1<?php
2
3/*
4 * This file is part of Twig.
5 *
6 * (c) Fabien Potencier
7 *
8 * For the full copyright and license information, please view the LICENSE
9 * file that was distributed with this source code.
10 */
11
12namespace Twig\Node\Expression;
13
14use Twig\Compiler;
15use Twig\TwigFunction;
16
17class FunctionExpression extends CallExpression
18{
19    public function __construct($name, \Twig_NodeInterface $arguments, $lineno)
20    {
21        parent::__construct(['arguments' => $arguments], ['name' => $name, 'is_defined_test' => false], $lineno);
22    }
23
24    public function compile(Compiler $compiler)
25    {
26        $name = $this->getAttribute('name');
27        $function = $compiler->getEnvironment()->getFunction($name);
28
29        $this->setAttribute('name', $name);
30        $this->setAttribute('type', 'function');
31        $this->setAttribute('thing', $function);
32        $this->setAttribute('needs_environment', $function->needsEnvironment());
33        $this->setAttribute('needs_context', $function->needsContext());
34        $this->setAttribute('arguments', $function->getArguments());
35        if ($function instanceof \Twig_FunctionCallableInterface || $function instanceof TwigFunction) {
36            $callable = $function->getCallable();
37            if ('constant' === $name && $this->getAttribute('is_defined_test')) {
38                $callable = 'twig_constant_is_defined';
39            }
40
41            $this->setAttribute('callable', $callable);
42        }
43        if ($function instanceof TwigFunction) {
44            $this->setAttribute('is_variadic', $function->isVariadic());
45        }
46
47        $this->compileCallable($compiler);
48    }
49}
50
51class_alias('Twig\Node\Expression\FunctionExpression', 'Twig_Node_Expression_Function');
52