protected virtual Expression VisitDirectorySearcher(DirectorySearcherExpression node)
{
return(node.Update(
Visit(node.Filter),
node.AttributesToLoad,
(LdapSortExpression)Visit(node.Sort),
Visit(node.Skip),
Visit(node.Take)
));
}
public ProjectionExpression Update(DirectorySearcherExpression searcher, Expression projector, LambdaExpression aggregator)
{
if (
searcher == this.Searcher &&
projector == this.Projector &&
aggregator == this.Aggregator
)
{
return(this);
}
return(new ProjectionExpression(searcher, projector, aggregator));
}
protected override Expression VisitDirectorySearcher(DirectorySearcherExpression node)
{
Expression result = base.VisitDirectorySearcher(node);
if (result.NodeType != node.NodeType)
{
return(result);
}
node = (DirectorySearcherExpression)result;
if (node.Filter.IsConstant(true))
{
return(node.Update(null));
}
if (node.Filter.IsConstant(false))
{
return(null);
}
return(node);
}
public ProjectionExpression Update(DirectorySearcherExpression searcher)
{
return(this.Update(searcher, this.Projector, this.Aggregator));
}
public ProjectionExpression(DirectorySearcherExpression searcher, Expression projector, LambdaExpression aggregator)
{
this._searcher = searcher;
this._projector = projector;
this._aggregator = aggregator;
}