public No31_DefineApiConbinableSequence()
        {
            //目的:
            //①遅延実行で組み合わせたクエリを1度のみ操作できる

            //概要:
            //--------------------------------------------------------------------------------------
            //イテレータメソッド(yield return)を実装することで、
            //再利用可能な遅延実行メソッドを実装できる

            //利用時
            var nums = new List <int>()
            {
                1, 1, 2, 3, 3, 4, 5, 6, 7, 8
            };
            var list = new List <string>()
            {
                "a", "b", "a", "d", "c", "d", "j", "i", "d", "j",
            };

            //NG
            //処理が1つに内包されていて、再利用不可能
            ProduceMethod.UniqueWrite(nums);

            //OK
            //イテレータメソッドとすることで再利用可能に
            IteratorMethod.UniqueWrite(nums);

            //さらにジェネリクスにすることで再利用可能に
            var res = IteratorMethod.Unique(list);
        }
Ejemplo n.º 2
0
        private void DoApply(IteratorMethod method, int i, IActor actor)
        {
            CollectionBehaviors <T> linkedBehavior = LinkedTo as CollectionBehaviors <T>;

            switch (method)
            {
            case IteratorMethod.MoveNext:
            {
                if ((i < linkedBehavior.List.Count) && (i >= 0))
                {
                    actor.SendMessage(IteratorMethod.OkMoveNext, true);
                }
                else
                {
                    actor.SendMessage(IteratorMethod.OkMoveNext, false);
                }
                break;
            }

            case IteratorMethod.Current:
            {
                if ((i >= 0) && (i < linkedBehavior.List.Count))
                {
                    actor.SendMessage(IteratorMethod.OkCurrent, linkedBehavior.List[i]);
                }
                else
                {
                    Debug.WriteLine("Bad current");
                }
                break;
            }

            default: throw new ActorException(string.Format(CultureInfo.InvariantCulture, "Bad IteratorMethod call {0}", method));
            }
        }
Ejemplo n.º 3
0
        public static void ForEach <TIn, TOut>(
            IteratorMethod <TIn, TOut> iteratorMethod,
            Action <TIn, Action <TOut> > forEach)
        {
            IEnumerator <TIn> enumerator = null;

            try
            {
                enumerator = new YieldEnumerable <TIn, TOut>(iteratorMethod).GetEnumerator();
                var enumerator2 = (YieldEnumerator <TIn, TOut>)enumerator;
                while (enumerator.MoveNext())
                {
                    try
                    {
                        forEach(enumerator2.Current, enumerator2.Return);
                    }
                    catch (Exception x) // Oh the humanity!
                    {
                        enumerator2.Throw(x);
                    }
                }
            }
            finally
            {
                enumerator?.Dispose();
            }
        }
Ejemplo n.º 4
0
 public TimeProfiler(IteratorMethod method)
 {
     if (method == IteratorMethod.foreachNonLazyCoding)
     {
         profile_foreachNonLazyCoding();
     }
     if (method == IteratorMethod.foreachLazyCoding)
     {
         profile_foreachLazyCoding();
     }
     if (method == IteratorMethod.forLoopCoding)
     {
         profile_forLoopCoding();
     }
 }
Ejemplo n.º 5
0
        /// <summary>Iterate through all Entities in this EntityContainer.</summary>
        /// <remarks>This method can modify objects during iteration!
        /// If this functionality is undesired, iterate then through this
        /// EntityContainer using a 'foreach'-loop (from IEnumerable).</remarks>
        public void Iterate(IteratorMethod iterator)
        {
            var count   = entities.Count;
            var newList = new List <Entity>(count);

            // iterate through entities
            for (int i = 0; i < count; i++)
            {
                iterator(entities[i]);
            }

            // keep Entities that have not been marked for deletion during iteration
            foreach (var entity in entities)
            {
                if (!entity.IsDeleted())
                {
                    newList.Add(entity);
                }
            }
            entities = newList;
        }
Ejemplo n.º 6
0
 public YieldEnumerator(IteratorMethod <TItem, TResult> iteratorMethod)
 {
     _task = iteratorMethod(this);
 }
Ejemplo n.º 7
0
 public YieldEnumerable(IteratorMethod <TItem, TResult> iteratorMethod)
 {
     _iteratorMethod = iteratorMethod;
 }