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3362e41c |
1 | package Moo::HandleMoose; |
2 | |
3 | use strictures 1; |
4 | use Moo::_Utils; |
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5 | use B qw(perlstring); |
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6 | |
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7 | our %TYPE_MAP; |
8 | |
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9 | our $SETUP_DONE; |
10 | |
11 | sub import { return if $SETUP_DONE; inject_all(); $SETUP_DONE = 1; } |
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12 | |
13 | sub inject_all { |
14 | require Class::MOP; |
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15 | inject_fake_metaclass_for($_) |
16 | for grep $_ ne 'Moo::Object', do { no warnings 'once'; keys %Moo::MAKERS }; |
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17 | inject_fake_metaclass_for($_) for keys %Moo::Role::INFO; |
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18 | require Moose::Meta::Method::Constructor; |
19 | @Moo::HandleMoose::FakeConstructor::ISA = 'Moose::Meta::Method::Constructor'; |
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20 | } |
21 | |
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22 | sub maybe_reinject_fake_metaclass_for { |
23 | my ($name) = @_; |
24 | our %DID_INJECT; |
25 | if (delete $DID_INJECT{$name}) { |
26 | inject_fake_metaclass_for($name); |
27 | } |
28 | } |
29 | |
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30 | sub inject_fake_metaclass_for { |
31 | my ($name) = @_; |
32 | require Class::MOP; |
33 | Class::MOP::store_metaclass_by_name( |
34 | $name, bless({ name => $name }, 'Moo::HandleMoose::FakeMetaClass') |
35 | ); |
36 | } |
37 | |
7ecb13a6 |
38 | { |
39 | package Moo::HandleMoose::FakeConstructor; |
40 | |
41 | sub _uninlined_body { \&Moose::Object::new } |
42 | } |
43 | |
44 | |
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45 | sub inject_real_metaclass_for { |
46 | my ($name) = @_; |
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47 | our %DID_INJECT; |
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48 | return Class::MOP::get_metaclass_by_name($name) if $DID_INJECT{$name}; |
49 | require Moose; require Moo; require Moo::Role; |
50 | Class::MOP::remove_metaclass_by_name($name); |
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51 | my ($am_role, $meta, $attr_specs, $attr_order) = do { |
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52 | if (my $info = $Moo::Role::INFO{$name}) { |
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53 | my @attr_info = @{$info->{attributes}||[]}; |
54 | (1, Moose::Meta::Role->initialize($name), |
55 | { @attr_info }, |
56 | [ @attr_info[grep !($_ % 2), 0..$#attr_info] ] |
57 | ) |
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58 | } else { |
59 | my $specs = Moo->_constructor_maker_for($name)->all_attribute_specs; |
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60 | (0, Moose::Meta::Class->initialize($name), $specs, |
61 | [ sort { $specs->{$a}{index} <=> $specs->{$b}{index} } keys %$specs ] |
62 | ); |
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63 | } |
64 | }; |
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65 | |
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66 | my %methods = %{Role::Tiny->_concrete_methods_of($name)}; |
46269e18 |
67 | # needed to ensure the method body is stable and get things named |
68 | Sub::Defer::undefer_sub($_) for grep defined, values %methods; |
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69 | my @attrs; |
70 | { |
55afe266 |
71 | # This local is completely not required for roles but harmless |
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72 | local @{_getstash($name)}{keys %methods}; |
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73 | my %seen_name; |
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74 | foreach my $name (@$attr_order) { |
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75 | $seen_name{$name} = 1; |
55afe266 |
76 | my %spec = %{$attr_specs->{$name}}; |
99b8bec0 |
77 | delete $spec{index}; |
2bb6aaa3 |
78 | $spec{is} = 'ro' if $spec{is} eq 'lazy' or $spec{is} eq 'rwp'; |
f8d65713 |
79 | delete $spec{asserter}; |
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80 | if (my $isa = $spec{isa}) { |
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81 | my $tc = $spec{isa} = do { |
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82 | if (my $mapped = $TYPE_MAP{$isa}) { |
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83 | $mapped->(); |
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84 | } else { |
85 | Moose::Meta::TypeConstraint->new( |
86 | constraint => sub { eval { &$isa; 1 } } |
87 | ); |
88 | } |
89 | }; |
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90 | if (my $coerce = $spec{coerce}) { |
91 | $tc->coercion(Moose::Meta::TypeCoercion->new) |
92 | ->_compiled_type_coercion($coerce); |
93 | $spec{coerce} = 1; |
94 | } |
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95 | } elsif (my $coerce = $spec{coerce}) { |
96 | my $attr = perlstring($name); |
97 | my $tc = Moose::Meta::TypeConstraint->new( |
98 | constraint => sub { die "This is not going to work" }, |
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99 | inlined => sub { |
100 | 'my $r = $_[42]{'.$attr.'}; $_[42]{'.$attr.'} = 1; $r' |
101 | }, |
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102 | ); |
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103 | $tc->coercion(Moose::Meta::TypeCoercion->new) |
104 | ->_compiled_type_coercion($coerce); |
105 | $spec{isa} = $tc; |
106 | $spec{coerce} = 1; |
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107 | } |
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108 | push @attrs, $meta->add_attribute($name => %spec); |
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109 | } |
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110 | foreach my $mouse (do { our %MOUSE; @{$MOUSE{$name}||[]} }) { |
111 | foreach my $attr ($mouse->get_all_attributes) { |
112 | my %spec = %{$attr}; |
113 | delete @spec{qw( |
114 | associated_class associated_methods __METACLASS__ |
115 | provides curries |
116 | )}; |
117 | my $name = delete $spec{name}; |
118 | next if $seen_name{$name}++; |
119 | push @attrs, $meta->add_attribute($name => %spec); |
120 | } |
121 | } |
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122 | } |
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123 | if ($am_role) { |
146fb407 |
124 | my $info = $Moo::Role::INFO{$name}; |
125 | $meta->add_required_methods(@{$info->{requires}}); |
126 | foreach my $modifier (@{$info->{modifiers}}) { |
127 | my ($type, @args) = @$modifier; |
128 | $meta->${\"add_${type}_method_modifier"}(@args); |
129 | } |
55afe266 |
130 | } else { |
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131 | foreach my $attr (@attrs) { |
132 | foreach my $method (@{$attr->associated_methods}) { |
133 | $method->{body} = $name->can($method->name); |
134 | } |
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135 | } |
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136 | bless( |
137 | $meta->find_method_by_name('new'), |
138 | 'Moo::HandleMoose::FakeConstructor', |
139 | ); |
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140 | } |
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141 | $meta->add_role(Class::MOP::class_of($_)) |
a3411285 |
142 | for grep !/\|/ && $_ ne $name, # reject Foo|Bar and same-role-as-self |
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143 | do { no warnings 'once'; keys %{$Role::Tiny::APPLIED_TO{$name}} }; |
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144 | $DID_INJECT{$name} = 1; |
145 | $meta; |
146 | } |
147 | |
148 | { |
149 | package Moo::HandleMoose::FakeMetaClass; |
150 | |
151 | sub DESTROY { } |
152 | |
153 | sub AUTOLOAD { |
154 | my ($meth) = (our $AUTOLOAD =~ /([^:]+)$/); |
155 | Moo::HandleMoose::inject_real_metaclass_for((shift)->{name})->$meth(@_) |
156 | } |
157 | sub can { |
158 | Moo::HandleMoose::inject_real_metaclass_for((shift)->{name})->can(@_) |
159 | } |
160 | sub isa { |
161 | Moo::HandleMoose::inject_real_metaclass_for((shift)->{name})->isa(@_) |
162 | } |
163 | } |
164 | |
165 | 1; |