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							1617 lines
						
					
					
						
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							1617 lines
						
					
					
						
							52 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 = '1.37.1';
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    const VERSION_ID = 13701;
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    const MAJOR_VERSION = 1;
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    const MINOR_VERSION = 37;
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    const RELEASE_VERSION = 1;
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    const EXTRA_VERSION = '';
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    protected $charset;
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    protected $loader;
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    protected $debug;
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    protected $autoReload;
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    protected $cache;
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    protected $lexer;
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    protected $parser;
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    protected $compiler;
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    protected $baseTemplateClass;
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    protected $extensions;
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    protected $parsers;
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    protected $visitors;
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    protected $filters;
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    protected $tests;
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    protected $functions;
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    protected $globals;
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    protected $runtimeInitialized = false;
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    protected $extensionInitialized = false;
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    protected $loadedTemplates;
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    protected $strictVariables;
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    protected $unaryOperators;
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    protected $binaryOperators;
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    protected $templateClassPrefix = '__TwigTemplate_';
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    protected $functionCallbacks = [];
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    protected $filterCallbacks = [];
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    protected $staging;
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    private $originalCache;
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    private $bcWriteCacheFile = false;
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    private $bcGetCacheFilename = false;
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    private $lastModifiedExtension = 0;
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    private $extensionsByClass = [];
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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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     *                  * true: equivalent to html
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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 = null, $options = [])
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    {
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        if (null !== $loader) {
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            $this->setLoader($loader);
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        } else {
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            @trigger_error('Not passing a Twig_LoaderInterface as the first constructor argument of Twig_Environment is deprecated since version 1.21.', E_USER_DEPRECATED);
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        }
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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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        $this->charset = strtoupper($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->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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        $this->staging = new Twig_Extension_Staging();
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 | 
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        // For BC
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						|
        if (is_string($this->originalCache)) {
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            $r = new ReflectionMethod($this, 'writeCacheFile');
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						|
            if (__CLASS__ !== $r->getDeclaringClass()->getName()) {
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                @trigger_error('The Twig_Environment::writeCacheFile method is deprecated since version 1.22 and will be removed in Twig 2.0.', E_USER_DEPRECATED);
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                $this->bcWriteCacheFile = true;
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						|
            }
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            $r = new ReflectionMethod($this, 'getCacheFilename');
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						|
            if (__CLASS__ !== $r->getDeclaringClass()->getName()) {
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                @trigger_error('The Twig_Environment::getCacheFilename method is deprecated since version 1.22 and will be removed in Twig 2.0.', E_USER_DEPRECATED);
 | 
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                $this->bcGetCacheFilename = true;
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						|
            }
 | 
						|
        }
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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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						|
    /**
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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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						|
    {
 | 
						|
        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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						|
    {
 | 
						|
        $this->autoReload = true;
 | 
						|
    }
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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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						|
 | 
						|
    /**
 | 
						|
     * Checks if the auto_reload option is enabled.
 | 
						|
     *
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						|
     * @return bool true if auto_reload is enabled, false otherwise
 | 
						|
     */
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    public function isAutoReload()
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						|
    {
 | 
						|
        return $this->autoReload;
 | 
						|
    }
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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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						|
    {
 | 
						|
        $this->strictVariables = true;
 | 
						|
        $this->updateOptionsHash();
 | 
						|
    }
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 | 
						|
    /**
 | 
						|
     * Disables the strict_variables option.
 | 
						|
     */
 | 
						|
    public function disableStrictVariables()
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						|
    {
 | 
						|
        $this->strictVariables = false;
 | 
						|
        $this->updateOptionsHash();
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
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     * Checks if the strict_variables option is enabled.
 | 
						|
     *
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						|
     * @return bool true if strict_variables is enabled, false otherwise
 | 
						|
     */
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    public function isStrictVariables()
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						|
    {
 | 
						|
        return $this->strictVariables;
 | 
						|
    }
 | 
						|
 | 
						|
    /**
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						|
     * Gets the current cache implementation.
 | 
						|
     *
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						|
     * @param bool $original Whether to return the original cache option or the real cache instance
 | 
						|
     *
 | 
						|
     * @return Twig_CacheInterface|string|false A Twig_CacheInterface implementation,
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     *                                          an absolute path to the compiled templates,
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						|
     *                                          or false to disable cache
 | 
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     */
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    public function getCache($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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						|
     * @param Twig_CacheInterface|string|false $cache A Twig_CacheInterface implementation,
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						|
     *                                                an absolute path to the compiled templates,
 | 
						|
     *                                                or false to disable cache
 | 
						|
     */
 | 
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    public function setCache($cache)
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    {
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						|
        if (is_string($cache)) {
 | 
						|
            $this->originalCache = $cache;
 | 
						|
            $this->cache = new Twig_Cache_Filesystem($cache);
 | 
						|
        } elseif (false === $cache) {
 | 
						|
            $this->originalCache = $cache;
 | 
						|
            $this->cache = new Twig_Cache_Null();
 | 
						|
        } elseif (null === $cache) {
 | 
						|
            @trigger_error('Using "null" as the cache strategy is deprecated since version 1.23 and will be removed in Twig 2.0.', E_USER_DEPRECATED);
 | 
						|
            $this->originalCache = false;
 | 
						|
            $this->cache = new Twig_Cache_Null();
 | 
						|
        } elseif ($cache instanceof Twig_CacheInterface) {
 | 
						|
            $this->originalCache = $this->cache = $cache;
 | 
						|
        } else {
 | 
						|
            throw new LogicException(sprintf('Cache can only be a string, false, or a Twig_CacheInterface implementation.'));
 | 
						|
        }
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Gets the cache filename for a given template.
 | 
						|
     *
 | 
						|
     * @param string $name The template name
 | 
						|
     *
 | 
						|
     * @return string|false The cache file name or false when caching is disabled
 | 
						|
     *
 | 
						|
     * @deprecated since 1.22 (to be removed in 2.0)
 | 
						|
     */
 | 
						|
    public function getCacheFilename($name)
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						|
    {
 | 
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        @trigger_error(sprintf('The %s method is deprecated since version 1.22 and will be removed in Twig 2.0.', __METHOD__), E_USER_DEPRECATED);
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 | 
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        $key = $this->cache->generateKey($name, $this->getTemplateClass($name));
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 | 
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        return !$key ? false : $key;
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Gets the template class associated with the given string.
 | 
						|
     *
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						|
     * The generated template class is based on the following parameters:
 | 
						|
     *
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						|
     *  * The cache key for the given template;
 | 
						|
     *  * The currently enabled extensions;
 | 
						|
     *  * Whether the Twig C extension is available or not;
 | 
						|
     *  * PHP version;
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						|
     *  * Twig version;
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						|
     *  * Options with what environment was created.
 | 
						|
     *
 | 
						|
     * @param string   $name  The name for which to calculate the template class name
 | 
						|
     * @param int|null $index The index if it is an embedded template
 | 
						|
     *
 | 
						|
     * @return string The template class name
 | 
						|
     */
 | 
						|
    public function getTemplateClass($name, $index = null)
 | 
						|
    {
 | 
						|
        $key = $this->getLoader()->getCacheKey($name).$this->optionsHash;
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						|
 | 
						|
        return $this->templateClassPrefix.hash('sha256', $key).(null === $index ? '' : '_'.$index);
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Gets the template class prefix.
 | 
						|
     *
 | 
						|
     * @return string The template class prefix
 | 
						|
     *
 | 
						|
     * @deprecated since 1.22 (to be removed in 2.0)
 | 
						|
     */
 | 
						|
    public function getTemplateClassPrefix()
 | 
						|
    {
 | 
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        @trigger_error(sprintf('The %s method is deprecated since version 1.22 and will be removed in Twig 2.0.', __METHOD__), E_USER_DEPRECATED);
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 | 
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        return $this->templateClassPrefix;
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Renders a template.
 | 
						|
     *
 | 
						|
     * @param string $name    The template name
 | 
						|
     * @param array  $context An array of parameters to pass to the template
 | 
						|
     *
 | 
						|
     * @return string The rendered template
 | 
						|
     *
 | 
						|
     * @throws Twig_Error_Loader  When the template cannot be found
 | 
						|
     * @throws Twig_Error_Syntax  When an error occurred during compilation
 | 
						|
     * @throws Twig_Error_Runtime When an error occurred during rendering
 | 
						|
     */
 | 
						|
    public function render($name, array $context = [])
 | 
						|
    {
 | 
						|
        return $this->loadTemplate($name)->render($context);
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Displays a template.
 | 
						|
     *
 | 
						|
     * @param string $name    The template name
 | 
						|
     * @param array  $context An array of parameters to pass to the template
 | 
						|
     *
 | 
						|
     * @throws Twig_Error_Loader  When the template cannot be found
 | 
						|
     * @throws Twig_Error_Syntax  When an error occurred during compilation
 | 
						|
     * @throws Twig_Error_Runtime When an error occurred during rendering
 | 
						|
     */
 | 
						|
    public function display($name, array $context = [])
 | 
						|
    {
 | 
						|
        $this->loadTemplate($name)->display($context);
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Loads a template.
 | 
						|
     *
 | 
						|
     * @param string|Twig_TemplateWrapper|Twig_Template $name The template name
 | 
						|
     *
 | 
						|
     * @throws Twig_Error_Loader  When the template cannot be found
 | 
						|
     * @throws Twig_Error_Runtime When a previously generated cache is corrupted
 | 
						|
     * @throws Twig_Error_Syntax  When an error occurred during compilation
 | 
						|
     *
 | 
						|
     * @return Twig_TemplateWrapper
 | 
						|
     */
 | 
						|
    public function load($name)
 | 
						|
    {
 | 
						|
        if ($name instanceof Twig_TemplateWrapper) {
 | 
						|
            return $name;
 | 
						|
        }
 | 
						|
 | 
						|
        if ($name instanceof Twig_Template) {
 | 
						|
            return new Twig_TemplateWrapper($this, $name);
 | 
						|
        }
 | 
						|
 | 
						|
        return new Twig_TemplateWrapper($this, $this->loadTemplate($name));
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Loads a template internal representation.
 | 
						|
     *
 | 
						|
     * This method is for internal use only and should never be called
 | 
						|
     * directly.
 | 
						|
     *
 | 
						|
     * @param string $name  The template name
 | 
						|
     * @param int    $index The index if it is an embedded template
 | 
						|
     *
 | 
						|
     * @return Twig_TemplateInterface A template instance representing the given template name
 | 
						|
     *
 | 
						|
     * @throws Twig_Error_Loader  When the template cannot be found
 | 
						|
     * @throws Twig_Error_Runtime When a previously generated cache is corrupted
 | 
						|
     * @throws Twig_Error_Syntax  When an error occurred during compilation
 | 
						|
     *
 | 
						|
     * @internal
 | 
						|
     */
 | 
						|
    public function loadTemplate($name, $index = null)
 | 
						|
    {
 | 
						|
        $cls = $mainCls = $this->getTemplateClass($name);
 | 
						|
        if (null !== $index) {
 | 
						|
            $cls .= '_'.$index;
 | 
						|
        }
 | 
						|
 | 
						|
        if (isset($this->loadedTemplates[$cls])) {
 | 
						|
            return $this->loadedTemplates[$cls];
 | 
						|
        }
 | 
						|
 | 
						|
        if (!class_exists($cls, false)) {
 | 
						|
            if ($this->bcGetCacheFilename) {
 | 
						|
                $key = $this->getCacheFilename($name);
 | 
						|
            } else {
 | 
						|
                $key = $this->cache->generateKey($name, $mainCls);
 | 
						|
            }
 | 
						|
 | 
						|
            if (!$this->isAutoReload() || $this->isTemplateFresh($name, $this->cache->getTimestamp($key))) {
 | 
						|
                $this->cache->load($key);
 | 
						|
            }
 | 
						|
 | 
						|
            if (!class_exists($cls, false)) {
 | 
						|
                $loader = $this->getLoader();
 | 
						|
                if (!$loader instanceof Twig_SourceContextLoaderInterface) {
 | 
						|
                    $source = new Twig_Source($loader->getSource($name), $name);
 | 
						|
                } else {
 | 
						|
                    $source = $loader->getSourceContext($name);
 | 
						|
                }
 | 
						|
 | 
						|
                $content = $this->compileSource($source);
 | 
						|
 | 
						|
                if ($this->bcWriteCacheFile) {
 | 
						|
                    $this->writeCacheFile($key, $content);
 | 
						|
                } else {
 | 
						|
                    $this->cache->write($key, $content);
 | 
						|
                    $this->cache->load($key);
 | 
						|
                }
 | 
						|
 | 
						|
                if (!class_exists($mainCls, false)) {
 | 
						|
                    /* Last line of defense if either $this->bcWriteCacheFile was used,
 | 
						|
                     * $this->cache is implemented as a no-op or we have a race condition
 | 
						|
                     * where the cache was cleared between the above calls to write to and load from
 | 
						|
                     * the cache.
 | 
						|
                     */
 | 
						|
                    eval('?>'.$content);
 | 
						|
                }
 | 
						|
            }
 | 
						|
 | 
						|
            if (!class_exists($cls, false)) {
 | 
						|
                throw new Twig_Error_Runtime(sprintf('Failed to load Twig template "%s", index "%s": cache is corrupted.', $name, $index), -1, $source);
 | 
						|
            }
 | 
						|
        }
 | 
						|
 | 
						|
        if (!$this->runtimeInitialized) {
 | 
						|
            $this->initRuntime();
 | 
						|
        }
 | 
						|
 | 
						|
        if (isset($this->loading[$cls])) {
 | 
						|
            throw new Twig_Error_Runtime(sprintf('Circular reference detected for Twig template "%s", path: %s.', $name, implode(' -> ', array_merge($this->loading, [$name]))));
 | 
						|
        }
 | 
						|
 | 
						|
        $this->loading[$cls] = $name;
 | 
						|
 | 
						|
        try {
 | 
						|
            $this->loadedTemplates[$cls] = new $cls($this);
 | 
						|
            unset($this->loading[$cls]);
 | 
						|
        } catch (\Exception $e) {
 | 
						|
            unset($this->loading[$cls]);
 | 
						|
 | 
						|
            throw $e;
 | 
						|
        }
 | 
						|
 | 
						|
        return $this->loadedTemplates[$cls];
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Creates a template from source.
 | 
						|
     *
 | 
						|
     * This method should not be used as a generic way to load templates.
 | 
						|
     *
 | 
						|
     * @param string $template The template name
 | 
						|
     *
 | 
						|
     * @return Twig_Template A template instance representing the given template name
 | 
						|
     *
 | 
						|
     * @throws Twig_Error_Loader When the template cannot be found
 | 
						|
     * @throws Twig_Error_Syntax When an error occurred during compilation
 | 
						|
     */
 | 
						|
    public function createTemplate($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);
 | 
						|
        } catch (Exception $e) {
 | 
						|
            $this->setLoader($current);
 | 
						|
 | 
						|
            throw $e;
 | 
						|
        } catch (Throwable $e) {
 | 
						|
            $this->setLoader($current);
 | 
						|
 | 
						|
            throw $e;
 | 
						|
        }
 | 
						|
        $this->setLoader($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)
 | 
						|
    {
 | 
						|
        if (0 === $this->lastModifiedExtension) {
 | 
						|
            foreach ($this->extensions as $extension) {
 | 
						|
                $r = new ReflectionObject($extension);
 | 
						|
                if (file_exists($r->getFileName()) && ($extensionTime = filemtime($r->getFileName())) > $this->lastModifiedExtension) {
 | 
						|
                    $this->lastModifiedExtension = $extensionTime;
 | 
						|
                }
 | 
						|
            }
 | 
						|
        }
 | 
						|
 | 
						|
        return $this->lastModifiedExtension <= $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)));
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Clears the internal template cache.
 | 
						|
     *
 | 
						|
     * @deprecated since 1.18.3 (to be removed in 2.0)
 | 
						|
     */
 | 
						|
    public function clearTemplateCache()
 | 
						|
    {
 | 
						|
        @trigger_error(sprintf('The %s method is deprecated since version 1.18.3 and will be removed in Twig 2.0.', __METHOD__), E_USER_DEPRECATED);
 | 
						|
 | 
						|
        $this->loadedTemplates = [];
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Clears the template cache files on the filesystem.
 | 
						|
     *
 | 
						|
     * @deprecated since 1.22 (to be removed in 2.0)
 | 
						|
     */
 | 
						|
    public function clearCacheFiles()
 | 
						|
    {
 | 
						|
        @trigger_error(sprintf('The %s method is deprecated since version 1.22 and will be removed in Twig 2.0.', __METHOD__), E_USER_DEPRECATED);
 | 
						|
 | 
						|
        if (is_string($this->originalCache)) {
 | 
						|
            foreach (new RecursiveIteratorIterator(new RecursiveDirectoryIterator($this->originalCache), RecursiveIteratorIterator::LEAVES_ONLY) as $file) {
 | 
						|
                if ($file->isFile()) {
 | 
						|
                    @unlink($file->getPathname());
 | 
						|
                }
 | 
						|
            }
 | 
						|
        }
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Gets the Lexer instance.
 | 
						|
     *
 | 
						|
     * @return Twig_LexerInterface
 | 
						|
     *
 | 
						|
     * @deprecated since 1.25 (to be removed in 2.0)
 | 
						|
     */
 | 
						|
    public function getLexer()
 | 
						|
    {
 | 
						|
        @trigger_error(sprintf('The %s() method is deprecated since version 1.25 and will be removed in 2.0.', __FUNCTION__), E_USER_DEPRECATED);
 | 
						|
 | 
						|
        if (null === $this->lexer) {
 | 
						|
            $this->lexer = new Twig_Lexer($this);
 | 
						|
        }
 | 
						|
 | 
						|
        return $this->lexer;
 | 
						|
    }
 | 
						|
 | 
						|
    public function setLexer(Twig_LexerInterface $lexer)
 | 
						|
    {
 | 
						|
        $this->lexer = $lexer;
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Tokenizes a source code.
 | 
						|
     *
 | 
						|
     * @param string|Twig_Source $source The template source code
 | 
						|
     * @param string             $name   The template name (deprecated)
 | 
						|
     *
 | 
						|
     * @return Twig_TokenStream
 | 
						|
     *
 | 
						|
     * @throws Twig_Error_Syntax When the code is syntactically wrong
 | 
						|
     */
 | 
						|
    public function tokenize($source, $name = null)
 | 
						|
    {
 | 
						|
        if (!$source instanceof Twig_Source) {
 | 
						|
            @trigger_error(sprintf('Passing a string as the $source argument of %s() is deprecated since version 1.27. Pass a Twig_Source instance instead.', __METHOD__), E_USER_DEPRECATED);
 | 
						|
            $source = new Twig_Source($source, $name);
 | 
						|
        }
 | 
						|
 | 
						|
        if (null === $this->lexer) {
 | 
						|
            $this->lexer = new Twig_Lexer($this);
 | 
						|
        }
 | 
						|
 | 
						|
        return $this->lexer->tokenize($source);
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Gets the Parser instance.
 | 
						|
     *
 | 
						|
     * @return Twig_ParserInterface
 | 
						|
     *
 | 
						|
     * @deprecated since 1.25 (to be removed in 2.0)
 | 
						|
     */
 | 
						|
    public function getParser()
 | 
						|
    {
 | 
						|
        @trigger_error(sprintf('The %s() method is deprecated since version 1.25 and will be removed in 2.0.', __FUNCTION__), E_USER_DEPRECATED);
 | 
						|
 | 
						|
        if (null === $this->parser) {
 | 
						|
            $this->parser = new Twig_Parser($this);
 | 
						|
        }
 | 
						|
 | 
						|
        return $this->parser;
 | 
						|
    }
 | 
						|
 | 
						|
    public function setParser(Twig_ParserInterface $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);
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Gets the Compiler instance.
 | 
						|
     *
 | 
						|
     * @return Twig_CompilerInterface
 | 
						|
     *
 | 
						|
     * @deprecated since 1.25 (to be removed in 2.0)
 | 
						|
     */
 | 
						|
    public function getCompiler()
 | 
						|
    {
 | 
						|
        @trigger_error(sprintf('The %s() method is deprecated since version 1.25 and will be removed in 2.0.', __FUNCTION__), E_USER_DEPRECATED);
 | 
						|
 | 
						|
        if (null === $this->compiler) {
 | 
						|
            $this->compiler = new Twig_Compiler($this);
 | 
						|
        }
 | 
						|
 | 
						|
        return $this->compiler;
 | 
						|
    }
 | 
						|
 | 
						|
    public function setCompiler(Twig_CompilerInterface $compiler)
 | 
						|
    {
 | 
						|
        $this->compiler = $compiler;
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Compiles a node and returns the PHP code.
 | 
						|
     *
 | 
						|
     * @return string The compiled PHP source code
 | 
						|
     */
 | 
						|
    public function compile(Twig_NodeInterface $node)
 | 
						|
    {
 | 
						|
        if (null === $this->compiler) {
 | 
						|
            $this->compiler = new Twig_Compiler($this);
 | 
						|
        }
 | 
						|
 | 
						|
        return $this->compiler->compile($node)->getSource();
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Compiles a template source code.
 | 
						|
     *
 | 
						|
     * @param string|Twig_Source $source The template source code
 | 
						|
     * @param string             $name   The template name (deprecated)
 | 
						|
     *
 | 
						|
     * @return string The compiled PHP source code
 | 
						|
     *
 | 
						|
     * @throws Twig_Error_Syntax When there was an error during tokenizing, parsing or compiling
 | 
						|
     */
 | 
						|
    public function compileSource($source, $name = null)
 | 
						|
    {
 | 
						|
        if (!$source instanceof Twig_Source) {
 | 
						|
            @trigger_error(sprintf('Passing a string as the $source argument of %s() is deprecated since version 1.27. Pass a Twig_Source instance instead.', __METHOD__), E_USER_DEPRECATED);
 | 
						|
            $source = new Twig_Source($source, $name);
 | 
						|
        }
 | 
						|
 | 
						|
        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 $loader)
 | 
						|
    {
 | 
						|
        if (!$loader instanceof Twig_SourceContextLoaderInterface && 0 !== strpos(get_class($loader), 'Mock_')) {
 | 
						|
            @trigger_error(sprintf('Twig loader "%s" should implement Twig_SourceContextLoaderInterface since version 1.27.', get_class($loader)), E_USER_DEPRECATED);
 | 
						|
        }
 | 
						|
 | 
						|
        $this->loader = $loader;
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Gets the Loader instance.
 | 
						|
     *
 | 
						|
     * @return Twig_LoaderInterface
 | 
						|
     */
 | 
						|
    public function getLoader()
 | 
						|
    {
 | 
						|
        if (null === $this->loader) {
 | 
						|
            throw new LogicException('You must set a loader first.');
 | 
						|
        }
 | 
						|
 | 
						|
        return $this->loader;
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Sets the default template charset.
 | 
						|
     *
 | 
						|
     * @param string $charset The default charset
 | 
						|
     */
 | 
						|
    public function setCharset($charset)
 | 
						|
    {
 | 
						|
        $this->charset = strtoupper($charset);
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Gets the default template charset.
 | 
						|
     *
 | 
						|
     * @return string The default charset
 | 
						|
     */
 | 
						|
    public function getCharset()
 | 
						|
    {
 | 
						|
        return $this->charset;
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Initializes the runtime environment.
 | 
						|
     *
 | 
						|
     * @deprecated since 1.23 (to be removed in 2.0)
 | 
						|
     */
 | 
						|
    public function initRuntime()
 | 
						|
    {
 | 
						|
        $this->runtimeInitialized = true;
 | 
						|
 | 
						|
        foreach ($this->getExtensions() as $name => $extension) {
 | 
						|
            if (!$extension instanceof Twig_Extension_InitRuntimeInterface) {
 | 
						|
                $m = new ReflectionMethod($extension, 'initRuntime');
 | 
						|
 | 
						|
                if ('Twig_Extension' !== $m->getDeclaringClass()->getName()) {
 | 
						|
                    @trigger_error(sprintf('Defining the initRuntime() method in the "%s" extension is deprecated since version 1.23. Use the `needs_environment` option to get the Twig_Environment instance in filters, functions, or tests; or explicitly implement Twig_Extension_InitRuntimeInterface if needed (not recommended).', $name), E_USER_DEPRECATED);
 | 
						|
                }
 | 
						|
            }
 | 
						|
 | 
						|
            $extension->initRuntime($this);
 | 
						|
        }
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * 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)
 | 
						|
    {
 | 
						|
        $class = ltrim($class, '\\');
 | 
						|
        if (!isset($this->extensionsByClass[$class]) && class_exists($class, false)) {
 | 
						|
            // For BC/FC with namespaced aliases
 | 
						|
            $class = new ReflectionClass($class);
 | 
						|
            $class = $class->name;
 | 
						|
        }
 | 
						|
 | 
						|
        if (isset($this->extensions[$class])) {
 | 
						|
            if ($class !== get_class($this->extensions[$class])) {
 | 
						|
                @trigger_error(sprintf('Referencing the "%s" extension by its name (defined by getName()) is deprecated since 1.26 and will be removed in Twig 2.0. Use the Fully Qualified Extension Class Name instead.', $class), E_USER_DEPRECATED);
 | 
						|
            }
 | 
						|
 | 
						|
            return true;
 | 
						|
        }
 | 
						|
 | 
						|
        return isset($this->extensionsByClass[$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)
 | 
						|
    {
 | 
						|
        $class = ltrim($class, '\\');
 | 
						|
        if (!isset($this->extensionsByClass[$class]) && class_exists($class, false)) {
 | 
						|
            // For BC/FC with namespaced aliases
 | 
						|
            $class = new ReflectionClass($class);
 | 
						|
            $class = $class->name;
 | 
						|
        }
 | 
						|
 | 
						|
        if (isset($this->extensions[$class])) {
 | 
						|
            if ($class !== get_class($this->extensions[$class])) {
 | 
						|
                @trigger_error(sprintf('Referencing the "%s" extension by its name (defined by getName()) is deprecated since 1.26 and will be removed in Twig 2.0. Use the Fully Qualified Extension Class Name instead.', $class), E_USER_DEPRECATED);
 | 
						|
            }
 | 
						|
 | 
						|
            return $this->extensions[$class];
 | 
						|
        }
 | 
						|
 | 
						|
        if (!isset($this->extensionsByClass[$class])) {
 | 
						|
            throw new Twig_Error_Runtime(sprintf('The "%s" extension is not enabled.', $class));
 | 
						|
        }
 | 
						|
 | 
						|
        return $this->extensionsByClass[$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 $extension)
 | 
						|
    {
 | 
						|
        if ($this->extensionInitialized) {
 | 
						|
            throw new LogicException(sprintf('Unable to register extension "%s" as extensions have already been initialized.', $extension->getName()));
 | 
						|
        }
 | 
						|
 | 
						|
        $class = get_class($extension);
 | 
						|
        if ($class !== $extension->getName()) {
 | 
						|
            if (isset($this->extensions[$extension->getName()])) {
 | 
						|
                unset($this->extensions[$extension->getName()], $this->extensionsByClass[$class]);
 | 
						|
                @trigger_error(sprintf('The possibility to register the same extension twice ("%s") is deprecated since version 1.23 and will be removed in Twig 2.0. Use proper PHP inheritance instead.', $extension->getName()), E_USER_DEPRECATED);
 | 
						|
            }
 | 
						|
        }
 | 
						|
 | 
						|
        $this->lastModifiedExtension = 0;
 | 
						|
        $this->extensionsByClass[$class] = $extension;
 | 
						|
        $this->extensions[$extension->getName()] = $extension;
 | 
						|
        $this->updateOptionsHash();
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Removes an extension by name.
 | 
						|
     *
 | 
						|
     * This method is deprecated and you should not use it.
 | 
						|
     *
 | 
						|
     * @param string $name The extension name
 | 
						|
     *
 | 
						|
     * @deprecated since 1.12 (to be removed in 2.0)
 | 
						|
     */
 | 
						|
    public function removeExtension($name)
 | 
						|
    {
 | 
						|
        @trigger_error(sprintf('The %s method is deprecated since version 1.12 and will be removed in Twig 2.0.', __METHOD__), E_USER_DEPRECATED);
 | 
						|
 | 
						|
        if ($this->extensionInitialized) {
 | 
						|
            throw new LogicException(sprintf('Unable to remove extension "%s" as extensions have already been initialized.', $name));
 | 
						|
        }
 | 
						|
 | 
						|
        $class = ltrim($name, '\\');
 | 
						|
        if (!isset($this->extensionsByClass[$class]) && class_exists($class, false)) {
 | 
						|
            // For BC/FC with namespaced aliases
 | 
						|
            $class = new ReflectionClass($class);
 | 
						|
            $class = $class->name;
 | 
						|
        }
 | 
						|
 | 
						|
        if (isset($this->extensions[$class])) {
 | 
						|
            if ($class !== get_class($this->extensions[$class])) {
 | 
						|
                @trigger_error(sprintf('Referencing the "%s" extension by its name (defined by getName()) is deprecated since 1.26 and will be removed in Twig 2.0. Use the Fully Qualified Extension Class Name instead.', $class), E_USER_DEPRECATED);
 | 
						|
            }
 | 
						|
 | 
						|
            unset($this->extensions[$class]);
 | 
						|
        }
 | 
						|
 | 
						|
        unset($this->extensions[$class]);
 | 
						|
        $this->updateOptionsHash();
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Registers an array of extensions.
 | 
						|
     *
 | 
						|
     * @param array $extensions An array of extensions
 | 
						|
     */
 | 
						|
    public function setExtensions(array $extensions)
 | 
						|
    {
 | 
						|
        foreach ($extensions as $extension) {
 | 
						|
            $this->addExtension($extension);
 | 
						|
        }
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * 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->extensions;
 | 
						|
    }
 | 
						|
 | 
						|
    public function addTokenParser(Twig_TokenParserInterface $parser)
 | 
						|
    {
 | 
						|
        if ($this->extensionInitialized) {
 | 
						|
            throw new LogicException('Unable to add a token parser as extensions have already been initialized.');
 | 
						|
        }
 | 
						|
 | 
						|
        $this->staging->addTokenParser($parser);
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Gets the registered Token Parsers.
 | 
						|
     *
 | 
						|
     * @return Twig_TokenParserBrokerInterface
 | 
						|
     *
 | 
						|
     * @internal
 | 
						|
     */
 | 
						|
    public function getTokenParsers()
 | 
						|
    {
 | 
						|
        if (!$this->extensionInitialized) {
 | 
						|
            $this->initExtensions();
 | 
						|
        }
 | 
						|
 | 
						|
        return $this->parsers;
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Gets registered tags.
 | 
						|
     *
 | 
						|
     * Be warned that this method cannot return tags defined by Twig_TokenParserBrokerInterface classes.
 | 
						|
     *
 | 
						|
     * @return Twig_TokenParserInterface[]
 | 
						|
     *
 | 
						|
     * @internal
 | 
						|
     */
 | 
						|
    public function getTags()
 | 
						|
    {
 | 
						|
        $tags = [];
 | 
						|
        foreach ($this->getTokenParsers()->getParsers() as $parser) {
 | 
						|
            if ($parser instanceof Twig_TokenParserInterface) {
 | 
						|
                $tags[$parser->getTag()] = $parser;
 | 
						|
            }
 | 
						|
        }
 | 
						|
 | 
						|
        return $tags;
 | 
						|
    }
 | 
						|
 | 
						|
    public function addNodeVisitor(Twig_NodeVisitorInterface $visitor)
 | 
						|
    {
 | 
						|
        if ($this->extensionInitialized) {
 | 
						|
            throw new LogicException('Unable to add a node visitor as extensions have already been initialized.');
 | 
						|
        }
 | 
						|
 | 
						|
        $this->staging->addNodeVisitor($visitor);
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Gets the registered Node Visitors.
 | 
						|
     *
 | 
						|
     * @return Twig_NodeVisitorInterface[]
 | 
						|
     *
 | 
						|
     * @internal
 | 
						|
     */
 | 
						|
    public function getNodeVisitors()
 | 
						|
    {
 | 
						|
        if (!$this->extensionInitialized) {
 | 
						|
            $this->initExtensions();
 | 
						|
        }
 | 
						|
 | 
						|
        return $this->visitors;
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Registers a Filter.
 | 
						|
     *
 | 
						|
     * @param string|Twig_SimpleFilter               $name   The filter name or a Twig_SimpleFilter instance
 | 
						|
     * @param Twig_FilterInterface|Twig_SimpleFilter $filter
 | 
						|
     */
 | 
						|
    public function addFilter($name, $filter = null)
 | 
						|
    {
 | 
						|
        if (!$name instanceof Twig_SimpleFilter && !($filter instanceof Twig_SimpleFilter || $filter instanceof Twig_FilterInterface)) {
 | 
						|
            throw new LogicException('A filter must be an instance of Twig_FilterInterface or Twig_SimpleFilter.');
 | 
						|
        }
 | 
						|
 | 
						|
        if ($name instanceof Twig_SimpleFilter) {
 | 
						|
            $filter = $name;
 | 
						|
            $name = $filter->getName();
 | 
						|
        } else {
 | 
						|
            @trigger_error(sprintf('Passing a name as a first argument to the %s method is deprecated since version 1.21. Pass an instance of "Twig_SimpleFilter" instead when defining filter "%s".', __METHOD__, $name), E_USER_DEPRECATED);
 | 
						|
        }
 | 
						|
 | 
						|
        if ($this->extensionInitialized) {
 | 
						|
            throw new LogicException(sprintf('Unable to add filter "%s" as extensions have already been initialized.', $name));
 | 
						|
        }
 | 
						|
 | 
						|
        $this->staging->addFilter($name, $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)
 | 
						|
    {
 | 
						|
        if (!$this->extensionInitialized) {
 | 
						|
            $this->initExtensions();
 | 
						|
        }
 | 
						|
 | 
						|
        if (isset($this->filters[$name])) {
 | 
						|
            return $this->filters[$name];
 | 
						|
        }
 | 
						|
 | 
						|
        foreach ($this->filters as $pattern => $filter) {
 | 
						|
            $pattern = str_replace('\\*', '(.*?)', preg_quote($pattern, '#'), $count);
 | 
						|
 | 
						|
            if ($count) {
 | 
						|
                if (preg_match('#^'.$pattern.'$#', $name, $matches)) {
 | 
						|
                    array_shift($matches);
 | 
						|
                    $filter->setArguments($matches);
 | 
						|
 | 
						|
                    return $filter;
 | 
						|
                }
 | 
						|
            }
 | 
						|
        }
 | 
						|
 | 
						|
        foreach ($this->filterCallbacks as $callback) {
 | 
						|
            if (false !== $filter = call_user_func($callback, $name)) {
 | 
						|
                return $filter;
 | 
						|
            }
 | 
						|
        }
 | 
						|
 | 
						|
        return false;
 | 
						|
    }
 | 
						|
 | 
						|
    public function registerUndefinedFilterCallback($callable)
 | 
						|
    {
 | 
						|
        $this->filterCallbacks[] = $callable;
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Gets the registered Filters.
 | 
						|
     *
 | 
						|
     * Be warned that this method cannot return filters defined with registerUndefinedFilterCallback.
 | 
						|
     *
 | 
						|
     * @return Twig_FilterInterface[]
 | 
						|
     *
 | 
						|
     * @see registerUndefinedFilterCallback
 | 
						|
     *
 | 
						|
     * @internal
 | 
						|
     */
 | 
						|
    public function getFilters()
 | 
						|
    {
 | 
						|
        if (!$this->extensionInitialized) {
 | 
						|
            $this->initExtensions();
 | 
						|
        }
 | 
						|
 | 
						|
        return $this->filters;
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Registers a Test.
 | 
						|
     *
 | 
						|
     * @param string|Twig_SimpleTest             $name The test name or a Twig_SimpleTest instance
 | 
						|
     * @param Twig_TestInterface|Twig_SimpleTest $test A Twig_TestInterface instance or a Twig_SimpleTest instance
 | 
						|
     */
 | 
						|
    public function addTest($name, $test = null)
 | 
						|
    {
 | 
						|
        if (!$name instanceof Twig_SimpleTest && !($test instanceof Twig_SimpleTest || $test instanceof Twig_TestInterface)) {
 | 
						|
            throw new LogicException('A test must be an instance of Twig_TestInterface or Twig_SimpleTest.');
 | 
						|
        }
 | 
						|
 | 
						|
        if ($name instanceof Twig_SimpleTest) {
 | 
						|
            $test = $name;
 | 
						|
            $name = $test->getName();
 | 
						|
        } else {
 | 
						|
            @trigger_error(sprintf('Passing a name as a first argument to the %s method is deprecated since version 1.21. Pass an instance of "Twig_SimpleTest" instead when defining test "%s".', __METHOD__, $name), E_USER_DEPRECATED);
 | 
						|
        }
 | 
						|
 | 
						|
        if ($this->extensionInitialized) {
 | 
						|
            throw new LogicException(sprintf('Unable to add test "%s" as extensions have already been initialized.', $name));
 | 
						|
        }
 | 
						|
 | 
						|
        $this->staging->addTest($name, $test);
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Gets the registered Tests.
 | 
						|
     *
 | 
						|
     * @return Twig_TestInterface[]
 | 
						|
     *
 | 
						|
     * @internal
 | 
						|
     */
 | 
						|
    public function getTests()
 | 
						|
    {
 | 
						|
        if (!$this->extensionInitialized) {
 | 
						|
            $this->initExtensions();
 | 
						|
        }
 | 
						|
 | 
						|
        return $this->tests;
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * 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)
 | 
						|
    {
 | 
						|
        if (!$this->extensionInitialized) {
 | 
						|
            $this->initExtensions();
 | 
						|
        }
 | 
						|
 | 
						|
        if (isset($this->tests[$name])) {
 | 
						|
            return $this->tests[$name];
 | 
						|
        }
 | 
						|
 | 
						|
        foreach ($this->tests as $pattern => $test) {
 | 
						|
            $pattern = str_replace('\\*', '(.*?)', preg_quote($pattern, '#'), $count);
 | 
						|
 | 
						|
            if ($count) {
 | 
						|
                if (preg_match('#^'.$pattern.'$#', $name, $matches)) {
 | 
						|
                    array_shift($matches);
 | 
						|
                    $test->setArguments($matches);
 | 
						|
 | 
						|
                    return $test;
 | 
						|
                }
 | 
						|
            }
 | 
						|
        }
 | 
						|
 | 
						|
        return false;
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Registers a Function.
 | 
						|
     *
 | 
						|
     * @param string|Twig_SimpleFunction                 $name     The function name or a Twig_SimpleFunction instance
 | 
						|
     * @param Twig_FunctionInterface|Twig_SimpleFunction $function
 | 
						|
     */
 | 
						|
    public function addFunction($name, $function = null)
 | 
						|
    {
 | 
						|
        if (!$name instanceof Twig_SimpleFunction && !($function instanceof Twig_SimpleFunction || $function instanceof Twig_FunctionInterface)) {
 | 
						|
            throw new LogicException('A function must be an instance of Twig_FunctionInterface or Twig_SimpleFunction.');
 | 
						|
        }
 | 
						|
 | 
						|
        if ($name instanceof Twig_SimpleFunction) {
 | 
						|
            $function = $name;
 | 
						|
            $name = $function->getName();
 | 
						|
        } else {
 | 
						|
            @trigger_error(sprintf('Passing a name as a first argument to the %s method is deprecated since version 1.21. Pass an instance of "Twig_SimpleFunction" instead when defining function "%s".', __METHOD__, $name), E_USER_DEPRECATED);
 | 
						|
        }
 | 
						|
 | 
						|
        if ($this->extensionInitialized) {
 | 
						|
            throw new LogicException(sprintf('Unable to add function "%s" as extensions have already been initialized.', $name));
 | 
						|
        }
 | 
						|
 | 
						|
        $this->staging->addFunction($name, $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)
 | 
						|
    {
 | 
						|
        if (!$this->extensionInitialized) {
 | 
						|
            $this->initExtensions();
 | 
						|
        }
 | 
						|
 | 
						|
        if (isset($this->functions[$name])) {
 | 
						|
            return $this->functions[$name];
 | 
						|
        }
 | 
						|
 | 
						|
        foreach ($this->functions as $pattern => $function) {
 | 
						|
            $pattern = str_replace('\\*', '(.*?)', preg_quote($pattern, '#'), $count);
 | 
						|
 | 
						|
            if ($count) {
 | 
						|
                if (preg_match('#^'.$pattern.'$#', $name, $matches)) {
 | 
						|
                    array_shift($matches);
 | 
						|
                    $function->setArguments($matches);
 | 
						|
 | 
						|
                    return $function;
 | 
						|
                }
 | 
						|
            }
 | 
						|
        }
 | 
						|
 | 
						|
        foreach ($this->functionCallbacks as $callback) {
 | 
						|
            if (false !== $function = call_user_func($callback, $name)) {
 | 
						|
                return $function;
 | 
						|
            }
 | 
						|
        }
 | 
						|
 | 
						|
        return false;
 | 
						|
    }
 | 
						|
 | 
						|
    public function registerUndefinedFunctionCallback($callable)
 | 
						|
    {
 | 
						|
        $this->functionCallbacks[] = $callable;
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Gets registered functions.
 | 
						|
     *
 | 
						|
     * Be warned that this method cannot return functions defined with registerUndefinedFunctionCallback.
 | 
						|
     *
 | 
						|
     * @return Twig_FunctionInterface[]
 | 
						|
     *
 | 
						|
     * @see registerUndefinedFunctionCallback
 | 
						|
     *
 | 
						|
     * @internal
 | 
						|
     */
 | 
						|
    public function getFunctions()
 | 
						|
    {
 | 
						|
        if (!$this->extensionInitialized) {
 | 
						|
            $this->initExtensions();
 | 
						|
        }
 | 
						|
 | 
						|
        return $this->functions;
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * 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->extensionInitialized || $this->runtimeInitialized) {
 | 
						|
            if (null === $this->globals) {
 | 
						|
                $this->globals = $this->initGlobals();
 | 
						|
            }
 | 
						|
 | 
						|
            if (!array_key_exists($name, $this->globals)) {
 | 
						|
                // The deprecation notice must be turned into the following exception in Twig 2.0
 | 
						|
                @trigger_error(sprintf('Registering global variable "%s" at runtime or when the extensions have already been initialized is deprecated since version 1.21.', $name), E_USER_DEPRECATED);
 | 
						|
                //throw new LogicException(sprintf('Unable to add global "%s" as the runtime or the extensions have already been initialized.', $name));
 | 
						|
            }
 | 
						|
        }
 | 
						|
 | 
						|
        if ($this->extensionInitialized || $this->runtimeInitialized) {
 | 
						|
            // update the value
 | 
						|
            $this->globals[$name] = $value;
 | 
						|
        } else {
 | 
						|
            $this->staging->addGlobal($name, $value);
 | 
						|
        }
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Gets the registered Globals.
 | 
						|
     *
 | 
						|
     * @return array An array of globals
 | 
						|
     *
 | 
						|
     * @internal
 | 
						|
     */
 | 
						|
    public function getGlobals()
 | 
						|
    {
 | 
						|
        if (!$this->runtimeInitialized && !$this->extensionInitialized) {
 | 
						|
            return $this->initGlobals();
 | 
						|
        }
 | 
						|
 | 
						|
        if (null === $this->globals) {
 | 
						|
            $this->globals = $this->initGlobals();
 | 
						|
        }
 | 
						|
 | 
						|
        return $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 $context;
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Gets the registered unary Operators.
 | 
						|
     *
 | 
						|
     * @return array An array of unary operators
 | 
						|
     *
 | 
						|
     * @internal
 | 
						|
     */
 | 
						|
    public function getUnaryOperators()
 | 
						|
    {
 | 
						|
        if (!$this->extensionInitialized) {
 | 
						|
            $this->initExtensions();
 | 
						|
        }
 | 
						|
 | 
						|
        return $this->unaryOperators;
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Gets the registered binary Operators.
 | 
						|
     *
 | 
						|
     * @return array An array of binary operators
 | 
						|
     *
 | 
						|
     * @internal
 | 
						|
     */
 | 
						|
    public function getBinaryOperators()
 | 
						|
    {
 | 
						|
        if (!$this->extensionInitialized) {
 | 
						|
            $this->initExtensions();
 | 
						|
        }
 | 
						|
 | 
						|
        return $this->binaryOperators;
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * @deprecated since 1.23 (to be removed in 2.0)
 | 
						|
     */
 | 
						|
    public function computeAlternatives($name, $items)
 | 
						|
    {
 | 
						|
        @trigger_error(sprintf('The %s method is deprecated since version 1.23 and will be removed in Twig 2.0.', __METHOD__), E_USER_DEPRECATED);
 | 
						|
 | 
						|
        return Twig_Error_Syntax::computeAlternatives($name, $items);
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * @internal
 | 
						|
     */
 | 
						|
    protected function initGlobals()
 | 
						|
    {
 | 
						|
        $globals = [];
 | 
						|
        foreach ($this->extensions as $name => $extension) {
 | 
						|
            if (!$extension instanceof Twig_Extension_GlobalsInterface) {
 | 
						|
                $m = new ReflectionMethod($extension, 'getGlobals');
 | 
						|
 | 
						|
                if ('Twig_Extension' !== $m->getDeclaringClass()->getName()) {
 | 
						|
                    @trigger_error(sprintf('Defining the getGlobals() method in the "%s" extension without explicitly implementing Twig_Extension_GlobalsInterface is deprecated since version 1.23.', $name), E_USER_DEPRECATED);
 | 
						|
                }
 | 
						|
            }
 | 
						|
 | 
						|
            $extGlob = $extension->getGlobals();
 | 
						|
            if (!is_array($extGlob)) {
 | 
						|
                throw new UnexpectedValueException(sprintf('"%s::getGlobals()" must return an array of globals.', get_class($extension)));
 | 
						|
            }
 | 
						|
 | 
						|
            $globals[] = $extGlob;
 | 
						|
        }
 | 
						|
 | 
						|
        $globals[] = $this->staging->getGlobals();
 | 
						|
 | 
						|
        return call_user_func_array('array_merge', $globals);
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * @internal
 | 
						|
     */
 | 
						|
    protected function initExtensions()
 | 
						|
    {
 | 
						|
        if ($this->extensionInitialized) {
 | 
						|
            return;
 | 
						|
        }
 | 
						|
 | 
						|
        $this->parsers = new Twig_TokenParserBroker([], [], false);
 | 
						|
        $this->filters = [];
 | 
						|
        $this->functions = [];
 | 
						|
        $this->tests = [];
 | 
						|
        $this->visitors = [];
 | 
						|
        $this->unaryOperators = [];
 | 
						|
        $this->binaryOperators = [];
 | 
						|
 | 
						|
        foreach ($this->extensions as $extension) {
 | 
						|
            $this->initExtension($extension);
 | 
						|
        }
 | 
						|
        $this->initExtension($this->staging);
 | 
						|
        // Done at the end only, so that an exception during initialization does not mark the environment as initialized when catching the exception
 | 
						|
        $this->extensionInitialized = true;
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * @internal
 | 
						|
     */
 | 
						|
    protected function initExtension(Twig_ExtensionInterface $extension)
 | 
						|
    {
 | 
						|
        // filters
 | 
						|
        foreach ($extension->getFilters() as $name => $filter) {
 | 
						|
            if ($filter instanceof Twig_SimpleFilter) {
 | 
						|
                $name = $filter->getName();
 | 
						|
            } else {
 | 
						|
                @trigger_error(sprintf('Using an instance of "%s" for filter "%s" is deprecated since version 1.21. Use Twig_SimpleFilter instead.', get_class($filter), $name), E_USER_DEPRECATED);
 | 
						|
            }
 | 
						|
 | 
						|
            $this->filters[$name] = $filter;
 | 
						|
        }
 | 
						|
 | 
						|
        // functions
 | 
						|
        foreach ($extension->getFunctions() as $name => $function) {
 | 
						|
            if ($function instanceof Twig_SimpleFunction) {
 | 
						|
                $name = $function->getName();
 | 
						|
            } else {
 | 
						|
                @trigger_error(sprintf('Using an instance of "%s" for function "%s" is deprecated since version 1.21. Use Twig_SimpleFunction instead.', get_class($function), $name), E_USER_DEPRECATED);
 | 
						|
            }
 | 
						|
 | 
						|
            $this->functions[$name] = $function;
 | 
						|
        }
 | 
						|
 | 
						|
        // tests
 | 
						|
        foreach ($extension->getTests() as $name => $test) {
 | 
						|
            if ($test instanceof Twig_SimpleTest) {
 | 
						|
                $name = $test->getName();
 | 
						|
            } else {
 | 
						|
                @trigger_error(sprintf('Using an instance of "%s" for test "%s" is deprecated since version 1.21. Use Twig_SimpleTest instead.', get_class($test), $name), E_USER_DEPRECATED);
 | 
						|
            }
 | 
						|
 | 
						|
            $this->tests[$name] = $test;
 | 
						|
        }
 | 
						|
 | 
						|
        // token parsers
 | 
						|
        foreach ($extension->getTokenParsers() as $parser) {
 | 
						|
            if ($parser instanceof Twig_TokenParserInterface) {
 | 
						|
                $this->parsers->addTokenParser($parser);
 | 
						|
            } elseif ($parser instanceof Twig_TokenParserBrokerInterface) {
 | 
						|
                @trigger_error('Registering a Twig_TokenParserBrokerInterface instance is deprecated since version 1.21.', E_USER_DEPRECATED);
 | 
						|
 | 
						|
                $this->parsers->addTokenParserBroker($parser);
 | 
						|
            } else {
 | 
						|
                throw new LogicException('getTokenParsers() must return an array of Twig_TokenParserInterface or Twig_TokenParserBrokerInterface instances.');
 | 
						|
            }
 | 
						|
        }
 | 
						|
 | 
						|
        // node visitors
 | 
						|
        foreach ($extension->getNodeVisitors() as $visitor) {
 | 
						|
            $this->visitors[] = $visitor;
 | 
						|
        }
 | 
						|
 | 
						|
        // operators
 | 
						|
        if ($operators = $extension->getOperators()) {
 | 
						|
            if (!is_array($operators)) {
 | 
						|
                throw new InvalidArgumentException(sprintf('"%s::getOperators()" must return an array with operators, got "%s".', get_class($extension), is_object($operators) ? get_class($operators) : gettype($operators).(is_resource($operators) ? '' : '#'.$operators)));
 | 
						|
            }
 | 
						|
 | 
						|
            if (2 !== count($operators)) {
 | 
						|
                throw new InvalidArgumentException(sprintf('"%s::getOperators()" must return an array of 2 elements, got %d.', get_class($extension), count($operators)));
 | 
						|
            }
 | 
						|
 | 
						|
            $this->unaryOperators = array_merge($this->unaryOperators, $operators[0]);
 | 
						|
            $this->binaryOperators = array_merge($this->binaryOperators, $operators[1]);
 | 
						|
        }
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * @deprecated since 1.22 (to be removed in 2.0)
 | 
						|
     */
 | 
						|
    protected function writeCacheFile($file, $content)
 | 
						|
    {
 | 
						|
        $this->cache->write($file, $content);
 | 
						|
    }
 | 
						|
 | 
						|
    private function updateOptionsHash()
 | 
						|
    {
 | 
						|
        $hashParts = array_merge(
 | 
						|
            array_keys($this->extensions),
 | 
						|
            [
 | 
						|
                (int) function_exists('twig_template_get_attributes'),
 | 
						|
                PHP_MAJOR_VERSION,
 | 
						|
                PHP_MINOR_VERSION,
 | 
						|
                self::VERSION,
 | 
						|
                (int) $this->debug,
 | 
						|
                $this->baseTemplateClass,
 | 
						|
                (int) $this->strictVariables,
 | 
						|
            ]
 | 
						|
        );
 | 
						|
        $this->optionsHash = implode(':', $hashParts);
 | 
						|
    }
 | 
						|
}
 | 
						|
 | 
						|
class_alias('Twig_Environment', 'Twig\Environment', false);
 | 
						|
 |