Declare::Constraints::UserlContribDeclare::Constraints::Simple::Library::OO(3)NAMEDeclare::Constraints::Simple::Library::OO - OO Constraints
SYNOPSIS
# accept objects or classes
my $object_or_class = Or( IsObject, IsClass );
# valid on objects with all methods
my $proper_object = And( IsObject,
HasMethods( qw(foo bar) ));
# validate against date objects
my $is_date_object = IsA('DateTime');
DESCRIPTION
This library contains the constraints for validating parameters in an
object oriented manner.
CONSTRAINTS
HasMethods(@methods)
Returns true if the value is an object or class that "can" all the
specified @methods.
The stack or path part of "HasMethods" looks like "HasMethods[$method]"
where $method is the first found missing method.
IsA(@classes)
Is true if the passed object or class is a subclass of one of the
classes mentioned in @classes.
IsClass()
Valid if value is a loaded class.
IsObject()
True if the value is blessed.
SEE ALSO
Declare::Constraints::Simple, Declare::Constraints::Simple::Library
AUTHOR
Robert 'phaylon' Sedlacek "<phaylon@dunkelheit.at>"
LICENSE AND COPYRIGHT
This module is free software, you can redistribute it and/or modify it
under the same terms as perl itself.
perl v5.14.1Declare::Constraints::Simple::Library::OO(3)