| import { GraphQLError } from '../../error/GraphQLError.mjs'; |
| import { print } from '../../language/printer.mjs'; |
| import { isInputType } from '../../type/definition.mjs'; |
| import { typeFromAST } from '../../utilities/typeFromAST.mjs'; |
| |
| /** |
| * Variables are input types |
| * |
| * A GraphQL operation is only valid if all the variables it defines are of |
| * input types (scalar, enum, or input object). |
| * |
| * See https://spec.graphql.org/draft/#sec-Variables-Are-Input-Types |
| */ |
| export function VariablesAreInputTypesRule(context) { |
| return { |
| VariableDefinition(node) { |
| const type = typeFromAST(context.getSchema(), node.type); |
| |
| if (type !== undefined && !isInputType(type)) { |
| const variableName = node.variable.name.value; |
| const typeName = print(node.type); |
| context.reportError( |
| new GraphQLError( |
| `Variable "$${variableName}" cannot be non-input type "${typeName}".`, |
| { |
| nodes: node.type, |
| }, |
| ), |
| ); |
| } |
| }, |
| }; |
| } |