return $instance;
}
+sub _inline_new_object {
+ my $self = shift;
+
+ my $idx = 0;
+ return (
+ 'my $class = shift;',
+ 'return Class::MOP::Class->initialize($class)->new_object(@_)',
+ 'if $class ne \'' . $self->name . '\';',
+ 'my $params = @_ == 1 ? $_[0] : {@_};',
+ 'my $instance = ' . $self->_inline_create_instance('$class') . ';',
+ (map { $self->_inline_slot_initializer($_, $idx++) }
+ $self->get_all_attributes),
+ $self->_inline_preserve_weak_metaclasses,
+ 'return $instance',
+ );
+}
+
+sub _inline_create_instance {
+ my $self = shift;
+
+ return $self->get_meta_instance->inline_create_instance(@_);
+}
+
+sub _inline_slot_initializer {
+ my $self = shift;
+ my ($attr, $idx) = @_;
+
+ my $default = $self->_inline_default_value($attr, $idx);
+
+ if (defined(my $init_arg = $attr->init_arg)) {
+ my @source = (
+ 'if (exists $params->{\'' . $init_arg . '\'}) {',
+ $attr->_inline_set_value(
+ '$instance', '$params->{\'' . $init_arg . '\'}'
+ ),
+ '}',
+ );
+ if (defined $default) {
+ push @source, (
+ 'else {',
+ $attr->_inline_set_value('$instance', $default),
+ '}',
+ );
+ }
+ return @source;
+ }
+ elsif (defined $default) {
+ return $attr->_inline_set_value('$instance', $default);
+ }
+ else {
+ return ();
+ }
+}
+
+sub _inline_default_value {
+ my $self = shift;
+ my ($attr, $index) = @_;
+
+ if ($attr->has_default) {
+ # NOTE:
+ # default values can either be CODE refs
+ # in which case we need to call them. Or
+ # they can be scalars (strings/numbers)
+ # in which case we can just deal with them
+ # in the code we eval.
+ if ($attr->is_default_a_coderef) {
+ return '$defaults->[' . $index . ']->($instance)';
+ }
+ else {
+ return '$defaults->[' . $index . ']';
+ }
+ }
+ elsif ($attr->has_builder) {
+ return '$instance->' . $attr->builder;
+ }
+ else {
+ return;
+ }
+}
+
+sub _inline_preserve_weak_metaclasses {
+ my $self = shift;
+ if (Class::MOP::metaclass_is_weak($self->name)) {
+ return (
+ $self->_inline_set_mop_slot(
+ '$instance', 'Class::MOP::class_of($class)'
+ ) . ';'
+ );
+ }
+ else {
+ return ();
+ }
+}
+
sub get_meta_instance {
my $self = shift;
return $instance;
}
-sub inline_create_instance {
- my $self = shift;
-
- return $self->get_meta_instance->inline_create_instance(@_);
-}
-
-sub inline_rebless_instance {
+sub _inline_rebless_instance {
my $self = shift;
return $self->get_meta_instance->inline_rebless_instance_structure(@_);
Returns an instance of the C<instance_metaclass> to be used in the
construction of a new instance of the class.
-=item B<< $metaclass->inline_create_instance($class_var) >>
-
-=item B<< $metaclass->inline_rebless_instance($instance_var, $class_var) >>
-
-These methods takes variable names, and use them to create an inline snippet
-of code that will create a new instance of the class.
-
=back
=head2 Informational predicates
$self->{'body'} = $self->$method_name;
}
-sub _generate_constructor_method {
- return sub { Class::MOP::Class->initialize(shift)->new_object(@_) }
-}
-
sub _eval_environment {
my $self = shift;
my $defaults = [map { $_->default } @{ $self->_attributes }];
};
}
+sub _generate_constructor_method {
+ return sub { Class::MOP::Class->initialize(shift)->new_object(@_) }
+}
+
sub _generate_constructor_method_inline {
my $self = shift;
my $meta = $self->associated_metaclass;
- my $idx = 0;
my @source = (
'sub {',
- 'my $class = shift;',
- 'return Class::MOP::Class->initialize($class)->new_object(@_)',
- 'if $class ne \'' . $meta->name . '\';',
- 'my $params = @_ == 1 ? $_[0] : {@_};',
- 'my $instance = ' . $meta->inline_create_instance('$class') . ';',
- (map { $self->_generate_slot_initializer($_, $idx++) }
- @{ $self->_attributes }),
- $self->_preserve_weak_metaclasses,
- 'return $instance',
+ $meta->_inline_new_object,
'}',
);
return $code;
}
-sub _generate_slot_initializer {
- my $self = shift;
- my ($attr, $idx) = @_;
-
- my $default = $self->_generate_default_value($attr, $idx);
-
- if (defined(my $init_arg = $attr->init_arg)) {
- my @source = (
- 'if (exists $params->{\'' . $init_arg . '\'}) {',
- $attr->_inline_set_value(
- '$instance', '$params->{\'' . $init_arg . '\'}'
- ),
- '}',
- );
- if (defined $default) {
- push @source, (
- 'else {',
- $attr->_inline_set_value('$instance', $default),
- '}',
- );
- }
- return @source;
- }
- elsif (defined $default) {
- return $attr->_inline_set_value('$instance', $default);
- }
- else {
- return ();
- }
-}
-
-sub _preserve_weak_metaclasses {
- my $self = shift;
- my $meta = $self->associated_metaclass;
- if (Class::MOP::metaclass_is_weak($meta->name)) {
- return (
- $meta->_inline_set_mop_slot(
- '$instance', 'Class::MOP::class_of($class)'
- ) . ';'
- );
- }
- else {
- return ();
- }
-}
-
-sub _generate_default_value {
- my $self = shift;
- my ($attr, $index) = @_;
-
- if ($attr->has_default) {
- # NOTE:
- # default values can either be CODE refs
- # in which case we need to call them. Or
- # they can be scalars (strings/numbers)
- # in which case we can just deal with them
- # in the code we eval.
- if ($attr->is_default_a_coderef) {
- return '$defaults->[' . $index . ']->($instance)';
- }
- else {
- return '$defaults->[' . $index . ']';
- }
- }
- elsif ($attr->has_builder) {
- return '$instance->' . $attr->builder;
- }
- else {
- return;
- }
-}
-
1;
__END__
create_anon_class is_anon_class
instance_metaclass get_meta_instance
- inline_create_instance
- inline_rebless_instance
+ _inline_create_instance
+ _inline_rebless_instance
_inline_get_mop_slot _inline_set_mop_slot _inline_clear_mop_slot
create_meta_instance _create_meta_instance
new_object clone_object
+ _inline_new_object _inline_default_value _inline_preserve_weak_metaclasses
+ _inline_slot_initializer
construct_instance _construct_instance
construct_class_instance _construct_class_instance
clone_instance _clone_instance