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<?php
/* * This file is part of the Symfony package. * * (c) Fabien Potencier <fabien@symfony.com> * * For the full copyright and license information, please view the LICENSE * file that was distributed with this source code. */
namespace Symfony\Component\ExpressionLanguage\Node;
use Symfony\Component\ExpressionLanguage\Compiler;
/** * @author Fabien Potencier <fabien@symfony.com> * * @internal */ class ArrayNode extends Node { protected $index;
public function __construct() { $this->index = -1; }
public function addElement(Node $value, Node $key = null) { if (null === $key) { $key = new ConstantNode(++$this->index); }
array_push($this->nodes, $key, $value); }
/** * Compiles the node to PHP. */ public function compile(Compiler $compiler) { $compiler->raw('array('); $this->compileArguments($compiler); $compiler->raw(')'); }
public function evaluate($functions, $values) { $result = array(); foreach ($this->getKeyValuePairs() as $pair) { $result[$pair['key']->evaluate($functions, $values)] = $pair['value']->evaluate($functions, $values); }
return $result; }
protected function getKeyValuePairs() { $pairs = array(); foreach (array_chunk($this->nodes, 2) as $pair) { $pairs[] = array('key' => $pair[0], 'value' => $pair[1]); }
return $pairs; }
protected function compileArguments(Compiler $compiler, $withKeys = true) { $first = true; foreach ($this->getKeyValuePairs() as $pair) { if (!$first) { $compiler->raw(', '); } $first = false;
if ($withKeys) { $compiler ->compile($pair['key']) ->raw(' => ') ; }
$compiler->compile($pair['value']); } } }
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