set.js #1

"use strict";

exports.__esModule = true;

var _getPrototypeOf = require("../core-js/object/get-prototype-of");

var _getPrototypeOf2 = _interopRequireDefault(_getPrototypeOf);

var _getOwnPropertyDescriptor = require("../core-js/object/get-own-property-descriptor");

var _getOwnPropertyDescriptor2 = _interopRequireDefault(_getOwnPropertyDescriptor);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

exports.default = function set(object, property, value, receiver) {
  var desc = (0, _getOwnPropertyDescriptor2.default)(object, property);

  if (desc === undefined) {
    var parent = (0, _getPrototypeOf2.default)(object);

    if (parent !== null) {
      set(parent, property, value, receiver);
    }
  } else if ("value" in desc && desc.writable) {
    desc.value = value;
  } else {
    var setter = desc.set;

    if (setter !== undefined) {
      setter.call(receiver, value);
    }
  }

  return value;
};