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###################################################### |
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# Exceptions.pm - Exception classes for Bio::NEXUS. |
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###################################################### |
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# original version thanks to Rutger |
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# |
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# $Id: Exceptions.pm,v 1.5 2012/02/07 21:49:27 astoltzfus Exp $ |
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# |
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package Bio::NEXUS::Util::StackTrace; |
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180
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use strict; |
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84
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28586
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sub new { |
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my $class = shift; |
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my $self = []; |
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my $i = 0; |
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my $j = 0; |
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package DB; # to get @_ stack from previous frames, see perldoc -f caller |
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while( my @frame = caller($i) ) { |
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my $package = $frame[0]; |
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108
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190
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if ( not Bio::NEXUS::Util::StackTrace::_skip_me( $package ) ) { |
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77
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my @args = @DB::args; |
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77
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328
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$self->[$j++] = [ @frame, @args ]; |
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} |
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108
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$i++; |
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} |
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package Bio::NEXUS::Util::StackTrace; |
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shift @$self; # to remove "throw" frame |
27
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562
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return bless $self, $class; |
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} |
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sub _skip_me { |
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108
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108
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my $class = shift; |
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108
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128
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my $skip = 0; |
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108
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100
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533
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if ( UNIVERSAL::isa( $class, 'Bio::NEXUS::Util::Exceptions') ) { |
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31
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$skip++; |
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} |
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108
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50
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526
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if ( UNIVERSAL::isa( $class, 'Bio::NEXUS::Util::ExceptionFactory' ) ) { |
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0
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0
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$skip++; |
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} |
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108
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282
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return $skip; |
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} |
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# fields in frame: |
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# [ |
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# 0 'main', |
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# +1 '/Users/rvosa/Desktop/exceptions.pl', |
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# +2 102, |
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# +3 'Object::this_dies', |
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# 4 1, |
49
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# 5 undef, |
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# 6 undef, |
51
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# 7 undef, |
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# 8 2, |
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# 9 'UUUUUUUUUUUU', |
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# +10 bless( {}, 'Object' ), |
55
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# +11 'very', |
56
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# +12 'violently' |
57
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# ], |
58
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59
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sub as_string { |
60
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14
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14
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24
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my $self = shift; |
61
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14
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19
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my $string = ""; |
62
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14
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52
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for my $frame ( @$self ) { |
63
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66
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88
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my $method = $frame->[3]; |
64
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66
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69
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my @args; |
65
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66
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76
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for my $i ( 10 .. $#{ $frame } ) { |
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66
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134
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66
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260
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370
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push @args, $frame->[$i]; |
67
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} |
68
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66
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112
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my $file = $frame->[1]; |
69
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66
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75
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my $line = $frame->[2]; |
70
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34
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34
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236
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no warnings 'uninitialized'; |
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34
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61
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34
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17472
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71
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66
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123
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$string .= $method . "(" . join(', ', map { "'$_'" } @args ) . ") called at $file line $line\n"; |
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260
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788
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72
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} |
73
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14
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86
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return $string; |
74
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} |
75
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76
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package Bio::NEXUS::Util::Exceptions; |
77
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BEGIN { |
78
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34
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34
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187
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require Exporter; |
79
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34
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34
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234
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use vars qw($AUTOLOAD @EXPORT_OK @ISA); |
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34
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75
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34
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9954
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80
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34
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624
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@ISA=qw(Exporter); |
81
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34
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716
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@EXPORT_OK=qw(throw); |
82
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} |
83
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34
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34
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170
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use strict; |
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34
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73
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34
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2524
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84
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34
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34
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24239
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use overload 'bool' => sub { 1 }, 'fallback' => 1, '""' => \&as_string; |
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34
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0
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15257
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34
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728
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0
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0
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85
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86
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sub new { |
87
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13
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13
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1
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34
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my $class = shift; |
88
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13
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51
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my %args = @_; |
89
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13
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85
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my $self = { |
90
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'error' => $args{'error'}, |
91
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'description' => $args{'description'}, |
92
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'trace' => Bio::NEXUS::Util::StackTrace->new, |
93
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'time' => CORE::time(), |
94
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'pid' => $$, |
95
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'uid' => $<, |
96
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'euid' => $>, |
97
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'gid' => $(, |
98
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'egid' => $), |
99
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}; |
100
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13
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63
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return bless $self, $class; |
101
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} |
102
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103
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sub as_string { |
104
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14
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14
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1
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3812
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my $self = shift; |
105
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14
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123
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my $error = $self->error; |
106
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14
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495
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my $description = $self->description; |
107
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14
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34
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my $class = ref $self; |
108
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14
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115
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my $trace = join "\n", map { "STACK: $_" } split '\n', $self->trace->as_string; |
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69
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174
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109
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14
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1358
|
return <<"ERROR_HERE_DOC"; |
110
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-------------------------- EXCEPTION ---------------------------- |
111
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Message: $error |
112
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113
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An exception of type $class |
114
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was thrown. |
115
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116
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$description |
117
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118
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Refer to the Bio::NEXUS::Util::Exceptions documentation for more |
119
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information. |
120
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------------------------- STACK TRACE --------------------------- |
121
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$trace |
122
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----------------------------------------------------------------- |
123
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ERROR_HERE_DOC |
124
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} |
125
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126
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sub throw ($$) { |
127
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# called as static method |
128
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13
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100
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13
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1
|
65
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if ( scalar @_ == 3 ) { |
|
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50
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129
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8
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14
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my $class = shift; |
130
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8
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45
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my $self = $class->new(@_); |
131
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8
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101
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die $self; |
132
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} |
133
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# called as function, e.g. throw BadArgs => 'msg'; |
134
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elsif ( scalar @_ == 2 ) { |
135
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5
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10
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my $type = shift; |
136
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5
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11
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my $class = __PACKAGE__ . '::' . $type; |
137
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5
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16
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my $self; |
138
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5
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8
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eval { |
139
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5
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46
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$self = $class->new( 'error' => shift ); |
140
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}; |
141
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5
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50
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16
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if ( $@ ) { |
142
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0
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0
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die Bio::NEXUS::Util::Exceptions::API->new( 'error' => "Can't throw errors of type $type: $@" ); |
143
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} |
144
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else { |
145
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5
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38
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die $self; |
146
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} |
147
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} |
148
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} |
149
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150
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sub rethrow { |
151
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0
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|
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0
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1
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0
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my $self = shift; |
152
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0
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|
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0
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die $self; |
153
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} |
154
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155
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sub caught { |
156
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0
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|
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0
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1
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0
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my $class = shift; |
157
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0
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0
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|
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0
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if ( @_ ) { |
158
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0
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0
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$class = shift; |
159
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} |
160
|
0
|
0
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|
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0
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if ( $@ ) { |
161
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0
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0
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|
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0
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if ( UNIVERSAL::isa( $@, $class ) ) { |
162
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0
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|
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0
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return $@; |
163
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} |
164
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else { |
165
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0
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0
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die $@; |
166
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} |
167
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} |
168
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} |
169
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170
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sub AUTOLOAD { |
171
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28
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28
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39
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my $self = shift; |
172
|
28
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|
1180
|
my $field = $AUTOLOAD; |
173
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28
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|
|
107
|
$field =~ s/.*://; |
174
|
28
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|
95
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return $self->{$field}; |
175
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} |
176
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177
|
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|
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sub _make_exceptions { |
178
|
34
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34
|
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468
|
my $class = shift; |
179
|
34
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|
75
|
my $root = shift; |
180
|
34
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|
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|
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595
|
my %exceptions = @_; |
181
|
34
|
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|
|
224
|
for my $exception ( keys %exceptions ) { |
182
|
544
|
|
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|
|
1164
|
my $isa = $exceptions{ $exception }->{'isa'}; |
183
|
544
|
100
|
|
|
|
1486
|
my @isa = ref $isa ? @$isa : ( $isa ); |
184
|
544
|
|
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|
|
847
|
my $description = $exceptions{ $exception }->{'description'}; |
185
|
544
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|
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|
|
1664
|
my $class = <<"EXCEPTION_CLASS"; |
186
|
|
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|
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|
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package ${exception}; |
187
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|
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|
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|
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use vars '\@ISA'; |
188
|
|
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|
|
\@ISA=qw(@isa); |
189
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|
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|
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my \$desc; |
190
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|
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|
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|
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sub description { |
191
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|
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|
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my \$self = shift; |
192
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|
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|
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if ( \@_ ) { |
193
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|
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|
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\$desc = shift; |
194
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|
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|
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} |
195
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|
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|
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|
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return \$desc; |
196
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|
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} |
197
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1; |
198
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|
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|
|
EXCEPTION_CLASS |
199
|
34
|
100
|
|
34
|
|
599
|
eval $class; |
|
34
|
50
|
|
34
|
|
134
|
|
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34
|
50
|
|
34
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|
3410
|
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34
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50
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34
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194
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34
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50
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34
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64
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34
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50
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34
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4468
|
|
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34
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50
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34
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202
|
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34
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100
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34
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62
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34
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50
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34
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2976
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|
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34
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50
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34
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|
256
|
|
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34
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100
|
|
34
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64
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34
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50
|
|
34
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|
3047
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|
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34
|
100
|
|
34
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243
|
|
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34
|
50
|
|
34
|
|
56
|
|
|
34
|
50
|
|
34
|
|
2854
|
|
|
34
|
100
|
|
34
|
|
187
|
|
|
34
|
|
|
36
|
|
66
|
|
|
34
|
|
|
34
|
|
3078
|
|
|
34
|
|
|
34
|
|
179
|
|
|
34
|
|
|
34
|
|
78
|
|
|
34
|
|
|
34
|
|
2969
|
|
|
34
|
|
|
34
|
|
181
|
|
|
34
|
|
|
34
|
|
62
|
|
|
34
|
|
|
35
|
|
3977
|
|
|
34
|
|
|
34
|
|
175
|
|
|
34
|
|
|
34
|
|
81
|
|
|
34
|
|
|
42
|
|
3045
|
|
|
34
|
|
|
34
|
|
181
|
|
|
34
|
|
|
36
|
|
64
|
|
|
34
|
|
|
34
|
|
3960
|
|
|
34
|
|
|
34
|
|
181
|
|
|
34
|
|
|
35
|
|
95
|
|
|
34
|
|
|
|
|
8171
|
|
|
34
|
|
|
|
|
201
|
|
|
34
|
|
|
|
|
67
|
|
|
34
|
|
|
|
|
3485
|
|
|
34
|
|
|
|
|
207
|
|
|
34
|
|
|
|
|
72
|
|
|
34
|
|
|
|
|
3153
|
|
|
34
|
|
|
|
|
196
|
|
|
34
|
|
|
|
|
63
|
|
|
34
|
|
|
|
|
3329
|
|
|
34
|
|
|
|
|
224
|
|
|
34
|
|
|
|
|
64
|
|
|
34
|
|
|
|
|
3456
|
|
|
34
|
|
|
|
|
196
|
|
|
34
|
|
|
|
|
1904
|
|
|
34
|
|
|
|
|
7451
|
|
|
544
|
|
|
|
|
48776
|
|
|
36
|
|
|
|
|
93
|
|
|
36
|
|
|
|
|
314
|
|
|
34
|
|
|
|
|
72
|
|
|
36
|
|
|
|
|
136
|
|
|
34
|
|
|
|
|
93
|
|
|
34
|
|
|
|
|
150
|
|
|
34
|
|
|
|
|
69
|
|
|
34
|
|
|
|
|
138
|
|
|
34
|
|
|
|
|
79
|
|
|
34
|
|
|
|
|
151
|
|
|
34
|
|
|
|
|
66
|
|
|
34
|
|
|
|
|
133
|
|
|
34
|
|
|
|
|
100
|
|
|
34
|
|
|
|
|
163
|
|
|
34
|
|
|
|
|
77
|
|
|
34
|
|
|
|
|
139
|
|
|
34
|
|
|
|
|
177
|
|
|
34
|
|
|
|
|
151
|
|
|
34
|
|
|
|
|
72
|
|
|
34
|
|
|
|
|
132
|
|
|
34
|
|
|
|
|
84
|
|
|
34
|
|
|
|
|
142
|
|
|
34
|
|
|
|
|
67
|
|
|
34
|
|
|
|
|
125
|
|
|
34
|
|
|
|
|
91
|
|
|
34
|
|
|
|
|
141
|
|
|
34
|
|
|
|
|
67
|
|
|
34
|
|
|
|
|
308
|
|
|
35
|
|
|
|
|
87
|
|
|
35
|
|
|
|
|
146
|
|
|
34
|
|
|
|
|
68
|
|
|
35
|
|
|
|
|
137
|
|
|
34
|
|
|
|
|
85
|
|
|
34
|
|
|
|
|
153
|
|
|
34
|
|
|
|
|
65
|
|
|
34
|
|
|
|
|
133
|
|
|
34
|
|
|
|
|
90
|
|
|
34
|
|
|
|
|
146
|
|
|
34
|
|
|
|
|
68
|
|
|
34
|
|
|
|
|
139
|
|
|
42
|
|
|
|
|
102
|
|
|
42
|
|
|
|
|
207
|
|
|
34
|
|
|
|
|
70
|
|
|
42
|
|
|
|
|
150
|
|
|
34
|
|
|
|
|
89
|
|
|
34
|
|
|
|
|
155
|
|
|
34
|
|
|
|
|
67
|
|
|
34
|
|
|
|
|
132
|
|
|
36
|
|
|
|
|
87
|
|
|
36
|
|
|
|
|
160
|
|
|
34
|
|
|
|
|
71
|
|
|
36
|
|
|
|
|
146
|
|
|
34
|
|
|
|
|
82
|
|
|
34
|
|
|
|
|
146
|
|
|
34
|
|
|
|
|
71
|
|
|
34
|
|
|
|
|
132
|
|
|
34
|
|
|
|
|
91
|
|
|
34
|
|
|
|
|
150
|
|
|
34
|
|
|
|
|
77
|
|
|
34
|
|
|
|
|
189
|
|
|
35
|
|
|
|
|
101
|
|
|
35
|
|
|
|
|
152
|
|
|
34
|
|
|
|
|
76
|
|
|
35
|
|
|
|
|
138
|
|
200
|
544
|
|
|
|
|
19564
|
$exception->description( $description ); |
201
|
|
|
|
|
|
|
} |
202
|
|
|
|
|
|
|
|
203
|
|
|
|
|
|
|
} |
204
|
|
|
|
|
|
|
|
205
|
|
|
|
|
|
|
__PACKAGE__->_make_exceptions( |
206
|
|
|
|
|
|
|
# root classes |
207
|
|
|
|
|
|
|
'Bio::NEXUS::Util::Exceptions', |
208
|
|
|
|
|
|
|
'Bio::NEXUS::Util::Exceptions::Generic' => { |
209
|
|
|
|
|
|
|
'isa' => 'Bio::NEXUS::Util::Exceptions', |
210
|
|
|
|
|
|
|
'description' => "No further details about this type of error are available." |
211
|
|
|
|
|
|
|
}, |
212
|
|
|
|
|
|
|
|
213
|
|
|
|
|
|
|
# exceptions on method calls |
214
|
|
|
|
|
|
|
'Bio::NEXUS::Util::Exceptions::API' => { |
215
|
|
|
|
|
|
|
'isa' => 'Bio::NEXUS::Util::Exceptions::Generic', |
216
|
|
|
|
|
|
|
'description' => "No more details about this type of error are available." |
217
|
|
|
|
|
|
|
}, |
218
|
|
|
|
|
|
|
'Bio::NEXUS::Util::Exceptions::UnknownMethod' => { |
219
|
|
|
|
|
|
|
'isa' => 'Bio::NEXUS::Util::Exceptions::API', |
220
|
|
|
|
|
|
|
'description' => "This kind of error happens when a non-existent method is called.", |
221
|
|
|
|
|
|
|
}, |
222
|
|
|
|
|
|
|
'Bio::NEXUS::Util::Exceptions::NotImplemented' => { |
223
|
|
|
|
|
|
|
'isa' => 'Bio::NEXUS::Util::Exceptions::API', |
224
|
|
|
|
|
|
|
'description' => "This kind of error happens when a non-implemented\n(interface) method is called.", |
225
|
|
|
|
|
|
|
}, |
226
|
|
|
|
|
|
|
'Bio::NEXUS::Util::Exceptions::Deprecated' => { |
227
|
|
|
|
|
|
|
'isa' => 'Bio::NEXUS::Util::Exceptions::API', |
228
|
|
|
|
|
|
|
'description' => "This kind of error happens when a deprecated method is called.", |
229
|
|
|
|
|
|
|
}, |
230
|
|
|
|
|
|
|
|
231
|
|
|
|
|
|
|
# exceptions on arguments |
232
|
|
|
|
|
|
|
'Bio::NEXUS::Util::Exceptions::BadArgs' => { |
233
|
|
|
|
|
|
|
'isa' => 'Bio::NEXUS::Util::Exceptions::Generic', |
234
|
|
|
|
|
|
|
'description' => "This kind of error happens when bad or incomplete arguments\nare provided.", |
235
|
|
|
|
|
|
|
}, |
236
|
|
|
|
|
|
|
'Bio::NEXUS::Util::Exceptions::BadString' => { |
237
|
|
|
|
|
|
|
'isa' => 'Bio::NEXUS::Util::Exceptions::BadArgs', |
238
|
|
|
|
|
|
|
'description' => "This kind of error happens when an unsafe string argument is\nprovided.", |
239
|
|
|
|
|
|
|
}, |
240
|
|
|
|
|
|
|
'Bio::NEXUS::Util::Exceptions::OddHash' => { |
241
|
|
|
|
|
|
|
'isa' => 'Bio::NEXUS::Util::Exceptions::BadArgs', |
242
|
|
|
|
|
|
|
'description' => "This kind of error happens when an uneven number\nof arguments (so no key/value pairs) was provided.", |
243
|
|
|
|
|
|
|
}, |
244
|
|
|
|
|
|
|
'Bio::NEXUS::Util::Exceptions::ObjectMismatch' => { |
245
|
|
|
|
|
|
|
'isa' => 'Bio::NEXUS::Util::Exceptions::BadArgs', |
246
|
|
|
|
|
|
|
'description' => "This kind of error happens when an invalid object\nargument is provided.", |
247
|
|
|
|
|
|
|
}, |
248
|
|
|
|
|
|
|
'Bio::NEXUS::Util::Exceptions::InvalidData' => { |
249
|
|
|
|
|
|
|
'isa' => [ |
250
|
|
|
|
|
|
|
'Bio::NEXUS::Util::Exceptions::BadString', |
251
|
|
|
|
|
|
|
'Bio::NEXUS::Util::Exceptions::BadFormat', |
252
|
|
|
|
|
|
|
], |
253
|
|
|
|
|
|
|
'description' => "This kind of error happens when invalid character data is\nprovided." |
254
|
|
|
|
|
|
|
}, |
255
|
|
|
|
|
|
|
'Bio::NEXUS::Util::Exceptions::OutOfBounds' => { |
256
|
|
|
|
|
|
|
'isa' => 'Bio::NEXUS::Util::Exceptions::BadArgs', |
257
|
|
|
|
|
|
|
'description' => "This kind of error happens when an index is outside of its range.", |
258
|
|
|
|
|
|
|
}, |
259
|
|
|
|
|
|
|
'Bio::NEXUS::Util::Exceptions::BadNumber' => { |
260
|
|
|
|
|
|
|
'isa' => 'Bio::NEXUS::Util::Exceptions::Generic', |
261
|
|
|
|
|
|
|
'description' => "This kind of error happens when an invalid numerical argument\nis provided.", |
262
|
|
|
|
|
|
|
}, |
263
|
|
|
|
|
|
|
|
264
|
|
|
|
|
|
|
# system exceptions |
265
|
|
|
|
|
|
|
'Bio::NEXUS::Util::Exceptions::System' => { |
266
|
|
|
|
|
|
|
'isa' => 'Bio::NEXUS::Util::Exceptions::Generic', |
267
|
|
|
|
|
|
|
'description' => "This kind of error happens when there is a system misconfiguration.", |
268
|
|
|
|
|
|
|
}, |
269
|
|
|
|
|
|
|
'Bio::NEXUS::Util::Exceptions::FileError' => { |
270
|
|
|
|
|
|
|
'isa' => 'Bio::NEXUS::Util::Exceptions::System', |
271
|
|
|
|
|
|
|
'description' => "This kind of error happens when a file can not be accessed.", |
272
|
|
|
|
|
|
|
}, |
273
|
|
|
|
|
|
|
'Bio::NEXUS::Util::Exceptions::ExtensionError' => { |
274
|
|
|
|
|
|
|
'isa' => [ |
275
|
|
|
|
|
|
|
'Bio::NEXUS::Util::Exceptions::System', |
276
|
|
|
|
|
|
|
'Bio::NEXUS::Util::Exceptions::BadFormat', |
277
|
|
|
|
|
|
|
], |
278
|
|
|
|
|
|
|
'description' => "This kind of error happens when an extension module can not be\nloaded.", |
279
|
|
|
|
|
|
|
}, |
280
|
|
|
|
|
|
|
'Bio::NEXUS::Util::Exceptions::BadFormat' => { |
281
|
|
|
|
|
|
|
'isa' => 'Bio::NEXUS::Util::Exceptions::System', |
282
|
|
|
|
|
|
|
'description' => "This kind of error happens when a bad\nparse or unparse format was specified.", |
283
|
|
|
|
|
|
|
}, |
284
|
|
|
|
|
|
|
|
285
|
|
|
|
|
|
|
); |
286
|
|
|
|
|
|
|
|
287
|
|
|
|
|
|
|
|
288
|
|
|
|
|
|
|
1; |
289
|
|
|
|
|
|
|
__END__ |