| 'use strict'; |
| |
| Object.defineProperty(exports, '__esModule', { |
| value: true, |
| }); |
| exports.ScalarLeafsRule = ScalarLeafsRule; |
| |
| var _inspect = require('../../jsutils/inspect.js'); |
| |
| var _GraphQLError = require('../../error/GraphQLError.js'); |
| |
| var _definition = require('../../type/definition.js'); |
| |
| /** |
| * Scalar leafs |
| * |
| * A GraphQL document is valid only if all leaf fields (fields without |
| * sub selections) are of scalar or enum types. |
| */ |
| function ScalarLeafsRule(context) { |
| return { |
| Field(node) { |
| const type = context.getType(); |
| const selectionSet = node.selectionSet; |
| |
| if (type) { |
| if ((0, _definition.isLeafType)((0, _definition.getNamedType)(type))) { |
| if (selectionSet) { |
| const fieldName = node.name.value; |
| const typeStr = (0, _inspect.inspect)(type); |
| context.reportError( |
| new _GraphQLError.GraphQLError( |
| `Field "${fieldName}" must not have a selection since type "${typeStr}" has no subfields.`, |
| { |
| nodes: selectionSet, |
| }, |
| ), |
| ); |
| } |
| } else if (!selectionSet) { |
| const fieldName = node.name.value; |
| const typeStr = (0, _inspect.inspect)(type); |
| context.reportError( |
| new _GraphQLError.GraphQLError( |
| `Field "${fieldName}" of type "${typeStr}" must have a selection of subfields. Did you mean "${fieldName} { ... }"?`, |
| { |
| nodes: node, |
| }, |
| ), |
| ); |
| } else if (selectionSet.selections.length === 0) { |
| const fieldName = node.name.value; |
| const typeStr = (0, _inspect.inspect)(type); |
| context.reportError( |
| new _GraphQLError.GraphQLError( |
| `Field "${fieldName}" of type "${typeStr}" must have at least one field selected.`, |
| { |
| nodes: node, |
| }, |
| ), |
| ); |
| } |
| } |
| }, |
| }; |
| } |