protected override Expression VisitEntity(EntryExpression entity)
{
ScopedDictionary <MemberInfo, bool> save = includeScope;
includeScope = new ScopedDictionary <MemberInfo, bool>(includeScope);
try {
if (mapper.HasIncludedMembers(entity))
{
entity = mapper.IncludeMembers(entity, m => {
if (includeScope.ContainsKey(m))
{
return(false);
}
if (policy.IsIncluded(m))
{
includeScope.Add(m, true);
return(true);
}
return(false);
});
}
return(base.VisitEntity(entity));
}
finally {
includeScope = save;
}
}
protected EntryExpression UpdateEntity(EntryExpression entity, Expression expression)
{
if (expression != entity.Expression)
{
return(new EntryExpression(entity.Entry, expression));
}
return(entity);
}
protected override Expression VisitEntity(EntryExpression entity)
{
if (this.entity == null)
{
this.entity = entity.Entry;
}
return(entity);
}
protected virtual bool CompareEntity(EntryExpression x, EntryExpression y)
{
return(x.Entry == y.Entry && Compare(x.Expression, y.Expression));
}
protected virtual Expression VisitEntity(EntryExpression entity)
{
Expression exp = Visit(entity.Expression);
return(UpdateEntity(entity, exp));
}
/// <summary> /// </summary> /// <returns> </returns> public abstract bool HasIncludedMembers(EntryExpression entity);
/// <summary> /// Recreate the type projection with the additional members included /// </summary> /// <param name="entity"> </param> /// <param name="fnIsIncluded"> </param> /// <returns> </returns> public abstract EntryExpression IncludeMembers(EntryExpression entity, Func <MemberInfo, bool> fnIsIncluded);
protected override Expression VisitEntity(EntryExpression entity)
{
return(Visit(entity.Expression));
}
protected virtual Expression VisitEntity(EntryExpression entity)
{
Visit(entity.Expression);
return(entity);
}