text: "use strict";
  
  const conversions = require("webidl-conversions");
  const utils = require("./utils.js");
  
  const convertDocumentType = require("./DocumentType.js").convert;
  const impl = utils.implSymbol;
  
  function DOMImplementation() {
    throw new TypeError("Illegal constructor");
  }
  
  Object.defineProperty(DOMImplementation, "prototype", {
    value: DOMImplementation.prototype,
    writable: false,
    enumerable: false,
    configurable: false
  });
  
  DOMImplementation.prototype.createDocumentType = function createDocumentType(qualifiedName, publicId, systemId) {
    if (!this || !module.exports.is(this)) {
      throw new TypeError("Illegal invocation");
    }
  
    if (arguments.length < 3) {
      throw new TypeError(
        "Failed to execute 'createDocumentType' on 'DOMImplementation': " +
          "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], {
      context: "Failed to execute 'createDocumentType' on 'DOMImplementation': parameter 1"
    });
  
    args[1] = conversions["DOMString"](args[1], {
      context: "Failed to execute 'createDocumentType' on 'DOMImplementation': parameter 2"
    });
  
    args[2] = conversions["DOMString"](args[2], {
      context: "Failed to execute 'createDocumentType' on 'DOMImplementation': parameter 3"
    });
  
    return utils.tryWrapperForImpl(this[impl].createDocumentType(...args));
  };
  
  DOMImplementation.prototype.createDocument = function createDocument(namespace, qualifiedName) {
    if (!this || !module.exports.is(this)) {
      throw new TypeError("Illegal invocation");
    }
  
    if (arguments.length < 2) {
      throw new TypeError(
        "Failed to execute 'createDocument' on 'DOMImplementation': " +
          "2 arguments required, but only " +
          arguments.length +
          " present."
      );
    }
  
    const args = [];
    for (let i = 0; i < arguments.length && i < 3; ++i) {
      args[i] = arguments[i];
    }
  
    if (args[0] === null || args[0] === undefined) {
      args[0] = null;
    } else {
      args[0] = conversions["DOMString"](args[0], {
        context: "Failed to execute 'createDocument' on 'DOMImplementation': parameter 1"
      });
    }
    args[1] = conversions["DOMString"](args[1], {
      context: "Failed to execute 'createDocument' on 'DOMImplementation': parameter 2",
      treatNullAsEmptyString: true
    });
  
    if (args[2] !== undefined) {
      if (args[2] === null || args[2] === undefined) {
        args[2] = null;
      } else {
        args[2] = convertDocumentType(args[2], {
          context: "Failed to execute 'createDocument' on 'DOMImplementation': parameter 3"
        });
      }
    } else {
      args[2] = null;
    }
  
    return utils.tryWrapperForImpl(this[impl].createDocument(...args));
  };
  
  DOMImplementation.prototype.createHTMLDocument = function createHTMLDocument() {
    if (!this || !module.exports.is(this)) {
      throw new TypeError("Illegal invocation");
    }
  
    const args = [];
    for (let i = 0; i < arguments.length && i < 1; ++i) {
      args[i] = arguments[i];
    }
  
    if (args[0] !== undefined) {
      args[0] = conversions["DOMString"](args[0], {
        context: "Failed to execute 'createHTMLDocument' on 'DOMImplementation': parameter 1"
      });
    }
    return utils.tryWrapperForImpl(this[impl].createHTMLDocument(...args));
  };
  
  DOMImplementation.prototype.hasFeature = function hasFeature() {
    if (!this || !module.exports.is(this)) {
      throw new TypeError("Illegal invocation");
    }
  
    return this[impl].hasFeature();
  };
  
  Object.defineProperty(DOMImplementation.prototype, Symbol.toStringTag, {
    value: "DOMImplementation",
    writable: false,
    enumerable: false,
    configurable: true
  });
  
  const iface = {
    // When an interface-module that implements this interface as a mixin is loaded, it will append its own `.is()`
    // method into this array. It allows objects that directly implements *those* interfaces to be recognized as
    // implementing this mixin interface.
    _mixedIntoPredicates: [],
    is(obj) {
      if (obj) {
        if (utils.hasOwn(obj, impl) && obj[impl] instanceof Impl.implementation) {
          return true;
        }
        for (const isMixedInto of module.exports._mixedIntoPredicates) {
          if (isMixedInto(obj)) {
            return true;
          }
        }
      }
      return false;
    },
    isImpl(obj) {
      if (obj) {
        if (obj instanceof Impl.implementation) {
          return true;
        }
  
        const wrapper = utils.wrapperForImpl(obj);
        for (const isMixedInto of module.exports._mixedIntoPredicates) {
          if (isMixedInto(wrapper)) {
            return true;
          }
        }
      }
      return false;
    },
    convert(obj, { context = "The provided value" } = {}) {
      if (module.exports.is(obj)) {
        return utils.implForWrapper(obj);
      }
      throw new TypeError(`${context} is not of type 'DOMImplementation'.`);
    },
  
    create(constructorArgs, privateData) {
      let obj = Object.create(DOMImplementation.prototype);
      obj = this.setup(obj, constructorArgs, privateData);
      return obj;
    },
    createImpl(constructorArgs, privateData) {
      let obj = Object.create(DOMImplementation.prototype);
      obj = this.setup(obj, constructorArgs, privateData);
      return utils.implForWrapper(obj);
    },
    _internalSetup(obj) {},
    setup(obj, constructorArgs, privateData) {
      if (!privateData) privateData = {};
  
      privateData.wrapper = obj;
  
      this._internalSetup(obj);
      Object.defineProperty(obj, impl, {
        value: new Impl.implementation(constructorArgs, privateData),
        writable: false,
        enumerable: false,
        configurable: true
      });
  
      obj[impl][utils.wrapperSymbol] = obj;
      if (Impl.init) {
        Impl.init(obj[impl], privateData);
      }
      return obj;
    },
    interface: DOMImplementation,
    expose: {
      Window: { DOMImplementation }
    }
  }; // iface
  module.exports = iface;
  
  const Impl = require("../nodes/DOMImplementation-impl.js");
  