//protected override Expression VisitParameter(ParameterExpression p)
//{
// if (p.Type.IsGenericType && p.Type.GetGenericTypeDefinition() == typeof(IGrouping<,>))
// _isBlocked = true;
// return base.VisitParameter(p);
//}
private static bool IsCollection(Type type)
{
//HACK: this is going to generally subvert custom objects that implement ICollection or ICollection<T>,
//but are not collections
if (type.IsGenericType)
{
type = type.GetGenericTypeDefinition();
}
return(CollectionTypes.Any(x => x.IsAssignableFrom(type)));
}
private CloneDelegate <TEntity> AssembleExpression <TEntity>(IExpressionBuilder expressionBuilder)
where TEntity : class
{
CloneExpressionContext context = new CloneExpressionContext
{
SourceEntity = expressionBuilder.AddParameter <TEntity>(nameof(CloneExpressionContext.SourceEntity)),
CloneFactory = expressionBuilder.AddParameter <ICloneFactory>(nameof(CloneExpressionContext.CloneFactory)),
};
if (CollectionTypes.Any(collectionType => IsCollectionType(collectionType, typeof(TEntity))))
{
AddCollectionExpressions <TEntity>(expressionBuilder, context);
}
else
{
AddCloneExpressions <TEntity>(expressionBuilder, context);
}
expressionBuilder.ReturnObject(context.TargetEntity);
return(expressionBuilder.Build <CloneDelegate <TEntity> >());
}