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lib/Adapter/Async/Model.pm  view on Meta::CPAN

	my ($class, $def, %args) = @_;
	my $pkg = caller;
	# No definition? Then we're probably just doing a module-load test, nothing
	# for us to do here
	return unless $def;

	$defined{$pkg} = 1;
	$args{defer_methods} = 1 unless exists $args{defer_methods};
	($args{model_base} = $pkg) =~ s/Model\K.*// unless exists $args{model_base};

	my $type_expand = sub {
		my ($type) = @_;
		return unless defined $type;
		$type = $args{model_base} . $type if substr($type, 0, 2) eq '::';
		$type
	};

	my %loader;

	my @methods;
	for my $k (keys %$def) {
		my $details = $def->{$k};
		$details = { type => $details } unless ref $details;
		my $code;
		my %collection_class_for = (
			UnorderedMap => 'Adapter::Async::UnorderedMap::Hash',
			OrderedList  => 'Adapter::Async::OrderedList::Array',
		);
		if(defined(my $from = $details->{from})) {
			$log->tracef("Should apply field %s from %s for %s", $k, $from, $pkg);
			++$loader{$_} for grep /::/, map $type_expand->($_), @{$details}{qw(type)};
		} else {
			no strict 'refs';
			no warnings 'once';
			push @{$pkg . '::attrs'}, $k unless $details->{collection}
		}

		if(my $type = $details->{collection}) {
			my $collection_class = $collection_class_for{$type} // die "unknown collection $type";
			++$loader{$collection_class};
			$log->tracef("%s->%s collection: %s", $pkg, $k, $type);
			++$loader{$_} for grep /::/, map $type_expand->($_), @{$details}{qw(key item)};
			$code = sub {
				my $self = shift;
				die "no args expected" if @_;
				$self->{$k} //= $collection_class->new;
			}
		} else {
			my $type = $type_expand->($details->{type} // die "unknown type in package $pkg - " . Dumper($def));
			++$loader{$type} if $type =~ /::/;

			$log->tracef("%s->%s scalar %s", $pkg, $k, $type);
			$code = sub {
				my ($self) = shift;
				return $self->{$k} unless @_;
				$self->{$k} = shift;
				return $self
			}
		}