protected override IExpression VisitNullary(INullaryExpression nullaryExpression)
{
DescriptionAttribute descriptionAttribute;
FieldInfo fieldInfo;
if ((object)nullaryExpression == null)
throw new ArgumentNullException("nullaryExpression");
fieldInfo = typeof(NullaryOperator).GetField(nullaryExpression.NullaryOperator.ToString());
if ((object)fieldInfo == null)
throw new NotSupportedException(string.Format("The nullary operator '{0}' is not supported.", nullaryExpression.NullaryOperator));
descriptionAttribute = Reflexion.GetOneAttribute<DescriptionAttribute>(fieldInfo);
if ((object)descriptionAttribute == null)
throw new NotSupportedException(string.Format("The nullary operator '{0}' is not described.", nullaryExpression.NullaryOperator));
this.Strings.Append(descriptionAttribute.Description);
return nullaryExpression;
}
protected abstract IExpression VisitNullary(INullaryExpression nullaryExpression);
protected override IExpression VisitNullary(INullaryExpression nullaryExpression)
{
if ((object)nullaryExpression == null)
throw new ArgumentNullException("nullaryExpression");
this.Strings.Append(" (1 = 1) ");
return nullaryExpression;
}