/usr/share/perl5/Class/MakeMethods/Template/ClassVar.pm is in libclass-makemethods-perl 1.01-4.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 | package Class::MakeMethods::Template::ClassVar;
use Class::MakeMethods::Template::Generic '-isasubclass';
$VERSION = 1.008;
use strict;
require 5.0;
use Carp;
=head1 NAME
Class::MakeMethods::Template::ClassVar - Static methods with subclass variation
=head1 SYNOPSIS
package MyObject;
use Class::MakeMethods::Template::ClassVar (
scalar => [ 'foo' ]
);
package main;
MyObject->foo('bar')
print MyObject->foo();
$MyObject::foo = 'bazillion';
print MyObject->foo();
=head1 DESCRIPTION
These meta-methods provide access to package (class global) variables,
with the package determined at run-time.
This is basically the same as the PackageVar meta-methods, except
that PackageVar methods find the named variable in the package that
defines the method, while ClassVar methods use the package the object
is blessed into. As a result, subclasses will each store a distinct
value for a ClassVar method, but will share the same value for a
PackageVar or Static method.
B<Common Parameters>: The following parameters are defined for ClassVar meta-methods.
=over 4
=item variable
The name of the variable to store the value in. Defaults to the same name as the method.
=back
=cut
sub generic {
{
'-import' => {
'Template::Generic:generic' => '*'
},
'params' => {
'variable' => '*'
},
'modifier' => {
'-all' => [ q{ no strict; * } ],
},
'code_expr' => {
'_VALUE_' => '${_SELF_CLASS_."::"._ATTR_{variable}}',
},
}
}
########################################################################
=head2 Standard Methods
The following methods from Generic should all be supported:
scalar
string
string_index (?)
number
boolean
bits (?)
array (*)
hash (*)
tiedhash (?)
hash_of_arrays (?)
object (?)
instance (?)
array_of_objects (?)
code (?)
code_or_scalar (?)
See L<Class::MakeMethods::Template::Generic> for the interfaces and behaviors of these method types.
The items marked with a * above are specifically defined in this package, whereas the others are formed automatically by the interaction of this package's generic settings with the code templates provided by the Generic superclass.
The items marked with a ? above have not been tested sufficiently; please inform the author if they do not function as you would expect.
=cut
########################################################################
sub array {
{
'-import' => {
'Template::Generic:array' => '*',
},
'modifier' => {
'-all' => q{ no strict; _ENSURE_REF_VALUE_; * },
},
'code_expr' => {
'_ENSURE_REF_VALUE_' => q{
_REF_VALUE_ or @{_SELF_CLASS_."::"._ATTR_{variable}} = ();
},
'_VALUE_' => '(\@{_SELF_CLASS_."::"._ATTR_{variable}})',
},
}
}
########################################################################
sub hash {
{
'-import' => {
'Template::Generic:hash' => '*',
},
'modifier' => {
'-all' => q{ no strict; _ENSURE_REF_VALUE_; * },
},
'code_expr' => {
'_ENSURE_REF_VALUE_' => q{
_REF_VALUE_ or %{_SELF_CLASS_."::"._ATTR_{variable}} = ();
},
'_VALUE_' => '(\%{_SELF_CLASS_."::"._ATTR_{variable}})',
},
}
}
########################################################################
=head2 vars
This rewrite rule converts package variable names into ClassVar methods of the equivalent data type.
Here's an example declaration:
package MyClass;
use Class::MakeMethods::Template::ClassVar (
vars => '$VERSION @ISA'
);
MyClass now has methods that get and set the contents of its $MyClass::VERSION and @MyClass::ISA package variables:
MyClass->VERSION( 2.4 );
MyClass->push_ISA( 'Exporter' );
Subclasses can use these methods to adjust their own variables:
package MySubclass;
MySubclass->MyClass::push_ISA( 'MyClass' );
MySubclass->VERSION( 1.0 );
=cut
sub vars {
my $mm_class = shift;
my @rewrite = map [ "Template::ClassVar:$_" ], qw( scalar array hash );
my %rewrite = ( '$' => 0, '@' => 1, '%' => 2 );
while (@_) {
my $name = shift;
my $data = shift;
$data =~ s/\A(.)//;
push @{ $rewrite[ $rewrite{ $1 } ] }, { 'name'=>$name, 'variable'=>$data };
}
return @rewrite;
}
1;
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