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<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <[email protected]>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\VarExporter\Internal;
use Symfony\Component\VarExporter\Exception\ClassNotFoundException;
/**
* @author Nicolas Grekas <[email protected]>
*
* @internal
*/
class Hydrator
{
public static array $hydrators = [];
public static array $simpleHydrators = [];
public static array $propertyScopes = [];
public function __construct(
public readonly Registry $registry,
public readonly ?Values $values,
public readonly array $properties,
public readonly mixed $value,
public readonly array $wakeups,
) {
}
public static function hydrate($objects, $values, $properties, $value, $wakeups)
{
foreach ($properties as $class => $vars) {
(self::$hydrators[$class] ??= self::getHydrator($class))($vars, $objects);
}
foreach ($wakeups as $k => $v) {
if (\is_array($v)) {
$objects[-$k]->__unserialize($v);
} else {
$objects[$v]->__wakeup();
}
}
return $value;
}
public static function getHydrator($class)
{
$baseHydrator = self::$hydrators['stdClass'] ??= static function ($properties, $objects) {
foreach ($properties as $name => $values) {
foreach ($values as $i => $v) {
$objects[$i]->$name = $v;
}
}
};
switch ($class) {
case 'stdClass':
return $baseHydrator;
case 'ErrorException':
return $baseHydrator->bindTo(null, new class() extends \ErrorException {
});
case 'TypeError':
return $baseHydrator->bindTo(null, new class() extends \Error {
});
case 'SplObjectStorage':
return static function ($properties, $objects) {
foreach ($properties as $name => $values) {
if ("\0" === $name) {
foreach ($values as $i => $v) {
for ($j = 0; $j < \count($v); ++$j) {
$objects[$i]->attach($v[$j], $v[++$j]);
}
}
continue;
}
foreach ($values as $i => $v) {
$objects[$i]->$name = $v;
}
}
};
}
if (!class_exists($class) && !interface_exists($class, false) && !trait_exists($class, false)) {
throw new ClassNotFoundException($class);
}
$classReflector = new \ReflectionClass($class);
switch ($class) {
case 'ArrayIterator':
case 'ArrayObject':
$constructor = $classReflector->getConstructor()->invokeArgs(...);
return static function ($properties, $objects) use ($constructor) {
foreach ($properties as $name => $values) {
if ("\0" !== $name) {
foreach ($values as $i => $v) {
$objects[$i]->$name = $v;
}
}
}
foreach ($properties["\0"] ?? [] as $i => $v) {
$constructor($objects[$i], $v);
}
};
}
if (!$classReflector->isInternal()) {
return $baseHydrator->bindTo(null, $class);
}
if ($classReflector->name !== $class) {
return self::$hydrators[$classReflector->name] ??= self::getHydrator($classReflector->name);
}
$propertySetters = [];
foreach ($classReflector->getProperties() as $propertyReflector) {
if (!$propertyReflector->isStatic()) {
$propertySetters[$propertyReflector->name] = $propertyReflector->setValue(...);
}
}
if (!$propertySetters) {
return $baseHydrator;
}
return static function ($properties, $objects) use ($propertySetters) {
foreach ($properties as $name => $values) {
if ($setValue = $propertySetters[$name] ?? null) {
foreach ($values as $i => $v) {
$setValue($objects[$i], $v);
}
continue;
}
foreach ($values as $i => $v) {
$objects[$i]->$name = $v;
}
}
};
}
public static function getSimpleHydrator($class)
{
$baseHydrator = self::$simpleHydrators['stdClass'] ??= (function ($properties, $object) {
$readonly = (array) $this;
foreach ($properties as $name => &$value) {
$object->$name = $value;
if (!($readonly[$name] ?? false)) {
$object->$name = &$value;
}
}
})->bindTo(new \stdClass());
switch ($class) {
case 'stdClass':
return $baseHydrator;
case 'ErrorException':
return $baseHydrator->bindTo(new \stdClass(), new class() extends \ErrorException {
});
case 'TypeError':
return $baseHydrator->bindTo(new \stdClass(), new class() extends \Error {
});
case 'SplObjectStorage':
return static function ($properties, $object) {
foreach ($properties as $name => &$value) {
if ("\0" !== $name) {
$object->$name = $value;
$object->$name = &$value;
continue;
}
for ($i = 0; $i < \count($value); ++$i) {
$object->attach($value[$i], $value[++$i]);
}
}
};
}
if (!class_exists($class) && !interface_exists($class, false) && !trait_exists($class, false)) {
throw new ClassNotFoundException($class);
}
$classReflector = new \ReflectionClass($class);
switch ($class) {
case 'ArrayIterator':
case 'ArrayObject':
$constructor = $classReflector->getConstructor()->invokeArgs(...);
return static function ($properties, $object) use ($constructor) {
foreach ($properties as $name => &$value) {
if ("\0" === $name) {
$constructor($object, $value);
} else {
$object->$name = $value;
$object->$name = &$value;
}
}
};
}
if (!$classReflector->isInternal()) {
$readonly = new \stdClass();
foreach ($classReflector->getProperties(\ReflectionProperty::IS_READONLY) as $propertyReflector) {
if ($class === $propertyReflector->class) {
$readonly->{$propertyReflector->name} = true;
}
}
return $baseHydrator->bindTo($readonly, $class);
}
if ($classReflector->name !== $class) {
return self::$simpleHydrators[$classReflector->name] ??= self::getSimpleHydrator($classReflector->name);
}
$propertySetters = [];
foreach ($classReflector->getProperties() as $propertyReflector) {
if (!$propertyReflector->isStatic()) {
$propertySetters[$propertyReflector->name] = $propertyReflector->setValue(...);
}
}
if (!$propertySetters) {
return $baseHydrator;
}
return static function ($properties, $object) use ($propertySetters) {
foreach ($properties as $name => &$value) {
if ($setValue = $propertySetters[$name] ?? null) {
$setValue($object, $value);
} else {
$object->$name = $value;
$object->$name = &$value;
}
}
};
}
public static function getPropertyScopes($class): array
{
$propertyScopes = [];
$r = new \ReflectionClass($class);
foreach ($r->getProperties() as $property) {
$flags = $property->getModifiers();
if (\ReflectionProperty::IS_STATIC & $flags) {
continue;
}
$name = $property->name;
if (\ReflectionProperty::IS_PRIVATE & $flags) {
$propertyScopes["\0$class\0$name"] = $propertyScopes[$name] = [$class, $name, $flags & \ReflectionProperty::IS_READONLY ? $class : null, $property];
continue;
}
$propertyScopes[$name] = [$class, $name, $flags & \ReflectionProperty::IS_READONLY ? $property->class : null, $property];
if (\ReflectionProperty::IS_PROTECTED & $flags) {
$propertyScopes["\0*\0$name"] = $propertyScopes[$name];
}
}
while ($r = $r->getParentClass()) {
$class = $r->name;
foreach ($r->getProperties(\ReflectionProperty::IS_PRIVATE) as $property) {
if (!$property->isStatic()) {
$name = $property->name;
$readonlyScope = $property->isReadOnly() ? $class : null;
$propertyScopes["\0$class\0$name"] = [$class, $name, $readonlyScope, $property];
$propertyScopes[$name] ??= [$class, $name, $readonlyScope, $property];
}
}
}
return $propertyScopes;
}
}