1 package Moo::HandleMoose;
11 sub import { return if $SETUP_DONE; inject_all(); $SETUP_DONE = 1; }
15 inject_fake_metaclass_for($_)
16 for grep $_ ne 'Moo::Object', do { no warnings 'once'; keys %Moo::MAKERS };
17 inject_fake_metaclass_for($_) for keys %Moo::Role::INFO;
18 require Moose::Meta::Method::Constructor;
19 @Moo::HandleMoose::FakeConstructor::ISA = 'Moose::Meta::Method::Constructor';
22 sub maybe_reinject_fake_metaclass_for {
25 if (delete $DID_INJECT{$name}) {
26 unless ($Moo::Role::INFO{$name}) {
27 Moo->_constructor_maker_for($name)->install_delayed;
29 inject_fake_metaclass_for($name);
33 sub inject_fake_metaclass_for {
36 require Moo::HandleMoose::FakeMetaClass;
37 Class::MOP::store_metaclass_by_name(
38 $name, bless({ name => $name }, 'Moo::HandleMoose::FakeMetaClass')
40 require Moose::Util::TypeConstraints;
41 if ($Moo::Role::INFO{$name}) {
42 Moose::Util::TypeConstraints::find_or_create_does_type_constraint($name);
44 Moose::Util::TypeConstraints::find_or_create_isa_type_constraint($name);
49 package Moo::HandleMoose::FakeConstructor;
51 sub _uninlined_body { \&Moose::Object::new }
54 sub inject_real_metaclass_for {
57 return Class::MOP::get_metaclass_by_name($name) if $DID_INJECT{$name};
58 require Moose; require Moo; require Moo::Role; require Scalar::Util;
59 Class::MOP::remove_metaclass_by_name($name);
60 my ($am_role, $meta, $attr_specs, $attr_order) = do {
61 if (my $info = $Moo::Role::INFO{$name}) {
62 my @attr_info = @{$info->{attributes}||[]};
63 (1, Moose::Meta::Role->initialize($name),
65 [ @attr_info[grep !($_ % 2), 0..$#attr_info] ]
67 } elsif ( my $cmaker = Moo->_constructor_maker_for($name) ) {
68 my $specs = $cmaker->all_attribute_specs;
69 (0, Moose::Meta::Class->initialize($name), $specs,
70 [ sort { $specs->{$a}{index} <=> $specs->{$b}{index} } keys %$specs ]
73 # This codepath is used if $name does not exist in $Moo::MAKERS
74 (0, Moose::Meta::Class->initialize($name), {}, [] )
78 for my $spec (values %$attr_specs) {
79 if (my $inflators = delete $spec->{moosify}) {
80 $_->($spec) for @$inflators;
84 my %methods = %{Role::Tiny->_concrete_methods_of($name)};
86 # if stuff gets added afterwards, _maybe_reset_handlemoose should
87 # trigger the recreation of the metaclass but we need to ensure the
88 # Role::Tiny cache is cleared so we don't confuse Moo itself.
89 if (my $info = $Role::Tiny::INFO{$name}) {
90 delete $info->{methods};
93 # needed to ensure the method body is stable and get things named
94 Sub::Defer::undefer_sub($_) for grep defined, values %methods;
97 # This local is completely not required for roles but harmless
98 local @{_getstash($name)}{keys %methods};
100 foreach my $name (@$attr_order) {
101 $seen_name{$name} = 1;
102 my %spec = %{$attr_specs->{$name}};
104 map { $_->name => $_->init_arg||$_->name }
106 (grep { $_->has_init_arg }
107 $meta->attribute_metaclass->meta->get_all_attributes),
108 grep { exists($_->{init_arg}) ? defined($_->init_arg) : 1 }
110 my $meta = Moose::Util::resolve_metatrait_alias('Attribute', $_)
112 map $meta->get_attribute($_), $meta->get_attribute_list
113 } @{$spec{traits}||[]}
116 # have to hard code this because Moose's role meta-model is lacking
117 $spec_map{traits} ||= 'traits';
119 $spec{is} = 'ro' if $spec{is} eq 'lazy' or $spec{is} eq 'rwp';
120 my $coerce = $spec{coerce};
121 if (my $isa = $spec{isa}) {
122 my $tc = $spec{isa} = do {
123 if (my $mapped = $TYPE_MAP{$isa}) {
124 my $type = $mapped->();
125 Scalar::Util::blessed($type) && $type->isa("Moose::Meta::TypeConstraint")
126 or die "error inflating attribute '$name' for package '$_[0]': \$TYPE_MAP{$isa} did not return a valid type constraint'";
127 $coerce ? $type->create_child_type(name => $type->name) : $type;
129 Moose::Meta::TypeConstraint->new(
130 constraint => sub { eval { &$isa; 1 } }
135 $tc->coercion(Moose::Meta::TypeCoercion->new)
136 ->_compiled_type_coercion($coerce);
140 my $attr = perlstring($name);
141 my $tc = Moose::Meta::TypeConstraint->new(
142 constraint => sub { die "This is not going to work" },
144 'my $r = $_[42]{'.$attr.'}; $_[42]{'.$attr.'} = 1; $r'
147 $tc->coercion(Moose::Meta::TypeCoercion->new)
148 ->_compiled_type_coercion($coerce);
153 map { $spec_map{$_} => $spec{$_} }
154 grep { exists $spec_map{$_} }
156 push @attrs, $meta->add_attribute($name => %spec);
158 foreach my $mouse (do { our %MOUSE; @{$MOUSE{$name}||[]} }) {
159 foreach my $attr ($mouse->get_all_attributes) {
162 associated_class associated_methods __METACLASS__
165 my $name = delete $spec{name};
166 next if $seen_name{$name}++;
167 push @attrs, $meta->add_attribute($name => %spec);
171 for my $meth_name (keys %methods) {
172 my $meth_code = $methods{$meth_name};
173 $meta->add_method($meth_name, $meth_code) if $meth_code;
177 my $info = $Moo::Role::INFO{$name};
178 $meta->add_required_methods(@{$info->{requires}});
179 foreach my $modifier (@{$info->{modifiers}}) {
180 my ($type, @args) = @$modifier;
181 my $code = pop @args;
182 $meta->${\"add_${type}_method_modifier"}($_, $code) for @args;
185 foreach my $attr (@attrs) {
186 foreach my $method (@{$attr->associated_methods}) {
187 $method->{body} = $name->can($method->name);
191 $meta->find_method_by_name('new'),
192 'Moo::HandleMoose::FakeConstructor',
194 # a combination of Moo and Moose may bypass a Moo constructor but still
195 # use a Moo DEMOLISHALL. We need to make sure this is loaded before
196 # global destruction.
197 require Method::Generate::DemolishAll;
199 $meta->add_role(Class::MOP::class_of($_))
200 for grep !/\|/ && $_ ne $name, # reject Foo|Bar and same-role-as-self
201 do { no warnings 'once'; keys %{$Role::Tiny::APPLIED_TO{$name}} };
202 $DID_INJECT{$name} = 1;