// Metro module 89 (f90).
import _classCallCheck from "./_classCallCheck";
import _createClass from "./_createClass";
import _classPrivateFieldBase from "./_classPrivateFieldBase";
import _classPrivateFieldKey from "./_classPrivateFieldKey";
let env91 = {};
const c91_2 = _classPrivateFieldKey("registry");
const EventEmitter = function EventEmitter() {
  _classCallCheck(this, EventEmitter);
  const r6 = Object;
  r6.defineProperty(this, c91_2, {
    writable: true,
    value: void 0
  });
  _classPrivateFieldBase(this, c91_2)[c91_2] = {};
};
export default _createClass(EventEmitter, [{
  key: "addListener",
  value: function addListener(a0, a1, a2) {
    if (typeof a1 !== "function") {
      throw new TypeError("EventEmitter.addListener(...): 2nd argument must be a function.");
    }
    const r12 = _classPrivateFieldBase(this, c91_2)[c91_2];
    let r13 = r12[a0];
    if (r13 == null) {
      const set = new Set();
      r12[a0] = set;
      r13 = set;
    }
    let c23567_1;
    let c23567_0 = r13;
    const r22 = {
      context: a2,
      listener: a1,
      remove: () => {
        c23567_0.delete(c23567_1);
      }
    };
    c23567_1 = r22;
    r13.add(r22);
    return r22;
  }
}, {
  key: "emit",
  value: function emit(a0, ...args) {
    const r23 = _classPrivateFieldBase(this, c91_2)[c91_2][a0];
    if (r23 != null) {
      for (const item of Array.from(r23)) {
        item.listener.apply(item.context, args);
      }
    }
  }
}, {
  key: "removeAllListeners",
  value: function removeAllListeners(a0) {
    if (a0 == null) {
      _classPrivateFieldBase(this, c91_2)[c91_2] = {};
    } else {
      delete _classPrivateFieldBase(this, c91_2)[c91_2][a0];
    }
  }
}, {
  key: "listenerCount",
  value: function listenerCount(a0) {
    const r8 = _classPrivateFieldBase(this, c91_2)[c91_2][a0];
    return r8 == null ? 0 : r8.size;
  }
}]);