Method CopyStackFrom

src/Bindings/LuaState.cpp:1201–1269

int cLuaState::CopyStackFrom(cLuaState & a_SrcLuaState, int a_SrcStart, int a_SrcEnd)
{
	/*
	// DEBUG:
	LOGD("Copying stack values from %d to %d", a_SrcStart, a_SrcEnd);
	a_SrcLuaState.LogStack("Src stack before copying:");
	LogStack("Dst stack before copying:");
	*/
	for (int i = a_SrcStart; i <= a_SrcEnd; ++i)
	{
		int t = lua_type(a_SrcLuaState, i);
		switch (t)
		{
			case LUA_TNIL:
			{
				lua_pushnil(m_LuaState);
				break;
			}
			case LUA_TSTRING:
			{
				AString s;
				a_SrcLuaState.ToString(i, s);
				Push(s);
				break;
			}
			case LUA_TBOOLEAN:
			{
				bool b = (tolua_toboolean(a_SrcLuaState, i, false) != 0);
				Push(b);
				break;
			}
			case LUA_TNUMBER:
			{
				lua_Number d = tolua_tonumber(a_SrcLuaState, i, 0);
				Push(d);
				break;
			}
			case LUA_TUSERDATA:
			{
				// Get the class name:
				const char * type = NULL;
				if (lua_getmetatable(a_SrcLuaState, i) == 0)
				{
					LOGWARNING("%s: Unknown class in pos %d, cannot copy.", __FUNCTION__, i);
					lua_pop(m_LuaState, i - a_SrcStart);
					return -1;
				}
				lua_rawget(a_SrcLuaState, LUA_REGISTRYINDEX);  // Stack +1
				type = lua_tostring(a_SrcLuaState, -1);
				lua_pop(a_SrcLuaState, 1);                     // Stack -1
				
				// Copy the value:
				void * ud = tolua_touserdata(a_SrcLuaState, i, NULL);
				tolua_pushusertype(m_LuaState, ud, type);
				break;
			}
			default:
			{