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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 | our $SETUP_DONE; |
9 | |
10 | sub import { return if $SETUP_DONE; inject_all(); $SETUP_DONE = 1; } |
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11 | |
12 | sub inject_all { |
13 | require Class::MOP; |
14 | inject_fake_metaclass_for($_) for grep $_ ne 'Moo::Object', keys %Moo::MAKERS; |
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15 | inject_fake_metaclass_for($_) for keys %Moo::Role::INFO; |
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16 | } |
17 | |
18 | sub inject_fake_metaclass_for { |
19 | my ($name) = @_; |
20 | require Class::MOP; |
21 | Class::MOP::store_metaclass_by_name( |
22 | $name, bless({ name => $name }, 'Moo::HandleMoose::FakeMetaClass') |
23 | ); |
24 | } |
25 | |
26 | our %DID_INJECT; |
27 | |
28 | sub inject_real_metaclass_for { |
29 | my ($name) = @_; |
30 | return Class::MOP::get_metaclass_by_name($name) if $DID_INJECT{$name}; |
31 | require Moose; require Moo; require Moo::Role; |
32 | Class::MOP::remove_metaclass_by_name($name); |
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33 | my ($am_role, $meta, $attr_specs) = do { |
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34 | if (my $info = $Moo::Role::INFO{$name}) { |
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35 | (1, Moose::Meta::Role->initialize($name), $info->{attributes}) |
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36 | } else { |
37 | my $specs = Moo->_constructor_maker_for($name)->all_attribute_specs; |
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38 | (0, Moose::Meta::Class->initialize($name), $specs); |
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39 | } |
40 | }; |
41 | my %methods = %{Role::Tiny->_concrete_methods_of($name)}; |
42 | my @attrs; |
43 | { |
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44 | # This local is completely not required for roles but harmless |
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45 | local @{_getstash($name)}{keys %methods}; |
46 | foreach my $name (keys %$attr_specs) { |
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47 | my %spec = %{$attr_specs->{$name}}; |
48 | $spec{is} = 'ro' if $spec{is} eq 'lazy'; |
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49 | if (my $isa = $spec{isa}) { |
50 | $spec{isa} = do { |
51 | if (my $mapped = $TYPE_MAP{$isa}) { |
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52 | $mapped->(); |
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53 | } else { |
54 | Moose::Meta::TypeConstraint->new( |
55 | constraint => sub { eval { &$isa; 1 } } |
56 | ); |
57 | } |
58 | }; |
59 | } |
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60 | push @attrs, $meta->add_attribute($name => %spec); |
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61 | } |
62 | } |
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63 | if ($am_role) { |
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64 | my $info = $Moo::Role::INFO{$name}; |
65 | $meta->add_required_methods(@{$info->{requires}}); |
66 | foreach my $modifier (@{$info->{modifiers}}) { |
67 | my ($type, @args) = @$modifier; |
68 | $meta->${\"add_${type}_method_modifier"}(@args); |
69 | } |
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70 | } else { |
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71 | foreach my $attr (@attrs) { |
72 | foreach my $method (@{$attr->associated_methods}) { |
73 | $method->{body} = $name->can($method->name); |
74 | } |
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75 | } |
76 | } |
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77 | $meta->add_role(Class::MOP::class_of($_)) |
78 | for keys %{$Role::Tiny::APPLIED_TO{$name}}; |
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79 | $DID_INJECT{$name} = 1; |
80 | $meta; |
81 | } |
82 | |
83 | { |
84 | package Moo::HandleMoose::FakeMetaClass; |
85 | |
86 | sub DESTROY { } |
87 | |
88 | sub AUTOLOAD { |
89 | my ($meth) = (our $AUTOLOAD =~ /([^:]+)$/); |
90 | Moo::HandleMoose::inject_real_metaclass_for((shift)->{name})->$meth(@_) |
91 | } |
92 | sub can { |
93 | Moo::HandleMoose::inject_real_metaclass_for((shift)->{name})->can(@_) |
94 | } |
95 | sub isa { |
96 | Moo::HandleMoose::inject_real_metaclass_for((shift)->{name})->isa(@_) |
97 | } |
98 | } |
99 | |
100 | 1; |