1Specio::Constraint::ParUasmeerteCroinztarbilbeu(t3e)d PeSrplecDiooc:u:mCeonntsattriaoinnt::Parameterizable(3)
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NAME

6       Specio::Constraint::Parameterizable - A class which represents
7       parameterizable constraints
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VERSION

10       version 0.44
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SYNOPSIS

13           my $arrayref = t('ArrayRef');
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15           my $arrayref_of_int = $arrayref->parameterize( of => t('Int') );
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DESCRIPTION

18       This class implements the API for parameterizable types like "ArrayRef"
19       and "Maybe".
20

API

22       This class implements the same API as Specio::Constraint::Simple, with
23       a few additions.
24
25   Specio::Constraint::Parameterizable->new(...)
26       This class's constructor accepts two additional parameters:
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28       ·   parameterized_constraint_generator
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30           This is a subroutine that generates a new constraint subroutine
31           when the type is parameterized.
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33           It will be called as a method on the type and will be passed a
34           single argument, the type object for the type parameter.
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36           This parameter is mutually exclusive with the
37           "parameterized_inline_generator" parameter.
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39       ·   parameterized_inline_generator
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41           This is a subroutine that generates a new inline generator
42           subroutine when the type is parameterized.
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44           It will be called as a method on the
45           Specio::Constraint::Parameterized object when that object needs to
46           generate an inline constraint. It will receive the type parameter
47           as the first argument and the variable name as a string as the
48           second.
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50           This probably seems fairly confusing, so looking at the examples in
51           the Specio::Library::Builtins code may be helpful.
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53           This parameter is mutually exclusive with the
54           "parameterized_constraint_generator" parameter.
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56   $type->parameterize(...)
57       This method takes two arguments. The "of" argument should be an object
58       which does the Specio::Constraint::Role::Interface role, and is
59       required.
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61       The other argument, "declared_at", is optional. If it is not given,
62       then a new Specio::DeclaredAt object is creating using a call stack
63       depth of 1.
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65       This method returns a new Specio::Constraint::Parameterized object.
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SUPPORT

68       Bugs may be submitted at
69       <https://github.com/houseabsolute/Specio/issues>.
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71       I am also usually active on IRC as 'autarch' on "irc://irc.perl.org".
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SOURCE

74       The source code repository for Specio can be found at
75       <https://github.com/houseabsolute/Specio>.
76

AUTHOR

78       Dave Rolsky <autarch@urth.org>
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81       This software is Copyright (c) 2012 - 2019 by Dave Rolsky.
82
83       This is free software, licensed under:
84
85         The Artistic License 2.0 (GPL Compatible)
86
87       The full text of the license can be found in the LICENSE file included
88       with this distribution.
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92perl v5.30.0                      2019-08S-p1e5cio::Constraint::Parameterizable(3)
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