Symfony\Component\DependencyInjection\Definition::isLazy PHP Method

    public function isLazy()
    {
        return $this->lazy;
    }

    /**
     * Adds a service
     *
     * @param string     $id
     * @param Definition $definition
     *
     * @return string
     */
    private function addService($id, $definition)
    {
        $this->definitionVariables = new \SplObjectStorage();
        $this->referenceVariables = array();
        $this->variableCount = 0;
        $return = array();
        if ($definition->isSynthetic()) {
            $return[] = '@throws RuntimeException always since this service is expected to be injected dynamically';
        } elseif ($class = $definition->getClass()) {
            $return[] = sprintf("@return %s A %s instance.", 0 === strpos($class, '%') ? 'object' : $class, $class);
        } elseif ($definition->getFactoryClass()) {
            $return[] = sprintf('@return object An instance returned by %s::%s().', $definition->getFactoryClass(), $definition->getFactoryMethod());
        } elseif ($definition->getFactoryService()) {
            $return[] = sprintf('@return object An instance returned by %s::%s().', $definition->getFactoryService(), $definition->getFactoryMethod());
        }
        $scope = $definition->getScope();
        if (!in_array($scope, array(ContainerInterface::SCOPE_CONTAINER, ContainerInterface::SCOPE_PROTOTYPE))) {
            if ($return && 0 === strpos($return[count($return) - 1], '@return')) {
                $return[] = '';
            }
            $return[] = sprintf("@throws InactiveScopeException when the '%s' service is requested while the '%s' scope is not active", $id, $scope);
        }
        $return = implode("\n     * ", $return);
        $doc = '';
        if (ContainerInterface::SCOPE_PROTOTYPE !== $scope) {
            $doc .= <<<EOF

     *
     * This service is shared.
     * This method always returns the same instance of the service.
EOF;
        }
        if (!$definition->isPublic()) {
            $doc .= <<<EOF

     *
     * This service is private.
     * If you want to be able to request this service from the container directly,
     * make it public, otherwise you might end up with broken code.
EOF;
        }
        if ($definition->isLazy()) {
            $lazyInitialization = '$lazyLoad = true';
            $lazyInitializationDoc = "\n     * @param boolean \$lazyLoad whether to try lazy-loading the service with a proxy\n     *";
        } else {
            $lazyInitialization = '';
            $lazyInitializationDoc = '';
        }
        // with proxies, for 5.3.3 compatibility, the getter must be public to be accessible to the initializer
        $isProxyCandidate = $this->getProxyDumper()->isProxyCandidate($definition);
        $visibility = $isProxyCandidate ? 'public' : 'protected';
        $code = <<<EOF

    /**
     * Gets the '{$id}' service.{$doc}
     *{$lazyInitializationDoc}
     * {$return}
     */
    {$visibility} function get{$this->camelize($id)}Service({$lazyInitialization})
    {

EOF;
        $code .= $isProxyCandidate ? $this->getProxyDumper()->getProxyFactoryCode($definition, $id) : '';
        if (!in_array($scope, array(ContainerInterface::SCOPE_CONTAINER, ContainerInterface::SCOPE_PROTOTYPE))) {
            $code .= <<<EOF
        if (!isset(\$this->scopedServices['{$scope}'])) {
            throw new InactiveScopeException('{$id}', '{$scope}');
        }


EOF;
        }
        if ($definition->isSynthetic()) {
            $code .= sprintf("        throw new RuntimeException('You have requested a synthetic service (\"%s\"). The DIC does not know how to construct this service.');\n    }\n", $id);
        } else {
            $code .= $this->addServiceInclude($id, $definition) . $this->addServiceLocalTempVariables($id, $definition) . $this->addServiceInlinedDefinitions($id, $definition) . $this->addServiceInstance($id, $definition) . $this->addServiceInlinedDefinitionsSetup($id, $definition) . $this->addServiceMethodCalls($id, $definition) . $this->addServiceProperties($id, $definition) . $this->addServiceConfigurator($id, $definition) . $this->addServiceReturn($id, $definition);
        }
        $this->definitionVariables = null;
        $this->referenceVariables = null;
        return $code;
    }