LazyServiceDumper example

throw new EnvParameterException($unusedEnvs, null, 'Environment variables "%s" are never used. Please, check your container\'s configuration.');
        }

        return $code;
    }

    /** * Retrieves the currently set proxy dumper or instantiates one. */
    private function getProxyDumper(): DumperInterface
    {
        return $this->proxyDumper ??= new LazyServiceDumper($this->class);
    }

    private function analyzeReferences(): void
    {
        (new AnalyzeServiceReferencesPass(false, $this->hasProxyDumper))->process($this->container);
        $checkedNodes = [];
        $this->circularReferences = [];
        $this->singleUsePrivateIds = [];
        foreach ($this->container->getCompiler()->getServiceReferenceGraph()->getNodes() as $id => $node) {
            if (!$node->getValue() instanceof Definition) {
                continue;
            }

throw new EnvParameterException($unusedEnvs, null, 'Environment variables "%s" are never used. Please, check your container\'s configuration.');
        }

        return $code;
    }

    /** * Retrieves the currently set proxy dumper or instantiates one. */
    private function getProxyDumper(): DumperInterface
    {
        return $this->proxyDumper ??= new LazyServiceDumper($this->class);
    }

    private function analyzeReferences(): void
    {
        (new AnalyzeServiceReferencesPass(false, $this->hasProxyDumper))->process($this->container);
        $checkedNodes = [];
        $this->circularReferences = [];
        $this->singleUsePrivateIds = [];
        foreach ($this->container->getCompiler()->getServiceReferenceGraph()->getNodes() as $id => $node) {
            if (!$node->getValue() instanceof Definition) {
                continue;
            }

use Symfony\Component\DependencyInjection\Definition;
use Symfony\Component\DependencyInjection\Exception\InvalidArgumentException;
use Symfony\Component\DependencyInjection\LazyProxy\PhpDumper\LazyServiceDumper;

/** * @author Nicolas Grekas <p@tchwork.com> */
final class LazyServiceInstantiator implements InstantiatorInterface
{
    public function instantiateProxy(ContainerInterface $container, Definition $definition, string $id, callable $realInstantiator): object
    {
        $dumper = new LazyServiceDumper();

        if (!$dumper->isProxyCandidate($definition, $asGhostObject, $id)) {
            throw new InvalidArgumentException(sprintf('Cannot instantiate lazy proxy for service "%s".', $id));
        }

        if (!class_exists($proxyClass = $dumper->getProxyClass($definition, $asGhostObject), false)) {
            eval($dumper->getProxyCode($definition, $id));
        }

        return $asGhostObject ? $proxyClass::createLazyGhost($realInstantiator) : $proxyClass::createLazyProxy($realInstantiator);
    }
}

use Symfony\Component\DependencyInjection\Definition;
use Symfony\Component\DependencyInjection\Exception\InvalidArgumentException;
use Symfony\Component\DependencyInjection\LazyProxy\PhpDumper\LazyServiceDumper;

/** * @author Nicolas Grekas <p@tchwork.com> */
final class LazyServiceInstantiator implements InstantiatorInterface
{
    public function instantiateProxy(ContainerInterface $container, Definition $definition, string $id, callable $realInstantiator): object
    {
        $dumper = new LazyServiceDumper();

        if (!$dumper->isProxyCandidate($definition, $asGhostObject, $id)) {
            throw new InvalidArgumentException(sprintf('Cannot instantiate lazy proxy for service "%s".', $id));
        }

        if (!class_exists($proxyClass = $dumper->getProxyClass($definition, $asGhostObject), false)) {
            eval($dumper->getProxyCode($definition, $id));
        }

        return $asGhostObject ? $proxyClass::createLazyGhost($realInstantiator) : $proxyClass::createLazyProxy($realInstantiator);
    }
}

use PHPUnit\Framework\TestCase;
use Psr\Container\ContainerInterface;
use Symfony\Component\DependencyInjection\Definition;
use Symfony\Component\DependencyInjection\Exception\InvalidArgumentException;
use Symfony\Component\DependencyInjection\LazyProxy\PhpDumper\LazyServiceDumper;

class LazyServiceDumperTest extends TestCase
{
    public function testProxyInterface()
    {
        $dumper = new LazyServiceDumper();
        $definition = (new Definition(ContainerInterface::class))->setLazy(true);

        $this->assertTrue($dumper->isProxyCandidate($definition));
        $this->assertStringContainsString('function get(', $dumper->getProxyCode($definition));
    }

    public function testFinalClassInterface()
    {
        $dumper = new LazyServiceDumper();
        $definition = (new Definition(TestContainer::class))
            ->setLazy(true)