--- a/lib/IMPL/Config/ServiceDescriptor.pm	Thu Oct 29 03:50:25 2015 +0300
+++ b/lib/IMPL/Config/ServiceDescriptor.pm	Mon Nov 02 01:56:53 2015 +0300
@@ -13,10 +13,11 @@
 		'IMPL::Config::Descriptor' => undef
 	],
 	props => [
-		type       => 'ro',
-		activation => 'ro',
-		args       => 'ro',
-		services   => 'ro',
+		type       => 'r',
+		activation => 'r',
+		args       => 'r',
+		services   => 'r',
+		norequire  => 'r',
 		_name      => 'rw',
 		_loaded    => 'rw'
 	]
@@ -30,8 +31,9 @@
 
 	$this->activation(
 		IMPL::Config::Descriptor::ParseActivation( $opts{activation} ) );
-	$this->args( $opts{args} )         if exists $opts{args};
-	$this->services( $opts{services} ) if exists $opts{services};
+	$this->args( $opts{args} )           if exists $opts{args};
+	$this->services( $opts{services} )   if exists $opts{services};
+	$this->norequire( $opts{norequire} ) if exists $opts{norequire};
 
 	$this->_name( 'new {'
 		  . IMPL::Config::Descriptor::ActivationToString( $this->activation )
@@ -43,35 +45,29 @@
 	my ( $this, $context ) = @_;
 
 	my $instance;
-	$context->GuardScope(
-		$this->_name,
-		$this->services,
-		sub {
+	$context->EnterScope( $this->_name, $this->services );
 
-			my $activation = $this->activation;
-			my $cache;
+	my $activation = $this->activation;
+	my $cache;
 
-			if ( $activation == IMPL::Config::Descriptor::ACTIVATE_SINGLETON ) {
-				$cache = $context->container->root->instances;
-			}
-			elsif (
-				$activation == IMPL::Config::Descriptor::ACTIVATE_CONTAINER )
-			{
-				$cache = $context->container->instances;
-			}
-			elsif ( $activation == IMPL::Config::Descriptor::ACTIVATE_CONTEXT )
-			{
-				$cache = $context->instances;
-			}
+	if ( $activation == IMPL::Config::Descriptor::ACTIVATE_SINGLETON ) {
+		$cache = $context->container->root->instances;
+	}
+	elsif ( $activation == IMPL::Config::Descriptor::ACTIVATE_CONTAINER ) {
+		$cache = $context->container->instances;
+	}
+	elsif ( $activation == IMPL::Config::Descriptor::ACTIVATE_CONTEXT ) {
+		$cache = $context->instances;
+	}
 
-			$instance = $cache->{ ref($this) } if $cache;
-			unless ($instance) {
-				$instance = $this->CreateInstance($context);
-			}
+	$instance = $cache->{ ref($this) } if $cache;
+	unless ($instance) {
+		$instance = $this->CreateInstance($context);
+	}
 
-			$cache->{ ref($this) } = $instance if $cache;
-		}
-	);
+	$cache->{ ref($this) } = $instance if $cache;
+
+	$context->LeaveScope();
 
 	return $instance;
 }
@@ -79,7 +75,10 @@
 sub CreateInstance {
 	my ( $this, $context ) = @_;
 
-	my $class = $context > container->Require( $this->type );
+	my $class =
+	    $this->norequire
+	  ? $this->type
+	  : $context->container->Require( $this->type );
 
 	my $args = $this->args ? $this->args->Activate($context) : undef;