System.Xml.Xsl.IlGen.StorageDescriptor.Stack C# (CSharp) Method

        public static StorageDescriptor Stack(Type itemStorageType, bool isCached) {
            StorageDescriptor storage = new StorageDescriptor();
            storage.location = ItemLocation.Stack;
            storage.itemStorageType = itemStorageType;
            storage.isCached = isCached;
            return storage;
        }

        /// <summary>
        /// If the iterator has been fully cached, then iterate the values one-by-one.
        /// </summary>
        public void EnsureNoCache()
        {
            if (_storage.IsCached)
            {
                if (!HasLabelNext)
                {
                    // If no Next label, this must be a singleton cache
                    EnsureStack();
                    _helper.LoadInteger(0);
                    _helper.CallCacheItem(_storage.ItemStorageType);

                    _storage = StorageDescriptor.Stack(_storage.ItemStorageType, false);
                }
                else
                {
                    // int idx;
                    LocalBuilder locIdx = _helper.DeclareLocal("$$$idx", typeof(int));
                    Label        lblNext;

                    // Make sure cache is not on the stack
                    EnsureNoStack("$$$cache");

                    // idx = -1;
                    _helper.LoadInteger(-1);
                    _helper.Emit(OpCodes.Stloc, locIdx);

                    // LabelNext:
                    lblNext = _helper.DefineLabel();
                    _helper.MarkLabel(lblNext);

                    // idx++;
                    _helper.Emit(OpCodes.Ldloc, locIdx);
                    _helper.LoadInteger(1);
                    _helper.Emit(OpCodes.Add);
                    _helper.Emit(OpCodes.Stloc, locIdx);

                    // if (idx >= cache.Count) goto LabelNextCtxt;
                    _helper.Emit(OpCodes.Ldloc, locIdx);
                    CacheCount();
                    _helper.Emit(OpCodes.Bge, GetLabelNext());

                    // item = cache[idx];
                    PushValue();
                    _helper.Emit(OpCodes.Ldloc, locIdx);
                    _helper.CallCacheItem(_storage.ItemStorageType);

                    SetIterator(lblNext, StorageDescriptor.Stack(_storage.ItemStorageType, false));
                }
            }
        }