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code |
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46944
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use strict; |
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2
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6
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2
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79
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2
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2
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2
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12
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use warnings; |
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2
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5
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2
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144
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3
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4
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package Sub::Methodical; |
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6
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our $VERSION = '0.002'; |
7
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8
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my %methodical; |
9
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my %wrapped; |
10
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my %auto_methodical; |
11
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12
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2
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2
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12
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use B; |
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2
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10
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2
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125
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13
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2
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2
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1805
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use PadWalker; |
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2
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2163
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2
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105
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14
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2
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2
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3147
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use Filter::EOF; |
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2
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5947
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2
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13
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15
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2
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2
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2101
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use Sub::Install (); |
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2
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3909
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2
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259
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16
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use Sub::Exporter -setup => { |
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exports => [ |
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MODIFY_CODE_ATTRIBUTES => \&_build_MODIFY, |
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AUTOLOAD => \&_build_AUTOLOAD, |
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], |
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groups => { |
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default => [qw(MODIFY_CODE_ATTRIBUTES)], |
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inherit => [qw(AUTOLOAD)], |
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}, |
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collectors => { |
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-auto => sub { |
27
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1
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724
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my ($col, $arg) = @_; |
28
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1
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4
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$auto_methodical{$arg->{into}} = 1; |
29
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1
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2
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push @{ $arg->{import_args} }, ( |
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1
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5
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30
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[ 'MODIFY_CODE_ATTRIBUTES', undef ], |
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); |
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}, |
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}, |
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2
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2
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2449
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}; |
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2
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26035
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2
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52
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35
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36
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sub _build_MODIFY { |
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Filter::EOF->on_eof_call(sub { |
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3
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3
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1823
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for my $pkg (keys %methodical) { |
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2
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4
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for my $sub (@{ $methodical{$pkg} }) { |
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2
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7
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40
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2
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5
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_wrap($pkg, $sub); |
41
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} |
42
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} |
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3
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244
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for my $pkg (keys %auto_methodical) { |
44
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2
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2
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1406
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no strict 'refs'; |
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2
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6
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2
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1018
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45
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2
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4
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for my $subname (grep { |
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64
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231
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46
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2
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16
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!/^MODIFY_.+_ATTRIBUTES$/ && |
47
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$_ ne 'AUTOLOAD' && |
48
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!/^_/ && |
49
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70
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100
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100
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419
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*{$pkg . '::' . $_}{CODE} |
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100
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50
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} keys %{$pkg . '::'}) { |
51
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58
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174
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my $sub = \&{$pkg . '::' . $subname}; |
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58
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144
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52
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58
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100
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400
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next unless B::svref_2object($sub)->STASH->NAME eq $pkg; |
53
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2
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6
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_wrap($pkg, $sub); |
54
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} |
55
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} |
56
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3
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3
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438
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}); |
57
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return sub { |
58
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1
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1
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2841
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my ($pkg, $ref, @attrs) = @_; |
59
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60
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1
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50
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33
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6
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if (ref $ref eq 'CODE' and grep { $_ eq 'Methodical' } @attrs) { |
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1
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7
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61
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1
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50
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1
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push @{ $methodical{$pkg} ||= [] }, $ref; |
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1
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10
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62
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1
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2
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@attrs = grep { $_ ne 'Methodical' } @attrs; |
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1
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3
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63
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} |
64
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1
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3
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return @attrs; |
65
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3
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95
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}; |
66
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} |
67
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68
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sub _build_AUTOLOAD { |
69
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return sub { |
70
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2
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2
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2095
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our $AUTOLOAD; |
71
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2
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12
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my ($pkg, $method) = $AUTOLOAD =~ /^(.+)::(.+)$/; |
72
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2
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100
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7
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my ($wrap_pkg) = grep { $pkg->isa($_) && $wrapped{$_}{$method} } |
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4
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41
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73
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keys %wrapped; |
74
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2
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100
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6
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if ($wrap_pkg) { |
75
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2
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2
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13
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no strict 'refs'; |
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2
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5
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2
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969
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76
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1
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3
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goto &{$wrap_pkg . '::' . $method}; |
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1
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8
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77
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} |
78
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1
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10
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require Carp; |
79
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1
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177
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Carp::croak "Undefined subroutine &$AUTOLOAD called"; |
80
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2
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2
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1343
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}; |
81
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} |
82
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83
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sub _wrap { |
84
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4
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4
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9
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my ($pkg, $sub) = @_; |
85
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4
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23
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require B; |
86
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4
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51
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my $name = B::svref_2object($sub)->GV->NAME; |
87
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4
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35
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(my $as = $name) =~ s/.*:://; |
88
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#warn "wrapping $name ($pkg\::$as)\n"; |
89
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4
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10
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$wrapped{$pkg}{$as} = $sub; |
90
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Sub::Install::reinstall_sub({ |
91
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into => $pkg, |
92
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as => $as, |
93
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code => sub { |
94
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12
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100
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12
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3897
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if (eval { $_[0]->isa($pkg) }) { |
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12
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86
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95
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#warn "calling $name directly: @_\n"; |
96
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7
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20
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return $sub->(@_); |
97
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} |
98
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5
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35
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my $pad = PadWalker::peek_my(1); |
99
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5
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10
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my $self = $pad->{'$self'}; |
100
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5
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50
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13
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unless ($self) { |
101
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0
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0
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die "can't find \$self!"; |
102
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} |
103
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5
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50
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6
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unless (eval { $$self->isa($pkg) }) { |
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5
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40
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104
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0
|
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0
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require Carp; |
105
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0
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0
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Carp::croak sprintf |
106
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"Methodical '%s' called with incorrect invocant '%s' (wanted '%s')", |
107
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$as, $$self, $pkg; |
108
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} |
109
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#warn "calling $name with self = $$self, @_\n"; |
110
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5
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28
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$$self->$as(@_); |
111
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}, |
112
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4
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88
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}); |
113
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} |
114
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115
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1; |
116
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__END__ |