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/****************************************************************************
**
** Copyright (C) 2021 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of Qt for Python.
**
** $QT_BEGIN_LICENSE:COMM$
**
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef BINDINGMANAGER_H
#define BINDINGMANAGER_H
#include "sbkpython.h"
#include <set>
#include "shibokenmacros.h"
struct SbkObject;
struct SbkObjectType;
namespace Shiboken
{
struct DestructorEntry;
typedef void (*ObjectVisitor)(SbkObject *, void *);
class LIBSHIBOKEN_API BindingManager
{
public:
BindingManager(const BindingManager &) = delete;
BindingManager(BindingManager &&) = delete;
BindingManager &operator=(const BindingManager &) = delete;
BindingManager &operator=(BindingManager &&) = delete;
static BindingManager &instance();
bool hasWrapper(const void *cptr);
void registerWrapper(SbkObject *pyObj, void *cptr);
void releaseWrapper(SbkObject *wrapper);
void runDeletionInMainThread();
void addToDeletionInMainThread(const DestructorEntry &);
SbkObject *retrieveWrapper(const void *cptr);
PyObject *getOverride(const void *cptr, PyObject *nameCache[], const char *methodName);
void addClassInheritance(SbkObjectType *parent, SbkObjectType *child);
/**
* Try to find the correct type of *cptr knowing that it's at least of type \p type.
* In case of multiple inheritance this function may change the contents of cptr.
* \param cptr a pointer to a pointer to the instance of type \p type
* \param type type of *cptr
* \warning This function is slow, use it only as last resort.
*/
SbkObjectType *resolveType(void **cptr, SbkObjectType *type);
std::set<PyObject *> getAllPyObjects();
/**
* Calls the function \p visitor for each object registered on binding manager.
* \note As various C++ pointers can point to the same PyObject due to multiple inheritance
* a PyObject can be called more than one time for each PyObject.
* \param visitor function called for each object.
* \param data user data passed as second argument to the visitor function.
*/
void visitAllPyObjects(ObjectVisitor visitor, void *data);
private:
~BindingManager();
BindingManager();
struct BindingManagerPrivate;
BindingManagerPrivate *m_d;
};
} // namespace Shiboken
#endif // BINDINGMANAGER_H
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