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108 lines
3.0 KiB
108 lines
3.0 KiB
<?php
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/*
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* This file is part of Twig.
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*
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* (c) Fabien Potencier
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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/**
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* Loads templates from other loaders.
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*
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* @author Fabien Potencier <fabien@symfony.com>
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*/
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final class Twig_Loader_Chain implements Twig_LoaderInterface, Twig_ExistsLoaderInterface, Twig_SourceContextLoaderInterface
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{
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private $hasSourceCache = array();
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private $loaders = array();
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/**
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* @param Twig_LoaderInterface[] $loaders
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*/
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public function __construct(array $loaders = array())
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{
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foreach ($loaders as $loader) {
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$this->addLoader($loader);
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}
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}
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public function addLoader(Twig_LoaderInterface $loader)
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{
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$this->loaders[] = $loader;
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$this->hasSourceCache = array();
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}
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public function getSourceContext($name)
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{
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$exceptions = array();
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foreach ($this->loaders as $loader) {
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if (!$loader->exists($name)) {
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continue;
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}
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try {
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return $loader->getSourceContext($name);
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} catch (Twig_Error_Loader $e) {
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$exceptions[] = $e->getMessage();
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}
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}
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throw new Twig_Error_Loader(sprintf('Template "%s" is not defined%s.', $name, $exceptions ? ' ('.implode(', ', $exceptions).')' : ''));
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}
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public function exists($name)
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{
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if (isset($this->hasSourceCache[$name])) {
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return $this->hasSourceCache[$name];
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}
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foreach ($this->loaders as $loader) {
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if ($loader->exists($name)) {
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return $this->hasSourceCache[$name] = true;
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}
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}
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return $this->hasSourceCache[$name] = false;
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}
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public function getCacheKey($name)
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{
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$exceptions = array();
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foreach ($this->loaders as $loader) {
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if (!$loader->exists($name)) {
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continue;
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}
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try {
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return $loader->getCacheKey($name);
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} catch (Twig_Error_Loader $e) {
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$exceptions[] = get_class($loader).': '.$e->getMessage();
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}
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}
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throw new Twig_Error_Loader(sprintf('Template "%s" is not defined%s.', $name, $exceptions ? ' ('.implode(', ', $exceptions).')' : ''));
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}
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public function isFresh($name, $time)
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{
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$exceptions = array();
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foreach ($this->loaders as $loader) {
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if (!$loader->exists($name)) {
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continue;
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}
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try {
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return $loader->isFresh($name, $time);
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} catch (Twig_Error_Loader $e) {
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$exceptions[] = get_class($loader).': '.$e->getMessage();
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}
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}
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throw new Twig_Error_Loader(sprintf('Template "%s" is not defined%s.', $name, $exceptions ? ' ('.implode(', ', $exceptions).')' : ''));
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}
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}
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class_alias('Twig_Loader_Chain', 'Twig\Loader\ChainLoader', false);
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