<?php

/*

 * This file is part of Twig.

 *

 * (c) 2010 Fabien Potencier

 *

 * For the full copyright and license information, please view the LICENSE

 * file that was distributed with this source code.

 */

class Twig_Node_Expression_Test extends Twig_Node_Expression

{

    public function __construct(Twig_NodeInterface $node, $name, Twig_NodeInterface $arguments = null, $lineno)

    {

        parent::__construct(array('node' => $node, 'arguments' => $arguments), array('name' => $name), $lineno);

    }

    public function compile(Twig_Compiler $compiler)

    {

        $testMap = $compiler->getEnvironment()->getTests();

        if (!isset($testMap[$this->getAttribute('name')])) {

            throw new Twig_Error_Syntax(sprintf('The test "%s" does not exist', $this->getAttribute('name')), $this->getLine());

        }

        $name = $this->getAttribute('name');

        $node = $this->getNode('node');

        // defined is a special case

        if ('defined' === $name) {

            if ($node instanceof Twig_Node_Expression_Name || $node instanceof Twig_Node_Expression_GetAttr) {

                $node->setAttribute('is_defined_test', true);

                $compiler->subcompile($node);

                $node->removeAttribute('is_defined_test');

            } else {

                throw new Twig_Error_Syntax('The "defined" test only works with simple variables', $this->getLine());

            }

            return;

        }

        $compiler

            ->raw($testMap[$name]->compile().'(')

            ->subcompile($node)

        ;

        if (null !== $this->getNode('arguments')) {

            $compiler->raw(', ');

            $max = count($this->getNode('arguments')) - 1;

            foreach ($this->getNode('arguments') as $i => $arg) {

                $compiler->subcompile($arg);

                if ($i != $max) {

                    $compiler->raw(', ');

                }

            }

        }

        $compiler->raw(')');

    }

}