Add built local::lib

[catagits/Gitalist.git] / local-lib5 / lib / perl5 / Moose / Meta / Attribute / Native / Trait.pm

diff --git a/local-lib5/lib/perl5/Moose/Meta/Attribute/Native/Trait.pm b/local-lib5/lib/perl5/Moose/Meta/Attribute/Native/Trait.pm
new file mode 100644 (file)
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+++ b/local-lib5/lib/perl5/Moose/Meta/Attribute/Native/Trait.pm
@@ -0,0 +1,170 @@
+
+package Moose::Meta::Attribute::Native::Trait;
+use Moose::Role;
+use Moose::Util::TypeConstraints;
+
+our $VERSION   = '0.93';
+$VERSION = eval $VERSION;
+our $AUTHORITY = 'cpan:STEVAN';
+
+requires '_helper_type';
+
+# these next two are the possible methods you can use in the 'handles'
+# map.
+
+# provide a Class or Role which we can collect the method providers
+# from
+
+# or you can provide a HASH ref of anon subs yourself. This will also
+# collect and store the methods from a method_provider as well
+has 'method_constructors' => (
+    is      => 'ro',
+    isa     => 'HashRef',
+    lazy    => 1,
+    default => sub {
+        my $self = shift;
+        return +{} unless $self->has_method_provider;
+        # or grab them from the role/class
+        my $method_provider = $self->method_provider->meta;
+        return +{
+            map {
+                $_ => $method_provider->get_method($_)
+            } $method_provider->get_method_list
+        };
+    },
+);
+
+has '+default'         => ( required => 1 );
+has '+type_constraint' => ( required => 1 );
+
+# methods called prior to instantiation
+
+before '_process_options' => sub {
+    my ( $self, $name, $options ) = @_;
+
+    $self->_check_helper_type( $options, $name );
+
+    $options->{is} = $self->_default_is
+        if ! exists $options->{is} && $self->can('_default_is');
+
+    $options->{default} = $self->_default_default
+        if ! exists $options->{default} && $self->can('_default_default');
+};
+
+sub _check_helper_type {
+    my ( $self, $options, $name ) = @_;
+
+    my $type = $self->_helper_type;
+
+    $options->{isa} = $type
+        unless exists $options->{isa};
+
+    my $isa = Moose::Util::TypeConstraints::find_or_create_type_constraint(
+        $options->{isa} );
+
+    ( $isa->is_a_type_of($type) )
+        || confess
+        "The type constraint for $name must be a subtype of $type but it's a $isa";
+}
+
+around '_canonicalize_handles' => sub {
+    my $next    = 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 {
+        my $to = $handles->{$_};
+        $to = [$to] unless ref $to;
+        $_ => $to
+    } keys %$handles;
+};
+
+# methods called after instantiation
+
+before 'install_accessors' => sub { (shift)->_check_handles_values };
+
+sub _check_handles_values {
+    my $self = shift;
+
+    my $method_constructors = $self->method_constructors;
+
+    my %handles = $self->_canonicalize_handles;
+
+    for my $original_method ( values %handles ) {
+        my $name = $original_method->[0];
+        ( exists $method_constructors->{$name} )
+            || confess "$name is an unsupported method type";
+    }
+
+}
+
+around '_make_delegation_method' => sub {
+    my $next = shift;
+    my ( $self, $handle_name, $method_to_call ) = @_;
+
+    my ( $name, @curried_args ) = @$method_to_call;
+
+    my $method_constructors = $self->method_constructors;
+
+    my $code = $method_constructors->{$name}->(
+        $self,
+        $self->get_read_method_ref,
+        $self->get_write_method_ref,
+    );
+
+    return $next->(
+        $self,
+        $handle_name,
+        sub {
+            my $instance = shift;
+            return $code->( $instance, @curried_args, @_ );
+        },
+    );
+};
+
+no Moose::Role;
+no Moose::Util::TypeConstraints;
+
+1;
+
+__END__
+
+=head1 NAME
+
+Moose::Meta::Attribute::Native::Trait - Base role for helpers
+
+=head1 BUGS
+
+All complex software has bugs lurking in it, and this module is no
+exception. If you find a bug please either email me, or add the bug
+to cpan-RT.
+
+=head1 SEE ALSO
+
+Documentation for Moose native traits starts at L<Moose::Meta::Attribute Native>
+
+=head1 AUTHORS
+
+Yuval Kogman
+
+Shawn M Moore
+
+Jesse Luehrs
+
+=head1 COPYRIGHT AND LICENSE
+
+Copyright 2007-2009 by Infinity Interactive, Inc.
+
+L<http://www.iinteractive.com>
+
+This library is free software; you can redistribute it and/or modify
+it under the same terms as Perl itself.
+
+=cut