<?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\ExpressionParser\Infix;
use Twig\Attribute\FirstClassTwigCallableReady;
use Twig\ExpressionParser\AbstractExpressionParser;
use Twig\ExpressionParser\ExpressionParserDescriptionInterface;
use Twig\ExpressionParser\InfixAssociativity;
use Twig\ExpressionParser\InfixExpressionParserInterface;
use Twig\Node\Expression\AbstractExpression;
use Twig\Node\Expression\ArrayExpression;
use Twig\Node\Expression\MacroReferenceExpression;
use Twig\Node\Expression\NameExpression;
use Twig\Node\Nodes;
use Twig\Parser;
use Twig\Token;
use Twig\TwigTest;
/**
* @internal
*/
class IsExpressionParser extends AbstractExpressionParser implements InfixExpressionParserInterface, ExpressionParserDescriptionInterface
{
use ArgumentsTrait;
private $readyNodes = [];
public function parse(Parser $parser, AbstractExpression $expr, Token $token): AbstractExpression
{
$stream = $parser->getStream();
$test = $parser->getTest($token->getLine());
$arguments = null;
if ($stream->test(Token::OPERATOR_TYPE, '(')) {
$arguments = $this->parseNamedArguments($parser);
} elseif ($test->hasOneMandatoryArgument()) {
$arguments = new Nodes([0 => $parser->parseExpression($this->getPrecedence())]);
}
if ('defined' === $test->getName() && $expr instanceof NameExpression && null !== $alias = $parser->getImportedSymbol('function', $expr->getAttribute('name'))) {
$expr = new MacroReferenceExpression($alias['node']->getNode('var'), $alias['name'], new ArrayExpression([], $expr->getTemplateLine()), $expr->getTemplateLine());
}
$ready = $test instanceof TwigTest;
if (!isset($this->readyNodes[$class = $test->getNodeClass()])) {
$this->readyNodes[$class] = (bool) (new \ReflectionClass($class))->getConstructor()->getAttributes(FirstClassTwigCallableReady::class);
}
if (!$ready = $this->readyNodes[$class]) {
trigger_deprecation('twig/twig', '3.12', 'Twig node "%s" is not marked as ready for passing a "TwigTest" in the constructor instead of its name; please update your code and then add #[FirstClassTwigCallableReady] attribute to the constructor.', $class);
}
return new $class($expr, $ready ? $test : $test->getName(), $arguments, $stream->getCurrent()->getLine());
}
public function getPrecedence(): int
{
return 100;
}
public function getName(): string
{
return 'is';
}
public function getDescription(): string
{
return 'Twig tests';
}
public function getAssociativity(): InfixAssociativity
{
return InfixAssociativity::Left;
}
}
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