Файл: upload/core/vendor/twig/twig/src/TokenParser/ForTokenParser.php
Строк: 92
<?php
/*
* This file is part of Twig.
*
* (c) Fabien Potencier
* (c) Armin Ronacher
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace TwigTokenParser;
use TwigNodeExpressionVariableAssignContextVariable;
use TwigNodeForElseNode;
use TwigNodeForNode;
use TwigNodeNode;
use TwigToken;
/**
* Loops over each item of a sequence.
*
* <ul>
* {% for user in users %}
* <li>{{ user.username|e }}</li>
* {% endfor %}
* </ul>
*
* @internal
*/
final class ForTokenParser extends AbstractTokenParser
{
public function parse(Token $token): Node
{
$lineno = $token->getLine();
$stream = $this->parser->getStream();
$targets = $this->parseAssignmentExpression();
$stream->expect(Token::OPERATOR_TYPE, 'in');
$seq = $this->parser->parseExpression();
$stream->expect(Token::BLOCK_END_TYPE);
$body = $this->parser->subparse([$this, 'decideForFork']);
if ('else' == $stream->next()->getValue()) {
$elseLineno = $stream->getCurrent()->getLine();
$stream->expect(Token::BLOCK_END_TYPE);
$else = new ForElseNode($this->parser->subparse([$this, 'decideForEnd'], true), $elseLineno);
} else {
$else = null;
}
$stream->expect(Token::BLOCK_END_TYPE);
if (count($targets) > 1) {
$keyTarget = $targets->getNode('0');
$keyTarget = new AssignContextVariable($keyTarget->getAttribute('name'), $keyTarget->getTemplateLine());
$valueTarget = $targets->getNode('1');
} else {
$keyTarget = new AssignContextVariable('_key', $lineno);
$valueTarget = $targets->getNode('0');
}
$valueTarget = new AssignContextVariable($valueTarget->getAttribute('name'), $valueTarget->getTemplateLine());
return new ForNode($keyTarget, $valueTarget, $seq, null, $body, $else, $lineno);
}
public function decideForFork(Token $token): bool
{
return $token->test(['else', 'endfor']);
}
public function decideForEnd(Token $token): bool
{
return $token->test('endfor');
}
public function getTag(): string
{
return 'for';
}
}