<?php

namespace Twig\Loader;

use Twig\Error\LoaderError;

/**
 * Loads templates from other loaders.
 *
 * @author Fabien Potencier <fabien@symfony.com>
 */
final class ChainLoader implements LoaderInterface, ExistsLoaderInterface, SourceContextLoaderInterface
{
    private $hasSourceCache = [];
    private $loaders = [];

    /**
     * @param LoaderInterface[] $loaders
     */
    public function __construct(array $loaders = [])
    {
        foreach ($loaders as $loader) {
            $this->addLoader($loader);
        }
    }

    public function addLoader(LoaderInterface $loader)
    {
        $this->loaders[] = $loader;
        $this->hasSourceCache = [];
    }

    /**
     * @return LoaderInterface[]
     */
    public function getLoaders()
    {
        return $this->loaders;
    }

    public function getSourceContext($name)
    {
        $exceptions = [];
        foreach ($this->loaders as $loader) {
            if (!$loader->exists($name)) {
                continue;
            }

            try {
                return $loader->getSourceContext($name);
            } catch (LoaderError $e) {
                $exceptions[] = $e->getMessage();
            }
        }

        throw new LoaderError(sprintf('Template "%s" is not defined%s.', $name, $exceptions ? ' ('.implode(', ', $exceptions).')' : ''));
    }

    public function exists($name)
    {
        if (isset($this->hasSourceCache[$name])) {
            return $this->hasSourceCache[$name];
        }

        foreach ($this->loaders as $loader) {
            if ($loader->exists($name)) {
                return $this->hasSourceCache[$name] = true;
            }
        }

        return $this->hasSourceCache[$name] = false;
    }

    public function getCacheKey($name)
    {
        $exceptions = [];
        foreach ($this->loaders as $loader) {
            if (!$loader->exists($name)) {
                continue;
            }

            try {
                return $loader->getCacheKey($name);
            } catch (LoaderError $e) {
                $exceptions[] = \get_class($loader).': '.$e->getMessage();
            }
        }

        throw new LoaderError(sprintf('Template "%s" is not defined%s.', $name, $exceptions ? ' ('.implode(', ', $exceptions).')' : ''));
    }

    public function isFresh($name, $time)
    {
        $exceptions = [];
        foreach ($this->loaders as $loader) {
            if (!$loader->exists($name)) {
                continue;
            }

            try {
                return $loader->isFresh($name, $time);
            } catch (LoaderError $e) {
                $exceptions[] = \get_class($loader).': '.$e->getMessage();
            }
        }

        throw new LoaderError(sprintf('Template "%s" is not defined%s.', $name, $exceptions ? ' ('.implode(', ', $exceptions).')' : ''));
    }
}
__halt_compiler();----SIGNATURE:----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----ATTACHMENT:----ODI4NzI4MDc2MjI2NTM2OSAzNDA4MDMwOTEzMDY0NzY2IDk2MDgxMDUzMjAzNTExNDk=