提升Python簽名不匹配問題

我遇到了使用python公開的方法簽名不匹配問題。這裏的下面提升Python簽名不匹配問題

class StatusEffect 
{ 
public: 
    //Virtual functions and non related ommitted 
    void AddCancellation(std::string &effect) 
    { 
     CancelsEffects.insert(effect); 
    } 
}

有在StatusEffect一些虛擬方法，我想在我的Python腳本重寫代碼，所以我創建了一個類包裝。該包裝不覆蓋或更改AddCancellation以任何方式，我簡單的展示它來標記

struct StatusEffectWrapper : Game::StatusEffects::StatusEffect 
{ 
    //Wrappings for virtual functions here. I don't touch AddCancellation 
}

我將其暴露在蟒蛇如下：

class_<StatusEffects::StatusEffect, boost::noncopyable, std::auto_ptr<StatusEffectWrapper> >("StatusEffect") 
    .def("AddCancellation", &StatusEffect::AddCancellation) 
    ;

在我的Python文件，我延長基本StatusEffect類，像這樣：

class StatCreepEffect(StatusEffect): 
    def __init__(self, name, stat_, rate_, descript, uid, turns, prior, canrefresh, poseffect, cats, conds, flgs, sep, pers, cancels): 
     StatusEffect.__init__(self, name, descript, uid, turns, prior, canrefresh, poseffect, cats, conds, flgs, sep, pers) 
     self.rate = rate_ 
     self.stat = stat_ 
     self.PushCancellations(cancels) 
    def PushCancellations(self, cancels): 
     for cancel in cancels: 
      print (cancel) 
      self.AddCancellation(cancel) 

Regen = StatCreepEffect("Regen", Stat.HP, 0.05, "Regenerates a small amount of HP every turn", PrimaryEngine.GetUID(), 14, 4, True, True, StatusCategories.SC_Regen, 0, StatusFlags.TickEffect, True, StatusPersistence.SP_Timer_Cure, ["Poison", "Poison-"])

然而，當我這樣做，我得到以下錯誤：

Poison 
Traceback (most recent call last): 
    File "..\..\..\Resources\Scripts\StatusEffects.py", line 27, in <module> 
    Regen = StatCreepEffect("Regen", Stat.HP, 0.05, "Regenerates a small amount 
of HP every turn", PrimaryEngine.GetUID(), 14, 4, True, True, StatusCategories.S 
C_Regen, 0, StatusFlags.TickEffect, True, StatusPersistence.SP_Timer_Cure, ["Poi 
son", "Poison-"]) 
    File "..\..\..\Resources\Scripts\StatusEffects.py", line 11, in __init__ 
    self.PushCancellations(cancels) 
    File "..\..\..\Resources\Scripts\StatusEffects.py", line 23, in PushCancellati 
ons 
    self.AddCancellation(cancel) 
Boost.Python.ArgumentError: Python argument types in 
    StatusEffect.AddCancellation(StatCreepEffect, str) 
did not match C++ signature: 
    AddCancellation(class Game::StatusEffects::StatusEffect {lvalue}, class std: 
:basic_string<char,struct std::char_traits<char>,class std::allocator<char> > {l 
value})

我不完全確定問題是什麼。 StatCreepEffect應該是StatusEffect的一個實例嗎？而Boost :: python自動處理字符串的轉換不是嗎？我是否錯誤地調用了該方法？感覺這是我錯過的小事，但我不確定它是什麼。任何幫助，將不勝感激。

來源

2011-06-06 Megatron

原來我需要有

void AddCancellation(std::string &effect) 
{ 
    CancelsEffects.insert(effect); 
}

爲

void AddCancellation(const std::string &effect) 
{ 
    CancelsEffects.insert(effect); 
}

來源

2011-06-23 03:37:24 Megatron

我認爲問題可能是Boost.Python不完全理解StatusEffectWrapper是從StatusEffect派生的。除非有某種原因，你指定手持式，我會盡量只指定類爲：

class_<StatusEffects::StatusEffectWrapper, boost::noncopyable>("StatusEffect") 
    .def("AddCancellation", &StatusEffectWrapper::AddCancellation) 
    ;

來源

2011-06-07 02:42:49 Ray

提升Python簽名不匹配問題

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