1Moose::Meta::TypeConstrUasienrt:C:oDnutcrkiTbyuptee(d3M)Poeorsle:D:oMceutmae:n:tTaytpieoCnonstraint::DuckType(3)
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6 Moose::Meta::TypeConstraint::DuckType - Type constraint for duck typing
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9 This class represents type constraints based on an enumerated list of
10 required methods.
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13 "Moose::Meta::TypeConstraint::DuckType" is a subclass of
14 Moose::Meta::TypeConstraint.
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17 Moose::Meta::TypeConstraint::DuckType->new(%options)
18 This creates a new duck type constraint based on the given
19 %options.
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21 It takes the same options as its parent, with several exceptions.
22 First, it requires an additional option, "methods". This should be
23 an array reference containing a list of required method names.
24 Second, it automatically sets the parent to the "Object" type.
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26 Finally, it ignores any provided "constraint" option. The
27 constraint is generated automatically based on the provided
28 "methods".
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30 $constraint->methods
31 Returns the array reference of required methods provided to the
32 constructor.
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34 $constraint->create_child_type
35 This returns a new Moose::Meta::TypeConstraint object with the type
36 as its parent.
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38 Note that it does not return a
39 "Moose::Meta::TypeConstraint::DuckType" object!
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42 See "BUGS" in Moose for details on reporting bugs.
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45 Chris Prather <chris@prather.org>
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47 Shawn M Moore <sartak@gmail.com>
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50 Copyright 2006-2010 by Infinity Interactive, Inc.
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52 <http://www.iinteractive.com>
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54 This library is free software; you can redistribute it and/or modify it
55 under the same terms as Perl itself.
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59perl v5.12.2 2010-M0o8o-s2e8::Meta::TypeConstraint::DuckType(3)