53 lines
1.3 KiB
PHP
53 lines
1.3 KiB
PHP
<?php
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/*
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* This file is part of Twig.
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*
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* (c) Fabien Potencier
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* (c) Armin Ronacher
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespace Twig\TokenParser;
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use Twig\Error\SyntaxError;
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use Twig\Node\Node;
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use Twig\Token;
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/**
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* Extends a template by another one.
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*
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* {% extends "base.html" %}
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*
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* @internal
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*/
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final class ExtendsTokenParser extends AbstractTokenParser
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{
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public function parse(Token $token): Node
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{
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$stream = $this->parser->getStream();
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if ($this->parser->peekBlockStack()) {
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throw new SyntaxError('Cannot use "extend" in a block.', $token->getLine(), $stream->getSourceContext());
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} elseif (!$this->parser->isMainScope()) {
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throw new SyntaxError('Cannot use "extend" in a macro.', $token->getLine(), $stream->getSourceContext());
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}
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if (null !== $this->parser->getParent()) {
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throw new SyntaxError('Multiple extends tags are forbidden.', $token->getLine(), $stream->getSourceContext());
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}
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$this->parser->setParent($this->parser->getExpressionParser()->parseExpression());
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$stream->expect(/* Token::BLOCK_END_TYPE */ 3);
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return new Node();
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}
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public function getTag(): string
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{
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return 'extends';
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}
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}
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