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IfNode.php
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<?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 Twig\Node; use Twig\Compiler; /** * Represents an if node. * * @author Fabien Potencier <fabien@symfony.com> */ class IfNode extends Node { public function __construct(Node $tests, ?Node $else, int $lineno, string $tag = null) { $nodes = ['tests' => $tests]; if (null !== $else) { $nodes['else'] = $else; } parent::__construct($nodes, [], $lineno, $tag); } public function compile(Compiler $compiler): void { $compiler->addDebugInfo($this); for ($i = 0, $count = \count($this->getNode('tests')); $i < $count; $i += 2) { if ($i > 0) { $compiler ->outdent() ->write('} elseif (') ; } else { $compiler ->write('if (') ; } $compiler ->subcompile($this->getNode('tests')->getNode($i)) ->raw(") {\n") ->indent() ; // The node might not exists if the content is empty if ($this->getNode('tests')->hasNode($i + 1)) { $compiler->subcompile($this->getNode('tests')->getNode($i + 1)); } } if ($this->hasNode('else')) { $compiler ->outdent() ->write("} else {\n") ->indent() ->subcompile($this->getNode('else')) ; } $compiler ->outdent() ->write("}\n"); } }