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MemoryLimitedReferenceMap.php (1.59 KB)

Reference.php (1.13 KB)

ReferenceInterface.php (623 B)

ReferenceMap.php (1.97 KB)

ReferenceParser.php (9.02 KB)

Edit: MemoryLimitedReferenceMap.php

<?php

declare(strict_types=1);

/*
 * This file is part of the league/commonmark package.
 *
 * (c) Colin O'Dell <colinodell@gmail.com>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace League\CommonMark\Reference;

final class MemoryLimitedReferenceMap implements ReferenceMapInterface
{
    private ReferenceMapInterface $decorated;

private const MINIMUM_SIZE = 100_000;

private int $remaining;

public function __construct(ReferenceMapInterface $decorated, int $maxSize)
    {
        $this->decorated = $decorated;
        $this->remaining = \max(self::MINIMUM_SIZE, $maxSize);
    }

public function add(ReferenceInterface $reference): void
    {
        $this->decorated->add($reference);
    }

public function contains(string $label): bool
    {
        return $this->decorated->contains($label);
    }

public function get(string $label): ?ReferenceInterface
    {
        $reference = $this->decorated->get($label);
        if ($reference === null) {
            return null;
        }

// Check for expansion limit
        $this->remaining -= \strlen($reference->getDestination()) + \strlen($reference->getTitle());
        if ($this->remaining < 0) {
            return null;
        }

return $reference;
    }

/**
     * @return \Traversable<string, ReferenceInterface>
     */
    public function getIterator(): \Traversable
    {
        return $this->decorated->getIterator();
    }

public function count(): int
    {
        return $this->decorated->count();
    }
}