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[JsonStreamer] Rename the component
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‎.gitattributes‎

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/Tests export-ignore
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/phpunit.xml.dist export-ignore
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/.gitattributes export-ignore
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/.gitignore export-ignore

‎.gitignore‎

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vendor/
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composer.lock
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phpunit.xml

‎Attribute/JsonStreamable.php‎

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<?php
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/*
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* This file is part of the Symfony package.
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*
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* (c) Fabien Potencier <fabien@symfony.com>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespace Symfony\Component\JsonStreamer\Attribute;
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/**
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* @author Mathias Arlaud <mathias.arlaud@gmail.com>
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*
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* @experimental
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*/
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#[\Attribute(\Attribute::TARGET_CLASS)]
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final class JsonStreamable
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{
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public function __construct(
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public bool $asObject = true,
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public bool $asList = true,
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) {
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}
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}

‎Attribute/StreamedName.php‎

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<?php
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/*
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* This file is part of the Symfony package.
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*
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* (c) Fabien Potencier <fabien@symfony.com>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespace Symfony\Component\JsonStreamer\Attribute;
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/**
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* Defines the streamed property name.
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*
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* @author Mathias Arlaud <mathias.arlaud@gmail.com>
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*
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* @experimental
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*/
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#[\Attribute(\Attribute::TARGET_PROPERTY)]
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final class StreamedName
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{
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public function __construct(
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private string $name,
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) {
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}
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public function getName(): string
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{
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return $this->name;
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}
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}

‎Attribute/ValueTransformer.php‎

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<?php
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/*
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* This file is part of the Symfony package.
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*
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* (c) Fabien Potencier <fabien@symfony.com>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespace Symfony\Component\JsonStreamer\Attribute;
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use Symfony\Component\JsonStreamer\Exception\LogicException;
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/**
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* Defines a callable or a {@see \Symfony\Component\JsonStreamer\ValueTransformer\ValueTransformerInterface} service id
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* that will be used to transform the property data during stream reading/writing.
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*
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* @author Mathias Arlaud <mathias.arlaud@gmail.com>
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*
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* @experimental
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*/
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#[\Attribute(\Attribute::TARGET_PROPERTY)]
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class ValueTransformer
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{
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private \Closure|string|null $streamToNative;
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private \Closure|string|null $nativeToStream;
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/**
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* @param (callable(mixed, array<string, mixed>=): mixed)|string|null $streamToNative
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* @param (callable(mixed, array<string, mixed>=): mixed)|string|null $nativeToStream
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*/
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public function __construct(
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callable|string|null $streamToNative = null,
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callable|string|null $nativeToStream = null,
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) {
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if (!$streamToNative && !$nativeToStream) {
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throw new LogicException('#[ValueTransformer] attribute must declare either $streamToNative or $nativeToStream.');
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}
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if (\is_callable($streamToNative)) {
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$streamToNative = $streamToNative(...);
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}
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if (\is_callable($nativeToStream)) {
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$nativeToStream = $nativeToStream(...);
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}
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$this->streamToNative = $streamToNative;
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$this->nativeToStream = $nativeToStream;
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}
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public function getStreamToNative(): string|\Closure|null
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{
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return $this->streamToNative;
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}
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public function getNativeToStream(): string|\Closure|null
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{
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return $this->nativeToStream;
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}
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}

‎CHANGELOG.md‎

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CHANGELOG
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=========
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7.3
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---
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* Introduce the component as experimental

‎CacheWarmer/LazyGhostCacheWarmer.php‎

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<?php
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/*
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* This file is part of the Symfony package.
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*
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* (c) Fabien Potencier <fabien@symfony.com>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespace Symfony\Component\JsonStreamer\CacheWarmer;
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use Symfony\Component\Filesystem\Filesystem;
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use Symfony\Component\HttpKernel\CacheWarmer\CacheWarmer;
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use Symfony\Component\JsonStreamer\Exception\RuntimeException;
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use Symfony\Component\VarExporter\ProxyHelper;
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/**
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* Generates lazy ghost {@see \Symfony\Component\VarExporter\LazyGhostTrait}
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* PHP files for $streamable types.
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*
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* @author Mathias Arlaud <mathias.arlaud@gmail.com>
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*
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* @internal
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*/
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final class LazyGhostCacheWarmer extends CacheWarmer
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{
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private Filesystem $fs;
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/**
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* @param iterable<class-string> $streamableClassNames
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*/
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public function __construct(
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private iterable $streamableClassNames,
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private string $lazyGhostsDir,
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) {
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$this->fs = new Filesystem();
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}
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public function warmUp(string $cacheDir, ?string $buildDir = null): array
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{
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if (!$this->fs->exists($this->lazyGhostsDir)) {
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$this->fs->mkdir($this->lazyGhostsDir);
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}
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foreach ($this->streamableClassNames as $className) {
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$this->warmClassLazyGhost($className);
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}
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return [];
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}
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public function isOptional(): bool
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{
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return true;
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}
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/**
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* @param class-string $className
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*/
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private function warmClassLazyGhost(string $className): void
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{
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$path = \sprintf('%s%s%s.php', $this->lazyGhostsDir, \DIRECTORY_SEPARATOR, hash('xxh128', $className));
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try {
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$classReflection = new \ReflectionClass($className);
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} catch (\ReflectionException $e) {
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throw new RuntimeException($e->getMessage(), $e->getCode(), $e);
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}
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$this->writeCacheFile($path, \sprintf(
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'class %s%s',
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\sprintf('%sGhost', preg_replace('/\\\\/', '', $className)),
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ProxyHelper::generateLazyGhost($classReflection),
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));
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}
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}

‎CacheWarmer/StreamerCacheWarmer.php‎

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<?php
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/*
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* This file is part of the Symfony package.
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*
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* (c) Fabien Potencier <fabien@symfony.com>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespace Symfony\Component\JsonStreamer\CacheWarmer;
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use Psr\Log\LoggerInterface;
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use Psr\Log\NullLogger;
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use Symfony\Component\HttpKernel\CacheWarmer\CacheWarmerInterface;
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use Symfony\Component\JsonStreamer\Exception\ExceptionInterface;
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use Symfony\Component\JsonStreamer\Mapping\PropertyMetadataLoaderInterface;
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use Symfony\Component\JsonStreamer\Read\StreamReaderGenerator;
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use Symfony\Component\JsonStreamer\Write\StreamWriterGenerator;
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use Symfony\Component\TypeInfo\Type;
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/**
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* Generates stream readers and stream writers PHP files.
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*
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* @author Mathias Arlaud <mathias.arlaud@gmail.com>
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*
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* @internal
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*/
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final class StreamerCacheWarmer implements CacheWarmerInterface
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{
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private StreamWriterGenerator $streamWriterGenerator;
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private StreamReaderGenerator $streamReaderGenerator;
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/**
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* @param iterable<class-string, array{object: bool, list: bool}> $streamable
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*/
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public function __construct(
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private iterable $streamable,
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PropertyMetadataLoaderInterface $streamWriterPropertyMetadataLoader,
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PropertyMetadataLoaderInterface $streamReaderPropertyMetadataLoader,
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string $streamWritersDir,
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string $streamReadersDir,
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private LoggerInterface $logger = new NullLogger(),
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) {
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$this->streamWriterGenerator = new StreamWriterGenerator($streamWriterPropertyMetadataLoader, $streamWritersDir);
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$this->streamReaderGenerator = new StreamReaderGenerator($streamReaderPropertyMetadataLoader, $streamReadersDir);
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}
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public function warmUp(string $cacheDir, ?string $buildDir = null): array
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{
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foreach ($this->streamable as $className => $streamable) {
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if ($streamable['object']) {
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$type = Type::object($className);
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$this->warmUpStreamWriter($type);
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$this->warmUpStreamReaders($type);
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}
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if ($streamable['list']) {
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$type = Type::list(Type::object($className));
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$this->warmUpStreamWriter($type);
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$this->warmUpStreamReaders($type);
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}
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}
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return [];
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}
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public function isOptional(): bool
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{
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return true;
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}
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private function warmUpStreamWriter(Type $type): void
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{
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try {
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$this->streamWriterGenerator->generate($type);
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} catch (ExceptionInterface $e) {
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$this->logger->debug('Cannot generate "json" stream writer for "{type}": {exception}', ['type' => (string) $type, 'exception' => $e]);
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}
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}
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private function warmUpStreamReaders(Type $type): void
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{
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try {
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$this->streamReaderGenerator->generate($type, false);
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} catch (ExceptionInterface $e) {
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$this->logger->debug('Cannot generate "json" string stream reader for "{type}": {exception}', ['type' => (string) $type, 'exception' => $e]);
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}
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try {
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$this->streamReaderGenerator->generate($type, true);
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} catch (ExceptionInterface $e) {
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$this->logger->debug('Cannot generate "json" resource stream reader for "{type}": {exception}', ['type' => (string) $type, 'exception' => $e]);
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}
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}
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}

‎DataModel/DataAccessorInterface.php‎

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<?php
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/*
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* This file is part of the Symfony package.
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*
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* (c) Fabien Potencier <fabien@symfony.com>
7+
*
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* For the full copyright and license information, please view the LICENSE
9+
* file that was distributed with this source code.
10+
*/
11+
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namespace Symfony\Component\JsonStreamer\DataModel;
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use PhpParser\Node\Expr;
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/**
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* Represents a way to access data on PHP.
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*
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* @author Mathias Arlaud <mathias.arlaud@gmail.com>
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*
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* @internal
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*/
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interface DataAccessorInterface
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{
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/**
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* Converts to "nikic/php-parser" PHP expression.
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*/
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public function toPhpExpr(): Expr;
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}

‎DataModel/FunctionDataAccessor.php‎

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<?php
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/*
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* This file is part of the Symfony package.
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*
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* (c) Fabien Potencier <fabien@symfony.com>
7+
*
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* For the full copyright and license information, please view the LICENSE
9+
* file that was distributed with this source code.
10+
*/
11+
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namespace Symfony\Component\JsonStreamer\DataModel;
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use PhpParser\BuilderFactory;
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use PhpParser\Node\Expr;
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/**
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* Defines the way to access data using a function (or a method).
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*
20+
* @author Mathias Arlaud <mathias.arlaud@gmail.com>
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*
22+
* @internal
23+
*/
24+
final class FunctionDataAccessor implements DataAccessorInterface
25+
{
26+
/**
27+
* @param list<DataAccessorInterface> $arguments
28+
*/
29+
public function __construct(
30+
private string $functionName,
31+
private array $arguments,
32+
private ?DataAccessorInterface $objectAccessor = null,
33+
) {
34+
}
35+
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public function toPhpExpr(): Expr
37+
{
38+
$builder = new BuilderFactory();
39+
$arguments = array_map(static fn (DataAccessorInterface $argument): Expr => $argument->toPhpExpr(), $this->arguments);
40+
41+
if (null === $this->objectAccessor) {
42+
return $builder->funcCall($this->functionName, $arguments);
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}
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return $builder->methodCall($this->objectAccessor->toPhpExpr(), $this->functionName, $arguments);
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}
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}

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