1 package Moose::Util::TypeConstraints::OptimizedConstraints;
6 use Scalar::Util 'blessed', 'looks_like_number';
9 our $AUTHORITY = 'cpan:STEVAN';
11 sub Value { defined($_[0]) && !ref($_[0]) }
13 sub Ref { ref($_[0]) }
15 sub Str { defined($_[0]) && !ref($_[0]) }
17 sub Num { !ref($_[0]) && looks_like_number($_[0]) }
19 sub Int { defined($_[0]) && !ref($_[0]) && $_[0] =~ /^-?[0-9]+$/ }
22 no warnings 'uninitialized';
23 sub ScalarRef { ref($_[0]) eq 'SCALAR' }
24 sub ArrayRef { ref($_[0]) eq 'ARRAY' }
25 sub HashRef { ref($_[0]) eq 'HASH' }
26 sub CodeRef { ref($_[0]) eq 'CODE' }
27 sub RegexpRef { ref($_[0]) eq 'Regexp' }
28 sub GlobRef { ref($_[0]) eq 'GLOB' }
31 sub FileHandle { ref($_[0]) eq 'GLOB' && Scalar::Util::openhandle($_[0]) or blessed($_[0]) && $_[0]->isa("IO::Handle") }
33 sub Object { blessed($_[0]) && blessed($_[0]) ne 'Regexp' }
35 sub Role { blessed($_[0]) && $_[0]->can('does') }
38 return 0 if ref($_[0]) || !defined($_[0]) || !length($_[0]);
40 # walk the symbol table tree to avoid autovififying
41 # \*{${main::}{"Foo::"}} == \*main::Foo::
44 foreach my $part (split('::', $_[0])) {
45 return 0 unless exists ${$$pack}{"${part}::"};
46 $pack = \*{${$$pack}{"${part}::"}};
49 # check for $VERSION or @ISA
50 return 1 if exists ${$$pack}{VERSION}
51 && defined *{${$$pack}{VERSION}}{SCALAR};
52 return 1 if exists ${$$pack}{ISA}
53 && defined *{${$$pack}{ISA}}{ARRAY};
55 # check for any method
56 foreach ( keys %{$$pack} ) {
57 next if substr($_, -2, 2) eq '::';
58 return 1 if defined *{${$$pack}{$_}}{CODE};
66 # we have XS versions too, ...
67 # 04:09 <@konobi> nothingmuch: konobi.co.uk/code/utilsxs.tar.gz
68 # 04:09 <@konobi> or utilxs.tar.gz iirc
78 Moose::Util::TypeConstraints::OptimizedConstraints - Optimized constraint
79 bodies for various moose types
83 This file contains the hand optimized versions of Moose type constraints,
84 no user serviceable parts inside.
124 All complex software has bugs lurking in it, and this module is no
125 exception. If you find a bug please either email me, or add the bug
130 Yuval Kogman E<lt>nothingmuch@cpan.orgE<gt>
132 =head1 COPYRIGHT AND LICENSE
134 Copyright 2007-2008 by Infinity Interactive, Inc.
136 L<http://www.iinteractive.com>
138 This library is free software; you can redistribute it and/or modify
139 it under the same terms as Perl itself.