root
70 lines
2.1 KiB
PHP
70 lines
2.1 KiB
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);
|
|
}
|
|
}
|
|
}
|