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package Object::InterfaceType; |
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2
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2
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1024
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use strict; |
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4
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2
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77
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3
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2
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2
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10
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use warnings; |
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3
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2
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57
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4
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2
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2
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10
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use base 'Exporter'; |
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2
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2
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2
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314
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5
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our @EXPORT = 'interface_type'; |
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our $VERSION = '0.01'; |
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8
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2
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2
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12
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use Scalar::Util 'blessed'; |
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2
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2
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1216
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9
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10
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sub interface_type { |
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6
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6
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1
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57
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my($typename, $methods) = @_; |
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6
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9
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my $caller = caller(0); |
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6
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100
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14
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if (ref($typename) eq 'ARRAY') { |
14
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3
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5
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$methods = $typename; |
15
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3
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5
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$typename = undef; |
16
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} |
17
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6
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50
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33
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34
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$methods = [] unless $methods && ref($methods) eq 'ARRAY'; |
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19
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my $code = sub { |
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22
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22
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90
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my $class = blessed $_[0]; |
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22
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100
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57
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return unless $class; |
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18
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100
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18
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$class->can($_) or return for @{ $methods }; |
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18
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139
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23
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12
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51
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return 1; |
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6
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24
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}; |
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26
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6
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100
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18
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return $code unless defined $typename; |
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2
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2
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223
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no strict 'refs'; |
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2
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3
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2
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385
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28
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3
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3
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*{"$caller\::is_$typename"} = $code; |
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3
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16
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29
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} |
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31
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1; |
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__END__ |