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Edit File: ParserState.php

<?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\Yaml; use Symfony\Component\Yaml\Exception\ParseException; use Symfony\Component\Yaml\Tag\TaggedValue; /** * @internal */ final class ParserState { public int $maxNestingLevel = Parser::DEFAULT_MAX_NESTING_LEVEL; public int $currentNestingLevel = 0; public int $maxAliasesForCollections = Parser::DEFAULT_MAX_ALIASES_FOR_COLLECTIONS; public int $collectionAliasCount = 0; public bool $aliasesEnabled = true; public function reset(): void { $this->currentNestingLevel = 0; $this->collectionAliasCount = 0; $this->aliasesEnabled = true; } public function enterNestingLevel(int $line, ?string $snippet, ?string $filename): void { if (++$this->currentNestingLevel > $this->maxNestingLevel) { --$this->currentNestingLevel; throw new ParseException(\sprintf('Maximum nesting depth of %d exceeded.', $this->maxNestingLevel), $line, $snippet, $filename); } } public function leaveNestingLevel(): void { if ($this->currentNestingLevel > 0) { --$this->currentNestingLevel; } } public function countAlias(mixed $refValue, int $line, ?string $snippet, ?string $filename): void { if (!$this->aliasesEnabled) { throw new ParseException('Aliases are disabled.', $line, $snippet, $filename); } if ($refValue instanceof TaggedValue) { $refValue = $refValue->getValue(); } if (!\is_array($refValue) && !$refValue instanceof \stdClass) { return; } if (++$this->collectionAliasCount > $this->maxAliasesForCollections) { throw new ParseException(\sprintf('Maximum number of collection aliases (%d) exceeded. This limit can be increased via the Parser constructor.', $this->maxAliasesForCollections), $line, $snippet, $filename); } } }