public static bool PushObjFromCache(IntPtr l, object obj)
{
if (LuaObjCacheSlim.TryPush(l, obj))
{
return(true);
}
var cache = GetObjCache(l);
if (cache != null)
{
IntPtr h;
if (cache._Map.TryGetValue(obj, out h))
{
l.checkstack(5);
PushObjCacheReg(l); // reg
if (!l.istable(-1))
{
l.pop(1);
return(false);
}
l.pushlightuserdata(h); // reg h
l.gettable(-2); // reg ud
if (l.isnoneornil(-1))
{
l.pop(2); // X
return(false);
}
l.remove(-2); // ud
return(true);
}
}
return(false);
}
internal static void RegObj(IntPtr l, object obj, int index, IntPtr h)
{
var pos = l.NormalizeIndex(index);
if (obj != null)
{
LuaObjCacheSlim.Record(obj, l.topointer(pos), pos);
}
var cache = GetOrCreateObjCache(l);
cache._Map[obj] = h;
l.checkstack(5);
PushOrCreateObjCacheReg(l); // reg
l.pushlightuserdata(h); // reg h
l.pushvalue(pos); // reg h ud
l.settable(-3); // reg
l.pop(1); // X
}
public static object GetLuaTableObjectDirect(this IntPtr l, int index)
{
var pos = l.NormalizeIndex(index);
object rv;
if (LuaObjCacheSlim.TryGet(l, pos, out rv))
{
return(rv);
}
l.checkstack(2);
l.pushlightuserdata(LuaConst.LRKEY_TARGET); // #tar
l.rawget(pos); // obj
if (l.IsUserData(-1))
{
rv = l.GetLuaRawObject(-1);
}
l.pop(1);
if (rv != null)
{
LuaObjCacheSlim.Record(rv, l.topointer(pos), pos);
}
return(rv);
}
private static object GetLuaTableObject(this IntPtr l, int index, out bool isUserData)
{
var pos = l.NormalizeIndex(index);
object rv;
if (LuaObjCacheSlim.TryGet(l, pos, out rv))
{
isUserData = true;
return(rv);
}
isUserData = false;
l.checkstack(2);
l.pushlightuserdata(LuaConst.LRKEY_TYPE_TRANS); // #trans
l.gettable(pos); // trans
ILuaTrans trans = null;
if (l.isuserdata(-1))
{
trans = l.GetLuaLightObject(-1) as ILuaTrans;
}
l.pop(1);
if (trans != null)
{
isUserData = true;
rv = trans.GetLua(l, index);
//// Notice the LuaObjCacheSlim.Record should happen when access #tar from a table
//if (rv != null && rv.GetType().IsClass)
//{
// LuaObjCacheSlim.Record(rv, l.topointer(pos), pos);
//}
return(rv);
}
return(null);
}
public void Remove(object obj)
{
LuaObjCacheSlim.Remove(obj);
_Map.Remove(obj);
}