text: "use strict";
  
  const conversions = require("webidl-conversions");
  const utils = require("./utils.js");
  const Impl = require("../events/Event-impl.js");
  
  const impl = utils.implSymbol;
  const convertEventInit = require("./EventInit").convert;
  
  function Event(type) {
    if (!this || this[impl] || !(this instanceof Event)) {
      throw new TypeError("Failed to construct 'Event': Please use the 'new' operator, this DOM object constructor cannot be called as a function.");
    }
    if (arguments.length < 1) {
      throw new TypeError("Failed to construct 'Event': 1 argument required, but only " + arguments.length + " present.");
    }
    const args = [];
    for (let i = 0; i < arguments.length && i < 2; ++i) {
      args[i] = arguments[i];
    }
    args[0] = conversions["DOMString"](args[0]);
    args[1] = convertEventInit(args[1]);
  
    module.exports.setup(this, args);
  }
  
  Event.prototype.stopPropagation = function stopPropagation() {
    if (!this || !module.exports.is(this)) {
      throw new TypeError("Illegal invocation");
    }
    const args = [];
    for (let i = 0; i < arguments.length && i < 0; ++i) {
      args[i] = arguments[i];
    }
    return this[impl].stopPropagation.apply(this[impl], args);
  };
  
  Event.prototype.stopImmediatePropagation = function stopImmediatePropagation() {
    if (!this || !module.exports.is(this)) {
      throw new TypeError("Illegal invocation");
    }
    const args = [];
    for (let i = 0; i < arguments.length && i < 0; ++i) {
      args[i] = arguments[i];
    }
    return this[impl].stopImmediatePropagation.apply(this[impl], args);
  };
  
  Event.prototype.preventDefault = function preventDefault() {
    if (!this || !module.exports.is(this)) {
      throw new TypeError("Illegal invocation");
    }
    const args = [];
    for (let i = 0; i < arguments.length && i < 0; ++i) {
      args[i] = arguments[i];
    }
    return this[impl].preventDefault.apply(this[impl], args);
  };
  
  Event.prototype.initEvent = function initEvent(type, bubbles, cancelable) {
    if (!this || !module.exports.is(this)) {
      throw new TypeError("Illegal invocation");
    }
    if (arguments.length < 3) {
      throw new TypeError("Failed to execute 'initEvent' on 'Event': 3 arguments required, but only " + arguments.length + " present.");
    }
    const args = [];
    for (let i = 0; i < arguments.length && i < 3; ++i) {
      args[i] = arguments[i];
    }
    args[0] = conversions["DOMString"](args[0]);
    args[1] = conversions["boolean"](args[1]);
    args[2] = conversions["boolean"](args[2]);
    return this[impl].initEvent.apply(this[impl], args);
  };
  Object.defineProperty(Event.prototype, "type", {
    get() {
      return this[impl].type;
    },
    enumerable: true,
    configurable: true
  });
  
  Object.defineProperty(Event.prototype, "target", {
    get() {
      return this[impl].target;
    },
    enumerable: true,
    configurable: true
  });
  
  Object.defineProperty(Event.prototype, "currentTarget", {
    get() {
      return this[impl].currentTarget;
    },
    enumerable: true,
    configurable: true
  });
  
  Object.defineProperty(Event, "NONE", {
    value: 0,
    enumerable: true
  });
  Object.defineProperty(Event.prototype, "NONE", {
    value: 0,
    enumerable: true
  });
  
  Object.defineProperty(Event, "CAPTURING_PHASE", {
    value: 1,
    enumerable: true
  });
  Object.defineProperty(Event.prototype, "CAPTURING_PHASE", {
    value: 1,
    enumerable: true
  });
  
  Object.defineProperty(Event, "AT_TARGET", {
    value: 2,
    enumerable: true
  });
  Object.defineProperty(Event.prototype, "AT_TARGET", {
    value: 2,
    enumerable: true
  });
  
  Object.defineProperty(Event, "BUBBLING_PHASE", {
    value: 3,
    enumerable: true
  });
  Object.defineProperty(Event.prototype, "BUBBLING_PHASE", {
    value: 3,
    enumerable: true
  });
  
  Object.defineProperty(Event.prototype, "eventPhase", {
    get() {
      return this[impl].eventPhase;
    },
    enumerable: true,
    configurable: true
  });
  
  Object.defineProperty(Event.prototype, "bubbles", {
    get() {
      return this[impl].bubbles;
    },
    enumerable: true,
    configurable: true
  });
  
  Object.defineProperty(Event.prototype, "cancelable", {
    get() {
      return this[impl].cancelable;
    },
    enumerable: true,
    configurable: true
  });
  
  Object.defineProperty(Event.prototype, "defaultPrevented", {
    get() {
      return this[impl].defaultPrevented;
    },
    enumerable: true,
    configurable: true
  });
  
  Object.defineProperty(Event.prototype, "timeStamp", {
    get() {
      return this[impl].timeStamp;
    },
    enumerable: true,
    configurable: true
  });
  
  
  module.exports = {
    is(obj) {
      return !!obj && obj[impl] instanceof Impl.implementation;
    },
    create(constructorArgs, privateData) {
      let obj = Object.create(Event.prototype);
      this.setup(obj, constructorArgs, privateData);
      return obj;
    },
    setup(obj, constructorArgs, privateData) {
      if (!privateData) privateData = {};
      privateData.wrapper = obj;
  
      Object.defineProperty(obj, "isTrusted", {
        get() {
          return obj[impl].isTrusted;
        },
        enumerable: true,
        configurable: false
      });
      
      
      obj[impl] = new Impl.implementation(constructorArgs, privateData);
      obj[impl][utils.wrapperSymbol] = obj;
    },
    interface: Event,
    expose: {
      Window: { Event: Event },
      Worker: { Event: Event }
    }
  };
  
  