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package Aspect::Pointcut::Or; |
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997
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use strict; |
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use warnings; |
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9071
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use Aspect::Pointcut::Logic (); |
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our $VERSION = '0.97_06'; |
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our @ISA = 'Aspect::Pointcut::Logic'; |
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###################################################################### |
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# Constructor |
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sub new { |
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1
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my $class = shift; |
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my @parts = @_; |
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# Validate the pointcut subexpressions |
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foreach my $part ( @parts ) { |
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next if Params::Util::_INSTANCE($part, 'Aspect::Pointcut'); |
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Carp::croak("Attempted to apply pointcut logic to non-pointcut '$part'"); |
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} |
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# Collapse nested or statements at constructor time so we don't have |
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# to do so multiple times later on during currying. |
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while ( scalar grep { $_->isa('Aspect::Pointcut::Or') } @parts ) { |
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@parts = map { |
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$_->isa('Aspect::Pointcut::Or') ? @$_ : $_ |
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} @parts; |
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} |
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$class->SUPER::new(@parts); |
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} |
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###################################################################### |
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# Weaving Methods |
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sub compile_weave { |
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3
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1
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my $self = shift; |
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3
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my @children = map { $_->compile_weave } @$self; |
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# Collapse string conditions together, |
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# and further collapse code conditions together. |
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3
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my @string = (); |
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my @code = (); |
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3
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foreach my $child ( @children ) { |
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# Short-cut if we contain any purely runtime pointcuts |
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unless ( ref $child ) { |
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return 1 if $child eq 1; |
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push @string, $child; |
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next; |
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} |
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0
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0
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if ( @string ) { |
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my $group = join ' or ', map { "( $_ )" } @string; |
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62
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0
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push @code, eval "sub () { $group }"; |
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@string = (); |
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} |
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push @code, $child; |
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} |
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68
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3
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50
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8
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if ( @string ) { |
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3
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my $group = join ' or ', map { "( $_ )" } @string; |
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70
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3
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50
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unless ( @code ) { |
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# This is the only thing we have |
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3
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return $group; |
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} |
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0
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0
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push @code, eval "sub () { $group }"; |
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} |
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77
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# Join the groups |
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return sub { |
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0
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0
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0
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foreach my $child ( @code ) { |
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0
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0
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return 0 unless $child->(); |
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} |
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0
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return 1; |
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0
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}; |
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85
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} |
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sub compile_runtime { |
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1
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1
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1
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1
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my $self = shift; |
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1
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3
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my @children = map { $_->compile_runtime } @$self; |
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9
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90
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91
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# Collapse string conditions together, |
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# and further collapse code conditions together. |
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1
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2
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my @string = (); |
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1
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1
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my @code = (); |
95
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1
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3
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foreach my $child ( @children ) { |
96
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# Short-cut if we contain any purely runtime pointcuts |
97
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2
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50
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3
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unless ( ref $child ) { |
98
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2
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50
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4
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return 1 if $child eq 1; |
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2
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3
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push @string, $child; |
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2
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2
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next; |
101
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} |
102
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0
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0
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0
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if ( @string ) { |
103
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0
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0
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my $group = join ' or ', map { "( $_ )" } @string; |
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0
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0
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104
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0
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0
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push @code, eval "sub () { $group }"; |
105
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0
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0
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@string = (); |
106
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} |
107
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0
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0
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push @code, $child; |
108
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} |
109
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110
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1
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50
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2
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if ( @string ) { |
111
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1
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2
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my $group = join ' or ', map { "( $_ )" } @string; |
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2
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8
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112
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1
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50
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4
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unless ( @code ) { |
113
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# This is the only thing we have |
114
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1
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2
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return $group; |
115
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} |
116
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0
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0
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push @code, eval "sub () { $group }"; |
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} |
118
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119
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# Join the groups |
120
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return sub { |
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0
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0
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0
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foreach my $child ( @code ) { |
122
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0
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0
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0
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return 0 unless $child->(); |
123
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} |
124
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0
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0
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return 1; |
125
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0
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0
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}; |
126
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127
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} |
128
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129
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sub match_contains { |
130
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9
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9
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1
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9
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my $self = shift; |
131
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9
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50
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56
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my $count = $self->isa($_[0]) ? 1 : 0; |
132
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9
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37
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foreach my $child ( @$self ) { |
133
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18
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38
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$count += $child->match_contains($_[0]); |
134
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} |
135
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9
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19
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return $count; |
136
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} |
137
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138
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sub match_runtime { |
139
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7
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7
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0
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10
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my $self = shift; |
140
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7
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14
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foreach my $child ( @$self ) { |
141
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15
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100
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39
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return 1 if $child->match_runtime; |
142
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} |
143
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2
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7
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return 0; |
144
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} |
145
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146
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sub curry_weave { |
147
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4
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4
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1
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2802
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my $self = shift; |
148
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4
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9
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my @list = @$self; |
149
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150
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# Curry down our children. Any null element always matches, and |
151
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# therefore in an OR scenario the entire expression always matches. |
152
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4
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8
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my @or = (); |
153
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4
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9
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foreach my $child ( @list ) { |
154
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8
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100
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20
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my $curried = $child->curry_weave or return; |
155
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7
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11
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push @or, $curried; |
156
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} |
157
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158
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# If none are left, curry us away to nothing |
159
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3
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50
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9
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return unless @or; |
160
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161
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# If only one remains, curry us away to just that child |
162
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3
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50
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7
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return $list[0] if @or == 1; |
163
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164
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# Create our clone to hold the curried subset |
165
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3
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11
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return ref($self)->new(@or); |
166
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} |
167
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168
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sub curry_runtime { |
169
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7
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7
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1
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1490
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my $self = shift; |
170
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7
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16
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my @list = @$self; |
171
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172
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# Should we strip out the call pointcuts |
173
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7
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8
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my $strip = shift; |
174
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7
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100
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16
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unless ( defined $strip ) { |
175
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# Are there any elements that MUST exist at run-time? |
176
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6
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100
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11
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if ( $self->match_runtime ) { |
177
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# If we have any nested logic that themselves contain |
178
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# call pointcuts, we can't strip. |
179
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$strip = not scalar grep { |
180
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4
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50
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6
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$_->isa('Aspect::Pointcut::Logic') |
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13
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43
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181
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and |
182
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$_->match_contains('Aspect::Pointcut::Call') |
183
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} @list; |
184
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} else { |
185
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# Nothing at runtime, so we can strip |
186
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2
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3
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$strip = 1; |
187
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} |
188
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} |
189
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190
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# Curry down our children |
191
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8
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14
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@list = grep { defined $_ } map { |
192
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7
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100
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13
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$_->isa('Aspect::Pointcut::Call') |
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20
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100
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68
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193
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? $strip |
194
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? $_->curry_runtime($strip) |
195
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: $_ |
196
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: $_->curry_runtime($strip) |
197
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} @list; |
198
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199
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# If none are left, curry us away to nothing |
200
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7
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100
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23
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return unless @list; |
201
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202
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|
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# If only one remains, curry us away to just that child |
203
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5
|
100
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15
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return $list[0] if @list == 1; |
204
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205
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# Create our clone to hold the curried subset |
206
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2
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9
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return ref($self)->new( @list ); |
207
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} |
208
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209
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1; |
210
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211
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__END__ |