1Specio::Constraint::ParUasmeerteCroinztarbilbeu(t3e)d PeSrplecDiooc:u:mCeonntsattriaoinnt::Parameterizable(3)
2
3
4

NAME

6       Specio::Constraint::Parameterizable - A class which represents
7       parameterizable constraints
8

VERSION

10       version 0.48
11

SYNOPSIS

13           my $arrayref = t('ArrayRef');
14
15           my $arrayref_of_int = $arrayref->parameterize( of => t('Int') );
16

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:
27
28       •   parameterized_constraint_generator
29
30           This is a subroutine that generates a new constraint subroutine
31           when the type is parameterized.
32
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.
35
36           This parameter is mutually exclusive with the
37           "parameterized_inline_generator" parameter.
38
39       •   parameterized_inline_generator
40
41           This is a subroutine that generates a new inline generator
42           subroutine when the type is parameterized.
43
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.
49
50           This probably seems fairly confusing, so looking at the examples in
51           the Specio::Library::Builtins code may be helpful.
52
53           This parameter is mutually exclusive with the
54           "parameterized_constraint_generator" parameter.
55
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.
60
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.
64
65       This method returns a new Specio::Constraint::Parameterized object.
66

SUPPORT

68       Bugs may be submitted at
69       <https://github.com/houseabsolute/Specio/issues>.
70

SOURCE

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

AUTHOR

76       Dave Rolsky <autarch@urth.org>
77

79       This software is Copyright (c) 2012 - 2022 by Dave Rolsky.
80
81       This is free software, licensed under:
82
83         The Artistic License 2.0 (GPL Compatible)
84
85       The full text of the license can be found in the LICENSE file included
86       with this distribution.
87
88
89
90perl v5.36.0                      2023-01S-p2e0cio::Constraint::Parameterizable(3)
Impressum