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| 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, _oldSchema$astNode; | |
| const oldSchema = context.getSchema(); | |
| const alreadyDefined = | |
| (_ref = | |
| (_ref2 = | |
| (_oldSchema$astNode = | |
| oldSchema === null || oldSchema === void 0 | |
| ? void 0 | |
| : oldSchema.astNode) !== null && _oldSchema$astNode !== void 0 | |
| ? _oldSchema$astNode | |
| : 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(); | |
| let schemaDefinitionsCount = 0; | |
| return { | |
| SchemaDefinition(node) { | |
| if (alreadyDefined) { | |
| context.reportError( | |
| new GraphQLError( | |
| 'Cannot define a new schema within a schema extension.', | |
| { | |
| nodes: node, | |
| }, | |
| ), | |
| ); | |
| return; | |
| } | |
| if (schemaDefinitionsCount > 0) { | |
| context.reportError( | |
| new GraphQLError('Must provide only one schema definition.', { | |
| nodes: node, | |
| }), | |
| ); | |
| } | |
| ++schemaDefinitionsCount; | |
| }, | |
| }; | |
| } | |