import { mergeFns } from "../../_internal/utils.mjs";
import { Readable } from "./readable.mjs";
import { Writable } from "./writable.mjs";
const __Duplex = class {
  allowHalfOpen = true;
  _destroy;
  constructor(readable = new Readable(), writable = new Writable()) {
    Object.assign(this, readable);
    Object.assign(this, writable);
    this._destroy = mergeFns(readable._destroy, writable._destroy);
  }
};
function getDuplex() {
  Object.assign(__Duplex.prototype, Readable.prototype);
  Object.assign(__Duplex.prototype, Writable.prototype);
  return __Duplex;
}
export const _Duplex = /* @__PURE__ */ getDuplex();
export const Duplex = globalThis.Duplex || _Duplex;