瞭解編譯順序，編譯錯誤和由於基類導致的luabind undefined

Question

如何跟蹤我的編譯順序？ （以便我可以重新排序）

我的問題： 我正在運行Visual Studio 2012編寫C++應用程序。我綁定一個腳本系統，Lua中，使用LuaBind

LuaBind我的項目隱藏了Lua的東西，並計算出如何將其綁定到Lua語言（或一些魔術）

我可以把一個對象，調用它的功能，並傳遞一個C++對象被賦予LUA腳本函數

// ScriptComponent.h 
class ScriptComponent : public Component 
{ 
public: 
    virtual void Initialize(); 
    virtual void Update(); 
protected: 
    luabind::object luaDataTable; 
    Entity* mOwner; 

-

// ScriptComponent.cpp 
void ScriptComponent::Initialize() { 
    luabind::object compiledScript; 
    luaL_loadfile(L, "myScript.lua"); 
    luabind::object compiledScript(luabind::from_stack(L, -1)); 
    luaDataTable = compiledScript(); 
    lua_pop(L, 1); 
} 

void ScriptComponent::Update() { 
    luaDataTable["run"](mOwner); // Compiler breaks here. 
    // Note: if I remove mOwner from the mix (and in the script file) everything works and runs fine. 
} 

酷！但爲了實現這個目標，luabind需要知道mOwner（實體*）是什麼並且已經定義了。所以，我在不同的文件中定義它：

// GameScriptingSystem.cpp 
using namespace luabind; 
module(inLuaState) 
    [ 
     class_<GameObject>("GameObject"), 
     class_<Entity, bases<GameObject> >("Entity") 
      .def("DebugGetName", &Entity::DebugGetName) 
    ]; 

流程看起來是這樣的：

結果：

錯誤C2504： '實體'：基類未定義

按要求填寫完整錯誤：

... 
2> Component.cpp 
2> ScriptComponent.cpp 
2>boost/type_traits/is_polymorphic.hpp(46): error C2504: 'Entity' : base class undefined 
2>   boost/type_traits/is_polymorphic.hpp(62) : see reference to class template instantiation 'boost::detail::is_polymorphic_imp1<T>::d2' being compiled 
2>   with 
2>   [ 
2>    T=Entity 
2>   ] 
2>   boost/type_traits/is_polymorphic.hpp(97) : see reference to class template instantiation 'boost::detail::is_polymorphic_imp1<T>' being compiled 
2>   with 
2>   [ 
2>    T=Entity 
2>   ] 
2>   boost/type_traits/is_polymorphic.hpp(102) : see reference to class template instantiation 'boost::detail::is_polymorphic_imp<T>' being compiled 
2>   with 
2>   [ 
2>    T=Entity 
2>   ] 
2>   luabind/detail/make_instance.hpp(42) : see reference to class template instantiation 'boost::is_polymorphic<T>' being compiled 
2>   with 
2>   [ 
2>    T=Entity 
2>   ] 
2>   luabind/detail/make_instance.hpp(74) : see reference to function template instantiation 'std::pair<_Ty1,_Ty2> luabind::detail::get_dynamic_class<T>(lua_State *,T *)' being compiled 
2>   with 
2>   [ 
2>    _Ty1=luabind::detail::class_id, 
2>    _Ty2=void *, 
2>    T=Entity 
2>   ] 
2>   luabind/detail/policy.hpp(228) : see reference to function template instantiation 'void luabind::detail::make_instance<T*>(lua_State *,P)' being compiled 
2>   with 
2>   [ 
2>    T=Entity, 
2>    P=Entity * 
2>   ] 
2>   luabind/detail/convert_to_lua.hpp(87) : see reference to function template instantiation 'void luabind::detail::pointer_converter::apply<Entity>(lua_State *,T *)' being compiled 
2>   with 
2>   [ 
2>    T=Entity 
2>   ] 
2>   luabind/object.hpp(1072) : see reference to function template instantiation 'void luabind::detail::convert_to_lua_p<1,Entity*,Policies>(lua_State *,const T &,const Policies &)' being compiled 
2>   with 
2>   [ 
2>    Policies=luabind::detail::null_type, 
2>    T=Entity * 
2>   ] 
2>   luabind/object.hpp(1140) : see reference to function template instantiation 'void luabind::detail::push_args_from_tuple<Index>::apply<T0,boost::tuples::detail::map_tuple_to_cons<boost::tuples::null_type,boost::tuples::null_type,boost::tuples::null_type,boost::tuples::null_type,boost::tuples::null_type,boost::tuples::null_type,boost::tuples::null_type,boost::tuples::null_type,boost::tuples::null_type,boost::tuples::null_type>::type,luabind::detail::null_type>(lua_State *,const boost::tuples::cons<HT,TT> &,const Policies &)' being compiled 
2>   with 
2>   [ 
2>    Index=1, 
2>    T0=Entity *const *, 
2>    HT=Entity *const *, 
2>    TT=boost::tuples::detail::map_tuple_to_cons<boost::tuples::null_type,boost::tuples::null_type,boost::tuples::null_type,boost::tuples::null_type,boost::tuples::null_type,boost::tuples::null_type,boost::tuples::null_type,boost::tuples::null_type,boost::tuples::null_type,boost::tuples::null_type>::type, 
2>    Policies=luabind::detail::null_type 
2>   ] 
2>   luabind/object.hpp(1140) : see reference to function template instantiation 'void luabind::detail::push_args_from_tuple<Index>::apply<T0,boost::tuples::detail::map_tuple_to_cons<boost::tuples::null_type,boost::tuples::null_type,boost::tuples::null_type,boost::tuples::null_type,boost::tuples::null_type,boost::tuples::null_type,boost::tuples::null_type,boost::tuples::null_type,boost::tuples::null_type,boost::tuples::null_type>::type,luabind::detail::null_type>(lua_State *,const boost::tuples::cons<HT,TT> &,const Policies &)' being compiled 
2>   with 
2>   [ 
2>    Index=1, 
2>    T0=Entity *const *, 
2>    HT=Entity *const *, 
2>    TT=boost::tuples::detail::map_tuple_to_cons<boost::tuples::null_type,boost::tuples::null_type,boost::tuples::null_type,boost::tuples::null_type,boost::tuples::null_type,boost::tuples::null_type,boost::tuples::null_type,boost::tuples::null_type,boost::tuples::null_type,boost::tuples::null_type>::type, 
2>    Policies=luabind::detail::null_type 
2>   ] 
2>   luabind/object.hpp(1112) : see reference to function template instantiation 'luabind::adl::object luabind::adl::call_proxy<ValueWrapper,Arguments>::call<luabind::detail::null_type>(Policies *)' being compiled 
2>   with 
2>   [ 
2>    ValueWrapper=luabind::adl::index_proxy<luabind::adl::object>, 
2>    Arguments=boost::tuples::tuple<Entity *const *,boost::tuples::null_type,boost::tuples::null_type,boost::tuples::null_type,boost::tuples::null_type,boost::tuples::null_type,boost::tuples::null_type,boost::tuples::null_type,boost::tuples::null_type,boost::tuples::null_type>, 
2>    Policies=luabind::detail::null_type 
2>   ] 
2>   luabind/object.hpp(1112) : see reference to function template instantiation 'luabind::adl::object luabind::adl::call_proxy<ValueWrapper,Arguments>::call<luabind::detail::null_type>(Policies *)' being compiled 
2>   with 
2>   [ 
2>    ValueWrapper=luabind::adl::index_proxy<luabind::adl::object>, 
2>    Arguments=boost::tuples::tuple<Entity *const *,boost::tuples::null_type,boost::tuples::null_type,boost::tuples::null_type,boost::tuples::null_type,boost::tuples::null_type,boost::tuples::null_type,boost::tuples::null_type,boost::tuples::null_type,boost::tuples::null_type>, 
2>    Policies=luabind::detail::null_type 
2>   ] 
2>   luabind/object.hpp(1110) : while compiling class template member function 'luabind::adl::call_proxy<ValueWrapper,Arguments>::~call_proxy(void)' 
2>   with 
2>   [ 
2>    ValueWrapper=luabind::adl::index_proxy<luabind::adl::object>, 
2>    Arguments=boost::tuples::tuple<Entity *const *,boost::tuples::null_type,boost::tuples::null_type,boost::tuples::null_type,boost::tuples::null_type,boost::tuples::null_type,boost::tuples::null_type,boost::tuples::null_type,boost::tuples::null_type,boost::tuples::null_type> 
2>   ] 
2>   ..\src\Game\GameObjects\Components\ScriptComponent.cpp(75) : see reference to function template instantiation 'luabind::adl::call_proxy<ValueWrapper,Arguments>::~call_proxy(void)' being compiled 
2>   with 
2>   [ 
2>    ValueWrapper=luabind::adl::index_proxy<luabind::adl::object>, 
2>    Arguments=boost::tuples::tuple<Entity *const *,boost::tuples::null_type,boost::tuples::null_type,boost::tuples::null_type,boost::tuples::null_type,boost::tuples::null_type,boost::tuples::null_type,boost::tuples::null_type,boost::tuples::null_type,boost::tuples::null_type> 
2>   ] 
2>   ..\src\Game\GameObjects\Components\ScriptComponent.cpp(75) : see reference to class template instantiation 'luabind::adl::call_proxy<ValueWrapper,Arguments>' being compiled 
2>   with 
2>   [ 
2>    ValueWrapper=luabind::adl::index_proxy<luabind::adl::object>, 
2>    Arguments=boost::tuples::tuple<Entity *const *,boost::tuples::null_type,boost::tuples::null_type,boost::tuples::null_type,boost::tuples::null_type,boost::tuples::null_type,boost::tuples::null_type,boost::tuples::null_type,boost::tuples::null_type,boost::tuples::null_type> 
2>   ] 
2>boost/type_traits/is_polymorphic.hpp(34): error C2504: 'Entity' : base class undefined 
2>   boost/type_traits/is_polymorphic.hpp(62) : see reference to class template instantiation 'boost::detail::is_polymorphic_imp1<T>::d1' being compiled 
2>   with 
2>   [ 
2>    T=Entity 
2>   ] 
2> Map.cpp 
2> Generating Code... 
2> Compiling... 
2> GameScriptingSystem.cpp 
2> PoCToolsInterface.cpp 
.. 

據我所知，它由於構建順序。我最好的猜測是Luabind在編譯時完成了所有這些工作，並且當我首先查看編譯時，ScriptComponent首先編譯爲,GameScriptSystem編譯後是。當ScriptComponent構建時，全部通過luabind錯誤。 GameScriptSystem建立再經過（其中定義了所有的東西LuaBind抱怨）

所以：

• 如何跟蹤我的建造順序？查看哪些文件觸發了其他人的構建，以便我可以根據自己的喜好重新安排它？ （它的一個大項目，它不像看着它2秒）

• 如果你知道luabind，我對這是問題嗎？

其他數據：

-- myScript.lua 
local Cat = {} 
local ticks = 0 

function Cat.run(entity) 
    ticks = ticks + 1 
    LOG(tostring(ticks)) 
    LOG(entity:DebugGetName()) 
end 

return Cat 

Answer 1

不，這不是由於構建順序。 C++編譯單元獨立構建。即使定義實體的.cpp文件已經編譯完成，它也不會自動提供。

C++永遠不會去搜索實體的定義。在編譯單元中使用實體的唯一方法是針對該實體在該編譯單元中存在的聲明（取決於用法，您可能只需要前向聲明或完整定義）。通常使用頭文件和#include來避免代碼重複。