| 'use strict'; |
|
|
| Object.defineProperty(exports, '__esModule', { |
| value: true, |
| }); |
| exports.UniqueFragmentNamesRule = UniqueFragmentNamesRule; |
|
|
| var _GraphQLError = require('../../error/GraphQLError.js'); |
|
|
| /** |
| * Unique fragment names |
| * |
| * A GraphQL document is only valid if all defined fragments have unique names. |
| * |
| * See https://spec.graphql.org/draft/#sec-Fragment-Name-Uniqueness |
| */ |
| function UniqueFragmentNamesRule(context) { |
| const knownFragmentNames = Object.create(null); |
| return { |
| OperationDefinition: () => false, |
|
|
| FragmentDefinition(node) { |
| const fragmentName = node.name.value; |
|
|
| if (knownFragmentNames[fragmentName]) { |
| context.reportError( |
| new _GraphQLError.GraphQLError( |
| `There can be only one fragment named "${fragmentName}".`, |
| { |
| nodes: [knownFragmentNames[fragmentName], node.name], |
| }, |
| ), |
| ); |
| } else { |
| knownFragmentNames[fragmentName] = node.name; |
| } |
|
|
| return false; |
| }, |
| }; |
| } |