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Diffstat (limited to 'sources/shiboken2/libshiboken/typeresolver.cpp')
| -rw-r--r-- | sources/shiboken2/libshiboken/typeresolver.cpp | 162 |
1 files changed, 162 insertions, 0 deletions
diff --git a/sources/shiboken2/libshiboken/typeresolver.cpp b/sources/shiboken2/libshiboken/typeresolver.cpp new file mode 100644 index 000000000..3939fff5f --- /dev/null +++ b/sources/shiboken2/libshiboken/typeresolver.cpp @@ -0,0 +1,162 @@ +/**************************************************************************** +** +** 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. +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "typeresolver.h" +#include "google/dense_hash_map" +#include "sbkdbg.h" +#include <cstdlib> +#include <string> +#include "basewrapper_p.h" + +using namespace Shiboken; + +typedef google::dense_hash_map<std::string, TypeResolver*> TypeResolverMap; +static TypeResolverMap typeResolverMap; + +struct TypeResolver::TypeResolverPrivate +{ + CppToPythonFunc cppToPython; + PythonToCppFunc pythonToCpp; + PyTypeObject* pyType; +}; + +static void deinitTypeResolver() +{ + for (TypeResolverMap::const_iterator it = typeResolverMap.begin(); it != typeResolverMap.end(); ++it) + delete it->second; + typeResolverMap.clear(); +} + +void Shiboken::initTypeResolver() +{ + assert(typeResolverMap.empty()); + typeResolverMap.set_empty_key(""); + typeResolverMap.set_deleted_key("?"); + std::atexit(deinitTypeResolver); +} + +TypeResolver::TypeResolver() : m_d(new TypeResolverPrivate) +{ +} + +TypeResolver* TypeResolver::createTypeResolver(const char* typeName, + CppToPythonFunc cppToPy, + PythonToCppFunc pyToCpp, + PyTypeObject* pyType) +{ + TypeResolver*& tr = typeResolverMap[typeName]; + if (!tr) { + tr = new TypeResolver; + tr->m_d->cppToPython = cppToPy; + tr->m_d->pythonToCpp = pyToCpp; + tr->m_d->pyType = pyType; + + /* + * Note: + * + * Value types are also registered as object types, but the generator *always* first register the value + * type version in the TypeResolver and it *must* always do it! otherwise this code wont work. + */ + if (pyType && PyType_IsSubtype(pyType, reinterpret_cast<PyTypeObject*>(&SbkObject_Type))) { + SbkObjectType* sbkType = reinterpret_cast<SbkObjectType*>(pyType); + // TODO-CONVERTERS: to be deprecated + if (!sbkType->d->type_behaviour) { + const size_t len = strlen(typeName); + sbkType->d->type_behaviour = typeName[len -1] == '*' ? BEHAVIOUR_OBJECTTYPE : BEHAVIOUR_VALUETYPE; + } + } + } + return tr; +} + +TypeResolver::~TypeResolver() +{ + delete m_d; +} + +TypeResolver* TypeResolver::get(const char* typeName) +{ + TypeResolverMap::const_iterator it = typeResolverMap.find(typeName); + if (it != typeResolverMap.end()) { + return it->second; + } else { + if (Py_VerboseFlag > 0) + SbkDbg() << "Can't find type resolver for " << typeName; + return 0; + } +} + +void TypeResolver::toCpp(PyObject* pyObj, void** place) +{ + m_d->pythonToCpp(pyObj, place); +} + +PyObject* TypeResolver::toPython(void* cppObj) +{ + return m_d->cppToPython(cppObj); +} + +PyTypeObject* TypeResolver::pythonType() +{ + return m_d->pyType; +} + +TypeResolver::Type TypeResolver::getType(const char* name) +{ + const size_t len = strlen(name); + bool isObjTypeName = name[len - 1] == '*'; + if (TypeResolver::get(name)) { + // great, we found the type in our first attempt! + return isObjTypeName ? ObjectType : ValueType; + } else { + // Type not found... let's copy the string. + std::string typeName(name); + if (isObjTypeName) + typeName.erase(len - 1, 1); + else + typeName += '*'; + isObjTypeName = !isObjTypeName; + + if (TypeResolver::get(typeName.c_str())) + return isObjTypeName ? ObjectType : ValueType; + else + return UnknownType; + } +} + |