BTDB.EventStoreLayer.ListTypeDescriptor.GenerateLoad C# (CSharp) Метод

        public void GenerateLoad(IILGen ilGenerator, Action<IILGen> pushReader, Action<IILGen> pushCtx, Action<IILGen> pushDescriptor, Type targetType)
        {
            var localCount = ilGenerator.DeclareLocal(typeof(int));
            var targetIList = targetType.GetInterface("IList`1") ?? targetType;
            var targetTypeArguments = targetIList.GetGenericArguments();
            var itemType = _typeSerializers.LoadAsType(_itemDescriptor, targetTypeArguments[0]);
            var listType = typeof(ListWithDescriptor<>).MakeGenericType(itemType);
            if (!targetType.IsAssignableFrom(listType)) throw new NotSupportedException();
            var localList = ilGenerator.DeclareLocal(listType);
            var loadFinished = ilGenerator.DefineLabel();
            var next = ilGenerator.DefineLabel();
            ilGenerator
                .Do(pushReader)
                .Callvirt(() => default(AbstractBufferedReader).ReadVUInt32())
                .ConvI4()
                .Dup()
                .Stloc(localCount)
                .Brfalse(loadFinished)
                .Ldloc(localCount)
                .LdcI4(1)
                .Sub()
                .Dup()
                .Stloc(localCount)
                .Do(pushDescriptor)
                .Newobj(listType.GetConstructor(new[] { typeof(int), typeof(ITypeDescriptor) }))
                .Stloc(localList)
                .Mark(next)
                .Ldloc(localCount)
                .Brfalse(loadFinished)
                .Ldloc(localCount)
                .LdcI4(1)
                .Sub()
                .Stloc(localCount)
                .Ldloc(localList);
            _itemDescriptor.GenerateLoadEx(ilGenerator, pushReader, pushCtx, il => il.Do(pushDescriptor).LdcI4(0).Callvirt(() => default(ITypeDescriptor).NestedType(0)), itemType, _convertorGenerator);
            ilGenerator
                .Callvirt(listType.GetInterface("ICollection`1").GetMethod("Add"))
                .Br(next)
                .Mark(loadFinished)
                .Ldloc(localList)
                .Castclass(targetType);
        }