SecBSD's official ports repository

devel/p5-Class-Virtual/Makefile

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+COMMENT=	base class for virtual base classes
+
+MODULES=	cpan
+PKG_ARCH=	*
+DISTNAME =	Class-Virtual-0.08
+CATEGORIES=	devel
+REVISION =	0
+
+BUILD_DEPENDS=	${RUN_DEPENDS}
+RUN_DEPENDS=	devel/p5-Class-Data-Inheritable \
+		devel/p5-Carp-Assert \
+		devel/p5-Class-ISA
+
+# perl
+PERMIT_PACKAGE=	Yes
+
+.include <bsd.port.mk>

devel/p5-Class-Virtual/distinfo

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+SHA256 (Class-Virtual-0.08.tar.gz) = xkmbQtO05cZIil6C+8KGmObJhgFlBy3d+mdJNVqc+7I=
+SIZE (Class-Virtual-0.08.tar.gz) = 6864

devel/p5-Class-Virtual/pkg/DESCR

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+This is a base class for implementing virtual base classes (what
+some people call an abstract class). Kinda kooky. It allows you to
+explicitly declare what methods are virtual and that must be
+implemented by subclasses. This might seem silly, since your program
+will halt and catch fire when an unimplemented virtual method is
+hit anyway, but there's some benefits.
+
+The error message is more informative. Instead of the usual "Can't
+locate object method" error, you'll get one explaining that a virtual
+method was left unimplemented.
+
+Subclass authors can explicitly check to make sure they've implemented
+all the necessary virtual methods. When used as part of a regression
+test, it will shield against the virtual method requirements changing
+out from under the subclass.
+
+Finally, subclass authors can get an explicit list of everything
+they're expected to implement.
+
+Doesn't hurt and it doesn't slow you down.

devel/p5-Class-Virtual/pkg/PLIST

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+${P5SITE}/Class/Virtual.pm
+${P5SITE}/Class/Virtually/
+${P5SITE}/Class/Virtually/Abstract.pm
+@man man/man3p/Class::Virtual.3p
+@man man/man3p/Class::Virtually::Abstract.3p