protected internal override Expression VisitOrderBy(OrderByLinqExpression node)
{
var reducedSource = Visit(node.Source);
Visit(node.KeySelector);
SortDirection = node.SortDirection;
return(node.Reduce(reducedSource));
}
protected internal override Expression VisitOrderBy(OrderByLinqExpression node)
{
//Replace OrderBy1 -> OrderBy2 with a new instance of OrderBy2
return(MergeLambda(
node,
n => n.KeySelector,
(i, o) => o.Body,
(s, l) => new OrderByLinqExpression(node.Method, s, l, node.Comparer, node.SortDirection)
));
}
protected internal override Expression VisitOrderBy(OrderByLinqExpression node)
{
var source = Visit(node.Source);
if (source != node.Source)
{
return(new OrderByLinqExpression(node.Method, source, node.KeySelector, node.Comparer, node.SortDirection));
}
return(node);
}
/// <summary>
/// Visits the children of a <see cref="OrderByLinqExpression"/>.
/// </summary>
/// <param name="node">The expression to visit.</param>
/// <returns>If any children were modified, a new <see cref="OrderByLinqExpression"/>. Otherwise, the original expression.</returns>
protected internal virtual Expression VisitOrderBy(OrderByLinqExpression node)
{
var source = Visit(node.Source);
var keySelector = (LambdaExpression)Visit(node.KeySelector);
var comparer = Visit(node.Comparer);
if (source != node.Source || keySelector != node.KeySelector || comparer != node.Comparer)
{
return(new OrderByLinqExpression(node.Method, source, keySelector, comparer, node.SortDirection));
}
return(node);
}
