graphql/validation/rules/LoneSchemaDefinitionRule.mjs.map

A Query Language and Runtime which can target any service.

{"version":3,"file":"LoneSchemaDefinitionRule.js","sourceRoot":"","sources":["../../../src/validation/rules/LoneSchemaDefinitionRule.ts"],"names":[],"mappings":"AAEA,OAAO,EAAE,YAAY,EAAE,qCAAoC;AA+B3D,MAAM,UAAU,wBAAwB,CACtC,OAA6B;IAE7B,MAAM,SAAS,GAAG,OAAO,CAAC,SAAS,EAAE,CAAC;IACtC,MAAM,cAAc,GAClB,SAAS,EAAE,OAAO;QAClB,SAAS,EAAE,YAAY,EAAE;QACzB,SAAS,EAAE,eAAe,EAAE;QAC5B,SAAS,EAAE,mBAAmB,EAAE,CAAC;IAEnC,IAAI,sBAAsB,GAAG,CAAC,CAAC;IAC/B,OAAO;QACL,gBAAgB,CAAC,IAAI;YACnB,IAAI,cAAc,EAAE,CAAC;gBACnB,OAAO,CAAC,WAAW,CACjB,IAAI,YAAY,CACd,uDAAuD,EACvD,EAAE,KAAK,EAAE,IAAI,EAAE,CAChB,CACF,CAAC;gBACF,OAAO;YACT,CAAC;YAED,IAAI,sBAAsB,GAAG,CAAC,EAAE,CAAC;gBAC/B,OAAO,CAAC,WAAW,CACjB,IAAI,YAAY,CAAC,0CAA0C,EAAE;oBAC3D,KAAK,EAAE,IAAI;iBACZ,CAAC,CACH,CAAC;YACJ,CAAC;YACD,EAAE,sBAAsB,CAAC;QAC3B,CAAC;KACF,CAAC;AACJ,CAAC","sourcesContent":["/** @category Validation Rules */\n\nimport { GraphQLError } from '../../error/GraphQLError.ts';\n\nimport type { ASTVisitor } from '../../language/visitor.ts';\n\nimport type { SDLValidationContext } from '../ValidationContext.ts';\n\n/**\n * Lone Schema definition\n *\n * A GraphQL document is only valid if it contains only one schema definition.\n * @param context - The validation context used while checking the document.\n * @returns A visitor that reports validation errors for this rule.\n * @example\n * ```ts\n * import { buildSchema } from 'graphql';\n * import { LoneSchemaDefinitionRule } from 'graphql/validation';\n *\n * const invalidSDL = `\n *   schema { query: Query } schema { query: Query } type Query { name: String }\n * `;\n *\n * LoneSchemaDefinitionRule.name; // => 'LoneSchemaDefinitionRule'\n * buildSchema(invalidSDL); // throws an error\n *\n * const validSDL = `\n *   schema { query: Query } type Query { name: String }\n * `;\n *\n * buildSchema(validSDL); // does not throw\n * ```\n */\nexport function LoneSchemaDefinitionRule(\n  context: SDLValidationContext,\n): ASTVisitor {\n  const oldSchema = context.getSchema();\n  const alreadyDefined =\n    oldSchema?.astNode ??\n    oldSchema?.getQueryType() ??\n    oldSchema?.getMutationType() ??\n    oldSchema?.getSubscriptionType();\n\n  let schemaDefinitionsCount = 0;\n  return {\n    SchemaDefinition(node) {\n      if (alreadyDefined) {\n        context.reportError(\n          new GraphQLError(\n            'Cannot define a new schema within a schema extension.',\n            { nodes: node },\n          ),\n        );\n        return;\n      }\n\n      if (schemaDefinitionsCount > 0) {\n        context.reportError(\n          new GraphQLError('Must provide only one schema definition.', {\n            nodes: node,\n          }),\n        );\n      }\n      ++schemaDefinitionsCount;\n    },\n  };\n}\n"]}