IncludeTreeSourceAggregatorVisitor.php

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<?php
 
declare(strict_types=1);
 
/*
 * This file is part of the TYPO3 CMS project.
 *
 * It is free software; you can redistribute it and/or modify it under
 * the terms of the GNU General Public License, either version 2
 * of the License, or any later version.
 *
 * For the full copyright and license information, please read the
 * LICENSE.txt file that was distributed with this source code.
 *
 * The TYPO3 project - inspiring people to share!
 */
 
namespace ‪TYPO3\CMS\Core\TypoScript\IncludeTree\Visitor;
 
use ‪TYPO3\CMS\Core\TypoScript\IncludeTree\IncludeNode\AtImportInclude;
use ‪TYPO3\CMS\Core\TypoScript\IncludeTree\IncludeNode\ConditionElseInclude;
use ‪TYPO3\CMS\Core\TypoScript\IncludeTree\IncludeNode\ConditionInclude;
use ‪TYPO3\CMS\Core\TypoScript\IncludeTree\IncludeNode\IncludeInterface;
use ‪TYPO3\CMS\Core\TypoScript\IncludeTree\IncludeNode\IncludeTyposcriptInclude;
 
final class ‪IncludeTreeSourceAggregatorVisitor implements ‪IncludeTreeVisitorInterface
{
    private string ‪$source = '';
 
    private string ‪$startNodeIdentifier = '';
    private bool ‪$startNodeHandled = false;
    private int ‪$startNodeDepth = 0;
    private bool ‪$isWithinStartNode = false;
 
    public function ‪setStartNodeIdentifier(string ‪$startNodeIdentifier)
    {
        $this->startNodeIdentifier = ‪$startNodeIdentifier;
    }
 
    public function ‪getSource(): string
    {
        return ‪$this->source;
    }
 
    public function ‪visitBeforeChildren(‪IncludeInterface $include, int $currentDepth): void
    {
        if ($this->startNodeHandled && $currentDepth <= $this->startNodeDepth) {
            $this->isWithinStartNode = false;
        }
        if ($this->startNodeIdentifier === $include->‪getIdentifier() && !$this->startNodeHandled) {
            $this->startNodeDepth = $currentDepth;
            $this->isWithinStartNode = true;
            $this->startNodeHandled = true;
        }
        if (empty($this->startNodeIdentifier) || $this->isWithinStartNode) {
            $lineStream = $include->‪getLineStream();
            if ($lineStream !== null
                && !$lineStream->isEmpty()
                && ($include instanceof ‪ConditionInclude || $include instanceof ‪ConditionElseInclude)
            ) {
                $this->source .= "\n#\n# Condition from '" . $include->‪getName() . '\' Line ' . $include->getConditionToken()->getLine() . "\n#\n";
                $this->source .= $lineStream;
            }
            if ($include instanceof IncludeTyposcriptInclude || $include instanceof AtImportInclude) {
                $this->source .= "\n#\n# Include from definition '" . trim((string)($include->getOriginalLine()->getTokenStream())) . "'\n#\n";
            }
        }
    }
 
    public function visit(IncludeInterface $include, int $currentDepth): void
    {
        if (empty($this->startNodeIdentifier) || $this->isWithinStartNode) {
            $lineStream = $include->getLineStream();
            if ($lineStream === null
                || $lineStream->isEmpty()
                || ($include->isSplit())
            ) {
                return;
            }
            $this->source .= "\n#\n# Content from '" . $include->getName() . "'\n#\n";
            $this->source .= $lineStream;
        }
    }
}