protected StackFrameFunction(StackFrameFunction that)
{
_pc = that._pc;
#if DEBUG
_metaFunctionCalledTimes = that._metaFunctionCalledTimes;
#endif
}
/// <summary>
/// 调用下一个函数（必须也是 StackFrameFunction），并步进 PC
/// </summary>
/// <param name="func">调用的参数</param>
/// <returns></returns>
protected FuncInstructionBase CallStackFunc(StackFrameFunction func)
{
++_pc;
#if DEBUG
CheckMetaFunctionCalledTimes();
#endif
return(new CallFuncInstruction(func));
}
/// <summary>
/// 在虚拟机上运行函数，并返回结果。此操作将清空当前的调用栈。
/// </summary>
/// <param name="func"></param>
/// <returns></returns>
public object Run(StackFrameFunction func)
{
_callingStack.Clear();
_callingStack.Push(func);
StartStepping();
return(((StackFrameResult)_callingStack.Pop()).Result);
}
private void PushStack(StackFrameFunction func)
{
_callingStack.Push(func);
}
