我有一个C++类,包含一个(POCO)互斥:
class ClassWithMutex
{
public:
ClassWithMutex();
virtual ~ClassWithMutex();
Poco::Mutex mMyMutex;
private:
ClassWithMutex(const ClassWithMutex& );
ClassWithMutex& operator=(const ClassWithMutex& other);
};
另一个类,使用它:
class ClassHavingAClassWithMutex
{
public:
ClassHavingAClassWithMutex();
~ClassHavingAClassWithMutex();
ClassWithMutex A;
private:
ClassHavingAClassWithMutex(const ClassHavingAClassWithMutex&);
ClassHavingAClassWithMutex& ClassHavingAClassWithMutex::operator=(const ClassHavingAClassWithMutex& other);
};
尝试为ClassHavingClassWithMutex创建包装时,出现错误:
Error C2248 'ClassWithMutex::operator =': cannot access private member declared in class 'ClassWithMutex' mvr C:\builds\vs2015\mvr\python_package\src\mvr\mvrPYTHON_wrap.cxx 6493
Swig生成的代码如下所示:
SWIGINTERN PyObject *_wrap_ClassWithMutex_mMyMutex_get(PyObject *SWIGUNUSEDPARM(self), PyObject *args) {
PyObject *resultobj = 0;
ClassWithMutex *arg1 = (ClassWithMutex *) 0 ;
void *argp1 = 0 ;
int res1 = 0 ;
PyObject *swig_obj[1] ;
Poco::Mutex result;
if (!args) SWIG_fail;
swig_obj[0] = args;
res1 = SWIG_ConvertPtr(swig_obj[0], &argp1,SWIGTYPE_p_ClassWithMutex, 0 | 0 );
if (!SWIG_IsOK(res1)) {
SWIG_exception_fail(SWIG_ArgError(res1), "in method '" "ClassWithMutex_mMyMutex_get" "', argument " "1"" of type '" "ClassWithMutex *""'");
}
arg1 = reinterpret_cast< ClassWithMutex * >(argp1);
{
SWIG_PYTHON_THREAD_BEGIN_ALLOW;
result = ((arg1)->mMyMutex);
SWIG_PYTHON_THREAD_END_ALLOW;
}
resultobj = SWIG_NewPointerObj((new Poco::Mutex(static_cast< const Poco::Mutex& >(result))), SWIGTYPE_p_Poco__Mutex, SWIG_POINTER_OWN | 0 );
return resultobj;
fail:
return NULL;
}
以及由此行发出的错误:
if (arg1) (arg1)->A = *arg2;
and
resultobj = SWIG_NewPointerObj((new Poco::Mutex(static_cast< const Poco::Mutex& >(result))), SWIGTYPE_p_Poco__Mutex, SWIG_POINTER_OWN | 0 );
Swig接口文件:
%immutable
%include "aiClassWithMutex.h"
%include "ClassHavingAClassWithMutex.h"
%mutable
关于如何用Swig正确包装上面的类有什么建议吗?为了防止任何复制,我在上面的类中把拷贝和赋值都做了私有的,但是好像swig坚持要这样做?你知道吗
这不是由复制构造函数引起的,而是属性设置器(b/c
A
是公共的)。如评论中所讨论的,一个选项是通过添加以下内容来隐藏它:在.i文件中的
%include "aiClassWithMutex.h"
之前。你知道吗同样如前所述,SWIG在使
mMyMutex
不可变时使用复制。但是,除了写一个排版图和错误地使用optimal
设置(首先要防止临时文件的构建)之外,没有别的方法可以解决这个问题。这样,函数.i文件看起来像:相关问题 更多 >
编程相关推荐