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Current File : /www/varak.net/losik.varak.net/vendor/nette/caching/src/Bridges/CacheLatte/CacheMacro.php

<?php

/**
 * This file is part of the Nette Framework (https://nette.org)
 * Copyright (c) 2004 David Grudl (https://davidgrudl.com)
 */

declare(strict_types=1);

namespace Nette\Bridges\CacheLatte;

use Latte;
use Nette;
use Nette\Caching\Cache;


/**
 * Macro {cache} ... {/cache} for Latte v2
 */
final class CacheMacro implements Latte\IMacro
{
	use Nette\SmartObject;

	/** @var bool */
	private $used;


	/**
	 * Initializes before template parsing.
	 * @return void
	 */
	public function initialize()
	{
		$this->used = false;
	}


	/**
	 * Finishes template parsing.
	 * @return array(prolog, epilog)
	 */
	public function finalize()
	{
		if ($this->used) {
			return ['Nette\Bridges\CacheLatte\CacheMacro::initRuntime($this);'];
		}
	}


	/**
	 * New node is found.
	 * @return bool
	 */
	public function nodeOpened(Latte\MacroNode $node)
	{
		if ($node->modifiers) {
			throw new Latte\CompileException('Modifiers are not allowed in ' . $node->getNotation());
		}

		$this->used = true;
		$node->empty = false;
		$node->openingCode = Latte\PhpWriter::using($node)
			->write(
				'<?php if (Nette\Bridges\CacheLatte\CacheMacro::createCache($this->global->cacheStorage, %var, $this->global->cacheStack, %node.array?)) /* line %var */ try { ?>',
				Nette\Utils\Random::generate(),
				$node->startLine
			);
	}


	/**
	 * Node is closed.
	 * @return void
	 */
	public function nodeClosed(Latte\MacroNode $node)
	{
		$node->closingCode = Latte\PhpWriter::using($node)
			->write(
				'<?php
				Nette\Bridges\CacheLatte\CacheMacro::endCache($this->global->cacheStack, %node.array?) /* line %var */;
				} catch (\Throwable $ʟ_e) {
					Nette\Bridges\CacheLatte\CacheMacro::rollback($this->global->cacheStack); throw $ʟ_e;
				} ?>',
				$node->startLine
			);
	}


	/********************* run-time helpers ****************d*g**/


	public static function initRuntime(Latte\Runtime\Template $template): void
	{
		if (!empty($template->global->cacheStack)) {
			$file = (new \ReflectionClass($template))->getFileName();
			if (@is_file($file)) { // @ - may trigger error
				end($template->global->cacheStack)->dependencies[Cache::Files][] = $file;
			}
		}
	}


	/**
	 * Starts the output cache. Returns Nette\Caching\OutputHelper object if buffering was started.
	 * @return Nette\Caching\OutputHelper|\stdClass
	 */
	public static function createCache(
		Nette\Caching\Storage $cacheStorage,
		string $key,
		?array &$parents,
		?array $args = null
	) {
		if ($args) {
			if (array_key_exists('if', $args) && !$args['if']) {
				return $parents[] = new \stdClass;
			}

			$key = array_merge([$key], array_intersect_key($args, range(0, count($args))));
		}

		if ($parents) {
			end($parents)->dependencies[Cache::Items][] = $key;
		}

		$cache = new Cache($cacheStorage, 'Nette.Templating.Cache');
		if ($helper = $cache->start($key)) {
			$parents[] = $helper;
		}

		return $helper;
	}


	/**
	 * Ends the output cache.
	 * @param  Nette\Caching\OutputHelper[]  $parents
	 */
	public static function endCache(array &$parents, ?array $args = null): void
	{
		$helper = array_pop($parents);
		if (!$helper instanceof Nette\Caching\OutputHelper) {
			return;
		}

		if (isset($args['dependencies'])) {
			$args += $args['dependencies']();
		}

		if (isset($args['expire'])) {
			$args['expiration'] = $args['expire']; // back compatibility
		}

		$helper->dependencies[Cache::Tags] = $args['tags'] ?? null;
		$helper->dependencies[Cache::Expire] = $args['expiration'] ?? '+ 7 days';
		$helper->end();
	}


	/**
	 * @param  Nette\Caching\OutputHelper[]  $parents
	 */
	public static function rollback(array &$parents): void
	{
		$helper = array_pop($parents);
		if ($helper instanceof Nette\Caching\OutputHelper) {
			$helper->rollback();
		}
	}
}

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