System.Uri.CreateThisFromUri C# (CSharp) Method

        private void CreateThisFromUri(Uri otherUri)
        {
            // Clone the other guy but develop own UriInfo member
            _info = null;

            _flags = otherUri._flags;
            if (InFact(Flags.MinimalUriInfoSet))
            {
                _flags &= ~(Flags.MinimalUriInfoSet | Flags.AllUriInfoSet | Flags.IndexMask);
                // Port / Path offset
                int portIndex = otherUri._info.Offset.Path;
                if (InFact(Flags.NotDefaultPort))
                {
                    // Find the start of the port.  Account for non-canonical ports like :00123
                    while (otherUri._string[portIndex] != ':' && portIndex > otherUri._info.Offset.Host)
                    {
                        portIndex--;
                    }
                    if (otherUri._string[portIndex] != ':')
                    {
                        // Something wrong with the NotDefaultPort flag.  Reset to path index
                        Debug.Assert(false, "Uri failed to locate custom port at index: " + portIndex);
                        portIndex = otherUri._info.Offset.Path;
                    }
                }
                _flags |= (Flags)portIndex; // Port or path
            }

            _syntax = otherUri._syntax;
            _string = otherUri._string;
            _iriParsing = otherUri._iriParsing;
            if (otherUri.OriginalStringSwitched)
            {
                _originalUnicodeString = otherUri._originalUnicodeString;
            }
            if (otherUri.AllowIdn && (otherUri.InFact(Flags.IdnHost) || otherUri.InFact(Flags.UnicodeHost)))
            {
                _dnsSafeHost = otherUri._dnsSafeHost;
            }
        }
    }