public void Evaluate(StoryInstance instance, object iterator, object[] args)
{
StackElementInfo stackInfo = NewStackElementInfo();
//调用实参部分需要在栈建立之前运算，结果需要记录在栈上
for (int i = 0; i < m_LoadedArgs.Count; ++i)
{
stackInfo.m_Args.Add(m_LoadedArgs[i].Clone());
}
for (int i = 0; i < stackInfo.m_Args.Count; i++)
{
stackInfo.m_Args[i].Evaluate(instance, iterator, args);
}
//实参处理完，进入函数体执行，创建新的栈
PushStack(instance, stackInfo);
try {
for (int i = 0; i < m_ArgNames.Count && i < stackInfo.m_Args.Count; ++i)
{
instance.SetVariable(m_ArgNames[i], stackInfo.m_Args[i].Value);
}
Prepare(stackInfo);
stackInfo.m_HaveValue = true;
for (int i = 0; i < stackInfo.m_Commands.Count; ++i)
{
//函数调用命令需要忽略其中的wait指令（从而不会出现“挂起-恢复”行为），所以这里传的delta值是一个很大的值，目的是为了让wait直接结束
stackInfo.m_Commands[i].Execute(instance, StoryValueHelper.c_MaxWaitCommandTime, iterator, args);
}
instance.TryGetVariable(m_ReturnName, out stackInfo.m_Value);
} finally {
PopStack(instance);
}
}
public void Evaluate(StoryInstance instance, StoryMessageHandler handler, BoxedValue iterator, BoxedValueList args)
{
var stackInfo = StoryLocalInfo.New();
var runtime = StoryRuntime.New();
//调用实参部分需要在栈建立之前运算，结果需要记录在栈上
for (int i = 0; i < m_LoadedArgs.Count; ++i)
{
stackInfo.Args.Add(m_LoadedArgs[i].Clone());
}
foreach (var pair in m_LoadedOptArgs)
{
stackInfo.OptArgs.Add(pair.Key, pair.Value.Clone());
}
runtime.Arguments = instance.NewBoxedValueList();
runtime.Arguments.Capacity = stackInfo.Args.Count;
for (int i = 0; i < stackInfo.Args.Count; i++)
{
stackInfo.Args[i].Evaluate(instance, handler, iterator, args);
runtime.Arguments.Add(stackInfo.Args[i].Value);
}
runtime.Iterator = stackInfo.Args.Count;
foreach (var pair in stackInfo.OptArgs)
{
pair.Value.Evaluate(instance, handler, iterator, args);
}
//实参处理完，进入函数体执行，创建新的栈
PushStack(instance, handler, stackInfo, runtime);
try {
for (int i = 0; i < m_ArgNames.Count; ++i)
{
if (i < stackInfo.Args.Count)
{
instance.SetVariable(m_ArgNames[i], stackInfo.Args[i].Value);
}
else
{
instance.SetVariable(m_ArgNames[i], BoxedValue.NullObject);
}
}
foreach (var pair in stackInfo.OptArgs)
{
instance.SetVariable(pair.Key, pair.Value.Value);
}
Prepare(runtime);
stackInfo.HaveValue = true;
runtime.Tick(instance, handler, long.MaxValue);
BoxedValue val;
instance.TryGetVariable(m_ReturnName, out val);
stackInfo.Value = val;
} finally {
instance.RecycleBoxedValueList(runtime.Arguments);
PopStack(instance, handler);
}
}