Version 4.5.0

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

@@ -0,0 +1,45 @@
+<?php
+namespace GraphQL\Validator\Rules;
+
+use GraphQL\Error\Error;
+use GraphQL\Language\AST\Node;
+use GraphQL\Language\AST\NodeKind;
+use GraphQL\Language\AST\OperationDefinitionNode;
+use GraphQL\Language\Visitor;
+use GraphQL\Validator\ValidationContext;
+
+class UniqueOperationNames extends AbstractValidationRule
+{
+    static function duplicateOperationNameMessage($operationName)
+    {
+      return "There can be only one operation named \"$operationName\".";
+    }
+
+    public $knownOperationNames;
+
+    public function getVisitor(ValidationContext $context)
+    {
+        $this->knownOperationNames = [];
+
+        return [
+            NodeKind::OPERATION_DEFINITION => function(OperationDefinitionNode $node) use ($context) {
+                $operationName = $node->name;
+
+                if ($operationName) {
+                    if (!empty($this->knownOperationNames[$operationName->value])) {
+                        $context->reportError(new Error(
+                            self::duplicateOperationNameMessage($operationName->value),
+                            [ $this->knownOperationNames[$operationName->value], $operationName ]
+                        ));
+                    } else {
+                        $this->knownOperationNames[$operationName->value] = $operationName;
+                    }
+                }
+                return Visitor::skipNode();
+            },
+            NodeKind::FRAGMENT_DEFINITION => function() {
+                return Visitor::skipNode();
+            }
+        ];
+    }
+}