NAME

       Specio::Constraint::Parameterizable - A class which represents parameterizable constraints

VERSION

       version 0.42

SYNOPSIS

           my $arrayref = t('ArrayRef');

           my $arrayref_of_int = $arrayref->parameterize( of => t('Int') );

DESCRIPTION

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

API

       This class implements the same API as Specio::Constraint::Simple, with a few additions.

   Specio::Constraint::Parameterizable->new(...)
       This class's constructor accepts two additional parameters:

       •   parameterized_constraint_generator

           This is a subroutine that generates a new constraint subroutine when the type is parameterized.

           It  will  be called as a method on the type and will be passed a single argument, the type object for
           the type parameter.

           This parameter is mutually exclusive with the "parameterized_inline_generator" parameter.

       •   parameterized_inline_generator

           This is a subroutine that generates a new inline generator subroutine when the type is parameterized.

           It will be called as a method on the Specio::Constraint::Parameterized object when that object  needs
           to  generate  an  inline constraint. It will receive the type parameter as the first argument and the
           variable name as a string as the second.

           This probably seems fairly confusing, so looking at the  examples  in  the  Specio::Library::Builtins
           code may be helpful.

           This parameter is mutually exclusive with the "parameterized_constraint_generator" parameter.

   $type->parameterize(...)
       This   method   takes   two   arguments.   The   "of"  argument  should  be  an  object  which  does  the
       Specio::Constraint::Role::Interface role, and is required.

       The other argument, "declared_at", is optional. If it is not given, then a new Specio::DeclaredAt  object
       is creating using a call stack depth of 1.

       This method returns a new Specio::Constraint::Parameterized object.

SUPPORT

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

       I am also usually active on IRC as 'autarch' on "irc://irc.perl.org".

SOURCE

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

AUTHOR

       Dave Rolsky <autarch@urth.org>

COPYRIGHT AND LICENSE

       This software is Copyright (c) 2012 - 2017 by Dave Rolsky.

       This is free software, licensed under:

         The Artistic License 2.0 (GPL Compatible)

       The full text of the license can be found in the LICENSE file included with this distribution.

perl v5.26.1                                       2017-12-21              Specio::Constr...Parameterizable(3pm)