protected override Expression VisitConstant(ConstantExpression c)
{
if (this.IsQuery(c))
{
IQueryable q = (IQueryable)c.Value;
ITable t = q as ITable;
if (t != null)
{
MetaType entity = this.mapping.GetMetaType(t.ElementType, t.EntityID, t.EntityType);
return(this.VisitSequence(this.mapping.CreateProjection(entity)));
}
else
{
return(RedundantSubqueryRemover.Remove(this.Visit(q.Expression)));
}
}
return(c);
}
public static Expression Remove(Expression expression)
{
expression = new RedundantSubqueryRemover().Visit(expression);
expression = SubqueryMerger.Merge(expression);
return expression;
}
public static Expression Remove(Expression expression)
{
expression = new RedundantSubqueryRemover().Visit(expression);
expression = SubqueryMerger.Merge(expression);
return(expression);
}
