##// END OF EJS Templates
improved code generation for virtual functions to support overriding getter slots that are named as properties...
improved code generation for virtual functions to support overriding getter slots that are named as properties git-svn-id: svn://svn.code.sf.net/p/pythonqt/code/trunk@240 ea8d5007-eb21-0410-b261-ccb3ea6e24a9

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shellheadergenerator.cpp
317 lines | 11.4 KiB | text/x-c | CppLexer
/ generator / shellheadergenerator.cpp
/****************************************************************************
**
** Copyright (C) 2008-2009 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the Qt Script Generator project on Qt Labs.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the Technology Preview License Agreement accompanying
** this package.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
**
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "shellheadergenerator.h"
#include "fileout.h"
#include <QtCore/QDir>
#include <qdebug.h>
QString ShellHeaderGenerator::fileNameForClass(const AbstractMetaClass *meta_class) const
{
return QString("PythonQtWrapper_%1.h").arg(meta_class->name());
}
void ShellHeaderGenerator::writeFieldAccessors(QTextStream &s, const AbstractMetaField *field)
{
const AbstractMetaFunction *setter = field->setter();
const AbstractMetaFunction *getter = field->getter();
// static fields are not supported (yet?)
if (setter->isStatic()) return;
// Uuid data4 did not work (TODO: move to typesystem...(
if (field->enclosingClass()->name()=="QUuid" && setter->name()=="data4") return;
if (field->enclosingClass()->name()=="QIPv6Address") return;
if (!field->type()->isConstant()) {
writeFunctionSignature(s, setter, 0, QString(),
Option(ConvertReferenceToPtr | FirstArgIsWrappedObject| IncludeDefaultExpression | ShowStatic | UnderscoreSpaces));
s << "{ theWrappedObject->" << field->name() << " = " << setter->arguments()[0]->argumentName() << "; }\n";
}
writeFunctionSignature(s, getter, 0, QString(),
Option(ConvertReferenceToPtr | FirstArgIsWrappedObject| IncludeDefaultExpression | OriginalName | ShowStatic | UnderscoreSpaces));
s << "{ return theWrappedObject->" << field->name() << "; }\n";
}
void ShellHeaderGenerator::write(QTextStream &s, const AbstractMetaClass *meta_class)
{
QString builtIn = ShellGenerator::isBuiltIn(meta_class->name())?"_builtin":"";
QString pro_file_name = meta_class->package().replace(".", "_") + builtIn + "/" + meta_class->package().replace(".", "_") + builtIn + ".pri";
priGenerator->addHeader(pro_file_name, fileNameForClass(meta_class));
setupGenerator->addClass(meta_class->package().replace(".", "_") + builtIn, meta_class);
QString include_block = "PYTHONQTWRAPPER_" + meta_class->name().toUpper() + "_H";
s << "#ifndef " << include_block << endl
<< "#define " << include_block << endl << endl;
Include inc = meta_class->typeEntry()->include();
ShellGenerator::writeInclude(s, inc);
s << "#include <QObject>" << endl << endl;
s << "#include <PythonQt.h>" << endl << endl;
IncludeList list = meta_class->typeEntry()->extraIncludes();
qSort(list.begin(), list.end());
foreach (const Include &inc, list) {
ShellGenerator::writeInclude(s, inc);
}
s << endl;
AbstractMetaFunctionList ctors = meta_class->queryFunctions(AbstractMetaClass::Constructors
| AbstractMetaClass::WasVisible
| AbstractMetaClass::NotRemovedFromTargetLang);
if (meta_class->qualifiedCppName().contains("Ssl")) {
s << "#ifndef QT_NO_OPENSSL" << endl;
}
// Shell-------------------------------------------------------------------
if (meta_class->generateShellClass()) {
AbstractMetaFunctionList virtualsForShell = getVirtualFunctionsForShell(meta_class);
s << "class " << shellClassName(meta_class)
<< " : public " << meta_class->qualifiedCppName() << endl << "{" << endl;
s << "public:" << endl;
foreach(AbstractMetaFunction* fun, ctors) {
s << " ";
writeFunctionSignature(s, fun, 0,"PythonQtShell_",
Option(IncludeDefaultExpression | OriginalName | ShowStatic | UnderscoreSpaces));
s << ":" << meta_class->qualifiedCppName() << "(";
QString scriptFunctionName = fun->originalName();
AbstractMetaArgumentList args = fun->arguments();
for (int i = 0; i < args.size(); ++i) {
if (i > 0)
s << ", ";
s << args.at(i)->argumentName();
}
s << "),_wrapper(NULL) {};" << endl;
}
s << endl;
s << " ~" << shellClassName(meta_class) << "();" << endl;
foreach(AbstractMetaFunction* fun, virtualsForShell) {
s << "virtual ";
writeFunctionSignature(s, fun, 0, QString(),
Option(IncludeDefaultExpression | OriginalName | ShowStatic | UnderscoreSpaces));
s << ";" << endl;
}
s << endl;
s << " PythonQtInstanceWrapper* _wrapper; " << endl;
s << "};" << endl << endl;
}
// Promoter-------------------------------------------------------------------
AbstractMetaFunctionList promoteFunctions = getProtectedFunctionsThatNeedPromotion(meta_class);
if (!promoteFunctions.isEmpty()) {
s << "class " << promoterClassName(meta_class)
<< " : public " << meta_class->qualifiedCppName() << endl << "{ public:" << endl;
foreach(AbstractMetaFunction* fun, promoteFunctions) {
s << "inline ";
writeFunctionSignature(s, fun, 0, "promoted_",
Option(IncludeDefaultExpression | OriginalName | ShowStatic | UnderscoreSpaces));
s << " { ";
QString scriptFunctionName = fun->originalName();
AbstractMetaArgumentList args = fun->arguments();
if (fun->type())
s << "return ";
s << meta_class->qualifiedCppName() << "::";
s << fun->originalName() << "(";
for (int i = 0; i < args.size(); ++i) {
if (i > 0)
s << ", ";
s << args.at(i)->argumentName();
}
s << "); }" << endl;
}
s << "};" << endl << endl;
}
// Wrapper-------------------------------------------------------------------
s << "class " << wrapperClassName(meta_class)
<< " : public QObject" << endl
<< "{ Q_OBJECT" << endl;
s << "public:" << endl;
AbstractMetaEnumList enums1 = meta_class->enums();
AbstractMetaEnumList enums;
QList<FlagsTypeEntry*> flags;
foreach(AbstractMetaEnum* enum1, enums1) {
// catch gadgets and enums that are not exported on QObjects...
if (enum1->wasPublic() && (!meta_class->isQObject() || !enum1->hasQEnumsDeclaration())) {
enums << enum1;
if (enum1->typeEntry()->flags()) {
flags << enum1->typeEntry()->flags();
}
}
}
if (enums.count()) {
s << "Q_ENUMS(";
foreach(AbstractMetaEnum* enum1, enums) {
s << enum1->name() << " ";
}
s << ")" << endl;
if (flags.count()) {
s << "Q_FLAGS(";
foreach(FlagsTypeEntry* flag1, flags) {
QString origName = flag1->originalName();
int idx = origName.lastIndexOf("::");
if (idx!= -1) {
origName = origName.mid(idx+2);
}
s << origName << " ";
}
s << ")" << endl;
}
foreach(AbstractMetaEnum* enum1, enums) {
s << "enum " << enum1->name() << "{" << endl;
bool first = true;
foreach(AbstractMetaEnumValue* value, enum1->values()) {
if (first) { first = false; }
else { s << ", "; }
s << " " << value->name() << " = " << meta_class->qualifiedCppName() << "::" << value->name();
}
s << "};" << endl;
}
if (flags.count()) {
foreach(AbstractMetaEnum* enum1, enums) {
if (enum1->typeEntry()->flags()) {
QString origName = enum1->typeEntry()->flags()->originalName();
int idx = origName.lastIndexOf("::");
if (idx!= -1) {
origName = origName.mid(idx+2);
}
s << "Q_DECLARE_FLAGS("<< origName << ", " << enum1->name() <<")"<<endl;
}
}
}
}
s << "public slots:" << endl;
if (meta_class->generateShellClass() || !meta_class->isAbstract()) {
bool copyConstructorSeen = false;
bool defaultConstructorSeen = false;
foreach (const AbstractMetaFunction *fun, ctors) {
if (!fun->isPublic() || fun->isAbstract()) { continue; }
s << meta_class->qualifiedCppName() << "* ";
writeFunctionSignature(s, fun, 0, "new_",
Option(IncludeDefaultExpression | OriginalName | ShowStatic));
s << ";" << endl;
if (fun->arguments().size()==1 && meta_class->qualifiedCppName() == fun->arguments().at(0)->type()->typeEntry()->qualifiedCppName()) {
copyConstructorSeen = true;
}
if (fun->arguments().size()==0) {
defaultConstructorSeen = true;
}
}
if (meta_class->typeEntry()->isValue()
&& !copyConstructorSeen && defaultConstructorSeen) {
QString className = meta_class->generateShellClass()?shellClassName(meta_class):meta_class->qualifiedCppName();
s << meta_class->qualifiedCppName() << "* new_" << meta_class->name() << "(const " << meta_class->qualifiedCppName() << "& other) {" << endl;
s << className << "* a = new " << className << "();" << endl;
s << "*((" << meta_class->qualifiedCppName() << "*)a) = other;" << endl;
s << "return a; }" << endl;
}
}
if (meta_class->hasPublicDestructor() && !meta_class->isNamespace()) {
s << "void delete_" << meta_class->name() << "(" << meta_class->qualifiedCppName() << "* obj) { delete obj; } ";
s << endl;
}
AbstractMetaFunctionList functions = getFunctionsToWrap(meta_class);
foreach (const AbstractMetaFunction *function, functions) {
if (!function->isSlot() || function->isVirtual()) {
s << " ";
writeFunctionSignature(s, function, 0, QString(),
Option(ConvertReferenceToPtr | FirstArgIsWrappedObject| IncludeDefaultExpression | OriginalName | ShowStatic | UnderscoreSpaces));
s << ";" << endl;
}
}
if (meta_class->hasDefaultToStringFunction() || meta_class->hasToStringCapability()) {
s << " QString py_toString(" << meta_class->qualifiedCppName() << "*);" << endl;
}
if (meta_class->hasDefaultIsNull()) {
s << " bool __nonzero__(" << meta_class->qualifiedCppName() << "* obj) { return !obj->isNull(); }" << endl;
}
// Field accessors
foreach (const AbstractMetaField *field, meta_class->fields()) {
if (field->isPublic()) {
writeFieldAccessors(s, field);
}
}
writeInjectedCode(s, meta_class);
s << "};" << endl << endl;
if (meta_class->qualifiedCppName().contains("Ssl")) {
s << "#endif" << endl << endl;
}
s << "#endif // " << include_block << endl;
}
void ShellHeaderGenerator::writeInjectedCode(QTextStream &s, const AbstractMetaClass *meta_class)
{
CodeSnipList code_snips = meta_class->typeEntry()->codeSnips();
foreach (const CodeSnip &cs, code_snips) {
if (cs.language == TypeSystem::PyWrapperDeclaration) {
s << cs.code() << endl;
}
}
}