Mercurial > hg > octave-nkf
annotate libinterp/parse-tree/pt-except.h @ 19789:37d37297acf8
maint: Periodic merge of gui-release to default.
| author | John W. Eaton <jwe@octave.org> |
|---|---|
| date | Tue, 20 Jan 2015 09:55:41 -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_except_h) |
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maint: Use common #define syntax "octave_filename_h" in h_files.
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24 #define octave_pt_except_h 1 |
| 2982 | 25 |
| 26 class tree_statement_list; | |
| 27 | |
| 28 class tree_walker; | |
| 29 | |
| 3665 | 30 #include "comment-list.h" |
| 2982 | 31 #include "pt-cmd.h" |
|
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32 #include "pt-id.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) | |
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43 : tree_command (l, c), try_code (0), catch_code (0), expr_id (0), |
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44 lead_comm (0), mid_comm (0), trail_comm (0) { } |
| 2982 | 45 |
| 46 tree_try_catch_command (tree_statement_list *tc, tree_statement_list *cc, | |
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47 tree_identifier *id, |
| 10313 | 48 octave_comment_list *cl = 0, |
| 49 octave_comment_list *cm = 0, | |
| 50 octave_comment_list *ct = 0, | |
| 51 int l = -1, int c = -1) | |
|
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parents:
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52 : tree_command (l, c), try_code (tc), catch_code (cc), expr_id (id), |
| 3665 | 53 lead_comm (cl), mid_comm (cm), trail_comm (ct) { } |
| 2982 | 54 |
| 55 ~tree_try_catch_command (void); | |
| 56 | |
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57 tree_identifier *identifier (void) { return expr_id; } |
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58 |
| 2982 | 59 tree_statement_list *body (void) { return try_code; } |
| 60 | |
| 61 tree_statement_list *cleanup (void) { return catch_code; } | |
| 62 | |
| 3665 | 63 octave_comment_list *leading_comment (void) { return lead_comm; } |
| 64 | |
| 65 octave_comment_list *middle_comment (void) { return mid_comm; } | |
| 66 | |
| 67 octave_comment_list *trailing_comment (void) { return trail_comm; } | |
| 68 | |
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69 tree_command *dup (symbol_table::scope_id scope, |
| 10313 | 70 symbol_table::context_id context) const; |
| 5861 | 71 |
| 2982 | 72 void accept (tree_walker& tw); |
| 73 | |
| 74 private: | |
| 75 | |
| 76 // The first block of code to attempt to execute. | |
| 77 tree_statement_list *try_code; | |
| 78 | |
| 79 // The code to execute if an error occurs in the first block. | |
| 80 tree_statement_list *catch_code; | |
| 2988 | 81 |
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82 // Identifier to modify. |
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83 tree_identifier *expr_id; |
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84 |
| 3665 | 85 // Comment preceding TRY token. |
| 86 octave_comment_list *lead_comm; | |
| 87 | |
| 88 // Comment preceding CATCH token. | |
| 89 octave_comment_list *mid_comm; | |
| 90 | |
| 91 // Comment preceding END_TRY_CATCH token. | |
| 92 octave_comment_list *trail_comm; | |
| 93 | |
| 2988 | 94 // No copying! |
| 95 | |
| 96 tree_try_catch_command (const tree_try_catch_command&); | |
| 97 | |
| 98 tree_try_catch_command& operator = (const tree_try_catch_command&); | |
| 2982 | 99 }; |
| 100 | |
| 101 // Simple exception handling. | |
| 102 | |
| 103 class | |
| 104 tree_unwind_protect_command : public tree_command | |
| 105 { | |
| 106 public: | |
| 107 | |
| 108 tree_unwind_protect_command (int l = -1, int c = -1) | |
| 3665 | 109 : tree_command (l, c), unwind_protect_code (0), cleanup_code (0), |
| 110 lead_comm (0), mid_comm (0), trail_comm (0) { } | |
| 2982 | 111 |
| 112 tree_unwind_protect_command (tree_statement_list *tc, | |
| 10313 | 113 tree_statement_list *cc, |
| 114 octave_comment_list *cl = 0, | |
| 115 octave_comment_list *cm = 0, | |
| 116 octave_comment_list *ct = 0, | |
| 117 int l = -1, int c = -1) | |
| 3665 | 118 : tree_command (l, c), unwind_protect_code (tc), cleanup_code (cc), |
| 119 lead_comm (cl), mid_comm (cm), trail_comm (ct) { } | |
| 2982 | 120 |
| 121 ~tree_unwind_protect_command (void); | |
| 122 | |
| 123 tree_statement_list *body (void) { return unwind_protect_code; } | |
| 124 | |
| 125 tree_statement_list *cleanup (void) { return cleanup_code; } | |
| 126 | |
| 3665 | 127 octave_comment_list *leading_comment (void) { return lead_comm; } |
| 128 | |
| 129 octave_comment_list *middle_comment (void) { return mid_comm; } | |
| 130 | |
| 131 octave_comment_list *trailing_comment (void) { return trail_comm; } | |
| 132 | |
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7767
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scope and context fixes for function handles
John W. Eaton <jwe@octave.org>
parents:
7336
diff
changeset
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133 tree_command *dup (symbol_table::scope_id scope, |
| 10313 | 134 symbol_table::context_id context) const; |
| 5861 | 135 |
| 2982 | 136 void accept (tree_walker& tw); |
| 137 | |
| 138 private: | |
| 139 | |
| 140 // The first body of code to attempt to execute. | |
| 141 tree_statement_list *unwind_protect_code; | |
| 142 | |
| 143 // The body of code to execute no matter what happens in the first | |
| 144 // body of code. | |
| 145 tree_statement_list *cleanup_code; | |
| 2988 | 146 |
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John W. Eaton <jwe@octave.org>
parents:
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147 // Comment preceding UNWIND_PROTECT token. |
| 3665 | 148 octave_comment_list *lead_comm; |
| 149 | |
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pt-except.h (class tree_unwind_protect): Correct comments.
John W. Eaton <jwe@octave.org>
parents:
14138
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150 // Comment preceding UNWIND_PROTECT_CLEANUP token. |
| 3665 | 151 octave_comment_list *mid_comm; |
| 152 | |
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14745
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pt-except.h (class tree_unwind_protect): Correct comments.
John W. Eaton <jwe@octave.org>
parents:
14138
diff
changeset
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153 // Comment preceding END_UNWIND_PROTECT token. |
| 3665 | 154 octave_comment_list *trail_comm; |
| 155 | |
| 2988 | 156 // No copying! |
| 157 | |
| 158 tree_unwind_protect_command (const tree_unwind_protect_command&); | |
| 159 | |
| 160 tree_unwind_protect_command& operator = (const tree_unwind_protect_command&); | |
| 2982 | 161 }; |
| 162 | |
| 163 #endif |