/// <summary>
/// The extension method that adds a select as a last extension method and hydrates the result through proxy.
/// </summary>
/// <typeparam name="TSource">Type of the source object from the <paramref name="source"/>.</typeparam>
/// <typeparam name="TResult">The type that <paramref name="selectExpression"/> transforms the <paramref name="source"/> into.</typeparam>
public static List <TResult> ProjectToList <TSource, TResult>(this IQueryable <TSource> source, Expression <Func <TSource, TResult> > selectExpression, MediatorMapper mediatorMapper)
{
var selectSourceToTarget = selectExpression;
// TODO: Caching
var targetToMediatorVisitor = new TargetToMediatorVisitor(mediatorMapper);
var sourceToMediatorSelect = targetToMediatorVisitor.Visit(selectSourceToTarget);
var targetRootType = typeof(TResult);
var mediatorRootType = mediatorMapper.GetMediatorType(targetRootType);
var mediatorList = SelectToList(source, sourceToMediatorSelect, mediatorRootType);
var mediatorToTargetVisitor = new MediatorToTargetVisitor(mediatorMapper);
object mediatorToTargetSelect = mediatorToTargetVisitor.Visit(selectSourceToTarget);
object mediatorToTargetFunc = MethodHelper.GetCompile(mediatorRootType, targetRootType)
.Invoke(mediatorToTargetSelect, Array.Empty <object>());
var genericEnumerableSelect = MethodHelper.GetEnumerableSelect(mediatorRootType, targetRootType);
var targetEnumerable = (IEnumerable <TResult>)genericEnumerableSelect.Invoke(null, new object[] { mediatorList, mediatorToTargetFunc });
var targetList = targetEnumerable.ToList();
return(targetList);
}
public TargetToMediatorVisitor(MediatorMapper mapper)
{
_mapper = mapper;
}
public MediatorToTargetVisitor(MediatorMapper mapper)
{
_mapper = mapper;
}
