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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\IfNode; |
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use ElementorDeps\Twig\Node\Node; |
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use ElementorDeps\Twig\Token; |
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/** |
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* Tests a condition. |
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* |
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* {% if users %} |
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* <ul> |
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* {% for user in users %} |
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* <li>{{ user.username|e }}</li> |
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* {% endfor %} |
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* </ul> |
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* {% endif %} |
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* |
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* @internal |
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*/ |
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final class IfTokenParser 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 = $token->getLine(); |
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$expr = $this->parser->getExpressionParser()->parseExpression(); |
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$stream = $this->parser->getStream(); |
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$stream->expect( |
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/* Token::BLOCK_END_TYPE */ |
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3 |
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); |
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$body = $this->parser->subparse([$this, 'decideIfFork']); |
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$tests = [$expr, $body]; |
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$else = null; |
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$end = \false; |
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while (!$end) { |
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switch ($stream->next()->getValue()) { |
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case 'else': |
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$stream->expect( |
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/* Token::BLOCK_END_TYPE */ |
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3 |
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); |
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$else = $this->parser->subparse([$this, 'decideIfEnd']); |
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break; |
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case 'elseif': |
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$expr = $this->parser->getExpressionParser()->parseExpression(); |
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$stream->expect( |
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/* Token::BLOCK_END_TYPE */ |
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3 |
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); |
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$body = $this->parser->subparse([$this, 'decideIfFork']); |
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$tests[] = $expr; |
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$tests[] = $body; |
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break; |
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case 'endif': |
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$end = \true; |
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break; |
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default: |
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throw new SyntaxError(\sprintf('Unexpected end of template. Twig was looking for the following tags "else", "elseif", or "endif" to close the "if" block started at line %d).', $lineno), $stream->getCurrent()->getLine(), $stream->getSourceContext()); |
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} |
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} |
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$stream->expect( |
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/* Token::BLOCK_END_TYPE */ |
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3 |
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); |
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return new IfNode(new Node($tests), $else, $lineno, $this->getTag()); |
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} |
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public function decideIfFork(Token $token) : bool |
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{ |
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return $token->test(['elseif', 'else', 'endif']); |
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} |
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public function decideIfEnd(Token $token) : bool |
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{ |
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return $token->test(['endif']); |
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} |
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public function getTag() : string |
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{ |
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return 'if'; |
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} |
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} |
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|
