Class::Declare::Attributes 0.04

Class::Declare::Attributes is a Perl module with Class::Declare method types using Perl attributes.

SYNOPSIS

package My::Class;

use 5.006;
use strict;
use warnings;

use base qw( Class::Declare::Attributes );

# declare the class/instance attributes
__PACKAGE__->declare( ... );

#
# declare class/static/restricted/etc methods of this package
#

sub my_abstract : abstract { ... }
sub my_class : class { ... }
sub my_static : static { ... }
sub my_restricted : restricted { ... }
sub my_public : public { ... }
sub my_private : private { ... }
sub my_protected : protected { ... }

Class::Declare::Attributes extends Class::Declare by adding support for Perl attributes for specifying class method types. This extension was inspired by Damian Conways Attribute::Handlers module, and Tatsuhiko Miyagawas Attribute::Protected module. The original implementation used Attribute::Handlers, but now simply refers to attributes.

The addition of Perl attribute support (not to be confused with object attributes, which are entirely different, and also supported by Class::Declare) greatly simplifies the specification of Class::Declare-derived class and instance methods. This should aid in the porting of existing code (Perl, Java and C++) to a Class::Declare framework, as well as simplify the development of new modules.

With the addition of Perl attributes, Class::Declare methods can now be written as

sub method : public
{
my $self = shift;
...
}
instead of
sub method
{
my $self = __PACKAGE__->public( shift );
...
}