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1 | package Moose::Util::TypeConstraints::OptimizedConstraints; |
2 | |
3 | use strict; |
4 | use warnings; |
5 | |
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6 | use Scalar::Util 'blessed', 'looks_like_number'; |
7 | |
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8 | our $VERSION = '0.52'; |
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9 | our $AUTHORITY = 'cpan:STEVAN'; |
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10 | |
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11 | sub Value { defined($_[0]) && !ref($_[0]) } |
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12 | |
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13 | sub Ref { ref($_[0]) } |
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14 | |
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15 | sub Str { defined($_[0]) && !ref($_[0]) } |
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16 | |
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17 | sub Num { !ref($_[0]) && looks_like_number($_[0]) } |
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18 | |
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19 | sub Int { defined($_[0]) && !ref($_[0]) && $_[0] =~ /^-?[0-9]+$/ } |
20 | |
21 | { |
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' } |
29 | } |
30 | |
31 | sub FileHandle { ref($_[0]) eq 'GLOB' && Scalar::Util::openhandle($_[0]) or blessed($_[0]) && $_[0]->isa("IO::Handle") } |
32 | |
33 | sub Object { blessed($_[0]) && blessed($_[0]) ne 'Regexp' } |
34 | |
35 | sub Role { blessed($_[0]) && $_[0]->can('does') } |
36 | |
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37 | sub ClassName { |
38 | return 0 if ref($_[0]) || !defined($_[0]) || !length($_[0]); |
39 | |
40 | # walk the symbol table tree to avoid autovififying |
41 | # \*{${main::}{"Foo::"}} == \*main::Foo:: |
42 | |
43 | my $pack = \*::; |
44 | foreach my $part (split('::', $_[0])) { |
45 | return 0 unless exists ${$$pack}{"${part}::"}; |
46 | $pack = \*{${$$pack}{"${part}::"}}; |
47 | } |
48 | |
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}; |
54 | |
55 | # check for any method |
56 | foreach ( keys %{$$pack} ) { |
57 | next if substr($_, -2, 2) eq '::'; |
58 | return 1 if defined *{${$$pack}{$_}}{CODE}; |
59 | } |
60 | |
61 | # fail |
62 | return 0; |
63 | } |
64 | |
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65 | # NOTE: |
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 |
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69 | |
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70 | 1; |
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71 | |
72 | __END__ |
73 | |
74 | =pod |
75 | |
76 | =head1 NAME |
77 | |
78 | Moose::Util::TypeConstraints::OptimizedConstraints - Optimized constraint |
79 | bodies for various moose types |
80 | |
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81 | =head1 DESCRIPTION |
82 | |
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83 | This file contains the hand optimized versions of Moose type constraints, |
84 | no user serviceable parts inside. |
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85 | |
86 | =head1 FUNCTIONS |
87 | |
88 | =over 4 |
89 | |
90 | =item Value |
91 | |
92 | =item Ref |
93 | |
94 | =item Str |
95 | |
96 | =item Num |
97 | |
98 | =item Int |
99 | |
100 | =item ScalarRef |
101 | |
102 | =item ArrayRef |
103 | |
104 | =item HashRef |
105 | |
106 | =item CodeRef |
107 | |
108 | =item RegexpRef |
109 | |
110 | =item GlobRef |
111 | |
112 | =item FileHandle |
113 | |
114 | =item Object |
115 | |
116 | =item Role |
117 | |
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118 | =item ClassName |
119 | |
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120 | =back |
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121 | |
122 | =head1 BUGS |
123 | |
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 |
126 | to cpan-RT. |
127 | |
128 | =head1 AUTHOR |
129 | |
130 | Yuval Kogman E<lt>nothingmuch@cpan.orgE<gt> |
131 | |
132 | =head1 COPYRIGHT AND LICENSE |
133 | |
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134 | Copyright 2007-2008 by Infinity Interactive, Inc. |
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135 | |
136 | L<http://www.iinteractive.com> |
137 | |
138 | This library is free software; you can redistribute it and/or modify |
139 | it under the same terms as Perl itself. |
140 | |
141 | =cut |