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package Specio::Constraint::Role::CanType; |
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use strict; |
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use warnings; |
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our $VERSION = '0.47'; |
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use Scalar::Util qw( blessed ); |
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use Specio::PartialDump qw( partial_dump ); |
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use Storable qw( dclone ); |
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use Role::Tiny; |
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use Specio::Constraint::Role::Interface; |
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1697
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with 'Specio::Constraint::Role::Interface'; |
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{ |
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## no critic (Subroutines::ProtectPrivateSubs) |
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my $attrs = dclone( Specio::Constraint::Role::Interface::_attrs() ); |
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## use critic |
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for my $name (qw( parent _inline_generator )) { |
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$attrs->{$name}{init_arg} = undef; |
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$attrs->{$name}{builder} |
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= $name =~ /^_/ ? '_build' . $name : '_build_' . $name; |
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} |
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$attrs->{methods} = { |
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isa => 'ArrayRef', |
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required => 1, |
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}; |
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## no critic (Subroutines::ProhibitUnusedPrivateSubroutines) |
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sub _attrs { |
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return $attrs; |
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} |
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} |
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## no critic (Subroutines::ProhibitUnusedPrivateSubroutines) |
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sub _wrap_message_generator { |
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my $self = shift; |
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my $generator = shift; |
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7
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my $type = ( split /::/, blessed $self)[-1]; |
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my @methods = @{ $self->methods }; |
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46
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7
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my $all_word_list = _word_list(@methods); |
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my $allow_classes = $self->_allow_classes; |
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49
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unless ( defined $generator ) { |
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$generator = sub { |
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shift; |
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399
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my $value = shift; |
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54
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return |
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221
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100
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"An undef will never pass an $type check (wants $all_word_list)" |
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unless defined $value; |
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58
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214
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589
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my $class = blessed $value; |
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214
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100
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503
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if ( !defined $class ) { |
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# If we got here we know that blessed returned undef, so if |
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# it's a ref then it must not be blessed. |
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105
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100
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280
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if ( ref $value ) { |
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174
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my $dump = partial_dump($value); |
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return |
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279
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"An unblessed reference ($dump) will never pass an $type check (wants $all_word_list)"; |
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} |
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69
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# If it's defined and not an unblessed ref it must be a |
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# string. If we allow classes (vs just objects) then it might |
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# be a valid class name. But an empty string is never a valid |
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# class name. We cannot call q{}->can. |
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return |
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68
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100
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285
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"An empty string will never pass an $type check (wants $all_word_list)" |
75
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unless length $value; |
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77
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61
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100
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226
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if ( ref \$value eq 'GLOB' ) { |
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return |
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5
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47
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"A glob will never pass an $type check (wants $all_word_list)"; |
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} |
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82
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56
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100
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354
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if ( |
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$value =~ /\A |
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\s* |
85
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-?[0-9]+(?:\.[0-9]+)? |
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(?:[Ee][\-+]?[0-9]+)? |
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\s* |
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\z/xs |
89
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) { |
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return |
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41
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338
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"A number ($value) will never pass an $type check (wants $all_word_list)"; |
92
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} |
93
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94
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15
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100
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55
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$class = $value if $allow_classes; |
95
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96
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# At this point we either have undef or a non-empty string in |
97
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# $class. |
98
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15
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100
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48
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unless ( defined $class ) { |
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12
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63
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my $dump = partial_dump($value); |
100
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return |
101
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12
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115
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"A plain scalar ($dump) will never pass an $type check (wants $all_word_list)"; |
102
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} |
103
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} |
104
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105
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112
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291
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my @missing = grep { !$value->can($_) } @methods; |
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268
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1109
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106
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107
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112
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100
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433
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my $noun = @missing == 1 ? 'method' : 'methods'; |
108
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112
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232
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my $list = _word_list( map {qq['$_']} @missing ); |
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264
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807
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109
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110
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112
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904
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return "The $class class is missing the $list $noun"; |
111
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7
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54
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}; |
112
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} |
113
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114
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7
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221
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38
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return sub { $generator->( undef, @_ ) }; |
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12448
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115
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} |
116
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## use critic |
117
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118
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sub _word_list { |
119
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119
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119
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691
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my @items = sort { $a cmp $b } @_; |
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205
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692
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120
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121
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119
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100
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364
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return $items[0] if @items == 1; |
122
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117
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100
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431
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return join ' and ', @items if @items == 2; |
123
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124
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44
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110
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my $final = pop @items; |
125
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44
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132
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my $list = join ', ', @items; |
126
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44
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134
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$list .= ', and ' . $final; |
127
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128
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44
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126
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return $list; |
129
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} |
130
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131
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1; |
132
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133
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# ABSTRACT: Provides a common implementation for Specio::Constraint::AnyCan and Specio::Constraint::ObjectCan |
134
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135
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__END__ |
136
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137
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=pod |
138
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139
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=encoding UTF-8 |
140
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141
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=head1 NAME |
142
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143
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Specio::Constraint::Role::CanType - Provides a common implementation for Specio::Constraint::AnyCan and Specio::Constraint::ObjectCan |
144
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145
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=head1 VERSION |
146
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147
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version 0.47 |
148
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149
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=head1 DESCRIPTION |
150
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151
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See L<Specio::Constraint::AnyCan> and L<Specio::Constraint::ObjectCan> for |
152
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details. |
153
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154
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=head1 SUPPORT |
155
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156
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Bugs may be submitted at L<https://github.com/houseabsolute/Specio/issues>. |
157
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158
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I am also usually active on IRC as 'autarch' on C<irc://irc.perl.org>. |
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160
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=head1 SOURCE |
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162
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The source code repository for Specio can be found at L<https://github.com/houseabsolute/Specio>. |
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164
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=head1 AUTHOR |
165
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166
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Dave Rolsky <autarch@urth.org> |
167
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168
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=head1 COPYRIGHT AND LICENSE |
169
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170
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This software is Copyright (c) 2012 - 2021 by Dave Rolsky. |
171
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172
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This is free software, licensed under: |
173
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174
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The Artistic License 2.0 (GPL Compatible) |
175
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176
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The full text of the license can be found in the |
177
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F<LICENSE> file included with this distribution. |
178
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179
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=cut |