internal static Remotion.Linq.Clauses.FromClauseBase TransformFromExpression(this IQueryVisitor visitor, Remotion.Linq.Clauses.FromClauseBase sourceExpression)
{
Remotion.Linq.Clauses.FromClauseBase result = sourceExpression;
System.Linq.Expressions.Expression expression = visitor.TransformUnaryExpression(sourceExpression.FromExpression);
if (expression != sourceExpression.FromExpression)
{
object item;
if (!TransformedExpressionsCache.TryGetValue(sourceExpression, out item))
{
TransformedExpressionsCache[sourceExpression] = result =
new AdditionalFromClause(sourceExpression.ItemName, sourceExpression.ItemType, (System.Linq.Expressions.MemberExpression)expression);
}
else
{
result = (AdditionalFromClause)item;
}
}
return(result);
}
