<?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\TokenParser;
use Twig\Error\SyntaxError;
use Twig\Node\Node;
use Twig\Node\SetNode;
use Twig\Token;
/**
* Defines a variable.
*
* {% set foo = 'foo' %}
* {% set foo = [1, 2] %}
* {% set foo = {'foo': 'bar'} %}
* {% set foo = 'foo' ~ 'bar' %}
* {% set foo, bar = 'foo', 'bar' %}
* {% set foo %}Some content{% endset %}
*
* @internal
*/
final class SetTokenParser extends AbstractTokenParser
{
public function parse(Token $token): Node
{
$lineno = $token->getLine();
$stream = $this->parser->getStream();
$names = $this->parser->getExpressionParser()->parseAssignmentExpression();
$capture = false;
if ($stream->nextIf(/* Token::OPERATOR_TYPE */ 8, '=')) {
$values = $this->parser->getExpressionParser()->parseMultitargetExpression();
$stream->expect(/* Token::BLOCK_END_TYPE */ 3);
if (\count($names) !== \count($values)) {
throw new SyntaxError('When using set, you must have the same number of variables and assignments.', $stream->getCurrent()->getLine(), $stream->getSourceContext());
}
} else {
$capture = true;
if (\count($names) > 1) {
throw new SyntaxError('When using set with a block, you cannot have a multi-target.', $stream->getCurrent()->getLine(), $stream->getSourceContext());
}
$stream->expect(/* Token::BLOCK_END_TYPE */ 3);
$values = $this->parser->subparse([$this, 'decideBlockEnd'], true);
$stream->expect(/* Token::BLOCK_END_TYPE */ 3);
}
return new SetNode($capture, $names, $values, $lineno, $this->getTag());
}
public function decideBlockEnd(Token $token): bool
{
return $token->test('endset');
}
public function getTag(): string
{
return 'set';
}
}