devel::innerpackage(3pm) [suse man page]

Devel::InnerPackage(3pm)				 Perl Programmers Reference Guide				  Devel::InnerPackage(3pm)

NAME

       Devel::InnerPackage - find all the inner packages of a package

SYNOPSIS

	   use Foo::Bar;
	   use Devel::InnerPackage qw(list_packages);

	   my @inner_packages = list_packages('Foo::Bar');

DESCRIPTION

       Given a file like this

	   package Foo::Bar;

	   sub foo {}

	   package Foo::Bar::Quux;

	   sub quux {}

	   package Foo::Bar::Quirka;

	   sub quirka {}

	   1;

       then

	   list_packages('Foo::Bar');

       will return

	   Foo::Bar::Quux
	   Foo::Bar::Quirka

METHODS

   list_packages <package name>
       Return a list of all inner packages of that package.

AUTHOR

       Simon Wistow <simon@thegestalt.org>

COPYING

       Copyright, 2005 Simon Wistow

       Distributed under the same terms as Perl itself.

BUGS

       None known.

perl v5.12.1							    2010-04-26						  Devel::InnerPackage(3pm)

base(3pm)						 Perl Programmers Reference Guide						 base(3pm)

NAME

       base - Establish an ISA relationship with base classes at compile time

SYNOPSIS

	   package Baz;
	   use base qw(Foo Bar);

DESCRIPTION

       Unless you are using the "fields" pragma, consider this module discouraged in favor of the lighter-weight "parent".

       Allows you to both load one or more modules, while setting up inheritance from those modules at the same time.  Roughly similar in effect
       to

	   package Baz;
	   BEGIN {
	       require Foo;
	       require Bar;
	       push @ISA, qw(Foo Bar);
	   }

       When "base" tries to "require" a module, it will not die if it cannot find the module's file, but will die on any other error.  After all
       this, should your base class be empty, containing no symbols, "base" will die. This is useful for inheriting from classes in the same file
       as yourself but where the filename does not match the base module name, like so:

	       # in Bar.pm
	       package Foo;
	       sub exclaim { "I can have such a thing?!" }

	       package Bar;
	       use base "Foo";

       There is no Foo.pm, but because "Foo" defines a symbol (the "exclaim" subroutine), "base" will not die when the "require" fails to load
       Foo.pm.

       "base" will also initialize the fields if one of the base classes has it.  Multiple inheritance of fields is NOT supported, if two or more
       base classes each have inheritable fields the 'base' pragma will croak. See fields for a description of this feature.

       The base class' "import" method is not called.

DIAGNOSTICS

       Base class package "%s" is empty.
	   base.pm was unable to require the base package, because it was not found in your path.

       Class 'Foo' tried to inherit from itself
	   Attempting to inherit from yourself generates a warning.

	       package Foo;
	       use base 'Foo';

HISTORY

       This module was introduced with Perl 5.004_04.

CAVEATS

       Due to the limitations of the implementation, you must use base before you declare any of your own fields.

SEE ALSO

       fields

perl v5.16.3							    2013-03-04								 base(3pm)