Commit | Line | Data |
4093c859 |
1 | #!/usr/bin/env perl |
2 | package Mouse::Util; |
3 | use strict; |
4 | use warnings; |
5 | use base 'Exporter'; |
6 | |
7 | our %dependencies = ( |
8fcbe7fb |
8 | 'Scalar::Util' => { |
9 | 'blessed' => do { |
10 | do { |
11 | no strict 'refs'; |
12 | *UNIVERSAL::a_sub_not_likely_to_be_here = sub { |
13 | my $ref = ref($_[0]); |
14 | |
15 | # deviation from Scalar::Util |
16 | # XS returns undef, PP returns GLOB. |
17 | # let's make that more consistent by having PP return |
18 | # undef if it's a GLOB. :/ |
19 | |
20 | # \*STDOUT would be allowed as an object in PP blessed |
21 | # but not XS |
22 | return $ref eq 'GLOB' ? undef : $ref; |
23 | }; |
24 | }; |
25 | |
26 | sub { |
27 | local($@, $SIG{__DIE__}, $SIG{__WARN__}); |
28 | length(ref($_[0])) |
29 | ? eval { $_[0]->a_sub_not_likely_to_be_here } |
30 | : undef; |
31 | }, |
32 | }, |
58fe9fb7 |
33 | 'looks_like_number' => sub { |
34 | local $_ = shift; |
35 | |
36 | # checks from perlfaq4 |
37 | return 0 if !defined($_) or ref($_); |
38 | return 1 if (/^[+-]?\d+$/); # is a +/- integer |
39 | return 1 if (/^([+-]?)(?=\d|\.\d)\d*(\.\d*)?([Ee]([+-]?\d+))?$/); # a C float |
40 | return 1 if ($] >= 5.008 and /^(Inf(inity)?|NaN)$/i) or ($] >= 5.006001 and /^Inf$/i); |
41 | |
42 | 0; |
43 | }, |
8fcbe7fb |
44 | }, |
4093c859 |
45 | 'MRO::Compat' => { |
46 | 'get_linear_isa' => { |
47 | loaded => \&mro::get_linear_isa, |
48 | not_loaded => do { |
49 | # this recurses so it isn't pretty |
50 | my $code; |
51 | $code = sub { |
52 | no strict 'refs'; |
53 | |
54 | my $classname = shift; |
55 | |
56 | my @lin = ($classname); |
57 | my %stored; |
58 | foreach my $parent (@{"$classname\::ISA"}) { |
59 | my $plin = $code->($parent); |
60 | foreach (@$plin) { |
61 | next if exists $stored{$_}; |
62 | push(@lin, $_); |
63 | $stored{$_} = 1; |
64 | } |
65 | } |
66 | return \@lin; |
67 | } |
68 | }, |
69 | }, |
70 | }, |
71 | ); |
72 | |
73 | our @EXPORT_OK = map { keys %$_ } values %dependencies; |
74 | |
75 | for my $module_name (keys %dependencies) { |
76 | (my $file = "$module_name.pm") =~ s{::}{/}g; |
77 | |
78 | my $loaded = do { |
79 | local $SIG{__DIE__} = 'DEFAULT'; |
80 | eval "require '$file'; 1"; |
81 | }; |
82 | |
83 | for my $method_name (keys %{ $dependencies{ $module_name } }) { |
84 | my $producer = $dependencies{$module_name}{$method_name}; |
85 | my $implementation; |
86 | |
87 | if (ref($producer) eq 'HASH') { |
88 | $implementation = $loaded |
89 | ? $producer->{loaded} |
90 | : $producer->{not_loaded}; |
91 | } |
92 | else { |
93 | $implementation = $loaded |
94 | ? $module_name->can($method_name) |
95 | : $producer; |
96 | } |
97 | |
98 | no strict 'refs'; |
99 | *{ __PACKAGE__ . '::' . $method_name } = $implementation; |
100 | } |
101 | } |
102 | |
103 | 1; |
104 | |