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1 | package MooseX::StrictConstructor::Trait::Class; |
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2 | |
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3 | use Moose::Role; |
4 | |
5 | use namespace::autoclean; |
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6 | |
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7 | use B (); |
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8 | use Carp (); |
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9 | |
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10 | around '_inline_BUILDALL' => sub { |
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11 | my $orig = shift; |
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12 | my $self = shift; |
13 | |
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14 | my @source = $self->$orig(); |
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15 | |
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16 | my @attrs = ( |
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17 | '__INSTANCE__ => 1,', |
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18 | map { B::perlstring($_) . ' => 1,' } |
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19 | grep {defined} |
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20 | map { $_->init_arg() } $self->get_all_attributes() |
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21 | ); |
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22 | |
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23 | return ( |
24 | @source, |
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25 | 'my %attrs = (' . ( join ' ', @attrs ) . ');', |
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26 | 'my @bad = sort grep { !$attrs{$_} } keys %{ $params };', |
27 | 'if (@bad) {', |
28 | 'Carp::confess "Found unknown attribute(s) passed to the constructor: @bad";', |
29 | '}', |
30 | ); |
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31 | }; |
32 | |
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33 | 1; |
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34 | |
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35 | # ABSTRACT: A role to make immutable constructors strict |
36 | |
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37 | __END__ |
38 | |
39 | =pod |
40 | |
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41 | =head1 DESCRIPTION |
42 | |
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43 | This role simply wraps C<_inline_BUILDALL()> (from |
44 | C<Moose::Meta::Class>) so that immutable classes have a |
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45 | strict constructor. |
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46 | |
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47 | =cut |