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ajf/newtype
===========

A handy function for creating opaque types

v1.0.3(8y ago)18231LGPL-3.0-or-laterPHPPHP >=7.0.0

Since Nov 10Pushed 8y ago1 watchersCompare

[ Source](https://github.com/TazeTSchnitzel/newType)[ Packagist](https://packagist.org/packages/ajf/newtype)[ Docs](http://github.com/TazeTSchnitzel/newType)[ RSS](/packages/ajf-newtype/feed)WikiDiscussions master Synced today

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newType - Create an opaque type with a single line of code
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[](#newtype---create-an-opaque-type-with-a-single-line-of-code)

`newType()` is a handy function for creating opaque types, that is, a type that merely wraps another type. It takes two parameters: the name of your new wrapper type, and the name of the type you want to wrap. You get a class with a constructor taking a value of the wrapped type, and an `->unbox()` method to get out the value of the wrapped type.

Require it with `composer require ajf/newtype` to use it. It's PHP 7-only, since PHP 7 is the first version of PHP with scalar type declarations. It would be possible to backport this, though.

An example of where you might use this:

```