composer update

vendor/symfony/css-selector/CssSelectorConverter.php

@@ -27,6 +27,10 @@ use Symfony\Component\CssSelector\XPath\Translator;
 class CssSelectorConverter
 {
     private $translator;
+    private $cache;
+
+    private static $xmlCache = [];
+    private static $htmlCache = [];
 
     /**
      * @param bool $html Whether HTML support should be enabled. Disable it for XML documents
@@ -37,6 +41,9 @@ class CssSelectorConverter
 
         if ($html) {
             $this->translator->registerExtension(new HtmlExtension($this->translator));
+            $this->cache = &self::$htmlCache;
+        } else {
+            $this->cache = &self::$xmlCache;
         }
 
         $this->translator
@@ -57,6 +64,6 @@ class CssSelectorConverter
      */
     public function toXPath(string $cssExpr, string $prefix = 'descendant-or-self::')
     {
-        return $this->translator->cssToXPath($cssExpr, $prefix);
+        return $this->cache[$prefix][$cssExpr] ?? $this->cache[$prefix][$cssExpr] = $this->translator->cssToXPath($cssExpr, $prefix);
     }
 }