refac: use ConditionalTernary when possible

Author: gimler

Twig/Visitor/DefaultApplyingNodeVisitor.php

@@ -18,6 +18,7 @@
 use Twig\Node\Expression\ConditionalExpression;
 use Twig\Node\Expression\ConstantExpression;
 use Twig\Node\Expression\FilterExpression;
+use Twig\Node\Expression\Ternary\ConditionalTernary;
 use Twig\Node\Node;
 use Twig\NodeVisitor\AbstractNodeVisitor;
 
@@ -103,12 +104,21 @@ public function doEnterNode(Node $node, Environment $env): Node
             );
         }
 
-        $condition = new ConditionalExpression(
-            new EqualBinary($testNode, $transNode->getNode('node'), $wrappingNode->getTemplateLine()),
-            $defaultNode,
-            clone $wrappingNode,
-            $wrappingNode->getTemplateLine()
-        );
+        if (class_exists(ConditionalTernary::class)) {
+            $condition = new ConditionalTernary(
+                new EqualBinary($testNode, $transNode->getNode('node'), $wrappingNode->getTemplateLine()),
+                $defaultNode,
+                clone $wrappingNode,
+                $wrappingNode->getTemplateLine()
+            );
+        } else {
+            $condition = new ConditionalExpression(
+                new EqualBinary($testNode, $transNode->getNode('node'), $wrappingNode->getTemplateLine()),
+                $defaultNode,
+                clone $wrappingNode,
+                $wrappingNode->getTemplateLine()
+            );
+        }
         $node->setNode('node', $condition);
 
         return $node;