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62609
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use strict; |
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use warnings; |
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package Pad::Tie; |
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1441
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use Pad::Tie::LP; |
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64
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3064
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use Data::OptList; |
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27365
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18
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use Module::Pluggable ( |
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require => 1, |
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except => qr/^Pad::Tie::Plugin::Base::/, |
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2158
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); |
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23849
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164
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use Carp (); |
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1125
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14
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our $VERSION = '0.006'; |
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my %METHOD; |
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sub new { |
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1
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my $class = shift; |
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1
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my ($invocant, $methods) = @_; |
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1
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$methods = Data::OptList::mkopt($methods); |
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1
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98
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my $self = bless { |
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invocant => $invocant, |
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methods => $methods, |
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persist => Pad::Tie::LP->new, |
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pre_call => [], |
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} => $class; |
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1
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$self->build_context; |
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#tie %{ $self->{context} }, 'Pad::Tie::Context', $self; |
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1
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$self->{persist}->set_context(_ => $self->{context}); |
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1
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return $self; |
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} |
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sub build_methods { |
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1
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1
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0
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my $class = ref($_[0]) || $_[0]; |
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1
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7
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for my $plugin ($class->plugins) { |
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22837
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for my $provided ($plugin->provides) { |
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#warn "$plugin provides $provided\n"; |
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$METHOD{$provided} = $plugin; |
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} |
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} |
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} |
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sub build_context { |
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1
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1
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0
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3
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my $self = shift; |
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1
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10
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my $methods = shift || $self->{methods}; |
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1
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50
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8
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$self->{context} ||= {}; |
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1
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50
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$self->build_methods unless %METHOD; |
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1
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5
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for (@$methods) { |
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8
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15
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my ($method_personality, $plugin_arg) = @$_; |
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8
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22
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Carp::confess "unhandled method personality: $method_personality" |
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unless $METHOD{$method_personality}; |
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8
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10
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my $plugin = $METHOD{$method_personality}; |
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8
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100
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44
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my $rv = $plugin->$method_personality( |
54
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$self->{context}, |
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$self->{invocant}, $plugin_arg, |
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) || {}; |
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# XXX I hate this but I can't think of a better way to do it offhand. |
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# if you aren't me, don't use this; talk to me about it instead. -- hdp, |
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# 2007-04-24 |
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8
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100
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124
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if ($rv->{pre_call}) { |
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3
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4
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push @{ $self->{pre_call} }, @{ $rv->{pre_call} }; |
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3
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6
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3
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11
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62
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} |
63
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} |
64
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} |
65
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66
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sub clone { |
67
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0
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0
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0
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0
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my ($self, $invocant) = @_; |
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# XXX validate $invocant? |
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# XXX does 'persist' need to be duplicated also? |
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# I don't think it has any permanent state that is interesting |
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0
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0
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return bless { |
72
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%$self, |
73
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invocant => $invocant, |
74
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} => ref($self), |
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} |
76
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77
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sub call { |
78
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9
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9
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0
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1639
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my ($self, $code, @args) = @_; |
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9
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17
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$_->($self, $code, \@args) for @{ $self->{pre_call} }; |
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9
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78
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80
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9
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110
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return $self->{persist}->call($code, @args); |
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} |
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83
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sub wrap { |
84
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0
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0
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0
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my ($self, $code) = @_; |
85
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0
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0
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return sub { $self->call($code, @_) }; |
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0
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86
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} |
87
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88
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1; |
89
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90
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__END__ |