internal void ClearTable()
{
Contract.Assert(Type == ValueType.TABLE);
TablePart table = Value.RefPartHandle.ConverToTablePart();
table.Clear();
}
/// <summary>
/// 获取字段,没有的话就产生一个nil
/// </summary>
/// <param name="filed"></param>
/// <returns></returns>
public ScriptObject GetOrCreateFileld(string filed)
{
Contract.Assert(Type == ValueType.TABLE);
TablePart table = Value.RefPartHandle.ConverToTablePart();
ScriptObject s = table.TryGetValue(filed);
if (s == null)
{
s = ScriptObject.CreateNil();
table.AddFileld(filed, s);
}
return(s);
}
internal ScriptObject GetOrCreateFileld(ScriptObject index)
{
Contract.Assert(Type == ValueType.TABLE);
TablePart table = Value.RefPartHandle.ConverToTablePart();
ScriptObject s = null;
switch (index.Type)
{
case ValueType.NUMBER:
int at = (int)index.Value.Number;
s = Value.RefPartHandle.ConverToTablePart().IndexAt(at);
if (s == null)
{
s = ScriptObject.CreateNil();
}
table.AddFileld(at, s);
break;
case ValueType.STRING:
string key = index.Value.RefPartHandle.ConverToStringPart().Value;
s = table.TryGetValue(key);
if (s == null)
{
s = ScriptObject.CreateNil();
}
table.AddFileld(key, s);
break;
default:
Contract.Assert(false);
break;
}
return(s);
}
/// <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);
}