function CompiledUrlMatcherDumper::getExpressionLanguage

File

vendor/symfony/routing/Matcher/Dumper/CompiledUrlMatcherDumper.php, line 443

Class

CompiledUrlMatcherDumper

CompiledUrlMatcherDumper creates PHP arrays to be used with CompiledUrlMatcher.

Namespace

Symfony\Component\Routing\Matcher\Dumper

Code

private function getExpressionLanguage() : ExpressionLanguage {
    if (!isset($this->expressionLanguage)) {
        if (!class_exists(ExpressionLanguage::class)) {
            throw new \LogicException('Unable to use expressions as the Symfony ExpressionLanguage component is not installed. Try running "composer require symfony/expression-language".');
        }
        $this->expressionLanguage = new ExpressionLanguage(null, $this->expressionLanguageProviders);
    }
    return $this->expressionLanguage;
}