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]) && $_[0] =~ /^-?[0-9]+$/ }
21 sub ScalarRef { ref($_[0]) eq 'SCALAR' }
22 sub ArrayRef { ref($_[0]) eq 'ARRAY' }
23 sub HashRef { ref($_[0]) eq 'HASH' }
24 sub CodeRef { ref($_[0]) eq 'CODE' }
25 sub RegexpRef { ref($_[0]) eq 'Regexp' }
26 sub GlobRef { ref($_[0]) eq 'GLOB' }
28 sub FileHandle { ref($_[0]) eq 'GLOB' && Scalar::Util::openhandle($_[0]) or blessed($_[0]) && $_[0]->isa("IO::Handle") }
30 sub Object { blessed($_[0]) && blessed($_[0]) ne 'Regexp' }
32 sub Role { blessed($_[0]) && $_[0]->can('does') }
35 return 0 if ref($_[0]) || !defined($_[0]) || !length($_[0]);
37 # walk the symbol table tree to avoid autovififying
38 # \*{${main::}{"Foo::"}} == \*main::Foo::
41 foreach my $part (split('::', $_[0])) {
42 return 0 unless exists ${$$pack}{"${part}::"};
43 $pack = \*{${$$pack}{"${part}::"}};
46 # check for $VERSION or @ISA
47 return 1 if exists ${$$pack}{VERSION}
48 && defined *{${$$pack}{VERSION}}{SCALAR};
49 return 1 if exists ${$$pack}{ISA}
50 && defined *{${$$pack}{ISA}}{ARRAY};
52 # check for any method
53 foreach ( keys %{$$pack} ) {
54 next if substr($_, -2, 2) eq '::';
55 return 1 if defined *{${$$pack}{$_}}{CODE};
63 # we have XS versions too, ...
64 # 04:09 <@konobi> nothingmuch: konobi.co.uk/code/utilsxs.tar.gz
65 # 04:09 <@konobi> or utilxs.tar.gz iirc
75 Moose::Util::TypeConstraints::OptimizedConstraints - Optimized constraint
76 bodies for various moose types
80 This file contains the hand optimized versions of Moose type constraints,
81 no user serviceable parts inside.
121 All complex software has bugs lurking in it, and this module is no
122 exception. If you find a bug please either email me, or add the bug
127 Yuval Kogman E<lt>nothingmuch@cpan.orgE<gt>
129 =head1 COPYRIGHT AND LICENSE
131 Copyright 2007-2008 by Infinity Interactive, Inc.
133 L<http://www.iinteractive.com>
135 This library is free software; you can redistribute it and/or modify
136 it under the same terms as Perl itself.