 47 octave_comment_list *cl = 0, |
| 48 octave_comment_list *cm = 0, | |
| 49 octave_comment_list *ct = 0, | |
| 2982 | 50 int l = -1, int c = -1) |
| 3665 | 51 : tree_command (l, c), try_code (tc), catch_code (cc), |
| 52 lead_comm (cl), mid_comm (cm), trail_comm (ct) { } | |
| 2982 | 53 |
| 54 ~tree_try_catch_command (void); | |
| 55 | |
| 56 void eval (void); | |
| 57 | |
| 58 tree_statement_list *body (void) { return try_code; } | |
| 59 | |
| 60 tree_statement_list *cleanup (void) { return catch_code; } | |
| 61 | |
| 3665 | 62 octave_comment_list *leading_comment (void) { return lead_comm; } |
| 63 | |
| 64 octave_comment_list *middle_comment (void) { return mid_comm; } | |
| 65 | |
| 66 octave_comment_list *trailing_comment (void) { return trail_comm; } | |
| 67 | |
|
7767
71f068b22fcc
scope and context fixes for function handles
John W. Eaton <jwe@octave.org>
parents:
7336
diff
changeset
|
68 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
|
69 symbol_table::context_id context); |
| 5861 | 70 |
| 2982 | 71 void accept (tree_walker& tw); |
| 72 | |
| 73 private: | |
| 74 | |
| 75 // The first block of code to attempt to execute. | |
| 76 tree_statement_list *try_code; | |
| 77 | |
| 78 // The code to execute if an error occurs in the first block. | |
| 79 tree_statement_list *catch_code; | |
| 2988 | 80 |
| 3665 | 81 // Comment preceding TRY token. |
| 82 octave_comment_list *lead_comm; | |
| 83 | |
| 84 // Comment preceding CATCH token. | |
| 85 octave_comment_list *mid_comm; | |
| 86 | |
| 87 // Comment preceding END_TRY_CATCH token. | |
| 88 octave_comment_list *trail_comm; | |
| 89 | |
| 2988 | 90 // No copying! |
| 91 | |
| 92 tree_try_catch_command (const tree_try_catch_command&); | |
| 93 | |
| 94 tree_try_catch_command& operator = (const tree_try_catch_command&); | |
| 2982 | 95 }; |
| 96 | |
| 97 // Simple exception handling. | |
| 98 | |
| 99 class | |
| 100 tree_unwind_protect_command : public tree_command | |
| 101 { | |
| 102 public: | |
| 103 | |
| 104 tree_unwind_protect_command (int l = -1, int c = -1) | |
| 3665 | 105 : tree_command (l, c), unwind_protect_code (0), cleanup_code (0), |
| 106 lead_comm (0), mid_comm (0), trail_comm (0) { } | |
| 2982 | 107 |
| 108 tree_unwind_protect_command (tree_statement_list *tc, | |
| 109 tree_statement_list *cc, | |
| 3665 | 110 octave_comment_list *cl = 0, |
| 111 octave_comment_list *cm = 0, | |
| 112 octave_comment_list *ct = 0, | |
| 2982 | 113 int l = -1, int c = -1) |
| 3665 | 114 : tree_command (l, c), unwind_protect_code (tc), cleanup_code (cc), |
| 115 lead_comm (cl), mid_comm (cm), trail_comm (ct) { } | |
| 2982 | 116 |
| 117 ~tree_unwind_protect_command (void); | |
| 118 | |
| 119 void eval (void); | |
| 120 | |
| 121 tree_statement_list *body (void) { return unwind_protect_code; } | |
| 122 | |
| 123 tree_statement_list *cleanup (void) { return cleanup_code; } | |
| 124 | |
| 3665 | 125 octave_comment_list *leading_comment (void) { return lead_comm; } |
| 126 | |
| 127 octave_comment_list *middle_comment (void) { return mid_comm; } | |
| 128 | |
| 129 octave_comment_list *trailing_comment (void) { return trail_comm; } | |
| 130 | |
|
7767
71f068b22fcc
scope and context fixes for function handles
John W. Eaton <jwe@octave.org>
parents:
7336
diff
changeset
|
131 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
|
132 symbol_table::context_id context); |
| 5861 | 133 |
| 2982 | 134 void accept (tree_walker& tw); |
| 135 | |
| 136 private: | |
| 137 | |
| 138 // The first body of code to attempt to execute. | |
| 139 tree_statement_list *unwind_protect_code; | |
| 140 | |
| 141 // The body of code to execute no matter what happens in the first | |
| 142 // body of code. | |
| 143 tree_statement_list *cleanup_code; | |
| 2988 | 144 |
| 3665 | 145 // Comment preceding TRY token. |
| 146 octave_comment_list *lead_comm; | |
| 147 | |
| 148 // Comment preceding CATCH token. | |
| 149 octave_comment_list *mid_comm; | |
| 150 | |
| 151 // Comment preceding END_TRY_CATCH token. | |
| 152 octave_comment_list *trail_comm; | |
| 153 | |
| 2988 | 154 // No copying! |
| 155 | |
| 156 tree_unwind_protect_command (const tree_unwind_protect_command&); | |
| 157 | |
| 158 tree_unwind_protect_command& operator = (const tree_unwind_protect_command&); | |
| 2982 | 159 }; |
| 160 | |
| 161 #endif | |
| 162 | |
| 163 /* | |
| 164 ;;; Local Variables: *** | |
| 165 ;;; mode: C++ *** | |
| 166 ;;; End: *** | |
| 167 */ |