text: "use strict";
  
  const conversions = require("webidl-conversions");
  const utils = require("./utils.js");
  const HTMLElement = require("./HTMLElement.js");
  const impl = utils.implSymbol;
  const mixin = utils.mixin;
  const WindowEventHandlers = require("./WindowEventHandlers.js");
  
  function HTMLFrameSetElement() {
    throw new TypeError("Illegal constructor");
  }
  HTMLFrameSetElement.prototype = Object.create(HTMLElement.interface.prototype);
  HTMLFrameSetElement.prototype.constructor = HTMLFrameSetElement;
  
  mixin(HTMLFrameSetElement.prototype, WindowEventHandlers.interface.prototype);
  WindowEventHandlers.mixedInto.push(HTMLFrameSetElement);
  
  HTMLFrameSetElement.prototype.toString = function () {
    if (this === HTMLFrameSetElement.prototype) {
      return "[object HTMLFrameSetElementPrototype]";
    }
    return HTMLElement.interface.prototype.toString.call(this);
  };
  Object.defineProperty(HTMLFrameSetElement.prototype, "cols", {
    get() {
      const value = this.getAttribute("cols");
      return value === null ? "" : value;
    },
    set(V) {
      V = conversions["DOMString"](V);
      this.setAttribute("cols", V);
    },
    enumerable: true,
    configurable: true
  });
  
  Object.defineProperty(HTMLFrameSetElement.prototype, "rows", {
    get() {
      const value = this.getAttribute("rows");
      return value === null ? "" : value;
    },
    set(V) {
      V = conversions["DOMString"](V);
      this.setAttribute("rows", V);
    },
    enumerable: true,
    configurable: true
  });
  
  
  const iface = {
    mixedInto: [],
    is(obj) {
      if (obj) {
        if (obj[impl] instanceof Impl.implementation) {
          return true;
        }
        for (let i = 0; i < module.exports.mixedInto.length; ++i) {
          if (obj instanceof module.exports.mixedInto[i]) {
            return true;
          }
        }
      }
      return false;
    },
    isImpl(obj) {
      if (obj) {
        if (obj instanceof Impl.implementation) {
          return true;
        }
  
        const wrapper = utils.wrapperForImpl(obj);
        for (let i = 0; i < module.exports.mixedInto.length; ++i) {
          if (wrapper instanceof module.exports.mixedInto[i]) {
            return true;
          }
        }
      }
      return false;
    },
    create(constructorArgs, privateData) {
      let obj = Object.create(HTMLFrameSetElement.prototype);
      this.setup(obj, constructorArgs, privateData);
      return obj;
    },
    createImpl(constructorArgs, privateData) {
      let obj = Object.create(HTMLFrameSetElement.prototype);
      this.setup(obj, constructorArgs, privateData);
      return utils.implForWrapper(obj);
    },
    _internalSetup(obj) {
      HTMLElement._internalSetup(obj);
  
    },
    setup(obj, constructorArgs, privateData) {
      if (!privateData) privateData = {};
      privateData.wrapper = obj;
  
      this._internalSetup(obj);
  
      obj[impl] = new Impl.implementation(constructorArgs, privateData);
      obj[impl][utils.wrapperSymbol] = obj;
    },
    interface: HTMLFrameSetElement,
    expose: {
      Window: { HTMLFrameSetElement: HTMLFrameSetElement }
    }
  };
  module.exports = iface;
  
  const Impl = require("../nodes/HTMLFrameSetElement-impl.js");
  