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Man Pages


Manual Reference Pages  -  MOUSEX::TYPES (3)

.ds Aq ’

NAME

MouseX::Types - Organize your Mouse types in libraries

CONTENTS

SYNOPSIS

    Library Definition



  package MyLibrary;

  # predeclare our own types
  use MouseX::Types
    -declare => [qw(
        PositiveInt NegativeInt
    )];

  # import builtin types
  use MouseX::Types::Mouse Int;

  # type definition.
  subtype PositiveInt,
      as Int,
      where { $_ > 0 },
      message { "Int is not larger than 0" };
 
  subtype NegativeInt,
      as Int,
      where { $_ < 0 },
      message { "Int is not smaller than 0" };

  # type coercion
  coerce PositiveInt,
      from Int,
          via { 1 };

  1;



    Usage



  package Foo;
  use Mouse;
  use MyLibrary qw( PositiveInt NegativeInt );

  # use the exported constants as type names
  has bar,
      isa    => PositiveInt,
      is     => rw;
  has baz,
      isa    => NegativeInt,
      is     => rw;

  sub quux {
      my ($self, $value);

      # test the value
      print "positive\n" if is_PositiveInt($value);
      print "negative\n" if is_NegativeInt($value);

      # coerce the value, NegativeInt doesnt have a coercion
      # helper, since it didnt define any coercions.
      $value = to_PositiveInt($value) or die "Cannot coerce";
  }

  1;



AUTHORS

Kazuhiro Osawa <yappo <at> shibuya <doet> pl>

Shawn M Moore

tokuhirom

Goro Fuji

with plenty of code borrowed from MooseX::Types

REPOSITORY



  git clone git://github.com/yappo/p5-mousex-types.git MouseX-Types



SEE ALSO

Mouse

MooseX::Types

COPYRIGHT AND LICENSE

Copyright (c) 2008-2010, Kazuhiro Osawa and partly based on MooseX::Types, which is (c) Robert Sedlacek.

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

Search for    or go to Top of page |  Section 3 |  Main Index


perl v5.20.3 MOUSEX::TYPES (3) 2011-10-18

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