line |
stmt |
bran |
cond |
sub |
pod |
time |
code |
1
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package Data::Focus::Lens::Composite; |
2
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23
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23
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115
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use strict; |
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23
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52
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23
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810
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3
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23
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23
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208
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use warnings; |
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23
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33
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23
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726
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4
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23
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23
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12410
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use parent qw(Data::Focus::Lens); |
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23
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11388
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23
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180
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5
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6
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sub new { |
7
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12834
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12834
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1
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19843
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my ($class, @lenses) = @_; |
8
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12834
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33408
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require Data::Focus; |
9
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12834
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13118
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@lenses = map { Data::Focus->coerce_to_lens($_) } @lenses; |
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12866
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24115
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10
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12834
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49063
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return bless \@lenses, $class; |
11
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} |
12
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13
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sub apply_lens { |
14
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12835
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12835
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1
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14677
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my ($self, $applicative_class, $part_mapper, $whole) = @_; |
15
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12835
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16558
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my $top_lens = $self->[0]; |
16
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12835
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100
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20889
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if(!defined($top_lens)) { |
17
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44
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111
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return $part_mapper->($whole); |
18
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} |
19
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12791
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15954
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foreach my $lens (reverse @{$self}[1 .. $#$self]) { |
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12791
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25262
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20
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77
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75
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my $cur_part_mapper = $part_mapper; |
21
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77
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111
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292
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$part_mapper = sub { $lens->apply_lens($applicative_class, $cur_part_mapper, shift) }; |
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111
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254
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22
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} |
23
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12791
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30445
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return $top_lens->apply_lens($applicative_class, $part_mapper, $whole); |
24
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} |
25
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26
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27
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1; |
28
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__END__ |