ArrowFunctionExpression.php

<?php


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

use Twig\Compiler;
use Twig\Node\Node;

/**
 * Represents an arrow function.
 *
 * @author Fabien Potencier <fabien@symfony.com>
 */
class ArrowFunctionExpression extends AbstractExpression {
    public function __construct(AbstractExpression $expr, Node $names, $lineno) {
        parent::__construct([
            'expr' => $expr,
            'names' => $names,
        ], [], $lineno);
    }
    public function compile(Compiler $compiler) : void {
        $compiler->addDebugInfo($this)
            ->raw('function (');
        foreach ($this->getNode('names') as $i => $name) {
            if ($i) {
                $compiler->raw(', ');
            }
            $compiler->raw('$__')
                ->raw($name->getAttribute('name'))
                ->raw('__');
        }
        $compiler->raw(') use ($context, $macros) { ');
        foreach ($this->getNode('names') as $name) {
            $compiler->raw('$context["')
                ->raw($name->getAttribute('name'))
                ->raw('"] = $__')
                ->raw($name->getAttribute('name'))
                ->raw('__; ');
        }
        $compiler->raw('return ')
            ->subcompile($this->getNode('expr'))
            ->raw('; }');
    }

}