Initial Commit

database/perl/vendor/lib/Class/MOP/Method/Inlined.pm

@@ -0,0 +1,191 @@
+package Class::MOP::Method::Inlined;
+our $VERSION = '2.2014';
+
+use strict;
+use warnings;
+
+use Scalar::Util 'refaddr';
+
+use parent 'Class::MOP::Method::Generated';
+
+sub _uninlined_body {
+    my $self = shift;
+
+    my $super_method
+        = $self->associated_metaclass->find_next_method_by_name( $self->name )
+        or return;
+
+    if ( $super_method->isa(__PACKAGE__) ) {
+        return $super_method->_uninlined_body;
+    }
+    else {
+        return $super_method->body;
+    }
+}
+
+sub can_be_inlined {
+    my $self      = shift;
+    my $metaclass = $self->associated_metaclass;
+    my $class     = $metaclass->name;
+
+    # If we don't find an inherited method, this is a rather weird
+    # case where we have no method in the inheritance chain even
+    # though we're expecting one to be there
+    my $inherited_method
+        = $metaclass->find_next_method_by_name( $self->name );
+
+    if (   $inherited_method
+        && $inherited_method->isa('Class::MOP::Method::Wrapped') ) {
+        warn "Not inlining '"
+            . $self->name
+            . "' for $class since it "
+            . "has method modifiers which would be lost if it were inlined\n";
+
+        return 0;
+    }
+
+    my $expected_class = $self->_expected_method_class
+        or return 1;
+
+    # if we are shadowing a method we first verify that it is
+    # compatible with the definition we are replacing it with
+    my $expected_method = $expected_class->can( $self->name );
+
+    if ( ! $expected_method ) {
+        warn "Not inlining '"
+            . $self->name
+            . "' for $class since ${expected_class}::"
+            . $self->name
+            . " is not defined\n";
+
+        return 0;
+    }
+
+    my $actual_method = $class->can( $self->name )
+        or return 1;
+
+    # the method is what we wanted (probably Moose::Object::new)
+    return 1
+        if refaddr($expected_method) == refaddr($actual_method);
+
+    # otherwise we have to check that the actual method is an inlined
+    # version of what we're expecting
+    if ( $inherited_method->isa(__PACKAGE__) ) {
+        if ( $inherited_method->_uninlined_body
+             && refaddr( $inherited_method->_uninlined_body )
+             == refaddr($expected_method) ) {
+            return 1;
+        }
+    }
+    elsif ( refaddr( $inherited_method->body )
+            == refaddr($expected_method) ) {
+        return 1;
+    }
+
+    my $warning
+        = "Not inlining '"
+        . $self->name
+        . "' for $class since it is not"
+        . " inheriting the default ${expected_class}::"
+        . $self->name . "\n";
+
+    if ( $self->isa("Class::MOP::Method::Constructor") ) {
+
+        # FIXME kludge, refactor warning generation to a method
+        $warning
+            .= "If you are certain you don't need to inline your"
+            . " constructor, specify inline_constructor => 0 in your"
+            . " call to $class->meta->make_immutable\n";
+    }
+
+    warn $warning;
+
+    return 0;
+}
+
+1;
+
+# ABSTRACT: Method base class for methods which have been inlined
+
+__END__
+
+=pod
+
+=encoding UTF-8
+
+=head1 NAME
+
+Class::MOP::Method::Inlined - Method base class for methods which have been inlined
+
+=head1 VERSION
+
+version 2.2014
+
+=head1 DESCRIPTION
+
+This is a L<Class::MOP::Method::Generated> subclass for methods which
+can be inlined.
+
+=head1 METHODS
+
+=head2 $metamethod->can_be_inlined
+
+This method returns true if the method in question can be inlined in
+the associated metaclass.
+
+If it cannot be inlined, it spits out a warning and returns false.
+
+=head1 AUTHORS
+
+=over 4
+
+=item *
+
+Stevan Little <stevan@cpan.org>
+
+=item *
+
+Dave Rolsky <autarch@urth.org>
+
+=item *
+
+Jesse Luehrs <doy@cpan.org>
+
+=item *
+
+Shawn M Moore <sartak@cpan.org>
+
+=item *
+
+יובל קוג'מן (Yuval Kogman) <nothingmuch@woobling.org>
+
+=item *
+
+Karen Etheridge <ether@cpan.org>
+
+=item *
+
+Florian Ragwitz <rafl@debian.org>
+
+=item *
+
+Hans Dieter Pearcey <hdp@cpan.org>
+
+=item *
+
+Chris Prather <chris@prather.org>
+
+=item *
+
+Matt S Trout <mstrout@cpan.org>
+
+=back
+
+=head1 COPYRIGHT AND LICENSE
+
+This software is copyright (c) 2006 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