function NodeExtension::translateNegation

1 call to NodeExtension::translateNegation()

NodeExtension::getNodeTranslators in vendor/symfony/css-selector/XPath/Extension/NodeExtension.php

Returns node translators.

File

vendor/symfony/css-selector/XPath/Extension/NodeExtension.php, line 87

Class

NodeExtension

XPath expression translator node extension.

Namespace

Symfony\Component\CssSelector\XPath\Extension

Code

public function translateNegation(Node\NegationNode $node, Translator $translator) : XPathExpr {
    $xpath = $translator->nodeToXPath($node->getSelector());
    $subXpath = $translator->nodeToXPath($node->getSubSelector());
    $subXpath->addNameTest();
    if ($subXpath->getCondition()) {
        return $xpath->addCondition(\sprintf('not(%s)', $subXpath->getCondition()));
    }
    return $xpath->addCondition('0');
}