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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 | |
22 | sub inject_fake_metaclass_for { |
23 | my ($name) = @_; |
24 | require Class::MOP; |
25 | Class::MOP::store_metaclass_by_name( |
26 | $name, bless({ name => $name }, 'Moo::HandleMoose::FakeMetaClass') |
27 | ); |
28 | } |
29 | |
30 | our %DID_INJECT; |
31 | |
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32 | { |
33 | package Moo::HandleMoose::FakeConstructor; |
34 | |
35 | sub _uninlined_body { \&Moose::Object::new } |
36 | } |
37 | |
38 | |
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39 | sub inject_real_metaclass_for { |
40 | my ($name) = @_; |
41 | return Class::MOP::get_metaclass_by_name($name) if $DID_INJECT{$name}; |
42 | require Moose; require Moo; require Moo::Role; |
43 | Class::MOP::remove_metaclass_by_name($name); |
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44 | my ($am_role, $meta, $attr_specs, $attr_order) = do { |
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45 | if (my $info = $Moo::Role::INFO{$name}) { |
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46 | my @attr_info = @{$info->{attributes}||[]}; |
47 | (1, Moose::Meta::Role->initialize($name), |
48 | { @attr_info }, |
49 | [ @attr_info[grep !($_ % 2), 0..$#attr_info] ] |
50 | ) |
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51 | } else { |
52 | my $specs = Moo->_constructor_maker_for($name)->all_attribute_specs; |
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53 | (0, Moose::Meta::Class->initialize($name), $specs, |
54 | [ sort { $specs->{$a}{index} <=> $specs->{$b}{index} } keys %$specs ] |
55 | ); |
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56 | } |
57 | }; |
58 | my %methods = %{Role::Tiny->_concrete_methods_of($name)}; |
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59 | # needed to ensure the method body is stable and get things named |
60 | Sub::Defer::undefer_sub($_) for grep defined, values %methods; |
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61 | my @attrs; |
62 | { |
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63 | # This local is completely not required for roles but harmless |
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64 | local @{_getstash($name)}{keys %methods}; |
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65 | foreach my $name (@$attr_order) { |
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66 | my %spec = %{$attr_specs->{$name}}; |
99b8bec0 |
67 | delete $spec{index}; |
2bb6aaa3 |
68 | $spec{is} = 'ro' if $spec{is} eq 'lazy' or $spec{is} eq 'rwp'; |
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69 | delete $spec{asserter}; |
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70 | if (my $isa = $spec{isa}) { |
71 | $spec{isa} = do { |
72 | if (my $mapped = $TYPE_MAP{$isa}) { |
81cb9bab |
73 | $mapped->(); |
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74 | } else { |
75 | Moose::Meta::TypeConstraint->new( |
76 | constraint => sub { eval { &$isa; 1 } } |
77 | ); |
78 | } |
79 | }; |
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80 | die "Aaaargh" if $spec{coerce}; |
81 | } elsif (my $coerce = $spec{coerce}) { |
82 | my $attr = perlstring($name); |
83 | my $tc = Moose::Meta::TypeConstraint->new( |
84 | constraint => sub { die "This is not going to work" }, |
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85 | inlined => sub { |
86 | 'my $r = $_[42]{'.$attr.'}; $_[42]{'.$attr.'} = 1; $r' |
87 | }, |
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88 | ); |
89 | $tc->coercion(Moose::Meta::TypeCoercion->new) |
90 | ->_compiled_type_coercion($coerce); |
91 | $spec{isa} = $tc; |
92 | $spec{coerce} = 1; |
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93 | } |
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94 | push @attrs, $meta->add_attribute($name => %spec); |
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95 | } |
96 | } |
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97 | if ($am_role) { |
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98 | my $info = $Moo::Role::INFO{$name}; |
99 | $meta->add_required_methods(@{$info->{requires}}); |
100 | foreach my $modifier (@{$info->{modifiers}}) { |
101 | my ($type, @args) = @$modifier; |
102 | $meta->${\"add_${type}_method_modifier"}(@args); |
103 | } |
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104 | } else { |
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105 | foreach my $attr (@attrs) { |
106 | foreach my $method (@{$attr->associated_methods}) { |
107 | $method->{body} = $name->can($method->name); |
108 | } |
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109 | } |
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110 | bless( |
111 | $meta->find_method_by_name('new'), |
112 | 'Moo::HandleMoose::FakeConstructor', |
113 | ); |
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114 | } |
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115 | $meta->add_role(Class::MOP::class_of($_)) |
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116 | for do { no warnings 'once'; keys %{$Role::Tiny::APPLIED_TO{$name}} }; |
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117 | $DID_INJECT{$name} = 1; |
118 | $meta; |
119 | } |
120 | |
121 | { |
122 | package Moo::HandleMoose::FakeMetaClass; |
123 | |
124 | sub DESTROY { } |
125 | |
126 | sub AUTOLOAD { |
127 | my ($meth) = (our $AUTOLOAD =~ /([^:]+)$/); |
128 | Moo::HandleMoose::inject_real_metaclass_for((shift)->{name})->$meth(@_) |
129 | } |
130 | sub can { |
131 | Moo::HandleMoose::inject_real_metaclass_for((shift)->{name})->can(@_) |
132 | } |
133 | sub isa { |
134 | Moo::HandleMoose::inject_real_metaclass_for((shift)->{name})->isa(@_) |
135 | } |
136 | } |
137 | |
138 | 1; |