src/main/php/ioc/binding/SingletonBindingScope.php
public function getInstance(\ReflectionClass $impl, InjectionProvider $provider)
    {
        $key = $impl->getName();
        if (!isset($this->instances[$key])) {
            $this->instances[$key] = $provider->get();
        }

        return $this->instances[$key];
    }
public function getInstance(\ReflectionClass $impl, InjectionProvider $provider)
    {
        $key = $impl->getName();
        if (!isset($this->instances[$key])) {
            $this->instances[$key] = $provider->get();
        }

        return $this->instances[$key];
    }
returns the requested instance from the scope

@param   \ReflectionClass                 $impl      concrete implementation
@param   \stubbles\ioc\InjectionProvider  $provider
@return  object