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<?php |
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|
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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 ElementorDeps\Twig\TokenParser; |
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|
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use ElementorDeps\Twig\Error\SyntaxError; |
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use ElementorDeps\Twig\Node\BlockNode; |
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use ElementorDeps\Twig\Node\BlockReferenceNode; |
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use ElementorDeps\Twig\Node\Node; |
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use ElementorDeps\Twig\Node\PrintNode; |
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use ElementorDeps\Twig\Token; |
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/** |
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* Marks a section of a template as being reusable. |
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* |
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* {% block head %} |
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* <link rel="stylesheet" href="style.css" /> |
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* <title>{% block title %}{% endblock %} - My Webpage</title> |
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* {% endblock %} |
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* |
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* @internal |
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*/ |
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final class BlockTokenParser extends AbstractTokenParser |
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{ |
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public function parse(Token $token) : Node |
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{ |
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$lineno = $token->getLine(); |
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$stream = $this->parser->getStream(); |
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$name = $stream->expect( |
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/* Token::NAME_TYPE */ |
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5 |
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)->getValue(); |
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if ($this->parser->hasBlock($name)) { |
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throw new SyntaxError(\sprintf("The block '%s' has already been defined line %d.", $name, $this->parser->getBlock($name)->getTemplateLine()), $stream->getCurrent()->getLine(), $stream->getSourceContext()); |
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} |
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$this->parser->setBlock($name, $block = new BlockNode($name, new Node([]), $lineno)); |
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$this->parser->pushLocalScope(); |
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$this->parser->pushBlockStack($name); |
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if ($stream->nextIf( |
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/* Token::BLOCK_END_TYPE */ |
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3 |
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)) { |
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$body = $this->parser->subparse([$this, 'decideBlockEnd'], \true); |
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if ($token = $stream->nextIf( |
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/* Token::NAME_TYPE */ |
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5 |
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)) { |
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$value = $token->getValue(); |
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if ($value != $name) { |
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throw new SyntaxError(\sprintf('Expected endblock for block "%s" (but "%s" given).', $name, $value), $stream->getCurrent()->getLine(), $stream->getSourceContext()); |
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} |
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} |
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} else { |
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$body = new Node([new PrintNode($this->parser->getExpressionParser()->parseExpression(), $lineno)]); |
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} |
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$stream->expect( |
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/* Token::BLOCK_END_TYPE */ |
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3 |
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); |
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$block->setNode('body', $body); |
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$this->parser->popBlockStack(); |
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$this->parser->popLocalScope(); |
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return new BlockReferenceNode($name, $lineno, $this->getTag()); |
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} |
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public function decideBlockEnd(Token $token) : bool |
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{ |
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return $token->test('endblock'); |
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} |
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public function getTag() : string |
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{ |
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return 'block'; |
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} |
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} |
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|
