/usr/lib/perl5/Moose/Meta/Attribute/Native/Trait.pm is in libmoose-perl 2.1005-1.
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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 | package Moose::Meta::Attribute::Native::Trait;
BEGIN {
$Moose::Meta::Attribute::Native::Trait::AUTHORITY = 'cpan:STEVAN';
}
{
$Moose::Meta::Attribute::Native::Trait::VERSION = '2.1005';
}
use Moose::Role;
use Class::Load qw(load_class);
use List::MoreUtils qw( any uniq );
use Moose::Deprecated;
use Moose::Util;
use Moose::Util::TypeConstraints;
requires '_helper_type';
has _used_default_is => (
is => 'rw',
isa => 'Bool',
default => 0,
);
before '_process_options' => sub {
my ( $self, $name, $options ) = @_;
$self->_check_helper_type( $options, $name );
if ( !( any { exists $options->{$_} } qw( is reader writer accessor ) )
&& $self->can('_default_is') ) {
$options->{is} = $self->_default_is;
$options->{_used_default_is} = 1;
}
if (
!(
$options->{required}
|| any { exists $options->{$_} } qw( default builder lazy_build )
)
&& $self->can('_default_default')
) {
$options->{default} = $self->_default_default;
Moose::Deprecated::deprecated(
feature => 'default default for Native Trait',
message =>
'Allowing a native trait to automatically supply a default is deprecated.'
. ' You can avoid this warning by supplying a default, builder, or making the attribute required'
);
}
};
after 'install_accessors' => sub {
my $self = shift;
return unless $self->_used_default_is;
my @methods
= $self->_default_is eq 'rw'
? qw( reader writer accessor )
: 'reader';
my $name = $self->name;
my $class = $self->associated_class->name;
for my $meth ( uniq grep {defined} map { $self->$_ } @methods ) {
my $message
= "The $meth method in the $class class was automatically created"
. " by the native delegation trait for the $name attribute."
. q{ This "default is" feature is deprecated.}
. q{ Explicitly set "is" or define accessor names to avoid this};
$self->associated_class->add_before_method_modifier(
$meth => sub {
Moose::Deprecated::deprecated(
feature => 'default is for Native Trait',
message =>$message,
);
}
);
}
};
sub _check_helper_type {
my ( $self, $options, $name ) = @_;
my $type = $self->_helper_type;
$options->{isa} = $type
unless exists $options->{isa};
my $isa;
my $isa_name;
if (
Moose::Util::does_role(
$options->{isa}, 'Specio::Constraint::Role::Interface'
)
) {
$isa = $options->{isa};
require Specio::Library::Builtins;
return if $isa->is_a_type_of( Specio::Library::Builtins::t($type) );
$isa_name = $isa->name() || $isa->description();
}
else {
$isa = Moose::Util::TypeConstraints::find_or_create_type_constraint(
$options->{isa} );
return if $isa->is_a_type_of($type);
$isa_name = $isa->name();
}
confess
"The type constraint for $name must be a subtype of $type but it's a $isa_name";
}
before 'install_accessors' => sub { (shift)->_check_handles_values };
sub _check_handles_values {
my $self = shift;
my %handles = $self->_canonicalize_handles;
for my $original_method ( values %handles ) {
my $name = $original_method->[0];
my $accessor_class = $self->_native_accessor_class_for($name);
( $accessor_class && $accessor_class->can('new') )
|| confess
"$name is an unsupported method type - $accessor_class";
}
}
around '_canonicalize_handles' => sub {
shift;
my $self = shift;
my $handles = $self->handles;
return unless $handles;
unless ( 'HASH' eq ref $handles ) {
$self->throw_error(
"The 'handles' option must be a HASH reference, not $handles");
}
return
map { $_ => $self->_canonicalize_handles_value( $handles->{$_} ) }
keys %$handles;
};
sub _canonicalize_handles_value {
my $self = shift;
my $value = shift;
if ( ref $value && 'ARRAY' ne ref $value ) {
$self->throw_error(
"All values passed to handles must be strings or ARRAY references, not $value"
);
}
return ref $value ? $value : [$value];
}
around '_make_delegation_method' => sub {
my $next = shift;
my ( $self, $handle_name, $method_to_call ) = @_;
my ( $name, @curried_args ) = @$method_to_call;
my $accessor_class = $self->_native_accessor_class_for($name);
die "Cannot find an accessor class for $name"
unless $accessor_class && $accessor_class->can('new');
return $accessor_class->new(
name => $handle_name,
package_name => $self->associated_class->name,
delegate_to_method => $name,
attribute => $self,
is_inline => 1,
curried_arguments => \@curried_args,
root_types => [ $self->_root_types ],
);
};
sub _root_types {
return $_[0]->_helper_type;
}
sub _native_accessor_class_for {
my ( $self, $suffix ) = @_;
my $role
= 'Moose::Meta::Method::Accessor::Native::'
. $self->_native_type . '::'
. $suffix;
load_class($role);
return Moose::Meta::Class->create_anon_class(
superclasses =>
[ $self->accessor_metaclass, $self->delegation_metaclass ],
roles => [$role],
cache => 1,
)->name;
}
sub _build_native_type {
my $self = shift;
for my $role_name ( map { $_->name } $self->meta->calculate_all_roles ) {
return $1 if $role_name =~ /::Native::Trait::(\w+)$/;
}
die "Cannot calculate native type for " . ref $self;
}
has '_native_type' => (
is => 'ro',
isa => 'Str',
lazy => 1,
builder => '_build_native_type',
);
no Moose::Role;
no Moose::Util::TypeConstraints;
1;
# ABSTRACT: Shared role for native delegation traits
__END__
=pod
=head1 NAME
Moose::Meta::Attribute::Native::Trait - Shared role for native delegation traits
=head1 VERSION
version 2.1005
=head1 BUGS
See L<Moose/BUGS> for details on reporting bugs.
=head1 SEE ALSO
Documentation for Moose native traits can be found in
L<Moose::Meta::Attribute::Native>.
=head1 AUTHOR
Moose is maintained by the Moose Cabal, along with the help of many contributors. See L<Moose/CABAL> and L<Moose/CONTRIBUTORS> for details.
=head1 COPYRIGHT AND LICENSE
This software is copyright (c) 2013 by Infinity Interactive, Inc..
This is free software; you can redistribute it and/or modify it under
the same terms as the Perl 5 programming language system itself.
=cut
|