use Scalar::Util 'weaken', 'blessed';
-our $VERSION = '0.03';
+our $VERSION = '0.04';
our $AUTHORITY = 'cpan:STEVAN';
sub meta {
sub is_valid_slot {
my ($self, $slot_name) = @_;
- exists $self->{'@!slots'}->{$slot_name} ? 1 : 0;
+ exists $self->{'@!slots'}->{$slot_name};
}
# operations on created instances
sub get_slot_value {
my ($self, $instance, $slot_name) = @_;
- $self->is_slot_initialized($instance, $slot_name) ? $instance->{$slot_name} : undef;
+ $instance->{$slot_name};
}
sub set_slot_value {
sub is_slot_initialized {
my ($self, $instance, $slot_name, $value) = @_;
- exists $instance->{$slot_name} ? 1 : 0;
+ exists $instance->{$slot_name};
}
sub weaken_slot_value {
bless $instance, $metaclass->name;
}
-sub get_all_slot_values {
- my ($self, $instance) = @_;
- my $class = $self->associated_metaclass;
- my %map;
-
- for my $attr ($class->compute_all_applicable_attributes) {
- my $name = $attr->name;
- $map{$name} = $self->get_slot_value($instance, $name)
- if $self->is_slot_initialized($instance, $name);
- }
-
- return \%map;
-}
-
# inlinable operation snippets
sub is_inlinable { 1 }
sub inline_get_slot_value {
my ($self, $instance, $slot_name) = @_;
- 'exists ' . $self->inline_slot_access($instance, $slot_name) .
- ' ? ' . $self->inline_slot_access($instance, $slot_name) . ' : undef'
+ $self->inline_slot_access($instance, $slot_name);
}
sub inline_set_slot_value {
}
sub inline_is_slot_initialized {
my ($self, $instance, $slot_name) = @_;
- "exists " . $self->inline_slot_access($instance, $slot_name) . " ? 1 : 0";
+ "exists " . $self->inline_slot_access($instance, $slot_name);
}
sub inline_weaken_slot_value {
=head1 SYNOPSIS
- # for the most part, this protocol is internal
- # and not for public usage, but this how one
- # might use it
-
- package Foo;
-
- use strict;
- use warnings;
- use metaclass (
- ':instance_metaclass' => 'ArrayBasedStorage::Instance',
- );
-
- # now Foo->new produces blessed ARRAY ref based objects
+ # This API is largely internal
+ # you shouldn't need it unless you are writing meta attributes or meta
+ # instances
=head1 DESCRIPTION
-This is a sub-protocol which governs instance creation
-and access to the slots of the instance structure.
+The meta instance is used by attributes for low level storage.
+
+Using this API generally violates attribute encapsulation and is not
+reccomended, instead look at L<Class::MOP::Attribute/get_value>,
+L<Class::MOP::Attribute/set_value> for the reccomended way to fiddle with
+attribute values in a generic way, independant of how/whether accessors have
+been defined. Accessors can be found using L<Class::MOP::Class/get_attribute>.
This may seem like over-abstraction, but by abstracting
this process into a sub-protocol we make it possible to
=item B<set_slot_value ($instance_structure, $slot_name, $value)>
-=item B<get_all_slot_values ($instance_structure)>
-
=item B<initialize_slot ($instance_structure, $slot_name)>
=item B<deinitialize_slot ($instance_structure, $slot_name)>