protected void WriteLine(ExpressionWriter.Indentation style)
        {
            this.writer.WriteLine();
            this.Indent(style);
            int i = 0;
            int n = this.depth * this.IndentationWidth;

            while (i < n)
            {
                this.writer.Write(" ");
                i++;
            }
        }
 protected void Indent(ExpressionWriter.Indentation style)
 {
     if (style == ExpressionWriter.Indentation.Inner)
     {
         ExpressionWriter expressionWriter = this;
         expressionWriter.depth = expressionWriter.depth + 1;
     }
     else if (style == ExpressionWriter.Indentation.Outer)
     {
         ExpressionWriter expressionWriter1 = this;
         expressionWriter1.depth = expressionWriter1.depth - 1;
         Debug.Assert(this.depth >= 0);
     }
 }