NAME¶
Declare::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.
