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Diffstat (limited to 'sources/shiboken2/libshiboken/typeresolver.h')
-rw-r--r-- | sources/shiboken2/libshiboken/typeresolver.h | 139 |
1 files changed, 139 insertions, 0 deletions
diff --git a/sources/shiboken2/libshiboken/typeresolver.h b/sources/shiboken2/libshiboken/typeresolver.h new file mode 100644 index 000000000..bc56522fe --- /dev/null +++ b/sources/shiboken2/libshiboken/typeresolver.h @@ -0,0 +1,139 @@ +/**************************************************************************** +** +** Copyright (C) 2016 The Qt Company Ltd. +** Contact: https://www.qt.io/licensing/ +** +** This file is part of PySide2. +** +** $QT_BEGIN_LICENSE:LGPL$ +** 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. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 3 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL3 included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 3 requirements +** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 2.0 or (at your option) the GNU General +** Public license version 3 or any later version approved by the KDE Free +** Qt Foundation. The licenses are as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 +** included in the packaging of this file. Please review the following +** information to ensure the GNU General Public License requirements will +** be met: https://www.gnu.org/licenses/gpl-2.0.html and +** https://www.gnu.org/licenses/gpl-3.0.html. +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef TYPERESOLVER_H +#define TYPERESOLVER_H + +#include "shibokenmacros.h" +#include "conversions.h" + +namespace Shiboken +{ + +/* To C++ convertion functions. */ +template <typename T> +inline void pythonToValueType(PyObject* pyobj, void** data) +{ + *reinterpret_cast<T*>(*data) = Shiboken::Converter<T>::toCpp(pyobj); +} + +template <typename T> +inline void pythonToObjectType(PyObject* pyobj, void** data) +{ + *reinterpret_cast<T**>(*data) = Shiboken::Converter<T*>::toCpp(pyobj); +} + +template <typename T> +inline PyObject* objectTypeToPython(void* cptr) +{ + return Shiboken::Converter<T*>::toPython(*reinterpret_cast<T**>(cptr)); +} + +template <typename T> +inline PyObject* referenceTypeToPython(void* cptr) +{ + // cptr comes the same way it come when we have a value type, but + // we deliver a Python object of a reference + return Shiboken::Converter<T&>::toPython(*reinterpret_cast<T*>(cptr)); +} + +/** +* \internal This function is not part of the public API. +* Initialize the TypeResource internal cache. +*/ +void initTypeResolver(); + +class LIBSHIBOKEN_API TypeResolver +{ +public: + enum Type + { + ObjectType, + ValueType, + UnknownType + }; + + typedef PyObject* (*CppToPythonFunc)(void*); + typedef void (*PythonToCppFunc)(PyObject*, void**); + + ~TypeResolver(); + + template<typename T> + static TypeResolver* createValueTypeResolver(const char* typeName) + { + return createTypeResolver(typeName, &Shiboken::Converter<T>::toPython, &pythonToValueType<T>, SbkType<T>()); + } + + template<typename T> + static TypeResolver* createObjectTypeResolver(const char* typeName) + { + return createTypeResolver(typeName, &objectTypeToPython<T>, &pythonToObjectType<T>, SbkType<T>()); + } + + /** + * This kind of type resolver is used only when we have a signal with a reference in their arguments + * like on QSqlTableModel::primeInsert. + */ + template<typename T> + static TypeResolver* createReferenceTypeResolver(const char* typeName) + { + return createTypeResolver(typeName, &referenceTypeToPython<T>, &pythonToValueType<T>, SbkType<T>()); + } + + static Type getType(const char* name); + static TypeResolver* get(const char* typeName); + + PyObject* toPython(void* cppObj); + void toCpp(PyObject* pyObj, void** place); + PyTypeObject* pythonType(); + +private: + struct TypeResolverPrivate; + TypeResolverPrivate* m_d; + + TypeResolver(); + // disable object copy + TypeResolver(const TypeResolver&); + TypeResolver& operator=(const TypeResolver&); + + static TypeResolver* createTypeResolver(const char* typeName, CppToPythonFunc cppToPy, PythonToCppFunc pyToCpp, PyTypeObject* pyType); +}; +} + +#endif |