internal override Expression VisitConstant(ConstantExpression c)
        {
            object value = SchemaUtil.ConvertEdmType(c.Value);

            builder.Append(value);
            return(c);
        }
 public bool Visit(LiteralToken tokenIn)
 {
     stringBuilder.Append(SchemaUtil.ConvertEdmType(tokenIn.Value));
     return(true);
 }