Mercurial > octave-nkf
annotate src/pt-except.h @ 16088:b29b10fbb744 stable release-3-6-4
Version 3.6.4 released.
* configure.ac (AC_INIT): Version is now 3.6.4.
(OCTAVE_RELEASE_DATE): Now 2013-02-21.
| author | John W. Eaton <jwe@octave.org> |
|---|---|
| date | Thu, 21 Feb 2013 15:17:54 -0500 |
| parents | 72c96de7a403 |
| children | 955a9f63a35e |
| rev | line source |
|---|---|
| 2982 | 1 /* |
| 2 | |
|
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3 Copyright (C) 1996-2012 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 | |
| 23 #if !defined (octave_tree_except_h) | |
| 24 #define octave_tree_except_h 1 | |
| 25 | |
| 26 class tree_statement_list; | |
| 27 | |
| 28 class tree_walker; | |
| 29 | |
| 3665 | 30 #include "comment-list.h" |
| 2982 | 31 #include "pt-cmd.h" |
| 7336 | 32 #include "symtab.h" |
| 2982 | 33 |
| 34 // Simple exception handling. | |
| 35 | |
| 36 class | |
| 37 tree_try_catch_command : public tree_command | |
| 38 { | |
| 39 public: | |
| 40 | |
| 41 tree_try_catch_command (int l = -1, int c = -1) | |
| 3665 | 42 : tree_command (l, c), try_code (0), catch_code (0), lead_comm (0), |
| 43 mid_comm (0), trail_comm (0) { } | |
| 2982 | 44 |
| 45 tree_try_catch_command (tree_statement_list *tc, tree_statement_list *cc, | |
| 10313 | 46 octave_comment_list *cl = 0, |
| 47 octave_comment_list *cm = 0, | |
| 48 octave_comment_list *ct = 0, | |
| 49 int l = -1, int c = -1) | |
| 3665 | 50 : tree_command (l, c), try_code (tc), catch_code (cc), |
| 51 lead_comm (cl), mid_comm (cm), trail_comm (ct) { } | |
| 2982 | 52 |
| 53 ~tree_try_catch_command (void); | |
| 54 | |
| 55 tree_statement_list *body (void) { return try_code; } | |
| 56 | |
| 57 tree_statement_list *cleanup (void) { return catch_code; } | |
| 58 | |
| 3665 | 59 octave_comment_list *leading_comment (void) { return lead_comm; } |
| 60 | |
| 61 octave_comment_list *middle_comment (void) { return mid_comm; } | |
| 62 | |
| 63 octave_comment_list *trailing_comment (void) { return trail_comm; } | |
| 64 | |
|
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65 tree_command *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 first block of code to attempt to execute. | |
| 73 tree_statement_list *try_code; | |
| 74 | |
| 75 // The code to execute if an error occurs in the first block. | |
| 76 tree_statement_list *catch_code; | |
| 2988 | 77 |
| 3665 | 78 // Comment preceding TRY token. |
| 79 octave_comment_list *lead_comm; | |
| 80 | |
| 81 // Comment preceding CATCH token. | |
| 82 octave_comment_list *mid_comm; | |
| 83 | |
| 84 // Comment preceding END_TRY_CATCH token. | |
| 85 octave_comment_list *trail_comm; | |
| 86 | |
| 2988 | 87 // No copying! |
| 88 | |
| 89 tree_try_catch_command (const tree_try_catch_command&); | |
| 90 | |
| 91 tree_try_catch_command& operator = (const tree_try_catch_command&); | |
| 2982 | 92 }; |
| 93 | |
| 94 // Simple exception handling. | |
| 95 | |
| 96 class | |
| 97 tree_unwind_protect_command : public tree_command | |
| 98 { | |
| 99 public: | |
| 100 | |
| 101 tree_unwind_protect_command (int l = -1, int c = -1) | |
| 3665 | 102 : tree_command (l, c), unwind_protect_code (0), cleanup_code (0), |
| 103 lead_comm (0), mid_comm (0), trail_comm (0) { } | |
| 2982 | 104 |
| 105 tree_unwind_protect_command (tree_statement_list *tc, | |
| 10313 | 106 tree_statement_list *cc, |
| 107 octave_comment_list *cl = 0, | |
| 108 octave_comment_list *cm = 0, | |
| 109 octave_comment_list *ct = 0, | |
| 110 int l = -1, int c = -1) | |
| 3665 | 111 : tree_command (l, c), unwind_protect_code (tc), cleanup_code (cc), |
| 112 lead_comm (cl), mid_comm (cm), trail_comm (ct) { } | |
| 2982 | 113 |
| 114 ~tree_unwind_protect_command (void); | |
| 115 | |
| 116 tree_statement_list *body (void) { return unwind_protect_code; } | |
| 117 | |
| 118 tree_statement_list *cleanup (void) { return cleanup_code; } | |
| 119 | |
| 3665 | 120 octave_comment_list *leading_comment (void) { return lead_comm; } |
| 121 | |
| 122 octave_comment_list *middle_comment (void) { return mid_comm; } | |
| 123 | |
| 124 octave_comment_list *trailing_comment (void) { return trail_comm; } | |
| 125 | |
|
7767
71f068b22fcc
scope and context fixes for function handles
John W. Eaton <jwe@octave.org>
parents:
7336
diff
changeset
|
126 tree_command *dup (symbol_table::scope_id scope, |
| 10313 | 127 symbol_table::context_id context) const; |
| 5861 | 128 |
| 2982 | 129 void accept (tree_walker& tw); |
| 130 | |
| 131 private: | |
| 132 | |
| 133 // The first body of code to attempt to execute. | |
| 134 tree_statement_list *unwind_protect_code; | |
| 135 | |
| 136 // The body of code to execute no matter what happens in the first | |
| 137 // body of code. | |
| 138 tree_statement_list *cleanup_code; | |
| 2988 | 139 |
| 3665 | 140 // Comment preceding TRY token. |
| 141 octave_comment_list *lead_comm; | |
| 142 | |
| 143 // Comment preceding CATCH token. | |
| 144 octave_comment_list *mid_comm; | |
| 145 | |
| 146 // Comment preceding END_TRY_CATCH token. | |
| 147 octave_comment_list *trail_comm; | |
| 148 | |
| 2988 | 149 // No copying! |
| 150 | |
| 151 tree_unwind_protect_command (const tree_unwind_protect_command&); | |
| 152 | |
| 153 tree_unwind_protect_command& operator = (const tree_unwind_protect_command&); | |
| 2982 | 154 }; |
| 155 | |
| 156 #endif |