graphql/error/syntaxError.d.ts

import { Source } from '../language/source';
import { GraphQLError } from './GraphQLError';

/**
 * Produces a GraphQLError representing a syntax error, containing useful
 * descriptive information about the syntax error's position in the source.
 */
export function syntaxError(
  source: Source,
  position: number,
  description: string,
): GraphQLError;