Mercurial > octave
annotate src/pt-stmt.cc @ 8669:33783e94fb16
line number fixes and other evaluator tweaks
| author | John W. Eaton <jwe@octave.org> |
|---|---|
| date | Wed, 04 Feb 2009 13:28:06 -0500 |
| parents | 73c4516fae10 |
| children | b9ce57a309a3 |
| rev | line source |
|---|---|
| 2982 | 1 /* |
| 2 | |
| 7017 | 3 Copyright (C) 1996, 1997, 1999, 2000, 2001, 2002, 2003, 2004, 2005, |
| 4 2006, 2007 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 #ifdef HAVE_CONFIG_H | |
| 25 #include <config.h> | |
| 26 #endif | |
| 27 | |
|
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28 #include <typeinfo> |
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29 |
| 4153 | 30 #include "quit.h" |
| 31 | |
| 2982 | 32 #include "defun.h" |
| 33 #include "error.h" | |
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34 #include "gripes.h" |
| 2982 | 35 #include "ov.h" |
| 36 #include "oct-lvalue.h" | |
| 37 #include "input.h" | |
| 38 #include "pager.h" | |
| 3770 | 39 #include "pt-bp.h" |
| 2982 | 40 #include "pt-cmd.h" |
| 41 #include "pt-id.h" | |
| 42 #include "pt-idx.h" | |
| 2985 | 43 #include "pt-jump.h" |
| 2982 | 44 #include "pt-pr-code.h" |
| 45 #include "pt-stmt.h" | |
| 46 #include "pt-walk.h" | |
| 3707 | 47 #include "unwind-prot.h" |
| 2982 | 48 #include "utils.h" |
| 49 #include "variables.h" | |
| 50 | |
| 51 // A list of commands to be executed. | |
| 52 | |
| 53 tree_statement::~tree_statement (void) | |
| 54 { | |
| 55 delete cmd; | |
| 56 delete expr; | |
| 3665 | 57 delete comm; |
| 2982 | 58 } |
| 59 | |
|
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60 void |
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61 tree_statement::set_print_flag (bool print_flag) |
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62 { |
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63 if (expr) |
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64 expr->set_print_flag (print_flag); |
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65 } |
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66 |
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67 bool |
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68 tree_statement::print_result (void) |
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69 { |
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70 return expr && expr->print_result (); |
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71 } |
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72 |
| 2982 | 73 int |
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74 tree_statement::line (void) const |
| 2982 | 75 { |
| 76 return cmd ? cmd->line () : (expr ? expr->line () : -1); | |
| 77 } | |
| 78 | |
| 79 int | |
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80 tree_statement::column (void) const |
| 2982 | 81 { |
| 82 return cmd ? cmd->column () : (expr ? expr->column () : -1); | |
| 83 } | |
| 84 | |
| 85 void | |
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86 tree_statement::echo_code (void) |
| 2982 | 87 { |
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88 tree_print_code tpc (octave_stdout, VPS4); |
| 2982 | 89 |
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90 accept (tpc); |
| 2982 | 91 } |
| 92 | |
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93 bool |
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94 tree_statement::is_end_of_fcn_or_script (void) const |
| 2982 | 95 { |
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96 bool retval = false; |
| 2982 | 97 |
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98 if (cmd) |
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99 { |
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100 tree_no_op_command *no_op_cmd |
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101 = dynamic_cast<tree_no_op_command *> (cmd); |
| 2982 | 102 |
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103 if (no_op_cmd) |
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104 { |
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105 std::string type = no_op_cmd->original_command (); |
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106 |
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107 retval = (type == "endfunction" || type == "endscript"); |
| 2982 | 108 } |
| 109 } | |
| 110 | |
| 111 return retval; | |
| 112 } | |
| 113 | |
| 5861 | 114 tree_statement * |
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115 tree_statement::dup (symbol_table::scope_id scope, |
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116 symbol_table::context_id context) |
| 5861 | 117 { |
| 118 tree_statement *new_stmt = new tree_statement (); | |
| 119 | |
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120 new_stmt->cmd = cmd ? cmd->dup (scope, context) : 0; |
| 5861 | 121 |
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122 new_stmt->expr = expr ? expr->dup (scope, context) : 0; |
| 5861 | 123 |
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124 new_stmt->bp = bp; |
| 5861 | 125 |
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126 new_stmt->comm = comm ? comm->dup () : 0; |
| 5861 | 127 |
| 128 return new_stmt; | |
| 129 } | |
| 130 | |
| 2982 | 131 void |
| 132 tree_statement::accept (tree_walker& tw) | |
| 133 { | |
| 134 tw.visit_statement (*this); | |
| 135 } | |
| 136 | |
| 3770 | 137 int |
| 138 tree_statement_list::set_breakpoint (int line) | |
| 139 { | |
| 140 tree_breakpoint tbp (line, tree_breakpoint::set); | |
| 141 accept (tbp); | |
| 142 | |
| 143 return tbp.get_line (); | |
| 144 } | |
| 145 | |
| 146 void | |
| 147 tree_statement_list::delete_breakpoint (int line) | |
| 148 { | |
| 3895 | 149 if (line < 0) |
| 150 { | |
| 4212 | 151 octave_value_list bp_lst = list_breakpoints (); |
| 3895 | 152 |
| 4212 | 153 int len = bp_lst.length (); |
| 3895 | 154 |
| 4587 | 155 for (int i = 0; i < len; i++) |
| 3895 | 156 { |
| 4587 | 157 tree_breakpoint tbp (i, tree_breakpoint::clear); |
| 3895 | 158 accept (tbp); |
| 159 } | |
| 160 } | |
| 161 else | |
| 162 { | |
| 163 tree_breakpoint tbp (line, tree_breakpoint::clear); | |
| 164 accept (tbp); | |
| 165 } | |
| 3770 | 166 } |
| 167 | |
| 168 octave_value_list | |
| 169 tree_statement_list::list_breakpoints (void) | |
| 170 { | |
| 171 tree_breakpoint tbp (0, tree_breakpoint::list); | |
| 172 accept (tbp); | |
| 173 | |
| 174 return tbp.get_list (); | |
| 175 } | |
| 176 | |
| 5861 | 177 tree_statement_list * |
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178 tree_statement_list::dup (symbol_table::scope_id scope, |
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179 symbol_table::context_id context) |
| 5861 | 180 { |
| 181 tree_statement_list *new_list = new tree_statement_list (); | |
| 182 | |
| 183 new_list->function_body = function_body; | |
| 184 | |
| 185 for (iterator p = begin (); p != end (); p++) | |
| 186 { | |
| 187 tree_statement *elt = *p; | |
| 188 | |
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189 new_list->append (elt ? elt->dup (scope, context) : 0); |
| 5861 | 190 } |
| 191 | |
| 192 return new_list; | |
| 193 } | |
| 194 | |
| 2982 | 195 void |
| 196 tree_statement_list::accept (tree_walker& tw) | |
| 197 { | |
| 198 tw.visit_statement_list (*this); | |
| 199 } | |
| 200 | |
| 201 /* | |
| 202 ;;; Local Variables: *** | |
| 203 ;;; mode: C++ *** | |
| 204 ;;; End: *** | |
| 205 */ |