| import { GraphQLError } from "../../error/GraphQLError.mjs"; |
| |
| /** |
| * Lone Schema definition |
| * |
| * A GraphQL document is only valid if it contains only one schema definition. |
| */ |
| export function LoneSchemaDefinitionRule(context) { |
| var _ref, _ref2, _ref3; |
| |
| var oldSchema = context.getSchema(); |
| var alreadyDefined = (_ref = (_ref2 = (_ref3 = oldSchema === null || oldSchema === void 0 ? void 0 : oldSchema.astNode) !== null && _ref3 !== void 0 ? _ref3 : oldSchema === null || oldSchema === void 0 ? void 0 : oldSchema.getQueryType()) !== null && _ref2 !== void 0 ? _ref2 : oldSchema === null || oldSchema === void 0 ? void 0 : oldSchema.getMutationType()) !== null && _ref !== void 0 ? _ref : oldSchema === null || oldSchema === void 0 ? void 0 : oldSchema.getSubscriptionType(); |
| var schemaDefinitionsCount = 0; |
| return { |
| SchemaDefinition: function 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; |
| } |
| }; |
| } |