protected virtual Expression VisitOrderBy(SqlOrderByExpression orderByExpression)
{
var newExpression = this.Visit(orderByExpression.Expression);
if (newExpression != orderByExpression.Expression)
{
return(new SqlOrderByExpression(orderByExpression.OrderType, newExpression));
}
return(orderByExpression);
}
protected override Expression VisitOrderBy(SqlOrderByExpression orderByExpression)
{
if (orderByExpression == null)
{
return(null);
}
this.hashCode ^= (int)orderByExpression.OrderType;
this.Visit(orderByExpression.Expression);
return(base.VisitOrderBy(orderByExpression));
}
protected override Expression VisitOrderBy(SqlOrderByExpression orderByExpression)
{
base.VisitOrderBy(orderByExpression);
switch (orderByExpression.OrderType)
{
case OrderType.Ascending:
this.Write(" NULLS FIRST");
break;
default:
this.Write(" NULLS LAST");
break;
}
return orderByExpression;
}
protected override Expression VisitOrderBy(SqlOrderByExpression orderByExpression)
{
SqlOrderByExpression current;
if (!TryGetCurrent(orderByExpression, out current))
{
return(orderByExpression);
}
result = result && (current.OrderType == orderByExpression.OrderType);
if (result)
{
currentObject = current.Expression;
Visit(orderByExpression.Expression);
currentObject = current;
}
return(orderByExpression);
}
protected override Expression VisitOrderBy(SqlOrderByExpression orderByExpression)
{
SqlOrderByExpression current;
if (!this.TryGetCurrent(orderByExpression, out current))
{
return(orderByExpression);
}
this.result = this.result && (current.OrderType == orderByExpression.OrderType);
if (this.result)
{
this.currentObject = current.Expression;
this.Visit(orderByExpression.Expression);
this.currentObject = current;
}
return(orderByExpression);
}
protected override Expression VisitOrderBy(SqlOrderByExpression expression)
{
this.hashCode ^= expression.OrderType.GetHashCode();
return(base.VisitOrderBy(expression));
}
protected override Expression VisitOrderBy(SqlOrderByExpression expression)
{
this.hashCode ^= expression.OrderType.GetHashCode();
return base.VisitOrderBy(expression);
}
protected override Expression VisitOrderBy(SqlOrderByExpression expression)
{
SqlOrderByExpression current;
if (!TryGetCurrent(expression, out current))
{
return expression;
}
if (!(this.result &= current.OrderType == expression.OrderType))
{
return expression;
}
if (!(this.result &= current.NodeType == expression.NodeType))
{
return expression;
}
if (!(this.result &= current.Type == expression.Type))
{
return expression;
}
this.currentObject = current.Expression;
this.Visit(expression.Expression);
if (!this.result)
{
return expression;
}
this.currentObject = current;
return expression;
}
protected virtual Expression VisitOrderBy(SqlOrderByExpression orderByExpression)
{
var newExpression = this.Visit(orderByExpression.Expression);
if (newExpression != orderByExpression.Expression)
{
return new SqlOrderByExpression(orderByExpression.OrderType, newExpression);
}
return orderByExpression;
}
protected override Expression VisitOrderBy(SqlOrderByExpression orderByExpression)
{
base.VisitOrderBy(orderByExpression);
if (((SqlOrderByExpression)orderByExpression).OrderType == OrderType.Descending)
{
this.Write(" DESC");
}
return orderByExpression;
}
