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1 | package Moo::HandleMoose; |
2 | |
3 | use strictures 1; |
4 | use Moo::_Utils; |
5 | |
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6 | our %TYPE_MAP; |
7 | |
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8 | sub import { inject_all() } |
9 | |
10 | sub inject_all { |
11 | require Class::MOP; |
12 | inject_fake_metaclass_for($_) for grep $_ ne 'Moo::Object', keys %Moo::MAKERS; |
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13 | inject_fake_metaclass_for($_) for keys %Moo::Role::INFO; |
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14 | } |
15 | |
16 | sub inject_fake_metaclass_for { |
17 | my ($name) = @_; |
18 | require Class::MOP; |
19 | Class::MOP::store_metaclass_by_name( |
20 | $name, bless({ name => $name }, 'Moo::HandleMoose::FakeMetaClass') |
21 | ); |
22 | } |
23 | |
24 | our %DID_INJECT; |
25 | |
26 | sub inject_real_metaclass_for { |
27 | my ($name) = @_; |
28 | return Class::MOP::get_metaclass_by_name($name) if $DID_INJECT{$name}; |
29 | require Moose; require Moo; require Moo::Role; |
30 | Class::MOP::remove_metaclass_by_name($name); |
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31 | my ($am_role, $meta, $attr_specs) = do { |
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32 | if (my $info = $Moo::Role::INFO{$name}) { |
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33 | (1, Moose::Meta::Role->initialize($name), $info->{attributes}) |
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34 | } else { |
35 | my $specs = Moo->_constructor_maker_for($name)->all_attribute_specs; |
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36 | (0, Moose::Meta::Class->initialize($name), $specs); |
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37 | } |
38 | }; |
39 | my %methods = %{Role::Tiny->_concrete_methods_of($name)}; |
40 | my @attrs; |
41 | { |
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42 | # This local is completely not required for roles but harmless |
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43 | local @{_getstash($name)}{keys %methods}; |
44 | foreach my $name (keys %$attr_specs) { |
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45 | my %spec = %{$attr_specs->{$name}}; |
46 | $spec{is} = 'ro' if $spec{is} eq 'lazy'; |
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47 | if (my $isa = $spec{isa}) { |
48 | $spec{isa} = do { |
49 | if (my $mapped = $TYPE_MAP{$isa}) { |
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50 | $mapped->(); |
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51 | } else { |
52 | Moose::Meta::TypeConstraint->new( |
53 | constraint => sub { eval { &$isa; 1 } } |
54 | ); |
55 | } |
56 | }; |
57 | } |
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58 | push @attrs, $meta->add_attribute($name => %spec); |
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59 | } |
60 | } |
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61 | if ($am_role) { |
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62 | my $info = $Moo::Role::INFO{$name}; |
63 | $meta->add_required_methods(@{$info->{requires}}); |
64 | foreach my $modifier (@{$info->{modifiers}}) { |
65 | my ($type, @args) = @$modifier; |
66 | $meta->${\"add_${type}_method_modifier"}(@args); |
67 | } |
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68 | } else { |
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69 | foreach my $attr (@attrs) { |
70 | foreach my $method (@{$attr->associated_methods}) { |
71 | $method->{body} = $name->can($method->name); |
72 | } |
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73 | } |
74 | } |
75 | $DID_INJECT{$name} = 1; |
76 | $meta; |
77 | } |
78 | |
79 | { |
80 | package Moo::HandleMoose::FakeMetaClass; |
81 | |
82 | sub DESTROY { } |
83 | |
84 | sub AUTOLOAD { |
85 | my ($meth) = (our $AUTOLOAD =~ /([^:]+)$/); |
86 | Moo::HandleMoose::inject_real_metaclass_for((shift)->{name})->$meth(@_) |
87 | } |
88 | sub can { |
89 | Moo::HandleMoose::inject_real_metaclass_for((shift)->{name})->can(@_) |
90 | } |
91 | sub isa { |
92 | Moo::HandleMoose::inject_real_metaclass_for((shift)->{name})->isa(@_) |
93 | } |
94 | } |
95 | |
96 | 1; |