MouseX::NativeTraits(3pm)

Usage

    package MyClass;
    use Mouse;
    has mapping => (
        traits    => ['Hash'],
        is        => 'rw',
        isa       => 'HashRef[Str]',
        default   => sub { +{} },
        handles   => {
            exists_in_mapping => 'exists',
            ids_in_mapping    => 'keys',
            get_mapping       => 'get',
            set_mapping       => 'set',
            set_quantity      => [ set => 'quantity' ],
        },
    );

Version

This document describes MouseX::NativeTraits version 1.09.

Overview

While Mouse attributes provide a way to name your accessors, readers, writers, clearers and predicates, MouseX::NativeTraits provides commonly used attribute helper methods for more specific types of data.

As seen in the "SYNOPSIS", you specify the data structure via the "traits" parameter. These traits will be loaded automatically, so you need not load MouseX::NativeTraits explicitly.

This extension is compatible with Moose native traits, although it is not a part of Mouse core.

Parameters

handles

This is like "handles" in "has" in Mouse, but only HASH references are allowed. Keys are method names that you want installed locally, and values are methods from the method providers (below). Currying with delegated methods works normally for "handles".

Native traits

Array

Common methods for array references.

    has 'queue' => (
       traits     => ['Array'],
       is         => 'ro',
       isa        => 'ArrayRef[Str]',
       default    => sub { [] },
       handles    => {
           add_item  => 'push',
           next_item => 'shift',
       }
    );

See MouseX::NativeTraits::ArrayRef.

Hash

Common methods for hash references.

    has 'options' => (
        traits    => ['Hash'],
        is        => 'ro',
        isa       => 'HashRef[Str]',
        default   => sub { {} },
        handles   => {
            set_option => 'set',
            get_option => 'get',
            has_option => 'exists',
        }
    );

See MouseX::NativeTraits::HashRef.

Code

Common methods for code references.

    has 'callback' => (
       traits     => ['Code'],
       is         => 'ro',
       isa        => 'CodeRef',
       default    => sub { sub { 'called' } },
       handles    => {
           call => 'execute',
       }
    );

See MouseX::NativeTraits::CodeRef.

Bool

Common methods for boolean values.

    has 'is_lit' => (
        traits    => ['Bool'],
        is        => 'rw',
        isa       => 'Bool',
        default   => 0,
        handles   => {
            illuminate  => 'set',
            darken      => 'unset',
            flip_switch => 'toggle',
            is_dark     => 'not',
        }
    );

See MouseX::NativeTraits::Bool.

String

Common methods for string operations.

    has text => (
        traits    => ['String'],
        is        => 'rw',
        isa       => 'Str',
        default   => q{},
        handles   => {
            add_text     => 'append',
            replace_text => 'replace', # or replace_globally
        }
    );

See MouseX::NativeTraits::Str.

Number

Common numerical operations.

    has value => (
        traits    => ['Number'],
        is        => 'ro',
        isa       => 'Int',
        default   => 5,
        handles   => {
            set => 'set',
            add => 'add',
            sub => 'sub',
            mul => 'mul',
            div => 'div',
            mod => 'mod',
            abs => 'abs',
        }
    );

See MouseX::NativeTraits::Num.

Counter

Methods for incrementing and decrementing a counter attribute.

    has counter => (
        traits    => ['Counter'],
        is        => 'ro',
        isa       => 'Num',
        default   => 0,
        handles   => {
            inc_counter   => 'inc',
            dec_counter   => 'dec',
            reset_counter => 'reset',
        }
    );

See MouseX::NativeTraits::Counter.

Dependencies

Perl 5.6.2 or later.

License and copyright

This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself. See perlartistic for details.

Releases

7 releases since Debian 7 (Wheezy); the text changed 3 times.