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PhpDumper.php
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PhpDumper.php
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<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\DependencyInjection\Dumper;
use Symfony\Component\DependencyInjection\Argument\ArgumentInterface;
use Symfony\Component\DependencyInjection\Argument\IteratorArgument;
use Symfony\Component\DependencyInjection\Argument\ServiceClosureArgument;
use Symfony\Component\DependencyInjection\Compiler\AnalyzeServiceReferencesPass;
use Symfony\Component\DependencyInjection\Compiler\CheckCircularReferencesPass;
use Symfony\Component\DependencyInjection\Container;
use Symfony\Component\DependencyInjection\ContainerBuilder;
use Symfony\Component\DependencyInjection\ContainerInterface;
use Symfony\Component\DependencyInjection\Definition;
use Symfony\Component\DependencyInjection\Exception\EnvParameterException;
use Symfony\Component\DependencyInjection\Exception\InvalidArgumentException;
use Symfony\Component\DependencyInjection\Exception\RuntimeException;
use Symfony\Component\DependencyInjection\Exception\ServiceCircularReferenceException;
use Symfony\Component\DependencyInjection\ExpressionLanguage;
use Symfony\Component\DependencyInjection\LazyProxy\PhpDumper\DumperInterface as ProxyDumper;
use Symfony\Component\DependencyInjection\LazyProxy\PhpDumper\NullDumper;
use Symfony\Component\DependencyInjection\Parameter;
use Symfony\Component\DependencyInjection\Reference;
use Symfony\Component\DependencyInjection\TypedReference;
use Symfony\Component\DependencyInjection\Variable;
use Symfony\Component\ExpressionLanguage\Expression;
use Symfony\Component\HttpKernel\Kernel;
/**
* PhpDumper dumps a service container as a PHP class.
*
* @author Fabien Potencier <fabien@symfony.com>
* @author Johannes M. Schmitt <schmittjoh@gmail.com>
*/
class PhpDumper extends Dumper
{
/**
* Characters that might appear in the generated variable name as first character.
*/
const FIRST_CHARS = 'abcdefghijklmnopqrstuvwxyz';
/**
* Characters that might appear in the generated variable name as any but the first character.
*/
const NON_FIRST_CHARS = 'abcdefghijklmnopqrstuvwxyz0123456789_';
private $definitionVariables;
private $referenceVariables;
private $variableCount;
private $inlinedDefinitions;
private $serviceCalls;
private $reservedVariables = ['instance', 'class', 'this'];
private $expressionLanguage;
private $targetDirRegex;
private $targetDirMaxMatches;
private $docStar;
private $serviceIdToMethodNameMap;
private $usedMethodNames;
private $namespace;
private $asFiles;
private $hotPathTag;
private $inlineRequires;
private $inlinedRequires = [];
private $circularReferences = [];
/**
* @var ProxyDumper
*/
private $proxyDumper;
/**
* {@inheritdoc}
*/
public function __construct(ContainerBuilder $container)
{
if (!$container->isCompiled()) {
@trigger_error('Dumping an uncompiled ContainerBuilder is deprecated since Symfony 3.3 and will not be supported anymore in 4.0. Compile the container beforehand.', E_USER_DEPRECATED);
}
parent::__construct($container);
}
/**
* Sets the dumper to be used when dumping proxies in the generated container.
*/
public function setProxyDumper(ProxyDumper $proxyDumper)
{
$this->proxyDumper = $proxyDumper;
}
/**
* Dumps the service container as a PHP class.
*
* Available options:
*
* * class: The class name
* * base_class: The base class name
* * namespace: The class namespace
* * as_files: To split the container in several files
*
* @return string|array A PHP class representing the service container or an array of PHP files if the "as_files" option is set
*
* @throws EnvParameterException When an env var exists but has not been dumped
*/
public function dump(array $options = [])
{
$this->targetDirRegex = null;
$this->inlinedRequires = [];
$options = array_merge([
'class' => 'ProjectServiceContainer',
'base_class' => 'Container',
'namespace' => '',
'as_files' => false,
'debug' => true,
'hot_path_tag' => 'container.hot_path',
'inline_class_loader_parameter' => 'container.dumper.inline_class_loader',
'build_time' => time(),
], $options);
$this->namespace = $options['namespace'];
$this->asFiles = $options['as_files'];
$this->hotPathTag = $options['hot_path_tag'];
$this->inlineRequires = $options['inline_class_loader_parameter'] && $this->container->hasParameter($options['inline_class_loader_parameter']) && $this->container->getParameter($options['inline_class_loader_parameter']);
if (0 !== strpos($baseClass = $options['base_class'], '\\') && 'Container' !== $baseClass) {
$baseClass = sprintf('%s\%s', $options['namespace'] ? '\\'.$options['namespace'] : '', $baseClass);
$baseClassWithNamespace = $baseClass;
} elseif ('Container' === $baseClass) {
$baseClassWithNamespace = Container::class;
} else {
$baseClassWithNamespace = $baseClass;
}
$this->initializeMethodNamesMap('Container' === $baseClass ? Container::class : $baseClass);
if ($this->getProxyDumper() instanceof NullDumper) {
(new AnalyzeServiceReferencesPass(true, false))->process($this->container);
try {
(new CheckCircularReferencesPass())->process($this->container);
} catch (ServiceCircularReferenceException $e) {
$path = $e->getPath();
end($path);
$path[key($path)] .= '". Try running "composer require symfony/proxy-manager-bridge';
throw new ServiceCircularReferenceException($e->getServiceId(), $path);
}
}
(new AnalyzeServiceReferencesPass(false, !$this->getProxyDumper() instanceof NullDumper))->process($this->container);
$checkedNodes = [];
$this->circularReferences = [];
foreach ($this->container->getCompiler()->getServiceReferenceGraph()->getNodes() as $id => $node) {
if (!$node->getValue() instanceof Definition) {
continue;
}
if (!isset($checkedNodes[$id])) {
$this->analyzeCircularReferences($id, $node->getOutEdges(), $checkedNodes);
}
}
$this->container->getCompiler()->getServiceReferenceGraph()->clear();
$checkedNodes = [];
$this->docStar = $options['debug'] ? '*' : '';
if (!empty($options['file']) && is_dir($dir = \dirname($options['file']))) {
// Build a regexp where the first root dirs are mandatory,
// but every other sub-dir is optional up to the full path in $dir
// Mandate at least 2 root dirs and not more that 5 optional dirs.
$dir = explode(\DIRECTORY_SEPARATOR, realpath($dir));
$i = \count($dir);
if (3 <= $i) {
$regex = '';
$lastOptionalDir = $i > 8 ? $i - 5 : 3;
$this->targetDirMaxMatches = $i - $lastOptionalDir;
while (--$i >= $lastOptionalDir) {
$regex = sprintf('(%s%s)?', preg_quote(\DIRECTORY_SEPARATOR.$dir[$i], '#'), $regex);
}
do {
$regex = preg_quote(\DIRECTORY_SEPARATOR.$dir[$i], '#').$regex;
} while (0 < --$i);
$this->targetDirRegex = '#'.preg_quote($dir[0], '#').$regex.'#';
}
}
$code =
$this->startClass($options['class'], $baseClass, $baseClassWithNamespace).
$this->addServices().
$this->addDefaultParametersMethod().
$this->endClass()
;
if ($this->asFiles) {
$fileStart = <<<EOF
<?php
use Symfony\Component\DependencyInjection\Argument\RewindableGenerator;
// This file has been auto-generated by the Symfony Dependency Injection Component for internal use.
EOF;
$files = [];
if ($ids = array_keys($this->container->getRemovedIds())) {
sort($ids);
$c = "<?php\n\nreturn [\n";
foreach ($ids as $id) {
$c .= ' '.$this->doExport($id)." => true,\n";
}
$files['removed-ids.php'] = $c .= "];\n";
}
foreach ($this->generateServiceFiles() as $file => $c) {
$files[$file] = $fileStart.$c;
}
foreach ($this->generateProxyClasses() as $file => $c) {
$files[$file] = "<?php\n".$c;
}
$files[$options['class'].'.php'] = $code;
$hash = ucfirst(strtr(ContainerBuilder::hash($files), '._', 'xx'));
$code = [];
foreach ($files as $file => $c) {
$code["Container{$hash}/{$file}"] = $c;
}
array_pop($code);
$code["Container{$hash}/{$options['class']}.php"] = substr_replace($files[$options['class'].'.php'], "<?php\n\nnamespace Container{$hash};\n", 0, 6);
$namespaceLine = $this->namespace ? "\nnamespace {$this->namespace};\n" : '';
$time = $options['build_time'];
$id = hash('crc32', $hash.$time);
$code[$options['class'].'.php'] = <<<EOF
<?php
{$namespaceLine}
// This file has been auto-generated by the Symfony Dependency Injection Component for internal use.
if (\\class_exists(\\Container{$hash}\\{$options['class']}::class, false)) {
// no-op
} elseif (!include __DIR__.'/Container{$hash}/{$options['class']}.php') {
touch(__DIR__.'/Container{$hash}.legacy');
return;
}
if (!\\class_exists({$options['class']}::class, false)) {
\\class_alias(\\Container{$hash}\\{$options['class']}::class, {$options['class']}::class, false);
}
return new \\Container{$hash}\\{$options['class']}([
'container.build_hash' => '$hash',
'container.build_id' => '$id',
'container.build_time' => $time,
], __DIR__.\\DIRECTORY_SEPARATOR.'Container{$hash}');
EOF;
} else {
foreach ($this->generateProxyClasses() as $c) {
$code .= $c;
}
}
$this->targetDirRegex = null;
$this->inlinedRequires = [];
$this->circularReferences = [];
$unusedEnvs = [];
foreach ($this->container->getEnvCounters() as $env => $use) {
if (!$use) {
$unusedEnvs[] = $env;
}
}
if ($unusedEnvs) {
throw new EnvParameterException($unusedEnvs, null, 'Environment variables "%s" are never used. Please, check your container\'s configuration.');
}
return $code;
}
/**
* Retrieves the currently set proxy dumper or instantiates one.
*
* @return ProxyDumper
*/
private function getProxyDumper()
{
if (!$this->proxyDumper) {
$this->proxyDumper = new NullDumper();
}
return $this->proxyDumper;
}
private function analyzeCircularReferences($sourceId, array $edges, &$checkedNodes, &$currentPath = [], $byConstructor = true)
{
$checkedNodes[$sourceId] = true;
$currentPath[$sourceId] = $byConstructor;
foreach ($edges as $edge) {
$node = $edge->getDestNode();
$id = $node->getId();
if (!$node->getValue() instanceof Definition || $sourceId === $id || $edge->isLazy() || $edge->isWeak()) {
// no-op
} elseif (isset($currentPath[$id])) {
$this->addCircularReferences($id, $currentPath, $edge->isReferencedByConstructor());
} elseif (!isset($checkedNodes[$id])) {
$this->analyzeCircularReferences($id, $node->getOutEdges(), $checkedNodes, $currentPath, $edge->isReferencedByConstructor());
} elseif (isset($this->circularReferences[$id])) {
$this->connectCircularReferences($id, $currentPath, $edge->isReferencedByConstructor());
}
}
unset($currentPath[$sourceId]);
}
private function connectCircularReferences($sourceId, &$currentPath, $byConstructor, &$subPath = [])
{
$currentPath[$sourceId] = $subPath[$sourceId] = $byConstructor;
foreach ($this->circularReferences[$sourceId] as $id => $byConstructor) {
if (isset($currentPath[$id])) {
$this->addCircularReferences($id, $currentPath, $byConstructor);
} elseif (!isset($subPath[$id]) && isset($this->circularReferences[$id])) {
$this->connectCircularReferences($id, $currentPath, $byConstructor, $subPath);
}
}
unset($currentPath[$sourceId], $subPath[$sourceId]);
}
private function addCircularReferences($id, $currentPath, $byConstructor)
{
$currentPath[$id] = $byConstructor;
$circularRefs = [];
foreach (array_reverse($currentPath) as $parentId => $v) {
$byConstructor = $byConstructor && $v;
$circularRefs[] = $parentId;
if ($parentId === $id) {
break;
}
}
$currentId = $id;
foreach ($circularRefs as $parentId) {
if (empty($this->circularReferences[$parentId][$currentId])) {
$this->circularReferences[$parentId][$currentId] = $byConstructor;
}
$currentId = $parentId;
}
}
private function collectLineage($class, array &$lineage)
{
if (isset($lineage[$class])) {
return;
}
if (!$r = $this->container->getReflectionClass($class, false)) {
return;
}
if ($this->container instanceof $class) {
return;
}
$file = $r->getFileName();
if (!$file || $this->doExport($file) === $exportedFile = $this->export($file)) {
return;
}
if ($parent = $r->getParentClass()) {
$this->collectLineage($parent->name, $lineage);
}
foreach ($r->getInterfaces() as $parent) {
$this->collectLineage($parent->name, $lineage);
}
foreach ($r->getTraits() as $parent) {
$this->collectLineage($parent->name, $lineage);
}
$lineage[$class] = substr($exportedFile, 1, -1);
}
private function generateProxyClasses()
{
$alreadyGenerated = [];
$definitions = $this->container->getDefinitions();
$strip = '' === $this->docStar && method_exists('Symfony\Component\HttpKernel\Kernel', '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($definition)) {
continue;
}
if ($strip) {
$proxyCode = "<?php\n".$proxyCode;
$proxyCode = substr(Kernel::stripComments($proxyCode), 5);
}
yield sprintf('%s.php', explode(' ', $proxyCode, 3)[1]) => $proxyCode;
}
}
/**
* Generates the require_once statement for service includes.
*
* @return string
*/
private function addServiceInclude($cId, Definition $definition)
{
$code = '';
if ($this->inlineRequires && !$this->isHotPath($definition)) {
$lineage = [];
foreach ($this->inlinedDefinitions as $def) {
if (!$def->isDeprecated() && \is_string($class = \is_array($factory = $def->getFactory()) && \is_string($factory[0]) ? $factory[0] : $def->getClass())) {
$this->collectLineage($class, $lineage);
}
}
foreach ($this->serviceCalls as $id => list($callCount, $behavior)) {
if ('service_container' !== $id && $id !== $cId
&& ContainerInterface::IGNORE_ON_UNINITIALIZED_REFERENCE !== $behavior
&& $this->container->has($id)
&& $this->isTrivialInstance($def = $this->container->findDefinition($id))
&& \is_string($class = \is_array($factory = $def->getFactory()) && \is_string($factory[0]) ? $factory[0] : $def->getClass())
) {
$this->collectLineage($class, $lineage);
}
}
foreach (array_diff_key(array_flip($lineage), $this->inlinedRequires) as $file => $class) {
$code .= sprintf(" include_once %s;\n", $file);
}
}
foreach ($this->inlinedDefinitions as $def) {
if ($file = $def->getFile()) {
$code .= sprintf(" include_once %s;\n", $this->dumpValue($file));
}
}
if ('' !== $code) {
$code .= "\n";
}
return $code;
}
/**
* Generates the service instance.
*
* @param string $id
* @param Definition $definition
* @param bool $isSimpleInstance
*
* @return string
*
* @throws InvalidArgumentException
* @throws RuntimeException
*/
private function addServiceInstance($id, Definition $definition, $isSimpleInstance)
{
$class = $this->dumpValue($definition->getClass());
if (0 === strpos($class, "'") && false === strpos($class, '$') && !preg_match('/^\'(?:\\\{2})?[a-zA-Z_\x7f-\xff][a-zA-Z0-9_\x7f-\xff]*(?:\\\{2}[a-zA-Z_\x7f-\xff][a-zA-Z0-9_\x7f-\xff]*)*\'$/', $class)) {
throw new InvalidArgumentException(sprintf('"%s" is not a valid class name for the "%s" service.', $class, $id));
}
$isProxyCandidate = $this->getProxyDumper()->isProxyCandidate($definition);
$instantiation = '';
if (!$isProxyCandidate && $definition->isShared()) {
$instantiation = sprintf('$this->services[%s] = %s', $this->doExport($id), $isSimpleInstance ? '' : '$instance');
} elseif (!$isSimpleInstance) {
$instantiation = '$instance';
}
$return = '';
if ($isSimpleInstance) {
$return = 'return ';
} else {
$instantiation .= ' = ';
}
return $this->addNewInstance($definition, $return, $instantiation, $id);
}
/**
* Checks if the definition is a trivial instance.
*
* @param Definition $definition
*
* @return bool
*/
private function isTrivialInstance(Definition $definition)
{
if ($definition->isSynthetic() || $definition->getFile() || $definition->getMethodCalls() || $definition->getProperties() || $definition->getConfigurator()) {
return false;
}
if ($definition->isDeprecated() || $definition->isLazy() || $definition->getFactory() || 3 < \count($definition->getArguments())) {
return false;
}
foreach ($definition->getArguments() as $arg) {
if (!$arg || $arg instanceof Parameter) {
continue;
}
if (\is_array($arg) && 3 >= \count($arg)) {
foreach ($arg as $k => $v) {
if ($this->dumpValue($k) !== $this->dumpValue($k, false)) {
return false;
}
if (!$v || $v instanceof Parameter) {
continue;
}
if ($v instanceof Reference && $this->container->has($id = (string) $v) && $this->container->findDefinition($id)->isSynthetic()) {
continue;
}
if (!is_scalar($v) || $this->dumpValue($v) !== $this->dumpValue($v, false)) {
return false;
}
}
} elseif ($arg instanceof Reference && $this->container->has($id = (string) $arg) && $this->container->findDefinition($id)->isSynthetic()) {
continue;
} elseif (!is_scalar($arg) || $this->dumpValue($arg) !== $this->dumpValue($arg, false)) {
return false;
}
}
return true;
}
/**
* Adds method calls to a service definition.
*
* @param Definition $definition
* @param string $variableName
*
* @return string
*/
private function addServiceMethodCalls(Definition $definition, $variableName = 'instance')
{
$calls = '';
foreach ($definition->getMethodCalls() as $call) {
$arguments = [];
foreach ($call[1] as $value) {
$arguments[] = $this->dumpValue($value);
}
$calls .= $this->wrapServiceConditionals($call[1], sprintf(" \$%s->%s(%s);\n", $variableName, $call[0], implode(', ', $arguments)));
}
return $calls;
}
private function addServiceProperties(Definition $definition, $variableName = 'instance')
{
$code = '';
foreach ($definition->getProperties() as $name => $value) {
$code .= sprintf(" \$%s->%s = %s;\n", $variableName, $name, $this->dumpValue($value));
}
return $code;
}
/**
* Adds configurator definition.
*
* @param Definition $definition
* @param string $variableName
*
* @return string
*/
private function addServiceConfigurator(Definition $definition, $variableName = 'instance')
{
if (!$callable = $definition->getConfigurator()) {
return '';
}
if (\is_array($callable)) {
if ($callable[0] instanceof Reference
|| ($callable[0] instanceof Definition && $this->definitionVariables->contains($callable[0]))
) {
return sprintf(" %s->%s(\$%s);\n", $this->dumpValue($callable[0]), $callable[1], $variableName);
}
$class = $this->dumpValue($callable[0]);
// If the class is a string we can optimize call_user_func away
if (0 === strpos($class, "'") && false === strpos($class, '$')) {
return sprintf(" %s::%s(\$%s);\n", $this->dumpLiteralClass($class), $callable[1], $variableName);
}
if (0 === strpos($class, 'new ')) {
return sprintf(" (%s)->%s(\$%s);\n", $this->dumpValue($callable[0]), $callable[1], $variableName);
}
return sprintf(" \\call_user_func([%s, '%s'], \$%s);\n", $this->dumpValue($callable[0]), $callable[1], $variableName);
}
return sprintf(" %s(\$%s);\n", $callable, $variableName);
}
/**
* Adds a service.
*
* @param string $id
* @param Definition $definition
* @param string &$file
*
* @return string
*/
private function addService($id, Definition $definition, &$file = null)
{
$this->definitionVariables = new \SplObjectStorage();
$this->referenceVariables = [];
$this->variableCount = 0;
$this->referenceVariables[$id] = new Variable('instance');
$return = [];
if ($class = $definition->getClass()) {
$class = $class instanceof Parameter ? '%'.$class.'%' : $this->container->resolveEnvPlaceholders($class);
$return[] = sprintf(0 === strpos($class, '%') ? '@return object A %1$s instance' : '@return \%s', ltrim($class, '\\'));
} elseif ($definition->getFactory()) {
$factory = $definition->getFactory();
if (\is_string($factory)) {
$return[] = sprintf('@return object An instance returned by %s()', $factory);
} elseif (\is_array($factory) && (\is_string($factory[0]) || $factory[0] instanceof Definition || $factory[0] instanceof Reference)) {
$class = $factory[0] instanceof Definition ? $factory[0]->getClass() : (string) $factory[0];
$class = $class instanceof Parameter ? '%'.$class.'%' : $this->container->resolveEnvPlaceholders($class);
$return[] = sprintf('@return object An instance returned by %s::%s()', $class, $factory[1]);
}
}
if ($definition->isDeprecated()) {
if ($return && 0 === strpos($return[\count($return) - 1], '@return')) {
$return[] = '';
}
$return[] = sprintf('@deprecated %s', $definition->getDeprecationMessage($id));
}
$return = str_replace("\n * \n", "\n *\n", implode("\n * ", $return));
$return = $this->container->resolveEnvPlaceholders($return);
$shared = $definition->isShared() ? ' shared' : '';
$public = $definition->isPublic() ? 'public' : 'private';
$autowired = $definition->isAutowired() ? ' autowired' : '';
if ($definition->isLazy()) {
$lazyInitialization = '$lazyLoad = true';
} else {
$lazyInitialization = '';
}
$asFile = $this->asFiles && $definition->isShared() && !$this->isHotPath($definition);
$methodName = $this->generateMethodName($id);
if ($asFile) {
$file = $methodName.'.php';
$code = " // Returns the $public '$id'$shared$autowired service.\n\n";
} else {
$code = <<<EOF
/*{$this->docStar}
* Gets the $public '$id'$shared$autowired service.
*
* $return
EOF;
$code = str_replace('*/', ' ', $code).<<<EOF
*/
protected function {$methodName}($lazyInitialization)
{
EOF;
}
$this->serviceCalls = [];
$this->inlinedDefinitions = $this->getDefinitionsFromArguments([$definition], null, $this->serviceCalls);
$code .= $this->addServiceInclude($id, $definition);
if ($this->getProxyDumper()->isProxyCandidate($definition)) {
$factoryCode = $asFile ? "\$this->load('%s.php', false)" : '$this->%s(false)';
$code .= $this->getProxyDumper()->getProxyFactoryCode($definition, $id, sprintf($factoryCode, $methodName, $this->doExport($id)));
}
if ($definition->isDeprecated()) {
$code .= sprintf(" @trigger_error(%s, E_USER_DEPRECATED);\n\n", $this->export($definition->getDeprecationMessage($id)));
}
$code .= $this->addInlineService($id, $definition);
if ($asFile) {
$code = implode("\n", array_map(function ($line) { return $line ? substr($line, 8) : $line; }, explode("\n", $code)));
} else {
$code .= " }\n";
}
$this->definitionVariables = $this->inlinedDefinitions = null;
$this->referenceVariables = $this->serviceCalls = null;
return $code;
}
private function addInlineVariables($id, Definition $definition, array $arguments, $forConstructor)
{
$code = '';
foreach ($arguments as $argument) {
if (\is_array($argument)) {
$code .= $this->addInlineVariables($id, $definition, $argument, $forConstructor);
} elseif ($argument instanceof Reference) {
$code .= $this->addInlineReference($id, $definition, $this->container->normalizeId($argument), $forConstructor);
} elseif ($argument instanceof Definition) {
$code .= $this->addInlineService($id, $definition, $argument, $forConstructor);
}
}
return $code;
}
private function addInlineReference($id, Definition $definition, $targetId, $forConstructor)
{
while ($this->container->hasAlias($targetId)) {
$targetId = (string) $this->container->getAlias($targetId);
}
list($callCount, $behavior) = $this->serviceCalls[$targetId];
if ($id === $targetId) {
return $this->addInlineService($id, $definition, $definition);
}
if ('service_container' === $targetId || isset($this->referenceVariables[$targetId])) {
return '';
}
$hasSelfRef = isset($this->circularReferences[$id][$targetId]) && !isset($this->definitionVariables[$definition]);
if ($hasSelfRef && !$forConstructor && !$forConstructor = !$this->circularReferences[$id][$targetId]) {
$code = $this->addInlineService($id, $definition, $definition);
} else {
$code = '';
}
if (isset($this->referenceVariables[$targetId]) || (2 > $callCount && (!$hasSelfRef || !$forConstructor))) {
return $code;
}
$name = $this->getNextVariableName();
$this->referenceVariables[$targetId] = new Variable($name);
$reference = ContainerInterface::EXCEPTION_ON_INVALID_REFERENCE >= $behavior ? new Reference($targetId, $behavior) : null;
$code .= sprintf(" \$%s = %s;\n", $name, $this->getServiceCall($targetId, $reference));
if (!$hasSelfRef || !$forConstructor) {
return $code;
}
$code .= sprintf(<<<'EOTXT'
if (isset($this->%s[%s])) {
return $this->%1$s[%2$s];
}
EOTXT
,
'services',
$this->doExport($id)
);
return $code;
}
private function addInlineService($id, Definition $definition, Definition $inlineDef = null, $forConstructor = true)
{
$code = '';
if ($isSimpleInstance = $isRootInstance = null === $inlineDef) {
foreach ($this->serviceCalls as $targetId => list($callCount, $behavior, $byConstructor)) {
if ($byConstructor && isset($this->circularReferences[$id][$targetId]) && !$this->circularReferences[$id][$targetId]) {
$code .= $this->addInlineReference($id, $definition, $targetId, $forConstructor);
}
}
}
if (isset($this->definitionVariables[$inlineDef = $inlineDef ?: $definition])) {
return $code;
}
$arguments = [$inlineDef->getArguments(), $inlineDef->getFactory()];
$code .= $this->addInlineVariables($id, $definition, $arguments, $forConstructor);
if ($arguments = array_filter([$inlineDef->getProperties(), $inlineDef->getMethodCalls(), $inlineDef->getConfigurator()])) {
$isSimpleInstance = false;
} elseif ($definition !== $inlineDef && 2 > $this->inlinedDefinitions[$inlineDef]) {
return $code;
}
if (isset($this->definitionVariables[$inlineDef])) {
$isSimpleInstance = false;
} else {
$name = $definition === $inlineDef ? 'instance' : $this->getNextVariableName();
$this->definitionVariables[$inlineDef] = new Variable($name);
$code .= '' !== $code ? "\n" : '';
if ('instance' === $name) {
$code .= $this->addServiceInstance($id, $definition, $isSimpleInstance);
} else {
$code .= $this->addNewInstance($inlineDef, '$'.$name, ' = ', $id);
}
if ('' !== $inline = $this->addInlineVariables($id, $definition, $arguments, false)) {
$code .= "\n".$inline."\n";
} elseif ($arguments && 'instance' === $name) {
$code .= "\n";
}
$code .= $this->addServiceProperties($inlineDef, $name);
$code .= $this->addServiceMethodCalls($inlineDef, $name);
$code .= $this->addServiceConfigurator($inlineDef, $name);
}
if ($isRootInstance && !$isSimpleInstance) {
$code .= "\n return \$instance;\n";
}
return $code;
}
/**
* Adds multiple services.
*
* @return string
*/
private function addServices()
{
$publicServices = $privateServices = '';
$definitions = $this->container->getDefinitions();
ksort($definitions);
foreach ($definitions as $id => $definition) {
if ($definition->isSynthetic() || ($this->asFiles && $definition->isShared() && !$this->isHotPath($definition))) {
continue;
}
if ($definition->isPublic()) {
$publicServices .= $this->addService($id, $definition);
} else {
$privateServices .= $this->addService($id, $definition);
}
}
return $publicServices.$privateServices;
}
private function generateServiceFiles()
{
$definitions = $this->container->getDefinitions();
ksort($definitions);
foreach ($definitions as $id => $definition) {
if (!$definition->isSynthetic() && $definition->isShared() && !$this->isHotPath($definition)) {
$code = $this->addService($id, $definition, $file);
yield $file => $code;
}
}
}
private function addNewInstance(Definition $definition, $return, $instantiation, $id)
{
$class = $this->dumpValue($definition->getClass());
$return = ' '.$return.$instantiation;
$arguments = [];
foreach ($definition->getArguments() as $value) {
$arguments[] = $this->dumpValue($value);
}
if (null !== $definition->getFactory()) {
$callable = $definition->getFactory();
if (\is_array($callable)) {
if (!preg_match('/^[a-zA-Z_\x7f-\xff][a-zA-Z0-9_\x7f-\xff]*$/', $callable[1])) {
throw new RuntimeException(sprintf('Cannot dump definition because of invalid factory method (%s)', $callable[1] ?: 'n/a'));
}
if ($callable[0] instanceof Reference
|| ($callable[0] instanceof Definition && $this->definitionVariables->contains($callable[0]))) {
return $return.sprintf("%s->%s(%s);\n", $this->dumpValue($callable[0]), $callable[1], $arguments ? implode(', ', $arguments) : '');
}
$class = $this->dumpValue($callable[0]);
// If the class is a string we can optimize call_user_func away
if (0 === strpos($class, "'") && false === strpos($class, '$')) {
if ("''" === $class) {
throw new RuntimeException(sprintf('Cannot dump definition: The "%s" service is defined to be created by a factory but is missing the service reference, did you forget to define the factory service id or class?', $id));
}
return $return.sprintf("%s::%s(%s);\n", $this->dumpLiteralClass($class), $callable[1], $arguments ? implode(', ', $arguments) : '');
}
if (0 === strpos($class, 'new ')) {
return $return.sprintf("(%s)->%s(%s);\n", $class, $callable[1], $arguments ? implode(', ', $arguments) : '');
}
return $return.sprintf("\\call_user_func([%s, '%s']%s);\n", $class, $callable[1], $arguments ? ', '.implode(', ', $arguments) : '');
}
return $return.sprintf("%s(%s);\n", $this->dumpLiteralClass($this->dumpValue($callable)), $arguments ? implode(', ', $arguments) : '');
}
if (false !== strpos($class, '$')) {
return sprintf(" \$class = %s;\n\n%snew \$class(%s);\n", $class, $return, implode(', ', $arguments));
}
return $return.sprintf("new %s(%s);\n", $this->dumpLiteralClass($class), implode(', ', $arguments));
}
/**
* Adds the class headers.
*
* @param string $class Class name
* @param string $baseClass The name of the base class
* @param string $baseClassWithNamespace Fully qualified base class name
*
* @return string
*/
private function startClass($class, $baseClass, $baseClassWithNamespace)
{
$bagClass = $this->container->isCompiled() ? 'use Symfony\Component\DependencyInjection\ParameterBag\FrozenParameterBag;' : 'use Symfony\Component\DependencyInjection\ParameterBag\\ParameterBag;';
$namespaceLine = !$this->asFiles && $this->namespace ? "\nnamespace {$this->namespace};\n" : '';
$code = <<<EOF
<?php
$namespaceLine
use Symfony\Component\DependencyInjection\Argument\RewindableGenerator;
use Symfony\Component\DependencyInjection\ContainerInterface;
use Symfony\Component\DependencyInjection\Container;
use Symfony\Component\DependencyInjection\Exception\InvalidArgumentException;
use Symfony\Component\DependencyInjection\Exception\LogicException;
use Symfony\Component\DependencyInjection\Exception\RuntimeException;
$bagClass
/*{$this->docStar}
* This class has been auto-generated
* by the Symfony Dependency Injection Component.
*
* @final since Symfony 3.3
*/
class $class extends $baseClass
{
private \$parameters;
private \$targetDirs = [];
public function __construct()
{
EOF;
if (null !== $this->targetDirRegex) {
$dir = $this->asFiles ? '$this->targetDirs[0] = \\dirname($containerDir)' : '__DIR__';
$code .= <<<EOF
\$dir = {$dir};
for (\$i = 1; \$i <= {$this->targetDirMaxMatches}; ++\$i) {
\$this->targetDirs[\$i] = \$dir = \\dirname(\$dir);
}
EOF;
}
if ($this->asFiles) {
$code = str_replace('$parameters', "\$buildParameters;\n private \$containerDir;\n private \$parameters", $code);
$code = str_replace('__construct()', '__construct(array $buildParameters = [], $containerDir = __DIR__)', $code);
$code .= " \$this->buildParameters = \$buildParameters;\n";
$code .= " \$this->containerDir = \$containerDir;\n";
}
if ($this->container->isCompiled()) {
if (Container::class !== $baseClassWithNamespace) {
$r = $this->container->getReflectionClass($baseClassWithNamespace, false);
if (null !== $r
&& (null !== $constructor = $r->getConstructor())