shellimplgenerator.cpp
332 lines
| 11.9 KiB
| text/x-c
|
CppLexer
/ generator / shellimplgenerator.cpp
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r10 | /**************************************************************************** | ||
| ** | ||||
|
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r87 | ** Copyright (C) 2008-2009 Nokia Corporation and/or its subsidiary(-ies). | ||
| ** All rights reserved. | ||||
| ** Contact: Nokia Corporation (qt-info@nokia.com) | ||||
|
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r10 | ** | ||
|
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r87 | ** This file is part of the Qt Script Generator project on Qt Labs. | ||
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r10 | ** | ||
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r87 | ** $QT_BEGIN_LICENSE:LGPL$ | ||
| ** 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. | ||||
|
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r10 | ** | ||
|
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r87 | ** 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. | ||||
|
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r10 | ** | ||
|
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r87 | ** 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. | ||||
| ** | ||||
| ** | ||||
| ** | ||||
| ** | ||||
| ** | ||||
| ** | ||||
| ** | ||||
| ** | ||||
| ** $QT_END_LICENSE$ | ||||
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r10 | ** | ||
| ****************************************************************************/ | ||||
| #include "shellimplgenerator.h" | ||||
| #include "reporthandler.h" | ||||
| #include "fileout.h" | ||||
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r108 | #include <iostream> | ||
|
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r10 | |||
| extern void declareFunctionMetaTypes(QTextStream &stream, | ||||
| const AbstractMetaFunctionList &functions, | ||||
| QSet<QString> ®isteredTypeNames); | ||||
| QString ShellImplGenerator::fileNameForClass(const AbstractMetaClass *meta_class) const | ||||
| { | ||||
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r24 | return QString("PythonQtWrapper_%1.cpp").arg(meta_class->name()); | ||
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r10 | } | ||
| static bool include_less_than(const Include &a, const Include &b) | ||||
| { | ||||
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r24 | return a.name < b.name; | ||
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r10 | } | ||
| static void writeHelperCode(QTextStream &s, const AbstractMetaClass *) | ||||
| { | ||||
| } | ||||
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r108 | |||
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r10 | void ShellImplGenerator::write(QTextStream &s, const AbstractMetaClass *meta_class) | ||
| { | ||||
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r93 | QString builtIn = ShellGenerator::isBuiltIn(meta_class->name())?"_builtin":""; | ||
| QString pro_file_name = meta_class->package().replace(".", "_") + builtIn + "/" + meta_class->package().replace(".", "_") + builtIn + ".pri"; | ||||
| priGenerator->addSource(pro_file_name, fileNameForClass(meta_class)); | ||||
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r108 | |||
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r24 | s << "#include \"PythonQtWrapper_" << meta_class->name() << ".h\"" << endl << endl; | ||
| s << "#include <PythonQtSignalReceiver.h>" << endl; | ||||
| s << "#include <PythonQtMethodInfo.h>" << endl; | ||||
| s << "#include <PythonQtConversion.h>" << endl; | ||||
| //if (!meta_class->generateShellClass()) | ||||
| // return; | ||||
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r10 | |||
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r24 | IncludeList list = meta_class->typeEntry()->extraIncludes(); | ||
| qSort(list.begin(), list.end()); | ||||
| foreach (const Include &inc, list) { | ||||
| ShellGenerator::writeInclude(s, inc); | ||||
| } | ||||
| s << endl; | ||||
| writeHelperCode(s, meta_class); | ||||
| // find constructors | ||||
| AbstractMetaFunctionList ctors; | ||||
| ctors = meta_class->queryFunctions(AbstractMetaClass::Constructors | ||||
| | AbstractMetaClass::WasVisible | ||||
| | AbstractMetaClass::NotRemovedFromTargetLang); | ||||
| // find member functions | ||||
| AbstractMetaFunctionList functions = getFunctionsToWrap(meta_class); | ||||
| // write metatype declarations | ||||
| { | ||||
| // QSet<QString> registeredTypeNames = m_qmetatype_declared_typenames; | ||||
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r10 | // declareFunctionMetaTypes(s, functions, registeredTypeNames); | ||
| // s << endl; | ||||
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r24 | } | ||
|
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r192 | if (meta_class->qualifiedCppName().contains("Ssl")) { | ||
| s << "#ifndef QT_NO_OPENSSL" << endl; | ||||
| } | ||||
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r24 | |||
| if (meta_class->generateShellClass()) { | ||||
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r178 | |||
| s << shellClassName(meta_class) << "::~" << shellClassName(meta_class) << "() {" << endl; | ||||
| s << " PythonQtPrivate* priv = PythonQt::priv();" << endl; | ||||
| s << " if (priv) { priv->shellClassDeleted(this); }" << endl; | ||||
| s << "}" << endl; | ||||
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r24 | AbstractMetaFunctionList virtualsForShell = getVirtualFunctionsForShell(meta_class); | ||
| foreach (const AbstractMetaFunction *fun, virtualsForShell) { | ||||
| bool hasReturnValue = (fun->type()); | ||||
| writeFunctionSignature(s, fun, meta_class, QString(), | ||||
| Option(OriginalName | ShowStatic | UnderscoreSpaces), | ||||
| "PythonQtShell_"); | ||||
| s << endl << "{" << endl; | ||||
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r66 | Option typeOptions = Option(OriginalName | UnderscoreSpaces | SkipName); | ||
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r24 | AbstractMetaArgumentList args = fun->arguments(); | ||
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r204 | s << "if (_wrapper && (_wrapper->ob_refcnt > 0)) {" << endl; | ||
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r199 | s << " static PyObject* name = PyString_FromString(\"" << fun->name() << "\");" << endl; | ||
| s << " PyObject* obj = PyBaseObject_Type.tp_getattro((PyObject*)_wrapper, name);" << endl; | ||||
| s << " if (obj) {" << endl; | ||||
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r66 | s << " static const char* argumentList[] ={\""; | ||
| if (hasReturnValue) { | ||||
| // write the arguments, return type first | ||||
| writeTypeInfo(s, fun->type(), typeOptions); | ||||
| } | ||||
| s << "\""; | ||||
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r24 | for (int i = 0; i < args.size(); ++i) { | ||
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r66 | s << " , \""; | ||
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r24 | writeTypeInfo(s, args.at(i)->type(), typeOptions); | ||
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r66 | s << "\""; | ||
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r24 | } | ||
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r66 | s << "};" << endl; | ||
| s << " static const PythonQtMethodInfo* methodInfo = PythonQtMethodInfo::getCachedMethodInfoFromArgumentList(" << QString::number(args.size()+1) << ", argumentList);" << endl; | ||||
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r24 | |||
| if (hasReturnValue) { | ||||
| s << " "; | ||||
| writeTypeInfo(s, fun->type(), typeOptions); | ||||
| s << " returnValue;" << endl; | ||||
| // TODO: POD init to default is missing... | ||||
| } | ||||
| s << " void* args[" << QString::number(args.size()+1) << "] = {NULL"; | ||||
| for (int i = 0; i < args.size(); ++i) { | ||||
| s << ", (void*)&" << args.at(i)->argumentName(); | ||||
| } | ||||
| s << "};" << endl; | ||||
| s << " PyObject* result = PythonQtSignalTarget::call(obj, methodInfo, args, true);" << endl; | ||||
| if (hasReturnValue) { | ||||
| s << " if (result) {" << endl; | ||||
| s << " args[0] = PythonQtConv::ConvertPythonToQt(methodInfo->parameters().at(0), result, false, NULL, &returnValue);" << endl; | ||||
| s << " if (args[0]!=&returnValue) {" << endl; | ||||
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r66 | s << " if (args[0]==NULL) {" << endl; | ||
| s << " PythonQt::priv()->handleVirtualOverloadReturnError(\"" << fun->name() << "\", methodInfo, result);" << endl; | ||||
| s << " } else {" << endl; | ||||
| s << " returnValue = *(("; | ||||
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r24 | writeTypeInfo(s, fun->type(), typeOptions); | ||
| s << "*)args[0]);" << endl; | ||||
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r66 | s << " }" << endl; | ||
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r24 | s << " }" << endl; | ||
| s << " }" << endl; | ||||
| } | ||||
| s << " if (result) { Py_DECREF(result); } " << endl; | ||||
| s << " Py_DECREF(obj);" << endl; | ||||
| if (hasReturnValue) { | ||||
| s << " return returnValue;" << endl; | ||||
| } else { | ||||
| s << " return;" << endl; | ||||
| } | ||||
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r199 | s << " } else {" << endl; | ||
| s << " PyErr_Clear();" << endl; | ||||
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r24 | s << " }" << endl; | ||
| s << "}" << endl; | ||||
| s << " "; | ||||
| if (fun->isAbstract()) { | ||||
| if (fun->type()) { | ||||
| // return empty default object | ||||
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r118 | s << "return "; | ||
| if (fun->type()->indirections()>0) { | ||||
| s << "0;"; | ||||
| } else { | ||||
| writeTypeInfo(s, fun->type(), typeOptions); | ||||
| s << "();"; | ||||
| } | ||||
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r24 | } | ||
| } else { | ||||
| 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 << ");"; | ||||
| } | ||||
| s << endl << "}" << endl; | ||||
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r10 | } | ||
|
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r24 | } | ||
| if (meta_class->generateShellClass() || !meta_class->isAbstract()) { | ||||
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r10 | |||
| // write constructors | ||||
| foreach (const AbstractMetaFunction *ctor, ctors) { | ||||
| if (!ctor->isPublic() || ctor->isAbstract()) { continue; } | ||||
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r24 | |||
| s << meta_class->qualifiedCppName() << "* "; | ||||
| s << "PythonQtWrapper_" << meta_class->name() << "::"; | ||||
| writeFunctionSignature(s, ctor, 0, "new_", Option(OriginalName | ShowStatic)); | ||||
| s << endl; | ||||
| s << "{ " << endl; | ||||
| s << "return new " << (meta_class->generateShellClass()?shellClassName(meta_class):meta_class->qualifiedCppName()) << "("; | ||||
| AbstractMetaArgumentList args = ctor->arguments(); | ||||
| for (int i = 0; i < args.size(); ++i) { | ||||
| if (i > 0) | ||||
| s << ", "; | ||||
| s << args.at(i)->argumentName(); | ||||
| } | ||||
| s << ");" << " }" << endl << endl; | ||||
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r10 | } | ||
| } | ||||
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r24 | |||
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r29 | QString wrappedObject = " (*theWrappedObject)"; | ||
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r24 | // write member functions | ||
| for (int i = 0; i < functions.size(); ++i) { | ||||
| AbstractMetaFunction *fun = functions.at(i); | ||||
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r175 | bool needsWrapping = (!fun->isSlot() || fun->isVirtual()); | ||
| if (!needsWrapping) { | ||||
| continue; | ||||
| } | ||||
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r24 | writeFunctionSignature(s, fun, meta_class, QString(), | ||
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r70 | Option(ConvertReferenceToPtr | FirstArgIsWrappedObject | OriginalName | ShowStatic | UnderscoreSpaces), | ||
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r24 | "PythonQtWrapper_"); | ||
| s << endl << "{" << endl; | ||||
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r29 | s << " "; | ||
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r24 | if (ShellGenerator::isSpecialStreamingOperator(fun)) { | ||
| s << fun->arguments().at(0)->argumentName(); | ||||
| if (fun->originalName().startsWith("operator>>")) { | ||||
| s << " >> "; | ||||
| } else { | ||||
| s << " << "; | ||||
| } | ||||
| s << wrappedObject; | ||||
| } else { | ||||
| QString scriptFunctionName = fun->originalName(); | ||||
| AbstractMetaArgumentList args = fun->arguments(); | ||||
| // call the C++ implementation | ||||
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r70 | if (fun->type()) { | ||
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r24 | s << "return "; | ||
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r70 | // call the C++ implementation | ||
| if (fun->type()->isReference()) { | ||||
| s << "&"; | ||||
| } | ||||
| } | ||||
| s << "("; | ||||
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r24 | if (scriptFunctionName.startsWith("operator>>")) { | ||
| s << wrappedObject << " >>" << args.at(0)->argumentName(); | ||||
| } else if (scriptFunctionName.startsWith("operator<<")) { | ||||
| s << wrappedObject << " <<" << args.at(0)->argumentName(); | ||||
| } else if (scriptFunctionName.startsWith("operator[]")) { | ||||
| s << wrappedObject << "[" << args.at(0)->argumentName() << "]"; | ||||
| } else if (scriptFunctionName.startsWith("operator") && args.size()==1) { | ||||
| QString op = scriptFunctionName.mid(8); | ||||
| s << wrappedObject << op << " " << args.at(0)->argumentName(); | ||||
| } else { | ||||
| if (fun->isStatic()) { | ||||
| s << meta_class->qualifiedCppName() << "::"; | ||||
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r10 | } else { | ||
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r29 | if (!fun->isPublic() || fun->isVirtual()) { | ||
| s << " ((" << promoterClassName(meta_class) << "*)theWrappedObject)->promoted_"; | ||||
| } else { | ||||
| s << " theWrappedObject->"; | ||||
| } | ||||
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r10 | } | ||
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r29 | s << fun->originalName() << "("; | ||
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r24 | for (int i = 0; i < args.size(); ++i) { | ||
| if (i > 0) | ||||
| s << ", "; | ||||
| s << args.at(i)->argumentName(); | ||||
| } | ||||
| s << ")"; | ||||
| } | ||||
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r70 | s << ")"; | ||
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r10 | } | ||
|
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r24 | s << ";" << endl; | ||
| s << "}" << endl << endl; | ||||
| } | ||||
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r70 | |||
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r115 | if (meta_class->hasDefaultToStringFunction()) { | ||
| s << "QString PythonQtWrapper_" << meta_class->name() << "::py_toString(" << meta_class->qualifiedCppName() << "* obj) { return obj->toString(); }" << endl; | ||||
| } else if (meta_class->hasToStringCapability()) { | ||||
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r70 | FunctionModelItem fun = meta_class->hasToStringCapability(); | ||
| int indirections = fun->arguments().at(1)->type().indirections(); | ||||
| QString deref = QLatin1String(indirections == 0 ? "*" : ""); | ||||
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r115 | s << "QString PythonQtWrapper_" << meta_class->name() << "::py_toString(" << meta_class->qualifiedCppName() << "* obj) {" << endl; | ||
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r70 | s << " QString result;" << endl; | ||
| s << " QDebug d(&result);" << endl; | ||||
| s << " d << " << deref << "obj;" << endl; | ||||
| s << " return result;" << endl; | ||||
| s << "}" << endl << endl; | ||||
| } | ||||
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r124 | |||
| writeInjectedCode(s, meta_class); | ||||
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r192 | if (meta_class->qualifiedCppName().contains("Ssl")) { | ||
| s << "#endif" << endl; | ||||
| } | ||||
|
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r10 | } | ||
| void ShellImplGenerator::writeInjectedCode(QTextStream &s, const AbstractMetaClass *meta_class) | ||||
| { | ||||
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r24 | CodeSnipList code_snips = meta_class->typeEntry()->codeSnips(); | ||
| foreach (const CodeSnip &cs, code_snips) { | ||||
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r124 | if (cs.language == TypeSystem::PyWrapperCode) { | ||
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r24 | s << cs.code() << endl; | ||
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r10 | } | ||
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r24 | } | ||
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r10 | } | ||