Version 4.6.0

system/3rd_party/graphql-php/Validator/Rules/UniqueOperationNames.php

@@ -1,20 +1,21 @@
 <?php
+
+declare(strict_types=1);
+
 namespace GraphQL\Validator\Rules;
 
 use GraphQL\Error\Error;
-use GraphQL\Language\AST\Node;
+use GraphQL\Language\AST\NameNode;
 use GraphQL\Language\AST\NodeKind;
 use GraphQL\Language\AST\OperationDefinitionNode;
 use GraphQL\Language\Visitor;
+use GraphQL\Language\VisitorOperation;
 use GraphQL\Validator\ValidationContext;
+use function sprintf;
 
-class UniqueOperationNames extends AbstractValidationRule
+class UniqueOperationNames extends ValidationRule
 {
-    static function duplicateOperationNameMessage($operationName)
-    {
-      return "There can be only one operation named \"$operationName\".";
-    }
-
+    /** @var NameNode[] */
     public $knownOperationNames;
 
     public function getVisitor(ValidationContext $context)
@@ -22,24 +23,30 @@ class UniqueOperationNames extends AbstractValidationRule
         $this->knownOperationNames = [];
 
         return [
-            NodeKind::OPERATION_DEFINITION => function(OperationDefinitionNode $node) use ($context) {
+            NodeKind::OPERATION_DEFINITION => function (OperationDefinitionNode $node) use ($context) : VisitorOperation {
                 $operationName = $node->name;
 
-                if ($operationName) {
-                    if (!empty($this->knownOperationNames[$operationName->value])) {
+                if ($operationName !== null) {
+                    if (! isset($this->knownOperationNames[$operationName->value])) {
+                        $this->knownOperationNames[$operationName->value] = $operationName;
+                    } else {
                         $context->reportError(new Error(
                             self::duplicateOperationNameMessage($operationName->value),
-                            [ $this->knownOperationNames[$operationName->value], $operationName ]
+                            [$this->knownOperationNames[$operationName->value], $operationName]
                         ));
-                    } else {
-                        $this->knownOperationNames[$operationName->value] = $operationName;
                     }
                 }
+
                 return Visitor::skipNode();
             },
-            NodeKind::FRAGMENT_DEFINITION => function() {
+            NodeKind::FRAGMENT_DEFINITION  => static function () : VisitorOperation {
                 return Visitor::skipNode();
-            }
+            },
         ];
     }
+
+    public static function duplicateOperationNameMessage($operationName)
+    {
+        return sprintf('There can be only one operation named "%s".', $operationName);
+    }
 }