/// <summary>
/// 以名称获取字段,没有就返回nil
/// </summary>
/// <param name="name"></param>
/// <returns></returns>
public ScriptObject GetFileld(string filed)
{
Contract.Assert(Type == ValueType.TABLE);
TablePart tablePart = Value.RefPartHandle.ConverToTablePart();
ScriptObject s = tablePart.TryGetValue(filed);
if (s != null)
{
return(s);
}
ScriptObject metaTable = tablePart.MetaTable;
if (metaTable != null)
{
s = metaTable.GetFileld("_index");
if (s.Type == ValueType.TABLE)
{
return(s.GetFileld(filed));
}
else if (s.Type == ValueType.FUNCTION)
{
//多一次拷贝(实际上)
//RunEnvironment.Instance.LocalStack.InvokeFunction(s, this, ScriptObject.CreateString(filed));
StackState state = RunEnvironment.Instance.LocalStack;
state.PushFunction(s);
state.Push(this);
state.Push(filed);
return(state.InvokeFunction());
}
}
return(RunEnvironment.Nil);
}
public static ScriptObject GetThisValue()
{
StackState stack = RunEnvironment.Instance.LocalStack;
return(stack.This);
}
public static void SetThisValue(ScriptObject own)
{
StackState stack = RunEnvironment.Instance.LocalStack;
Instructor.AssignVar(stack.This, own);
}
public static void SetReturn(ScriptObject res)
{
StackState stack = RunEnvironment.Instance.LocalStack;
stack.SetReturn(res);
}
/// <summary>
/// 设置返回值为空
/// </summary>
public static void SetReturnVoid()
{
StackState stack = RunEnvironment.Instance.LocalStack;
stack.SetReturnVoid();
}
/// <summary>
/// 调用栈中的函数
/// </summary>
public static ScriptObject InvokeFuncInStack()
{
StackState stack = RunEnvironment.Instance.LocalStack;
return(stack.InvokeFunction());
}
/// <summary>
/// 函数参数压栈
/// </summary>
/// <param name="parameter"></param>
public static void PushParameter(ScriptObject parameter)
{
StackState stack = RunEnvironment.Instance.LocalStack;
stack.PushFuncParameter(parameter);
}
/// <summary>
/// 函数压栈
/// </summary>
/// <param name="func"></param>
/// <returns>返回栈中的位置下表</returns>
public static void PushFunction(ScriptObject func)
{
StackState stack = RunEnvironment.Instance.LocalStack;
stack.PushFunction(func);
}
/// <summary>
/// 将局部变量压栈
/// </summary>
/// <param name="obj"></param>
public static void StackPush(ScriptObject obj)
{
StackState stack = RunEnvironment.Instance.LocalStack;
stack.Push(obj);
}
public static void StackPop(int count)
{
StackState stack = RunEnvironment.Instance.LocalStack;
stack.Pop(count);
}