OpenTween.TweenMain.CreateCache C# (CSharp) Method

        private void CreateCache(int startIndex, int endIndex)
        {
            var tabInfo = this._statuses.Tabs[this._curTab.Text];

            if (tabInfo.AllCount == 0)
                return;

            // キャッシュ要求（要求範囲±30を作成）
            startIndex = Math.Max(startIndex - 30, 0);
            endIndex = Math.Min(endIndex + 30, tabInfo.AllCount - 1);

            var cacheLength = endIndex - startIndex + 1;

            var posts = tabInfo[startIndex, endIndex]; //配列で取得
            var listItems = Enumerable.Range(0, cacheLength)
                .Select(x => this.CreateItem(this._curTab, posts[x], startIndex + x))
                .ToArray();

            var listCache = new ListViewItemCache
            {
                TargetList = this._curList,
                StartIndex = startIndex,
                EndIndex = endIndex,
                Post = posts,
                ListItem = listItems,
            };

            Interlocked.Exchange(ref this._listItemCache, listCache);
        }