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 version 2.2206
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12 This class represents type constraints based on an enumerated list of
13 required methods.
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16 "Moose::Meta::TypeConstraint::DuckType" is a subclass of
17 Moose::Meta::TypeConstraint.
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20 Moose::Meta::TypeConstraint::DuckType->new(%options)
21 This creates a new duck type constraint based on the given %options.
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23 It takes the same options as its parent, with several exceptions.
24 First, it requires an additional option, "methods". This should be an
25 array reference containing a list of required method names. Second, it
26 automatically sets the parent to the "Object" type.
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28 Finally, it ignores any provided "constraint" option. The constraint is
29 generated automatically based on the provided "methods".
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31 $constraint->methods
32 Returns the array reference of required methods provided to the
33 constructor.
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35 $constraint->create_child_type
36 This returns a new Moose::Meta::TypeConstraint object with the type as
37 its parent.
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39 Note that it does not return a "Moose::Meta::TypeConstraint::DuckType"
40 object!
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43 See "BUGS" in Moose for details on reporting bugs.
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46 • Stevan Little <stevan@cpan.org>
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48 • Dave Rolsky <autarch@urth.org>
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50 • Jesse Luehrs <doy@cpan.org>
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52 • Shawn M Moore <sartak@cpan.org>
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54 • יובל קוג'מן (Yuval Kogman) <nothingmuch@woobling.org>
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56 • Karen Etheridge <ether@cpan.org>
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58 • Florian Ragwitz <rafl@debian.org>
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60 • Hans Dieter Pearcey <hdp@cpan.org>
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62 • Chris Prather <chris@prather.org>
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64 • Matt S Trout <mstrout@cpan.org>
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67 This software is copyright (c) 2006 by Infinity Interactive, Inc.
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69 This is free software; you can redistribute it and/or modify it under
70 the same terms as the Perl 5 programming language system itself.
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74perl v5.38.0 2023-M0o7o-s2e3::Meta::TypeConstraint::DuckType(3)