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<?php |
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/* |
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* This file is part of the PHP Translation package. |
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* |
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* (c) PHP Translation team <[email protected]> |
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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 Translation\Bundle\Twig\Visitor; |
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use Translation\Bundle\Twig\Node\Transchoice; |
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use Twig\Environment; |
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use Twig\Node\Expression\ArrayExpression; |
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use Twig\Node\Expression\Binary\EqualBinary; |
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use Twig\Node\Expression\ConditionalExpression; |
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use Twig\Node\Expression\ConstantExpression; |
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use Twig\Node\Expression\FilterExpression; |
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use Twig\Node\Node; |
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use Twig\NodeVisitor\AbstractNodeVisitor; |
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/** |
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* Applies the value of the "desc" filter if the "trans" filter has no |
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* translations. |
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* |
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* This is only active in your development environment. |
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* |
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* @author Johannes M. Schmitt <[email protected]> |
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*/ |
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final class DefaultApplyingNodeVisitor extends AbstractNodeVisitor |
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{ |
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/** |
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* @var bool |
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*/ |
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private $enabled = true; |
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public function setEnabled(bool $bool): void |
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{ |
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$this->enabled = $bool; |
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} |
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public function doEnterNode(Node $node, Environment $env): Node |
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{ |
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if (!$this->enabled) { |
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return $node; |
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} |
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1 |
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if (!($node instanceof FilterExpression && 'desc' === $node->getNode('filter')->getAttribute('value'))) { |
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return $node; |
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} |
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$transNode = $node->getNode('node'); |
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while ($transNode instanceof FilterExpression |
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&& 'trans' !== $transNode->getNode('filter')->getAttribute('value') |
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&& 'transchoice' !== $transNode->getNode('filter')->getAttribute('value')) { |
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$transNode = $transNode->getNode('node'); |
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} |
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if (!$transNode instanceof FilterExpression) { |
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throw new \RuntimeException('The "desc" filter must be applied after a "trans", or "transchoice" filter.'); |
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} |
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$wrappingNode = $node->getNode('node'); |
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$testNode = clone $wrappingNode; |
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$defaultNode = $node->getNode('arguments')->getNode(0); |
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// if the |transchoice filter is used, delegate the call to the TranslationExtension |
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// so that we can catch a possible exception when the default translation has not yet |
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// been extracted |
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if ('transchoice' === $transNode->getNode('filter')->getAttribute('value')) { |
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$transchoiceArguments = new ArrayExpression([], $transNode->getTemplateLine()); |
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$transchoiceArguments->addElement($wrappingNode->getNode('node')); |
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$transchoiceArguments->addElement($defaultNode); |
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foreach ($wrappingNode->getNode('arguments') as $arg) { |
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$transchoiceArguments->addElement($arg); |
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} |
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$transchoiceNode = new Transchoice($transchoiceArguments, $transNode->getTemplateLine()); |
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$node->setNode('node', $transchoiceNode); |
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return $node; |
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} |
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// if the |trans filter has replacements parameters |
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// (e.g. |trans({'%foo%': 'bar'})) |
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if ($wrappingNode->getNode('arguments')->hasNode(0)) { |
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$lineno = $wrappingNode->getTemplateLine(); |
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// remove the replacements from the test node |
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$testNode->setNode('arguments', clone $testNode->getNode('arguments')); |
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$testNode->getNode('arguments')->setNode(0, new ArrayExpression([], $lineno)); |
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// wrap the default node in a |replace filter |
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$defaultNode = new FilterExpression( |
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clone $node->getNode('arguments')->getNode(0), |
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new ConstantExpression('replace', $lineno), |
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new Node([ |
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clone $wrappingNode->getNode('arguments')->getNode(0), |
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]), |
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$lineno |
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); |
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} |
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$condition = new ConditionalExpression( |
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new EqualBinary($testNode, $transNode->getNode('node'), $wrappingNode->getTemplateLine()), |
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$defaultNode, |
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clone $wrappingNode, |
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$wrappingNode->getTemplateLine() |
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); |
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$node->setNode('node', $condition); |
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return $node; |
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} |
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1 |
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public function doLeaveNode(Node $node, Environment $env): Node |
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{ |
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return $node; |
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} |
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public function getPriority(): int |
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{ |
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return -2; |
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} |
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} |
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php-translation /
symfony-bundle
