text: /*
   * Copyright (C) 2019 Alexey Shvayka <shvaikalesh@gmail.com>.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions
   * are met:
   * 1. Redistributions of source code must retain the above copyright
   *    notice, this list of conditions and the following disclaimer.
   * 2. Redistributions in binary form must reproduce the above copyright
   *    notice, this list of conditions and the following disclaimer in the
   *    documentation and/or other materials provided with the distribution.
   *
   * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
   * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
   * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
   * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
   * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
   * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
   * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
   * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
   * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
   * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
   * THE POSSIBILITY OF SUCH DAMAGE.
   */
  
  function next()
  {
      "use strict";
  
      if (!@isObject(this))
          @throwTypeError("%RegExpStringIteratorPrototype%.next requires |this| to be an Object");
  
      var done = @getByIdDirectPrivate(this, "regExpStringIteratorDone");
      if (done === @undefined)
          @throwTypeError("%RegExpStringIteratorPrototype%.next requires |this| to be an RegExp String Iterator instance");
  
      if (done)
          return { value: @undefined, done: true };
  
      var regExp = @getByIdDirectPrivate(this, "regExpStringIteratorRegExp");
      var string = @getByIdDirectPrivate(this, "regExpStringIteratorString");
      var global = @getByIdDirectPrivate(this, "regExpStringIteratorGlobal");
      var fullUnicode = @getByIdDirectPrivate(this, "regExpStringIteratorUnicode");
      var match = @regExpExec(regExp, string);
      if (match === null) {
          @putByIdDirectPrivate(this, "regExpStringIteratorDone", true);
          return { value: @undefined, done: true };
      }
  
      if (global) {
          var matchStr = @toString(match[0]);
          if (matchStr === "") {
              var thisIndex = @toLength(regExp.lastIndex);
              regExp.lastIndex = @advanceStringIndex(string, thisIndex, fullUnicode);
          }
      } else
          @putByIdDirectPrivate(this, "regExpStringIteratorDone", true);
  
      return { value: match, done: false };
  }
  