NAME¶
Types::TypeTiny - type constraints used internally by Type::Tiny
STATUS¶
This module is covered by the Type-Tiny stability policy.
DESCRIPTION¶
Dogfooding.
This isn't a real Type::Library-based type library; that would involve too much
circularity. But it exports some type constraints which, while designed for
use within Type::Tiny, may be more generally useful.
Types¶
- "StringLike"
- Accepts strings and objects overloading stringification.
- "HashLike"
- Accepts hashrefs and objects overloading hashification.
- "ArrayLike"
- Accepts arrayrefs and objects overloading arrayfication.
- "CodeLike"
- Accepts coderefs and objects overloading codification.
- "TypeTiny"
- Accepts blessed Type::Tiny objects.
Coercion Functions¶
- "to_TypeTiny($constraint)"
- Promotes (or "demotes" if you prefer) a
Moose::Meta::TypeConstraint object to a Type::Tiny object.
Can also handle Validation::Class objects. Type constraints built from
Validation::Class objects deliberately ignore field filters when
they do constraint checking (and go to great lengths to do so); using
filters for coercion only. (The behaviour of "coerce" if we
don't do that is just too weird!)
Can also handle any object providing "check" and
"get_message" methods. (This includes
Mouse::Meta::TypeConstraint objects.) If the object also provides
"has_coercion" and "coerce" methods, these will be
used too.
Can also handle coderefs (but not blessed coderefs or objects overloading
"&{}"). Coderefs are expected to return true iff $_ passes
the constraint. If $_ fails the type constraint, they may either return
false, or die with a helpful error message.
Methods¶
These are implemented so that
"Types::TypeTiny->meta->get_type($foo)" works, for rough
compatibility with a real Type::Library type library.
- "meta"
- "type_names"
- "get_type($name)"
- "has_type($name)"
- "coercion_names"
- "get_coercion($name)"
- "has_coercion($name)"
BUGS¶
Please report any bugs to
<
http://rt.cpan.org/Dist/Display.html?Queue=Type-Tiny>.
SEE ALSO¶
Type::Tiny.
AUTHOR¶
Toby Inkster <tobyink@cpan.org>.
COPYRIGHT AND LICENCE¶
This software is copyright (c) 2013-2014 by Toby Inkster.
This is free software; you can redistribute it and/or modify it under the same
terms as the Perl 5 programming language system itself.
DISCLAIMER OF WARRANTIES¶
THIS PACKAGE IS PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR IMPLIED
WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.