graphql/jsutils/defineToJSON.mjs

A Query Language and Runtime which can target any service.

/**
 * Copyright (c) 2015-present, Facebook, Inc.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 *
 * 
 */
import nodejsCustomInspectSymbol from './nodejsCustomInspectSymbol';
/**
 * The `defineToJSON()` function defines toJSON() and inspect() prototype
 * methods, if no function provided they become aliases for toString().
 */

export default function defineToJSON( // eslint-disable-next-line flowtype/no-weak-types
classObject) {
  var fn = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : classObject.prototype.toString;
  classObject.prototype.toJSON = fn;
  classObject.prototype.inspect = fn;

  if (nodejsCustomInspectSymbol) {
    classObject.prototype[nodejsCustomInspectSymbol] = fn;
  }
}