Version 4.6.0

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

@@ -1,21 +1,21 @@
 <?php
+
+declare(strict_types=1);
+
 namespace GraphQL\Validator\Rules;
 
 use GraphQL\Error\Error;
-use GraphQL\Language\AST\ArgumentNode;
 use GraphQL\Language\AST\FragmentDefinitionNode;
-use GraphQL\Language\AST\Node;
+use GraphQL\Language\AST\NameNode;
 use GraphQL\Language\AST\NodeKind;
 use GraphQL\Language\Visitor;
+use GraphQL\Language\VisitorOperation;
 use GraphQL\Validator\ValidationContext;
+use function sprintf;
 
-class UniqueFragmentNames extends AbstractValidationRule
+class UniqueFragmentNames extends ValidationRule
 {
-    static function duplicateFragmentNameMessage($fragName)
-    {
-        return "There can be only one fragment named \"$fragName\".";
-    }
-
+    /** @var NameNode[] */
     public $knownFragmentNames;
 
     public function getVisitor(ValidationContext $context)
@@ -23,21 +23,27 @@ class UniqueFragmentNames extends AbstractValidationRule
         $this->knownFragmentNames = [];
 
         return [
-            NodeKind::OPERATION_DEFINITION => function () {
+            NodeKind::OPERATION_DEFINITION => static function () : VisitorOperation {
                 return Visitor::skipNode();
             },
-            NodeKind::FRAGMENT_DEFINITION => function (FragmentDefinitionNode $node) use ($context) {
+            NodeKind::FRAGMENT_DEFINITION  => function (FragmentDefinitionNode $node) use ($context) : VisitorOperation {
                 $fragmentName = $node->name->value;
-                if (!empty($this->knownFragmentNames[$fragmentName])) {
+                if (! isset($this->knownFragmentNames[$fragmentName])) {
+                    $this->knownFragmentNames[$fragmentName] = $node->name;
+                } else {
                     $context->reportError(new Error(
                         self::duplicateFragmentNameMessage($fragmentName),
-                        [ $this->knownFragmentNames[$fragmentName], $node->name ]
+                        [$this->knownFragmentNames[$fragmentName], $node->name]
                     ));
-                } else {
-                    $this->knownFragmentNames[$fragmentName] = $node->name;
                 }
+
                 return Visitor::skipNode();
-            }
+            },
         ];
     }
+
+    public static function duplicateFragmentNameMessage($fragName)
+    {
+        return sprintf('There can be only one fragment named "%s".', $fragName);
+    }
 }