yup/es/Lazy.js

import isSchema from './util/isSchema';

var Lazy = /*#__PURE__*/function () {
  function Lazy(mapFn) {
    this._resolve = function (value, options) {
      var schema = mapFn(value, options);
      if (!isSchema(schema)) throw new TypeError('lazy() functions must return a valid schema');
      return schema.resolve(options);
    };
  }

  var _proto = Lazy.prototype;

  _proto.resolve = function resolve(options) {
    return this._resolve(options.value, options);
  };

  _proto.cast = function cast(value, options) {
    return this._resolve(value, options).cast(value, options);
  };

  _proto.validate = function validate(value, options, maybeCb) {
    return this._resolve(value, options).validate(value, options, maybeCb);
  };

  _proto.validateSync = function validateSync(value, options) {
    return this._resolve(value, options).validateSync(value, options);
  };

  _proto.validateAt = function validateAt(path, value, options) {
    return this._resolve(value, options).validateAt(path, value, options);
  };

  _proto.validateSyncAt = function validateSyncAt(path, value, options) {
    return this._resolve(value, options).validateSyncAt(path, value, options);
  };

  return Lazy;
}();

Lazy.prototype.__isYupSchema__ = true;
export default Lazy;