Initial Commit
This commit is contained in:
David Stone
362
dependencies/symfony/var-exporter/Internal/Exporter.php
vendored
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362
dependencies/symfony/var-exporter/Internal/Exporter.php
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@ -0,0 +1,362 @@
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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 WP_Ultimo\Dependencies\Symfony\Component\VarExporter\Internal;
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use WP_Ultimo\Dependencies\Symfony\Component\VarExporter\Exception\NotInstantiableTypeException;
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/**
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* @author Nicolas Grekas <p@tchwork.com>
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*
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* @internal
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*/
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class Exporter
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{
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/**
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* Prepares an array of values for VarExporter.
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*
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* For performance this method is public and has no type-hints.
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*
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* @param array &$values
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* @param \SplObjectStorage $objectsPool
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* @param array &$refsPool
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* @param int &$objectsCount
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* @param bool &$valuesAreStatic
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*
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* @return array
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*
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* @throws NotInstantiableTypeException When a value cannot be serialized
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*/
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public static function prepare($values, $objectsPool, &$refsPool, &$objectsCount, &$valuesAreStatic)
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{
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$refs = $values;
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foreach ($values as $k => $value) {
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if (\is_resource($value)) {
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throw new NotInstantiableTypeException(\get_resource_type($value) . ' resource');
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}
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$refs[$k] = $objectsPool;
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if ($isRef = !($valueIsStatic = $values[$k] !== $objectsPool)) {
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$values[$k] =& $value;
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// Break hard references to make $values completely
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unset($value);
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// independent from the original structure
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$refs[$k] = $value = $values[$k];
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if ($value instanceof Reference && 0 > $value->id) {
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$valuesAreStatic = \false;
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++$value->count;
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continue;
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}
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$refsPool[] = [&$refs[$k], $value, &$value];
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$refs[$k] = $values[$k] = new Reference(-\count($refsPool), $value);
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}
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if (\is_array($value)) {
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if ($value) {
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$value = self::prepare($value, $objectsPool, $refsPool, $objectsCount, $valueIsStatic);
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}
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goto handle_value;
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} elseif (!\is_object($value) || $value instanceof \UnitEnum) {
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goto handle_value;
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}
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$valueIsStatic = \false;
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if (isset($objectsPool[$value])) {
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++$objectsCount;
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$value = new Reference($objectsPool[$value][0]);
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goto handle_value;
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}
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$class = $value::class;
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$reflector = Registry::$reflectors[$class] ??= Registry::getClassReflector($class);
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$properties = [];
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if ($reflector->hasMethod('__serialize')) {
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if (!$reflector->getMethod('__serialize')->isPublic()) {
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throw new \Error(\sprintf('Call to %s method "%s::__serialize()".', $reflector->getMethod('__serialize')->isProtected() ? 'protected' : 'private', $class));
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}
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if (!\is_array($serializeProperties = $value->__serialize())) {
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throw new \TypeError($class . '::__serialize() must return an array');
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}
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if ($reflector->hasMethod('__unserialize')) {
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$properties = $serializeProperties;
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} else {
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foreach ($serializeProperties as $n => $v) {
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$c = \PHP_VERSION_ID >= 80100 && $reflector->hasProperty($n) && ($p = $reflector->getProperty($n))->isReadOnly() ? $p->class : 'stdClass';
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$properties[$c][$n] = $v;
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}
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}
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goto prepare_value;
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}
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$sleep = null;
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$proto = Registry::$prototypes[$class];
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if (($value instanceof \ArrayIterator || $value instanceof \ArrayObject) && null !== $proto) {
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// ArrayIterator and ArrayObject need special care because their "flags"
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// option changes the behavior of the (array) casting operator.
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[$arrayValue, $properties] = self::getArrayObjectProperties($value, $proto);
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// populates Registry::$prototypes[$class] with a new instance
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Registry::getClassReflector($class, Registry::$instantiableWithoutConstructor[$class], Registry::$cloneable[$class]);
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} elseif ($value instanceof \SplObjectStorage && Registry::$cloneable[$class] && null !== $proto) {
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// By implementing Serializable, SplObjectStorage breaks
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// internal references; let's deal with it on our own.
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foreach (clone $value as $v) {
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$properties[] = $v;
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$properties[] = $value[$v];
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}
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$properties = ['SplObjectStorage' => ["\x00" => $properties]];
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$arrayValue = (array) $value;
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} elseif ($value instanceof \Serializable || $value instanceof \__PHP_Incomplete_Class || \PHP_VERSION_ID < 80200 && $value instanceof \DatePeriod) {
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++$objectsCount;
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$objectsPool[$value] = [$id = \count($objectsPool), \serialize($value), [], 0];
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$value = new Reference($id);
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goto handle_value;
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} else {
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if (\method_exists($class, '__sleep')) {
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if (!\is_array($sleep = $value->__sleep())) {
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\trigger_error('serialize(): __sleep should return an array only containing the names of instance-variables to serialize', \E_USER_NOTICE);
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$value = null;
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goto handle_value;
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}
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$sleep = \array_flip($sleep);
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}
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$arrayValue = (array) $value;
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}
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$proto = (array) $proto;
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foreach ($arrayValue as $name => $v) {
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$i = 0;
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$n = (string) $name;
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if ('' === $n || "\x00" !== $n[0]) {
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$c = $reflector->hasProperty($n) && ($p = $reflector->getProperty($n))->isReadOnly() ? $p->class : 'stdClass';
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} elseif ('*' === $n[1]) {
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$n = \substr($n, 3);
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$c = $reflector->getProperty($n)->class;
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if ('Error' === $c) {
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$c = 'TypeError';
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} elseif ('Exception' === $c) {
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$c = 'ErrorException';
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}
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} else {
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$i = \strpos($n, "\x00", 2);
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$c = \substr($n, 1, $i - 1);
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$n = \substr($n, 1 + $i);
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}
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if (null !== $sleep) {
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if (!isset($sleep[$n]) || $i && $c !== $class) {
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unset($arrayValue[$name]);
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continue;
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}
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$sleep[$n] = \false;
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}
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if (!\array_key_exists($name, $proto) || $proto[$name] !== $v || "\x00Error\x00trace" === $name || "\x00Exception\x00trace" === $name) {
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$properties[$c][$n] = $v;
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}
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}
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if ($sleep) {
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foreach ($sleep as $n => $v) {
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if (\false !== $v) {
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\trigger_error(\sprintf('serialize(): "%s" returned as member variable from __sleep() but does not exist', $n), \E_USER_NOTICE);
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}
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}
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}
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if (\method_exists($class, '__unserialize')) {
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$properties = $arrayValue;
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}
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prepare_value:
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$objectsPool[$value] = [$id = \count($objectsPool)];
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$properties = self::prepare($properties, $objectsPool, $refsPool, $objectsCount, $valueIsStatic);
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++$objectsCount;
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$objectsPool[$value] = [$id, $class, $properties, \method_exists($class, '__unserialize') ? -$objectsCount : (\method_exists($class, '__wakeup') ? $objectsCount : 0)];
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$value = new Reference($id);
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handle_value:
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if ($isRef) {
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unset($value);
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// Break the hard reference created above
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} elseif (!$valueIsStatic) {
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$values[$k] = $value;
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}
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$valuesAreStatic = $valueIsStatic && $valuesAreStatic;
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}
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return $values;
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}
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public static function export($value, $indent = '')
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{
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switch (\true) {
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case \is_int($value) || \is_float($value):
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return \var_export($value, \true);
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case [] === $value:
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return '[]';
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case \false === $value:
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return 'false';
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case \true === $value:
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return 'true';
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case null === $value:
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return 'null';
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case '' === $value:
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return "''";
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case $value instanceof \UnitEnum:
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return '\\' . \ltrim(\var_export($value, \true), '\\');
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}
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if ($value instanceof Reference) {
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if (0 <= $value->id) {
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return '$o[' . $value->id . ']';
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}
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if (!$value->count) {
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return self::export($value->value, $indent);
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}
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$value = -$value->id;
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return '&$r[' . $value . ']';
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}
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$subIndent = $indent . ' ';
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if (\is_string($value)) {
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$code = \sprintf("'%s'", \addcslashes($value, "'\\"));
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$code = \preg_replace_callback("/((?:[\\0\\r\\n]|||||||||)++)(.)/", function ($m) use($subIndent) {
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$m[1] = \sprintf('\'."%s".\'', \str_replace(["\x00", "\r", "\n", "", "", "", "", "", "", "", "", "", '\\n\\'], ['\\0', '\\r', '\\n', '\\u{202A}', '\\u{202B}', '\\u{202D}', '\\u{202E}', '\\u{2066}', '\\u{2067}', '\\u{2068}', '\\u{202C}', '\\u{2069}', '\\n"' . "\n" . $subIndent . '."\\'], $m[1]));
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if ("'" === $m[2]) {
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return \substr($m[1], 0, -2);
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}
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if (\str_ends_with($m[1], 'n".\'')) {
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return \substr_replace($m[1], "\n" . $subIndent . ".'" . $m[2], -2);
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}
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return $m[1] . $m[2];
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}, $code, -1, $count);
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if ($count && \str_starts_with($code, "''.")) {
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$code = \substr($code, 3);
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}
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return $code;
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}
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if (\is_array($value)) {
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$j = -1;
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$code = '';
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foreach ($value as $k => $v) {
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$code .= $subIndent;
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if (!\is_int($k) || 1 !== $k - $j) {
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$code .= self::export($k, $subIndent) . ' => ';
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}
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if (\is_int($k) && $k > $j) {
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$j = $k;
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}
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$code .= self::export($v, $subIndent) . ",\n";
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}
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return "[\n" . $code . $indent . ']';
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}
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if ($value instanceof Values) {
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$code = $subIndent . "\$r = [],\n";
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foreach ($value->values as $k => $v) {
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$code .= $subIndent . '$r[' . $k . '] = ' . self::export($v, $subIndent) . ",\n";
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}
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return "[\n" . $code . $indent . ']';
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}
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if ($value instanceof Registry) {
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return self::exportRegistry($value, $indent, $subIndent);
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}
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if ($value instanceof Hydrator) {
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return self::exportHydrator($value, $indent, $subIndent);
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}
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throw new \UnexpectedValueException(\sprintf('Cannot export value of type "%s".', \get_debug_type($value)));
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}
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private static function exportRegistry(Registry $value, string $indent, string $subIndent) : string
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{
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$code = '';
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$serializables = [];
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$seen = [];
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$prototypesAccess = 0;
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$factoriesAccess = 0;
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$r = '\\' . Registry::class;
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$j = -1;
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foreach ($value->classes as $k => $class) {
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if (':' === ($class[1] ?? null)) {
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$serializables[$k] = $class;
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continue;
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}
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if (!Registry::$instantiableWithoutConstructor[$class]) {
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if (\is_subclass_of($class, 'Serializable') && !\method_exists($class, '__unserialize')) {
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$serializables[$k] = 'C:' . \strlen($class) . ':"' . $class . '":0:{}';
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} else {
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$serializables[$k] = 'O:' . \strlen($class) . ':"' . $class . '":0:{}';
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}
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if (\is_subclass_of($class, 'Throwable')) {
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$eol = \is_subclass_of($class, 'Error') ? "\x00Error\x00" : "\x00Exception\x00";
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$serializables[$k] = \substr_replace($serializables[$k], '1:{s:' . (5 + \strlen($eol)) . ':"' . $eol . 'trace";a:0:{}}', -4);
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}
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continue;
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}
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$code .= $subIndent . (1 !== $k - $j ? $k . ' => ' : '');
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$j = $k;
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$eol = ",\n";
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$c = '[' . self::export($class) . ']';
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if ($seen[$class] ?? \false) {
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if (Registry::$cloneable[$class]) {
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++$prototypesAccess;
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$code .= 'clone $p' . $c;
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} else {
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++$factoriesAccess;
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$code .= '$f' . $c . '()';
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}
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} else {
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$seen[$class] = \true;
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if (Registry::$cloneable[$class]) {
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$code .= 'clone (' . ($prototypesAccess++ ? '$p' : '($p = &' . $r . '::$prototypes)') . $c . ' ?? ' . $r . '::p';
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} else {
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$code .= '(' . ($factoriesAccess++ ? '$f' : '($f = &' . $r . '::$factories)') . $c . ' ?? ' . $r . '::f';
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$eol = '()' . $eol;
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}
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$code .= '(' . \substr($c, 1, -1) . '))';
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}
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$code .= $eol;
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}
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if (1 === $prototypesAccess) {
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$code = \str_replace('($p = &' . $r . '::$prototypes)', $r . '::$prototypes', $code);
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}
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if (1 === $factoriesAccess) {
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$code = \str_replace('($f = &' . $r . '::$factories)', $r . '::$factories', $code);
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}
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if ('' !== $code) {
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$code = "\n" . $code . $indent;
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}
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if ($serializables) {
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$code = $r . '::unserialize([' . $code . '], ' . self::export($serializables, $indent) . ')';
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} else {
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$code = '[' . $code . ']';
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}
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return '$o = ' . $code;
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}
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private static function exportHydrator(Hydrator $value, string $indent, string $subIndent) : string
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{
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$code = '';
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foreach ($value->properties as $class => $properties) {
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$code .= $subIndent . ' ' . self::export($class) . ' => ' . self::export($properties, $subIndent . ' ') . ",\n";
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}
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$code = [self::export($value->registry, $subIndent), self::export($value->values, $subIndent), '' !== $code ? "[\n" . $code . $subIndent . ']' : '[]', self::export($value->value, $subIndent), self::export($value->wakeups, $subIndent)];
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return '\\' . $value::class . "::hydrate(\n" . $subIndent . \implode(",\n" . $subIndent, $code) . "\n" . $indent . ')';
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}
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/**
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* @param \ArrayIterator|\ArrayObject $value
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* @param \ArrayIterator|\ArrayObject $proto
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*/
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private static function getArrayObjectProperties($value, $proto) : array
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{
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$reflector = $value instanceof \ArrayIterator ? 'ArrayIterator' : 'ArrayObject';
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$reflector = Registry::$reflectors[$reflector] ??= Registry::getClassReflector($reflector);
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$properties = [$arrayValue = (array) $value, $reflector->getMethod('getFlags')->invoke($value), $value instanceof \ArrayObject ? $reflector->getMethod('getIteratorClass')->invoke($value) : 'ArrayIterator'];
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$reflector = $reflector->getMethod('setFlags');
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$reflector->invoke($proto, \ArrayObject::STD_PROP_LIST);
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if ($properties[1] & \ArrayObject::STD_PROP_LIST) {
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$reflector->invoke($value, 0);
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$properties[0] = (array) $value;
|
||||
} else {
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$reflector->invoke($value, \ArrayObject::STD_PROP_LIST);
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$arrayValue = (array) $value;
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}
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$reflector->invoke($value, $properties[1]);
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if ([[], 0, 'ArrayIterator'] === $properties) {
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$properties = [];
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||||
} else {
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if ('ArrayIterator' === $properties[2]) {
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||||
unset($properties[2]);
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||||
}
|
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$properties = [$reflector->class => ["\x00" => $properties]];
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||||
}
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return [$arrayValue, $properties];
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||||
}
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||||
}
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