380 lines
12 KiB
PHP
380 lines
12 KiB
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\Config\Definition;
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use Symfony\Component\Config\Definition\Exception\InvalidConfigurationException;
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use Symfony\Component\Config\Definition\Exception\InvalidTypeException;
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use Symfony\Component\Config\Definition\Exception\UnsetKeyException;
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/**
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* Represents an Array node in the config tree.
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*
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* @author Johannes M. Schmitt <schmittjoh@gmail.com>
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*/
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class ArrayNode extends BaseNode implements PrototypeNodeInterface
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{
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protected array $xmlRemappings = [];
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protected array $children = [];
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protected bool $allowFalse = false;
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protected bool $allowNewKeys = true;
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protected bool $addIfNotSet = false;
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protected bool $performDeepMerging = true;
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protected bool $ignoreExtraKeys = false;
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protected bool $removeExtraKeys = true;
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protected bool $normalizeKeys = true;
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public function setNormalizeKeys(bool $normalizeKeys): void
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{
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$this->normalizeKeys = $normalizeKeys;
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}
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/**
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* Namely, you mostly have foo_bar in YAML while you have foo-bar in XML.
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* After running this method, all keys are normalized to foo_bar.
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*
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* If you have a mixed key like foo-bar_moo, it will not be altered.
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* The key will also not be altered if the target key already exists.
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*/
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protected function preNormalize(mixed $value): mixed
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{
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if (!$this->normalizeKeys || !\is_array($value)) {
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return $value;
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}
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$normalized = [];
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foreach ($value as $k => $v) {
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if (str_contains($k, '-') && !str_contains($k, '_') && !\array_key_exists($normalizedKey = str_replace('-', '_', $k), $value)) {
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$normalized[$normalizedKey] = $v;
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} else {
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$normalized[$k] = $v;
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}
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}
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return $normalized;
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}
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/**
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* Retrieves the children of this node.
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*
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* @return array<string, NodeInterface>
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*/
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public function getChildren(): array
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{
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return $this->children;
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}
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/**
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* Sets the xml remappings that should be performed.
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*
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* @param array $remappings An array of the form [[string, string]]
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*/
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public function setXmlRemappings(array $remappings): void
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{
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$this->xmlRemappings = $remappings;
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}
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/**
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* Gets the xml remappings that should be performed.
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*
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* @return array an array of the form [[string, string]]
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*/
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public function getXmlRemappings(): array
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{
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return $this->xmlRemappings;
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}
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/**
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* Sets whether to add default values for this array if it has not been
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* defined in any of the configuration files.
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*/
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public function setAddIfNotSet(bool $boolean): void
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{
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$this->addIfNotSet = $boolean;
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}
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/**
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* Sets whether false is allowed as value indicating that the array should be unset.
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*/
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public function setAllowFalse(bool $allow): void
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{
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$this->allowFalse = $allow;
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}
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/**
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* Sets whether new keys can be defined in subsequent configurations.
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*/
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public function setAllowNewKeys(bool $allow): void
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{
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$this->allowNewKeys = $allow;
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}
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/**
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* Sets if deep merging should occur.
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*/
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public function setPerformDeepMerging(bool $boolean): void
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{
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$this->performDeepMerging = $boolean;
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}
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/**
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* Whether extra keys should just be ignored without an exception.
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*
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* @param bool $boolean To allow extra keys
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* @param bool $remove To remove extra keys
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*/
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public function setIgnoreExtraKeys(bool $boolean, bool $remove = true): void
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{
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$this->ignoreExtraKeys = $boolean;
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$this->removeExtraKeys = $this->ignoreExtraKeys && $remove;
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}
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/**
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* Returns true when extra keys should be ignored without an exception.
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*/
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public function shouldIgnoreExtraKeys(): bool
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{
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return $this->ignoreExtraKeys;
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}
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public function setName(string $name): void
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{
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$this->name = $name;
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}
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public function hasDefaultValue(): bool
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{
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return $this->addIfNotSet;
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}
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public function getDefaultValue(): mixed
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{
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if (!$this->hasDefaultValue()) {
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throw new \RuntimeException(sprintf('The node at path "%s" has no default value.', $this->getPath()));
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}
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$defaults = [];
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foreach ($this->children as $name => $child) {
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if ($child->hasDefaultValue()) {
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$defaults[$name] = $child->getDefaultValue();
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}
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}
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return $defaults;
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}
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/**
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* Adds a child node.
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*
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* @throws \InvalidArgumentException when the child node has no name
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* @throws \InvalidArgumentException when the child node's name is not unique
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*/
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public function addChild(NodeInterface $node): void
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{
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$name = $node->getName();
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if ('' === $name) {
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throw new \InvalidArgumentException('Child nodes must be named.');
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}
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if (isset($this->children[$name])) {
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throw new \InvalidArgumentException(sprintf('A child node named "%s" already exists.', $name));
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}
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$this->children[$name] = $node;
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}
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/**
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* @throws UnsetKeyException
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* @throws InvalidConfigurationException if the node doesn't have enough children
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*/
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protected function finalizeValue(mixed $value): mixed
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{
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if (false === $value) {
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throw new UnsetKeyException(sprintf('Unsetting key for path "%s", value: %s.', $this->getPath(), json_encode($value)));
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}
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foreach ($this->children as $name => $child) {
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if (!\array_key_exists($name, $value)) {
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if ($child->isRequired()) {
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$message = sprintf('The child config "%s" under "%s" must be configured', $name, $this->getPath());
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if ($child->getInfo()) {
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$message .= sprintf(': %s', $child->getInfo());
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} else {
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$message .= '.';
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}
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$ex = new InvalidConfigurationException($message);
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$ex->setPath($this->getPath());
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throw $ex;
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}
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if ($child->hasDefaultValue()) {
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$value[$name] = $child->getDefaultValue();
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}
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continue;
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}
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if ($child->isDeprecated()) {
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$deprecation = $child->getDeprecation($name, $this->getPath());
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trigger_deprecation($deprecation['package'], $deprecation['version'], $deprecation['message']);
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}
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try {
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$value[$name] = $child->finalize($value[$name]);
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} catch (UnsetKeyException) {
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unset($value[$name]);
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}
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}
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return $value;
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}
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protected function validateType(mixed $value): void
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{
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if (!\is_array($value) && (!$this->allowFalse || false !== $value)) {
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$ex = new InvalidTypeException(sprintf('Invalid type for path "%s". Expected "array", but got "%s"', $this->getPath(), get_debug_type($value)));
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if ($hint = $this->getInfo()) {
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$ex->addHint($hint);
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}
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$ex->setPath($this->getPath());
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throw $ex;
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}
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}
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/**
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* @throws InvalidConfigurationException
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*/
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protected function normalizeValue(mixed $value): mixed
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{
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if (false === $value) {
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return $value;
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}
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$value = $this->remapXml($value);
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$normalized = [];
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foreach ($value as $name => $val) {
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if (isset($this->children[$name])) {
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try {
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$normalized[$name] = $this->children[$name]->normalize($val);
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} catch (UnsetKeyException) {
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}
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unset($value[$name]);
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} elseif (!$this->removeExtraKeys) {
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$normalized[$name] = $val;
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}
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}
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// if extra fields are present, throw exception
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if (\count($value) && !$this->ignoreExtraKeys) {
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$proposals = array_keys($this->children);
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sort($proposals);
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$guesses = [];
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foreach (array_keys($value) as $subject) {
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$minScore = \INF;
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foreach ($proposals as $proposal) {
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$distance = levenshtein($subject, $proposal);
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if ($distance <= $minScore && $distance < 3) {
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$guesses[$proposal] = $distance;
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$minScore = $distance;
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}
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}
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}
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$msg = sprintf('Unrecognized option%s "%s" under "%s"', 1 === \count($value) ? '' : 's', implode(', ', array_keys($value)), $this->getPath());
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if (\count($guesses)) {
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asort($guesses);
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$msg .= sprintf('. Did you mean "%s"?', implode('", "', array_keys($guesses)));
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} else {
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$msg .= sprintf('. Available option%s %s "%s".', 1 === \count($proposals) ? '' : 's', 1 === \count($proposals) ? 'is' : 'are', implode('", "', $proposals));
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}
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$ex = new InvalidConfigurationException($msg);
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$ex->setPath($this->getPath());
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throw $ex;
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}
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return $normalized;
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}
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/**
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* Remaps multiple singular values to a single plural value.
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*/
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protected function remapXml(array $value): array
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{
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foreach ($this->xmlRemappings as [$singular, $plural]) {
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if (!isset($value[$singular])) {
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continue;
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}
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$value[$plural] = Processor::normalizeConfig($value, $singular, $plural);
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unset($value[$singular]);
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}
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return $value;
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}
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/**
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* @throws InvalidConfigurationException
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* @throws \RuntimeException
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*/
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protected function mergeValues(mixed $leftSide, mixed $rightSide): mixed
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{
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if (false === $rightSide) {
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// if this is still false after the last config has been merged the
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// finalization pass will take care of removing this key entirely
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return false;
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}
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if (false === $leftSide || !$this->performDeepMerging) {
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return $rightSide;
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}
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foreach ($rightSide as $k => $v) {
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// no conflict
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if (!\array_key_exists($k, $leftSide)) {
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if (!$this->allowNewKeys) {
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$ex = new InvalidConfigurationException(sprintf('You are not allowed to define new elements for path "%s". Please define all elements for this path in one config file. If you are trying to overwrite an element, make sure you redefine it with the same name.', $this->getPath()));
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$ex->setPath($this->getPath());
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throw $ex;
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}
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$leftSide[$k] = $v;
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continue;
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}
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if (!isset($this->children[$k])) {
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if (!$this->ignoreExtraKeys || $this->removeExtraKeys) {
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throw new \RuntimeException('merge() expects a normalized config array.');
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}
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$leftSide[$k] = $v;
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continue;
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}
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$leftSide[$k] = $this->children[$k]->merge($leftSide[$k], $v);
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}
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return $leftSide;
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}
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protected function allowPlaceholders(): bool
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{
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return false;
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}
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}
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