NAME

       Mouse::Spec - To what extent Mouse is compatible with Moose

VERSION

       This document describes Mouse version 2.1.0

SYNOPSIS

           use Mouse::Spec;

           printf "Mouse/%s is compatible with Moose/%s\n",
               Mouse::Spec->MouseVersion, Mouse::Spec->MooseVersion;

DESCRIPTION

       Mouse is a subset of Moose. This document describes to what extend Mouse is compatible
       (and incompatible) with Moose.

   Compatibility with Moose
       Sugary APIs

       The sugary APIs are highly compatible with Moose. Methods which have the same name as
       Moose's are expected to be compatible with Moose's.

       Meta object protocols

       Meta object protocols are a subset of the counterpart of Moose.  Their methods which have
       the same name as Moose's are expected to be compatible with Moose's. Feel free to use
       these methods even if they are not documented.

       However, there are differences between Moose's MOP and Mouse's.  For example, meta object
       protocols in Mouse have no attributes by default, so "$metaclass->meta->make_immutable()"
       will not work as you expect.  Don not make metaclasses immutable.

       Mouse::Meta::Instance

       Meta instance mechanism is not implemented, so you cannot change the reftype of Mouse
       objects in the same way as Moose.

       Role exclusion

       Role exclusion, "exclude()", is not implemented.

       -metaclass in Mouse::Exporter

       "use Mouse -metaclass => ..." are not implemented.  Use "use Mouse -traits => ..."
       instead.

       Mouse::Meta::Attribute::Native

       Native traits are not supported directly, but "MouseX::NativeTraits" is available on CPAN.
       Once you have installed it, you can use it as the same way in Moose. That is, native
       traits are automatically loaded by Mouse.

       See MouseX::NativeTraits for details.

   Notes about Moose::Cookbook
       Many recipes in Moose::Cookbook fit Mouse, including:

       •   Moose::Cookbook::Basics::Recipe1 - The (always classic) Point example

       •   Moose::Cookbook::Basics::Recipe2 - A simple BankAccount example

       •   Moose::Cookbook::Basics::Recipe3 - A lazy BinaryTree example

       •   Moose::Cookbook::Basics::Recipe4 - Subtypes, and modeling a simple Company class
           hierarchy

       •   Moose::Cookbook::Basics::Recipe5 - More subtypes, coercion in a Request class

       •   Moose::Cookbook::Basics::Recipe6 - The augment/inner example

       •   Moose::Cookbook::Basics::Recipe7 - Making Moose fast with immutable

       •   Moose::Cookbook::Basics::Recipe8 - Builder methods and lazy_build

       •   Moose::Cookbook::Basics::Recipe9 - Operator overloading, subtypes, and coercion

       •   Moose::Cookbook::Basics::Recipe10 - Using BUILDARGS and BUILD to hook into object
           construction

       •   Moose::Cookbook::Roles::Recipe1 - The Moose::Role example

       •   Moose::Cookbook::Roles::Recipe2 - Advanced Role Composition - method exclusion and
           aliasing

       •   Moose::Cookbook::Roles::Recipe3 - Applying a role to an object instance

       •   Moose::Cookbook::Meta::Recipe2 - A meta-attribute, attributes with labels

       •   Moose::Cookbook::Meta::Recipe3 - Labels implemented via attribute traits

       •   Moose::Cookbook::Extending::Recipe3 - Providing an alternate base object class

SEE ALSO

       Mouse

       Moose

       Moose::Manual

       Moose::Cookbook