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isProxyCandidate example

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);
    }
}

    private function generateProxyClasses(): array
    {
        $proxyClasses = [];
        $alreadyGenerated = [];
        $definitions = $this->container->getDefinitions();
        $strip = '' === $this->docStar && method_exists(Kernel::class, 'stripComments');
        $proxyDumper = $this->getProxyDumper();
        ksort($definitions);
        foreach ($definitions as $id => $definition) {
            if (!$definition = $this->isProxyCandidate($definition, $asGhostObject, $id)) {
                continue;
            }
            if (isset($alreadyGenerated[$asGhostObject][$class = $definition->getClass()])) {
                continue;
            }
            $alreadyGenerated[$asGhostObject][$class] = true;

            foreach (array_column($definition->getTag('proxy'), 'interface') ?: [$class] as $r) {
                if (!$r = $this->container->getReflectionClass($r)) {
                    continue;
                }

    private function generateProxyClasses(): array
    {
        $proxyClasses = [];
        $alreadyGenerated = [];
        $definitions = $this->container->getDefinitions();
        $strip = '' === $this->docStar;
        $proxyDumper = $this->getProxyDumper();
        ksort($definitions);
        foreach ($definitions as $id => $definition) {
            if (!$definition = $this->isProxyCandidate($definition, $asGhostObject, $id)) {
                continue;
            }
            if (isset($alreadyGenerated[$asGhostObject][$class = $definition->getClass()])) {
                continue;
            }
            $alreadyGenerated[$asGhostObject][$class] = true;

            foreach (array_column($definition->getTag('proxy'), 'interface') ?: [$class] as $r) {
                if (!$r = $this->container->getReflectionClass($r)) {
                    continue;
                }

class NullDumperTest extends TestCase
{
    public function testNullDumper()
    {
        $dumper = new NullDumper();
        $definition = new Definition('stdClass');

        $this->assertFalse($dumper->isProxyCandidate($definition));
        $this->assertSame('', $dumper->getProxyFactoryCode($definition, 'foo', '(false)'));
        $this->assertSame('', $dumper->getProxyCode($definition));
    }
}

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)
            ->addTag('proxy', ['interface' => ContainerInterface::class]);

        $this->assertTrue($dumper->isProxyCandidate($definition));

return <<<EOF if (true === \$lazyLoad) { $instantiation \$container->createProxy('$proxyClass', static fn () => \\$proxyClass::createLazyGhost($factoryCode)); } EOF;
    }

    public function getProxyCode(Definition $definition, string $id = null): string
    {
        if (!$this->isProxyCandidate($definition, $asGhostObject, $id)) {
            throw new InvalidArgumentException(sprintf('Cannot instantiate lazy proxy for service "%s".', $id ?? $definition->getClass()));
        }
        $proxyClass = $this->getProxyClass($definition, $asGhostObject, $class);

        if ($asGhostObject) {
            try {
                return 'class '.$proxyClass.ProxyHelper::generateLazyGhost($class);
            } catch (LogicException $e) {
                throw new InvalidArgumentException(sprintf('Cannot generate lazy ghost for service "%s".', $id ?? $definition->getClass()), 0, $e);
            }
        }

protected function setUp(): void
    {
        $this->dumper = new ProxyDumper();
    }

    /** * @dataProvider getProxyCandidates */
    public function testIsProxyCandidate(Definition $definition, bool $expected)
    {
        $this->assertSame($expected, $this->dumper->isProxyCandidate($definition));
    }

    public function testGetProxyCode()
    {
        $definition = new Definition(__CLASS__);

        $definition->setLazy(true);

        $code = $this->dumper->getProxyCode($definition);

        $this->assertStringMatchesFormat(

    private function generateProxyClasses(): array
    {
        $proxyClasses = [];
        $alreadyGenerated = [];
        $definitions = $this->container->getDefinitions();
        $strip = '' === $this->docStar && method_exists(Kernel::class, 'stripComments');
        $proxyDumper = $this->getProxyDumper();
        ksort($definitions);
        foreach ($definitions as $definition) {
            if (!$proxyDumper->isProxyCandidate($definition)) {
                continue;
            }
            if (isset($alreadyGenerated[$class = $definition->getClass()])) {
                continue;
            }
            $alreadyGenerated[$class] = true;
            // register class' reflector for resource tracking             $this->container->getReflectionClass($class);
            if ("\n" === $proxyCode = "\n".$proxyDumper->getProxyCode($definition)) {
                continue;
            }