1Declare::Constraints::SUismeprleC:o:nLtirbirbauDrteyec:dl:aOPrOee(r:3l:)CDooncsutmreanitnattsi:o:nSimple::Library::OO(3)
2
3
4

NAME

6       Declare::Constraints::Simple::Library::OO - OO Constraints
7

SYNOPSIS

9         # accept objects or classes
10         my $object_or_class = Or( IsObject, IsClass );
11
12         # valid on objects with all methods
13         my $proper_object = And( IsObject,
14                                  HasMethods( qw(foo bar) ));
15
16         # validate against date objects
17         my $is_date_object = IsA('DateTime');
18

DESCRIPTION

20       This library contains the constraints for validating parameters in an
21       object oriented manner.
22

CONSTRAINTS

24   HasMethods(@methods)
25       Returns true if the value is an object or class that "can" all the
26       specified @methods.
27
28       The stack or path part of "HasMethods" looks like "HasMethods[$method]"
29       where $method is the first found missing method.
30
31   IsA(@classes)
32       Is true if the passed object or class is a subclass of one of the
33       classes mentioned in @classes.
34
35   IsClass()
36       Valid if value is a loaded class.
37
38   IsObject()
39       True if the value is blessed.
40

SEE ALSO

42       Declare::Constraints::Simple, Declare::Constraints::Simple::Library
43

AUTHOR

45       Robert 'phaylon' Sedlacek "<phaylon@dunkelheit.at>"
46

48       This module is free software, you can redistribute it and/or modify it
49       under the same terms as perl itself.
50
51
52
53perl v5.34.0                      2D0e2c1l-a0r7e-:2:2Constraints::Simple::Library::OO(3)
Impressum