ꦫꦣꦺꦤ꧀ꦄꦤ꧀ꦠꦱꦺꦤ

PATH: home / letacommog / letaweb / admin / classes / twig / lib / Twig

<?php

/*
 * This file is part of Twig.
 *
 * (c) 2009 Fabien Potencier
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

/**
 * Twig_NodeTraverser is a node traverser.
 *
 * It visits all nodes and their children and calls the given visitor for each.
 *
 * @author Fabien Potencier <fabien@symfony.com>
 */
class Twig_NodeTraverser
{
    protected $env;
    protected $visitors = array();

/**
     * Constructor.
     *
     * @param Twig_Environment            $env      A Twig_Environment instance
     * @param Twig_NodeVisitorInterface[] $visitors An array of Twig_NodeVisitorInterface instances
     */
    public function __construct(Twig_Environment $env, array $visitors = array())
    {
        $this->env = $env;
        foreach ($visitors as $visitor) {
            $this->addVisitor($visitor);
        }
    }

/**
     * Adds a visitor.
     *
     * @param Twig_NodeVisitorInterface $visitor A Twig_NodeVisitorInterface instance
     */
    public function addVisitor(Twig_NodeVisitorInterface $visitor)
    {
        if (!isset($this->visitors[$visitor->getPriority()])) {
            $this->visitors[$visitor->getPriority()] = array();
        }

$this->visitors[$visitor->getPriority()][] = $visitor;
    }

/**
     * Traverses a node and calls the registered visitors.
     *
     * @param Twig_NodeInterface $node A Twig_NodeInterface instance
     *
     * @return Twig_NodeInterface
     */
    public function traverse(Twig_NodeInterface $node)
    {
        ksort($this->visitors);
        foreach ($this->visitors as $visitors) {
            foreach ($visitors as $visitor) {
                $node = $this->traverseForVisitor($visitor, $node);
            }
        }

return $node;
    }

protected function traverseForVisitor(Twig_NodeVisitorInterface $visitor, Twig_NodeInterface $node = null)
    {
        if (null === $node) {
            return;
        }

$node = $visitor->enterNode($node, $this->env);

foreach ($node as $k => $n) {
            if (false !== $n = $this->traverseForVisitor($visitor, $n)) {
                $node->setNode($k, $n);
            } else {
                $node->removeNode($k);
            }
        }

return $visitor->leaveNode($node, $this->env);
    }
}

[+] ..
[+] Cache
[-] TokenParserInterface.php [edit]
[-] NodeTraverser.php [edit]
[-] TokenParserBroker.php [edit]
[-] TokenParser.php [edit]
[-] Markup.php [edit]
[-] Parser.php [edit]
[-] TokenParserBrokerInterface.php [edit]
[-] ParserInterface.php [edit]
[-] FunctionInterface.php [edit]
[-] NodeOutputInterface.php [edit]
[-] NodeVisitorInterface.php [edit]
[+] Test
[-] TestCallableInterface.php [edit]
[-] FunctionCallableInterface.php [edit]
[-] TokenStream.php [edit]
[-] Environment.php [edit]
[-] Extension.php [edit]
[+] NodeVisitor
[-] Test.php [edit]
[-] CacheInterface.php [edit]
[+] Loader
[-] ExpressionParser.php [edit]
[-] Template.php [edit]
[-] SimpleFilter.php [edit]
[+] Sandbox
[-] FileExtensionEscapingStrategy.php [edit]
[-] BaseNodeVisitor.php [edit]
[+] Function
[+] Node
[-] CompilerInterface.php [edit]
[-] Lexer.php [edit]
[-] Node.php [edit]
[+] Extension
[-] TestInterface.php [edit]
[-] Filter.php [edit]
[-] SimpleTest.php [edit]
[-] LoaderInterface.php [edit]
[+] Error
[+] Filter
[-] LexerInterface.php [edit]
[-] NodeInterface.php [edit]
[+] Profiler
[+] TokenParser
[+] Util
[-] TemplateInterface.php [edit]
[-] SimpleFunction.php [edit]
[-] FilterCallableInterface.php [edit]
[-] Token.php [edit]
[-] Error.php [edit]
[-] ExistsLoaderInterface.php [edit]
[-] Function.php [edit]
[-] FilterInterface.php [edit]
[-] Compiler.php [edit]
[-] Autoloader.php [edit]
[-] ExtensionInterface.php [edit]