From 99c1d9af689e5325f3cf535c4007b3aeb8325229 Mon Sep 17 00:00:00 2001
From: Minteck <contact@minteck.org>
Date: Tue, 10 Jan 2023 14:54:04 +0100
Subject: Update - This is an automated commit

---
 .../rules/LoneSchemaDefinitionRule.js.flow         | 43 ++++++++++++++++++++++
 1 file changed, 43 insertions(+)
 create mode 100644 school/node_modules/graphql/validation/rules/LoneSchemaDefinitionRule.js.flow

(limited to 'school/node_modules/graphql/validation/rules/LoneSchemaDefinitionRule.js.flow')

diff --git a/school/node_modules/graphql/validation/rules/LoneSchemaDefinitionRule.js.flow b/school/node_modules/graphql/validation/rules/LoneSchemaDefinitionRule.js.flow
new file mode 100644
index 0000000..420a2a0
--- /dev/null
+++ b/school/node_modules/graphql/validation/rules/LoneSchemaDefinitionRule.js.flow
@@ -0,0 +1,43 @@
+// @flow strict
+import { GraphQLError } from '../../error/GraphQLError';
+import type { ASTVisitor } from '../../language/visitor';
+
+import type { SDLValidationContext } from '../ValidationContext';
+
+/**
+ * Lone Schema definition
+ *
+ * A GraphQL document is only valid if it contains only one schema definition.
+ */
+export function LoneSchemaDefinitionRule(
+  context: SDLValidationContext,
+): ASTVisitor {
+  const oldSchema = context.getSchema();
+  const alreadyDefined =
+    oldSchema?.astNode ??
+    oldSchema?.getQueryType() ??
+    oldSchema?.getMutationType() ??
+    oldSchema?.getSubscriptionType();
+
+  let schemaDefinitionsCount = 0;
+  return {
+    SchemaDefinition(node) {
+      if (alreadyDefined) {
+        context.reportError(
+          new GraphQLError(
+            'Cannot define a new schema within a schema extension.',
+            node,
+          ),
+        );
+        return;
+      }
+
+      if (schemaDefinitionsCount > 0) {
+        context.reportError(
+          new GraphQLError('Must provide only one schema definition.', node),
+        );
+      }
+      ++schemaDefinitionsCount;
+    },
+  };
+}
-- 
cgit