Method for getting specific definition

Author: Spamercz

src/DI/ContainerBuilder.php

@@ -137,6 +137,17 @@ public function getDefinition(string $name): Definition
 	}
 
 
+	public function getServiceDefinition(string $name): ServiceDefinition
+	{
+		$service = $this->getDefinition($name);
+		if ( ! $service instanceof ServiceDefinition) {
+			throw new MissingServiceException("Service '$name' not found.");
+		}
+
+		return $service;
+	}
+
+
 	/**
 	 * Gets all service definitions.
 	 * @return Definition[]