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/*
* This file is part of the Boost Python Generator project.
*
* Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
*
* Contact: PySide team <contact@pyside.org>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* version 2 as published by the Free Software Foundation.
*
* This program 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
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA
*
*/
#include "hppgenerator.h"
#include <apiextractor/reporthandler.h>
#include <QtCore/QDir>
#include <QtCore/QTextStream>
#include <QtCore/QVariant>
#include <QtCore/QRegExp>
#include <QtCore/QDebug>
static Indentor INDENT;
QString HppGenerator::fileNameForClass(const AbstractMetaClass *cppClass) const
{
return getWrapperName(cppClass) + QLatin1String(".hpp");
}
void HppGenerator::writeCopyCtor(QTextStream &s, const AbstractMetaClass *cppClass)
{
s << INDENT << getWrapperName(cppClass) << "(PyObject *py_self, const " << cppClass->qualifiedCppName() << "& self)"
<< " : " << cppClass->qualifiedCppName() << "(self), wrapper(py_self)" << endl
<< INDENT << "{" << endl
<< INDENT << "}" << endl;
}
void HppGenerator::generateClass(QTextStream &s, const AbstractMetaClass *cppClass)
{
ReportHandler::debugSparse("Generating header for " + cppClass->fullName());
Indentation indent(INDENT);
// write license comment
s << licenseComment() << endl;
QString wrapperName = HppGenerator::getWrapperName(cppClass);
// Header
s << "#ifndef __" << wrapperName.toUpper() << "__" << endl;
s << "#define __" << wrapperName.toUpper() << "__" << endl << endl;
s << "#include <pyside.hpp>" << endl;
//Includes
if (cppClass->typeEntry()->include().isValid())
s << cppClass->typeEntry()->include().toString() << endl << endl;
s << "using namespace PySide;" << endl << endl;
if (!cppClass->isPolymorphic() || cppClass->hasPrivateDestructor() || cppClass->isNamespace())
s << "namespace " << wrapperName << " {" << endl << endl;
bool needWriteBackReference = false;
if (cppClass->isNamespace()) {
s << INDENT << "struct Namespace {};" << endl;
} else {
QString className;
bool create_wrapper = canCreateWrapperFor(cppClass);
bool is_wrapper = false;
// detect the held type
QString held_type = cppClass->typeEntry()->heldTypeValue();
if (held_type.isEmpty() && create_wrapper)
held_type = "qptr";
writeCodeSnips(s, cppClass->typeEntry()->codeSnips(),
CodeSnip::Declaration, TypeSystem::NativeCode);
if (cppClass->isPolymorphic() && !cppClass->hasPrivateDestructor()) {
// Class
s << "class PYSIDE_LOCAL " << wrapperName;
if (create_wrapper) {
s << " : public " << cppClass->qualifiedCppName() << ", public PySide::wrapper";
}
s << endl;
s << "{" << endl;
}
writeCodeSnips(s, cppClass->typeEntry()->codeSnips(),
CodeSnip::Declaration, TypeSystem::ShellDeclaration);
if (cppClass->isPolymorphic() && !cppClass->hasPrivateDestructor()) {
s << endl << "private:" << endl;
className = wrapperName;
is_wrapper = true;
} else {
className = cppClass->qualifiedCppName();
}
// print the huge boost::python::class_ typedef
s << INDENT << "typedef boost::python::class_< " << cppClass->qualifiedCppName();
writeBaseClass(s, cppClass);
if (!held_type.isEmpty())
s << ", PySide::" << held_type << " < " << className << ", qptr_base::no_check_cache | qptr_base::"
<< ( is_wrapper ? "wrapper_pointer" : "no_wrapper_pointer") << "> ";
if (!isCopyable(cppClass))
s << ", boost::noncopyable";
s << " > class_type;" << endl;
if (cppClass->isPolymorphic() && !cppClass->hasPrivateDestructor()) {
s << "public:" << endl;
if (isCopyable(cppClass))
writeCopyCtor(s, cppClass);
foreach (AbstractMetaFunction *func, filterFunctions(cppClass))
writeFunction(s, func);
if (create_wrapper) {
//destructor
s << INDENT << "~" << wrapperName << "();" << endl;
if (cppClass->isQObject() && (cppClass->name() != "QObject"))
s << INDENT << "using QObject::parent;" << endl;
}
}
writeCodeSnips(s, cppClass->typeEntry()->codeSnips(),
CodeSnip::End, TypeSystem::ShellDeclaration);
}
QString staticKeyword = cppClass->isNamespace() ? QLatin1String("") : QLatin1String("static ");
s << INDENT;
if (cppClass->isPolymorphic() && !cppClass->hasPrivateDestructor()) {
s << "//static member used to export class" << endl;
s << INDENT << staticKeyword;
}
s << "void define_python_class() throw();" << endl << endl;
writeCodeSnips(s, cppClass->typeEntry()->codeSnips(),
CodeSnip::PrototypeInitialization, TypeSystem::NativeCode);
s << "};" << endl << endl;
s << "#endif // __" << wrapperName.toUpper() << "__" << endl << endl;
}
void HppGenerator::writeFunction(QTextStream &s, const AbstractMetaFunction* func)
{
// pure virtual functions need a default implementation
if ((func->isPrivate() && !func->isConstructor()) || (func->isModifiedRemoved() && !func->isAbstract()))
return;
// do not write copy ctors here.
if (func->isCopyConstructor())
return;
if (func->isConstructor() || func->isAbstract() || func->isVirtual()) {
if (func->isVirtual() && !func->isAbstract() && !func->isConstructor()
&& !func->ownerClass()->hasPrivateDestructor()
&& func->implementingClass() == func->ownerClass()) {
s << INDENT << "static " << signatureForDefaultVirtualMethod(func, "", "_default", Generator::Options( Generator::SkipName | Generator::SkipRemovedArguments) ) << ';' << endl;
}
if (func->isConstructor()) {
s << INDENT << getWrapperName(func->ownerClass()) << "(PyObject *py_self" << (func->arguments().size() ? "," : "");
writeFunctionArguments(s, func, Options(OriginalTypeDescription) | SkipName);
s << ")";
} else {
s << INDENT << functionSignature(func, "", "", Options(OriginalTypeDescription) | SkipName);
}
if (func->isModifiedRemoved() && func->isAbstract())
writeDefaultImplementation(s, func);
else
s << ';' << endl;
}
}
void HppGenerator::writeDefaultImplementation(QTextStream& s, const AbstractMetaFunction* func)
{
QString returnValue;
if (func->type()) {
if (func->type()->isObject() || func->type()->isQObject() || func->type()->name() == "void")
returnValue = "0";
else
returnValue = functionReturnType(func) + "()";
}
s << " { return " << returnValue << "; }" << endl;
}
void HppGenerator::writeBaseClass(QTextStream& s, const AbstractMetaClass* cppClass)
{
if (!cppClass->isNamespace() && !cppClass->isInterface()) {
QStringList baseClass = getBaseClasses(cppClass);
if (baseClass.isEmpty()) {
const ComplexTypeEntry *type = cppClass->typeEntry();
if (cppClass->name() != type->defaultSuperclass()) {
QString sc = type->defaultSuperclass();
if (!sc.isEmpty())
s << ", python::bases< " << sc << "> ";
}
} else {
s << ", boost::python::bases< " << baseClass.join(", ") << " > ";
}
}
}
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