"use strict"; let Base = function Base() { babelHelpers.classCallCheck(this, Base); }; Object.defineProperty(Base.prototype, 0, { value: 0, writable: true, configurable: true }); Object.defineProperty(Base.prototype, 1, { value: 1, writable: true, configurable: true }); let i = 0; const proper = { get prop() { return i++; } }; let Obj = /*#__PURE__*/function (_Base) { babelHelpers.inherits(Obj, _Base); var _super = babelHelpers.createSuper(Obj); function Obj() { babelHelpers.classCallCheck(this, Obj); return _super.apply(this, arguments); } babelHelpers.createClass(Obj, [{ key: "assign", value: function assign() { var _proper$prop; babelHelpers.set(babelHelpers.getPrototypeOf(Obj.prototype), _proper$prop = proper.prop, babelHelpers.get(babelHelpers.getPrototypeOf(Obj.prototype), _proper$prop, this) + 1, this, true); } }, { key: "assign2", value: function assign2() { var _i; babelHelpers.set(babelHelpers.getPrototypeOf(Obj.prototype), _i = i, babelHelpers.get(babelHelpers.getPrototypeOf(Obj.prototype), _i, this) + 1, this, true); } }]); return Obj; }(Base); const obj = new Obj(); obj.assign(); expect(i).toBe(1); expect(obj[0]).toBe(1); expect(obj[1]).toBe(1); obj.assign2(); expect(i).toBe(1); expect(obj[0]).toBe(1); expect(obj[1]).toBe(2);