|
private lua_getmetatable ( |
||
| luaState | ||
| objIndex | int | |
| return | int | |
//把一个table func 放在栈顶
public bool RawGetField(string field)
{
IntPtr L = _Interpreter.L;
LuaTypes type = LuaTypes.LUA_TNONE;
LuaDLL.lua_getref(L, _Reference);
LuaDLL.lua_pushstring(L, field);
LuaDLL.lua_rawget(L, -2);
if (LuaDLL.lua_isnil(L, -1))
{
LuaDLL.lua_pop(L, 1);
if (LuaDLL.lua_getmetatable(L, -1) > 0)
{
LuaDLL.lua_pushstring(L, field);
LuaDLL.lua_rawget(L, -2);
}
}
type = LuaDLL.lua_type(L, -1);
if (type == LuaTypes.LUA_TFUNCTION)
{
return(true);
}
return(false);
}
public static int unregisterTable(IntPtr luaState)
{
ObjectTranslator translator = ObjectTranslator.FromState(luaState);
try
{
if (LuaDLL.lua_getmetatable(luaState, 1) != 0)
{
LuaDLL.lua_pushstring(luaState, "__index");
LuaDLL.lua_gettable(luaState, -2);
object obj = translator.getRawNetObject(luaState, -1);
if (obj == null) translator.throwError(luaState, "unregister_table: arg is not valid table");
FieldInfo luaTableField = obj.GetType().GetField("__luaInterface_luaTable");
if (luaTableField == null) translator.throwError(luaState, "unregister_table: arg is not valid table");
luaTableField.SetValue(obj, null);
LuaDLL.lua_pushnil(luaState);
LuaDLL.lua_setmetatable(luaState, 1);
LuaDLL.lua_pushstring(luaState, "base");
LuaDLL.lua_pushnil(luaState);
LuaDLL.lua_settable(luaState, 1);
}
else translator.throwError(luaState, "unregister_table: arg is not valid table");
}
catch (Exception e)
{
translator.throwError(luaState, e.Message);
}
return 0;
}
public static IntPtr luaL_checkudata(IntPtr L, int ud, string tname)
{
IntPtr intPtr = LuaDLL.lua_touserdata(L, ud);
if (intPtr != IntPtr.Zero && LuaDLL.lua_getmetatable(L, ud) != 0)
{
LuaDLL.lua_getfield(L, LuaIndexes.LUA_REGISTRYINDEX, tname);
if (LuaDLL.lua_rawequal(L, -1, -2) != 0)
{
LuaDLL.lua_pop(L, 2);
return(intPtr);
}
}
LuaDLL.luaL_typerror(L, ud, tname, null);
return(IntPtr.Zero);
}
public static int unregisterTable(IntPtr luaState)
{
ObjectTranslator objectTranslator = ObjectTranslator.FromState(luaState);
try
{
if (LuaDLL.lua_getmetatable(luaState, 1) != 0)
{
LuaDLL.lua_pushstring(luaState, "__index");
LuaDLL.lua_gettable(luaState, -2);
object rawNetObject = objectTranslator.getRawNetObject(luaState, -1);
if (rawNetObject == null)
{
objectTranslator.throwError(luaState, "unregister_table: arg is not valid table");
}
FieldInfo field = rawNetObject.GetType().GetField("__luaInterface_luaTable");
if (field == null)
{
objectTranslator.throwError(luaState, "unregister_table: arg is not valid table");
}
field.SetValue(rawNetObject, null);
LuaDLL.lua_pushnil(luaState);
LuaDLL.lua_setmetatable(luaState, 1);
LuaDLL.lua_pushstring(luaState, "base");
LuaDLL.lua_pushnil(luaState);
LuaDLL.lua_settable(luaState, 1);
}
else
{
objectTranslator.throwError(luaState, "unregister_table: arg is not valid table");
}
}
catch (Exception ex)
{
objectTranslator.throwError(luaState, ex.Message);
}
return(0);
}
/*
* Implementation of free_object. Clears the metatable and the
* base field, freeing the created object for garbage-collection
*/
private int unregisterTable(IntPtr luaState)
{
try
{
if (LuaDLL.lua_getmetatable(luaState, 1) != 0)
{
LuaDLL.lua_pushstring(luaState, "__index");
LuaDLL.lua_gettable(luaState, -2);
object obj = getRawNetObject(luaState, -1);
if (obj == null)
{
throwError(luaState, "unregister_table: arg is not valid table");
}
FieldInfo luaTableField = obj.GetType().GetField("__luaInterface_luaTable");
if (luaTableField == null)
{
throwError(luaState, "unregister_table: arg is not valid table");
}
luaTableField.SetValue(obj, null);
LuaDLL.lua_pushnil(luaState);
LuaDLL.lua_setmetatable(luaState, 1);
LuaDLL.lua_pushstring(luaState, "base");
LuaDLL.lua_pushnil(luaState);
LuaDLL.lua_settable(luaState, 1);
}
else
{
throwError(luaState, "unregister_table: arg is not valid table");
}
}
catch (Exception e)
{
throwError(luaState, e.Message);
}
return(0);
}
public int LuaGetMetaTable(int idx)
{
return(LuaDLL.lua_getmetatable(L, idx));
}
public static bool lua_metatableequal(IntPtr luaState, int index, string metatable)
{
LuaDLL.lua_getmetatable(luaState, index);
LuaDLL.lua_getglobal(luaState, metatable);
return(LuaDLL.lua_equal(luaState, -1, -2) > 0 ? true : false);
}
