void IStack.AddOnTop(IStack stack)
{
if (stack == null)
{
throw new ArgumentNullException(nameof(stack));
}
BottomToTop.AddRange(stack.BottomToTop.Cast <Block>());
}
void IStack.AddToBottom(IStack stack)
{
if (stack == null)
{
throw new ArgumentNullException(nameof(stack));
}
if (BottomToTop.Count > 0)
{
BottomToTop.InsertRange(0, stack.BottomToTop.Cast <Block>());
}
else
{
BottomToTop.AddRange(stack.BottomToTop.Cast <Block>());
}
}