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							970 lines
						
					
					
						
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							970 lines
						
					
					
						
							27 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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 * Stores the Twig configuration.
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 *
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 * @author Fabien Potencier <fabien@symfony.com>
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 */
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class Twig_Environment
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{
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    const VERSION = '2.6.2';
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    const VERSION_ID = 20602;
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    const MAJOR_VERSION = 2;
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    const MINOR_VERSION = 6;
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    const RELEASE_VERSION = 2;
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    const EXTRA_VERSION = '';
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    private $charset;
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    private $loader;
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    private $debug;
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    private $autoReload;
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    private $cache;
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    private $lexer;
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    private $parser;
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    private $compiler;
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    private $baseTemplateClass;
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    private $globals = [];
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    private $resolvedGlobals;
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    private $loadedTemplates;
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    private $strictVariables;
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    private $templateClassPrefix = '__TwigTemplate_';
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    private $originalCache;
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    private $extensionSet;
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    private $runtimeLoaders = [];
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    private $runtimes = [];
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    private $optionsHash;
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    private $loading = [];
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    /**
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     * Constructor.
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     *
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     * Available options:
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     *
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     *  * debug: When set to true, it automatically set "auto_reload" to true as
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     *           well (default to false).
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     *
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     *  * charset: The charset used by the templates (default to UTF-8).
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     *
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     *  * base_template_class: The base template class to use for generated
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     *                         templates (default to Twig_Template).
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     *
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     *  * cache: An absolute path where to store the compiled templates,
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     *           a Twig_Cache_Interface implementation,
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     *           or false to disable compilation cache (default).
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     *
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     *  * auto_reload: Whether to reload the template if the original source changed.
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     *                 If you don't provide the auto_reload option, it will be
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     *                 determined automatically based on the debug value.
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     *
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     *  * strict_variables: Whether to ignore invalid variables in templates
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     *                      (default to false).
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     *
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     *  * autoescape: Whether to enable auto-escaping (default to html):
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     *                  * false: disable auto-escaping
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     *                  * html, js: set the autoescaping to one of the supported strategies
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     *                  * name: set the autoescaping strategy based on the template name extension
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     *                  * PHP callback: a PHP callback that returns an escaping strategy based on the template "name"
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     *
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     *  * optimizations: A flag that indicates which optimizations to apply
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     *                   (default to -1 which means that all optimizations are enabled;
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     *                   set it to 0 to disable).
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     *
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     * @param Twig_LoaderInterface $loader
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     * @param array                $options An array of options
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     */
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    public function __construct(Twig_LoaderInterface $loader, $options = [])
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    {
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        $this->setLoader($loader);
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        $options = array_merge([
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            'debug' => false,
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            'charset' => 'UTF-8',
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            'base_template_class' => 'Twig_Template',
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            'strict_variables' => false,
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            'autoescape' => 'html',
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            'cache' => false,
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            'auto_reload' => null,
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            'optimizations' => -1,
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        ], $options);
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        $this->debug = (bool) $options['debug'];
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        $this->setCharset($options['charset']);
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        $this->baseTemplateClass = $options['base_template_class'];
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        $this->autoReload = null === $options['auto_reload'] ? $this->debug : (bool) $options['auto_reload'];
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        $this->strictVariables = (bool) $options['strict_variables'];
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        $this->setCache($options['cache']);
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        $this->extensionSet = new Twig_ExtensionSet();
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        $this->addExtension(new Twig_Extension_Core());
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        $this->addExtension(new Twig_Extension_Escaper($options['autoescape']));
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        $this->addExtension(new Twig_Extension_Optimizer($options['optimizations']));
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    }
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    /**
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     * Gets the base template class for compiled templates.
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     *
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     * @return string The base template class name
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     */
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    public function getBaseTemplateClass()
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    {
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        return $this->baseTemplateClass;
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    }
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    /**
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     * Sets the base template class for compiled templates.
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     *
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     * @param string $class The base template class name
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     */
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    public function setBaseTemplateClass($class)
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    {
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        $this->baseTemplateClass = $class;
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        $this->updateOptionsHash();
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    }
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    /**
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     * Enables debugging mode.
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     */
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    public function enableDebug()
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    {
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        $this->debug = true;
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        $this->updateOptionsHash();
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    }
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    /**
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     * Disables debugging mode.
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     */
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    public function disableDebug()
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    {
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        $this->debug = false;
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        $this->updateOptionsHash();
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    }
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    /**
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     * Checks if debug mode is enabled.
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     *
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     * @return bool true if debug mode is enabled, false otherwise
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     */
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    public function isDebug()
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    {
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        return $this->debug;
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    }
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    /**
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     * Enables the auto_reload option.
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     */
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    public function enableAutoReload()
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    {
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        $this->autoReload = true;
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    }
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    /**
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     * Disables the auto_reload option.
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     */
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    public function disableAutoReload()
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    {
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        $this->autoReload = false;
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    }
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    /**
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     * Checks if the auto_reload option is enabled.
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     *
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     * @return bool true if auto_reload is enabled, false otherwise
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     */
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    public function isAutoReload()
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    {
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        return $this->autoReload;
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    }
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    /**
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     * Enables the strict_variables option.
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     */
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    public function enableStrictVariables()
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    {
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        $this->strictVariables = true;
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        $this->updateOptionsHash();
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    }
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    /**
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     * Disables the strict_variables option.
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     */
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    public function disableStrictVariables()
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    {
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        $this->strictVariables = false;
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        $this->updateOptionsHash();
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    }
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    /**
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     * Checks if the strict_variables option is enabled.
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     *
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     * @return bool true if strict_variables is enabled, false otherwise
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     */
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    public function isStrictVariables()
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    {
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        return $this->strictVariables;
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    }
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    /**
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     * Gets the current cache implementation.
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     *
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     * @param bool $original Whether to return the original cache option or the real cache instance
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     *
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     * @return Twig_CacheInterface|string|false A Twig_CacheInterface implementation,
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     *                                          an absolute path to the compiled templates,
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     *                                          or false to disable cache
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     */
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    public function getCache($original = true)
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    {
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        return $original ? $this->originalCache : $this->cache;
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    }
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    /**
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     * Sets the current cache implementation.
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     *
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     * @param Twig_CacheInterface|string|false $cache A Twig_CacheInterface implementation,
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     *                                                an absolute path to the compiled templates,
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     *                                                or false to disable cache
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     */
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    public function setCache($cache)
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    {
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        if (is_string($cache)) {
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            $this->originalCache = $cache;
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            $this->cache = new Twig_Cache_Filesystem($cache);
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        } elseif (false === $cache) {
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            $this->originalCache = $cache;
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            $this->cache = new Twig_Cache_Null();
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        } elseif ($cache instanceof Twig_CacheInterface) {
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            $this->originalCache = $this->cache = $cache;
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        } else {
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            throw new LogicException(sprintf('Cache can only be a string, false, or a Twig_CacheInterface implementation.'));
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        }
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    }
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    /**
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     * Gets the template class associated with the given string.
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     *
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     * The generated template class is based on the following parameters:
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     *
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     *  * The cache key for the given template;
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     *  * The currently enabled extensions;
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     *  * Whether the Twig C extension is available or not;
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     *  * PHP version;
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     *  * Twig version;
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     *  * Options with what environment was created.
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     *
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     * @param string   $name  The name for which to calculate the template class name
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     * @param int|null $index The index if it is an embedded template
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     *
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     * @return string The template class name
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     */
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    public function getTemplateClass($name, $index = null)
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    {
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        $key = $this->getLoader()->getCacheKey($name).$this->optionsHash;
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        return $this->templateClassPrefix.hash('sha256', $key).(null === $index ? '' : '_'.$index);
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    }
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    /**
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     * Renders a template.
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     *
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     * @param string $name    The template name
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     * @param array  $context An array of parameters to pass to the template
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     *
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     * @return string The rendered template
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     *
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     * @throws Twig_Error_Loader  When the template cannot be found
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     * @throws Twig_Error_Syntax  When an error occurred during compilation
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     * @throws Twig_Error_Runtime When an error occurred during rendering
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     */
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    public function render($name, array $context = [])
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    {
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        return $this->loadTemplate($name)->render($context);
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    }
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    /**
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     * Displays a template.
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     *
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     * @param string $name    The template name
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						|
     * @param array  $context An array of parameters to pass to the template
 | 
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     *
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     * @throws Twig_Error_Loader  When the template cannot be found
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     * @throws Twig_Error_Syntax  When an error occurred during compilation
 | 
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     * @throws Twig_Error_Runtime When an error occurred during rendering
 | 
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     */
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    public function display($name, array $context = [])
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    {
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        $this->loadTemplate($name)->display($context);
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    }
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    /**
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     * Loads a template.
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     *
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     * @param string|Twig_TemplateWrapper|Twig_Template $name The template name
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     *
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     * @throws Twig_Error_Loader  When the template cannot be found
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     * @throws Twig_Error_Runtime When a previously generated cache is corrupted
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     * @throws Twig_Error_Syntax  When an error occurred during compilation
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     *
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     * @return Twig_TemplateWrapper
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     */
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    public function load($name)
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    {
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        if ($name instanceof Twig_TemplateWrapper) {
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            return $name;
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        }
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        if ($name instanceof Twig_Template) {
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            return new Twig_TemplateWrapper($this, $name);
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        }
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        return new Twig_TemplateWrapper($this, $this->loadTemplate($name));
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    }
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						|
    /**
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     * Loads a template internal representation.
 | 
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     *
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     * This method is for internal use only and should never be called
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     * directly.
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     *
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     * @param string $name  The template name
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     * @param int    $index The index if it is an embedded template
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     *
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     * @return Twig_Template A template instance representing the given template name
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     *
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     * @throws Twig_Error_Loader  When the template cannot be found
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     * @throws Twig_Error_Runtime When a previously generated cache is corrupted
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     * @throws Twig_Error_Syntax  When an error occurred during compilation
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     *
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     * @internal
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     */
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    public function loadTemplate($name, $index = null)
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    {
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        $cls = $mainCls = $this->getTemplateClass($name);
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        if (null !== $index) {
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            $cls .= '_'.$index;
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        }
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						|
        if (isset($this->loadedTemplates[$cls])) {
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            return $this->loadedTemplates[$cls];
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        }
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 | 
						|
        if (!class_exists($cls, false)) {
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            $key = $this->cache->generateKey($name, $mainCls);
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 | 
						|
            if (!$this->isAutoReload() || $this->isTemplateFresh($name, $this->cache->getTimestamp($key))) {
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                $this->cache->load($key);
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            }
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 | 
						|
            if (!class_exists($cls, false)) {
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                $source = $this->getLoader()->getSourceContext($name);
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                $content = $this->compileSource($source);
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						|
                $this->cache->write($key, $content);
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						|
                $this->cache->load($key);
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						|
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						|
                if (!class_exists($mainCls, false)) {
 | 
						|
                    /* Last line of defense if either $this->bcWriteCacheFile was used,
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                     * $this->cache is implemented as a no-op or we have a race condition
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                     * where the cache was cleared between the above calls to write to and load from
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                     * the cache.
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						|
                     */
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						|
                    eval('?>'.$content);
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						|
                }
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						|
 | 
						|
                if (!class_exists($cls, false)) {
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						|
                    throw new Twig_Error_Runtime(sprintf('Failed to load Twig template "%s", index "%s": cache is corrupted.', $name, $index), -1, $source);
 | 
						|
                }
 | 
						|
            }
 | 
						|
        }
 | 
						|
 | 
						|
        // to be removed in 3.0
 | 
						|
        $this->extensionSet->initRuntime($this);
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						|
 | 
						|
        if (isset($this->loading[$cls])) {
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						|
            throw new Twig_Error_Runtime(sprintf('Circular reference detected for Twig template "%s", path: %s.', $name, implode(' -> ', array_merge($this->loading, [$name]))));
 | 
						|
        }
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 | 
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        $this->loading[$cls] = $name;
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						|
 | 
						|
        try {
 | 
						|
            $this->loadedTemplates[$cls] = new $cls($this);
 | 
						|
        } finally {
 | 
						|
            unset($this->loading[$cls]);
 | 
						|
        }
 | 
						|
 | 
						|
        return $this->loadedTemplates[$cls];
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Creates a template from source.
 | 
						|
     *
 | 
						|
     * This method should not be used as a generic way to load templates.
 | 
						|
     *
 | 
						|
     * @param string $template The template name
 | 
						|
     *
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						|
     * @return Twig_Template A template instance representing the given template name
 | 
						|
     *
 | 
						|
     * @throws Twig_Error_Loader When the template cannot be found
 | 
						|
     * @throws Twig_Error_Syntax When an error occurred during compilation
 | 
						|
     */
 | 
						|
    public function createTemplate($template)
 | 
						|
    {
 | 
						|
        $name = sprintf('__string_template__%s', hash('sha256', $template, false));
 | 
						|
 | 
						|
        $loader = new Twig_Loader_Chain([
 | 
						|
            new Twig_Loader_Array([$name => $template]),
 | 
						|
            $current = $this->getLoader(),
 | 
						|
        ]);
 | 
						|
 | 
						|
        $this->setLoader($loader);
 | 
						|
        try {
 | 
						|
            $template = $this->loadTemplate($name);
 | 
						|
        } finally {
 | 
						|
            $this->setLoader($current);
 | 
						|
        }
 | 
						|
 | 
						|
        return $template;
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Returns true if the template is still fresh.
 | 
						|
     *
 | 
						|
     * Besides checking the loader for freshness information,
 | 
						|
     * this method also checks if the enabled extensions have
 | 
						|
     * not changed.
 | 
						|
     *
 | 
						|
     * @param string $name The template name
 | 
						|
     * @param int    $time The last modification time of the cached template
 | 
						|
     *
 | 
						|
     * @return bool true if the template is fresh, false otherwise
 | 
						|
     */
 | 
						|
    public function isTemplateFresh($name, $time)
 | 
						|
    {
 | 
						|
        return $this->extensionSet->getLastModified() <= $time && $this->getLoader()->isFresh($name, $time);
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Tries to load a template consecutively from an array.
 | 
						|
     *
 | 
						|
     * Similar to loadTemplate() but it also accepts instances of Twig_Template and
 | 
						|
     * Twig_TemplateWrapper, and an array of templates where each is tried to be loaded.
 | 
						|
     *
 | 
						|
     * @param string|Twig_Template|Twig_TemplateWrapper|array $names A template or an array of templates to try consecutively
 | 
						|
     *
 | 
						|
     * @return Twig_Template|Twig_TemplateWrapper
 | 
						|
     *
 | 
						|
     * @throws Twig_Error_Loader When none of the templates can be found
 | 
						|
     * @throws Twig_Error_Syntax When an error occurred during compilation
 | 
						|
     */
 | 
						|
    public function resolveTemplate($names)
 | 
						|
    {
 | 
						|
        if (!is_array($names)) {
 | 
						|
            $names = [$names];
 | 
						|
        }
 | 
						|
 | 
						|
        foreach ($names as $name) {
 | 
						|
            if ($name instanceof Twig_Template) {
 | 
						|
                return $name;
 | 
						|
            }
 | 
						|
 | 
						|
            if ($name instanceof Twig_TemplateWrapper) {
 | 
						|
                return $name;
 | 
						|
            }
 | 
						|
 | 
						|
            try {
 | 
						|
                return $this->loadTemplate($name);
 | 
						|
            } catch (Twig_Error_Loader $e) {
 | 
						|
            }
 | 
						|
        }
 | 
						|
 | 
						|
        if (1 === count($names)) {
 | 
						|
            throw $e;
 | 
						|
        }
 | 
						|
 | 
						|
        throw new Twig_Error_Loader(sprintf('Unable to find one of the following templates: "%s".', implode('", "', $names)));
 | 
						|
    }
 | 
						|
 | 
						|
    public function setLexer(Twig_Lexer $lexer)
 | 
						|
    {
 | 
						|
        $this->lexer = $lexer;
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Tokenizes a source code.
 | 
						|
     *
 | 
						|
     * @return Twig_TokenStream
 | 
						|
     *
 | 
						|
     * @throws Twig_Error_Syntax When the code is syntactically wrong
 | 
						|
     */
 | 
						|
    public function tokenize(Twig_Source $source)
 | 
						|
    {
 | 
						|
        if (null === $this->lexer) {
 | 
						|
            $this->lexer = new Twig_Lexer($this);
 | 
						|
        }
 | 
						|
 | 
						|
        return $this->lexer->tokenize($source);
 | 
						|
    }
 | 
						|
 | 
						|
    public function setParser(Twig_Parser $parser)
 | 
						|
    {
 | 
						|
        $this->parser = $parser;
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Converts a token stream to a node tree.
 | 
						|
     *
 | 
						|
     * @return Twig_Node_Module
 | 
						|
     *
 | 
						|
     * @throws Twig_Error_Syntax When the token stream is syntactically or semantically wrong
 | 
						|
     */
 | 
						|
    public function parse(Twig_TokenStream $stream)
 | 
						|
    {
 | 
						|
        if (null === $this->parser) {
 | 
						|
            $this->parser = new Twig_Parser($this);
 | 
						|
        }
 | 
						|
 | 
						|
        return $this->parser->parse($stream);
 | 
						|
    }
 | 
						|
 | 
						|
    public function setCompiler(Twig_Compiler $compiler)
 | 
						|
    {
 | 
						|
        $this->compiler = $compiler;
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Compiles a node and returns the PHP code.
 | 
						|
     *
 | 
						|
     * @return string The compiled PHP source code
 | 
						|
     */
 | 
						|
    public function compile(Twig_Node $node)
 | 
						|
    {
 | 
						|
        if (null === $this->compiler) {
 | 
						|
            $this->compiler = new Twig_Compiler($this);
 | 
						|
        }
 | 
						|
 | 
						|
        return $this->compiler->compile($node)->getSource();
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Compiles a template source code.
 | 
						|
     *
 | 
						|
     * @return string The compiled PHP source code
 | 
						|
     *
 | 
						|
     * @throws Twig_Error_Syntax When there was an error during tokenizing, parsing or compiling
 | 
						|
     */
 | 
						|
    public function compileSource(Twig_Source $source)
 | 
						|
    {
 | 
						|
        try {
 | 
						|
            return $this->compile($this->parse($this->tokenize($source)));
 | 
						|
        } catch (Twig_Error $e) {
 | 
						|
            $e->setSourceContext($source);
 | 
						|
            throw $e;
 | 
						|
        } catch (Exception $e) {
 | 
						|
            throw new Twig_Error_Syntax(sprintf('An exception has been thrown during the compilation of a template ("%s").', $e->getMessage()), -1, $source, $e);
 | 
						|
        }
 | 
						|
    }
 | 
						|
 | 
						|
    public function setLoader(Twig_LoaderInterface $loader)
 | 
						|
    {
 | 
						|
        $this->loader = $loader;
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Gets the Loader instance.
 | 
						|
     *
 | 
						|
     * @return Twig_LoaderInterface
 | 
						|
     */
 | 
						|
    public function getLoader()
 | 
						|
    {
 | 
						|
        return $this->loader;
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Sets the default template charset.
 | 
						|
     *
 | 
						|
     * @param string $charset The default charset
 | 
						|
     */
 | 
						|
    public function setCharset($charset)
 | 
						|
    {
 | 
						|
        if ('UTF8' === $charset = strtoupper($charset)) {
 | 
						|
            // iconv on Windows requires "UTF-8" instead of "UTF8"
 | 
						|
            $charset = 'UTF-8';
 | 
						|
        }
 | 
						|
 | 
						|
        $this->charset = $charset;
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Gets the default template charset.
 | 
						|
     *
 | 
						|
     * @return string The default charset
 | 
						|
     */
 | 
						|
    public function getCharset()
 | 
						|
    {
 | 
						|
        return $this->charset;
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Returns true if the given extension is registered.
 | 
						|
     *
 | 
						|
     * @param string $class The extension class name
 | 
						|
     *
 | 
						|
     * @return bool Whether the extension is registered or not
 | 
						|
     */
 | 
						|
    public function hasExtension($class)
 | 
						|
    {
 | 
						|
        return $this->extensionSet->hasExtension($class);
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Adds a runtime loader.
 | 
						|
     */
 | 
						|
    public function addRuntimeLoader(Twig_RuntimeLoaderInterface $loader)
 | 
						|
    {
 | 
						|
        $this->runtimeLoaders[] = $loader;
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Gets an extension by class name.
 | 
						|
     *
 | 
						|
     * @param string $class The extension class name
 | 
						|
     *
 | 
						|
     * @return Twig_ExtensionInterface
 | 
						|
     */
 | 
						|
    public function getExtension($class)
 | 
						|
    {
 | 
						|
        return $this->extensionSet->getExtension($class);
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Returns the runtime implementation of a Twig element (filter/function/test).
 | 
						|
     *
 | 
						|
     * @param string $class A runtime class name
 | 
						|
     *
 | 
						|
     * @return object The runtime implementation
 | 
						|
     *
 | 
						|
     * @throws Twig_Error_Runtime When the template cannot be found
 | 
						|
     */
 | 
						|
    public function getRuntime($class)
 | 
						|
    {
 | 
						|
        if (isset($this->runtimes[$class])) {
 | 
						|
            return $this->runtimes[$class];
 | 
						|
        }
 | 
						|
 | 
						|
        foreach ($this->runtimeLoaders as $loader) {
 | 
						|
            if (null !== $runtime = $loader->load($class)) {
 | 
						|
                return $this->runtimes[$class] = $runtime;
 | 
						|
            }
 | 
						|
        }
 | 
						|
 | 
						|
        throw new Twig_Error_Runtime(sprintf('Unable to load the "%s" runtime.', $class));
 | 
						|
    }
 | 
						|
 | 
						|
    public function addExtension(Twig_ExtensionInterface $extension)
 | 
						|
    {
 | 
						|
        $this->extensionSet->addExtension($extension);
 | 
						|
        $this->updateOptionsHash();
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Registers an array of extensions.
 | 
						|
     *
 | 
						|
     * @param array $extensions An array of extensions
 | 
						|
     */
 | 
						|
    public function setExtensions(array $extensions)
 | 
						|
    {
 | 
						|
        $this->extensionSet->setExtensions($extensions);
 | 
						|
        $this->updateOptionsHash();
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Returns all registered extensions.
 | 
						|
     *
 | 
						|
     * @return Twig_ExtensionInterface[] An array of extensions (keys are for internal usage only and should not be relied on)
 | 
						|
     */
 | 
						|
    public function getExtensions()
 | 
						|
    {
 | 
						|
        return $this->extensionSet->getExtensions();
 | 
						|
    }
 | 
						|
 | 
						|
    public function addTokenParser(Twig_TokenParserInterface $parser)
 | 
						|
    {
 | 
						|
        $this->extensionSet->addTokenParser($parser);
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Gets the registered Token Parsers.
 | 
						|
     *
 | 
						|
     * @return Twig_TokenParserInterface[]
 | 
						|
     *
 | 
						|
     * @internal
 | 
						|
     */
 | 
						|
    public function getTokenParsers()
 | 
						|
    {
 | 
						|
        return $this->extensionSet->getTokenParsers();
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Gets registered tags.
 | 
						|
     *
 | 
						|
     * @return Twig_TokenParserInterface[]
 | 
						|
     *
 | 
						|
     * @internal
 | 
						|
     */
 | 
						|
    public function getTags()
 | 
						|
    {
 | 
						|
        $tags = [];
 | 
						|
        foreach ($this->getTokenParsers() as $parser) {
 | 
						|
            $tags[$parser->getTag()] = $parser;
 | 
						|
        }
 | 
						|
 | 
						|
        return $tags;
 | 
						|
    }
 | 
						|
 | 
						|
    public function addNodeVisitor(Twig_NodeVisitorInterface $visitor)
 | 
						|
    {
 | 
						|
        $this->extensionSet->addNodeVisitor($visitor);
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Gets the registered Node Visitors.
 | 
						|
     *
 | 
						|
     * @return Twig_NodeVisitorInterface[]
 | 
						|
     *
 | 
						|
     * @internal
 | 
						|
     */
 | 
						|
    public function getNodeVisitors()
 | 
						|
    {
 | 
						|
        return $this->extensionSet->getNodeVisitors();
 | 
						|
    }
 | 
						|
 | 
						|
    public function addFilter(Twig_Filter $filter)
 | 
						|
    {
 | 
						|
        $this->extensionSet->addFilter($filter);
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Get a filter by name.
 | 
						|
     *
 | 
						|
     * Subclasses may override this method and load filters differently;
 | 
						|
     * so no list of filters is available.
 | 
						|
     *
 | 
						|
     * @param string $name The filter name
 | 
						|
     *
 | 
						|
     * @return Twig_Filter|false A Twig_Filter instance or false if the filter does not exist
 | 
						|
     *
 | 
						|
     * @internal
 | 
						|
     */
 | 
						|
    public function getFilter($name)
 | 
						|
    {
 | 
						|
        return $this->extensionSet->getFilter($name);
 | 
						|
    }
 | 
						|
 | 
						|
    public function registerUndefinedFilterCallback(callable $callable)
 | 
						|
    {
 | 
						|
        $this->extensionSet->registerUndefinedFilterCallback($callable);
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Gets the registered Filters.
 | 
						|
     *
 | 
						|
     * Be warned that this method cannot return filters defined with registerUndefinedFilterCallback.
 | 
						|
     *
 | 
						|
     * @return Twig_Filter[]
 | 
						|
     *
 | 
						|
     * @see registerUndefinedFilterCallback
 | 
						|
     *
 | 
						|
     * @internal
 | 
						|
     */
 | 
						|
    public function getFilters()
 | 
						|
    {
 | 
						|
        return $this->extensionSet->getFilters();
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Registers a Test.
 | 
						|
     *
 | 
						|
     * @param Twig_Test $test A Twig_Test instance
 | 
						|
     */
 | 
						|
    public function addTest(Twig_Test $test)
 | 
						|
    {
 | 
						|
        $this->extensionSet->addTest($test);
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Gets the registered Tests.
 | 
						|
     *
 | 
						|
     * @return Twig_Test[]
 | 
						|
     *
 | 
						|
     * @internal
 | 
						|
     */
 | 
						|
    public function getTests()
 | 
						|
    {
 | 
						|
        return $this->extensionSet->getTests();
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Gets a test by name.
 | 
						|
     *
 | 
						|
     * @param string $name The test name
 | 
						|
     *
 | 
						|
     * @return Twig_Test|false A Twig_Test instance or false if the test does not exist
 | 
						|
     *
 | 
						|
     * @internal
 | 
						|
     */
 | 
						|
    public function getTest($name)
 | 
						|
    {
 | 
						|
        return $this->extensionSet->getTest($name);
 | 
						|
    }
 | 
						|
 | 
						|
    public function addFunction(Twig_Function $function)
 | 
						|
    {
 | 
						|
        $this->extensionSet->addFunction($function);
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Get a function by name.
 | 
						|
     *
 | 
						|
     * Subclasses may override this method and load functions differently;
 | 
						|
     * so no list of functions is available.
 | 
						|
     *
 | 
						|
     * @param string $name function name
 | 
						|
     *
 | 
						|
     * @return Twig_Function|false A Twig_Function instance or false if the function does not exist
 | 
						|
     *
 | 
						|
     * @internal
 | 
						|
     */
 | 
						|
    public function getFunction($name)
 | 
						|
    {
 | 
						|
        return $this->extensionSet->getFunction($name);
 | 
						|
    }
 | 
						|
 | 
						|
    public function registerUndefinedFunctionCallback(callable $callable)
 | 
						|
    {
 | 
						|
        $this->extensionSet->registerUndefinedFunctionCallback($callable);
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Gets registered functions.
 | 
						|
     *
 | 
						|
     * Be warned that this method cannot return functions defined with registerUndefinedFunctionCallback.
 | 
						|
     *
 | 
						|
     * @return Twig_Function[]
 | 
						|
     *
 | 
						|
     * @see registerUndefinedFunctionCallback
 | 
						|
     *
 | 
						|
     * @internal
 | 
						|
     */
 | 
						|
    public function getFunctions()
 | 
						|
    {
 | 
						|
        return $this->extensionSet->getFunctions();
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Registers a Global.
 | 
						|
     *
 | 
						|
     * New globals can be added before compiling or rendering a template;
 | 
						|
     * but after, you can only update existing globals.
 | 
						|
     *
 | 
						|
     * @param string $name  The global name
 | 
						|
     * @param mixed  $value The global value
 | 
						|
     */
 | 
						|
    public function addGlobal($name, $value)
 | 
						|
    {
 | 
						|
        if ($this->extensionSet->isInitialized() && !array_key_exists($name, $this->getGlobals())) {
 | 
						|
            throw new LogicException(sprintf('Unable to add global "%s" as the runtime or the extensions have already been initialized.', $name));
 | 
						|
        }
 | 
						|
 | 
						|
        if (null !== $this->resolvedGlobals) {
 | 
						|
            $this->resolvedGlobals[$name] = $value;
 | 
						|
        } else {
 | 
						|
            $this->globals[$name] = $value;
 | 
						|
        }
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Gets the registered Globals.
 | 
						|
     *
 | 
						|
     * @return array An array of globals
 | 
						|
     *
 | 
						|
     * @internal
 | 
						|
     */
 | 
						|
    public function getGlobals()
 | 
						|
    {
 | 
						|
        if ($this->extensionSet->isInitialized()) {
 | 
						|
            if (null === $this->resolvedGlobals) {
 | 
						|
                $this->resolvedGlobals = array_merge($this->extensionSet->getGlobals(), $this->globals);
 | 
						|
            }
 | 
						|
 | 
						|
            return $this->resolvedGlobals;
 | 
						|
        }
 | 
						|
 | 
						|
        return array_merge($this->extensionSet->getGlobals(), $this->globals);
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Merges a context with the defined globals.
 | 
						|
     *
 | 
						|
     * @param array $context An array representing the context
 | 
						|
     *
 | 
						|
     * @return array The context merged with the globals
 | 
						|
     */
 | 
						|
    public function mergeGlobals(array $context)
 | 
						|
    {
 | 
						|
        // we don't use array_merge as the context being generally
 | 
						|
        // bigger than globals, this code is faster.
 | 
						|
        foreach ($this->getGlobals() as $key => $value) {
 | 
						|
            if (!array_key_exists($key, $context)) {
 | 
						|
                $context[$key] = $value;
 | 
						|
            }
 | 
						|
        }
 | 
						|
 | 
						|
        return $context;
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Gets the registered unary Operators.
 | 
						|
     *
 | 
						|
     * @return array An array of unary operators
 | 
						|
     *
 | 
						|
     * @internal
 | 
						|
     */
 | 
						|
    public function getUnaryOperators()
 | 
						|
    {
 | 
						|
        return $this->extensionSet->getUnaryOperators();
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Gets the registered binary Operators.
 | 
						|
     *
 | 
						|
     * @return array An array of binary operators
 | 
						|
     *
 | 
						|
     * @internal
 | 
						|
     */
 | 
						|
    public function getBinaryOperators()
 | 
						|
    {
 | 
						|
        return $this->extensionSet->getBinaryOperators();
 | 
						|
    }
 | 
						|
 | 
						|
    private function updateOptionsHash()
 | 
						|
    {
 | 
						|
        $this->optionsHash = implode(':', [
 | 
						|
            $this->extensionSet->getSignature(),
 | 
						|
            PHP_MAJOR_VERSION,
 | 
						|
            PHP_MINOR_VERSION,
 | 
						|
            self::VERSION,
 | 
						|
            (int) $this->debug,
 | 
						|
            $this->baseTemplateClass,
 | 
						|
            (int) $this->strictVariables,
 | 
						|
        ]);
 | 
						|
    }
 | 
						|
}
 | 
						|
 | 
						|
class_alias('Twig_Environment', 'Twig\Environment', false);
 | 
						|
 |