提升Python签名不匹配问题

我遇到了使用python公开的方法签名不匹配问题。这里的下面提升Python签名不匹配问题

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

有在StatusEffect一些虚拟方法，我想在我的Python脚本重写代码，所以我创建了一个类包装。该包装不覆盖或更改AddCancellation以任何方式，我简单的展示它来标记

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

我将其暴露在蟒蛇如下：

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

在我的Python文件，我延长基本StatusEffect类，像这样：

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，当我这样做，我得到以下错误：

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})

我不完全确定问题是什么。 StatCreepEffect应该是StatusEffect的一个实例吗？而Boost :: python自动处理字符串的转换不是吗？我是否错误地调用了该方法？感觉这是我错过的小事，但我不确定它是什么。任何帮助，将不胜感激。

来源

2011-06-06 Megatron

原来我需要有

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

为

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

来源

2011-06-23 03:37:24 Megatron

我认为问题可能是Boost.Python不完全理解StatusEffectWrapper是从StatusEffect派生的。除非有某种原因，你指定手持式，我会尽量只指定类为：

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

来源

2011-06-07 02:42:49 Ray

提升Python签名不匹配问题

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