System.Xml.BufferBuilder.BufferBuilder.ToString C# (CSharp) Méthode

        public override string ToString() {
            string returnString;
            if ( ( length <= MaxStringBuilderLength ) || ( buffersCount == 1 && lastBufferIndex == 0 ) ) {
                returnString = ( stringBuilder != null ) ? stringBuilder.ToString() : string.Empty;
            }
            else {
                if ( stringBuilder == null ) {
                    stringBuilder = new StringBuilder( length );
                }
                else {
                    stringBuilder.Capacity = length;
                }
                int charsLeft = length - stringBuilder.Length;
                for ( int i = 0; i < buffersCount - 1; i++ ) { 
                    char[] buf = buffers[i].buffer;
                    stringBuilder.Append( buf, 0, buf.Length );
                    charsLeft -= buf.Length;
                }
                stringBuilder.Append( buffers[buffersCount-1].buffer, 0, charsLeft );
                ClearBuffers();
                returnString = stringBuilder.ToString();
            }
#if BUFFER_BUILDER_TRACING
            if ( s_TraceOutput != null ) {
                s_TraceOutput.WriteLine( "BufferBuilder.ToString() Length == " + returnString.Length + "\t \"" + returnString + "\"" );
                toStringCount++;
                totalLength += returnString.Length;
                if ( minLength > returnString.Length ) {
                    minLength = returnString.Length;
                }
                if ( maxLength < returnString.Length ) {
                    maxLength = returnString.Length;
                }
            }
#endif
            return returnString;
        }