Version 4.5.0

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

@@ -0,0 +1,47 @@
+<?php
+namespace GraphQL\Validator\Rules;
+
+use GraphQL\Error\Error;
+use GraphQL\Language\AST\DocumentNode;
+use GraphQL\Language\AST\Node;
+use GraphQL\Language\AST\NodeKind;
+use GraphQL\Language\AST\OperationDefinitionNode;
+use GraphQL\Utils\Utils;
+use GraphQL\Validator\ValidationContext;
+
+/**
+ * Lone anonymous operation
+ *
+ * A GraphQL document is only valid if when it contains an anonymous operation
+ * (the query short-hand) that it contains only that one operation definition.
+ */
+class LoneAnonymousOperation extends AbstractValidationRule
+{
+    static function anonOperationNotAloneMessage()
+    {
+        return 'This anonymous operation must be the only defined operation.';
+    }
+
+    public function getVisitor(ValidationContext $context)
+    {
+        $operationCount = 0;
+        return [
+            NodeKind::DOCUMENT => function(DocumentNode $node) use (&$operationCount) {
+                $tmp = Utils::filter(
+                    $node->definitions,
+                    function ($definition) {
+                        return $definition->kind === NodeKind::OPERATION_DEFINITION;
+                    }
+                );
+                $operationCount = count($tmp);
+            },
+            NodeKind::OPERATION_DEFINITION => function(OperationDefinitionNode $node) use (&$operationCount, $context) {
+                if (!$node->name && $operationCount > 1) {
+                    $context->reportError(
+                        new Error(self::anonOperationNotAloneMessage(), [$node])
+                    );
+                }
+            }
+        ];
+    }
+}