Microsoft.Zing.Process.doPop C# (CSharp) Méthode

        private ZingMethod doPop()
        {
            if (stackULEs != null)
            {
                if (stackULEs.Count > 0 && stackULEs.Peek() is UndoPush)
                    stackULEs.Pop();
                else
                {
                    Debug.Assert(topOfStack == savedTopOfStack);
                    stackULEs.Push(new UndoPop(this, topOfStack));
                    savedTopOfStack = topOfStack.Caller;
                }
            }
            ZingMethod oldTop = topOfStack;
            topOfStack = topOfStack.Caller;
            return oldTop;
        }