README.md
# abstract_type
This is a small standalone gem featuring a module ripped out from [axiom](https://github.com/dkubb/axiom).
It allows to declare abstract_type classes and modules in an unobstrusive way.
[![Gem Version](https://badge.fury.io/rb/abstract_type.png)][gem]
[![Build Status](https://secure.travis-ci.org/dkubb/abstract_type.png?branch=master)][travis]
[![Dependency Status](https://gemnasium.com/dkubb/abstract_type.png)][gemnasium]
[![Code Climate](https://codeclimate.com/github/dkubb/abstract_type.png)][codeclimate]
[![Coverage Status](https://coveralls.io/repos/dkubb/abstract_type/badge.png?branch=master)][coveralls]
[gem]: https://rubygems.org/gems/abstract_type
[travis]: https://travis-ci.org/dkubb/abstract_type
[gemnasium]: https://gemnasium.com/dkubb/abstract_type
[codeclimate]: https://codeclimate.com/github/dkubb/abstract_type
[coveralls]: https://coveralls.io/r/dkubb/abstract_type
## Examples
``` ruby
class Foo
include AbstractType
# Declare abstract instance method
abstract_method :bar
# Declare abstract singleton method
abstract_singleton_method :baz
end
Foo.new # raises NotImplementedError: Foo is an abstract type
Foo.baz # raises NotImplementedError: Foo.baz is not implemented
# Subclassing to allow instantiation
class Baz < Foo; end
object = Baz.new
object.bar # raises NotImplementedError: Baz#bar is not implemented
```
## Credits
* Dan Kubb ([dkubb](https://github.com/dkubb))
* Markus Schirp ([mbj](https://github.com/mbj))
## Contributing
See [CONTRIBUTING.md](CONTRIBUTING.md) for details.
## Copyright
Copyright © 2009-2013 Dan Kubb. See LICENSE for details.