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moved return value creation AFTER the successful check of the call parameters, otherwise the return value allocation is done for nothing...
moved return value creation AFTER the successful check of the call parameters, otherwise the return value allocation is done for nothing git-svn-id: svn://svn.code.sf.net/p/pythonqt/code/trunk@81 ea8d5007-eb21-0410-b261-ccb3ea6e24a9

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PythonQtMethodInfo.cpp
319 lines | 11.1 KiB | text/x-c | CppLexer
/ src / PythonQtMethodInfo.cpp
/*
*
* Copyright (C) 2006 MeVis Research GmbH All Rights Reserved.
*
* 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.
*
* Further, this software is distributed without any warranty that it is
* free of the rightful claim of any third person regarding infringement
* or the like. Any license provided herein, whether implied or
* otherwise, applies only to this software file. Patent licenses, if
* any, provided herein do not apply to combinations of this program with
* other software, or any other product whatsoever.
*
* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* Contact information: MeVis Research GmbH, Universitaetsallee 29,
* 28359 Bremen, Germany or:
*
* http://www.mevis.de
*
*/
//----------------------------------------------------------------------------------
/*!
// \file PythonQtMethodInfo.cpp
// \author Florian Link
// \author Last changed by $Author: florian $
// \date 2006-05
*/
//----------------------------------------------------------------------------------
#include "PythonQtMethodInfo.h"
#include <iostream>
QHash<QByteArray, PythonQtMethodInfo*> PythonQtMethodInfo::_cachedSignatures;
QHash<QByteArray, QByteArray> PythonQtMethodInfo::_parameterNameAliases;
PythonQtMethodInfo::PythonQtMethodInfo(const QMetaMethod& meta)
{
#ifdef PYTHONQT_DEBUG
QByteArray sig(meta.signature());
sig = sig.mid(sig.indexOf('('));
QByteArray fullSig = QByteArray(meta.typeName()) + " " + sig;
std::cout << "caching " << fullSig.data() << std::endl;
#endif
ParameterInfo type;
fillParameterInfo(type, QByteArray(meta.typeName()));
_parameters.append(type);
QByteArray name;
QList<QByteArray> names = meta.parameterTypes();
foreach (name, names) {
fillParameterInfo(type, name);
_parameters.append(type);
}
}
const PythonQtMethodInfo* PythonQtMethodInfo::getCachedMethodInfo(const QMetaMethod& signal)
{
QByteArray sig(signal.signature());
sig = sig.mid(sig.indexOf('('));
QByteArray fullSig = QByteArray(signal.typeName()) + " " + sig;
PythonQtMethodInfo* result = _cachedSignatures.value(fullSig);
if (!result) {
result = new PythonQtMethodInfo(signal);
_cachedSignatures.insert(fullSig, result);
}
return result;
}
const PythonQtMethodInfo* PythonQtMethodInfo::getCachedMethodInfoFromMetaObjectAndSignature(const QMetaObject* metaObject, const char* signature)
{
QByteArray sig = QMetaObject::normalizedSignature(signature);
int idx = metaObject->indexOfMethod(sig);
QMetaMethod meta = metaObject->method(idx);
return PythonQtMethodInfo::getCachedMethodInfo(meta);
}
void PythonQtMethodInfo::fillParameterInfo(ParameterInfo& type, const QByteArray& orgName)
{
QByteArray name = orgName;
int len = name.length();
if (len>0) {
if (strncmp(name.constData(), "const ", 6)==0) {
name = name.mid(6);
len -= 6;
type.isConst = true;
} else {
type.isConst = false;
}
bool hadPointer = false;
bool hadReference = false;
// remove * and & from the end of the string, handle & and * the same way
while (name.at(len-1) == '*') {
len--;
hadPointer = true;
}
while (name.at(len-1) == '&') {
len--;
hadReference = true;
}
if (len!=name.length()) {
name = name.left(len);
}
type.isPointer = hadPointer;
QByteArray alias = _parameterNameAliases.value(name);
if (!alias.isEmpty()) {
name = alias;
}
type.typeId = nameToType(name);
if (!type.isPointer && type.typeId == Unknown) {
type.typeId = QMetaType::type(name.constData());
if (type.typeId == QMetaType::Void) {
type.typeId = Unknown;
}
}
type.name = name;
} else {
type.typeId = QMetaType::Void;
type.isPointer = false;
type.isConst = false;
}
}
int PythonQtMethodInfo::nameToType(const char* name)
{
if (_parameterTypeDict.isEmpty()) {
// we could also use QMetaType::nameToType, but that does a string compare search
// and does not support QVariant
// QMetaType names
_parameterTypeDict.insert("long", QMetaType::Long);
_parameterTypeDict.insert("int", QMetaType::Int);
_parameterTypeDict.insert("short", QMetaType::Short);
_parameterTypeDict.insert("char", QMetaType::Char);
_parameterTypeDict.insert("ulong", QMetaType::ULong);
_parameterTypeDict.insert("unsigned long", QMetaType::ULong);
_parameterTypeDict.insert("uint", QMetaType::UInt);
_parameterTypeDict.insert("unsigned int", QMetaType::UInt);
_parameterTypeDict.insert("ushort", QMetaType::UShort);
_parameterTypeDict.insert("unsigned short", QMetaType::UShort);
_parameterTypeDict.insert("uchar", QMetaType::UChar);
_parameterTypeDict.insert("unsigned char", QMetaType::UChar);
_parameterTypeDict.insert("bool", QMetaType::Bool);
_parameterTypeDict.insert("float", QMetaType::Float);
_parameterTypeDict.insert("double", QMetaType::Double);
_parameterTypeDict.insert("qreal", QMetaType::Double);
_parameterTypeDict.insert("QChar", QMetaType::QChar);
_parameterTypeDict.insert("QByteArray", QMetaType::QByteArray);
_parameterTypeDict.insert("Q3CString", QMetaType::QByteArray);
_parameterTypeDict.insert("QString", QMetaType::QString);
_parameterTypeDict.insert("", QMetaType::Void);
_parameterTypeDict.insert("void", QMetaType::Void);
// QVariant names
_parameterTypeDict.insert("Q_LLONG", QMetaType::LongLong);
_parameterTypeDict.insert("Q_ULLONG", QMetaType::ULongLong);
_parameterTypeDict.insert("qlonglong", QMetaType::LongLong);
_parameterTypeDict.insert("qulonglong", QMetaType::ULongLong);
_parameterTypeDict.insert("qint64", QMetaType::LongLong);
_parameterTypeDict.insert("quint64", QMetaType::ULongLong);
_parameterTypeDict.insert("QIconSet", QMetaType::QIcon);
_parameterTypeDict.insert("QVariantMap", QMetaType::QVariantMap);
_parameterTypeDict.insert("QVariantList", QMetaType::QVariantList);
_parameterTypeDict.insert("QMap<QString,QVariant>", QMetaType::QVariantMap);
_parameterTypeDict.insert("QList<QVariant>", QMetaType::QVariantList);
_parameterTypeDict.insert("QStringList", QMetaType::QStringList);
_parameterTypeDict.insert("QBitArray", QMetaType::QBitArray);
_parameterTypeDict.insert("QDate", QMetaType::QDate);
_parameterTypeDict.insert("QTime", QMetaType::QTime);
_parameterTypeDict.insert("QDateTime", QMetaType::QDateTime);
_parameterTypeDict.insert("QUrl", QMetaType::QUrl);
_parameterTypeDict.insert("QLocale", QMetaType::QLocale);
_parameterTypeDict.insert("QRect", QMetaType::QRect);
_parameterTypeDict.insert("QRectf", QMetaType::QRectF);
_parameterTypeDict.insert("QSize", QMetaType::QSize);
_parameterTypeDict.insert("QSizef", QMetaType::QSizeF);
_parameterTypeDict.insert("QLine", QMetaType::QLine);
_parameterTypeDict.insert("QLinef", QMetaType::QLineF);
_parameterTypeDict.insert("QPoint", QMetaType::QPoint);
_parameterTypeDict.insert("QPointf", QMetaType::QPointF);
_parameterTypeDict.insert("QRegExp", QMetaType::QRegExp);
// _parameterTypeDict.insert("QColorGroup", QMetaType::QColorGroup);
_parameterTypeDict.insert("QFont", QMetaType::QFont);
_parameterTypeDict.insert("QPixmap", QMetaType::QPixmap);
_parameterTypeDict.insert("QBrush", QMetaType::QBrush);
_parameterTypeDict.insert("QColor", QMetaType::QColor);
_parameterTypeDict.insert("QCursor", QMetaType::QCursor);
_parameterTypeDict.insert("QPalette", QMetaType::QPalette);
_parameterTypeDict.insert("QIcon", QMetaType::QIcon);
_parameterTypeDict.insert("QImage", QMetaType::QPolygon);
_parameterTypeDict.insert("QRegion", QMetaType::QRegion);
_parameterTypeDict.insert("QBitmap", QMetaType::QBitmap);
_parameterTypeDict.insert("QSizePolicy", QMetaType::QSizePolicy);
_parameterTypeDict.insert("QKeySequence", QMetaType::QKeySequence);
_parameterTypeDict.insert("QPen", QMetaType::QPen);
_parameterTypeDict.insert("QTextLength", QMetaType::QTextLength);
_parameterTypeDict.insert("QTextFormat", QMetaType::QTextFormat);
_parameterTypeDict.insert("QMatrix", QMetaType::QMatrix);
_parameterTypeDict.insert("QVariant", PythonQtMethodInfo::Variant);
// own special types... (none so far, could be e.g. ObjectList
}
QHash<QByteArray, int>::const_iterator it = _parameterTypeDict.find(name);
if (it!=_parameterTypeDict.end()) {
return it.value();
} else {
return PythonQtMethodInfo::Unknown;
}
}
void PythonQtMethodInfo::cleanupCachedMethodInfos()
{
QHashIterator<QByteArray, PythonQtMethodInfo *> i(_cachedSignatures);
while (i.hasNext()) {
delete i.next().value();
}
}
void PythonQtMethodInfo::addParameterTypeAlias(const QByteArray& alias, const QByteArray& name)
{
_parameterNameAliases.insert(alias, name);
}
//-------------------------------------------------------------------------------------------------
void PythonQtSlotInfo::deleteOverloadsAndThis()
{
PythonQtSlotInfo* cur = this;
while(cur->nextInfo()) {
PythonQtSlotInfo* next = cur->nextInfo();
delete cur;
cur = next;
}
}
QString PythonQtSlotInfo::fullSignature()
{
bool skipFirstArg = isInstanceDecorator();
QString result = _meta.typeName();
QByteArray sig = slotName();
QList<QByteArray> names = _meta.parameterNames();
bool isStatic = false;
bool isConstructor = false;
bool isDestructor = false;
if (_type == ClassDecorator) {
if (sig.startsWith("new_")) {
sig = sig.mid(strlen("new_"));
isConstructor = true;
} else if (sig.startsWith("delete_")) {
sig = sig.mid(strlen("delete_"));
isDestructor = true;
} else if(sig.startsWith("static_")) {
isStatic = true;
sig = sig.mid(strlen("static_"));
int idx = sig.indexOf("_");
if (idx>=0) {
sig = sig.mid(idx+1);
}
}
}
result += QByteArray(" ") + sig;
result += "(";
int lastEntry = _parameters.count()-1;
for (int i = skipFirstArg?2:1; i<_parameters.count(); i++) {
if (_parameters.at(i).isConst) {
result += "const ";
}
result += _parameters.at(i).name;
if (_parameters.at(i).isPointer) {
result += "*";
}
if (!names.at(i-1).isEmpty()) {
result += " ";
result += names.at(i-1);
}
if (i!=lastEntry) {
result += ", ";
}
}
result += ")";
if (isStatic) {
result = QString("static ") + result;
}
if (isConstructor) {
// result = QString("constructor ") + result;
}
if (isDestructor) {
result = QString("~") + result;
}
return result;
}
QByteArray PythonQtSlotInfo::slotName()
{
QByteArray sig(_meta.signature());
int idx = sig.indexOf('(');
sig = sig.left(idx);
return sig;
}