<?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 WPML\Core\Twig\Node;

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use WPML\Core\Twig\Compiler;

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use WPML\Core\Twig\Node\Expression\AbstractExpression;

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use WPML\Core\Twig\Node\Expression\AssignNameExpression;

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/**

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* Represents a for node.

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*

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* @author Fabien Potencier <fabien@symfony.com>

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*/

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class ForNode extends \WPML\Core\Twig\Node\Node

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{

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protected $loop;

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public function __construct(\WPML\Core\Twig\Node\Expression\AssignNameExpression $keyTarget, \WPML\Core\Twig\Node\Expression\AssignNameExpression $valueTarget, \WPML\Core\Twig\Node\Expression\AbstractExpression $seq, \WPML\Core\Twig\Node\Expression\AbstractExpression $ifexpr = null, \WPML\Core\Twig_NodeInterface $body, \WPML\Core\Twig_NodeInterface $else = null, $lineno, $tag = null)

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{

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$body = new \WPML\Core\Twig\Node\Node([$body, $this->loop = new \WPML\Core\Twig\Node\ForLoopNode($lineno, $tag)]);

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if (null !== $ifexpr) {

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$body = new \WPML\Core\Twig\Node\IfNode(new \WPML\Core\Twig\Node\Node([$ifexpr, $body]), null, $lineno, $tag);

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}

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$nodes = ['key_target' => $keyTarget, 'value_target' => $valueTarget, 'seq' => $seq, 'body' => $body];

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if (null !== $else) {

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$nodes['else'] = $else;

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}

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parent::__construct($nodes, ['with_loop' => \true, 'ifexpr' => null !== $ifexpr], $lineno, $tag);

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}

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public function compile(\WPML\Core\Twig\Compiler $compiler)

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{

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$compiler->addDebugInfo($this)->write("\$context['_parent'] = \$context;\n")->write("\$context['_seq'] = twig_ensure_traversable(")->subcompile($this->getNode('seq'))->raw(");\n");

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if ($this->hasNode('else')) {

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$compiler->write("\$context['_iterated'] = false;\n");

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}

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if ($this->getAttribute('with_loop')) {

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$compiler->write("\$context['loop'] = [\n")->write(" 'parent' => \$context['_parent'],\n")->write(" 'index0' => 0,\n")->write(" 'index' => 1,\n")->write(" 'first' => true,\n")->write("];\n");

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if (!$this->getAttribute('ifexpr')) {

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$compiler->write("if (is_array(\$context['_seq']) || (is_object(\$context['_seq']) && \$context['_seq'] instanceof \\Countable)) {\n")->indent()->write("\$length = count(\$context['_seq']);\n")->write("\$context['loop']['revindex0'] = \$length - 1;\n")->write("\$context['loop']['revindex'] = \$length;\n")->write("\$context['loop']['length'] = \$length;\n")->write("\$context['loop']['last'] = 1 === \$length;\n")->outdent()->write("}\n");

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}

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}

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$this->loop->setAttribute('else', $this->hasNode('else'));

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$this->loop->setAttribute('with_loop', $this->getAttribute('with_loop'));

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$this->loop->setAttribute('ifexpr', $this->getAttribute('ifexpr'));

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$compiler->write("foreach (\$context['_seq'] as ")->subcompile($this->getNode('key_target'))->raw(' => ')->subcompile($this->getNode('value_target'))->raw(") {\n")->indent()->subcompile($this->getNode('body'))->outdent()->write("}\n");

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if ($this->hasNode('else')) {

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$compiler->write("if (!\$context['_iterated']) {\n")->indent()->subcompile($this->getNode('else'))->outdent()->write("}\n");

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}

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$compiler->write("\$_parent = \$context['_parent'];\n");

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// remove some "private" loop variables (needed for nested loops)

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$compiler->write('unset($context[\'_seq\'], $context[\'_iterated\'], $context[\'' . $this->getNode('key_target')->getAttribute('name') . '\'], $context[\'' . $this->getNode('value_target')->getAttribute('name') . '\'], $context[\'_parent\'], $context[\'loop\']);' . "\n");

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// keep the values set in the inner context for variables defined in the outer context

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$compiler->write("\$context = array_intersect_key(\$context, \$_parent) + \$_parent;\n");

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}

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}

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\class_alias('WPML\\Core\\Twig\\Node\\ForNode', 'WPML\\Core\\Twig_Node_For');

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