public static int IsNull(IntPtr ptr)
{
try
{
LuaTypes t = LuaNativeMethods.lua_type(ptr, 1);
LuaObject.PushValue(ptr, true);
if (t == LuaTypes.TYPE_NIL)
{
LuaObject.PushValue(ptr, true);
}
else if (t == LuaTypes.TYPE_USERDATA || LuaObject.IsLuaClass(ptr, 1))
{
// LUA_TUSERDATA or LUA_TTABLE(Class inherited from Unity Native)
object o = LuaObject.CheckObj(ptr, 1);
if (o is UnityEngine.Object)
{
LuaObject.PushValue(ptr, ((UnityEngine.Object)o) == null);
}
else
{
LuaObject.PushValue(ptr, o.Equals(null));
}
}
else
{
LuaObject.PushValue(ptr, false);
}
return(2);
}
catch (Exception e)
{
return(Error(ptr, e));
}
}
public static object CheckVar(IntPtr ptr, int p)
{
LuaTypes type = LuaNativeMethods.lua_type(ptr, p);
switch (type)
{
case LuaTypes.TYPE_NUMBER:
return(LuaNativeMethods.lua_tonumber(ptr, p));
case LuaTypes.TYPE_STRING:
return(LuaNativeMethods.lua_tostring(ptr, p));
case LuaTypes.TYPE_BOOLEAN:
return(LuaNativeMethods.lua_toboolean(ptr, p));
case LuaTypes.TYPE_FUNCTION:
{
LuaFunction v;
CheckType(ptr, p, out v);
return(v);
}
case LuaTypes.TYPE_TABLE:
{
if (IsLuaValueType(ptr, p))
{
if (LuaTypeCheck(ptr, p, "Vector2"))
{
Vector2 v;
CheckType(ptr, p, out v);
return(v);
}
else if (LuaTypeCheck(ptr, p, "Vector3"))
{
Vector3 v;
CheckType(ptr, p, out v);
return(v);
}
else if (LuaTypeCheck(ptr, p, "Vector4"))
{
Vector4 v;
CheckType(ptr, p, out v);
return(v);
}
else if (LuaTypeCheck(ptr, p, "Quaternion"))
{
Quaternion v;
CheckType(ptr, p, out v);
return(v);
}
else if (LuaTypeCheck(ptr, p, "Color"))
{
Color c;
CheckType(ptr, p, out c);
return(c);
}
Logger.LogError("unknown lua value type");
return(null);
}
else if (IsLuaClass(ptr, p))
{
return(CheckObj(ptr, p));
}
else
{
LuaTable v;
CheckType(ptr, p, out v);
return(v);
}
}
case LuaTypes.TYPE_USERDATA:
return(LuaObject.CheckObj(ptr, p));
case LuaTypes.TYPE_THREAD:
{
LuaThread lt;
CheckType(ptr, p, out lt);
return(lt);
}
default:
return(null);
}
}
