Optimize perf by replacing call_user_func with dynamic vars

Author: ostrolucky

XPath/Translator.php

@@ -155,7 +155,7 @@ public function nodeToXPath(NodeInterface $node): XPathExpr
             throw new ExpressionErrorException(sprintf('Node "%s" not supported.', $node->getNodeName()));
         }
 
-        return \call_user_func($this->nodeTranslators[$node->getNodeName()], $node, $this);
+        return $this->nodeTranslators[$node->getNodeName()]($node, $this);
     }
 
     /**
@@ -167,7 +167,7 @@ public function addCombination(string $combiner, NodeInterface $xpath, NodeInter
             throw new ExpressionErrorException(sprintf('Combiner "%s" not supported.', $combiner));
         }
 
-        return \call_user_func($this->combinationTranslators[$combiner], $this->nodeToXPath($xpath), $this->nodeToXPath($combinedXpath));
+        return $this->combinationTranslators[$combiner]($this->nodeToXPath($xpath), $this->nodeToXPath($combinedXpath));
     }
 
     /**
@@ -179,7 +179,7 @@ public function addFunction(XPathExpr $xpath, FunctionNode $function): XPathExpr
             throw new ExpressionErrorException(sprintf('Function "%s" not supported.', $function->getName()));
         }
 
-        return \call_user_func($this->functionTranslators[$function->getName()], $xpath, $function);
+        return $this->functionTranslators[$function->getName()]($xpath, $function);
     }
 
     /**
@@ -191,7 +191,7 @@ public function addPseudoClass(XPathExpr $xpath, string $pseudoClass): XPathExpr
             throw new ExpressionErrorException(sprintf('Pseudo-class "%s" not supported.', $pseudoClass));
         }
 
-        return \call_user_func($this->pseudoClassTranslators[$pseudoClass], $xpath);
+        return $this->pseudoClassTranslators[$pseudoClass]($xpath);
     }
 
     /**
@@ -203,7 +203,7 @@ public function addAttributeMatching(XPathExpr $xpath, string $operator, string
             throw new ExpressionErrorException(sprintf('Attribute matcher operator "%s" not supported.', $operator));
         }
 
-        return \call_user_func($this->attributeMatchingTranslators[$operator], $xpath, $attribute, $value);
+        return $this->attributeMatchingTranslators[$operator]($xpath, $attribute, $value);
     }
 
     /**