MouseX::Types::Enum - Object-oriented, Java-like enum type declaration based on Mouse
In the following example,
Three enumeration constants, APPLE, GRAPE, and BANANA are defined.
APPLE
GRAPE
BANANA
Three instance variables, name, color, price and has_seed are defined.
name
color
price
has_seed
A method make_sentence($suffix) is defined.
make_sentence($suffix)
code:
{ package Fruits; use strict; use warnings; use Mouse; extends 'MouseX::Types::Enum'; has name => (is => 'ro', isa => 'Str'); has color => (is => 'ro', isa => 'Str'); has price => (is => 'ro', isa => 'Num'); has has_seed => (is => 'ro', isa => 'Int', default => 1); sub make_sentence { my ($self, $suffix) = @_; $suffix ||= ""; return sprintf("%s is %s%s", $self->name, $self->color, $suffix); } sub APPLE {1 => ( name => 'Apple', color => 'red', price => 1.2, )} sub GRAPE {2 => ( name => 'Grape', color => 'purple', price => 3.5, )} sub BANANA {3 => ( name => 'Banana', color => 'yellow', has_seed => 0, price => 1.5, )} __PACKAGE__->_build_enum; 1; } # equivalence ok(Fruits->APPLE == Fruits->APPLE); ok(Fruits->APPLE != Fruits->GRAPE); ok(Fruits->APPLE != Fruits->BANANA); # instance variable is(Fruits->APPLE->name, 'Apple'); is(Fruits->APPLE->color, 'red'); is(Fruits->APPLE->price, 1.2); # instance method is(Fruits->APPLE->make_sentence('!'), 'Apple is red!'); # get instance is(Fruits->get(1), Fruits->APPLE); is(Fruits->get(2), Fruits->GRAPE); is(Fruits->get(3), Fruits->BANANA); is_deeply(Fruits->all, { 1 => Fruits->APPLE, 2 => Fruits->GRAPE, 3 => Fruits->BANANA, });
MouseX::Types::Enum provides Java-like enum type declaration based on Mouse. You can declare enums which have instance variables and methods.
Copyright (C) Naoto Ikeno.
This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself.
Naoto Ikeno <ikenox@gmail.com>
To install MouseX::Types::Enum, copy and paste the appropriate command in to your terminal.
cpanm
cpanm MouseX::Types::Enum
CPAN shell
perl -MCPAN -e shell install MouseX::Types::Enum
For more information on module installation, please visit the detailed CPAN module installation guide.