public function getDependencies()
    {
        $dependencies = [];
        if ($this->extendsClassDefinition && $this->extendsClassDefinition instanceof self) {
            $dependencies[] = $this->extendsClassDefinition;
        }

        foreach ($this->implementedInterfaceDefinitions as $interfaceDefinition) {
            if ($interfaceDefinition instanceof self) {
                $dependencies[] = $interfaceDefinition;
            }
        }

        return $dependencies;
    }