Initial Commit
This commit is contained in:
Riley Schneider
228
database/perl/vendor/lib/Moo/HandleMoose.pm
vendored
Normal file
228
database/perl/vendor/lib/Moo/HandleMoose.pm
vendored
Normal file
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package Moo::HandleMoose;
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use Moo::_strictures;
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use Moo::_Utils qw(_getstash);
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use Sub::Quote qw(quotify);
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use Carp qw(croak);
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our %TYPE_MAP;
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our $SETUP_DONE;
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sub import { return if $SETUP_DONE; inject_all(); $SETUP_DONE = 1; }
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sub inject_all {
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croak "Can't inflate Moose metaclass with Moo::sification disabled"
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if $Moo::sification::disabled;
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require Class::MOP;
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inject_fake_metaclass_for($_)
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for grep $_ ne 'Moo::Object', keys %Moo::MAKERS;
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inject_fake_metaclass_for($_) for keys %Moo::Role::INFO;
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require Moose::Meta::Method::Constructor;
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@Moo::HandleMoose::FakeConstructor::ISA = 'Moose::Meta::Method::Constructor';
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@Moo::HandleMoose::FakeMeta::ISA = 'Moose::Meta::Method::Meta';
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}
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sub maybe_reinject_fake_metaclass_for {
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my ($name) = @_;
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our %DID_INJECT;
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if (delete $DID_INJECT{$name}) {
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unless ($Moo::Role::INFO{$name}) {
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Moo->_constructor_maker_for($name)->install_delayed;
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}
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inject_fake_metaclass_for($name);
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}
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}
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sub inject_fake_metaclass_for {
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my ($name) = @_;
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require Class::MOP;
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require Moo::HandleMoose::FakeMetaClass;
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Class::MOP::store_metaclass_by_name(
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$name, bless({ name => $name }, 'Moo::HandleMoose::FakeMetaClass')
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);
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require Moose::Util::TypeConstraints;
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if ($Moo::Role::INFO{$name}) {
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Moose::Util::TypeConstraints::find_or_create_does_type_constraint($name);
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} else {
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Moose::Util::TypeConstraints::find_or_create_isa_type_constraint($name);
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}
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}
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{
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package Moo::HandleMoose::FakeConstructor;
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sub _uninlined_body { \&Moose::Object::new }
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}
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sub inject_real_metaclass_for {
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my ($name) = @_;
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our %DID_INJECT;
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return Class::MOP::get_metaclass_by_name($name) if $DID_INJECT{$name};
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require Moose; require Moo; require Moo::Role; require Scalar::Util;
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require Sub::Defer;
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Class::MOP::remove_metaclass_by_name($name);
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my ($am_role, $am_class, $meta, $attr_specs, $attr_order) = do {
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if (my $info = $Moo::Role::INFO{$name}) {
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my @attr_info = @{$info->{attributes}||[]};
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(1, 0, Moose::Meta::Role->initialize($name),
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{ @attr_info },
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[ @attr_info[grep !($_ % 2), 0..$#attr_info] ]
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)
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} elsif ( my $cmaker = Moo->_constructor_maker_for($name) ) {
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my $specs = $cmaker->all_attribute_specs;
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(0, 1, Moose::Meta::Class->initialize($name), $specs,
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[ sort { $specs->{$a}{index} <=> $specs->{$b}{index} } keys %$specs ]
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);
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} else {
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# This codepath is used if $name does not exist in $Moo::MAKERS
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(0, 0, Moose::Meta::Class->initialize($name), {}, [] )
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}
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};
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{
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local $DID_INJECT{$name} = 1;
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foreach my $spec (values %$attr_specs) {
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if (my $inflators = delete $spec->{moosify}) {
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$_->($spec) for @$inflators;
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}
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}
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my %methods
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= %{($am_role ? 'Moo::Role' : 'Moo')->_concrete_methods_of($name)};
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# if stuff gets added afterwards, _maybe_reset_handlemoose should
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# trigger the recreation of the metaclass but we need to ensure the
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# Moo::Role cache is cleared so we don't confuse Moo itself.
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if (my $info = $Moo::Role::INFO{$name}) {
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delete $info->{methods};
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}
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# needed to ensure the method body is stable and get things named
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$methods{$_} = Sub::Defer::undefer_sub($methods{$_})
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for
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grep $_ ne 'new',
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keys %methods;
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my @attrs;
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{
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# This local is completely not required for roles but harmless
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local @{_getstash($name)}{keys %methods};
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my %seen_name;
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foreach my $attr_name (@$attr_order) {
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$seen_name{$attr_name} = 1;
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my %spec = %{$attr_specs->{$attr_name}};
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my %spec_map = (
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map { $_->name => $_->init_arg||$_->name }
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(
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(grep { $_->has_init_arg }
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$meta->attribute_metaclass->meta->get_all_attributes),
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grep { exists($_->{init_arg}) ? defined($_->init_arg) : 1 }
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map {
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my $meta = Moose::Util::resolve_metatrait_alias('Attribute', $_)
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->meta;
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map $meta->get_attribute($_), $meta->get_attribute_list
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} @{$spec{traits}||[]}
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)
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);
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# have to hard code this because Moose's role meta-model is lacking
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$spec_map{traits} ||= 'traits';
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$spec{is} = 'ro' if $spec{is} eq 'lazy' or $spec{is} eq 'rwp';
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my $coerce = $spec{coerce};
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if (my $isa = $spec{isa}) {
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my $tc = $spec{isa} = do {
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if (my $mapped = $TYPE_MAP{$isa}) {
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my $type = $mapped->();
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unless ( Scalar::Util::blessed($type)
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&& $type->isa("Moose::Meta::TypeConstraint") ) {
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croak "error inflating attribute '$attr_name' for package '$name': "
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."\$TYPE_MAP{$isa} did not return a valid type constraint'";
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}
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$coerce ? $type->create_child_type(name => $type->name) : $type;
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} else {
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Moose::Meta::TypeConstraint->new(
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constraint => sub { eval { &$isa; 1 } }
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);
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}
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};
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if ($coerce) {
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$tc->coercion(Moose::Meta::TypeCoercion->new)
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->_compiled_type_coercion($coerce);
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$spec{coerce} = 1;
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}
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} elsif ($coerce) {
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my $attr = quotify($attr_name);
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my $tc = Moose::Meta::TypeConstraint->new(
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constraint => sub { die "This is not going to work" },
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inlined => sub {
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'my $r = $_[42]{'.$attr.'}; $_[42]{'.$attr.'} = 1; $r'
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},
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);
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$tc->coercion(Moose::Meta::TypeCoercion->new)
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->_compiled_type_coercion($coerce);
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$spec{isa} = $tc;
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$spec{coerce} = 1;
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}
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%spec =
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map { $spec_map{$_} => $spec{$_} }
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grep { exists $spec_map{$_} }
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keys %spec;
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push @attrs, $meta->add_attribute($attr_name => %spec);
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}
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foreach my $mouse (do { our %MOUSE; @{$MOUSE{$name}||[]} }) {
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foreach my $attr ($mouse->get_all_attributes) {
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my %spec = %{$attr};
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delete @spec{qw(
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associated_class associated_methods __METACLASS__
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provides curries
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)};
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my $attr_name = delete $spec{name};
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next if $seen_name{$attr_name}++;
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push @attrs, $meta->add_attribute($attr_name => %spec);
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}
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}
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}
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foreach my $meth_name (keys %methods) {
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my $meth_code = $methods{$meth_name};
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$meta->add_method($meth_name, $meth_code);
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}
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if ($am_role) {
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my $info = $Moo::Role::INFO{$name};
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$meta->add_required_methods(@{$info->{requires}});
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foreach my $modifier (@{$info->{modifiers}}) {
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my ($type, @args) = @$modifier;
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my $code = pop @args;
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$meta->${\"add_${type}_method_modifier"}($_, $code) for @args;
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}
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}
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elsif ($am_class) {
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foreach my $attr (@attrs) {
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foreach my $method (@{$attr->associated_methods}) {
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$method->{body} = $name->can($method->name);
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}
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}
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bless(
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$meta->find_method_by_name('new'),
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'Moo::HandleMoose::FakeConstructor',
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);
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my $meta_meth;
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if (
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$meta_meth = $meta->find_method_by_name('meta')
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and $meta_meth->body == \&Moo::Object::meta
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) {
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bless($meta_meth, 'Moo::HandleMoose::FakeMeta');
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}
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# a combination of Moo and Moose may bypass a Moo constructor but still
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# use a Moo DEMOLISHALL. We need to make sure this is loaded before
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# global destruction.
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require Method::Generate::DemolishAll;
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}
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$meta->add_role(Class::MOP::class_of($_))
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for grep !/\|/ && $_ ne $name, # reject Foo|Bar and same-role-as-self
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keys %{$Moo::Role::APPLIED_TO{$name}}
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}
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$DID_INJECT{$name} = 1;
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$meta;
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}
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1;
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