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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 <QtCore/QDebug>
#include <fileout.h>
#include "convertergenerator.h"
static Indentor INDENT;
ConverterGenerator::ConverterGenerator()
{
// QPair
m_conversions << qMakePair(QString("QPair<"), &m_qpairTypes);
// QList
m_conversions << qMakePair(QString("QList<"), &m_qlistTypes);
// QVector
m_conversions << qMakePair(QString("QVector<"), &m_qvectorTypes);
// QMap
m_conversions << qMakePair(QString("QMap<"), &m_qmapTypes);
// QHash
m_conversions << qMakePair(QString("QHash<"), &m_qhashTypes);
// QMultiMap
m_conversions << qMakePair(QString("QMultiMap<"), &m_qmultiMapTypes);
}
void ConverterGenerator::finishGeneration()
{
if (!classes().size())
return;
QString fileOutPath;
foreach (AbstractMetaClass *cls, classes()) {
if (!shouldGenerate(cls))
continue;
if (fileOutPath.isNull()) {
m_packageName = cls->package();
fileOutPath = outputDirectory() + '/' + subDirectoryForClass(cls)
+ "/converter_register_" + moduleName().toLower() + ".hpp";
}
foreach (AbstractMetaFunction* func, filterFunctions(cls))
checkFunctionMetaTypes(func);
}
FileOut fileOut(fileOutPath);
QTextStream& s = fileOut.stream;
// write license comment
s << licenseComment() << endl;
s << "#ifndef CONVERTERREGISTER_" << moduleName().toUpper() << "_HPP\n";
s << "#define CONVERTERREGISTER_" << moduleName().toUpper() << "_HPP\n\n";
//Includes
QStringList includes;
foreach (AbstractMetaClass *cls, classes()) {
if (cls->typeEntry()->include().isValid()) {
QString include_file = cls->typeEntry()->include().toString();
if (!includes.contains(include_file)) {
s << include_file << endl;
includes << include_file;
}
}
if (cls->typeEntry()->generateCode()) {
QList<Include> extra_includes = cls->typeEntry()->extraIncludes();
foreach (Include include, extra_includes) {
if (!includes.contains(include.toString())) {
s << include.toString() << endl;
includes << include.toString();
}
}
}
}
s << "#include \"type_converter.hpp\"\n\n";
s << "void register_type_converters_" << moduleName().toLower() << "()\n{\n";
Indentation indent(INDENT);
writeConverterRegistration(s, "register_qpair_converter", "QPair", m_qpairTypes);
writeConverterRegistration(s, "register_container_converter", "QList", m_qlistTypes);
writeConverterRegistration(s, "register_container_converter", "QVector", m_qvectorTypes);
writeConverterRegistration(s, "register_dict_converter", "QMap", m_qmapTypes);
writeConverterRegistration(s, "register_dict_converter", "QHash", m_qhashTypes);
writeConverterRegistration(s, "register_multimap_converter", "QMultiMap", m_qmultiMapTypes);
s << "}\n\n";
s << "#endif\n\n";
m_numGeneratedWritten = m_qpairTypes.size() + m_qlistTypes.size() +
m_qvectorTypes.size() + m_qmapTypes.size() +
m_qhashTypes.size();
}
void ConverterGenerator::writeConverterRegistration(QTextStream& out,
const QString& funcName,
const QString& type,
const QSet<QString>& params)
{
foreach (QString param, params) {
QString completeType(QMetaObject::normalizedType(
(type + '<' + param + " >").toLatin1().data()));
out << INDENT << "PySide::" << funcName;
out << '<' << completeType << " >(\"";
out << completeType << "\");" << endl;
}
}
void ConverterGenerator::checkFunctionMetaTypes(AbstractMetaFunction* func)
{
if (func->type())
checkMetaType(functionReturnType(func));
foreach (AbstractMetaArgument* arg, func->arguments()) {
if (arg->type())
checkMetaType(argumentString(func, arg, Options(SkipName) | SkipDefaultValues));
}
}
// FIXME Use some AbstracyMetaAnything info instead of parse the cpp signature?
void ConverterGenerator::checkMetaType(const QString& cppSignature)
{
QRegExp typeRegex("Q\\w+");
foreach (Conversion conv, m_conversions) {
int index = cppSignature.indexOf(conv.first);
if (index >= 0) {
QString templateArg = extractTemplateArgument(cppSignature.right(cppSignature.length() - index - conv.first.length()));
conv.second->insert(templateArg);
// detect types to generate includes
int offset = 0;
while ((offset = typeRegex.indexIn(templateArg, offset)) != -1) {
const QString cap(typeRegex.cap(0));
offset += cap.length();
}
}
}
}
QString ConverterGenerator::extractTemplateArgument(const QString& templateParams)
{
int stack = 0;
for (int i = 0; i < templateParams.length(); ++i) {
QChar c = templateParams[i];
if (c == '<') {
stack++;
} else if (c == '>') {
stack--;
if (stack < 0)
return templateParams.left(i).trimmed();
}
}
Q_ASSERT(false);
return QString();
}
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