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1 | |
2 | package Moose::Meta::Method::Constructor; |
3 | |
4 | use strict; |
5 | use warnings; |
6 | |
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7 | use Carp (); |
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8 | use Scalar::Util 'blessed', 'weaken', 'looks_like_number', 'refaddr'; |
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9 | use Try::Tiny; |
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10 | |
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11 | our $AUTHORITY = 'cpan:STEVAN'; |
12 | |
badb7e89 |
13 | use base 'Moose::Meta::Method', |
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14 | 'Class::MOP::Method::Constructor'; |
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15 | |
16 | sub new { |
17 | my $class = shift; |
18 | my %options = @_; |
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19 | |
3e504337 |
20 | my $meta = $options{metaclass}; |
21 | |
22 | (ref $options{options} eq 'HASH') |
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23 | || $class->throw_error("You must pass a hash of options", data => $options{options}); |
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24 | |
1b2aea39 |
25 | ($options{package_name} && $options{name}) |
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26 | || $class->throw_error("You must supply the package_name and name parameters $Class::MOP::Method::UPGRADE_ERROR_TEXT"); |
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27 | |
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28 | my $self = bless { |
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29 | 'body' => undef, |
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30 | 'package_name' => $options{package_name}, |
31 | 'name' => $options{name}, |
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32 | 'options' => $options{options}, |
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33 | 'associated_metaclass' => $meta, |
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34 | '_expected_method_class' => $options{_expected_method_class} || 'Moose::Object', |
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35 | } => $class; |
36 | |
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37 | # we don't want this creating |
38 | # a cycle in the code, if not |
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39 | # needed |
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40 | weaken($self->{'associated_metaclass'}); |
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41 | |
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42 | $self->_initialize_body; |
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43 | |
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44 | return $self; |
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45 | } |
46 | |
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47 | ## method |
48 | |
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49 | sub _initialize_body { |
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50 | my $self = shift; |
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51 | $self->{'body'} = $self->_generate_constructor_method_inline; |
52 | } |
53 | |
54 | sub _eval_environment { |
55 | my $self = shift; |
56 | |
57 | my $attrs = $self->_attributes; |
58 | |
59 | my $defaults = [map { $_->default } @$attrs]; |
60 | |
61 | # We need to check if the attribute ->can('type_constraint') |
62 | # since we may be trying to immutabilize a Moose meta class, |
63 | # which in turn has attributes which are Class::MOP::Attribute |
64 | # objects, rather than Moose::Meta::Attribute. And |
65 | # Class::MOP::Attribute attributes have no type constraints. |
66 | # However we need to make sure we leave an undef value there |
67 | # because the inlined code is using the index of the attributes |
68 | # to determine where to find the type constraint |
69 | |
70 | my @type_constraints = map { |
71 | $_->can('type_constraint') ? $_->type_constraint : undef |
72 | } @$attrs; |
73 | |
74 | my @type_constraint_bodies = map { |
75 | defined $_ ? $_->_compiled_type_constraint : undef; |
76 | } @type_constraints; |
77 | |
78 | return { |
79 | '$meta' => \$self, |
80 | '$attrs' => \$attrs, |
81 | '$defaults' => \$defaults, |
82 | '@type_constraints' => \@type_constraints, |
83 | '@type_constraint_bodies' => \@type_constraint_bodies, |
84 | }; |
85 | } |
86 | |
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87 | 1; |
88 | |
ad46f524 |
89 | # ABSTRACT: Method Meta Object for constructors |
90 | |
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91 | __END__ |
92 | |
93 | =pod |
94 | |
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95 | =head1 DESCRIPTION |
96 | |
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97 | This class is a subclass of L<Class::MOP::Method::Constructor> that |
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98 | provides additional Moose-specific functionality |
99 | |
100 | To understand this class, you should read the the |
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101 | L<Class::MOP::Method::Constructor> documentation as well. |
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102 | |
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103 | =head1 INHERITANCE |
104 | |
105 | C<Moose::Meta::Method::Constructor> is a subclass of |
106 | L<Moose::Meta::Method> I<and> L<Class::MOP::Method::Constructor>. |
107 | |
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108 | =head1 BUGS |
109 | |
110 | See L<Moose/BUGS> for details on reporting bugs. |
111 | |
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112 | =cut |
113 | |