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annotate test/try.tst @ 17249:923ce8b42db2

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improve try-catch-statement to save exception to a variable (bug #33217) * oct-parse.in.yy (except_command): Handle exception identifiers. * oct-parse.in.yy, parse.h (octave_base_parser::make_try_command): New arg, ID. * pt-except.cc, pt-except.h (tree_try_catch_command::expr_id): New data member. (tree_command::tree_command): Initialize it. (tree_command::~tree_command): Delete it. (tree_command::identifier): New function. * pt-check.cc (tree_checker::visit_try_catch_command): Check for valid expr_id. * pt-pr-code.cc (tree_print_code::visit_try_catch_command): Print expr_id. * pt-eval.cc (tree_evaluator::visit_try_catch_command): Assign message and identifier to variable. * try.tst: New test. * NEWS: Note change.
author Stefan Mahr <dac922@gmx.de>
date Tue, 13 Aug 2013 19:35:53 +0200
parents 333243133364
children e6c0ac8ce5b6
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14138
72c96de7a403 maint: update copyright notices for 2012
John W. Eaton <jwe@octave.org>
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1 ## Copyright (C) 2006-2012 John W. Eaton
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2 ##
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3 ## This file is part of Octave.
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4 ##
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5 ## Octave is free software; you can redistribute it and/or modify it
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6 ## under the terms of the GNU General Public License as published by
93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe]
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7 ## the Free Software Foundation; either version 3 of the License, or (at
93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe]
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8 ## your option) any later version.
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9 ##
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10 ## Octave is distributed in the hope that it will be useful, but
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11 ## WITHOUT ANY WARRANTY; without even the implied warranty of
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12 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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13 ## General Public License for more details.
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14 ##
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15 ## You should have received a copy of the GNU General Public License
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16 ## along with Octave; see the file COPYING. If not, see
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17 ## <http://www.gnu.org/licenses/>.
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18
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19 %!test
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20 %! try
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21 %! catch
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22 %! error ("Shoudn't get here");
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23 %! end_try_catch
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24
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25 %!test
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26 %! try
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27 %! clear a;
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28 %! a;
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29 %! catch
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30 %! end_try_catch
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31 %! a = 1;
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32 %! assert (a,1);
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33
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34 %!test
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35 %! clear x;
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36 %! try
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37 %! clear a;
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38 %! a;
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39 %! x = 1;
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40 %! catch
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41 %! end_try_catch
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42 %! a = 2;
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43 %! assert (!exist ('x'));
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44 %! assert (a,2);
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45
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46 %!test
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47 %! try
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48 %! clear a;
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49 %! a;
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50 %! catch
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51 %! x = 1;
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52 %! end_try_catch
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53 %! assert (exist ('x'));
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54
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55 %!test
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56 %! try
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57 %! clear a;
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58 %! a;
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59 %! error ("Shoudn't get here");
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60 %! catch
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61 %! assert (lasterr()(1:13), "'a' undefined");
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62 %! end_try_catch
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63 %! assert (lasterr()(1:13), "'a' undefined");
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64
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65 %!test
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66 %! try
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67 %! error ("user-defined error");
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68 %! catch
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69 %! assert (lasterr, "user-defined error");
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70 %! end_try_catch
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71
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72 %!function ms = mangle (s)
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73 %! ## Wrap angle brackets around S.
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74 %! ms = ["<" s ">"];
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75 %!endfunction
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76 %!test
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77 %! try
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78 %! clear a;
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79 %! a;
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80 %! error ("Shoudn't get here");
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81 %! catch
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82 %! assert (mangle (lasterr)(1:14), "<'a' undefined");
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83 %! end_try_catch
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84
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85 %!test
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86 %! try
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87 %! try
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88 %! clear a;
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89 %! a;
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90 %! error ("Shoudn't get here");
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91 %! catch
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92 %! assert (lasterr()(1:13), "'a' undefined");
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93 %! end_try_catch
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94 %! clear b;
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95 %! b;
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96 %! error ("Shoudn't get here");
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97 %! catch
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98 %! assert (lasterr()(1:13), "'b' undefined");
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99 %! end_try_catch
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100
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101 %!test
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102 %! try
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103 %! clear a;
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104 %! a;
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105 %! error ("Shoudn't get here");
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106 %! catch
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107 %! try
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108 %! assert (lasterr()(1:13), "'a' undefined");
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109 %! clear b;
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110 %! b;
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111 %! error ("Shoudn't get here");
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112 %! catch
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113 %! assert (lasterr()(1:13), "'b' undefined");
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114 %! end_try_catch
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115 %! end_try_catch
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116
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117 %!test
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118 %! try
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119 %! try
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120 %! clear a;
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121 %! a;
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122 %! error ("Shoudn't get here");
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123 %! catch
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124 %! error (["rethrow: " lasterr]);
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125 %! end_try_catch
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126 %! catch
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127 %! assert (lasterr()(1:22), "rethrow: 'a' undefined");
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128 %! end_try_catch
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129
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130 %!test
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131 %! clear myerr;
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132 %! try
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133 %! error ("user-defined error");
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134 %! catch myerr
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135 %! assert (myerr.message, "user-defined error");
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136 %! end_try_catch
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137
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138 %!test
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139 %! try
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140 %! clear a;
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141 %! error ("user-defined error");
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142 %! catch a=1;
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parents: 16994
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143 %! assert (lasterr, "user-defined error");
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parents: 16994
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144 %! assert (a, 1);
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parents: 16994
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145 %! end_try_catch
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parents: 16994
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146
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parents: 16994
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147 %!test
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parents: 16994
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148 %! clear myerr1
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parents: 16994
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149 %! clear myerr2
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parents: 16994
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150 %! try
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parents: 16994
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151 %! try
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parents: 16994
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152 %! clear a;
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parents: 16994
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153 %! a;
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parents: 16994
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154 %! catch myerr1
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parents: 16994
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155 %! error (myerr1);
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parents: 16994
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156 %! end_try_catch
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parents: 16994
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157 %! catch myerr2
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parents: 16994
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158 %! assert (myerr1.message, myerr2.message);
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parents: 16994
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159 %! assert (myerr1.identifier, myerr2.identifier);
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parents: 16994
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160 %! end_try_catch