      if (!1 === E(e)) throw new TypeError("WritableStreamDefaultWriter can only be constructed with a WritableStream instance");if (!0 === C(e)) throw new TypeError("This stream has already been locked for exclusive writing by another writer");this._ownerWritableStream = e, e._writer = this;const t = e._state;if ("writable" === t) !1 === O(e) && !0 === e._backpressure ? re(this) : ne(this), X(this);else if ("erroring" === t) oe(this, e._storedError), X(this);else if ("closed" === t) ne(this), function (e) {