table of contents
|Specio::Constraint::Parameterizable(3pm)||User Contributed Perl Documentation||Specio::Constraint::Parameterizable(3pm)|
Specio::Constraint::Parameterizable - A class which represents parameterizable constraints
my $arrayref = t('ArrayRef'); my $arrayref_of_int = $arrayref->parameterize( of => t('Int') );
This class implements the API for parameterizable types like "ArrayRef" and "Maybe".
This class implements the same API as Specio::Constraint::Simple, with a few additions.
This class's constructor accepts two additional parameters:
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.
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.
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.
Bugs may be submitted at <https://github.com/houseabsolute/Specio/issues>.
The source code repository for Specio can be found at <https://github.com/houseabsolute/Specio>.
Dave Rolsky <email@example.com>
COPYRIGHT AND LICENSE¶
This software is Copyright (c) 2012 - 2022 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.