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/*
* This file is part of the Shiboken Python Bindings Generator project.
*
* Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
*
* Contact: PySide team <contact@pyside.org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#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) {
int 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)
{
int 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;
}
}
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