diff options
Diffstat (limited to 'sources/shiboken2/generator/shiboken2')
| -rw-r--r-- | sources/shiboken2/generator/shiboken2/CMakeLists.txt | 28 | ||||
| -rw-r--r-- | sources/shiboken2/generator/shiboken2/cppgenerator.cpp | 5755 | ||||
| -rw-r--r-- | sources/shiboken2/generator/shiboken2/cppgenerator.h | 370 | ||||
| -rw-r--r-- | sources/shiboken2/generator/shiboken2/headergenerator.cpp | 569 | ||||
| -rw-r--r-- | sources/shiboken2/generator/shiboken2/headergenerator.h | 67 | ||||
| -rw-r--r-- | sources/shiboken2/generator/shiboken2/overloaddata.cpp | 1092 | ||||
| -rw-r--r-- | sources/shiboken2/generator/shiboken2/overloaddata.h | 163 | ||||
| -rw-r--r-- | sources/shiboken2/generator/shiboken2/shibokengenerator.cpp | 2728 | ||||
| -rw-r--r-- | sources/shiboken2/generator/shiboken2/shibokengenerator.h | 556 |
9 files changed, 11328 insertions, 0 deletions
diff --git a/sources/shiboken2/generator/shiboken2/CMakeLists.txt b/sources/shiboken2/generator/shiboken2/CMakeLists.txt new file mode 100644 index 000000000..5c1b612dd --- /dev/null +++ b/sources/shiboken2/generator/shiboken2/CMakeLists.txt @@ -0,0 +1,28 @@ +project(shibokengenerator) + +set(shiboken_SRC +../generator.cpp +cppgenerator.cpp +headergenerator.cpp +overloaddata.cpp +shibokengenerator.cpp +main.cpp +) + +include_directories(${generators_SOURCE_DIR} + ${CMAKE_CURRENT_SOURCE_DIR} + ${CMAKE_CURRENT_BINARY_DIR} + ${APIEXTRACTOR_INCLUDE_DIR} + ${Qt5Core_INCLUDE_DIRS} + ) + +add_executable(shiboken2 ${shiboken_SRC}) +set_target_properties(shiboken2 PROPERTIES OUTPUT_NAME shiboken2${shiboken_SUFFIX}) +target_link_libraries(shiboken2 + ${APIEXTRACTOR_LIBRARY} + ${Qt5Core_LIBRARIES} + ) + +configure_file(shibokenconfig.h.in "${CMAKE_CURRENT_BINARY_DIR}/shibokenconfig.h" @ONLY) + +install(TARGETS shiboken2 DESTINATION bin) diff --git a/sources/shiboken2/generator/shiboken2/cppgenerator.cpp b/sources/shiboken2/generator/shiboken2/cppgenerator.cpp new file mode 100644 index 000000000..6aa2c83df --- /dev/null +++ b/sources/shiboken2/generator/shiboken2/cppgenerator.cpp @@ -0,0 +1,5755 @@ +/**************************************************************************** +** +** Copyright (C) 2016 The Qt Company Ltd. +** Contact: https://www.qt.io/licensing/ +** +** This file is part of PySide2. +** +** $QT_BEGIN_LICENSE:GPL-EXCEPT$ +** Commercial License Usage +** Licensees holding valid commercial Qt licenses may use this file in +** accordance with the commercial license agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and The Qt Company. For licensing terms +** and conditions see https://www.qt.io/terms-conditions. For further +** information use the contact form at https://www.qt.io/contact-us. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 3 as published by the Free Software +** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT +** included in the packaging of this file. Please review the following +** information to ensure the GNU General Public License requirements will +** be met: https://www.gnu.org/licenses/gpl-3.0.html. +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include <memory> + +#include "cppgenerator.h" +#include "overloaddata.h" +#include <abstractmetalang.h> +#include <reporthandler.h> +#include <typedatabase.h> + +#include <QtCore/QDir> +#include <QtCore/QMetaObject> +#include <QtCore/QRegularExpression> +#include <QtCore/QTextStream> +#include <QtCore/QDebug> +#include <QMetaType> + +QHash<QString, QString> CppGenerator::m_nbFuncs = QHash<QString, QString>(); +QHash<QString, QString> CppGenerator::m_sqFuncs = QHash<QString, QString>(); +QHash<QString, QString> CppGenerator::m_mpFuncs = QHash<QString, QString>(); +QString CppGenerator::m_currentErrorCode(QLatin1String("0")); + +// utility functions +inline AbstractMetaType* getTypeWithoutContainer(AbstractMetaType* arg) +{ + if (arg && arg->typeEntry()->isContainer()) { + AbstractMetaTypeList lst = arg->instantiations(); + // only support containers with 1 type + if (lst.size() == 1) + return lst[0]; + } + return arg; +} + +CppGenerator::CppGenerator() +{ + // Number protocol structure members names + m_nbFuncs.insert(QLatin1String("__add__"), QLatin1String("nb_add")); + m_nbFuncs.insert(QLatin1String("__sub__"), QLatin1String("nb_subtract")); + m_nbFuncs.insert(QLatin1String("__mul__"), QLatin1String("nb_multiply")); + m_nbFuncs.insert(QLatin1String("__div__"), QLatin1String("nb_divide")); + m_nbFuncs.insert(QLatin1String("__mod__"), QLatin1String("nb_remainder")); + m_nbFuncs.insert(QLatin1String("__neg__"), QLatin1String("nb_negative")); + m_nbFuncs.insert(QLatin1String("__pos__"), QLatin1String("nb_positive")); + m_nbFuncs.insert(QLatin1String("__invert__"), QLatin1String("nb_invert")); + m_nbFuncs.insert(QLatin1String("__lshift__"), QLatin1String("nb_lshift")); + m_nbFuncs.insert(QLatin1String("__rshift__"), QLatin1String("nb_rshift")); + m_nbFuncs.insert(QLatin1String("__and__"), QLatin1String("nb_and")); + m_nbFuncs.insert(QLatin1String("__xor__"), QLatin1String("nb_xor")); + m_nbFuncs.insert(QLatin1String("__or__"), QLatin1String("nb_or")); + m_nbFuncs.insert(QLatin1String("__iadd__"), QLatin1String("nb_inplace_add")); + m_nbFuncs.insert(QLatin1String("__isub__"), QLatin1String("nb_inplace_subtract")); + m_nbFuncs.insert(QLatin1String("__imul__"), QLatin1String("nb_inplace_multiply")); + m_nbFuncs.insert(QLatin1String("__idiv__"), QLatin1String("nb_inplace_divide")); + m_nbFuncs.insert(QLatin1String("__imod__"), QLatin1String("nb_inplace_remainder")); + m_nbFuncs.insert(QLatin1String("__ilshift__"), QLatin1String("nb_inplace_lshift")); + m_nbFuncs.insert(QLatin1String("__irshift__"), QLatin1String("nb_inplace_rshift")); + m_nbFuncs.insert(QLatin1String("__iand__"), QLatin1String("nb_inplace_and")); + m_nbFuncs.insert(QLatin1String("__ixor__"), QLatin1String("nb_inplace_xor")); + m_nbFuncs.insert(QLatin1String("__ior__"), QLatin1String("nb_inplace_or")); + m_nbFuncs.insert(QLatin1String("bool"), QLatin1String("nb_nonzero")); + + // sequence protocol functions + typedef QPair<QString, QString> StrPair; + m_sequenceProtocol.insert(QLatin1String("__len__"), + StrPair(QLatin1String("PyObject* " PYTHON_SELF_VAR), QLatin1String("Py_ssize_t"))); + m_sequenceProtocol.insert(QLatin1String("__getitem__"), + StrPair(QLatin1String("PyObject* " PYTHON_SELF_VAR ", Py_ssize_t _i"), + QLatin1String("PyObject*"))); + m_sequenceProtocol.insert(QLatin1String("__setitem__"), + StrPair(QLatin1String("PyObject* " PYTHON_SELF_VAR ", Py_ssize_t _i, PyObject* _value"), + QLatin1String("int"))); + m_sequenceProtocol.insert(QLatin1String("__getslice__"), + StrPair(QLatin1String("PyObject* " PYTHON_SELF_VAR ", Py_ssize_t _i1, Py_ssize_t _i2"), + QLatin1String("PyObject*"))); + m_sequenceProtocol.insert(QLatin1String("__setslice__"), + StrPair(QLatin1String("PyObject* " PYTHON_SELF_VAR ", Py_ssize_t _i1, Py_ssize_t _i2, PyObject* _value"), + QLatin1String("int"))); + m_sequenceProtocol.insert(QLatin1String("__contains__"), + StrPair(QLatin1String("PyObject* " PYTHON_SELF_VAR ", PyObject* _value"), + QLatin1String("int"))); + m_sequenceProtocol.insert(QLatin1String("__concat__"), + StrPair(QLatin1String("PyObject* " PYTHON_SELF_VAR ", PyObject* _other"), + QLatin1String("PyObject*"))); + + // Sequence protocol structure members names + m_sqFuncs.insert(QLatin1String("__concat__"), QLatin1String("sq_concat")); + m_sqFuncs.insert(QLatin1String("__contains__"), QLatin1String("sq_contains")); + m_sqFuncs.insert(QLatin1String("__getitem__"), QLatin1String("sq_item")); + m_sqFuncs.insert(QLatin1String("__getslice__"), QLatin1String("sq_slice")); + m_sqFuncs.insert(QLatin1String("__len__"), QLatin1String("sq_length")); + m_sqFuncs.insert(QLatin1String("__setitem__"), QLatin1String("sq_ass_item")); + m_sqFuncs.insert(QLatin1String("__setslice__"), QLatin1String("sq_ass_slice")); + + // mapping protocol function + m_mappingProtocol.insert(QLatin1String("__mlen__"), + StrPair(QLatin1String("PyObject* " PYTHON_SELF_VAR), + QLatin1String("Py_ssize_t"))); + m_mappingProtocol.insert(QLatin1String("__mgetitem__"), + StrPair(QLatin1String("PyObject* " PYTHON_SELF_VAR ", PyObject* _key"), + QLatin1String("PyObject*"))); + m_mappingProtocol.insert(QLatin1String("__msetitem__"), + StrPair(QLatin1String("PyObject* " PYTHON_SELF_VAR ", PyObject* _key, PyObject* _value"), + QLatin1String("int"))); + + // Sequence protocol structure members names + m_mpFuncs.insert(QLatin1String("__mlen__"), QLatin1String("mp_length")); + m_mpFuncs.insert(QLatin1String("__mgetitem__"), QLatin1String("mp_subscript")); + m_mpFuncs.insert(QLatin1String("__msetitem__"), QLatin1String("mp_ass_subscript")); +} + +QString CppGenerator::fileNamePrefix() const +{ + return QLatin1String("_wrapper.cpp"); +} + +QString CppGenerator::fileNameForContext(GeneratorContext &context) const +{ + const AbstractMetaClass *metaClass = context.metaClass(); + if (!context.forSmartPointer()) { + QString fileNameBase = metaClass->qualifiedCppName().toLower(); + fileNameBase.replace(QLatin1String("::"), QLatin1String("_")); + return fileNameBase + fileNamePrefix(); + } else { + const AbstractMetaType *smartPointerType = context.preciseType(); + QString fileNameBase = getFileNameBaseForSmartPointer(smartPointerType, metaClass); + return fileNameBase + fileNamePrefix(); + } +} + +QVector<AbstractMetaFunctionList> CppGenerator::filterGroupedOperatorFunctions(const AbstractMetaClass* metaClass, + uint queryIn) +{ + // ( func_name, num_args ) => func_list + typedef QMap<QPair<QString, int >, AbstractMetaFunctionList> ResultMap; + ResultMap results; + const AbstractMetaClass::OperatorQueryOptions query(queryIn); + const AbstractMetaFunctionList &funcs = metaClass->operatorOverloads(query); + for (AbstractMetaFunction *func : funcs) { + if (func->isModifiedRemoved() + || func->usesRValueReferences() + || func->name() == QLatin1String("operator[]") + || func->name() == QLatin1String("operator->") + || func->name() == QLatin1String("operator!")) { + continue; + } + int args; + if (func->isComparisonOperator()) { + args = -1; + } else { + args = func->arguments().size(); + } + QPair<QString, int > op(func->name(), args); + results[op].append(func); + } + QVector<AbstractMetaFunctionList> result; + result.reserve(results.size()); + for (ResultMap::const_iterator it = results.cbegin(), end = results.cend(); it != end; ++it) + result.append(it.value()); + return result; +} + +bool CppGenerator::hasBoolCast(const AbstractMetaClass* metaClass) const +{ + if (!useIsNullAsNbNonZero()) + return false; + // TODO: This could be configurable someday + const AbstractMetaFunction* func = metaClass->findFunction(QLatin1String("isNull")); + if (!func || !func->type() || !func->type()->typeEntry()->isPrimitive() || !func->isPublic()) + return false; + const PrimitiveTypeEntry* pte = static_cast<const PrimitiveTypeEntry*>(func->type()->typeEntry()); + while (pte->referencedTypeEntry()) + pte = pte->referencedTypeEntry(); + return func && func->isConstant() && pte->name() == QLatin1String("bool") && func->arguments().isEmpty(); +} + +typedef QMap<QString, AbstractMetaFunctionList> FunctionGroupMap; +typedef FunctionGroupMap::const_iterator FunctionGroupMapIt; + +// Prevent ELF symbol qt_version_tag from being generated into the source +static const char includeQDebug[] = +"#ifndef QT_NO_VERSION_TAGGING\n" +"# define QT_NO_VERSION_TAGGING\n" +"#endif\n" +"#include <QDebug>\n"; + +static QString chopType(QString s) +{ + if (s.endsWith(QLatin1String("_Type"))) + s.chop(5); + return s; +} + +/*! + Function used to write the class generated binding code on the buffer + \param s the output buffer + \param metaClass the pointer to metaclass information +*/ +void CppGenerator::generateClass(QTextStream &s, GeneratorContext &classContext) +{ + AbstractMetaClass *metaClass = classContext.metaClass(); + if (ReportHandler::isDebug(ReportHandler::SparseDebug)) + qCDebug(lcShiboken) << "Generating wrapper implementation for " << metaClass->fullName(); + + // write license comment + s << licenseComment() << endl; + + if (!avoidProtectedHack() && !metaClass->isNamespace() && !metaClass->hasPrivateDestructor()) { + s << "//workaround to access protected functions" << endl; + s << "#define protected public" << endl << endl; + } + + // headers + s << "// default includes" << endl; + s << "#include <shiboken.h>" << endl; + if (usePySideExtensions()) { + s << includeQDebug; + s << "#include <pysidesignal.h>" << endl; + s << "#include <pysideproperty.h>" << endl; + s << "#include <pyside.h>" << endl; + s << "#include <destroylistener.h>" << endl; + } + + s << "#include <typeresolver.h>" << endl; + s << "#include <typeinfo>" << endl; + if (usePySideExtensions() && metaClass->isQObject()) { + s << "#include <signalmanager.h>" << endl; + s << "#include <pysidemetafunction.h>" << endl; + } + + // The multiple inheritance initialization function + // needs the 'set' class from C++ STL. + if (hasMultipleInheritanceInAncestry(metaClass)) + s << "#include <set>" << endl; + + s << endl << "// module include" << endl << "#include \"" << getModuleHeaderFileName() << '"' << endl; + + QString headerfile = fileNameForContext(classContext); + headerfile.replace(QLatin1String(".cpp"), QLatin1String(".h")); + s << endl << "// main header" << endl << "#include \"" << headerfile << '"' << endl; + + // PYSIDE-500: Use also includes for inherited wrapper classes, because + // without the protected hack, we sometimes need to cast inherited wrappers. + s << endl << "// inherited wrapper classes" << endl; + AbstractMetaClass *basis = metaClass->baseClass(); + for (; basis; basis = basis->baseClass()) { + GeneratorContext basisContext(basis); + QString headerfile = fileNameForContext(basisContext); + headerfile.replace(QLatin1String(".cpp"), QLatin1String(".h")); + s << "#include \"" << headerfile << '"' << endl; + } + + s << endl << "// inner classes" << endl; + const AbstractMetaClassList &innerClasses = metaClass->innerClasses(); + for (AbstractMetaClass *innerClass : innerClasses) { + GeneratorContext innerClassContext(innerClass); + if (shouldGenerate(innerClass)) { + QString headerfile = fileNameForContext(innerClassContext); + headerfile.replace(QLatin1String(".cpp"), QLatin1String(".h")); + s << "#include \"" << headerfile << '"' << endl; + } + } + + AbstractMetaEnumList classEnums = metaClass->enums(); + for (AbstractMetaClass *innerClass : innerClasses) + lookForEnumsInClassesNotToBeGenerated(classEnums, innerClass); + + //Extra includes + s << endl << "// Extra includes" << endl; + QVector<Include> includes = metaClass->typeEntry()->extraIncludes(); + for (AbstractMetaEnum *cppEnum : qAsConst(classEnums)) + includes.append(cppEnum->typeEntry()->extraIncludes()); + qSort(includes.begin(), includes.end()); + for (const Include &inc : qAsConst(includes)) + s << inc.toString() << endl; + s << endl; + + if (metaClass->typeEntry()->typeFlags() & ComplexTypeEntry::Deprecated) + s << "#Deprecated" << endl; + + // Use class base namespace + { + const AbstractMetaClass *context = metaClass->enclosingClass(); + while (context) { + if (context->isNamespace() && !context->enclosingClass()) { + s << "using namespace " << context->qualifiedCppName() << ";" << endl; + break; + } + context = context->enclosingClass(); + } + } + + s << endl; + + // Create string literal for smart pointer getter method. + if (classContext.forSmartPointer()) { + const SmartPointerTypeEntry *typeEntry = + static_cast<const SmartPointerTypeEntry *>(classContext.preciseType() + ->typeEntry()); + QString rawGetter = typeEntry->getter(); + s << "static const char * " SMART_POINTER_GETTER " = \"" << rawGetter << "\";"; + } + + // class inject-code native/beginning + if (!metaClass->typeEntry()->codeSnips().isEmpty()) { + writeCodeSnips(s, metaClass->typeEntry()->codeSnips(), TypeSystem::CodeSnipPositionBeginning, TypeSystem::NativeCode, metaClass); + s << endl; + } + + // python conversion rules + if (metaClass->typeEntry()->hasTargetConversionRule()) { + s << "// Python Conversion" << endl; + s << metaClass->typeEntry()->conversionRule() << endl; + } + + if (shouldGenerateCppWrapper(metaClass)) { + s << "// Native ---------------------------------------------------------" << endl; + s << endl; + + if (avoidProtectedHack() && usePySideExtensions()) { + s << "void " << wrapperName(metaClass) << "::pysideInitQtMetaTypes()\n{\n"; + Indentation indent(INDENT); + writeInitQtMetaTypeFunctionBody(s, classContext); + s << "}\n\n"; + } + + const AbstractMetaFunctionList &funcs = filterFunctions(metaClass); + for (const AbstractMetaFunction *func : funcs) { + if ((func->isPrivate() && !visibilityModifiedToPrivate(func)) + || (func->isModifiedRemoved() && !func->isAbstract())) + continue; + if (func->functionType() == AbstractMetaFunction::ConstructorFunction && !func->isUserAdded()) + writeConstructorNative(s, func); + else if ((!avoidProtectedHack() || !metaClass->hasPrivateDestructor()) + && (func->isVirtual() || func->isAbstract())) + writeVirtualMethodNative(s, func); + } + + if (!avoidProtectedHack() || !metaClass->hasPrivateDestructor()) { + if (usePySideExtensions() && metaClass->isQObject()) + writeMetaObjectMethod(s, metaClass); + writeDestructorNative(s, metaClass); + } + } + + Indentation indentation(INDENT); + + QString methodsDefinitions; + QTextStream md(&methodsDefinitions); + QString singleMethodDefinitions; + QTextStream smd(&singleMethodDefinitions); + + s << endl << "// Target ---------------------------------------------------------" << endl << endl; + s << "extern \"C\" {" << endl; + const FunctionGroupMap &functionGroups = getFunctionGroups(metaClass); + for (FunctionGroupMapIt it = functionGroups.cbegin(), end = functionGroups.cend(); it != end; ++it) { + AbstractMetaFunctionList overloads; + QSet<QString> seenSignatures; + for (AbstractMetaFunction *func : it.value()) { + if (!func->isAssignmentOperator() + && !func->usesRValueReferences() + && !func->isCastOperator() + && !func->isModifiedRemoved() + && (!func->isPrivate() || func->functionType() == AbstractMetaFunction::EmptyFunction) + && func->ownerClass() == func->implementingClass() + && (func->name() != QLatin1String("qt_metacall"))) { + // PYSIDE-331: Inheritance works correctly when there are disjoint functions. + // But when a function is both in a class and inherited in a subclass, + // then we need to search through all subclasses and collect the new signatures. + overloads << getFunctionAndInheritedOverloads(func, &seenSignatures); + } + } + + if (overloads.isEmpty()) + continue; + + const AbstractMetaFunction* rfunc = overloads.first(); + if (m_sequenceProtocol.contains(rfunc->name()) || m_mappingProtocol.contains(rfunc->name())) + continue; + + if (rfunc->isConstructor()) { + // @TODO: Implement constructor support for smart pointers, so that they can be + // instantiated in python code. + if (classContext.forSmartPointer()) + continue; + writeConstructorWrapper(s, overloads, classContext); + } + // call operators + else if (rfunc->name() == QLatin1String("operator()")) + writeMethodWrapper(s, overloads, classContext); + else if (!rfunc->isOperatorOverload()) { + + if (classContext.forSmartPointer()) { + const SmartPointerTypeEntry *smartPointerTypeEntry = + static_cast<const SmartPointerTypeEntry *>( + classContext.preciseType()->typeEntry()); + + if (smartPointerTypeEntry->getter() == rfunc->name()) { + // Replace the return type of the raw pointer getter method with the actual + // return type. + QString innerTypeName = + classContext.preciseType()->getSmartPointerInnerType()->name(); + QString pointerToInnerTypeName = innerTypeName + QLatin1Char('*'); + // @TODO: This possibly leaks, but there are a bunch of other places where this + // is done, so this will be fixed in bulk with all the other cases, because the + // ownership of the pointers is not clear at the moment. + AbstractMetaType *pointerToInnerType = + buildAbstractMetaTypeFromString(pointerToInnerTypeName); + + AbstractMetaFunction *mutableRfunc = overloads.first(); + mutableRfunc->replaceType(pointerToInnerType); + } else if (smartPointerTypeEntry->refCountMethodName().isEmpty() + || smartPointerTypeEntry->refCountMethodName() != rfunc->name()) { + // Skip all public methods of the smart pointer except for the raw getter and + // the ref count method. + continue; + } + } + + writeMethodWrapper(s, overloads, classContext); + if (OverloadData::hasStaticAndInstanceFunctions(overloads)) { + QString methDefName = cpythonMethodDefinitionName(rfunc); + smd << "static PyMethodDef " << methDefName << " = {" << endl; + smd << INDENT; + writeMethodDefinitionEntry(smd, overloads); + smd << endl << "};" << endl << endl; + } + writeMethodDefinition(md, overloads); + } + } + + const QString className = chopType(cpythonTypeName(metaClass)); + + if (metaClass->typeEntry()->isValue() || metaClass->typeEntry()->isSmartPointer()) + writeCopyFunction(s, classContext); + + // Write single method definitions + s << singleMethodDefinitions; + + // Write methods definition + s << "static PyMethodDef " << className << "_methods[] = {" << endl; + s << methodsDefinitions << endl; + if (metaClass->typeEntry()->isValue() || metaClass->typeEntry()->isSmartPointer()) + s << INDENT << "{\"__copy__\", (PyCFunction)" << className << "___copy__" << ", METH_NOARGS}," << endl; + s << INDENT << "{0} // Sentinel" << endl; + s << "};" << endl << endl; + + // Write tp_getattro function + if ((usePySideExtensions() && metaClass->qualifiedCppName() == QLatin1String("QObject"))) { + writeGetattroFunction(s, classContext); + s << endl; + writeSetattroFunction(s, classContext); + s << endl; + } else { + if (classNeedsGetattroFunction(metaClass)) { + writeGetattroFunction(s, classContext); + s << endl; + } + if (classNeedsSetattroFunction(metaClass)) { + writeSetattroFunction(s, classContext); + s << endl; + } + } + + if (hasBoolCast(metaClass)) { + ErrorCode errorCode(-1); + s << "static int " << cpythonBaseName(metaClass) << "___nb_bool(PyObject* " PYTHON_SELF_VAR ")" << endl; + s << '{' << endl; + writeCppSelfDefinition(s, classContext); + s << INDENT << "int result;" << endl; + s << INDENT << BEGIN_ALLOW_THREADS << endl; + s << INDENT << "result = !" CPP_SELF_VAR "->isNull();" << endl; + s << INDENT << END_ALLOW_THREADS << endl; + s << INDENT << "return result;" << endl; + s << '}' << endl << endl; + } + + if (supportsNumberProtocol(metaClass) && !metaClass->typeEntry()->isSmartPointer()) { + const QVector<AbstractMetaFunctionList> opOverloads = filterGroupedOperatorFunctions( + metaClass, + AbstractMetaClass::ArithmeticOp + | AbstractMetaClass::LogicalOp + | AbstractMetaClass::BitwiseOp); + + for (const AbstractMetaFunctionList &allOverloads : opOverloads) { + AbstractMetaFunctionList overloads; + for (AbstractMetaFunction *func : allOverloads) { + if (!func->isModifiedRemoved() + && !func->isPrivate() + && (func->ownerClass() == func->implementingClass() || func->isAbstract())) + overloads.append(func); + } + + if (overloads.isEmpty()) + continue; + + writeMethodWrapper(s, overloads, classContext); + } + } + + if (supportsSequenceProtocol(metaClass)) { + writeSequenceMethods(s, metaClass, classContext); + } + + if (supportsMappingProtocol(metaClass)) { + writeMappingMethods(s, metaClass, classContext); + } + + if (metaClass->hasComparisonOperatorOverload()) { + s << "// Rich comparison" << endl; + writeRichCompareFunction(s, classContext); + } + + if (shouldGenerateGetSetList(metaClass) && !classContext.forSmartPointer()) { + const AbstractMetaFieldList &fields = metaClass->fields(); + for (const AbstractMetaField *metaField : fields) { + if (metaField->isStatic()) + continue; + writeGetterFunction(s, metaField, classContext); + if (!metaField->type()->isConstant()) + writeSetterFunction(s, metaField, classContext); + s << endl; + } + + s << "// Getters and Setters for " << metaClass->name() << endl; + s << "static PyGetSetDef " << cpythonGettersSettersDefinitionName(metaClass) << "[] = {" << endl; + for (const AbstractMetaField *metaField : fields) { + if (metaField->isStatic()) + continue; + + bool hasSetter = !metaField->type()->isConstant(); + s << INDENT << "{const_cast<char*>(\"" << metaField->name() << "\"), "; + s << cpythonGetterFunctionName(metaField); + s << ", " << (hasSetter ? cpythonSetterFunctionName(metaField) : QLatin1String("0")); + s << "}," << endl; + } + s << INDENT << "{0} // Sentinel" << endl; + s << "};" << endl << endl; + } + + s << "} // extern \"C\"" << endl << endl; + + if (!metaClass->typeEntry()->hashFunction().isEmpty()) + writeHashFunction(s, classContext); + + // Write tp_traverse and tp_clear functions. + writeTpTraverseFunction(s, metaClass); + writeTpClearFunction(s, metaClass); + + writeClassDefinition(s, metaClass, classContext); + s << endl; + + if (metaClass->isPolymorphic() && metaClass->baseClass()) + writeTypeDiscoveryFunction(s, metaClass); + + + for (AbstractMetaEnum *cppEnum : qAsConst(classEnums)) { + if (cppEnum->isAnonymous() || cppEnum->isPrivate()) + continue; + + bool hasFlags = cppEnum->typeEntry()->flags(); + if (hasFlags) { + writeFlagsMethods(s, cppEnum); + writeFlagsNumberMethodsDefinition(s, cppEnum); + s << endl; + } + } + s << endl; + + writeConverterFunctions(s, metaClass, classContext); + writeClassRegister(s, metaClass, classContext); + + // class inject-code native/end + if (!metaClass->typeEntry()->codeSnips().isEmpty()) { + writeCodeSnips(s, metaClass->typeEntry()->codeSnips(), TypeSystem::CodeSnipPositionEnd, TypeSystem::NativeCode, metaClass); + s << endl; + } +} + +void CppGenerator::writeConstructorNative(QTextStream& s, const AbstractMetaFunction* func) +{ + Indentation indentation(INDENT); + s << functionSignature(func, wrapperName(func->ownerClass()) + QLatin1String("::"), QString(), + OriginalTypeDescription | SkipDefaultValues); + s << " : "; + writeFunctionCall(s, func); + s << " {" << endl; + const AbstractMetaArgument* lastArg = func->arguments().isEmpty() ? 0 : func->arguments().last(); + writeCodeSnips(s, func->injectedCodeSnips(), TypeSystem::CodeSnipPositionBeginning, TypeSystem::NativeCode, func, lastArg); + s << INDENT << "// ... middle" << endl; + writeCodeSnips(s, func->injectedCodeSnips(), TypeSystem::CodeSnipPositionEnd, TypeSystem::NativeCode, func, lastArg); + s << '}' << endl << endl; +} + +void CppGenerator::writeDestructorNative(QTextStream &s, const AbstractMetaClass *metaClass) +{ + Indentation indentation(INDENT); + s << wrapperName(metaClass) << "::~" << wrapperName(metaClass) << "()" << endl << '{' << endl; + // kill pyobject + s << INDENT << "SbkObject* wrapper = Shiboken::BindingManager::instance().retrieveWrapper(this);" << endl; + s << INDENT << "Shiboken::Object::destroy(wrapper, this);" << endl; + s << '}' << endl; +} + +static bool allArgumentsRemoved(const AbstractMetaFunction* func) +{ + if (func->arguments().isEmpty()) + return false; + const AbstractMetaArgumentList &arguments = func->arguments(); + for (const AbstractMetaArgument *arg : arguments) { + if (!func->argumentRemoved(arg->argumentIndex() + 1)) + return false; + } + return true; +} + +QString CppGenerator::getVirtualFunctionReturnTypeName(const AbstractMetaFunction* func) +{ + if (!func->type()) + return QLatin1String("\"\""); + + if (!func->typeReplaced(0).isEmpty()) + return QLatin1Char('"') + func->typeReplaced(0) + QLatin1Char('"'); + + // SbkType would return null when the type is a container. + if (func->type()->typeEntry()->isContainer()) { + return QLatin1Char('"') + + reinterpret_cast<const ContainerTypeEntry*>(func->type()->typeEntry())->typeName() + + QLatin1Char('"'); + } + + if (avoidProtectedHack()) { + const AbstractMetaEnum* metaEnum = findAbstractMetaEnum(func->type()); + if (metaEnum && metaEnum->isProtected()) + return QLatin1Char('"') + protectedEnumSurrogateName(metaEnum) + QLatin1Char('"'); + } + + if (func->type()->isPrimitive()) + return QLatin1Char('"') + func->type()->name() + QLatin1Char('"'); + + return QString::fromLatin1("Shiboken::SbkType< %1 >()->tp_name").arg(func->type()->typeEntry()->qualifiedCppName()); +} + +void CppGenerator::writeVirtualMethodNative(QTextStream&s, const AbstractMetaFunction* func) +{ + //skip metaObject function, this will be written manually ahead + if (usePySideExtensions() && func->ownerClass() && func->ownerClass()->isQObject() && + ((func->name() == QLatin1String("metaObject")) || (func->name() == QLatin1String("qt_metacall")))) + return; + + const TypeEntry* retType = func->type() ? func->type()->typeEntry() : 0; + const QString funcName = func->isOperatorOverload() ? pythonOperatorFunctionName(func) : func->name(); + + QString prefix = wrapperName(func->ownerClass()) + QLatin1String("::"); + s << functionSignature(func, prefix, QString(), Generator::SkipDefaultValues|Generator::OriginalTypeDescription) + << endl << '{' << endl; + + Indentation indentation(INDENT); + + QString defaultReturnExpr; + if (retType) { + const FunctionModificationList &mods = func->modifications(); + for (const FunctionModification &mod : mods) { + for (const ArgumentModification &argMod : mod.argument_mods) { + if (argMod.index == 0 && !argMod.replacedDefaultExpression.isEmpty()) { + static const QRegularExpression regex(QStringLiteral("%(\\d+)")); + Q_ASSERT(regex.isValid()); + defaultReturnExpr = argMod.replacedDefaultExpression; + for (int offset = 0; ; ) { + const QRegularExpressionMatch match = regex.match(defaultReturnExpr, offset); + if (!match.hasMatch()) + break; + const int argId = match.capturedRef(1).toInt() - 1; + if (argId < 0 || argId > func->arguments().count()) { + qCWarning(lcShiboken) << "The expression used in return value contains an invalid index."; + break; + } + defaultReturnExpr.replace(match.captured(0), func->arguments()[argId]->name()); + offset = match.capturedStart(1); + } + } + } + } + if (defaultReturnExpr.isEmpty()) + defaultReturnExpr = minimalConstructor(func->type()); + if (defaultReturnExpr.isEmpty()) { + QString errorMsg = QLatin1String(__FUNCTION__) + QLatin1String(": "); + if (const AbstractMetaClass *c = func->implementingClass()) + errorMsg += c->qualifiedCppName() + QLatin1String("::"); + errorMsg += func->signature(); + errorMsg = ShibokenGenerator::msgCouldNotFindMinimalConstructor(errorMsg, func->type()->cppSignature()); + qCWarning(lcShiboken).noquote().nospace() << errorMsg; + s << endl << INDENT << "#error " << errorMsg << endl; + } + } + + if (func->isAbstract() && func->isModifiedRemoved()) { + qCWarning(lcShiboken).noquote().nospace() + << QString::fromLatin1("Pure virtual method '%1::%2' must be implement but was "\ + "completely removed on type system.") + .arg(func->ownerClass()->name(), func->minimalSignature()); + s << INDENT << "return " << defaultReturnExpr << ';' << endl; + s << '}' << endl << endl; + return; + } + + //Write declaration/native injected code + if (func->hasInjectedCode()) { + CodeSnipList snips = func->injectedCodeSnips(); + const AbstractMetaArgument* lastArg = func->arguments().isEmpty() ? 0 : func->arguments().last(); + writeCodeSnips(s, snips, TypeSystem::CodeSnipPositionDeclaration, TypeSystem::NativeCode, func, lastArg); + s << endl; + } + + s << INDENT << "Shiboken::GilState gil;" << endl; + + // Get out of virtual method call if someone already threw an error. + s << INDENT << "if (PyErr_Occurred())" << endl; + { + Indentation indentation(INDENT); + s << INDENT << "return " << defaultReturnExpr << ';' << endl; + } + + s << INDENT << "Shiboken::AutoDecRef " PYTHON_OVERRIDE_VAR "(Shiboken::BindingManager::instance().getOverride(this, \""; + s << funcName << "\"));" << endl; + + s << INDENT << "if (" PYTHON_OVERRIDE_VAR ".isNull()) {" << endl; + { + Indentation indentation(INDENT); + CodeSnipList snips; + if (func->hasInjectedCode()) { + snips = func->injectedCodeSnips(); + const AbstractMetaArgument* lastArg = func->arguments().isEmpty() ? 0 : func->arguments().last(); + writeCodeSnips(s, snips, TypeSystem::CodeSnipPositionBeginning, TypeSystem::ShellCode, func, lastArg); + s << endl; + } + + if (func->isAbstract()) { + s << INDENT << "PyErr_SetString(PyExc_NotImplementedError, \"pure virtual method '"; + s << func->ownerClass()->name() << '.' << funcName; + s << "()' not implemented.\");" << endl; + s << INDENT << "return " << (retType ? defaultReturnExpr : QString()); + } else { + s << INDENT << "gil.release();" << endl; + s << INDENT; + if (retType) + s << "return "; + s << "this->::" << func->implementingClass()->qualifiedCppName() << "::"; + writeFunctionCall(s, func, Generator::VirtualCall); + if (!retType) + s << ";\n" << INDENT << "return"; + } + } + s << ';' << endl; + s << INDENT << '}' << endl << endl; + + writeConversionRule(s, func, TypeSystem::TargetLangCode); + + s << INDENT << "Shiboken::AutoDecRef " PYTHON_ARGS "("; + + if (func->arguments().isEmpty() || allArgumentsRemoved(func)) { + s << "PyTuple_New(0));" << endl; + } else { + QStringList argConversions; + const AbstractMetaArgumentList &arguments = func->arguments(); + for (const AbstractMetaArgument *arg : arguments) { + if (func->argumentRemoved(arg->argumentIndex() + 1)) + continue; + + QString argConv; + QTextStream ac(&argConv); + const PrimitiveTypeEntry* argType = (const PrimitiveTypeEntry*) arg->type()->typeEntry(); + bool convert = argType->isObject() + || arg->type()->isQObject() + || argType->isValue() + || arg->type()->isValuePointer() + || arg->type()->isNativePointer() + || argType->isFlags() + || argType->isEnum() + || argType->isContainer() + || arg->type()->referenceType() == LValueReference; + + if (!convert && argType->isPrimitive()) { + if (argType->basicReferencedTypeEntry()) + argType = argType->basicReferencedTypeEntry(); + convert = !m_formatUnits.contains(argType->name()); + } + + Indentation indentation(INDENT); + ac << INDENT; + if (!func->conversionRule(TypeSystem::TargetLangCode, arg->argumentIndex() + 1).isEmpty()) { + // Has conversion rule. + ac << arg->name() + QLatin1String(CONV_RULE_OUT_VAR_SUFFIX); + } else { + QString argName = arg->name(); + if (convert) + writeToPythonConversion(ac, arg->type(), func->ownerClass(), argName); + else + ac << argName; + } + + argConversions << argConv; + } + + s << "Py_BuildValue(\"(" << getFormatUnitString(func, false) << ")\"," << endl; + s << argConversions.join(QLatin1String(",\n")) << endl; + s << INDENT << "));" << endl; + } + + bool invalidateReturn = false; + QSet<int> invalidateArgs; + const FunctionModificationList &mods = func->modifications(); + for (const FunctionModification &funcMod : mods) { + for (const ArgumentModification &argMod : funcMod.argument_mods) { + if (argMod.resetAfterUse && !invalidateArgs.contains(argMod.index)) { + invalidateArgs.insert(argMod.index); + s << INDENT << "bool invalidateArg" << argMod.index; + s << " = PyTuple_GET_ITEM(" PYTHON_ARGS ", " << argMod.index - 1 << ")->ob_refcnt == 1;" << endl; + } else if (argMod.index == 0 && argMod.ownerships[TypeSystem::TargetLangCode] == TypeSystem::CppOwnership) { + invalidateReturn = true; + } + } + } + s << endl; + + CodeSnipList snips; + if (func->hasInjectedCode()) { + snips = func->injectedCodeSnips(); + + if (injectedCodeUsesPySelf(func)) + s << INDENT << "PyObject* pySelf = BindingManager::instance().retrieveWrapper(this);" << endl; + + const AbstractMetaArgument* lastArg = func->arguments().isEmpty() ? 0 : func->arguments().last(); + writeCodeSnips(s, snips, TypeSystem::CodeSnipPositionBeginning, TypeSystem::NativeCode, func, lastArg); + s << endl; + } + + if (!injectedCodeCallsPythonOverride(func)) { + s << INDENT; + s << "Shiboken::AutoDecRef " PYTHON_RETURN_VAR "(PyObject_Call(" PYTHON_OVERRIDE_VAR ", " PYTHON_ARGS ", NULL));" << endl; + + s << INDENT << "// An error happened in python code!" << endl; + s << INDENT << "if (" PYTHON_RETURN_VAR ".isNull()) {" << endl; + { + Indentation indent(INDENT); + s << INDENT << "PyErr_Print();" << endl; + s << INDENT << "return " << defaultReturnExpr << ';' << endl; + } + s << INDENT << '}' << endl; + + if (retType) { + if (invalidateReturn) + s << INDENT << "bool invalidateArg0 = " PYTHON_RETURN_VAR "->ob_refcnt == 1;" << endl; + + if (func->typeReplaced(0) != QLatin1String("PyObject")) { + + s << INDENT << "// Check return type" << endl; + s << INDENT; + if (func->typeReplaced(0).isEmpty()) { + s << "PythonToCppFunc " PYTHON_TO_CPP_VAR " = " << cpythonIsConvertibleFunction(func->type()); + s << PYTHON_RETURN_VAR ");" << endl; + s << INDENT << "if (!" PYTHON_TO_CPP_VAR ") {" << endl; + { + Indentation indent(INDENT); + s << INDENT << "Shiboken::warning(PyExc_RuntimeWarning, 2, "\ + "\"Invalid return value in function %s, expected %s, got %s.\", \""; + s << func->ownerClass()->name() << '.' << funcName << "\", " << getVirtualFunctionReturnTypeName(func); + s << ", " PYTHON_RETURN_VAR "->ob_type->tp_name);" << endl; + s << INDENT << "return " << defaultReturnExpr << ';' << endl; + } + s << INDENT << '}' << endl; + + } else { + + s << INDENT << "// Check return type" << endl; + s << INDENT << "bool typeIsValid = "; + writeTypeCheck(s, func->type(), QLatin1String(PYTHON_RETURN_VAR), + isNumber(func->type()->typeEntry()), func->typeReplaced(0)); + s << ';' << endl; + s << INDENT << "if (!typeIsValid"; + s << (isPointerToWrapperType(func->type()) ? " && " PYTHON_RETURN_VAR " != Py_None" : ""); + s << ") {" << endl; + { + Indentation indent(INDENT); + s << INDENT << "Shiboken::warning(PyExc_RuntimeWarning, 2, "\ + "\"Invalid return value in function %s, expected %s, got %s.\", \""; + s << func->ownerClass()->name() << '.' << funcName << "\", " << getVirtualFunctionReturnTypeName(func); + s << ", " PYTHON_RETURN_VAR "->ob_type->tp_name);" << endl; + s << INDENT << "return " << defaultReturnExpr << ';' << endl; + } + s << INDENT << '}' << endl; + + } + } + + if (!func->conversionRule(TypeSystem::NativeCode, 0).isEmpty()) { + // Has conversion rule. + writeConversionRule(s, func, TypeSystem::NativeCode, QLatin1String(CPP_RETURN_VAR)); + } else if (!injectedCodeHasReturnValueAttribution(func, TypeSystem::NativeCode)) { + writePythonToCppTypeConversion(s, func->type(), QLatin1String(PYTHON_RETURN_VAR), + QLatin1String(CPP_RETURN_VAR), func->implementingClass()); + } + } + } + + if (invalidateReturn) { + s << INDENT << "if (invalidateArg0)" << endl; + Indentation indentation(INDENT); + s << INDENT << "Shiboken::Object::releaseOwnership(" << PYTHON_RETURN_VAR ".object());" << endl; + } + for (int argIndex : qAsConst(invalidateArgs)) { + s << INDENT << "if (invalidateArg" << argIndex << ')' << endl; + Indentation indentation(INDENT); + s << INDENT << "Shiboken::Object::invalidate(PyTuple_GET_ITEM(" PYTHON_ARGS ", "; + s << (argIndex - 1) << "));" << endl; + } + + + const FunctionModificationList &funcMods = func->modifications(); + for (const FunctionModification &funcMod : funcMods) { + for (const ArgumentModification &argMod : funcMod.argument_mods) { + if (argMod.ownerships.contains(TypeSystem::NativeCode) + && argMod.index == 0 && argMod.ownerships[TypeSystem::NativeCode] == TypeSystem::CppOwnership) { + s << INDENT << "if (Shiboken::Object::checkType(" PYTHON_RETURN_VAR "))" << endl; + Indentation indent(INDENT); + s << INDENT << "Shiboken::Object::releaseOwnership(" PYTHON_RETURN_VAR ");" << endl; + } + } + } + + if (func->hasInjectedCode()) { + s << endl; + const AbstractMetaArgument* lastArg = func->arguments().isEmpty() ? 0 : func->arguments().last(); + writeCodeSnips(s, snips, TypeSystem::CodeSnipPositionEnd, TypeSystem::NativeCode, func, lastArg); + } + + if (retType) { + s << INDENT << "return "; + if (avoidProtectedHack() && retType->isEnum()) { + const AbstractMetaEnum* metaEnum = findAbstractMetaEnum(retType); + bool isProtectedEnum = metaEnum && metaEnum->isProtected(); + if (isProtectedEnum) { + QString typeCast; + if (metaEnum->enclosingClass()) + typeCast += QLatin1String("::") + metaEnum->enclosingClass()->qualifiedCppName(); + typeCast += QLatin1String("::") + metaEnum->name(); + s << '(' << typeCast << ')'; + } + } + if (func->type()->referenceType() == LValueReference && !isPointer(func->type())) + s << '*'; + s << CPP_RETURN_VAR ";" << endl; + } + + s << '}' << endl << endl; +} + +void CppGenerator::writeMetaObjectMethod(QTextStream& s, const AbstractMetaClass* metaClass) +{ + Indentation indentation(INDENT); + QString wrapperClassName = wrapperName(metaClass); + s << "const QMetaObject* " << wrapperClassName << "::metaObject() const" << endl; + s << '{' << endl; + s << INDENT << "if (QObject::d_ptr->metaObject)" << endl + << INDENT << INDENT << "return QObject::d_ptr->dynamicMetaObject();" << endl; + s << INDENT << "SbkObject* pySelf = Shiboken::BindingManager::instance().retrieveWrapper(this);" << endl; + s << INDENT << "if (pySelf == NULL)" << endl; + s << INDENT << INDENT << "return " << metaClass->qualifiedCppName() << "::metaObject();" << endl; + s << INDENT << "return PySide::SignalManager::retriveMetaObject(reinterpret_cast<PyObject*>(pySelf));" << endl; + s << '}' << endl << endl; + + // qt_metacall function + s << "int " << wrapperClassName << "::qt_metacall(QMetaObject::Call call, int id, void** args)" << endl; + s << "{" << endl; + + AbstractMetaFunction *func = NULL; + AbstractMetaFunctionList list = metaClass->queryFunctionsByName(QLatin1String("qt_metacall")); + if (list.size() == 1) + func = list[0]; + + CodeSnipList snips; + if (func) { + snips = func->injectedCodeSnips(); + if (func->isUserAdded()) { + CodeSnipList snips = func->injectedCodeSnips(); + writeCodeSnips(s, snips, TypeSystem::CodeSnipPositionAny, TypeSystem::NativeCode, func); + } + } + + s << INDENT << "int result = " << metaClass->qualifiedCppName() << "::qt_metacall(call, id, args);" << endl; + s << INDENT << "return result < 0 ? result : PySide::SignalManager::qt_metacall(this, call, id, args);" << endl; + s << "}" << endl << endl; + + // qt_metacast function + writeMetaCast(s, metaClass); +} + +void CppGenerator::writeMetaCast(QTextStream& s, const AbstractMetaClass* metaClass) +{ + Indentation indentation(INDENT); + QString wrapperClassName = wrapperName(metaClass); + s << "void* " << wrapperClassName << "::qt_metacast(const char* _clname)" << endl; + s << '{' << endl; + s << INDENT << "if (!_clname) return 0;" << endl; + s << INDENT << "SbkObject* pySelf = Shiboken::BindingManager::instance().retrieveWrapper(this);" << endl; + s << INDENT << "if (pySelf && PySide::inherits(Py_TYPE(pySelf), _clname))" << endl; + s << INDENT << INDENT << "return static_cast<void*>(const_cast< " << wrapperClassName << "* >(this));" << endl; + s << INDENT << "return " << metaClass->qualifiedCppName() << "::qt_metacast(_clname);" << endl; + s << "}" << endl << endl; +} + +void CppGenerator::writeEnumConverterFunctions(QTextStream& s, const AbstractMetaEnum* metaEnum) +{ + if (metaEnum->isPrivate() || metaEnum->isAnonymous()) + return; + writeEnumConverterFunctions(s, metaEnum->typeEntry()); +} + +void CppGenerator::writeEnumConverterFunctions(QTextStream& s, const TypeEntry* enumType) +{ + if (!enumType) + return; + QString enumFlagName = enumType->isFlags() ? QLatin1String("flag") : QLatin1String("enum"); + QString typeName = fixedCppTypeName(enumType); + QString enumPythonType = cpythonTypeNameExt(enumType); + QString cppTypeName = getFullTypeName(enumType).trimmed(); + if (avoidProtectedHack()) { + const AbstractMetaEnum* metaEnum = findAbstractMetaEnum(enumType); + if (metaEnum && metaEnum->isProtected()) + cppTypeName = protectedEnumSurrogateName(metaEnum); + } + QString code; + QTextStream c(&code); + c << INDENT << "*((" << cppTypeName << "*)cppOut) = "; + if (enumType->isFlags()) + c << cppTypeName << "(QFlag((int)PySide::QFlags::getValue(reinterpret_cast<PySideQFlagsObject*>(pyIn))))"; + else + c << "(" << cppTypeName << ") Shiboken::Enum::getValue(pyIn)"; + c << ';' << endl; + writePythonToCppFunction(s, code, typeName, typeName); + + QString pyTypeCheck = QStringLiteral("PyObject_TypeCheck(pyIn, %1)").arg(enumPythonType); + writeIsPythonConvertibleToCppFunction(s, typeName, typeName, pyTypeCheck); + + code.clear(); + + c << INDENT << "int castCppIn = *((" << cppTypeName << "*)cppIn);" << endl; + c << INDENT; + c << "return "; + if (enumType->isFlags()) + c << "reinterpret_cast<PyObject*>(PySide::QFlags::newObject(castCppIn, " << enumPythonType << "))"; + + else + c << "Shiboken::Enum::newItem(" << enumPythonType << ", castCppIn)"; + c << ';' << endl; + writeCppToPythonFunction(s, code, typeName, typeName); + s << endl; + + if (enumType->isFlags()) + return; + + const FlagsTypeEntry* flags = reinterpret_cast<const EnumTypeEntry*>(enumType)->flags(); + if (!flags) + return; + + // QFlags part. + + writeEnumConverterFunctions(s, flags); + + code.clear(); + cppTypeName = getFullTypeName(flags).trimmed(); + c << INDENT << "*((" << cppTypeName << "*)cppOut) = " << cppTypeName; + c << "(QFlag((int)Shiboken::Enum::getValue(pyIn)));" << endl; + + QString flagsTypeName = fixedCppTypeName(flags); + writePythonToCppFunction(s, code, typeName, flagsTypeName); + writeIsPythonConvertibleToCppFunction(s, typeName, flagsTypeName, pyTypeCheck); + + code.clear(); + c << INDENT << "Shiboken::AutoDecRef pyLong(PyNumber_Long(pyIn));" << endl; + c << INDENT << "*((" << cppTypeName << "*)cppOut) = " << cppTypeName; + c << "(QFlag((int)PyLong_AsLong(pyLong.object())));" << endl; + writePythonToCppFunction(s, code, QLatin1String("number"), flagsTypeName); + writeIsPythonConvertibleToCppFunction(s, QLatin1String("number"), flagsTypeName, + QLatin1String("PyNumber_Check(pyIn)")); +} + +void CppGenerator::writeConverterFunctions(QTextStream &s, const AbstractMetaClass *metaClass, + GeneratorContext &classContext) +{ + s << "// Type conversion functions." << endl << endl; + + AbstractMetaEnumList classEnums = metaClass->enums(); + const AbstractMetaClassList &innerClasses = metaClass->innerClasses(); + for (AbstractMetaClass *innerClass : innerClasses) + lookForEnumsInClassesNotToBeGenerated(classEnums, innerClass); + if (!classEnums.isEmpty()) + s << "// Python to C++ enum conversion." << endl; + for (const AbstractMetaEnum *metaEnum : qAsConst(classEnums)) + writeEnumConverterFunctions(s, metaEnum); + + if (metaClass->isNamespace()) + return; + + QString typeName; + if (!classContext.forSmartPointer()) + typeName = getFullTypeName(metaClass); + else + typeName = getFullTypeName(classContext.preciseType()); + + QString cpythonType = cpythonTypeName(metaClass); + + // Returns the C++ pointer of the Python wrapper. + s << "// Python to C++ pointer conversion - returns the C++ object of the Python wrapper (keeps object identity)." << endl; + + QString sourceTypeName = metaClass->name(); + QString targetTypeName = metaClass->name() + QLatin1String("_PTR"); + QString code; + QTextStream c(&code); + c << INDENT << "Shiboken::Conversions::pythonToCppPointer(&" << cpythonType << ", pyIn, cppOut);"; + writePythonToCppFunction(s, code, sourceTypeName, targetTypeName); + + // "Is convertible" function for the Python object to C++ pointer conversion. + QString pyTypeCheck = QStringLiteral("PyObject_TypeCheck(pyIn, (PyTypeObject*)&%1)").arg(cpythonType); + writeIsPythonConvertibleToCppFunction(s, sourceTypeName, targetTypeName, pyTypeCheck, QString(), true); + s << endl; + + // C++ pointer to a Python wrapper, keeping identity. + s << "// C++ to Python pointer conversion - tries to find the Python wrapper for the C++ object (keeps object identity)." << endl; + code.clear(); + if (usePySideExtensions() && metaClass->isQObject()) + { + c << INDENT << "return PySide::getWrapperForQObject((" << typeName << "*)cppIn, &" << cpythonType << ");" << endl; + } else { + c << INDENT << "PyObject* pyOut = (PyObject*)Shiboken::BindingManager::instance().retrieveWrapper(cppIn);" << endl; + c << INDENT << "if (pyOut) {" << endl; + { + Indentation indent(INDENT); + c << INDENT << "Py_INCREF(pyOut);" << endl; + c << INDENT << "return pyOut;" << endl; + } + c << INDENT << '}' << endl; + c << INDENT << "const char* typeName = typeid(*((" << typeName << "*)cppIn)).name();" << endl; + c << INDENT << "return Shiboken::Object::newObject(&" << cpythonType; + c << ", const_cast<void*>(cppIn), false, false, typeName);"; + } + std::swap(targetTypeName, sourceTypeName); + writeCppToPythonFunction(s, code, sourceTypeName, targetTypeName); + + // The conversions for an Object Type end here. + if (!metaClass->typeEntry()->isValue() && !metaClass->typeEntry()->isSmartPointer()) { + s << endl; + return; + } + + // Always copies C++ value (not pointer, and not reference) to a new Python wrapper. + s << endl << "// C++ to Python copy conversion." << endl; + if (!classContext.forSmartPointer()) + targetTypeName = metaClass->name(); + else + targetTypeName = classContext.preciseType()->name(); + + sourceTypeName = targetTypeName + QLatin1String("_COPY"); + + code.clear(); + + QString computedWrapperName; + if (!classContext.forSmartPointer()) + computedWrapperName = wrapperName(metaClass); + else + computedWrapperName = wrapperName(classContext.preciseType()); + + c << INDENT << "return Shiboken::Object::newObject(&" << cpythonType << ", new ::" << computedWrapperName; + c << "(*((" << typeName << "*)cppIn)), true, true);"; + writeCppToPythonFunction(s, code, sourceTypeName, targetTypeName); + s << endl; + + // Python to C++ copy conversion. + s << "// Python to C++ copy conversion." << endl; + if (!classContext.forSmartPointer()) + sourceTypeName = metaClass->name(); + else + sourceTypeName = classContext.preciseType()->name(); + + targetTypeName = QStringLiteral("%1_COPY").arg(sourceTypeName); + code.clear(); + + QString pyInVariable = QLatin1String("pyIn"); + QString wrappedCPtrExpression; + if (!classContext.forSmartPointer()) + wrappedCPtrExpression = cpythonWrapperCPtr(metaClass->typeEntry(), pyInVariable); + else + wrappedCPtrExpression = cpythonWrapperCPtr(classContext.preciseType(), pyInVariable); + + c << INDENT << "*((" << typeName << "*)cppOut) = *" + << wrappedCPtrExpression << ';'; + writePythonToCppFunction(s, code, sourceTypeName, targetTypeName); + + // "Is convertible" function for the Python object to C++ value copy conversion. + writeIsPythonConvertibleToCppFunction(s, sourceTypeName, targetTypeName, pyTypeCheck); + s << endl; + + // User provided implicit conversions. + CustomConversion* customConversion = metaClass->typeEntry()->customConversion(); + + // Implicit conversions. + AbstractMetaFunctionList implicitConvs; + if (!customConversion || !customConversion->replaceOriginalTargetToNativeConversions()) { + const AbstractMetaFunctionList &allImplicitConvs = implicitConversions(metaClass->typeEntry()); + for (AbstractMetaFunction *func : allImplicitConvs) { + if (!func->isUserAdded()) + implicitConvs << func; + } + } + + if (!implicitConvs.isEmpty()) + s << "// Implicit conversions." << endl; + + AbstractMetaType* targetType = buildAbstractMetaTypeFromAbstractMetaClass(metaClass); + for (const AbstractMetaFunction* conv : qAsConst(implicitConvs)) { + if (conv->isModifiedRemoved()) + continue; + + QString typeCheck; + QString toCppConv; + QString toCppPreConv; + if (conv->isConversionOperator()) { + const AbstractMetaClass* sourceClass = conv->ownerClass(); + typeCheck = QStringLiteral("PyObject_TypeCheck(pyIn, %1)").arg(cpythonTypeNameExt(sourceClass->typeEntry())); + toCppConv = QLatin1Char('*') + cpythonWrapperCPtr(sourceClass->typeEntry(), QLatin1String("pyIn")); + } else { + // Constructor that does implicit conversion. + if (!conv->typeReplaced(1).isEmpty()) + continue; + const AbstractMetaType* sourceType = conv->arguments().first()->type(); + typeCheck = cpythonCheckFunction(sourceType); + bool isUserPrimitiveWithoutTargetLangName = isUserPrimitive(sourceType) + && sourceType->typeEntry()->targetLangApiName() == sourceType->typeEntry()->name(); + if (!isWrapperType(sourceType) + && !isUserPrimitiveWithoutTargetLangName + && !sourceType->typeEntry()->isEnum() + && !sourceType->typeEntry()->isFlags() + && !sourceType->typeEntry()->isContainer()) { + typeCheck += QLatin1Char('('); + } + if (isWrapperType(sourceType)) { + typeCheck += QLatin1String("pyIn)"); + toCppConv = (sourceType->referenceType() == LValueReference || !isPointerToWrapperType(sourceType)) + ? QLatin1String("*") : QString(); + toCppConv += cpythonWrapperCPtr(sourceType->typeEntry(), QLatin1String("pyIn")); + } else if (typeCheck.contains(QLatin1String("%in"))) { + typeCheck.replace(QLatin1String("%in"), QLatin1String("pyIn")); + typeCheck.append(QLatin1Char(')')); + } else { + typeCheck += QLatin1String("pyIn)"); + } + + if (isUserPrimitive(sourceType) + || isCppPrimitive(sourceType) + || sourceType->typeEntry()->isContainer() + || sourceType->typeEntry()->isEnum() + || sourceType->typeEntry()->isFlags()) { + QTextStream pc(&toCppPreConv); + pc << INDENT << getFullTypeNameWithoutModifiers(sourceType) << " cppIn"; + writeMinimalConstructorExpression(pc, sourceType); + pc << ';' << endl; + writeToCppConversion(pc, sourceType, 0, QLatin1String("pyIn"), QLatin1String("cppIn")); + pc << ';'; + toCppConv.append(QLatin1String("cppIn")); + } else if (!isWrapperType(sourceType)) { + QTextStream tcc(&toCppConv); + writeToCppConversion(tcc, sourceType, metaClass, QLatin1String("pyIn"), QLatin1String("/*BOZO-1061*/")); + } + + + } + const AbstractMetaType* sourceType = conv->isConversionOperator() + ? buildAbstractMetaTypeFromAbstractMetaClass(conv->ownerClass()) + : conv->arguments().first()->type(); + writePythonToCppConversionFunctions(s, sourceType, targetType, typeCheck, toCppConv, toCppPreConv); + } + + writeCustomConverterFunctions(s, customConversion); +} + +void CppGenerator::writeCustomConverterFunctions(QTextStream& s, const CustomConversion* customConversion) +{ + if (!customConversion) + return; + const CustomConversion::TargetToNativeConversions& toCppConversions = customConversion->targetToNativeConversions(); + if (toCppConversions.isEmpty()) + return; + s << "// Python to C++ conversions for type '" << customConversion->ownerType()->qualifiedCppName() << "'." << endl; + for (CustomConversion::TargetToNativeConversion *toNative : toCppConversions) + writePythonToCppConversionFunctions(s, toNative, customConversion->ownerType()); + s << endl; +} + +void CppGenerator::writeConverterRegister(QTextStream &s, const AbstractMetaClass *metaClass, + GeneratorContext &classContext) +{ + if (metaClass->isNamespace()) + return; + s << INDENT << "// Register Converter" << endl; + s << INDENT << "SbkConverter* converter = Shiboken::Conversions::createConverter(&"; + s << cpythonTypeName(metaClass) << ',' << endl; + { + Indentation indent(INDENT); + QString sourceTypeName = metaClass->name(); + QString targetTypeName = sourceTypeName + QLatin1String("_PTR"); + s << INDENT << pythonToCppFunctionName(sourceTypeName, targetTypeName) << ',' << endl; + s << INDENT << convertibleToCppFunctionName(sourceTypeName, targetTypeName) << ',' << endl; + std::swap(targetTypeName, sourceTypeName); + s << INDENT << cppToPythonFunctionName(sourceTypeName, targetTypeName); + if (metaClass->typeEntry()->isValue() || metaClass->typeEntry()->isSmartPointer()) { + s << ',' << endl; + sourceTypeName = metaClass->name() + QLatin1String("_COPY"); + s << INDENT << cppToPythonFunctionName(sourceTypeName, targetTypeName); + } + } + s << ");" << endl; + + s << endl; + + QStringList cppSignature; + if (!classContext.forSmartPointer()) { + cppSignature = metaClass->qualifiedCppName().split(QLatin1String("::"), + QString::SkipEmptyParts); + } else { + cppSignature = classContext.preciseType()->cppSignature().split(QLatin1String("::"), + QString::SkipEmptyParts); + } + while (!cppSignature.isEmpty()) { + QString signature = cppSignature.join(QLatin1String("::")); + s << INDENT << "Shiboken::Conversions::registerConverterName(converter, \"" << signature << "\");" << endl; + s << INDENT << "Shiboken::Conversions::registerConverterName(converter, \"" << signature << "*\");" << endl; + s << INDENT << "Shiboken::Conversions::registerConverterName(converter, \"" << signature << "&\");" << endl; + cppSignature.removeFirst(); + } + + s << INDENT << "Shiboken::Conversions::registerConverterName(converter, typeid(::"; + QString qualifiedCppNameInvocation; + if (!classContext.forSmartPointer()) + qualifiedCppNameInvocation = metaClass->qualifiedCppName(); + else + qualifiedCppNameInvocation = classContext.preciseType()->cppSignature(); + + s << qualifiedCppNameInvocation << ").name());" << endl; + + if (shouldGenerateCppWrapper(metaClass)) { + s << INDENT << "Shiboken::Conversions::registerConverterName(converter, typeid(::"; + s << wrapperName(metaClass) << ").name());" << endl; + } + + s << endl; + + if (!metaClass->typeEntry()->isValue() && !metaClass->typeEntry()->isSmartPointer()) + return; + + // Python to C++ copy (value, not pointer neither reference) conversion. + s << INDENT << "// Add Python to C++ copy (value, not pointer neither reference) conversion to type converter." << endl; + QString sourceTypeName = metaClass->name(); + QString targetTypeName = sourceTypeName + QLatin1String("_COPY"); + QString toCpp = pythonToCppFunctionName(sourceTypeName, targetTypeName); + QString isConv = convertibleToCppFunctionName(sourceTypeName, targetTypeName); + writeAddPythonToCppConversion(s, QLatin1String("converter"), toCpp, isConv); + + // User provided implicit conversions. + CustomConversion* customConversion = metaClass->typeEntry()->customConversion(); + + // Add implicit conversions. + AbstractMetaFunctionList implicitConvs; + if (!customConversion || !customConversion->replaceOriginalTargetToNativeConversions()) { + const AbstractMetaFunctionList &allImplicitConvs = implicitConversions(metaClass->typeEntry()); + for (AbstractMetaFunction *func : allImplicitConvs) { + if (!func->isUserAdded()) + implicitConvs << func; + } + } + + if (!implicitConvs.isEmpty()) + s << INDENT << "// Add implicit conversions to type converter." << endl; + + AbstractMetaType* targetType = buildAbstractMetaTypeFromAbstractMetaClass(metaClass); + for (const AbstractMetaFunction *conv : qAsConst(implicitConvs)) { + if (conv->isModifiedRemoved()) + continue; + const AbstractMetaType* sourceType; + if (conv->isConversionOperator()) { + sourceType = buildAbstractMetaTypeFromAbstractMetaClass(conv->ownerClass()); + } else { + // Constructor that does implicit conversion. + if (!conv->typeReplaced(1).isEmpty()) + continue; + sourceType = conv->arguments().first()->type(); + } + QString toCpp = pythonToCppFunctionName(sourceType, targetType); + QString isConv = convertibleToCppFunctionName(sourceType, targetType); + writeAddPythonToCppConversion(s, QLatin1String("converter"), toCpp, isConv); + } + + writeCustomConverterRegister(s, customConversion, QLatin1String("converter")); +} + +void CppGenerator::writeCustomConverterRegister(QTextStream& s, const CustomConversion* customConversion, const QString& converterVar) +{ + if (!customConversion) + return; + const CustomConversion::TargetToNativeConversions& toCppConversions = customConversion->targetToNativeConversions(); + if (toCppConversions.isEmpty()) + return; + s << INDENT << "// Add user defined implicit conversions to type converter." << endl; + for (CustomConversion::TargetToNativeConversion *toNative : toCppConversions) { + QString toCpp = pythonToCppFunctionName(toNative, customConversion->ownerType()); + QString isConv = convertibleToCppFunctionName(toNative, customConversion->ownerType()); + writeAddPythonToCppConversion(s, converterVar, toCpp, isConv); + } +} + +void CppGenerator::writeContainerConverterRegister(QTextStream& s, const AbstractMetaType* container, const QString& converterVar) +{ + s << INDENT << "// Add user defined container conversion to type converter." << endl; + QString typeName = fixedCppTypeName(container); + QString toCpp = pythonToCppFunctionName(typeName, typeName); + QString isConv = convertibleToCppFunctionName(typeName, typeName); + writeAddPythonToCppConversion(s, converterVar, toCpp, isConv); +} + +void CppGenerator::writeContainerConverterFunctions(QTextStream& s, const AbstractMetaType* containerType) +{ + writeCppToPythonFunction(s, containerType); + writePythonToCppConversionFunctions(s, containerType); +} + +void CppGenerator::writeMethodWrapperPreamble(QTextStream &s, OverloadData &overloadData, + GeneratorContext &context) +{ + const AbstractMetaFunction* rfunc = overloadData.referenceFunction(); + const AbstractMetaClass* ownerClass = rfunc->ownerClass(); + int minArgs = overloadData.minArgs(); + int maxArgs = overloadData.maxArgs(); + bool initPythonArguments; + bool usesNamedArguments; + + // If method is a constructor... + if (rfunc->isConstructor()) { + // Check if the right constructor was called. + if (!ownerClass->hasPrivateDestructor()) { + s << INDENT; + s << "if (Shiboken::Object::isUserType(" PYTHON_SELF_VAR ") && !Shiboken::ObjectType::canCallConstructor(" PYTHON_SELF_VAR "->ob_type, Shiboken::SbkType< ::"; + QString qualifiedCppName; + if (!context.forSmartPointer()) + qualifiedCppName = ownerClass->qualifiedCppName(); + else + qualifiedCppName = context.preciseType()->cppSignature(); + + s << qualifiedCppName << " >()))" << endl; + Indentation indent(INDENT); + s << INDENT << "return " << m_currentErrorCode << ';' << endl << endl; + } + // Declare pointer for the underlying C++ object. + s << INDENT << "::"; + if (!context.forSmartPointer()) { + s << (shouldGenerateCppWrapper(ownerClass) ? wrapperName(ownerClass) + : ownerClass->qualifiedCppName()); + } else { + s << context.preciseType()->cppSignature(); + } + s << "* cptr = 0;" << endl; + + initPythonArguments = maxArgs > 0; + usesNamedArguments = !ownerClass->isQObject() && overloadData.hasArgumentWithDefaultValue(); + + } else { + if (rfunc->implementingClass() && + (!rfunc->implementingClass()->isNamespace() && overloadData.hasInstanceFunction())) { + writeCppSelfDefinition(s, rfunc, context, overloadData.hasStaticFunction()); + } + if (!rfunc->isInplaceOperator() && overloadData.hasNonVoidReturnType()) + s << INDENT << "PyObject* " PYTHON_RETURN_VAR " = 0;" << endl; + + initPythonArguments = minArgs != maxArgs || maxArgs > 1; + usesNamedArguments = rfunc->isCallOperator() || overloadData.hasArgumentWithDefaultValue(); + } + + if (maxArgs > 0) { + s << INDENT << "int overloadId = -1;" << endl; + s << INDENT << "PythonToCppFunc " PYTHON_TO_CPP_VAR; + if (pythonFunctionWrapperUsesListOfArguments(overloadData)) + s << "[] = { 0" << QString::fromLatin1(", 0").repeated(maxArgs-1) << " }"; + s << ';' << endl; + writeUnusedVariableCast(s, QLatin1String(PYTHON_TO_CPP_VAR)); + } + + if (usesNamedArguments && !rfunc->isCallOperator()) + s << INDENT << "int numNamedArgs = (kwds ? PyDict_Size(kwds) : 0);" << endl; + + if (initPythonArguments) { + s << INDENT << "int numArgs = "; + if (minArgs == 0 && maxArgs == 1 && !rfunc->isConstructor() && !pythonFunctionWrapperUsesListOfArguments(overloadData)) + s << "(" PYTHON_ARG " == 0 ? 0 : 1);" << endl; + else + writeArgumentsInitializer(s, overloadData); + } +} + +void CppGenerator::writeConstructorWrapper(QTextStream &s, const AbstractMetaFunctionList overloads, + GeneratorContext &classContext) +{ + ErrorCode errorCode(-1); + OverloadData overloadData(overloads, this); + + const AbstractMetaFunction* rfunc = overloadData.referenceFunction(); + const AbstractMetaClass* metaClass = rfunc->ownerClass(); + + s << "static int" << endl; + s << cpythonFunctionName(rfunc) << "(PyObject* " PYTHON_SELF_VAR ", PyObject* args, PyObject* kwds)" << endl; + s << '{' << endl; + + QSet<QString> argNamesSet; + if (usePySideExtensions() && metaClass->isQObject()) { + // Write argNames variable with all known argument names. + const OverloadData::MetaFunctionList &overloads = overloadData.overloads(); + for (const AbstractMetaFunction *func : overloads) { + const AbstractMetaArgumentList &arguments = func->arguments(); + for (const AbstractMetaArgument *arg : arguments) { + if (arg->defaultValueExpression().isEmpty() || func->argumentRemoved(arg->argumentIndex() + 1)) + continue; + argNamesSet << arg->name(); + } + } + QStringList argNamesList = argNamesSet.toList(); + qSort(argNamesList.begin(), argNamesList.end()); + if (argNamesList.isEmpty()) { + s << INDENT << "const char** argNames = 0;" << endl; + } else { + s << INDENT << "const char* argNames[] = {\"" + << argNamesList.join(QLatin1String("\", \"")) << "\"};" << endl; + } + s << INDENT << "const QMetaObject* metaObject;" << endl; + } + + s << INDENT << "SbkObject* sbkSelf = reinterpret_cast<SbkObject*>(" PYTHON_SELF_VAR ");" << endl; + + if (metaClass->isAbstract() || metaClass->baseClassNames().size() > 1) { + s << INDENT << "SbkObjectType* type = reinterpret_cast<SbkObjectType*>(" PYTHON_SELF_VAR "->ob_type);" << endl; + s << INDENT << "SbkObjectType* myType = reinterpret_cast<SbkObjectType*>(" << cpythonTypeNameExt(metaClass->typeEntry()) << ");" << endl; + } + + if (metaClass->isAbstract()) { + s << INDENT << "if (type == myType) {" << endl; + { + Indentation indent(INDENT); + s << INDENT << "PyErr_SetString(PyExc_NotImplementedError," << endl; + { + Indentation indentation(INDENT); + s << INDENT << "\"'" << metaClass->qualifiedCppName(); + } + s << "' represents a C++ abstract class and cannot be instantiated\");" << endl; + s << INDENT << "return " << m_currentErrorCode << ';' << endl; + } + s << INDENT << '}' << endl << endl; + } + + if (metaClass->baseClassNames().size() > 1) { + if (!metaClass->isAbstract()) { + s << INDENT << "if (type != myType) {" << endl; + } + { + Indentation indentation(INDENT); + s << INDENT << "Shiboken::ObjectType::copyMultimpleheritance(type, myType);" << endl; + } + if (!metaClass->isAbstract()) + s << INDENT << '}' << endl << endl; + } + + writeMethodWrapperPreamble(s, overloadData, classContext); + + s << endl; + + if (overloadData.maxArgs() > 0) + writeOverloadedFunctionDecisor(s, overloadData); + + writeFunctionCalls(s, overloadData, classContext); + s << endl; + + s << INDENT << "if (PyErr_Occurred() || !Shiboken::Object::setCppPointer(sbkSelf, Shiboken::SbkType< ::" << metaClass->qualifiedCppName() << " >(), cptr)) {" << endl; + { + Indentation indent(INDENT); + s << INDENT << "delete cptr;" << endl; + s << INDENT << "return " << m_currentErrorCode << ';' << endl; + } + s << INDENT << '}' << endl; + if (overloadData.maxArgs() > 0) { + s << INDENT << "if (!cptr) goto " << cpythonFunctionName(rfunc) << "_TypeError;" << endl; + s << endl; + } + + s << INDENT << "Shiboken::Object::setValidCpp(sbkSelf, true);" << endl; + // If the created C++ object has a C++ wrapper the ownership is assigned to Python + // (first "1") and the flag indicating that the Python wrapper holds an C++ wrapper + // is marked as true (the second "1"). Otherwise the default values apply: + // Python owns it and C++ wrapper is false. + if (shouldGenerateCppWrapper(overloads.first()->ownerClass())) + s << INDENT << "Shiboken::Object::setHasCppWrapper(sbkSelf, true);" << endl; + // Need to check if a wrapper for same pointer is already registered + // Caused by bug PYSIDE-217, where deleted objects' wrappers are not released + s << INDENT << "if (Shiboken::BindingManager::instance().hasWrapper(cptr)) {" << endl; + { + Indentation indent(INDENT); + s << INDENT << "Shiboken::BindingManager::instance().releaseWrapper(Shiboken::BindingManager::instance().retrieveWrapper(cptr));" << endl; + } + s << INDENT << "}" << endl; + s << INDENT << "Shiboken::BindingManager::instance().registerWrapper(sbkSelf, cptr);" << endl; + + // Create metaObject and register signal/slot + if (metaClass->isQObject() && usePySideExtensions()) { + s << endl << INDENT << "// QObject setup" << endl; + s << INDENT << "PySide::Signal::updateSourceObject(" PYTHON_SELF_VAR ");" << endl; + s << INDENT << "metaObject = cptr->metaObject(); // <- init python qt properties" << endl; + s << INDENT << "if (kwds && !PySide::fillQtProperties(" PYTHON_SELF_VAR ", metaObject, kwds, argNames, " << argNamesSet.count() << "))" << endl; + { + Indentation indentation(INDENT); + s << INDENT << "return " << m_currentErrorCode << ';' << endl; + } + } + + // Constructor code injections, position=end + bool hasCodeInjectionsAtEnd = false; + for (AbstractMetaFunction *func : overloads) { + const CodeSnipList &injectedCodeSnips = func->injectedCodeSnips(); + for (const CodeSnip &cs : injectedCodeSnips) { + if (cs.position == TypeSystem::CodeSnipPositionEnd) { + hasCodeInjectionsAtEnd = true; + break; + } + } + } + if (hasCodeInjectionsAtEnd) { + // FIXME: C++ arguments are not available in code injection on constructor when position = end. + s << INDENT << "switch(overloadId) {" << endl; + for (AbstractMetaFunction *func : overloads) { + Indentation indent(INDENT); + const CodeSnipList &injectedCodeSnips = func->injectedCodeSnips(); + for (const CodeSnip &cs : injectedCodeSnips) { + if (cs.position == TypeSystem::CodeSnipPositionEnd) { + s << INDENT << "case " << metaClass->functions().indexOf(func) << ':' << endl; + s << INDENT << '{' << endl; + { + Indentation indent(INDENT); + writeCodeSnips(s, func->injectedCodeSnips(), TypeSystem::CodeSnipPositionEnd, TypeSystem::TargetLangCode, func); + } + s << INDENT << '}' << endl; + break; + } + } + } + s << '}' << endl; + } + + s << endl; + s << endl << INDENT << "return 1;" << endl; + if (overloadData.maxArgs() > 0) + writeErrorSection(s, overloadData); + s << '}' << endl << endl; +} + +void CppGenerator::writeMethodWrapper(QTextStream &s, const AbstractMetaFunctionList overloads, + GeneratorContext &classContext) +{ + OverloadData overloadData(overloads, this); + const AbstractMetaFunction* rfunc = overloadData.referenceFunction(); + + int maxArgs = overloadData.maxArgs(); + + s << "static PyObject* "; + s << cpythonFunctionName(rfunc) << "(PyObject* " PYTHON_SELF_VAR; + if (maxArgs > 0) { + s << ", PyObject* " << (pythonFunctionWrapperUsesListOfArguments(overloadData) ? "args" : PYTHON_ARG); + if (overloadData.hasArgumentWithDefaultValue() || rfunc->isCallOperator()) + s << ", PyObject* kwds"; + } + s << ')' << endl << '{' << endl; + + writeMethodWrapperPreamble(s, overloadData, classContext); + + s << endl; + + /* + * Make sure reverse <</>> operators defined in other classes (specially from other modules) + * are called. A proper and generic solution would require an reengineering in the operator + * system like the extended converters. + * + * Solves #119 - QDataStream <</>> operators not working for QPixmap + * http://bugs.openbossa.org/show_bug.cgi?id=119 + */ + bool hasReturnValue = overloadData.hasNonVoidReturnType(); + bool callExtendedReverseOperator = hasReturnValue + && !rfunc->isInplaceOperator() + && !rfunc->isCallOperator() + && rfunc->isOperatorOverload(); + if (callExtendedReverseOperator) { + QString revOpName = ShibokenGenerator::pythonOperatorFunctionName(rfunc).insert(2, QLatin1Char('r')); + if (rfunc->isBinaryOperator()) { + s << INDENT << "if (!isReverse" << endl; + { + Indentation indent(INDENT); + s << INDENT << "&& Shiboken::Object::checkType(" PYTHON_ARG ")" << endl; + s << INDENT << "&& !PyObject_TypeCheck(" PYTHON_ARG ", " PYTHON_SELF_VAR "->ob_type)" << endl; + s << INDENT << "&& PyObject_HasAttrString(" PYTHON_ARG ", const_cast<char*>(\"" << revOpName << "\"))) {" << endl; + + // This PyObject_CallMethod call will emit lots of warnings like + // "deprecated conversion from string constant to char *" during compilation + // due to the method name argument being declared as "char*" instead of "const char*" + // issue 6952 http://bugs.python.org/issue6952 + s << INDENT << "PyObject* revOpMethod = PyObject_GetAttrString(" PYTHON_ARG ", const_cast<char*>(\"" << revOpName << "\"));" << endl; + s << INDENT << "if (revOpMethod && PyCallable_Check(revOpMethod)) {" << endl; + { + Indentation indent(INDENT); + s << INDENT << PYTHON_RETURN_VAR " = PyObject_CallFunction(revOpMethod, const_cast<char*>(\"O\"), " PYTHON_SELF_VAR ");" << endl; + s << INDENT << "if (PyErr_Occurred() && (PyErr_ExceptionMatches(PyExc_NotImplementedError)"; + s << " || PyErr_ExceptionMatches(PyExc_AttributeError))) {" << endl; + { + Indentation indent(INDENT); + s << INDENT << "PyErr_Clear();" << endl; + s << INDENT << "Py_XDECREF(" PYTHON_RETURN_VAR ");" << endl; + s << INDENT << PYTHON_RETURN_VAR " = 0;" << endl; + } + s << INDENT << '}' << endl; + } + s << INDENT << "}" << endl; + s << INDENT << "Py_XDECREF(revOpMethod);" << endl << endl; + } + s << INDENT << "}" << endl; + } + s << INDENT << "// Do not enter here if other object has implemented a reverse operator." << endl; + s << INDENT << "if (!" PYTHON_RETURN_VAR ") {" << endl << endl; + } + + if (maxArgs > 0) + writeOverloadedFunctionDecisor(s, overloadData); + + writeFunctionCalls(s, overloadData, classContext); + + if (callExtendedReverseOperator) + s << endl << INDENT << "} // End of \"if (!" PYTHON_RETURN_VAR ")\"" << endl; + + s << endl; + + writeFunctionReturnErrorCheckSection(s, hasReturnValue && !rfunc->isInplaceOperator()); + + if (hasReturnValue) { + if (rfunc->isInplaceOperator()) { + s << INDENT << "Py_INCREF(" PYTHON_SELF_VAR ");\n"; + s << INDENT << "return " PYTHON_SELF_VAR ";\n"; + } else { + s << INDENT << "return " PYTHON_RETURN_VAR ";\n"; + } + } else { + s << INDENT << "Py_RETURN_NONE;" << endl; + } + + if (maxArgs > 0) + writeErrorSection(s, overloadData); + + s << '}' << endl << endl; +} + +void CppGenerator::writeArgumentsInitializer(QTextStream& s, OverloadData& overloadData) +{ + const AbstractMetaFunction* rfunc = overloadData.referenceFunction(); + s << "PyTuple_GET_SIZE(args);" << endl; + + int minArgs = overloadData.minArgs(); + int maxArgs = overloadData.maxArgs(); + + s << INDENT << "PyObject* "; + s << PYTHON_ARGS "[] = {" + << QString(maxArgs, QLatin1Char('0')).split(QLatin1String(""), QString::SkipEmptyParts).join(QLatin1String(", ")) + << "};" << endl; + s << endl; + + if (overloadData.hasVarargs()) { + maxArgs--; + if (minArgs > maxArgs) + minArgs = maxArgs; + + s << INDENT << "PyObject* nonvarargs = PyTuple_GetSlice(args, 0, " << maxArgs << ");" << endl; + s << INDENT << "Shiboken::AutoDecRef auto_nonvarargs(nonvarargs);" << endl; + s << INDENT << PYTHON_ARGS "[" << maxArgs << "] = PyTuple_GetSlice(args, " << maxArgs << ", numArgs);" << endl; + s << INDENT << "Shiboken::AutoDecRef auto_varargs(" PYTHON_ARGS "[" << maxArgs << "]);" << endl; + s << endl; + } + + bool usesNamedArguments = overloadData.hasArgumentWithDefaultValue(); + + s << INDENT << "// invalid argument lengths" << endl; + bool ownerClassIsQObject = rfunc->ownerClass() && rfunc->ownerClass()->isQObject() && rfunc->isConstructor(); + if (usesNamedArguments) { + if (!ownerClassIsQObject) { + s << INDENT << "if (numArgs" << (overloadData.hasArgumentWithDefaultValue() ? " + numNamedArgs" : "") << " > " << maxArgs << ") {" << endl; + { + Indentation indent(INDENT); + s << INDENT << "PyErr_SetString(PyExc_TypeError, \"" << fullPythonFunctionName(rfunc) << "(): too many arguments\");" << endl; + s << INDENT << "return " << m_currentErrorCode << ';' << endl; + } + s << INDENT << '}'; + } + if (minArgs > 0) { + if (ownerClassIsQObject) + s << INDENT; + else + s << " else "; + s << "if (numArgs < " << minArgs << ") {" << endl; + { + Indentation indent(INDENT); + s << INDENT << "PyErr_SetString(PyExc_TypeError, \"" << fullPythonFunctionName(rfunc) << "(): not enough arguments\");" << endl; + s << INDENT << "return " << m_currentErrorCode << ';' << endl; + } + s << INDENT << '}'; + } + } + const QVector<int> invalidArgsLength = overloadData.invalidArgumentLengths(); + if (!invalidArgsLength.isEmpty()) { + QStringList invArgsLen; + for (int i : qAsConst(invalidArgsLength)) + invArgsLen << QStringLiteral("numArgs == %1").arg(i); + if (usesNamedArguments && (!ownerClassIsQObject || minArgs > 0)) + s << " else "; + else + s << INDENT; + s << "if (" << invArgsLen.join(QLatin1String(" || ")) << ")" << endl; + Indentation indent(INDENT); + s << INDENT << "goto " << cpythonFunctionName(rfunc) << "_TypeError;"; + } + s << endl << endl; + + QString funcName; + if (rfunc->isOperatorOverload()) + funcName = ShibokenGenerator::pythonOperatorFunctionName(rfunc); + else + funcName = rfunc->name(); + + QString argsVar = overloadData.hasVarargs() ? QLatin1String("nonvarargs") : QLatin1String("args"); + s << INDENT << "if (!"; + if (usesNamedArguments) + s << "PyArg_ParseTuple(" << argsVar << ", \"|" << QByteArray(maxArgs, 'O') << ':' << funcName << '"'; + else + s << "PyArg_UnpackTuple(" << argsVar << ", \"" << funcName << "\", " << minArgs << ", " << maxArgs; + QStringList palist; + for (int i = 0; i < maxArgs; i++) + palist << QString::fromLatin1("&(" PYTHON_ARGS "[%1])").arg(i); + s << ", " << palist.join(QLatin1String(", ")) << "))" << endl; + { + Indentation indent(INDENT); + s << INDENT << "return " << m_currentErrorCode << ';' << endl; + } + s << endl; +} + +void CppGenerator::writeCppSelfDefinition(QTextStream &s, + GeneratorContext &context, + bool hasStaticOverload, + bool cppSelfAsReference) +{ + const AbstractMetaClass *metaClass = context.metaClass(); + bool useWrapperClass = avoidProtectedHack() && metaClass->hasProtectedMembers(); + QString className; + if (!context.forSmartPointer()) { + className = useWrapperClass + ? wrapperName(metaClass) + : (QLatin1String("::") + metaClass->qualifiedCppName()); + } else { + className = context.preciseType()->cppSignature(); + } + + QString cppSelfAttribution; + QString pythonSelfVar = QLatin1String(PYTHON_SELF_VAR); + QString cpythonWrapperCPtrResult; + if (!context.forSmartPointer()) + cpythonWrapperCPtrResult = cpythonWrapperCPtr(metaClass, pythonSelfVar); + else + cpythonWrapperCPtrResult = cpythonWrapperCPtr(context.preciseType(), pythonSelfVar); + + if (cppSelfAsReference) { + QString cast = useWrapperClass ? QString::fromLatin1("(%1*)").arg(className) : QString(); + cppSelfAttribution = QString::fromLatin1("%1& %2 = *(%3%4)") + .arg(className, QLatin1String(CPP_SELF_VAR), cast, + cpythonWrapperCPtrResult); + } else { + s << INDENT << className << "* " CPP_SELF_VAR " = 0;" << endl; + writeUnusedVariableCast(s, QLatin1String(CPP_SELF_VAR)); + cppSelfAttribution = QString::fromLatin1("%1 = %2%3") + .arg(QLatin1String(CPP_SELF_VAR), + (useWrapperClass ? QString::fromLatin1("(%1*)").arg(className) : QString()), + cpythonWrapperCPtrResult); + } + + // Checks if the underlying C++ object is valid. + if (hasStaticOverload && !cppSelfAsReference) { + s << INDENT << "if (" PYTHON_SELF_VAR ") {" << endl; + { + Indentation indent(INDENT); + writeInvalidPyObjectCheck(s, QLatin1String(PYTHON_SELF_VAR)); + s << INDENT << cppSelfAttribution << ';' << endl; + } + s << INDENT << '}' << endl; + return; + } + + writeInvalidPyObjectCheck(s, QLatin1String(PYTHON_SELF_VAR)); + s << INDENT << cppSelfAttribution << ';' << endl; +} + +void CppGenerator::writeCppSelfDefinition(QTextStream &s, + const AbstractMetaFunction *func, + GeneratorContext &context, + bool hasStaticOverload) +{ + if (!func->ownerClass() || func->isConstructor()) + return; + + if (func->isOperatorOverload() && func->isBinaryOperator()) { + QString checkFunc = cpythonCheckFunction(func->ownerClass()->typeEntry()); + s << INDENT << "bool isReverse = " << checkFunc << PYTHON_ARG ")" << endl; + { + Indentation indent1(INDENT); + Indentation indent2(INDENT); + Indentation indent3(INDENT); + Indentation indent4(INDENT); + s << INDENT << "&& !" << checkFunc << PYTHON_SELF_VAR ");" << endl; + } + s << INDENT << "if (isReverse)" << endl; + Indentation indent(INDENT); + s << INDENT << "std::swap(" PYTHON_SELF_VAR ", " PYTHON_ARG ");" << endl; + } + + writeCppSelfDefinition(s, context, hasStaticOverload); +} + +void CppGenerator::writeErrorSection(QTextStream& s, OverloadData& overloadData) +{ + const AbstractMetaFunction* rfunc = overloadData.referenceFunction(); + s << endl << INDENT << cpythonFunctionName(rfunc) << "_TypeError:" << endl; + Indentation indentation(INDENT); + QString funcName = fullPythonFunctionName(rfunc); + + QString argsVar = pythonFunctionWrapperUsesListOfArguments(overloadData) + ? QLatin1String("args") : QLatin1String(PYTHON_ARG); + if (verboseErrorMessagesDisabled()) { + s << INDENT << "Shiboken::setErrorAboutWrongArguments(" << argsVar << ", \"" << funcName << "\", 0);" << endl; + } else { + QStringList overloadSignatures; + const OverloadData::MetaFunctionList &overloads = overloadData.overloads(); + for (const AbstractMetaFunction *f : overloads) { + QStringList args; + const AbstractMetaArgumentList &arguments = f->arguments(); + for (AbstractMetaArgument *arg : arguments) { + QString strArg; + AbstractMetaType* argType = arg->type(); + if (isCString(argType)) { + strArg = QLatin1String("\" SBK_STR_NAME \""); + } else if (argType->isPrimitive()) { + const PrimitiveTypeEntry* ptp = reinterpret_cast<const PrimitiveTypeEntry*>(argType->typeEntry()); + while (ptp->referencedTypeEntry()) + ptp = ptp->referencedTypeEntry(); + strArg = ptp->name(); + if (strArg == QLatin1String("QString")) { + strArg = QLatin1String("unicode"); + } else if (strArg == QLatin1String("QChar")) { + strArg = QLatin1String("1-unicode"); + } else { + strArg = ptp->name(); + static const QRegularExpression regex(QStringLiteral("^signed\\s+")); + Q_ASSERT(regex.isValid()); + strArg.remove(regex); + if (strArg == QLatin1String("double")) + strArg = QLatin1String("float"); + } + } else if (argType->typeEntry()->isContainer()) { + strArg = argType->fullName(); + if (strArg == QLatin1String("QList") || strArg == QLatin1String("QVector") + || strArg == QLatin1String("QLinkedList") || strArg == QLatin1String("QStack") + || strArg == QLatin1String("QQueue")) { + strArg = QLatin1String("list"); + } else if (strArg == QLatin1String("QMap") || strArg == QLatin1String("QHash") + || strArg == QLatin1String("QMultiMap") || strArg == QLatin1String("QMultiHash")) { + strArg = QLatin1String("dict"); + } else if (strArg == QLatin1String("QPair")) { + strArg = QLatin1String("2-tuple"); + } + } else { + strArg = argType->fullName(); + if (strArg == QLatin1String("PyUnicode")) + strArg = QLatin1String("unicode"); + else if (strArg == QLatin1String("PyString")) + strArg = QLatin1String("str"); + else if (strArg == QLatin1String("PyBytes")) + strArg = QLatin1String("\" SBK_STR_NAME \""); + else if (strArg == QLatin1String("PySequece")) + strArg = QLatin1String("list"); + else if (strArg == QLatin1String("PyTuple")) + strArg = QLatin1String("tuple"); + else if (strArg == QLatin1String("PyDict")) + strArg = QLatin1String("dict"); + else if (strArg == QLatin1String("PyObject")) + strArg = QLatin1String("object"); + else if (strArg == QLatin1String("PyCallable")) + strArg = QLatin1String("callable"); + else if (strArg == QLatin1String("uchar")) + strArg = QLatin1String("buffer"); // This depends on an inject code to be true, but if it's not true + // the function wont work at all, so it must be true. + } + if (!arg->defaultValueExpression().isEmpty()) { + strArg += QLatin1String(" = "); + if ((isCString(argType) || isPointerToWrapperType(argType)) + && arg->defaultValueExpression() == QLatin1String("0")) { + strArg += QLatin1String("None"); + } else { + QString e = arg->defaultValueExpression(); + e.replace(QLatin1String("::"), QLatin1String(".")); + e.replace(QLatin1String("\""), QLatin1String("\\\"")); + strArg += e; + } + } + args << strArg; + } + overloadSignatures << QLatin1Char('"') + args.join(QLatin1String(", ")) + QLatin1Char('"'); + } + s << INDENT << "const char* overloads[] = {" << overloadSignatures.join(QLatin1String(", ")) + << ", 0};" << endl; + s << INDENT << "Shiboken::setErrorAboutWrongArguments(" << argsVar << ", \"" << funcName << "\", overloads);" << endl; + } + s << INDENT << "return " << m_currentErrorCode << ';' << endl; +} + +void CppGenerator::writeFunctionReturnErrorCheckSection(QTextStream& s, bool hasReturnValue) +{ + s << INDENT << "if (PyErr_Occurred()" << (hasReturnValue ? " || !" PYTHON_RETURN_VAR : "") << ") {" << endl; + { + Indentation indent(INDENT); + if (hasReturnValue) + s << INDENT << "Py_XDECREF(" PYTHON_RETURN_VAR ");" << endl; + s << INDENT << "return " << m_currentErrorCode << ';' << endl; + } + s << INDENT << '}' << endl; +} + +void CppGenerator::writeInvalidPyObjectCheck(QTextStream& s, const QString& pyObj) +{ + s << INDENT << "if (!Shiboken::Object::isValid(" << pyObj << "))" << endl; + Indentation indent(INDENT); + s << INDENT << "return " << m_currentErrorCode << ';' << endl; +} + +static QString pythonToCppConverterForArgumentName(const QString& argumentName) +{ + static const QRegularExpression pyArgsRegex(QLatin1String(PYTHON_ARGS"(\\[\\d+[-]?\\d*\\])")); + Q_ASSERT(pyArgsRegex.isValid()); + const QRegularExpressionMatch match = pyArgsRegex.match(argumentName); + QString result = QLatin1String(PYTHON_TO_CPP_VAR); + if (match.hasMatch()) + result += match.captured(1); + return result; +} + +void CppGenerator::writeTypeCheck(QTextStream& s, const AbstractMetaType* argType, QString argumentName, bool isNumber, QString customType, bool rejectNull) +{ + QString customCheck; + if (!customType.isEmpty()) { + AbstractMetaType* metaType; + customCheck = guessCPythonCheckFunction(customType, &metaType); + if (metaType) + argType = metaType; + } + + // TODO-CONVERTER: merge this with the code below. + QString typeCheck; + if (customCheck.isEmpty()) + typeCheck = cpythonIsConvertibleFunction(argType, argType->isEnum() ? false : isNumber); + else + typeCheck = customCheck; + typeCheck.append(QString::fromLatin1("(%1)").arg(argumentName)); + + // TODO-CONVERTER ----------------------------------------------------------------------- + if (customCheck.isEmpty() && !argType->typeEntry()->isCustom()) { + typeCheck = QString::fromLatin1("(%1 = %2))").arg(pythonToCppConverterForArgumentName(argumentName), typeCheck); + if (!isNumber && argType->typeEntry()->isCppPrimitive()) + typeCheck.prepend(QString::fromLatin1("%1(%2) && ").arg(cpythonCheckFunction(argType), argumentName)); + } + // TODO-CONVERTER ----------------------------------------------------------------------- + + if (rejectNull) + typeCheck = QString::fromLatin1("(%1 != Py_None && %2)").arg(argumentName, typeCheck); + + s << typeCheck; +} + +static void checkTypeViability(const AbstractMetaFunction* func, const AbstractMetaType* type, int argIdx) +{ + if (!type + || !type->typeEntry()->isPrimitive() + || type->indirections() == 0 + || ShibokenGenerator::isCString(type) + || func->argumentRemoved(argIdx) + || !func->typeReplaced(argIdx).isEmpty() + || !func->conversionRule(TypeSystem::All, argIdx).isEmpty() + || func->hasInjectedCode()) + return; + QString prefix; + if (func->ownerClass()) + prefix = func->ownerClass()->qualifiedCppName() + QLatin1String("::"); + qCWarning(lcShiboken).noquote().nospace() + << QString::fromLatin1("There's no user provided way (conversion rule, argument removal, custom code, etc) " + "to handle the primitive %1 type '%2' in function '%3%4'.") + .arg(argIdx == 0 ? QStringLiteral("return") : QStringLiteral("argument"), + type->cppSignature(), prefix, func->signature()); +} + +static void checkTypeViability(const AbstractMetaFunction* func) +{ + if (func->isUserAdded()) + return; + const AbstractMetaType* type = func->type(); + checkTypeViability(func, type, 0); + for (int i = 0; i < func->arguments().count(); ++i) + checkTypeViability(func, func->arguments().at(i)->type(), i + 1); +} + +void CppGenerator::writeTypeCheck(QTextStream& s, const OverloadData* overloadData, QString argumentName) +{ + QSet<const TypeEntry*> numericTypes; + const OverloadDataList &overloads = overloadData->previousOverloadData()->nextOverloadData(); + for (OverloadData *od : overloads) { + const OverloadData::MetaFunctionList &odOverloads = od->overloads(); + for (const AbstractMetaFunction *func : odOverloads) { + checkTypeViability(func); + const AbstractMetaType* argType = od->argument(func)->type(); + if (!argType->isPrimitive()) + continue; + if (ShibokenGenerator::isNumber(argType->typeEntry())) + numericTypes << argType->typeEntry(); + } + } + + // This condition trusts that the OverloadData object will arrange for + // PyInt type to come after the more precise numeric types (e.g. float and bool) + const AbstractMetaType* argType = overloadData->argType(); + bool numberType = numericTypes.count() == 1 || ShibokenGenerator::isPyInt(argType); + QString customType = (overloadData->hasArgumentTypeReplace() ? overloadData->argumentTypeReplaced() : QString()); + bool rejectNull = shouldRejectNullPointerArgument(overloadData->referenceFunction(), overloadData->argPos()); + writeTypeCheck(s, argType, argumentName, numberType, customType, rejectNull); +} + +void CppGenerator::writeArgumentConversion(QTextStream& s, + const AbstractMetaType* argType, + const QString& argName, const QString& pyArgName, + const AbstractMetaClass* context, + const QString& defaultValue, + bool castArgumentAsUnused) +{ + if (argType->typeEntry()->isCustom() || argType->typeEntry()->isVarargs()) + return; + if (isWrapperType(argType)) + writeInvalidPyObjectCheck(s, pyArgName); + writePythonToCppTypeConversion(s, argType, pyArgName, argName, context, defaultValue); + if (castArgumentAsUnused) + writeUnusedVariableCast(s, argName); +} + +const AbstractMetaType* CppGenerator::getArgumentType(const AbstractMetaFunction* func, int argPos) +{ + if (argPos < 0 || argPos > func->arguments().size()) { + qCWarning(lcShiboken).noquote().nospace() + << QStringLiteral("Argument index for function '%1' out of range.").arg(func->signature()); + return 0; + } + + const AbstractMetaType* argType = 0; + QString typeReplaced = func->typeReplaced(argPos); + if (typeReplaced.isEmpty()) + argType = (argPos == 0) ? func->type() : func->arguments().at(argPos-1)->type(); + else + argType = buildAbstractMetaTypeFromString(typeReplaced); + if (!argType && !m_knownPythonTypes.contains(typeReplaced)) { + qCWarning(lcShiboken).noquote().nospace() + << QString::fromLatin1("Unknown type '%1' used as argument type replacement "\ + "in function '%2', the generated code may be broken.") + .arg(typeReplaced, func->signature()); + } + return argType; +} + +void CppGenerator::writePythonToCppTypeConversion(QTextStream& s, + const AbstractMetaType* type, + const QString& pyIn, + const QString& cppOut, + const AbstractMetaClass* /* context */, + const QString& defaultValue) +{ + const TypeEntry* typeEntry = type->typeEntry(); + if (typeEntry->isCustom() || typeEntry->isVarargs()) + return; + + QString cppOutAux = cppOut + QLatin1String("_local"); + + bool treatAsPointer = isValueTypeWithCopyConstructorOnly(type); + bool isPointerOrObjectType = (isObjectType(type) || isPointer(type)) && !isUserPrimitive(type) && !isCppPrimitive(type); + bool isNotContainerEnumOrFlags = !typeEntry->isContainer() && !typeEntry->isEnum() && !typeEntry->isFlags(); + bool mayHaveImplicitConversion = type->referenceType() == LValueReference + && !isUserPrimitive(type) + && !isCppPrimitive(type) + && isNotContainerEnumOrFlags + && !(treatAsPointer || isPointerOrObjectType); + QString typeName = getFullTypeNameWithoutModifiers(type); + + bool isProtectedEnum = false; + + if (mayHaveImplicitConversion) { + s << INDENT << typeName << ' ' << cppOutAux; + writeMinimalConstructorExpression(s, type, defaultValue); + s << ';' << endl; + } else if (avoidProtectedHack() && type->typeEntry()->isEnum()) { + const AbstractMetaEnum* metaEnum = findAbstractMetaEnum(type); + if (metaEnum && metaEnum->isProtected()) { + typeName = QLatin1String("long"); + isProtectedEnum = true; + } + } + + s << INDENT << typeName; + if (treatAsPointer || isPointerOrObjectType) { + s << "* " << cppOut; + if (!defaultValue.isEmpty()) + s << " = " << defaultValue; + } else if (type->referenceType() == LValueReference && !typeEntry->isPrimitive() && isNotContainerEnumOrFlags) { + s << "* " << cppOut << " = &" << cppOutAux; + } else { + s << ' ' << cppOut; + if (isProtectedEnum && avoidProtectedHack()) { + s << " = "; + if (defaultValue.isEmpty()) + s << "0"; + else + s << "(long)" << defaultValue; + } else if (isUserPrimitive(type) || typeEntry->isEnum() || typeEntry->isFlags()) { + writeMinimalConstructorExpression(s, typeEntry, defaultValue); + } else if (!type->isContainer() && !type->isSmartPointer()) { + writeMinimalConstructorExpression(s, type, defaultValue); + } + } + s << ';' << endl; + + QString pythonToCppFunc = pythonToCppConverterForArgumentName(pyIn); + + s << INDENT; + if (!defaultValue.isEmpty()) + s << "if (" << pythonToCppFunc << ") "; + + QString pythonToCppCall = QString::fromLatin1("%1(%2, &%3)").arg(pythonToCppFunc, pyIn, cppOut); + if (!mayHaveImplicitConversion) { + s << pythonToCppCall << ';' << endl; + return; + } + + if (!defaultValue.isEmpty()) + s << '{' << endl << INDENT; + + s << "if (Shiboken::Conversions::isImplicitConversion(reinterpret_cast<const SbkObjectType *>(" + << cpythonTypeNameExt(type) << "), " << pythonToCppFunc << "))" << endl; + { + Indentation indent(INDENT); + s << INDENT << pythonToCppFunc << '(' << pyIn << ", &" << cppOutAux << ");" << endl; + } + s << INDENT << "else" << endl; + { + Indentation indent(INDENT); + s << INDENT << pythonToCppCall << ';' << endl; + } + + if (!defaultValue.isEmpty()) + s << INDENT << '}'; + s << endl; +} + +static void addConversionRuleCodeSnippet(CodeSnipList& snippetList, QString& rule, + TypeSystem::Language /* conversionLanguage */, + TypeSystem::Language snippetLanguage, + QString outputName = QString(), + QString inputName = QString()) +{ + if (rule.isEmpty()) + return; + if (snippetLanguage == TypeSystem::TargetLangCode) { + rule.replace(QLatin1String("%in"), inputName); + rule.replace(QLatin1String("%out"), outputName + QLatin1String("_out")); + } else { + rule.replace(QLatin1String("%out"), outputName); + } + CodeSnip snip(0, snippetLanguage); + snip.position = (snippetLanguage == TypeSystem::NativeCode) ? TypeSystem::CodeSnipPositionAny : TypeSystem::CodeSnipPositionBeginning; + snip.addCode(rule); + snippetList << snip; +} + +void CppGenerator::writeConversionRule(QTextStream& s, const AbstractMetaFunction* func, TypeSystem::Language language) +{ + CodeSnipList snippets; + const AbstractMetaArgumentList &arguments = func->arguments(); + for (AbstractMetaArgument *arg : arguments) { + QString rule = func->conversionRule(language, arg->argumentIndex() + 1); + addConversionRuleCodeSnippet(snippets, rule, language, TypeSystem::TargetLangCode, + arg->name(), arg->name()); + } + writeCodeSnips(s, snippets, TypeSystem::CodeSnipPositionBeginning, TypeSystem::TargetLangCode, func); +} + +void CppGenerator::writeConversionRule(QTextStream& s, const AbstractMetaFunction* func, TypeSystem::Language language, const QString& outputVar) +{ + CodeSnipList snippets; + QString rule = func->conversionRule(language, 0); + addConversionRuleCodeSnippet(snippets, rule, language, language, outputVar); + writeCodeSnips(s, snippets, TypeSystem::CodeSnipPositionAny, language, func); +} + +void CppGenerator::writeNoneReturn(QTextStream& s, const AbstractMetaFunction* func, bool thereIsReturnValue) +{ + if (thereIsReturnValue && (!func->type() || func->argumentRemoved(0)) && !injectedCodeHasReturnValueAttribution(func)) { + s << INDENT << PYTHON_RETURN_VAR " = Py_None;" << endl; + s << INDENT << "Py_INCREF(Py_None);" << endl; + } +} + +void CppGenerator::writeOverloadedFunctionDecisor(QTextStream& s, const OverloadData& overloadData) +{ + s << INDENT << "// Overloaded function decisor" << endl; + const AbstractMetaFunction* rfunc = overloadData.referenceFunction(); + const OverloadData::MetaFunctionList &functionOverloads = overloadData.overloadsWithoutRepetition(); + for (int i = 0; i < functionOverloads.count(); i++) + s << INDENT << "// " << i << ": " << functionOverloads.at(i)->minimalSignature() << endl; + writeOverloadedFunctionDecisorEngine(s, &overloadData); + s << endl; + + // Ensure that the direct overload that called this reverse + // is called. + if (rfunc->isOperatorOverload() && !rfunc->isCallOperator()) { + s << INDENT << "if (isReverse && overloadId == -1) {" << endl; + { + Indentation indent(INDENT); + s << INDENT << "PyErr_SetString(PyExc_NotImplementedError, \"reverse operator not implemented.\");" << endl; + s << INDENT << "return 0;" << endl; + } + s << INDENT << "}" << endl << endl; + } + + s << INDENT << "// Function signature not found." << endl; + s << INDENT << "if (overloadId == -1) goto " << cpythonFunctionName(overloadData.referenceFunction()) << "_TypeError;" << endl; + s << endl; +} + +void CppGenerator::writeOverloadedFunctionDecisorEngine(QTextStream& s, const OverloadData* parentOverloadData) +{ + bool hasDefaultCall = parentOverloadData->nextArgumentHasDefaultValue(); + const AbstractMetaFunction* referenceFunction = parentOverloadData->referenceFunction(); + + // If the next argument has not an argument with a default value, it is still possible + // that one of the overloads for the current overload data has its final occurrence here. + // If found, the final occurrence of a method is attributed to the referenceFunction + // variable to be used further on this method on the conditional that identifies default + // method calls. + if (!hasDefaultCall) { + const OverloadData::MetaFunctionList &overloads = parentOverloadData->overloads(); + for (const AbstractMetaFunction *func : overloads) { + if (parentOverloadData->isFinalOccurrence(func)) { + referenceFunction = func; + hasDefaultCall = true; + break; + } + } + } + + int maxArgs = parentOverloadData->maxArgs(); + // Python constructors always receive multiple arguments. + bool usePyArgs = pythonFunctionWrapperUsesListOfArguments(*parentOverloadData); + + // Functions without arguments are identified right away. + if (maxArgs == 0) { + s << INDENT << "overloadId = " << parentOverloadData->headOverloadData()->overloads().indexOf(referenceFunction); + s << "; // " << referenceFunction->minimalSignature() << endl; + return; + + // To decide if a method call is possible at this point the current overload + // data object cannot be the head, since it is just an entry point, or a root, + // for the tree of arguments and it does not represent a valid method call. + } else if (!parentOverloadData->isHeadOverloadData()) { + bool isLastArgument = parentOverloadData->nextOverloadData().isEmpty(); + bool signatureFound = parentOverloadData->overloads().size() == 1; + + // The current overload data describes the last argument of a signature, + // so the method can be identified right now. + if (isLastArgument || (signatureFound && !hasDefaultCall)) { + const AbstractMetaFunction* func = parentOverloadData->referenceFunction(); + s << INDENT << "overloadId = " << parentOverloadData->headOverloadData()->overloads().indexOf(func); + s << "; // " << func->minimalSignature() << endl; + return; + } + } + + bool isFirst = true; + + // If the next argument has a default value the decisor can perform a method call; + // it just need to check if the number of arguments received from Python are equal + // to the number of parameters preceding the argument with the default value. + const OverloadDataList &overloads = parentOverloadData->nextOverloadData(); + if (hasDefaultCall) { + isFirst = false; + int numArgs = parentOverloadData->argPos() + 1; + s << INDENT << "if (numArgs == " << numArgs << ") {" << endl; + { + Indentation indent(INDENT); + const AbstractMetaFunction* func = referenceFunction; + for (OverloadData *overloadData : overloads) { + const AbstractMetaFunction* defValFunc = overloadData->getFunctionWithDefaultValue(); + if (defValFunc) { + func = defValFunc; + break; + } + } + s << INDENT << "overloadId = " << parentOverloadData->headOverloadData()->overloads().indexOf(func); + s << "; // " << func->minimalSignature() << endl; + } + s << INDENT << '}'; + } + + for (OverloadData *overloadData : overloads) { + bool signatureFound = overloadData->overloads().size() == 1 + && !overloadData->getFunctionWithDefaultValue() + && !overloadData->findNextArgWithDefault(); + + const AbstractMetaFunction* refFunc = overloadData->referenceFunction(); + + QStringList typeChecks; + QString pyArgName = (usePyArgs && maxArgs > 1) + ? QString::fromLatin1(PYTHON_ARGS "[%1]").arg(overloadData->argPos()) + : QLatin1String(PYTHON_ARG); + OverloadData* od = overloadData; + int startArg = od->argPos(); + int sequenceArgCount = 0; + while (od && !od->argType()->isVarargs()) { + bool typeReplacedByPyObject = od->argumentTypeReplaced() == QLatin1String("PyObject"); + if (!typeReplacedByPyObject) { + if (usePyArgs) + pyArgName = QString::fromLatin1(PYTHON_ARGS "[%1]").arg(od->argPos()); + QString typeCheck; + QTextStream tck(&typeCheck); + const AbstractMetaFunction* func = od->referenceFunction(); + + if (func->isConstructor() && func->arguments().count() == 1) { + const AbstractMetaClass* ownerClass = func->ownerClass(); + const ComplexTypeEntry* baseContainerType = ownerClass->typeEntry()->baseContainerType(); + if (baseContainerType && baseContainerType == func->arguments().first()->type()->typeEntry() && isCopyable(ownerClass)) { + tck << '!' << cpythonCheckFunction(ownerClass->typeEntry()) << pyArgName << ')' << endl; + Indentation indent(INDENT); + tck << INDENT << "&& "; + } + } + writeTypeCheck(tck, od, pyArgName); + typeChecks << typeCheck; + } + + sequenceArgCount++; + + if (od->nextOverloadData().isEmpty() + || od->nextArgumentHasDefaultValue() + || od->nextOverloadData().size() != 1 + || od->overloads().size() != od->nextOverloadData().first()->overloads().size()) { + overloadData = od; + od = 0; + } else { + od = od->nextOverloadData().first(); + } + } + + if (usePyArgs && signatureFound) { + AbstractMetaArgumentList args = refFunc->arguments(); + int lastArgIsVarargs = (int) (args.size() > 1 && args.last()->type()->isVarargs()); + int numArgs = args.size() - OverloadData::numberOfRemovedArguments(refFunc) - lastArgIsVarargs; + typeChecks.prepend(QString::fromLatin1("numArgs %1 %2").arg(lastArgIsVarargs ? QLatin1String(">=") : QLatin1String("==")).arg(numArgs)); + } else if (sequenceArgCount > 1) { + typeChecks.prepend(QString::fromLatin1("numArgs >= %1").arg(startArg + sequenceArgCount)); + } else if (refFunc->isOperatorOverload() && !refFunc->isCallOperator()) { + typeChecks.prepend(QString::fromLatin1("%1isReverse").arg(refFunc->isReverseOperator() ? QString() : QLatin1String("!"))); + } + + if (isFirst) { + isFirst = false; + s << INDENT; + } else { + s << " else "; + } + s << "if ("; + if (typeChecks.isEmpty()) { + s << "true"; + } else { + Indentation indent(INDENT); + QString separator; + QTextStream sep(&separator); + sep << endl << INDENT << "&& "; + s << typeChecks.join(separator); + } + s << ") {" << endl; + { + Indentation indent(INDENT); + writeOverloadedFunctionDecisorEngine(s, overloadData); + } + s << INDENT << "}"; + } + s << endl; +} + +void CppGenerator::writeFunctionCalls(QTextStream &s, const OverloadData &overloadData, + GeneratorContext &context) +{ + const OverloadData::MetaFunctionList &overloads = overloadData.overloadsWithoutRepetition(); + s << INDENT << "// Call function/method" << endl; + s << INDENT << (overloads.count() > 1 ? "switch (overloadId) " : "") << '{' << endl; + { + Indentation indent(INDENT); + if (overloads.count() == 1) { + writeSingleFunctionCall(s, overloadData, overloads.first(), context); + } else { + for (int i = 0; i < overloads.count(); i++) { + const AbstractMetaFunction* func = overloads.at(i); + s << INDENT << "case " << i << ": // " << func->signature() << endl; + s << INDENT << '{' << endl; + { + Indentation indent(INDENT); + writeSingleFunctionCall(s, overloadData, func, context); + s << INDENT << "break;" << endl; + } + s << INDENT << '}' << endl; + } + } + } + s << INDENT << '}' << endl; +} + +void CppGenerator::writeSingleFunctionCall(QTextStream &s, + const OverloadData &overloadData, + const AbstractMetaFunction *func, + GeneratorContext &context) +{ + if (func->isDeprecated()) { + s << INDENT << "Shiboken::warning(PyExc_DeprecationWarning, 1, \"Function: '" + << func->signature().replace(QLatin1String("::"), QLatin1String(".")) + << "' is marked as deprecated, please check the documentation for more information.\");" << endl; + } + + if (func->functionType() == AbstractMetaFunction::EmptyFunction) { + s << INDENT << "PyErr_Format(PyExc_TypeError, \"%s is a private method.\", \"" + << func->signature().replace(QLatin1String("::"), QLatin1String(".")) + << "\");" << endl; + s << INDENT << "return " << m_currentErrorCode << ';' << endl; + return; + } + + bool usePyArgs = pythonFunctionWrapperUsesListOfArguments(overloadData); + + // Handle named arguments. + writeNamedArgumentResolution(s, func, usePyArgs); + + bool injectCodeCallsFunc = injectedCodeCallsCppFunction(func); + bool mayHaveUnunsedArguments = !func->isUserAdded() && func->hasInjectedCode() && injectCodeCallsFunc; + int removedArgs = 0; + for (int argIdx = 0; argIdx < func->arguments().count(); ++argIdx) { + bool hasConversionRule = !func->conversionRule(TypeSystem::NativeCode, argIdx + 1).isEmpty(); + const AbstractMetaArgument* arg = func->arguments().at(argIdx); + if (func->argumentRemoved(argIdx + 1)) { + if (!arg->defaultValueExpression().isEmpty()) { + QString cppArgRemoved = QString::fromLatin1(CPP_ARG_REMOVED "%1").arg(argIdx); + s << INDENT << getFullTypeName(arg->type()) << ' ' << cppArgRemoved; + s << " = " << guessScopeForDefaultValue(func, arg) << ';' << endl; + writeUnusedVariableCast(s, cppArgRemoved); + } else if (!injectCodeCallsFunc && !func->isUserAdded() && !hasConversionRule) { + // When an argument is removed from a method signature and no other means of calling + // the method are provided (as with code injection) the generator must abort. + qFatal(qPrintable(QString::fromLatin1("No way to call '%1::%2' with the modifications described in the type system.") + .arg(func->ownerClass()->name(), func->signature())), NULL); + } + removedArgs++; + continue; + } + if (hasConversionRule) + continue; + const AbstractMetaType* argType = getArgumentType(func, argIdx + 1); + if (!argType || (mayHaveUnunsedArguments && !injectedCodeUsesArgument(func, argIdx))) + continue; + int argPos = argIdx - removedArgs; + QString argName = QString::fromLatin1(CPP_ARG"%1").arg(argPos); + QString pyArgName = usePyArgs ? QString::fromLatin1(PYTHON_ARGS "[%1]").arg(argPos) : QLatin1String(PYTHON_ARG); + QString defaultValue = guessScopeForDefaultValue(func, arg); + writeArgumentConversion(s, argType, argName, pyArgName, func->implementingClass(), defaultValue, func->isUserAdded()); + } + + s << endl; + + int numRemovedArgs = OverloadData::numberOfRemovedArguments(func); + + s << INDENT << "if (!PyErr_Occurred()) {" << endl; + { + Indentation indentation(INDENT); + writeMethodCall(s, func, context, func->arguments().size() - numRemovedArgs); + if (!func->isConstructor()) + writeNoneReturn(s, func, overloadData.hasNonVoidReturnType()); + } + s << INDENT << '}' << endl; +} + +QString CppGenerator::cppToPythonFunctionName(const QString& sourceTypeName, QString targetTypeName) +{ + if (targetTypeName.isEmpty()) + targetTypeName = sourceTypeName; + return QString::fromLatin1("%1_CppToPython_%2").arg(sourceTypeName, targetTypeName); +} + +QString CppGenerator::pythonToCppFunctionName(const QString& sourceTypeName, const QString& targetTypeName) +{ + return QString::fromLatin1("%1_PythonToCpp_%2").arg(sourceTypeName, targetTypeName); +} +QString CppGenerator::pythonToCppFunctionName(const AbstractMetaType* sourceType, const AbstractMetaType* targetType) +{ + return pythonToCppFunctionName(fixedCppTypeName(sourceType), fixedCppTypeName(targetType)); +} +QString CppGenerator::pythonToCppFunctionName(const CustomConversion::TargetToNativeConversion* toNative, + const TypeEntry* targetType) +{ + return pythonToCppFunctionName(fixedCppTypeName(toNative), fixedCppTypeName(targetType)); +} + +QString CppGenerator::convertibleToCppFunctionName(const QString& sourceTypeName, const QString& targetTypeName) +{ + return QString::fromLatin1("is_%1_PythonToCpp_%2_Convertible").arg(sourceTypeName, targetTypeName); +} +QString CppGenerator::convertibleToCppFunctionName(const AbstractMetaType* sourceType, const AbstractMetaType* targetType) +{ + return convertibleToCppFunctionName(fixedCppTypeName(sourceType), fixedCppTypeName(targetType)); +} +QString CppGenerator::convertibleToCppFunctionName(const CustomConversion::TargetToNativeConversion* toNative, + const TypeEntry* targetType) +{ + return convertibleToCppFunctionName(fixedCppTypeName(toNative), fixedCppTypeName(targetType)); +} + +void CppGenerator::writeCppToPythonFunction(QTextStream& s, const QString& code, const QString& sourceTypeName, QString targetTypeName) +{ + QString prettyCode; + QTextStream c(&prettyCode); + formatCode(c, code, INDENT); + processCodeSnip(prettyCode); + + s << "static PyObject* " << cppToPythonFunctionName(sourceTypeName, targetTypeName); + s << "(const void* cppIn) {" << endl; + s << prettyCode; + s << '}' << endl; +} + +static void replaceCppToPythonVariables(QString& code, const QString& typeName) +{ + code.prepend(QString::fromLatin1("%1& cppInRef = *((%1*)cppIn);\n").arg(typeName)); + code.replace(QLatin1String("%INTYPE"), typeName); + code.replace(QLatin1String("%OUTTYPE"), QLatin1String("PyObject*")); + code.replace(QLatin1String("%in"), QLatin1String("cppInRef")); + code.replace(QLatin1String("%out"), QLatin1String("pyOut")); +} +void CppGenerator::writeCppToPythonFunction(QTextStream& s, const CustomConversion* customConversion) +{ + QString code = customConversion->nativeToTargetConversion(); + replaceCppToPythonVariables(code, getFullTypeName(customConversion->ownerType())); + writeCppToPythonFunction(s, code, fixedCppTypeName(customConversion->ownerType())); +} +void CppGenerator::writeCppToPythonFunction(QTextStream& s, const AbstractMetaType* containerType) +{ + const CustomConversion* customConversion = containerType->typeEntry()->customConversion(); + if (!customConversion) { + qFatal(qPrintable(QString::fromLatin1("Can't write the C++ to Python conversion function for container type '%1' - "\ + "no conversion rule was defined for it in the type system.") + .arg(containerType->typeEntry()->qualifiedCppName())), NULL); + } + if (!containerType->typeEntry()->isContainer()) { + writeCppToPythonFunction(s, customConversion); + return; + } + QString code = customConversion->nativeToTargetConversion(); + for (int i = 0; i < containerType->instantiations().count(); ++i) { + AbstractMetaType* type = containerType->instantiations().at(i); + QString typeName = getFullTypeName(type); + if (type->isConstant()) + typeName = QLatin1String("const ") + typeName; + code.replace(QString::fromLatin1("%INTYPE_%1").arg(i), typeName); + } + replaceCppToPythonVariables(code, getFullTypeNameWithoutModifiers(containerType)); + processCodeSnip(code); + writeCppToPythonFunction(s, code, fixedCppTypeName(containerType)); +} + +void CppGenerator::writePythonToCppFunction(QTextStream& s, const QString& code, const QString& sourceTypeName, const QString& targetTypeName) +{ + QString prettyCode; + QTextStream c(&prettyCode); + formatCode(c, code, INDENT); + processCodeSnip(prettyCode); + s << "static void " << pythonToCppFunctionName(sourceTypeName, targetTypeName); + s << "(PyObject* pyIn, void* cppOut) {" << endl; + s << prettyCode; + s << '}' << endl; +} + +void CppGenerator::writeIsPythonConvertibleToCppFunction(QTextStream& s, + const QString& sourceTypeName, + const QString& targetTypeName, + const QString& condition, + QString pythonToCppFuncName, + bool acceptNoneAsCppNull) +{ + if (pythonToCppFuncName.isEmpty()) + pythonToCppFuncName = pythonToCppFunctionName(sourceTypeName, targetTypeName); + + s << "static PythonToCppFunc " << convertibleToCppFunctionName(sourceTypeName, targetTypeName); + s << "(PyObject* pyIn) {" << endl; + if (acceptNoneAsCppNull) { + s << INDENT << "if (pyIn == Py_None)" << endl; + Indentation indent(INDENT); + s << INDENT << "return Shiboken::Conversions::nonePythonToCppNullPtr;" << endl; + } + s << INDENT << "if (" << condition << ')' << endl; + { + Indentation indent(INDENT); + s << INDENT << "return " << pythonToCppFuncName << ';' << endl; + } + s << INDENT << "return 0;" << endl; + s << '}' << endl; +} + +void CppGenerator::writePythonToCppConversionFunctions(QTextStream& s, + const AbstractMetaType* sourceType, + const AbstractMetaType* targetType, + QString typeCheck, + QString conversion, + QString preConversion) +{ + QString sourcePyType = cpythonTypeNameExt(sourceType); + + // Python to C++ conversion function. + QString code; + QTextStream c(&code); + if (conversion.isEmpty()) + conversion = QLatin1Char('*') + cpythonWrapperCPtr(sourceType->typeEntry(), QLatin1String("pyIn")); + if (!preConversion.isEmpty()) + c << INDENT << preConversion << endl; + c << INDENT << QString::fromLatin1("*((%1*)cppOut) = %1(%2);") + .arg(getFullTypeName(targetType->typeEntry()), conversion); + QString sourceTypeName = fixedCppTypeName(sourceType); + QString targetTypeName = fixedCppTypeName(targetType); + writePythonToCppFunction(s, code, sourceTypeName, targetTypeName); + + // Python to C++ convertible check function. + if (typeCheck.isEmpty()) + typeCheck = QString::fromLatin1("PyObject_TypeCheck(pyIn, %1)").arg(sourcePyType); + writeIsPythonConvertibleToCppFunction(s, sourceTypeName, targetTypeName, typeCheck); + s << endl; +} + +void CppGenerator::writePythonToCppConversionFunctions(QTextStream& s, + const CustomConversion::TargetToNativeConversion* toNative, + const TypeEntry* targetType) +{ + // Python to C++ conversion function. + QString code = toNative->conversion(); + QString inType; + if (toNative->sourceType()) + inType = cpythonTypeNameExt(toNative->sourceType()); + else + inType = QString::fromLatin1("(&%1_Type)").arg(toNative->sourceTypeName()); + code.replace(QLatin1String("%INTYPE"), inType); + code.replace(QLatin1String("%OUTTYPE"), targetType->qualifiedCppName()); + code.replace(QLatin1String("%in"), QLatin1String("pyIn")); + code.replace(QLatin1String("%out"), QString::fromLatin1("*((%1*)cppOut)").arg(getFullTypeName(targetType))); + + QString sourceTypeName = fixedCppTypeName(toNative); + QString targetTypeName = fixedCppTypeName(targetType); + writePythonToCppFunction(s, code, sourceTypeName, targetTypeName); + + // Python to C++ convertible check function. + QString typeCheck = toNative->sourceTypeCheck(); + if (typeCheck.isEmpty()) { + QString pyTypeName = toNative->sourceTypeName(); + if (pyTypeName == QLatin1String("Py_None") || pyTypeName == QLatin1String("PyNone")) + typeCheck = QLatin1String("%in == Py_None"); + else if (pyTypeName == QLatin1String("SbkEnumType")) + typeCheck = QLatin1String("Shiboken::isShibokenEnum(%in)"); + else if (pyTypeName == QLatin1String("SbkObject")) + typeCheck = QLatin1String("Shiboken::Object::checkType(%in)"); + else if (pyTypeName == QLatin1String("PyTypeObject")) + typeCheck = QLatin1String("PyType_Check(%in)"); + else if (pyTypeName == QLatin1String("PyObject")) + typeCheck = QLatin1String("PyObject_TypeCheck(%in, &PyBaseObject_Type)"); + else if (pyTypeName.startsWith(QLatin1String("Py"))) + typeCheck = pyTypeName + QLatin1String("_Check(%in)"); + } + if (typeCheck.isEmpty()) { + if (!toNative->sourceType() || toNative->sourceType()->isPrimitive()) { + qFatal(qPrintable(QString::fromLatin1("User added implicit conversion for C++ type '%1' must provide either an input "\ + "type check function or a non primitive type entry.") + .arg(targetType->qualifiedCppName())), NULL); + + } + typeCheck = QString::fromLatin1("PyObject_TypeCheck(%in, %1)").arg(cpythonTypeNameExt(toNative->sourceType())); + } + typeCheck.replace(QLatin1String("%in"), QLatin1String("pyIn")); + processCodeSnip(typeCheck); + writeIsPythonConvertibleToCppFunction(s, sourceTypeName, targetTypeName, typeCheck); +} + +void CppGenerator::writePythonToCppConversionFunctions(QTextStream& s, const AbstractMetaType* containerType) +{ + const CustomConversion* customConversion = containerType->typeEntry()->customConversion(); + if (!customConversion) { + //qFatal + return; + } + const CustomConversion::TargetToNativeConversions& toCppConversions = customConversion->targetToNativeConversions(); + if (toCppConversions.isEmpty()) { + //qFatal + return; + } + // Python to C++ conversion function. + QString cppTypeName = getFullTypeNameWithoutModifiers(containerType); + QString code; + QTextStream c(&code); + c << INDENT << QString::fromLatin1("%1& cppOutRef = *((%1*)cppOut);").arg(cppTypeName) << endl; + code.append(toCppConversions.first()->conversion()); + for (int i = 0; i < containerType->instantiations().count(); ++i) { + const AbstractMetaType* type = containerType->instantiations().at(i); + QString typeName = getFullTypeName(type); + if (type->isValue() && isValueTypeWithCopyConstructorOnly(type)) { + static const QRegularExpression regex(QLatin1String(CONVERTTOCPP_REGEX)); + Q_ASSERT(regex.isValid()); + for (int pos = 0; ; ) { + const QRegularExpressionMatch match = regex.match(code, pos); + if (!match.hasMatch()) + break; + pos = match.capturedEnd(); + const QString varName = match.captured(1); + QString rightCode = code.mid(pos); + rightCode.replace(varName, QLatin1Char('*') + varName); + code.replace(pos, code.size() - pos, rightCode); + } + typeName.append(QLatin1Char('*')); + } + code.replace(QString::fromLatin1("%OUTTYPE_%1").arg(i), typeName); + } + code.replace(QLatin1String("%OUTTYPE"), cppTypeName); + code.replace(QLatin1String("%in"), QLatin1String("pyIn")); + code.replace(QLatin1String("%out"), QLatin1String("cppOutRef")); + QString typeName = fixedCppTypeName(containerType); + writePythonToCppFunction(s, code, typeName, typeName); + + // Python to C++ convertible check function. + QString typeCheck = cpythonCheckFunction(containerType); + if (typeCheck.isEmpty()) + typeCheck = QLatin1String("false"); + else + typeCheck = QString::fromLatin1("%1pyIn)").arg(typeCheck); + writeIsPythonConvertibleToCppFunction(s, typeName, typeName, typeCheck); + s << endl; +} + +void CppGenerator::writeAddPythonToCppConversion(QTextStream& s, const QString& converterVar, const QString& pythonToCppFunc, const QString& isConvertibleFunc) +{ + s << INDENT << "Shiboken::Conversions::addPythonToCppValueConversion(" << converterVar << ',' << endl; + { + Indentation indent(INDENT); + s << INDENT << pythonToCppFunc << ',' << endl; + s << INDENT << isConvertibleFunc; + } + s << ");" << endl; +} + +void CppGenerator::writeNamedArgumentResolution(QTextStream& s, const AbstractMetaFunction* func, bool usePyArgs) +{ + const AbstractMetaArgumentList &args = OverloadData::getArgumentsWithDefaultValues(func); + if (args.isEmpty()) + return; + + QString pyErrString(QLatin1String("PyErr_SetString(PyExc_TypeError, \"") + fullPythonFunctionName(func) + + QLatin1String("(): got multiple values for keyword argument '%1'.\");")); + + s << INDENT << "if (kwds) {" << endl; + { + Indentation indent(INDENT); + s << INDENT << "PyObject* "; + for (const AbstractMetaArgument *arg : args) { + int pyArgIndex = arg->argumentIndex() - OverloadData::numberOfRemovedArguments(func, arg->argumentIndex()); + QString pyArgName = usePyArgs + ? QString::fromLatin1(PYTHON_ARGS "[%1]").arg(pyArgIndex) + : QLatin1String(PYTHON_ARG); + s << "value = PyDict_GetItemString(kwds, \"" << arg->name() << "\");" << endl; + s << INDENT << "if (value && " << pyArgName << ") {" << endl; + { + Indentation indent(INDENT); + s << INDENT << pyErrString.arg(arg->name()) << endl; + s << INDENT << "return " << m_currentErrorCode << ';' << endl; + } + s << INDENT << "} else if (value) {" << endl; + { + Indentation indent(INDENT); + s << INDENT << pyArgName << " = value;" << endl; + s << INDENT << "if (!"; + writeTypeCheck(s, arg->type(), pyArgName, isNumber(arg->type()->typeEntry()), func->typeReplaced(arg->argumentIndex() + 1)); + s << ')' << endl; + { + Indentation indent(INDENT); + s << INDENT << "goto " << cpythonFunctionName(func) << "_TypeError;" << endl; + } + } + s << INDENT << '}' << endl; + if (arg != args.last()) + s << INDENT; + } + } + s << INDENT << '}' << endl; +} + +QString CppGenerator::argumentNameFromIndex(const AbstractMetaFunction* func, int argIndex, const AbstractMetaClass** wrappedClass) +{ + *wrappedClass = 0; + QString pyArgName; + if (argIndex == -1) { + pyArgName = QLatin1String(PYTHON_SELF_VAR); + *wrappedClass = func->implementingClass(); + } else if (argIndex == 0) { + AbstractMetaType *funcType = func->type(); + AbstractMetaType *returnType = getTypeWithoutContainer(funcType); + if (returnType) { + pyArgName = QLatin1String(PYTHON_RETURN_VAR); + *wrappedClass = AbstractMetaClass::findClass(classes(), returnType->typeEntry()->name()); + } else { + QString message = QLatin1String("Invalid Argument index (0, return value) on function modification: ") + + (funcType ? funcType->name() : QLatin1String("void")) + QLatin1Char(' '); + if (const AbstractMetaClass *declaringClass = func->declaringClass()) + message += declaringClass->name() + QLatin1String("::"); + message += func->name() + QLatin1String("()"); + qCWarning(lcShiboken).noquote().nospace() << message; + } + } else { + int realIndex = argIndex - 1 - OverloadData::numberOfRemovedArguments(func, argIndex - 1); + AbstractMetaType* argType = getTypeWithoutContainer(func->arguments().at(realIndex)->type()); + + if (argType) { + *wrappedClass = AbstractMetaClass::findClass(classes(), argType->typeEntry()->name()); + if (argIndex == 1 + && !func->isConstructor() + && OverloadData::isSingleArgument(getFunctionGroups(func->implementingClass())[func->name()])) + pyArgName = QLatin1String(PYTHON_ARG); + else + pyArgName = QString::fromLatin1(PYTHON_ARGS "[%1]").arg(argIndex - 1); + } + } + return pyArgName; +} + +void CppGenerator::writeMethodCall(QTextStream &s, const AbstractMetaFunction *func, + GeneratorContext &context, int maxArgs) +{ + s << INDENT << "// " << func->minimalSignature() << (func->isReverseOperator() ? " [reverse operator]": "") << endl; + if (func->isConstructor()) { + const CodeSnipList &snips = func->injectedCodeSnips(); + for (const CodeSnip &cs : snips) { + if (cs.position == TypeSystem::CodeSnipPositionEnd) { + s << INDENT << "overloadId = " << func->ownerClass()->functions().indexOf(const_cast<AbstractMetaFunction* const>(func)) << ';' << endl; + break; + } + } + } + + if (func->isAbstract()) { + s << INDENT << "if (Shiboken::Object::hasCppWrapper(reinterpret_cast<SbkObject*>(" PYTHON_SELF_VAR "))) {\n"; + { + Indentation indent(INDENT); + s << INDENT << "PyErr_SetString(PyExc_NotImplementedError, \"pure virtual method '"; + s << func->ownerClass()->name() << '.' << func->name() << "()' not implemented.\");" << endl; + s << INDENT << "return " << m_currentErrorCode << ';' << endl; + } + s << INDENT << "}\n"; + } + + // Used to provide contextual information to custom code writer function. + const AbstractMetaArgument* lastArg = 0; + + CodeSnipList snips; + if (func->hasInjectedCode()) { + snips = func->injectedCodeSnips(); + + // Find the last argument available in the method call to provide + // the injected code writer with information to avoid invalid replacements + // on the %# variable. + if (maxArgs > 0 && maxArgs < func->arguments().size() - OverloadData::numberOfRemovedArguments(func)) { + int removedArgs = 0; + for (int i = 0; i < maxArgs + removedArgs; i++) { + lastArg = func->arguments().at(i); + if (func->argumentRemoved(i + 1)) + removedArgs++; + } + } else if (maxArgs != 0 && !func->arguments().isEmpty()) { + lastArg = func->arguments().last(); + } + + writeCodeSnips(s, snips, TypeSystem::CodeSnipPositionBeginning, TypeSystem::TargetLangCode, func, lastArg); + s << endl; + } + + writeConversionRule(s, func, TypeSystem::NativeCode); + + if (!func->isUserAdded()) { + QStringList userArgs; + if (func->functionType() != AbstractMetaFunction::CopyConstructorFunction) { + int removedArgs = 0; + for (int i = 0; i < maxArgs + removedArgs; i++) { + const AbstractMetaArgument* arg = func->arguments().at(i); + bool hasConversionRule = !func->conversionRule(TypeSystem::NativeCode, arg->argumentIndex() + 1).isEmpty(); + if (func->argumentRemoved(i + 1)) { + // If some argument with default value is removed from a + // method signature, the said value must be explicitly + // added to the method call. + removedArgs++; + + // If have conversion rules I will use this for removed args + if (hasConversionRule) + userArgs << arg->name() + QLatin1String(CONV_RULE_OUT_VAR_SUFFIX); + else if (!arg->defaultValueExpression().isEmpty()) + userArgs << QString::fromLatin1(CPP_ARG_REMOVED "%1").arg(i); + } else { + int idx = arg->argumentIndex() - removedArgs; + bool deRef = isValueTypeWithCopyConstructorOnly(arg->type()) + || isObjectTypeUsedAsValueType(arg->type()) + || (arg->type()->referenceType() == LValueReference && isWrapperType(arg->type()) && !isPointer(arg->type())); + QString argName = hasConversionRule + ? arg->name() + QLatin1String(CONV_RULE_OUT_VAR_SUFFIX) + : QString::fromLatin1("%1" CPP_ARG "%2").arg(deRef ? QLatin1String("*") : QString()).arg(idx); + userArgs << argName; + } + } + + // If any argument's default value was modified the method must be called + // with this new value whenever the user doesn't pass an explicit value to it. + // Also, any unmodified default value coming after the last user specified + // argument and before the modified argument must be explicitly stated. + QStringList otherArgs; + bool otherArgsModified = false; + bool argsClear = true; + for (int i = func->arguments().size() - 1; i >= maxArgs + removedArgs; i--) { + const AbstractMetaArgument* arg = func->arguments().at(i); + bool defValModified = arg->defaultValueExpression() != arg->originalDefaultValueExpression(); + bool hasConversionRule = !func->conversionRule(TypeSystem::NativeCode, arg->argumentIndex() + 1).isEmpty(); + if (argsClear && !defValModified && !hasConversionRule) + continue; + else + argsClear = false; + otherArgsModified |= defValModified || hasConversionRule || func->argumentRemoved(i + 1); + if (hasConversionRule) + otherArgs.prepend(arg->name() + QLatin1String(CONV_RULE_OUT_VAR_SUFFIX)); + else + otherArgs.prepend(QString::fromLatin1(CPP_ARG_REMOVED "%1").arg(i)); + } + if (otherArgsModified) + userArgs << otherArgs; + } + + bool isCtor = false; + QString methodCall; + QTextStream mc(&methodCall); + QString useVAddr; + QTextStream uva(&useVAddr); + if (func->isOperatorOverload() && !func->isCallOperator()) { + QString firstArg = QLatin1String("(*" CPP_SELF_VAR ")"); + if (func->isPointerOperator()) + firstArg.remove(1, 1); // remove the de-reference operator + + QString secondArg = QLatin1String(CPP_ARG0); + if (!func->isUnaryOperator() && shouldDereferenceArgumentPointer(func->arguments().first())) { + secondArg.prepend(QLatin1String("(*")); + secondArg.append(QLatin1Char(')')); + } + + if (func->isUnaryOperator()) + std::swap(firstArg, secondArg); + + QString op = func->originalName(); + op = op.right(op.size() - (sizeof("operator")/sizeof(char)-1)); + + if (func->isBinaryOperator()) { + if (func->isReverseOperator()) + std::swap(firstArg, secondArg); + + if (((op == QLatin1String("++")) || (op == QLatin1String("--"))) && !func->isReverseOperator()) { + s << endl << INDENT << "for(int i=0; i < " << secondArg << "; i++, " << firstArg << op << ");" << endl; + mc << firstArg; + } else { + mc << firstArg << ' ' << op << ' ' << secondArg; + } + } else { + mc << op << ' ' << secondArg; + } + } else if (!injectedCodeCallsCppFunction(func)) { + if (func->isConstructor()) { + isCtor = true; + QString className = wrapperName(func->ownerClass()); + + if (func->functionType() == AbstractMetaFunction::CopyConstructorFunction && maxArgs == 1) { + mc << "new ::" << className << "(*" << CPP_ARG0 << ')'; + } else { + QString ctorCall = className + QLatin1Char('(') + userArgs.join(QLatin1String(", ")) + QLatin1Char(')'); + if (usePySideExtensions() && func->ownerClass()->isQObject()) { + s << INDENT << "void* addr = PySide::nextQObjectMemoryAddr();" << endl; + uva << "if (addr) {" << endl; + { + Indentation indent(INDENT); + + uva << INDENT << "cptr = " << "new (addr) ::" + << ctorCall << ';' << endl + << INDENT + << "PySide::setNextQObjectMemoryAddr(0);" + << endl; + } + uva << INDENT << "} else {" << endl; + { + Indentation indent(INDENT); + + uva << INDENT << "cptr = " << "new ::" + << ctorCall << ';' << endl; + } + uva << INDENT << "}" << endl; + } else { + mc << "new ::" << ctorCall; + } + } + } else { + QString methodCallClassName; + if (context.forSmartPointer()) + methodCallClassName = context.preciseType()->cppSignature(); + else if (func->ownerClass()) + methodCallClassName = func->ownerClass()->qualifiedCppName(); + + if (func->ownerClass()) { + if (!avoidProtectedHack() || !func->isProtected()) { + if (func->isStatic()) { + mc << "::" << methodCallClassName << "::"; + } else { + const QString selfVarCast = func->ownerClass() == func->implementingClass() + ? QLatin1String(CPP_SELF_VAR) + : QLatin1String("reinterpret_cast<") + methodCallClassName + QLatin1String(" *>(" CPP_SELF_VAR ")"); + if (func->isConstant()) { + if (avoidProtectedHack()) { + mc << "const_cast<const ::"; + if (func->ownerClass()->hasProtectedMembers()) { + // PYSIDE-500: Need a special wrapper cast when inherited + const QString selfWrapCast = func->ownerClass() == func->implementingClass() + ? QLatin1String(CPP_SELF_VAR) + : QLatin1String("reinterpret_cast<") + wrapperName(func->ownerClass()) + QLatin1String(" *>(" CPP_SELF_VAR ")"); + mc << wrapperName(func->ownerClass()); + mc << "*>(" << selfWrapCast << ")->"; + } + else { + mc << methodCallClassName; + mc << "*>(" << selfVarCast << ")->"; + } + } else { + mc << "const_cast<const ::" << methodCallClassName; + mc << "*>(" << selfVarCast << ")->"; + } + } else { + mc << selfVarCast << "->"; + } + } + + if (!func->isAbstract() && func->isVirtual()) + mc << "::%CLASS_NAME::"; + + mc << func->originalName(); + } else { + if (!func->isStatic()) + mc << "((::" << wrapperName(func->ownerClass()) << "*) " << CPP_SELF_VAR << ")->"; + + if (!func->isAbstract()) + mc << (func->isProtected() ? wrapperName(func->ownerClass()) : + QLatin1String("::") + + methodCallClassName) << "::"; + mc << func->originalName() << "_protected"; + } + } else { + mc << func->originalName(); + } + mc << '(' << userArgs.join(QLatin1String(", ")) << ')'; + if (!func->isAbstract() && func->isVirtual()) { + mc.flush(); + if (!avoidProtectedHack() || !func->isProtected()) { + QString virtualCall(methodCall); + QString normalCall(methodCall); + virtualCall = virtualCall.replace(QLatin1String("%CLASS_NAME"), + methodCallClassName); + normalCall.remove(QLatin1String("::%CLASS_NAME::")); + methodCall.clear(); + mc << "Shiboken::Object::hasCppWrapper(reinterpret_cast<SbkObject*>(" PYTHON_SELF_VAR ")) ? "; + mc << virtualCall << " : " << normalCall; + } + } + } + } + + if (!injectedCodeCallsCppFunction(func)) { + s << INDENT << BEGIN_ALLOW_THREADS << endl << INDENT; + if (isCtor) { + s << (useVAddr.isEmpty() ? + QString::fromLatin1("cptr = %1;").arg(methodCall) : useVAddr) << endl; + } else if (func->type() && !func->isInplaceOperator()) { + bool writeReturnType = true; + if (avoidProtectedHack()) { + const AbstractMetaEnum* metaEnum = findAbstractMetaEnum(func->type()); + if (metaEnum) { + QString enumName; + if (metaEnum->isProtected()) + enumName = protectedEnumSurrogateName(metaEnum); + else + enumName = func->type()->cppSignature(); + methodCall.prepend(enumName + QLatin1Char('(')); + methodCall.append(QLatin1Char(')')); + s << enumName; + writeReturnType = false; + } + } + if (writeReturnType) { + s << func->type()->cppSignature(); + if (isObjectTypeUsedAsValueType(func->type())) { + s << '*'; + methodCall.prepend(QString::fromLatin1("new %1(").arg(func->type()->typeEntry()->qualifiedCppName())); + methodCall.append(QLatin1Char(')')); + } + } + s << " " CPP_RETURN_VAR " = "; + s << methodCall << ';' << endl; + } else { + s << methodCall << ';' << endl; + } + s << INDENT << END_ALLOW_THREADS << endl; + + if (!func->conversionRule(TypeSystem::TargetLangCode, 0).isEmpty()) { + writeConversionRule(s, func, TypeSystem::TargetLangCode, QLatin1String(PYTHON_RETURN_VAR)); + } else if (!isCtor && !func->isInplaceOperator() && func->type() + && !injectedCodeHasReturnValueAttribution(func, TypeSystem::TargetLangCode)) { + s << INDENT << PYTHON_RETURN_VAR " = "; + if (isObjectTypeUsedAsValueType(func->type())) { + s << "Shiboken::Object::newObject(reinterpret_cast<SbkObjectType *>(" << cpythonTypeNameExt(func->type()->typeEntry()) + << "), " << CPP_RETURN_VAR << ", true, true)"; + } else { + writeToPythonConversion(s, func->type(), func->ownerClass(), QLatin1String(CPP_RETURN_VAR)); + } + s << ';' << endl; + } + } + } + + if (func->hasInjectedCode() && !func->isConstructor()) { + s << endl; + writeCodeSnips(s, snips, TypeSystem::CodeSnipPositionEnd, TypeSystem::TargetLangCode, func, lastArg); + } + + bool hasReturnPolicy = false; + + // Ownership transference between C++ and Python. + QVector<ArgumentModification> ownership_mods; + // Python object reference management. + QVector<ArgumentModification> refcount_mods; + const FunctionModificationList &funcMods = func->modifications(); + for (const FunctionModification &func_mod : funcMods) { + for (const ArgumentModification &arg_mod : func_mod.argument_mods) { + if (!arg_mod.ownerships.isEmpty() && arg_mod.ownerships.contains(TypeSystem::TargetLangCode)) + ownership_mods.append(arg_mod); + else if (!arg_mod.referenceCounts.isEmpty()) + refcount_mods.append(arg_mod); + } + } + + // If there's already a setParent(return, me), don't use the return heuristic! + if (func->argumentOwner(func->ownerClass(), -1).index == 0) + hasReturnPolicy = true; + + if (!ownership_mods.isEmpty()) { + s << endl << INDENT << "// Ownership transferences." << endl; + for (const ArgumentModification &arg_mod : qAsConst(ownership_mods)) { + const AbstractMetaClass* wrappedClass = 0; + QString pyArgName = argumentNameFromIndex(func, arg_mod.index, &wrappedClass); + if (!wrappedClass) { + s << "#error Invalid ownership modification for argument " << arg_mod.index << '(' << pyArgName << ')' << endl << endl; + break; + } + + if (arg_mod.index == 0 || arg_mod.owner.index == 0) + hasReturnPolicy = true; + + // The default ownership does nothing. This is useful to avoid automatic heuristically + // based generation of code defining parenting. + if (arg_mod.ownerships[TypeSystem::TargetLangCode] == TypeSystem::DefaultOwnership) + continue; + + s << INDENT << "Shiboken::Object::"; + if (arg_mod.ownerships[TypeSystem::TargetLangCode] == TypeSystem::TargetLangOwnership) { + s << "getOwnership(" << pyArgName << ");"; + } else if (wrappedClass->hasVirtualDestructor()) { + if (arg_mod.index == 0) + s << "releaseOwnership(" PYTHON_RETURN_VAR ");"; + else + s << "releaseOwnership(" << pyArgName << ");"; + } else { + s << "invalidate(" << pyArgName << ");"; + } + s << endl; + } + + } else if (!refcount_mods.isEmpty()) { + for (const ArgumentModification &arg_mod : qAsConst(refcount_mods)) { + ReferenceCount refCount = arg_mod.referenceCounts.first(); + if (refCount.action != ReferenceCount::Set + && refCount.action != ReferenceCount::Remove + && refCount.action != ReferenceCount::Add) { + qCWarning(lcShiboken) << "\"set\", \"add\" and \"remove\" are the only values supported by Shiboken for action attribute of reference-count tag."; + continue; + } + const AbstractMetaClass* wrappedClass = 0; + + QString pyArgName; + if (refCount.action == ReferenceCount::Remove) { + pyArgName = QLatin1String("Py_None"); + } else { + pyArgName = argumentNameFromIndex(func, arg_mod.index, &wrappedClass); + if (pyArgName.isEmpty()) { + s << "#error Invalid reference count modification for argument " << arg_mod.index << endl << endl; + break; + } + } + + if (refCount.action == ReferenceCount::Add || refCount.action == ReferenceCount::Set) + s << INDENT << "Shiboken::Object::keepReference("; + else + s << INDENT << "Shiboken::Object::removeReference("; + + s << "reinterpret_cast<SbkObject*>(" PYTHON_SELF_VAR "), \""; + QString varName = arg_mod.referenceCounts.first().varName; + if (varName.isEmpty()) + varName = func->minimalSignature() + QString().number(arg_mod.index); + + s << varName << "\", " << pyArgName + << (refCount.action == ReferenceCount::Add ? ", true" : "") + << ");" << endl; + + if (arg_mod.index == 0) + hasReturnPolicy = true; + } + } + writeParentChildManagement(s, func, !hasReturnPolicy); +} + +QStringList CppGenerator::getAncestorMultipleInheritance(const AbstractMetaClass* metaClass) +{ + QStringList result; + const AbstractMetaClassList &baseClases = getBaseClasses(metaClass); + if (!baseClases.isEmpty()) { + for (const AbstractMetaClass *baseClass : baseClases) { + result.append(QString::fromLatin1("((size_t) static_cast<const %1*>(class_ptr)) - base") + .arg(baseClass->qualifiedCppName())); + result.append(QString::fromLatin1("((size_t) static_cast<const %1*>((%2*)((void*)class_ptr))) - base") + .arg(baseClass->qualifiedCppName(), metaClass->qualifiedCppName())); + } + for (const AbstractMetaClass *baseClass : baseClases) + result.append(getAncestorMultipleInheritance(baseClass)); + } + return result; +} + +void CppGenerator::writeMultipleInheritanceInitializerFunction(QTextStream& s, const AbstractMetaClass* metaClass) +{ + QString className = metaClass->qualifiedCppName(); + const QStringList ancestors = getAncestorMultipleInheritance(metaClass); + s << "static int mi_offsets[] = { "; + for (int i = 0; i < ancestors.size(); i++) + s << "-1, "; + s << "-1 };" << endl; + s << "int*" << endl; + s << multipleInheritanceInitializerFunctionName(metaClass) << "(const void* cptr)" << endl; + s << '{' << endl; + s << INDENT << "if (mi_offsets[0] == -1) {" << endl; + { + Indentation indent(INDENT); + s << INDENT << "std::set<int> offsets;" << endl; + s << INDENT << "std::set<int>::iterator it;" << endl; + s << INDENT << "const " << className << "* class_ptr = reinterpret_cast<const " << className << "*>(cptr);" << endl; + s << INDENT << "size_t base = (size_t) class_ptr;" << endl; + + for (const QString &ancestor : ancestors) + s << INDENT << "offsets.insert(" << ancestor << ");" << endl; + + s << endl; + s << INDENT << "offsets.erase(0);" << endl; + s << endl; + + s << INDENT << "int i = 0;" << endl; + s << INDENT << "for (it = offsets.begin(); it != offsets.end(); it++) {" << endl; + { + Indentation indent(INDENT); + s << INDENT << "mi_offsets[i] = *it;" << endl; + s << INDENT << "i++;" << endl; + } + s << INDENT << '}' << endl; + } + s << INDENT << '}' << endl; + s << INDENT << "return mi_offsets;" << endl; + s << '}' << endl; +} + +void CppGenerator::writeSpecialCastFunction(QTextStream& s, const AbstractMetaClass* metaClass) +{ + QString className = metaClass->qualifiedCppName(); + s << "static void* " << cpythonSpecialCastFunctionName(metaClass) << "(void* obj, SbkObjectType* desiredType)\n"; + s << "{\n"; + s << INDENT << className << "* me = reinterpret_cast< ::" << className << "*>(obj);\n"; + bool firstClass = true; + const AbstractMetaClassList &allAncestors = getAllAncestors(metaClass); + for (const AbstractMetaClass *baseClass : allAncestors) { + s << INDENT << (!firstClass ? "else " : "") << "if (desiredType == reinterpret_cast<SbkObjectType*>(" << cpythonTypeNameExt(baseClass->typeEntry()) << "))\n"; + Indentation indent(INDENT); + s << INDENT << "return static_cast< ::" << baseClass->qualifiedCppName() << "*>(me);\n"; + firstClass = false; + } + s << INDENT << "return me;\n"; + s << "}\n\n"; +} + +void CppGenerator::writePrimitiveConverterInitialization(QTextStream& s, const CustomConversion* customConversion) +{ + const TypeEntry* type = customConversion->ownerType(); + QString converter = converterObject(type); + s << INDENT << "// Register converter for type '" << type->qualifiedTargetLangName() << "'." << endl; + s << INDENT << converter << " = Shiboken::Conversions::createConverter("; + if (type->targetLangApiName() == type->name()) + s << '0'; + else if (type->targetLangApiName() == QLatin1String("PyObject")) + s << "&PyBaseObject_Type"; + else + s << '&' << type->targetLangApiName() << "_Type"; + QString typeName = fixedCppTypeName(type); + s << ", " << cppToPythonFunctionName(typeName, typeName) << ");" << endl; + s << INDENT << "Shiboken::Conversions::registerConverterName(" << converter << ", \"" << type->qualifiedCppName() << "\");" << endl; + writeCustomConverterRegister(s, customConversion, converter); +} + +void CppGenerator::writeEnumConverterInitialization(QTextStream& s, const AbstractMetaEnum* metaEnum) +{ + if (metaEnum->isPrivate() || metaEnum->isAnonymous()) + return; + writeEnumConverterInitialization(s, metaEnum->typeEntry()); +} + +void CppGenerator::writeEnumConverterInitialization(QTextStream& s, const TypeEntry* enumType) +{ + if (!enumType) + return; + QString enumFlagName = enumType->isFlags() ? QLatin1String("flag") : QLatin1String("enum"); + QString enumPythonType = cpythonTypeNameExt(enumType); + + const FlagsTypeEntry* flags = 0; + if (enumType->isFlags()) + flags = reinterpret_cast<const FlagsTypeEntry*>(enumType); + + s << INDENT << "// Register converter for " << enumFlagName << " '" << enumType->qualifiedCppName() << "'." << endl; + s << INDENT << '{' << endl; + { + Indentation indent(INDENT); + QString typeName = fixedCppTypeName(enumType); + s << INDENT << "SbkConverter* converter = Shiboken::Conversions::createConverter(" << enumPythonType << ',' << endl; + { + Indentation indent(INDENT); + s << INDENT << cppToPythonFunctionName(typeName, typeName) << ");" << endl; + } + + if (flags) { + QString enumTypeName = fixedCppTypeName(flags->originator()); + QString toCpp = pythonToCppFunctionName(enumTypeName, typeName); + QString isConv = convertibleToCppFunctionName(enumTypeName, typeName); + writeAddPythonToCppConversion(s, QLatin1String("converter"), toCpp, isConv); + } + + QString toCpp = pythonToCppFunctionName(typeName, typeName); + QString isConv = convertibleToCppFunctionName(typeName, typeName); + writeAddPythonToCppConversion(s, QLatin1String("converter"), toCpp, isConv); + + if (flags) { + QString toCpp = pythonToCppFunctionName(QLatin1String("number"), typeName); + QString isConv = convertibleToCppFunctionName(QLatin1String("number"), typeName); + writeAddPythonToCppConversion(s, QLatin1String("converter"), toCpp, isConv); + } + + s << INDENT << "Shiboken::Enum::setTypeConverter(" << enumPythonType << ", converter);" << endl; + s << INDENT << "Shiboken::Enum::setTypeConverter(" << enumPythonType << ", converter);" << endl; + QStringList cppSignature = enumType->qualifiedCppName().split(QLatin1String("::"), QString::SkipEmptyParts); + while (!cppSignature.isEmpty()) { + QString signature = cppSignature.join(QLatin1String("::")); + s << INDENT << "Shiboken::Conversions::registerConverterName(converter, \""; + if (flags) + s << "QFlags<"; + s << signature << "\");" << endl; + cppSignature.removeFirst(); + } + } + s << INDENT << '}' << endl; + + if (!flags) + writeEnumConverterInitialization(s, reinterpret_cast<const EnumTypeEntry*>(enumType)->flags()); +} + +void CppGenerator::writeContainerConverterInitialization(QTextStream& s, const AbstractMetaType* type) +{ + QByteArray cppSignature = QMetaObject::normalizedSignature(type->cppSignature().toUtf8()); + s << INDENT << "// Register converter for type '" << cppSignature << "'." << endl; + QString converter = converterObject(type); + s << INDENT << converter << " = Shiboken::Conversions::createConverter("; + if (type->typeEntry()->targetLangApiName() == QLatin1String("PyObject")) { + s << "&PyBaseObject_Type"; + } else { + QString baseName = cpythonBaseName(type->typeEntry()); + if (baseName == QLatin1String("PySequence")) + baseName = QLatin1String("PyList"); + s << '&' << baseName << "_Type"; + } + QString typeName = fixedCppTypeName(type); + s << ", " << cppToPythonFunctionName(typeName, typeName) << ");" << endl; + QString toCpp = pythonToCppFunctionName(typeName, typeName); + QString isConv = convertibleToCppFunctionName(typeName, typeName); + s << INDENT << "Shiboken::Conversions::registerConverterName(" << converter << ", \"" << cppSignature << "\");" << endl; + if (usePySideExtensions() && cppSignature.startsWith("const ") && cppSignature.endsWith("&")) { + cppSignature.chop(1); + cppSignature.remove(0, sizeof("const ") / sizeof(char) - 1); + s << INDENT << "Shiboken::Conversions::registerConverterName(" << converter << ", \"" << cppSignature << "\");" << endl; + } + writeAddPythonToCppConversion(s, converterObject(type), toCpp, isConv); +} + +void CppGenerator::writeExtendedConverterInitialization(QTextStream& s, const TypeEntry* externalType, + const QVector<const AbstractMetaClass*>& conversions) +{ + s << INDENT << "// Extended implicit conversions for " << externalType->qualifiedTargetLangName() << '.' << endl; + for (const AbstractMetaClass *sourceClass : conversions) { + const QString converterVar = QLatin1String("reinterpret_cast<SbkObjectType *>(") + + cppApiVariableName(externalType->targetLangPackage()) + QLatin1Char('[') + + getTypeIndexVariableName(externalType) + QLatin1String("])"); + QString sourceTypeName = fixedCppTypeName(sourceClass->typeEntry()); + QString targetTypeName = fixedCppTypeName(externalType); + QString toCpp = pythonToCppFunctionName(sourceTypeName, targetTypeName); + QString isConv = convertibleToCppFunctionName(sourceTypeName, targetTypeName); + writeAddPythonToCppConversion(s, converterVar, toCpp, isConv); + } +} + +QString CppGenerator::multipleInheritanceInitializerFunctionName(const AbstractMetaClass* metaClass) +{ + if (!hasMultipleInheritanceInAncestry(metaClass)) + return QString(); + return cpythonBaseName(metaClass->typeEntry()) + QLatin1String("_mi_init"); +} + +typedef QHash<QString, QPair<QString, QString> >::const_iterator ProtocolIt; + +bool CppGenerator::supportsMappingProtocol(const AbstractMetaClass* metaClass) +{ + for (ProtocolIt it = m_mappingProtocol.cbegin(), end = m_mappingProtocol.cend(); it != end; ++it) { + if (metaClass->hasFunction(it.key())) + return true; + } + + return false; +} + +bool CppGenerator::supportsNumberProtocol(const AbstractMetaClass* metaClass) +{ + return metaClass->hasArithmeticOperatorOverload() + || metaClass->hasLogicalOperatorOverload() + || metaClass->hasBitwiseOperatorOverload() + || hasBoolCast(metaClass); +} + +bool CppGenerator::supportsSequenceProtocol(const AbstractMetaClass* metaClass) +{ + for (ProtocolIt it = m_sequenceProtocol.cbegin(), end = m_sequenceProtocol.cend(); it != end; ++it) { + if (metaClass->hasFunction(it.key())) + return true; + } + + const ComplexTypeEntry* baseType = metaClass->typeEntry()->baseContainerType(); + if (baseType && baseType->isContainer()) + return true; + + return false; +} + +bool CppGenerator::shouldGenerateGetSetList(const AbstractMetaClass* metaClass) +{ + const AbstractMetaFieldList &fields = metaClass->fields(); + for (const AbstractMetaField *f : fields) { + if (!f->isStatic()) + return true; + } + return false; +} + +void CppGenerator::writeClassDefinition(QTextStream &s, + const AbstractMetaClass *metaClass, + GeneratorContext &classContext) +{ + QString tp_flags; + QString tp_init; + QString tp_new; + QString tp_dealloc; + QString tp_hash(QLatin1Char('0')); + QString tp_call = tp_hash; + QString cppClassName = metaClass->qualifiedCppName(); + const QString className = chopType(cpythonTypeName(metaClass)); + QString baseClassName(QLatin1Char('0')); + AbstractMetaFunctionList ctors; + const AbstractMetaFunctionList &allCtors = metaClass->queryFunctions(AbstractMetaClass::Constructors); + for (AbstractMetaFunction *f : allCtors) { + if (!f->isPrivate() && !f->isModifiedRemoved() && !classContext.forSmartPointer()) + ctors.append(f); + } + + if (!metaClass->baseClass()) + baseClassName = QLatin1String("reinterpret_cast<PyTypeObject*>(&SbkObject_Type)"); + + bool onlyPrivCtor = !metaClass->hasNonPrivateConstructor(); + + if (metaClass->isNamespace() || metaClass->hasPrivateDestructor()) { + tp_flags = QLatin1String("Py_TPFLAGS_DEFAULT|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_GC"); + tp_dealloc = metaClass->hasPrivateDestructor() ? + QLatin1String("SbkDeallocWrapperWithPrivateDtor") : QLatin1String("0"); + tp_init = QLatin1String("0"); + } else { + if (onlyPrivCtor) + tp_flags = QLatin1String("Py_TPFLAGS_DEFAULT|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_GC"); + else + tp_flags = QLatin1String("Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_GC"); + + QString deallocClassName; + if (shouldGenerateCppWrapper(metaClass)) + deallocClassName = wrapperName(metaClass); + else + deallocClassName = cppClassName; + tp_dealloc = QLatin1String("&SbkDeallocWrapper"); + // avoid constFirst to stay Qt 5.5 compatible + tp_init = (onlyPrivCtor || ctors.isEmpty()) ? QLatin1String("0") : cpythonFunctionName(ctors.first()); + } + + QString tp_getattro(QLatin1Char('0')); + QString tp_setattro = tp_getattro; + if (usePySideExtensions() && (metaClass->qualifiedCppName() == QLatin1String("QObject"))) { + tp_getattro = cpythonGetattroFunctionName(metaClass); + tp_setattro = cpythonSetattroFunctionName(metaClass); + } else { + if (classNeedsGetattroFunction(metaClass)) + tp_getattro = cpythonGetattroFunctionName(metaClass); + if (classNeedsSetattroFunction(metaClass)) + tp_setattro = cpythonSetattroFunctionName(metaClass); + } + + if (metaClass->hasPrivateDestructor() || onlyPrivCtor) + tp_new = QLatin1String("0"); + else + tp_new = QLatin1String("SbkObjectTpNew"); + + QString tp_richcompare = QString(QLatin1Char('0')); + if (metaClass->hasComparisonOperatorOverload()) + tp_richcompare = cpythonBaseName(metaClass) + QLatin1String("_richcompare"); + + QString tp_getset = QString(QLatin1Char('0')); + if (shouldGenerateGetSetList(metaClass) && !classContext.forSmartPointer()) + tp_getset = cpythonGettersSettersDefinitionName(metaClass); + + // search for special functions + ShibokenGenerator::clearTpFuncs(); + const AbstractMetaFunctionList &funcs = metaClass->functions(); + for (AbstractMetaFunction *func : funcs) { + if (m_tpFuncs.contains(func->name())) + m_tpFuncs[func->name()] = cpythonFunctionName(func); + } + if (m_tpFuncs[QLatin1String("__repr__")] == QLatin1String("0") + && !metaClass->isQObject() + && metaClass->hasToStringCapability()) { + m_tpFuncs[QLatin1String("__repr__")] = writeReprFunction(s, classContext); + } + + // class or some ancestor has multiple inheritance + const AbstractMetaClass* miClass = getMultipleInheritingClass(metaClass); + if (miClass) { + if (metaClass == miClass) + writeMultipleInheritanceInitializerFunction(s, metaClass); + writeSpecialCastFunction(s, metaClass); + s << endl; + } + + if (!metaClass->typeEntry()->hashFunction().isEmpty()) + tp_hash = QLatin1Char('&') + cpythonBaseName(metaClass) + QLatin1String("_HashFunc"); + + const AbstractMetaFunction* callOp = metaClass->findFunction(QLatin1String("operator()")); + if (callOp && !callOp->isModifiedRemoved()) + tp_call = QLatin1Char('&') + cpythonFunctionName(callOp); + + s << "// Class Definition -----------------------------------------------" << endl; + s << "extern \"C\" {" << endl; + + if (supportsNumberProtocol(metaClass)) { + s << "static PyNumberMethods " << className + QLatin1String("_TypeAsNumber") << ";" << endl; + s << endl; + } + + if (supportsSequenceProtocol(metaClass)) { + s << "static PySequenceMethods " << className + QLatin1String("_TypeAsSequence") << ";" << endl; + s << endl; + } + + if (supportsMappingProtocol(metaClass)) { + s << "static PyMappingMethods " << className + QLatin1String("_TypeAsMapping") << ";" << endl; + s << endl; + } + + s << "static SbkObjectType " << className + QLatin1String("_Type") << " = { { {" << endl; + s << INDENT << "PyVarObject_HEAD_INIT(&SbkObjectType_Type, 0)" << endl; + QString computedClassTargetFullName; + if (!classContext.forSmartPointer()) + computedClassTargetFullName = getClassTargetFullName(metaClass); + else + computedClassTargetFullName = getClassTargetFullName(classContext.preciseType()); + + s << INDENT << "/*tp_name*/ \"" << computedClassTargetFullName << "\"," << endl; + s << INDENT << "/*tp_basicsize*/ sizeof(SbkObject)," << endl; + s << INDENT << "/*tp_itemsize*/ 0," << endl; + s << INDENT << "/*tp_dealloc*/ " << tp_dealloc << ',' << endl; + s << INDENT << "/*tp_print*/ 0," << endl; + s << INDENT << "/*tp_getattr*/ 0," << endl; + s << INDENT << "/*tp_setattr*/ 0," << endl; + s << INDENT << "/*tp_compare*/ 0," << endl; + s << INDENT << "/*tp_repr*/ " << m_tpFuncs[QLatin1String("__repr__")] << "," << endl; + s << INDENT << "/*tp_as_number*/ 0," << endl; + s << INDENT << "/*tp_as_sequence*/ 0," << endl; + s << INDENT << "/*tp_as_mapping*/ 0," << endl; + s << INDENT << "/*tp_hash*/ " << tp_hash << ',' << endl; + s << INDENT << "/*tp_call*/ " << tp_call << ',' << endl; + s << INDENT << "/*tp_str*/ " << m_tpFuncs[QLatin1String("__str__")] << ',' << endl; + s << INDENT << "/*tp_getattro*/ " << tp_getattro << ',' << endl; + s << INDENT << "/*tp_setattro*/ " << tp_setattro << ',' << endl; + s << INDENT << "/*tp_as_buffer*/ 0," << endl; + s << INDENT << "/*tp_flags*/ " << tp_flags << ',' << endl; + s << INDENT << "/*tp_doc*/ 0," << endl; + s << INDENT << "/*tp_traverse*/ " << className << "_traverse," << endl; + s << INDENT << "/*tp_clear*/ " << className << "_clear," << endl; + s << INDENT << "/*tp_richcompare*/ " << tp_richcompare << ',' << endl; + s << INDENT << "/*tp_weaklistoffset*/ 0," << endl; + s << INDENT << "/*tp_iter*/ " << m_tpFuncs[QLatin1String("__iter__")] << ',' << endl; + s << INDENT << "/*tp_iternext*/ " << m_tpFuncs[QLatin1String("__next__")] << ',' << endl; + s << INDENT << "/*tp_methods*/ " << className << "_methods," << endl; + s << INDENT << "/*tp_members*/ 0," << endl; + s << INDENT << "/*tp_getset*/ " << tp_getset << ',' << endl; + s << INDENT << "/*tp_base*/ " << baseClassName << ',' << endl; + s << INDENT << "/*tp_dict*/ 0," << endl; + s << INDENT << "/*tp_descr_get*/ 0," << endl; + s << INDENT << "/*tp_descr_set*/ 0," << endl; + s << INDENT << "/*tp_dictoffset*/ 0," << endl; + s << INDENT << "/*tp_init*/ " << tp_init << ',' << endl; + s << INDENT << "/*tp_alloc*/ 0," << endl; + s << INDENT << "/*tp_new*/ " << tp_new << ',' << endl; + s << INDENT << "/*tp_free*/ 0," << endl; + s << INDENT << "/*tp_is_gc*/ 0," << endl; + s << INDENT << "/*tp_bases*/ 0," << endl; + s << INDENT << "/*tp_mro*/ 0," << endl; + s << INDENT << "/*tp_cache*/ 0," << endl; + s << INDENT << "/*tp_subclasses*/ 0," << endl; + s << INDENT << "/*tp_weaklist*/ 0" << endl; + s << "}, }," << endl; + s << INDENT << "/*priv_data*/ 0" << endl; + s << "};" << endl; + QString suffix; + if (isObjectType(metaClass)) + suffix = QLatin1String("*"); + s << "} //extern" << endl; +} + +void CppGenerator::writeMappingMethods(QTextStream &s, + const AbstractMetaClass *metaClass, + GeneratorContext &context) +{ + + QMap<QString, QString> funcs; + + QHash< QString, QPair< QString, QString > >::const_iterator it = m_mappingProtocol.begin(); + for (; it != m_mappingProtocol.end(); ++it) { + const AbstractMetaFunction* func = metaClass->findFunction(it.key()); + if (!func) + continue; + QString funcName = cpythonFunctionName(func); + QString funcArgs = it.value().first; + QString funcRetVal = it.value().second; + + CodeSnipList snips = func->injectedCodeSnips(TypeSystem::CodeSnipPositionAny, TypeSystem::TargetLangCode); + s << funcRetVal << ' ' << funcName << '(' << funcArgs << ')' << endl << '{' << endl; + writeInvalidPyObjectCheck(s, QLatin1String(PYTHON_SELF_VAR)); + + writeCppSelfDefinition(s, func, context); + + const AbstractMetaArgument* lastArg = func->arguments().isEmpty() ? 0 : func->arguments().last(); + writeCodeSnips(s, snips, TypeSystem::CodeSnipPositionAny, TypeSystem::TargetLangCode, func, lastArg); + s << '}' << endl << endl; + } +} + +void CppGenerator::writeSequenceMethods(QTextStream &s, + const AbstractMetaClass *metaClass, + GeneratorContext &context) +{ + + QMap<QString, QString> funcs; + bool injectedCode = false; + + QHash< QString, QPair< QString, QString > >::const_iterator it = m_sequenceProtocol.begin(); + for (; it != m_sequenceProtocol.end(); ++it) { + const AbstractMetaFunction* func = metaClass->findFunction(it.key()); + if (!func) + continue; + injectedCode = true; + QString funcName = cpythonFunctionName(func); + QString funcArgs = it.value().first; + QString funcRetVal = it.value().second; + + CodeSnipList snips = func->injectedCodeSnips(TypeSystem::CodeSnipPositionAny, TypeSystem::TargetLangCode); + s << funcRetVal << ' ' << funcName << '(' << funcArgs << ')' << endl << '{' << endl; + writeInvalidPyObjectCheck(s, QLatin1String(PYTHON_SELF_VAR)); + + writeCppSelfDefinition(s, func, context); + + const AbstractMetaArgument* lastArg = func->arguments().isEmpty() ? 0 : func->arguments().last(); + writeCodeSnips(s, snips,TypeSystem::CodeSnipPositionAny, TypeSystem::TargetLangCode, func, lastArg); + s << '}' << endl << endl; + } + + if (!injectedCode) + writeStdListWrapperMethods(s, context); +} + +void CppGenerator::writeTypeAsSequenceDefinition(QTextStream& s, const AbstractMetaClass* metaClass) +{ + bool hasFunctions = false; + QMap<QString, QString> funcs; + for (ProtocolIt it = m_sequenceProtocol.cbegin(), end = m_sequenceProtocol.cend(); it != end; ++it) { + const QString &funcName = it.key(); + const AbstractMetaFunction* func = metaClass->findFunction(funcName); + funcs[funcName] = func ? cpythonFunctionName(func).prepend(QLatin1Char('&')) : QString(); + if (!hasFunctions && func) + hasFunctions = true; + } + + QString baseName = cpythonBaseName(metaClass); + + //use default implementation + if (!hasFunctions) { + funcs[QLatin1String("__len__")] = baseName + QLatin1String("__len__"); + funcs[QLatin1String("__getitem__")] = baseName + QLatin1String("__getitem__"); + funcs[QLatin1String("__setitem__")] = baseName + QLatin1String("__setitem__"); + } + + s << INDENT << "memset(&" << baseName << "_TypeAsSequence, 0, sizeof(PySequenceMethods));" << endl; + for (QHash<QString, QString>::const_iterator it = m_sqFuncs.cbegin(), end = m_sqFuncs.cend(); it != end; ++it) { + const QString& sqName = it.key(); + if (funcs[sqName].isEmpty()) + continue; + if (it.value() == QLatin1String("sq_slice")) + s << "#ifndef IS_PY3K" << endl; + s << INDENT << baseName << "_TypeAsSequence." << it.value() << " = " << funcs[sqName] << ';' << endl; + if (it.value() == QLatin1String("sq_slice")) + s << "#endif" << endl; + } +} + +void CppGenerator::writeTypeAsMappingDefinition(QTextStream& s, const AbstractMetaClass* metaClass) +{ + bool hasFunctions = false; + QMap<QString, QString> funcs; + for (ProtocolIt it = m_mappingProtocol.cbegin(), end = m_mappingProtocol.cend(); it != end; ++it) { + const QString &funcName = it.key(); + const AbstractMetaFunction* func = metaClass->findFunction(funcName); + funcs[funcName] = func ? cpythonFunctionName(func).prepend(QLatin1Char('&')) : QLatin1String("0"); + if (!hasFunctions && func) + hasFunctions = true; + } + + //use default implementation + if (!hasFunctions) { + funcs.insert(QLatin1String("__mlen__"), QString()); + funcs.insert(QLatin1String("__mgetitem__"), QString()); + funcs.insert(QLatin1String("__msetitem__"), QString()); + } + + QString baseName = cpythonBaseName(metaClass); + s << INDENT << "memset(&" << baseName << "_TypeAsMapping, 0, sizeof(PyMappingMethods));" << endl; + for (QHash<QString, QString>::const_iterator it = m_mpFuncs.cbegin(), end = m_mpFuncs.end(); it != end; ++it) { + const QString &mpName = it.key(); + if (funcs[mpName].isEmpty()) + continue; + s << INDENT << baseName << "_TypeAsMapping." << it.value() << " = " << funcs[mpName] << ';' << endl; + } +} + +void CppGenerator::writeTypeAsNumberDefinition(QTextStream& s, const AbstractMetaClass* metaClass) +{ + QMap<QString, QString> nb; + + nb.insert(QLatin1String("__add__"), QString()); + nb.insert(QLatin1String("__sub__"), QString()); + nb.insert(QLatin1String("__mul__"), QString()); + nb.insert(QLatin1String("__div__"), QString()); + nb.insert(QLatin1String("__mod__"), QString()); + nb.insert(QLatin1String("__neg__"), QString()); + nb.insert(QLatin1String("__pos__"), QString()); + nb.insert(QLatin1String("__invert__"), QString()); + nb.insert(QLatin1String("__lshift__"), QString()); + nb.insert(QLatin1String("__rshift__"), QString()); + nb.insert(QLatin1String("__and__"), QString()); + nb.insert(QLatin1String("__xor__"), QString()); + nb.insert(QLatin1String("__or__"), QString()); + nb.insert(QLatin1String("__iadd__"), QString()); + nb.insert(QLatin1String("__isub__"), QString()); + nb.insert(QLatin1String("__imul__"), QString()); + nb.insert(QLatin1String("__idiv__"), QString()); + nb.insert(QLatin1String("__imod__"), QString()); + nb.insert(QLatin1String("__ilshift__"), QString()); + nb.insert(QLatin1String("__irshift__"), QString()); + nb.insert(QLatin1String("__iand__"), QString()); + nb.insert(QLatin1String("__ixor__"), QString()); + nb.insert(QLatin1String("__ior__"), QString()); + + const QVector<AbstractMetaFunctionList> opOverloads = + filterGroupedOperatorFunctions(metaClass, + AbstractMetaClass::ArithmeticOp + | AbstractMetaClass::LogicalOp + | AbstractMetaClass::BitwiseOp); + + for (const AbstractMetaFunctionList &opOverload : opOverloads) { + const AbstractMetaFunction* rfunc = opOverload[0]; + QString opName = ShibokenGenerator::pythonOperatorFunctionName(rfunc); + nb[opName] = cpythonFunctionName(rfunc); + } + + QString baseName = cpythonBaseName(metaClass); + + nb[QLatin1String("bool")] = hasBoolCast(metaClass) ? baseName + QLatin1String("___nb_bool") : QString(); + + s << INDENT << "memset(&" << baseName << "_TypeAsNumber, 0, sizeof(PyNumberMethods));" << endl; + for (QHash<QString, QString>::const_iterator it = m_nbFuncs.cbegin(), end = m_nbFuncs.cend(); it != end; ++it) { + const QString &nbName = it.key(); + if (nb[nbName].isEmpty()) + continue; + + // bool is special because the field name differs on Python 2 and 3 (nb_nonzero vs nb_bool) + // so a shiboken macro is used. + if (nbName == QLatin1String("bool")) { + s << INDENT << "SBK_NB_BOOL(" << baseName << "_TypeAsNumber) = " << nb[nbName] << ';' << endl; + } else { + bool excludeFromPy3K = nbName == QLatin1String("__div__") || nbName == QLatin1String("__idiv__"); + if (excludeFromPy3K) { + s << "#ifdef IS_PY3K" << endl; + s << INDENT << "SBK_UNUSED(&" << nb[nbName] << ");" << endl; + s << "#else" << endl; + } + s << INDENT << baseName << "_TypeAsNumber." << it.value() << " = " << nb[nbName] << ';' << endl; + if (excludeFromPy3K) + s << "#endif" << endl; + } + } + if (!nb[QLatin1String("__div__")].isEmpty()) + s << INDENT << baseName << "_TypeAsNumber.nb_true_divide = " << nb[QLatin1String("__div__")] << ';' << endl; +} + +void CppGenerator::writeTpTraverseFunction(QTextStream& s, const AbstractMetaClass* metaClass) +{ + QString baseName = cpythonBaseName(metaClass); + s << "static int "; + s << baseName << "_traverse(PyObject* " PYTHON_SELF_VAR ", visitproc visit, void* arg)" << endl; + s << '{' << endl; + s << INDENT << "return reinterpret_cast<PyTypeObject*>(&SbkObject_Type)->tp_traverse(" PYTHON_SELF_VAR ", visit, arg);" << endl; + s << '}' << endl; +} + +void CppGenerator::writeTpClearFunction(QTextStream& s, const AbstractMetaClass* metaClass) +{ + QString baseName = cpythonBaseName(metaClass); + s << "static int "; + s << baseName << "_clear(PyObject* " PYTHON_SELF_VAR ")" << endl; + s << '{' << endl; + s << INDENT << "return reinterpret_cast<PyTypeObject*>(&SbkObject_Type)->tp_clear(" PYTHON_SELF_VAR ");" << endl; + s << '}' << endl; +} + +void CppGenerator::writeCopyFunction(QTextStream &s, GeneratorContext &context) +{ + const AbstractMetaClass *metaClass = context.metaClass(); + const QString className = chopType(cpythonTypeName(metaClass)); + s << "static PyObject* " << className << "___copy__(PyObject* " PYTHON_SELF_VAR ")" << endl; + s << "{" << endl; + writeCppSelfDefinition(s, context, false, true); + QString conversionCode; + if (!context.forSmartPointer()) + conversionCode = cpythonToPythonConversionFunction(metaClass); + else + conversionCode = cpythonToPythonConversionFunction(context.preciseType()); + + s << INDENT << "PyObject* " << PYTHON_RETURN_VAR << " = " << conversionCode; + s << CPP_SELF_VAR ");" << endl; + writeFunctionReturnErrorCheckSection(s); + s << INDENT << "return " PYTHON_RETURN_VAR ";" << endl; + s << "}" << endl; + s << endl; +} + +void CppGenerator::writeGetterFunction(QTextStream &s, + const AbstractMetaField *metaField, + GeneratorContext &context) +{ + ErrorCode errorCode(0); + s << "static PyObject* " << cpythonGetterFunctionName(metaField) << "(PyObject* " PYTHON_SELF_VAR ", void*)" << endl; + s << '{' << endl; + + writeCppSelfDefinition(s, context); + + AbstractMetaType* fieldType = metaField->type(); + // Force use of pointer to return internal variable memory + bool newWrapperSameObject = !fieldType->isConstant() && isWrapperType(fieldType) && !isPointer(fieldType); + + QString cppField; + if (avoidProtectedHack() && metaField->isProtected()) { + cppField = QString::fromLatin1("((%1*)%2)->%3()") + .arg(wrapperName(metaField->enclosingClass()), QLatin1String(CPP_SELF_VAR), + protectedFieldGetterName(metaField)); + } else { + cppField = QLatin1String(CPP_SELF_VAR) + QLatin1String("->") + metaField->name(); + if (newWrapperSameObject) { + cppField.prepend(QLatin1String("&(")); + cppField.append(QLatin1Char(')')); + } + } + if (isCppIntegralPrimitive(fieldType) || fieldType->isEnum()) { + s << INDENT << getFullTypeNameWithoutModifiers(fieldType) << " cppOut_local = " << cppField << ';' << endl; + cppField = QLatin1String("cppOut_local"); + } else if (avoidProtectedHack() && metaField->isProtected()) { + s << INDENT << getFullTypeNameWithoutModifiers(fieldType); + if (fieldType->isContainer() || fieldType->isFlags() || fieldType->isSmartPointer()) { + s << '&'; + cppField.prepend(QLatin1Char('*')); + } else if ((!fieldType->isConstant() && !fieldType->isEnum() && !fieldType->isPrimitive()) || fieldType->indirections() == 1) { + s << '*'; + } + s << " fieldValue = " << cppField << ';' << endl; + cppField = QLatin1String("fieldValue"); + } + + s << INDENT << "PyObject* pyOut = 0;\n"; + if (newWrapperSameObject) { + // Special case colocated field with same address (first field in a struct) + s << INDENT << "if (reinterpret_cast<void *>(" + << cppField + << ") == reinterpret_cast<void *>(" + << CPP_SELF_VAR << ")) {\n"; + { + Indentation indent(INDENT); + s << INDENT << "pyOut = reinterpret_cast<PyObject *>(Shiboken::Object::findColocatedChild(" + << "reinterpret_cast<SbkObject *>(self), reinterpret_cast<const SbkObjectType *>(" + << cpythonTypeNameExt(fieldType) + << ")));\n"; + s << INDENT << "if (pyOut) {Py_IncRef(pyOut); return pyOut;}\n"; + } + s << INDENT << "}\n"; + // Check if field wrapper has already been created. + s << INDENT << "else if (Shiboken::BindingManager::instance().hasWrapper(" << cppField << ")) {" << "\n"; + { + Indentation indent(INDENT); + s << INDENT << "pyOut = (PyObject*)Shiboken::BindingManager::instance().retrieveWrapper(" << cppField << ");" << "\n"; + s << INDENT << "Py_IncRef(pyOut);" << "\n"; + s << INDENT << "return pyOut;" << "\n"; + } + s << INDENT << "}\n"; + // Create and register new wrapper + s << INDENT << "pyOut = "; + s << "Shiboken::Object::newObject(reinterpret_cast<SbkObjectType *>(" << cpythonTypeNameExt(fieldType) + << "), " << cppField << ", false, true);" << endl; + s << INDENT << "Shiboken::Object::setParent(" PYTHON_SELF_VAR ", pyOut)"; + } else { + s << INDENT << "pyOut = "; + writeToPythonConversion(s, fieldType, metaField->enclosingClass(), cppField); + } + s << ';' << endl; + + s << INDENT << "return pyOut;" << endl; + s << '}' << endl; +} + +void CppGenerator::writeSetterFunction(QTextStream &s, + const AbstractMetaField *metaField, + GeneratorContext &context) +{ + ErrorCode errorCode(0); + s << "static int " << cpythonSetterFunctionName(metaField) << "(PyObject* " PYTHON_SELF_VAR ", PyObject* pyIn, void*)" << endl; + s << '{' << endl; + + writeCppSelfDefinition(s, context); + + s << INDENT << "if (pyIn == 0) {" << endl; + { + Indentation indent(INDENT); + s << INDENT << "PyErr_SetString(PyExc_TypeError, \"'"; + s << metaField->name() << "' may not be deleted\");" << endl; + s << INDENT << "return -1;" << endl; + } + s << INDENT << '}' << endl; + + AbstractMetaType* fieldType = metaField->type(); + + s << INDENT << "PythonToCppFunc " << PYTHON_TO_CPP_VAR << ';' << endl; + s << INDENT << "if (!"; + writeTypeCheck(s, fieldType, QLatin1String("pyIn"), isNumber(fieldType->typeEntry())); + s << ") {" << endl; + { + Indentation indent(INDENT); + s << INDENT << "PyErr_SetString(PyExc_TypeError, \"wrong type attributed to '"; + s << metaField->name() << "', '" << fieldType->name() << "' or convertible type expected\");" << endl; + s << INDENT << "return -1;" << endl; + } + s << INDENT << '}' << endl << endl; + + QString cppField = QString::fromLatin1("%1->%2").arg(QLatin1String(CPP_SELF_VAR), metaField->name()); + s << INDENT; + if (avoidProtectedHack() && metaField->isProtected()) { + s << getFullTypeNameWithoutModifiers(fieldType); + s << (fieldType->indirections() == 1 ? "*" : "") << " cppOut;" << endl; + s << INDENT << PYTHON_TO_CPP_VAR << "(pyIn, &cppOut);" << endl; + s << INDENT << QString::fromLatin1("((%1*)%2)->%3(cppOut)") + .arg(wrapperName(metaField->enclosingClass()), + QLatin1String(CPP_SELF_VAR), protectedFieldSetterName(metaField)); + } else if (isCppIntegralPrimitive(fieldType) || fieldType->typeEntry()->isEnum() || fieldType->typeEntry()->isFlags()) { + s << getFullTypeNameWithoutModifiers(fieldType) << " cppOut_local = " << cppField << ';' << endl; + s << INDENT << PYTHON_TO_CPP_VAR << "(pyIn, &cppOut_local);" << endl; + s << INDENT << cppField << " = cppOut_local"; + } else { + s << getFullTypeNameWithoutModifiers(fieldType); + s << QString::fromLatin1("*").repeated(fieldType->indirections()) << "& cppOut_ptr = "; + s << cppField << ';' << endl; + s << INDENT << PYTHON_TO_CPP_VAR << "(pyIn, &cppOut_ptr)"; + } + s << ';' << endl << endl; + + if (isPointerToWrapperType(fieldType)) { + s << INDENT << "Shiboken::Object::keepReference(reinterpret_cast<SbkObject*>(" PYTHON_SELF_VAR "), \""; + s << metaField->name() << "\", pyIn);" << endl; + } + + s << INDENT << "return 0;" << endl; + s << '}' << endl; +} + +void CppGenerator::writeRichCompareFunction(QTextStream &s, GeneratorContext &context) +{ + const AbstractMetaClass *metaClass = context.metaClass(); + QString baseName = cpythonBaseName(metaClass); + s << "static PyObject* "; + s << baseName << "_richcompare(PyObject* " PYTHON_SELF_VAR ", PyObject* " PYTHON_ARG ", int op)" << endl; + s << '{' << endl; + writeCppSelfDefinition(s, context, false, true); + writeUnusedVariableCast(s, QLatin1String(CPP_SELF_VAR)); + s << INDENT << "PyObject* " PYTHON_RETURN_VAR " = 0;" << endl; + s << INDENT << "PythonToCppFunc " PYTHON_TO_CPP_VAR << ';' << endl; + writeUnusedVariableCast(s, QLatin1String(PYTHON_TO_CPP_VAR)); + s << endl; + + s << INDENT << "switch (op) {" << endl; + { + Indentation indent(INDENT); + const QVector<AbstractMetaFunctionList> &groupedFuncs = filterGroupedOperatorFunctions(metaClass, AbstractMetaClass::ComparisonOp); + for (const AbstractMetaFunctionList &overloads : groupedFuncs) { + const AbstractMetaFunction* rfunc = overloads[0]; + + QString operatorId = ShibokenGenerator::pythonRichCompareOperatorId(rfunc); + s << INDENT << "case " << operatorId << ':' << endl; + + Indentation indent(INDENT); + + QString op = rfunc->originalName(); + op = op.right(op.size() - QLatin1String("operator").size()); + + int alternativeNumericTypes = 0; + for (const AbstractMetaFunction *func : overloads) { + if (!func->isStatic() && + ShibokenGenerator::isNumber(func->arguments()[0]->type()->typeEntry())) + alternativeNumericTypes++; + } + + bool first = true; + OverloadData overloadData(overloads, this); + const OverloadDataList &nextOverloads = overloadData.nextOverloadData(); + for (OverloadData *od : nextOverloads) { + const AbstractMetaFunction* func = od->referenceFunction(); + if (func->isStatic()) + continue; + const AbstractMetaType* argType = getArgumentType(func, 1); + if (!argType) + continue; + if (!first) { + s << " else "; + } else { + first = false; + s << INDENT; + } + s << "if ("; + writeTypeCheck(s, argType, QLatin1String(PYTHON_ARG), alternativeNumericTypes == 1 || isPyInt(argType)); + s << ") {" << endl; + { + Indentation indent(INDENT); + s << INDENT << "// " << func->signature() << endl; + writeArgumentConversion(s, argType, QLatin1String(CPP_ARG0), + QLatin1String(PYTHON_ARG), metaClass, + QString(), func->isUserAdded()); + + // If the function is user added, use the inject code + if (func->isUserAdded()) { + CodeSnipList snips = func->injectedCodeSnips(); + writeCodeSnips(s, snips, TypeSystem::CodeSnipPositionAny, TypeSystem::TargetLangCode, func, func->arguments().last()); + } else { + QString expression = QString::fromLatin1("%1%2 %3 (%4" CPP_ARG0 ")") + .arg(func->isPointerOperator() ? QLatin1String("&") : QString(), + QLatin1String(CPP_SELF_VAR), op, + shouldDereferenceAbstractMetaTypePointer(argType) ? QLatin1String("*") : QString()); + s << INDENT; + if (func->type()) + s << func->type()->cppSignature() << " " CPP_RETURN_VAR " = "; + s << expression << ';' << endl; + s << INDENT << PYTHON_RETURN_VAR " = "; + if (func->type()) + writeToPythonConversion(s, func->type(), metaClass, QLatin1String(CPP_RETURN_VAR)); + else + s << "Py_None;" << endl << INDENT << "Py_INCREF(Py_None)"; + s << ';' << endl; + } + } + s << INDENT << '}'; + } + + s << " else {" << endl; + if (operatorId == QLatin1String("Py_EQ") || operatorId == QLatin1String("Py_NE")) { + Indentation indent(INDENT); + s << INDENT << PYTHON_RETURN_VAR " = " + << (operatorId == QLatin1String("Py_EQ") ? "Py_False" : "Py_True") << ';' << endl; + s << INDENT << "Py_INCREF(" PYTHON_RETURN_VAR ");" << endl; + } else { + Indentation indent(INDENT); + s << INDENT << "goto " << baseName << "_RichComparison_TypeError;" << endl; + } + s << INDENT << '}' << endl << endl; + + s << INDENT << "break;" << endl; + } + s << INDENT << "default:" << endl; + { + Indentation indent(INDENT); + s << INDENT << "goto " << baseName << "_RichComparison_TypeError;" << endl; + } + } + s << INDENT << '}' << endl << endl; + + s << INDENT << "if (" PYTHON_RETURN_VAR " && !PyErr_Occurred())" << endl; + { + Indentation indent(INDENT); + s << INDENT << "return " PYTHON_RETURN_VAR ";" << endl; + } + s << INDENT << baseName << "_RichComparison_TypeError:" << endl; + s << INDENT << "PyErr_SetString(PyExc_NotImplementedError, \"operator not implemented.\");" << endl; + s << INDENT << "return " << m_currentErrorCode << ';' << endl << endl; + s << '}' << endl << endl; +} + +void CppGenerator::writeMethodDefinitionEntry(QTextStream& s, const AbstractMetaFunctionList overloads) +{ + Q_ASSERT(!overloads.isEmpty()); + OverloadData overloadData(overloads, this); + bool usePyArgs = pythonFunctionWrapperUsesListOfArguments(overloadData); + const AbstractMetaFunction* func = overloadData.referenceFunction(); + int min = overloadData.minArgs(); + int max = overloadData.maxArgs(); + + s << '"' << func->name() << "\", (PyCFunction)" << cpythonFunctionName(func) << ", "; + if ((min == max) && (max < 2) && !usePyArgs) { + if (max == 0) + s << "METH_NOARGS"; + else + s << "METH_O"; + } else { + s << "METH_VARARGS"; + if (overloadData.hasArgumentWithDefaultValue()) + s << "|METH_KEYWORDS"; + } + if (func->ownerClass() && overloadData.hasStaticFunction()) + s << "|METH_STATIC"; +} + +void CppGenerator::writeMethodDefinition(QTextStream& s, const AbstractMetaFunctionList overloads) +{ + Q_ASSERT(!overloads.isEmpty()); + const AbstractMetaFunction* func = overloads.first(); + if (m_tpFuncs.contains(func->name())) + return; + + s << INDENT; + if (OverloadData::hasStaticAndInstanceFunctions(overloads)) { + s << cpythonMethodDefinitionName(func); + } else { + s << '{'; + writeMethodDefinitionEntry(s, overloads); + s << '}'; + } + s << ',' << endl; +} + +void CppGenerator::writeEnumsInitialization(QTextStream& s, AbstractMetaEnumList& enums) +{ + if (enums.isEmpty()) + return; + s << INDENT << "// Initialization of enums." << endl << endl; + for (const AbstractMetaEnum *cppEnum : qAsConst(enums)) { + if (cppEnum->isPrivate()) + continue; + writeEnumInitialization(s, cppEnum); + } +} + +void CppGenerator::writeEnumInitialization(QTextStream& s, const AbstractMetaEnum* cppEnum) +{ + const AbstractMetaClass* enclosingClass = getProperEnclosingClassForEnum(cppEnum); + const AbstractMetaClass* upper = enclosingClass ? enclosingClass->enclosingClass() : 0; + bool hasUpperEnclosingClass = upper && upper->typeEntry()->codeGeneration() != TypeEntry::GenerateForSubclass; + QString enclosingObjectVariable; + if (enclosingClass) + enclosingObjectVariable = QLatin1Char('&') + cpythonTypeName(enclosingClass); + else if (hasUpperEnclosingClass) + enclosingObjectVariable = QLatin1String("enclosingClass"); + else + enclosingObjectVariable = QLatin1String("module"); + + s << INDENT << "// Initialization of "; + s << (cppEnum->isAnonymous() ? "anonymous enum identified by enum value" : "enum"); + s << " '" << cppEnum->name() << "'." << endl; + + if (!cppEnum->isAnonymous()) { + FlagsTypeEntry* flags = cppEnum->typeEntry()->flags(); + if (flags) { + s << INDENT << cpythonTypeNameExt(flags) << " = PySide::QFlags::create(\"" << flags->flagsName() << "\", &" + << cpythonEnumName(cppEnum) << "_as_number);" << endl; + } + + s << INDENT << cpythonTypeNameExt(cppEnum->typeEntry()) << " = Shiboken::Enum::"; + s << ((enclosingClass || hasUpperEnclosingClass) ? "createScopedEnum" : "createGlobalEnum"); + s << '(' << enclosingObjectVariable << ',' << endl; + { + Indentation indent(INDENT); + s << INDENT << '"' << cppEnum->name() << "\"," << endl; + s << INDENT << '"' << getClassTargetFullName(cppEnum) << "\"," << endl; + s << INDENT << '"' << (cppEnum->enclosingClass() ? (cppEnum->enclosingClass()->qualifiedCppName() + QLatin1String("::")) : QString()); + s << cppEnum->name() << '"'; + if (flags) + s << ',' << endl << INDENT << cpythonTypeNameExt(flags); + s << ");" << endl; + } + s << INDENT << "if (!" << cpythonTypeNameExt(cppEnum->typeEntry()) << ')' << endl; + { + Indentation indent(INDENT); + s << INDENT << "return " << m_currentErrorCode << ';' << endl << endl; + } + } + + const AbstractMetaEnumValueList &enumValues = cppEnum->values(); + for (const AbstractMetaEnumValue *enumValue : enumValues) { + if (cppEnum->typeEntry()->isEnumValueRejected(enumValue->name())) + continue; + + QString enumValueText; + if (!avoidProtectedHack() || !cppEnum->isProtected()) { + enumValueText = QLatin1String("(long) "); + if (cppEnum->enclosingClass()) + enumValueText += cppEnum->enclosingClass()->qualifiedCppName() + QLatin1String("::"); + enumValueText += enumValue->name(); + } else { + enumValueText += QString::number(enumValue->value()); + } + + if (cppEnum->isAnonymous()) { + if (enclosingClass || hasUpperEnclosingClass) { + s << INDENT << '{' << endl; + { + Indentation indent(INDENT); + s << INDENT << "PyObject* anonEnumItem = PyInt_FromLong(" << enumValueText << ");" << endl; + s << INDENT << "if (PyDict_SetItemString(reinterpret_cast<SbkObjectType *>(" << enclosingObjectVariable + << ")->super.ht_type.tp_dict, \"" << enumValue->name() << "\", anonEnumItem) < 0)" << endl; + { + Indentation indent(INDENT); + s << INDENT << "return " << m_currentErrorCode << ';' << endl; + } + s << INDENT << "Py_DECREF(anonEnumItem);" << endl; + } + s << INDENT << '}' << endl; + } else { + s << INDENT << "if (PyModule_AddIntConstant(module, \"" << enumValue->name() << "\", "; + s << enumValueText << ") < 0)" << endl; + { + Indentation indent(INDENT); + s << INDENT << "return " << m_currentErrorCode << ';' << endl; + } + } + } else { + s << INDENT << "if (!Shiboken::Enum::"; + s << ((enclosingClass || hasUpperEnclosingClass) ? "createScopedEnumItem" : "createGlobalEnumItem"); + s << '(' << cpythonTypeNameExt(cppEnum->typeEntry()) << ',' << endl; + Indentation indent(INDENT); + s << INDENT << enclosingObjectVariable << ", \"" << enumValue->name() << "\", "; + s << enumValueText << "))" << endl; + s << INDENT << "return " << m_currentErrorCode << ';' << endl; + } + } + + writeEnumConverterInitialization(s, cppEnum); + + s << INDENT << "// End of '" << cppEnum->name() << "' enum"; + if (cppEnum->typeEntry()->flags()) + s << "/flags"; + s << '.' << endl << endl; +} + +void CppGenerator::writeSignalInitialization(QTextStream& s, const AbstractMetaClass* metaClass) +{ + // Try to check something and print some warnings + const AbstractMetaFunctionList &signalFuncs = metaClass->cppSignalFunctions(); + for (const AbstractMetaFunction *cppSignal : signalFuncs) { + if (cppSignal->declaringClass() != metaClass) + continue; + const AbstractMetaArgumentList &arguments = cppSignal->arguments(); + for (AbstractMetaArgument *arg : arguments) { + AbstractMetaType* metaType = arg->type(); + const QByteArray origType = + QMetaObject::normalizedType(qPrintable(metaType->originalTypeDescription())); + const QByteArray cppSig = + QMetaObject::normalizedType(qPrintable(metaType->cppSignature())); + if ((origType != cppSig) && (!metaType->isFlags())) { + qCWarning(lcShiboken).noquote().nospace() + << "Typedef used on signal " << metaClass->qualifiedCppName() << "::" + << cppSignal->signature(); + } + } + } + + s << INDENT << "PySide::Signal::registerSignals(&" << cpythonTypeName(metaClass) << ", &::" + << metaClass->qualifiedCppName() << "::staticMetaObject);" << endl; +} + +void CppGenerator::writeFlagsToLong(QTextStream& s, const AbstractMetaEnum* cppEnum) +{ + FlagsTypeEntry* flagsEntry = cppEnum->typeEntry()->flags(); + if (!flagsEntry) + return; + s << "static PyObject* " << cpythonEnumName(cppEnum) << "_long(PyObject* " PYTHON_SELF_VAR ")" << endl; + s << "{" << endl; + s << INDENT << "int val;" << endl; + AbstractMetaType* flagsType = buildAbstractMetaTypeFromTypeEntry(flagsEntry); + s << INDENT << cpythonToCppConversionFunction(flagsType) << PYTHON_SELF_VAR << ", &val);" << endl; + s << INDENT << "return Shiboken::Conversions::copyToPython(Shiboken::Conversions::PrimitiveTypeConverter<int>(), &val);" << endl; + s << "}" << endl; +} + +void CppGenerator::writeFlagsNonZero(QTextStream& s, const AbstractMetaEnum* cppEnum) +{ + FlagsTypeEntry* flagsEntry = cppEnum->typeEntry()->flags(); + if (!flagsEntry) + return; + s << "static int " << cpythonEnumName(cppEnum) << "__nonzero(PyObject* " PYTHON_SELF_VAR ")" << endl; + s << "{" << endl; + + s << INDENT << "int val;" << endl; + AbstractMetaType* flagsType = buildAbstractMetaTypeFromTypeEntry(flagsEntry); + s << INDENT << cpythonToCppConversionFunction(flagsType) << PYTHON_SELF_VAR << ", &val);" << endl; + s << INDENT << "return val != 0;" << endl; + s << "}" << endl; +} + +void CppGenerator::writeFlagsMethods(QTextStream& s, const AbstractMetaEnum* cppEnum) +{ + writeFlagsBinaryOperator(s, cppEnum, QLatin1String("and"), QLatin1String("&")); + writeFlagsBinaryOperator(s, cppEnum, QLatin1String("or"), QLatin1String("|")); + writeFlagsBinaryOperator(s, cppEnum, QLatin1String("xor"), QLatin1String("^")); + + writeFlagsUnaryOperator(s, cppEnum, QLatin1String("invert"), QLatin1String("~")); + writeFlagsToLong(s, cppEnum); + writeFlagsNonZero(s, cppEnum); + + s << endl; +} + +void CppGenerator::writeFlagsNumberMethodsDefinition(QTextStream& s, const AbstractMetaEnum* cppEnum) +{ + QString cpythonName = cpythonEnumName(cppEnum); + + s << "static PyNumberMethods " << cpythonName << "_as_number = {" << endl; + s << INDENT << "/*nb_add*/ 0," << endl; + s << INDENT << "/*nb_subtract*/ 0," << endl; + s << INDENT << "/*nb_multiply*/ 0," << endl; + s << INDENT << "#ifndef IS_PY3K" << endl; + s << INDENT << "/* nb_divide */ 0," << endl; + s << INDENT << "#endif" << endl; + s << INDENT << "/*nb_remainder*/ 0," << endl; + s << INDENT << "/*nb_divmod*/ 0," << endl; + s << INDENT << "/*nb_power*/ 0," << endl; + s << INDENT << "/*nb_negative*/ 0," << endl; + s << INDENT << "/*nb_positive*/ 0," << endl; + s << INDENT << "/*nb_absolute*/ 0," << endl; + s << INDENT << "/*nb_nonzero*/ " << cpythonName << "__nonzero," << endl; + s << INDENT << "/*nb_invert*/ (unaryfunc)" << cpythonName << "___invert__," << endl; + s << INDENT << "/*nb_lshift*/ 0," << endl; + s << INDENT << "/*nb_rshift*/ 0," << endl; + s << INDENT << "/*nb_and*/ (binaryfunc)" << cpythonName << "___and__," << endl; + s << INDENT << "/*nb_xor*/ (binaryfunc)" << cpythonName << "___xor__," << endl; + s << INDENT << "/*nb_or*/ (binaryfunc)" << cpythonName << "___or__," << endl; + s << INDENT << "#ifndef IS_PY3K" << endl; + s << INDENT << "/* nb_coerce */ 0," << endl; + s << INDENT << "#endif" << endl; + s << INDENT << "/*nb_int*/ " << cpythonName << "_long," << endl; + s << INDENT << "#ifdef IS_PY3K" << endl; + s << INDENT << "/*nb_reserved*/ 0," << endl; + s << INDENT << "/*nb_float*/ 0," << endl; + s << INDENT << "#else" << endl; + s << INDENT << "/*nb_long*/ " << cpythonName << "_long," << endl; + s << INDENT << "/*nb_float*/ 0," << endl; + s << INDENT << "/*nb_oct*/ 0," << endl; + s << INDENT << "/*nb_hex*/ 0," << endl; + s << INDENT << "#endif" << endl; + s << INDENT << "/*nb_inplace_add*/ 0," << endl; + s << INDENT << "/*nb_inplace_subtract*/ 0," << endl; + s << INDENT << "/*nb_inplace_multiply*/ 0," << endl; + s << INDENT << "#ifndef IS_PY3K" << endl; + s << INDENT << "/*nb_inplace_divide*/ 0," << endl; + s << INDENT << "#endif" << endl; + s << INDENT << "/*nb_inplace_remainder*/ 0," << endl; + s << INDENT << "/*nb_inplace_power*/ 0," << endl; + s << INDENT << "/*nb_inplace_lshift*/ 0," << endl; + s << INDENT << "/*nb_inplace_rshift*/ 0," << endl; + s << INDENT << "/*nb_inplace_and*/ 0," << endl; + s << INDENT << "/*nb_inplace_xor*/ 0," << endl; + s << INDENT << "/*nb_inplace_or*/ 0," << endl; + s << INDENT << "/*nb_floor_divide*/ 0," << endl; + s << INDENT << "/*nb_true_divide*/ 0," << endl; + s << INDENT << "/*nb_inplace_floor_divide*/ 0," << endl; + s << INDENT << "/*nb_inplace_true_divide*/ 0," << endl; + s << INDENT << "/*nb_index*/ 0" << endl; + s << "};" << endl << endl; +} + +void CppGenerator::writeFlagsBinaryOperator(QTextStream& s, const AbstractMetaEnum* cppEnum, + QString pyOpName, QString cppOpName) +{ + FlagsTypeEntry* flagsEntry = cppEnum->typeEntry()->flags(); + Q_ASSERT(flagsEntry); + + s << "PyObject* " << cpythonEnumName(cppEnum) << "___" << pyOpName << "__(PyObject* " PYTHON_SELF_VAR ", PyObject* " PYTHON_ARG ")" << endl; + s << '{' << endl; + + AbstractMetaType* flagsType = buildAbstractMetaTypeFromTypeEntry(flagsEntry); + s << INDENT << "::" << flagsEntry->originalName() << " cppResult, " CPP_SELF_VAR ", cppArg;" << endl; + s << "#ifdef IS_PY3K" << endl; + s << INDENT << CPP_SELF_VAR " = (::" << flagsEntry->originalName() << ")(int)PyLong_AsLong(" PYTHON_SELF_VAR ");" << endl; + s << INDENT << "cppArg = (" << flagsEntry->originalName() << ")(int)PyLong_AsLong(" PYTHON_ARG ");" << endl; + s << "#else" << endl; + s << INDENT << CPP_SELF_VAR " = (::" << flagsEntry->originalName() << ")(int)PyInt_AsLong(" PYTHON_SELF_VAR ");" << endl; + s << INDENT << "cppArg = (" << flagsEntry->originalName() << ")(int)PyInt_AsLong(" PYTHON_ARG ");" << endl; + s << "#endif" << endl << endl; + s << INDENT << "cppResult = " CPP_SELF_VAR " " << cppOpName << " cppArg;" << endl; + s << INDENT << "return "; + writeToPythonConversion(s, flagsType, 0, QLatin1String("cppResult")); + s << ';' << endl; + s << '}' << endl << endl; +} + +void CppGenerator::writeFlagsUnaryOperator(QTextStream& s, const AbstractMetaEnum* cppEnum, + QString pyOpName, QString cppOpName, bool boolResult) +{ + FlagsTypeEntry* flagsEntry = cppEnum->typeEntry()->flags(); + Q_ASSERT(flagsEntry); + + s << "PyObject* " << cpythonEnumName(cppEnum) << "___" << pyOpName << "__(PyObject* " PYTHON_SELF_VAR ", PyObject* " PYTHON_ARG ")" << endl; + s << '{' << endl; + + AbstractMetaType* flagsType = buildAbstractMetaTypeFromTypeEntry(flagsEntry); + s << INDENT << "::" << flagsEntry->originalName() << " " CPP_SELF_VAR ";" << endl; + s << INDENT << cpythonToCppConversionFunction(flagsType) << PYTHON_SELF_VAR << ", &" CPP_SELF_VAR ");" << endl; + s << INDENT; + if (boolResult) + s << "bool"; + else + s << "::" << flagsEntry->originalName(); + s << " cppResult = " << cppOpName << CPP_SELF_VAR ";" << endl; + s << INDENT << "return "; + if (boolResult) + s << "PyBool_FromLong(cppResult)"; + else + writeToPythonConversion(s, flagsType, 0, QLatin1String("cppResult")); + s << ';' << endl; + s << '}' << endl << endl; +} + +QString CppGenerator::getInitFunctionName(GeneratorContext &context) const +{ + QString initFunctionName; + if (!context.forSmartPointer()) { + initFunctionName = context.metaClass()->qualifiedCppName(); + initFunctionName.replace(QLatin1String("::"), QLatin1String("_")); + } else { + initFunctionName = getFilteredCppSignatureString(context.preciseType()->cppSignature()); + } + return initFunctionName; +} + +void CppGenerator::writeClassRegister(QTextStream &s, + const AbstractMetaClass *metaClass, + GeneratorContext &classContext) +{ + const ComplexTypeEntry* classTypeEntry = metaClass->typeEntry(); + + const AbstractMetaClass* enc = metaClass->enclosingClass(); + bool hasEnclosingClass = enc && enc->typeEntry()->codeGeneration() != TypeEntry::GenerateForSubclass; + QString enclosingObjectVariable = hasEnclosingClass ? QLatin1String("enclosingClass") : QLatin1String("module"); + + QString pyTypeName = cpythonTypeName(metaClass); + QString initFunctionName = getInitFunctionName(classContext); + s << "void init_" << initFunctionName; + s << "(PyObject* " << enclosingObjectVariable << ")" << endl; + s << '{' << endl; + + if (supportsNumberProtocol(metaClass)) { + s << INDENT << "// type has number operators" << endl; + writeTypeAsNumberDefinition(s, metaClass); + s << INDENT << pyTypeName << ".super.ht_type.tp_as_number = &" << pyTypeName << "AsNumber;" << endl; + s << endl; + } + + if (supportsSequenceProtocol(metaClass)) { + s << INDENT << "// type supports sequence protocol" << endl; + writeTypeAsSequenceDefinition(s, metaClass); + s << INDENT << pyTypeName << ".super.ht_type.tp_as_sequence = &" << pyTypeName << "AsSequence;" << endl; + s << endl; + } + + if (supportsMappingProtocol(metaClass)) { + s << INDENT << "// type supports mapping protocol" << endl; + writeTypeAsMappingDefinition(s, metaClass); + s << INDENT << pyTypeName << ".super.ht_type.tp_as_mapping = &" << pyTypeName << "AsMapping;" << endl; + s << endl; + } + + if (!classContext.forSmartPointer()) + s << INDENT << cpythonTypeNameExt(classTypeEntry); + else + s << INDENT << cpythonTypeNameExt(classContext.preciseType()); + + s << " = reinterpret_cast<PyTypeObject*>(&" << pyTypeName << ");" << endl; + s << endl; + + // Multiple inheritance + QString pyTypeBasesVariable = pyTypeName + QLatin1String("_bases"); + const AbstractMetaClassList baseClasses = getBaseClasses(metaClass); + if (metaClass->baseClassNames().size() > 1) { + s << INDENT << "PyObject* " << pyTypeBasesVariable << " = PyTuple_Pack(" << baseClasses.size() << ',' << endl; + QStringList bases; + for (const AbstractMetaClass *base : baseClasses) + bases << QLatin1String("(PyObject*)") + cpythonTypeNameExt(base->typeEntry()); + Indentation indent(INDENT); + QString separator; + QTextStream sep(&separator); + sep << "," << endl << INDENT; + s << INDENT << bases.join(separator) << ");" << endl << endl; + } + + // Create type and insert it in the module or enclosing class. + s << INDENT << "if (!Shiboken::ObjectType::introduceWrapperType(" << enclosingObjectVariable; + QString typeName; + if (!classContext.forSmartPointer()) + typeName = metaClass->name(); + else + typeName = classContext.preciseType()->cppSignature(); + + s << ", \"" << typeName << "\", \""; + + // Original name + if (!classContext.forSmartPointer()) + s << metaClass->qualifiedCppName() << (isObjectType(classTypeEntry) ? "*" : ""); + else + s << classContext.preciseType()->cppSignature(); + + s << "\"," << endl; + { + Indentation indent(INDENT); + s << INDENT << "&" << pyTypeName; + + // Set destructor function + if (!metaClass->isNamespace() && !metaClass->hasPrivateDestructor()) { + QString dtorClassName = metaClass->qualifiedCppName(); + if ((avoidProtectedHack() && metaClass->hasProtectedDestructor()) || classTypeEntry->isValue()) + dtorClassName = wrapperName(metaClass); + if (classContext.forSmartPointer()) + dtorClassName = wrapperName(classContext.preciseType()); + + s << ", &Shiboken::callCppDestructor< ::" << dtorClassName << " >"; + } else if (metaClass->baseClass() || hasEnclosingClass) { + s << ", 0"; + } + + // Base type + if (metaClass->baseClass()) { + s << ", reinterpret_cast<SbkObjectType *>(" << cpythonTypeNameExt(metaClass->baseClass()->typeEntry()) << ')'; + // The other base types + if (metaClass->baseClassNames().size() > 1) + s << ", " << pyTypeBasesVariable; + else if (hasEnclosingClass) + s << ", 0"; + } else if (hasEnclosingClass) { + s << ", 0, 0"; + } + if (hasEnclosingClass) + s << ", true"; + s << ")) {" << endl; + s << INDENT << "return;" << endl; + } + s << INDENT << '}' << endl << endl; + + // Register conversions for the type. + writeConverterRegister(s, metaClass, classContext); + s << endl; + + // class inject-code target/beginning + if (!classTypeEntry->codeSnips().isEmpty()) { + writeCodeSnips(s, classTypeEntry->codeSnips(), TypeSystem::CodeSnipPositionBeginning, TypeSystem::TargetLangCode, metaClass); + s << endl; + } + + // Fill multiple inheritance data, if needed. + const AbstractMetaClass* miClass = getMultipleInheritingClass(metaClass); + if (miClass) { + s << INDENT << "MultipleInheritanceInitFunction func = "; + if (miClass == metaClass) { + s << multipleInheritanceInitializerFunctionName(miClass) << ";" << endl; + } else { + s << "Shiboken::ObjectType::getMultipleIheritanceFunction(reinterpret_cast<SbkObjectType*>("; + s << cpythonTypeNameExt(miClass->typeEntry()) << "));" << endl; + } + s << INDENT << "Shiboken::ObjectType::setMultipleIheritanceFunction(&"; + s << cpythonTypeName(metaClass) << ", func);" << endl; + s << INDENT << "Shiboken::ObjectType::setCastFunction(&" << cpythonTypeName(metaClass); + s << ", &" << cpythonSpecialCastFunctionName(metaClass) << ");" << endl; + } + + // Set typediscovery struct or fill the struct of another one + if (metaClass->isPolymorphic() && metaClass->baseClass()) { + s << INDENT << "Shiboken::ObjectType::setTypeDiscoveryFunctionV2(&" << cpythonTypeName(metaClass); + s << ", &" << cpythonBaseName(metaClass) << "_typeDiscovery);" << endl << endl; + } + + AbstractMetaEnumList classEnums = metaClass->enums(); + const AbstractMetaClassList &innerClasses = metaClass->innerClasses(); + for (AbstractMetaClass *innerClass : innerClasses) + lookForEnumsInClassesNotToBeGenerated(classEnums, innerClass); + + ErrorCode errorCode(QString::null); + writeEnumsInitialization(s, classEnums); + + if (metaClass->hasSignals()) + writeSignalInitialization(s, metaClass); + + // Write static fields + const AbstractMetaFieldList &fields = metaClass->fields(); + for (const AbstractMetaField *field : fields) { + if (!field->isStatic()) + continue; + s << INDENT << QLatin1String("PyDict_SetItemString(") + cpythonTypeName(metaClass) + QLatin1String(".super.ht_type.tp_dict, \""); + s << field->name() << "\", "; + writeToPythonConversion(s, field->type(), metaClass, metaClass->qualifiedCppName() + QLatin1String("::") + field->name()); + s << ");" << endl; + } + s << endl; + + // class inject-code target/end + if (!classTypeEntry->codeSnips().isEmpty()) { + s << endl; + writeCodeSnips(s, classTypeEntry->codeSnips(), TypeSystem::CodeSnipPositionEnd, TypeSystem::TargetLangCode, metaClass); + } + + if (usePySideExtensions()) { + if (avoidProtectedHack() && shouldGenerateCppWrapper(metaClass)) + s << INDENT << wrapperName(metaClass) << "::pysideInitQtMetaTypes();\n"; + else + writeInitQtMetaTypeFunctionBody(s, classContext); + } + + if (usePySideExtensions() && metaClass->isQObject()) { + s << INDENT << "Shiboken::ObjectType::setSubTypeInitHook(&" << pyTypeName << ", &PySide::initQObjectSubType);" << endl; + s << INDENT << "PySide::initDynamicMetaObject(&" << pyTypeName << ", &::" << metaClass->qualifiedCppName() + << "::staticMetaObject, sizeof(::" << metaClass->qualifiedCppName() << "));" << endl; + } + + s << '}' << endl; +} + +void CppGenerator::writeInitQtMetaTypeFunctionBody(QTextStream &s, GeneratorContext &context) const +{ + const AbstractMetaClass* metaClass = context.metaClass(); + // Gets all class name variants used on different possible scopes + QStringList nameVariants; + if (!context.forSmartPointer()) + nameVariants << metaClass->name(); + else + nameVariants << context.preciseType()->cppSignature(); + + const AbstractMetaClass* enclosingClass = metaClass->enclosingClass(); + while (enclosingClass) { + if (enclosingClass->typeEntry()->generateCode()) + nameVariants << (enclosingClass->name() + QLatin1String("::") + nameVariants.last()); + enclosingClass = enclosingClass->enclosingClass(); + } + + QString className; + if (!context.forSmartPointer()) + className = metaClass->qualifiedCppName(); + else + className = context.preciseType()->cppSignature(); + + if (!metaClass->isNamespace() && !metaClass->isAbstract()) { + // Qt metatypes are registered only on their first use, so we do this now. + bool canBeValue = false; + if (!isObjectType(metaClass)) { + // check if there's a empty ctor + const AbstractMetaFunctionList &funcs = metaClass->functions(); + for (AbstractMetaFunction *func : funcs) { + if (func->isConstructor() && !func->arguments().count()) { + canBeValue = true; + break; + } + } + } + + if (canBeValue) { + for (const QString &name : qAsConst(nameVariants)) { + if (name == QLatin1String("iterator")) { + qCWarning(lcShiboken).noquote().nospace() + << QString::fromLatin1("%1:%2 FIXME:\n" + " The code tried to qRegisterMetaType the unqualified name " + "'iterator'. This is currently fixed by a hack(ct) and needs improvement!") + .arg(QFile::decodeName(__FILE__)).arg(__LINE__); + continue; + } + s << INDENT << "qRegisterMetaType< ::" << className << " >(\"" << name << "\");" << endl; + } + } + } + + const AbstractMetaEnumList &enums = metaClass->enums(); + for (AbstractMetaEnum *metaEnum : enums) { + if (!metaEnum->isPrivate() && !metaEnum->isAnonymous()) { + for (const QString &name : qAsConst(nameVariants)) + s << INDENT << "qRegisterMetaType< ::" << metaEnum->typeEntry()->qualifiedCppName() << " >(\"" << name << "::" << metaEnum->name() << "\");" << endl; + + if (metaEnum->typeEntry()->flags()) { + QString n = metaEnum->typeEntry()->flags()->originalName(); + s << INDENT << "qRegisterMetaType< ::" << n << " >(\"" << n << "\");" << endl; + } + } + } +} + +void CppGenerator::writeTypeDiscoveryFunction(QTextStream& s, const AbstractMetaClass* metaClass) +{ + QString polymorphicExpr = metaClass->typeEntry()->polymorphicIdValue(); + + s << "static void* " << cpythonBaseName(metaClass) << "_typeDiscovery(void* cptr, SbkObjectType* instanceType)\n{" << endl; + + if (!polymorphicExpr.isEmpty()) { + polymorphicExpr = polymorphicExpr.replace(QLatin1String("%1"), + QLatin1String(" reinterpret_cast< ::") + + metaClass->qualifiedCppName() + + QLatin1String("*>(cptr)")); + s << INDENT << " if (" << polymorphicExpr << ")" << endl; + { + Indentation indent(INDENT); + s << INDENT << "return cptr;" << endl; + } + } else if (metaClass->isPolymorphic()) { + const AbstractMetaClassList &ancestors = getAllAncestors(metaClass); + for (AbstractMetaClass *ancestor : ancestors) { + if (ancestor->baseClass()) + continue; + if (ancestor->isPolymorphic()) { + s << INDENT << "if (instanceType == reinterpret_cast<SbkObjectType*>(Shiboken::SbkType< ::" + << ancestor->qualifiedCppName() << " >()))" << endl; + Indentation indent(INDENT); + s << INDENT << "return dynamic_cast< ::" << metaClass->qualifiedCppName() + << "*>(reinterpret_cast< ::"<< ancestor->qualifiedCppName() << "*>(cptr));" << endl; + } else { + qCWarning(lcShiboken).noquote().nospace() + << metaClass->qualifiedCppName() << " inherits from a non polymorphic type (" + << ancestor->qualifiedCppName() << "), type discovery based on RTTI is " + "impossible, write a polymorphic-id-expression for this type."; + } + + } + } + s << INDENT << "return 0;" << endl; + s << "}\n\n"; +} + +QString CppGenerator::writeSmartPointerGetterCast() { + return QLatin1String("const_cast<char *>(" SMART_POINTER_GETTER ")"); +} + +void CppGenerator::writeSetattroFunction(QTextStream &s, GeneratorContext &context) +{ + const AbstractMetaClass* metaClass = context.metaClass(); + s << "static int " << cpythonSetattroFunctionName(metaClass) << "(PyObject* " PYTHON_SELF_VAR ", PyObject* name, PyObject* value)" << endl; + s << '{' << endl; + if (usePySideExtensions()) { + s << INDENT << "Shiboken::AutoDecRef pp(reinterpret_cast<PyObject*>(PySide::Property::getObject(" PYTHON_SELF_VAR ", name)));" << endl; + s << INDENT << "if (!pp.isNull())" << endl; + Indentation indent(INDENT); + s << INDENT << "return PySide::Property::setValue(reinterpret_cast<PySideProperty*>(pp.object()), " PYTHON_SELF_VAR ", value);" << endl; + } + + if (context.forSmartPointer()) { + s << INDENT << "// Try to find the 'name' attribute, by retrieving the PyObject for the corresponding C++ object held by the smart pointer." << endl; + s << INDENT << "PyObject *rawObj = PyObject_CallMethod(" PYTHON_SELF_VAR ", " + << writeSmartPointerGetterCast() << ", 0);" << endl; + s << INDENT << "if (rawObj) {" << endl; + { + Indentation indent(INDENT); + s << INDENT << "int hasAttribute = PyObject_HasAttr(rawObj, name);" << endl; + s << INDENT << "if (hasAttribute) {" << endl; + { + Indentation indent(INDENT); + s << INDENT << "return PyObject_GenericSetAttr(rawObj, name, value);" << endl; + } + s << INDENT << '}' << endl; + s << INDENT << "Py_DECREF(rawObj);" << endl; + } + s << INDENT << '}' << endl; + + } + + s << INDENT << "return PyObject_GenericSetAttr(" PYTHON_SELF_VAR ", name, value);" << endl; + s << '}' << endl; +} + +static inline QString qObjectClassName() { return QStringLiteral("QObject"); } +static inline QString qMetaObjectClassName() { return QStringLiteral("QMetaObject"); } + +void CppGenerator::writeGetattroFunction(QTextStream& s, GeneratorContext &context) +{ + const AbstractMetaClass* metaClass = context.metaClass(); + s << "static PyObject* " << cpythonGetattroFunctionName(metaClass) << "(PyObject* " PYTHON_SELF_VAR ", PyObject* name)" << endl; + s << '{' << endl; + + QString getattrFunc; + if (usePySideExtensions() && metaClass->isQObject()) { + AbstractMetaClass *qobjectClass = AbstractMetaClass::findClass(classes(), qObjectClassName()); + getattrFunc = QString::fromLatin1("PySide::getMetaDataFromQObject(%1, " PYTHON_SELF_VAR ", name)") + .arg(cpythonWrapperCPtr(qobjectClass, QLatin1String(PYTHON_SELF_VAR))); + } else { + getattrFunc = QLatin1String("PyObject_GenericGetAttr(" PYTHON_SELF_VAR ", name)"); + } + + if (classNeedsGetattroFunction(metaClass)) { + s << INDENT << "if (" PYTHON_SELF_VAR ") {" << endl; + { + Indentation indent(INDENT); + s << INDENT << "// Search the method in the instance dict" << endl; + s << INDENT << "if (reinterpret_cast<SbkObject*>(" PYTHON_SELF_VAR ")->ob_dict) {" << endl; + { + Indentation indent(INDENT); + s << INDENT << "PyObject* meth = PyDict_GetItem(reinterpret_cast<SbkObject*>(" PYTHON_SELF_VAR ")->ob_dict, name);" << endl; + s << INDENT << "if (meth) {" << endl; + { + Indentation indent(INDENT); + s << INDENT << "Py_INCREF(meth);" << endl; + s << INDENT << "return meth;" << endl; + } + s << INDENT << '}' << endl; + } + s << INDENT << '}' << endl; + s << INDENT << "// Search the method in the type dict" << endl; + s << INDENT << "if (Shiboken::Object::isUserType(" PYTHON_SELF_VAR ")) {" << endl; + { + Indentation indent(INDENT); + s << INDENT << "PyObject* meth = PyDict_GetItem(" PYTHON_SELF_VAR "->ob_type->tp_dict, name);" << endl; + s << INDENT << "if (meth)" << endl; + { + Indentation indent(INDENT); + s << INDENT << "return PyFunction_Check(meth) ? SBK_PyMethod_New(meth, " PYTHON_SELF_VAR ") : " << getattrFunc << ';' << endl; + } + } + s << INDENT << '}' << endl; + + const AbstractMetaFunctionList &funcs = getMethodsWithBothStaticAndNonStaticMethods(metaClass); + for (const AbstractMetaFunction *func : funcs) { + QString defName = cpythonMethodDefinitionName(func); + s << INDENT << "static PyMethodDef non_static_" << defName << " = {" << endl; + { + Indentation indent(INDENT); + s << INDENT << defName << ".ml_name," << endl; + s << INDENT << defName << ".ml_meth," << endl; + s << INDENT << defName << ".ml_flags & (~METH_STATIC)," << endl; + s << INDENT << defName << ".ml_doc," << endl; + } + s << INDENT << "};" << endl; + s << INDENT << "if (Shiboken::String::compare(name, \"" << func->name() << "\") == 0)" << endl; + Indentation indent(INDENT); + s << INDENT << "return PyCFunction_NewEx(&non_static_" << defName << ", " PYTHON_SELF_VAR ", 0);" << endl; + } + } + s << INDENT << '}' << endl; + } + + if (context.forSmartPointer()) { + s << INDENT << "PyObject *tmp = " << getattrFunc << ';' << endl; + s << INDENT << "if (tmp) {" << endl; + { + Indentation indent(INDENT); + s << INDENT << "return tmp;" << endl; + } + s << INDENT << "} else {" << endl; + { + Indentation indent(INDENT); + s << INDENT << "if (!PyErr_ExceptionMatches(PyExc_AttributeError)) return NULL;" << endl; + s << INDENT << "PyErr_Clear();" << endl; + + s << INDENT << "// Try to find the 'name' attribute, by retrieving the PyObject for " + "the corresponding C++ object held by the smart pointer." << endl; + s << INDENT << "PyObject *rawObj = PyObject_CallMethod(" PYTHON_SELF_VAR ", " + << writeSmartPointerGetterCast() << ", 0);" << endl; + s << INDENT << "if (rawObj) {" << endl; + { + Indentation indent(INDENT); + s << INDENT << "PyObject *attribute = PyObject_GetAttr(rawObj, name);" << endl; + s << INDENT << "if (attribute) {" << endl; + { + Indentation indent(INDENT); + s << INDENT << "tmp = attribute;" << endl; + } + s << INDENT << '}' << endl; + s << INDENT << "Py_DECREF(rawObj);" << endl; + } + s << INDENT << '}' << endl; + s << INDENT << "if (!tmp) {" << endl; + { + Indentation indent(INDENT); + s << INDENT << "PyTypeObject *tp = Py_TYPE(self);" << endl; + s << INDENT << "PyErr_Format(PyExc_AttributeError," << endl; + s << INDENT << " \"'%.50s' object has no attribute '%.400s'\"," << endl; + s << INDENT << " tp->tp_name, PyBytes_AS_STRING(name));" << endl; + s << INDENT << "return NULL;" << endl; + } + s << INDENT << "} else {" << endl; + { + Indentation indent(INDENT); + s << INDENT << "return tmp;" << endl; + } + s << INDENT << '}' << endl; + + } + s << INDENT << '}' << endl; + + } else { + s << INDENT << "return " << getattrFunc << ';' << endl; + } + s << '}' << endl; +} + +bool CppGenerator::finishGeneration() +{ + //Generate CPython wrapper file + QString classInitDecl; + QTextStream s_classInitDecl(&classInitDecl); + QString classPythonDefines; + QTextStream s_classPythonDefines(&classPythonDefines); + + QSet<Include> includes; + QString globalFunctionImpl; + QTextStream s_globalFunctionImpl(&globalFunctionImpl); + QString globalFunctionDecl; + QTextStream s_globalFunctionDef(&globalFunctionDecl); + + Indentation indent(INDENT); + + const FunctionGroupMap &functionGroups = getFunctionGroups(); + for (FunctionGroupMapIt it = functionGroups.cbegin(), end = functionGroups.cend(); it != end; ++it) { + AbstractMetaFunctionList overloads; + for (AbstractMetaFunction *func : it.value()) { + if (!func->isModifiedRemoved()) { + overloads.append(func); + if (func->typeEntry()) + includes << func->typeEntry()->include(); + } + } + + if (overloads.isEmpty()) + continue; + + // Dummy context to satisfy the API. + GeneratorContext classContext; + writeMethodWrapper(s_globalFunctionImpl, overloads, classContext); + writeMethodDefinition(s_globalFunctionDef, overloads); + } + + //this is a temporary solution before new type revison implementation + //We need move QMetaObject register before QObject + Dependencies additionalDependencies; + const AbstractMetaClassList &allClasses = classes(); + if (AbstractMetaClass::findClass(allClasses, qObjectClassName()) != Q_NULLPTR + && AbstractMetaClass::findClass(allClasses, qMetaObjectClassName()) != Q_NULLPTR) { + Dependency dependency; + dependency.parent = qMetaObjectClassName(); + dependency.child = qObjectClassName(); + additionalDependencies.append(dependency); + } + const AbstractMetaClassList lst = classesTopologicalSorted(additionalDependencies); + + for (const AbstractMetaClass *cls : lst){ + if (!shouldGenerate(cls)) + continue; + + s_classInitDecl << "void init_" << cls->qualifiedCppName().replace(QLatin1String("::"), QLatin1String("_")) << "(PyObject* module);" << endl; + + QString defineStr = QLatin1String("init_") + cls->qualifiedCppName().replace(QLatin1String("::"), QLatin1String("_")); + + if (cls->enclosingClass() && (cls->enclosingClass()->typeEntry()->codeGeneration() != TypeEntry::GenerateForSubclass)) + defineStr += QLatin1Char('(') + cpythonTypeNameExt(cls->enclosingClass()->typeEntry()) + QLatin1String("->tp_dict);"); + else + defineStr += QLatin1String("(module);"); + s_classPythonDefines << INDENT << defineStr << endl; + } + + // Initialize smart pointer types. + const QVector<const AbstractMetaType *> &smartPtrs = instantiatedSmartPointers(); + for (const AbstractMetaType *metaType : smartPtrs) { + GeneratorContext context(0, metaType, true); + QString initFunctionName = getInitFunctionName(context); + s_classInitDecl << "void init_" << initFunctionName << "(PyObject* module);" << endl; + QString defineStr = QLatin1String("init_") + initFunctionName; + defineStr += QLatin1String("(module);"); + s_classPythonDefines << INDENT << defineStr << endl; + } + + QString moduleFileName(outputDirectory() + QLatin1Char('/') + subDirectoryForPackage(packageName())); + moduleFileName += QLatin1Char('/') + moduleName().toLower() + QLatin1String("_module_wrapper.cpp"); + + QFile file(moduleFileName); + verifyDirectoryFor(file); + if (!file.open(QFile::WriteOnly)) { + qCWarning(lcShiboken).noquote().nospace() + << "Error writing file: " << QDir::toNativeSeparators(moduleFileName); + return false; + } + + QTextStream s(&file); + + // write license comment + s << licenseComment() << endl; + + s << "#include <sbkpython.h>" << endl; + s << "#include <shiboken.h>" << endl; + s << "#include <algorithm>" << endl; + if (usePySideExtensions()) { + s << includeQDebug; + s << "#include <pyside.h>" << endl; + } + + s << "#include \"" << getModuleHeaderFileName() << '"' << endl << endl; + for (const Include &include : qAsConst(includes)) + s << include; + s << endl; + + // Global enums + AbstractMetaEnumList globalEnums = this->globalEnums(); + const AbstractMetaClassList &classList = classes(); + for (const AbstractMetaClass *metaClass : classList) { + const AbstractMetaClass* encClass = metaClass->enclosingClass(); + if (encClass && encClass->typeEntry()->codeGeneration() != TypeEntry::GenerateForSubclass) + continue; + lookForEnumsInClassesNotToBeGenerated(globalEnums, metaClass); + } + + TypeDatabase* typeDb = TypeDatabase::instance(); + TypeSystemTypeEntry* moduleEntry = reinterpret_cast<TypeSystemTypeEntry*>(typeDb->findType(packageName())); + + //Extra includes + s << endl << "// Extra includes" << endl; + QVector<Include> extraIncludes; + if (moduleEntry) + extraIncludes = moduleEntry->extraIncludes(); + for (AbstractMetaEnum *cppEnum : qAsConst(globalEnums)) + extraIncludes.append(cppEnum->typeEntry()->extraIncludes()); + qSort(extraIncludes.begin(), extraIncludes.end()); + for (const Include &inc : qAsConst(extraIncludes)) + s << inc; + s << endl; + + s << "// Current module's type array." << endl; + s << "PyTypeObject** " << cppApiVariableName() << ';' << endl; + + s << "// Current module's converter array." << endl; + s << "SbkConverter** " << convertersVariableName() << ';' << endl; + + CodeSnipList snips; + if (moduleEntry) + snips = moduleEntry->codeSnips(); + + // module inject-code native/beginning + if (!snips.isEmpty()) { + writeCodeSnips(s, snips, TypeSystem::CodeSnipPositionBeginning, TypeSystem::NativeCode); + s << endl; + } + + // cleanup staticMetaObject attribute + if (usePySideExtensions()) { + s << "void cleanTypesAttributes(void) {" << endl; + s << INDENT << "for (int i = 0, imax = SBK_" << moduleName() << "_IDX_COUNT; i < imax; i++) {" << endl; + { + Indentation indentation(INDENT); + s << INDENT << "PyObject *pyType = reinterpret_cast<PyObject*>(" << cppApiVariableName() << "[i]);" << endl; + s << INDENT << "if (pyType && PyObject_HasAttrString(pyType, \"staticMetaObject\"))"<< endl; + { + Indentation indentation(INDENT); + s << INDENT << "PyObject_SetAttrString(pyType, \"staticMetaObject\", Py_None);" << endl; + } + } + s << INDENT << "}" << endl; + s << "}" << endl; + } + + s << "// Global functions "; + s << "------------------------------------------------------------" << endl; + s << globalFunctionImpl << endl; + + s << "static PyMethodDef " << moduleName() << "_methods[] = {" << endl; + s << globalFunctionDecl; + s << INDENT << "{0} // Sentinel" << endl << "};" << endl << endl; + + s << "// Classes initialization functions "; + s << "------------------------------------------------------------" << endl; + s << classInitDecl << endl; + + if (!globalEnums.isEmpty()) { + QString converterImpl; + QTextStream convImpl(&converterImpl); + + s << "// Enum definitions "; + s << "------------------------------------------------------------" << endl; + for (const AbstractMetaEnum *cppEnum : qAsConst(globalEnums)) { + if (cppEnum->isAnonymous() || cppEnum->isPrivate()) + continue; + writeEnumConverterFunctions(s, cppEnum); + s << endl; + } + + if (!converterImpl.isEmpty()) { + s << "// Enum converters "; + s << "------------------------------------------------------------" << endl; + s << "namespace Shiboken" << endl << '{' << endl; + s << converterImpl << endl; + s << "} // namespace Shiboken" << endl << endl; + } + } + + const QStringList &requiredModules = typeDb->requiredTargetImports(); + if (!requiredModules.isEmpty()) + s << "// Required modules' type and converter arrays." << endl; + for (const QString &requiredModule : requiredModules) { + s << "PyTypeObject** " << cppApiVariableName(requiredModule) << ';' << endl; + s << "SbkConverter** " << convertersVariableName(requiredModule) << ';' << endl; + } + s << endl; + + s << "// Module initialization "; + s << "------------------------------------------------------------" << endl; + ExtendedConverterData extendedConverters = getExtendedConverters(); + if (!extendedConverters.isEmpty()) { + s << endl << "// Extended Converters." << endl << endl; + for (ExtendedConverterData::const_iterator it = extendedConverters.cbegin(), end = extendedConverters.cend(); it != end; ++it) { + const TypeEntry *externalType = it.key(); + s << "// Extended implicit conversions for " << externalType->qualifiedTargetLangName() << '.' << endl; + for (const AbstractMetaClass *sourceClass : it.value()) { + AbstractMetaType* sourceType = buildAbstractMetaTypeFromAbstractMetaClass(sourceClass); + AbstractMetaType* targetType = buildAbstractMetaTypeFromTypeEntry(externalType); + writePythonToCppConversionFunctions(s, sourceType, targetType); + } + } + } + + const QVector<const CustomConversion *> &typeConversions = getPrimitiveCustomConversions(); + if (!typeConversions.isEmpty()) { + s << endl << "// Primitive Type converters." << endl << endl; + for (const CustomConversion *conversion : typeConversions) { + s << "// C++ to Python conversion for type '" << conversion->ownerType()->qualifiedCppName() << "'." << endl; + writeCppToPythonFunction(s, conversion); + writeCustomConverterFunctions(s, conversion); + } + s << endl; + } + + const QVector<const AbstractMetaType *> &containers = instantiatedContainers(); + if (!containers.isEmpty()) { + s << "// Container Type converters." << endl << endl; + for (const AbstractMetaType *container : containers) { + s << "// C++ to Python conversion for type '" << container->cppSignature() << "'." << endl; + writeContainerConverterFunctions(s, container); + } + s << endl; + } + + s << "#if defined _WIN32 || defined __CYGWIN__" << endl; + s << " #define SBK_EXPORT_MODULE __declspec(dllexport)" << endl; + s << "#elif __GNUC__ >= 4" << endl; + s << " #define SBK_EXPORT_MODULE __attribute__ ((visibility(\"default\")))" << endl; + s << "#else" << endl; + s << " #define SBK_EXPORT_MODULE" << endl; + s << "#endif" << endl << endl; + + s << "#ifdef IS_PY3K" << endl; + s << "static struct PyModuleDef moduledef = {" << endl; + s << " /* m_base */ PyModuleDef_HEAD_INIT," << endl; + s << " /* m_name */ \"" << moduleName() << "\"," << endl; + s << " /* m_doc */ 0," << endl; + s << " /* m_size */ -1," << endl; + s << " /* m_methods */ " << moduleName() << "_methods," << endl; + s << " /* m_reload */ 0," << endl; + s << " /* m_traverse */ 0," << endl; + s << " /* m_clear */ 0," << endl; + s << " /* m_free */ 0" << endl; + s << "};" << endl << endl; + s << "#endif" << endl; + s << "SBK_MODULE_INIT_FUNCTION_BEGIN(" << moduleName() << ")" << endl; + + ErrorCode errorCode(QLatin1String("SBK_MODULE_INIT_ERROR")); + // module inject-code target/beginning + if (!snips.isEmpty()) { + writeCodeSnips(s, snips, TypeSystem::CodeSnipPositionBeginning, TypeSystem::TargetLangCode); + s << endl; + } + + for (const QString& requiredModule : requiredModules) { + s << INDENT << "{" << endl; + { + Indentation indentation(INDENT); + s << INDENT << "Shiboken::AutoDecRef requiredModule(Shiboken::Module::import(\"" << requiredModule << "\"));" << endl; + s << INDENT << "if (requiredModule.isNull())" << endl; + { + Indentation indentation(INDENT); + s << INDENT << "return SBK_MODULE_INIT_ERROR;" << endl; + } + s << INDENT << cppApiVariableName(requiredModule) << " = Shiboken::Module::getTypes(requiredModule);" << endl; + s << INDENT << convertersVariableName(requiredModule) << " = Shiboken::Module::getTypeConverters(requiredModule);" << endl; + } + s << INDENT << "}" << endl << endl; + } + + int maxTypeIndex = getMaxTypeIndex() + instantiatedSmartPointers().size(); + if (maxTypeIndex) { + s << INDENT << "// Create an array of wrapper types for the current module." << endl; + s << INDENT << "static PyTypeObject* cppApi[SBK_" << moduleName() << "_IDX_COUNT];" << endl; + s << INDENT << cppApiVariableName() << " = cppApi;" << endl << endl; + } + + s << INDENT << "// Create an array of primitive type converters for the current module." << endl; + s << INDENT << "static SbkConverter* sbkConverters[SBK_" << moduleName() << "_CONVERTERS_IDX_COUNT" << "];" << endl; + s << INDENT << convertersVariableName() << " = sbkConverters;" << endl << endl; + + s << "#ifdef IS_PY3K" << endl; + s << INDENT << "PyObject* module = Shiboken::Module::create(\"" << moduleName() << "\", &moduledef);" << endl; + s << "#else" << endl; + s << INDENT << "PyObject* module = Shiboken::Module::create(\"" << moduleName() << "\", "; + s << moduleName() << "_methods);" << endl; + s << "#endif" << endl << endl; + + //s << INDENT << "// Initialize converters for primitive types." << endl; + //s << INDENT << "initConverters();" << endl << endl; + + s << INDENT << "// Initialize classes in the type system" << endl; + s << classPythonDefines; + + if (!typeConversions.isEmpty()) { + s << endl; + for (const CustomConversion *conversion : typeConversions) { + writePrimitiveConverterInitialization(s, conversion); + s << endl; + } + } + + if (!containers.isEmpty()) { + s << endl; + for (const AbstractMetaType *container : containers) { + writeContainerConverterInitialization(s, container); + s << endl; + } + } + + if (!extendedConverters.isEmpty()) { + s << endl; + for (ExtendedConverterData::const_iterator it = extendedConverters.cbegin(), end = extendedConverters.cend(); it != end; ++it) { + writeExtendedConverterInitialization(s, it.key(), it.value()); + s << endl; + } + } + + writeEnumsInitialization(s, globalEnums); + + s << INDENT << "// Register primitive types converters." << endl; + const PrimitiveTypeEntryList &primitiveTypeList = primitiveTypes(); + for (const PrimitiveTypeEntry *pte : primitiveTypeList) { + if (!pte->generateCode() || !pte->isCppPrimitive()) + continue; + const TypeEntry *referencedType = pte->basicReferencedTypeEntry(); + if (!referencedType) + continue; + QString converter = converterObject(referencedType); + QStringList cppSignature = pte->qualifiedCppName().split(QLatin1String("::"), QString::SkipEmptyParts); + while (!cppSignature.isEmpty()) { + QString signature = cppSignature.join(QLatin1String("::")); + s << INDENT << "Shiboken::Conversions::registerConverterName(" << converter << ", \"" << signature << "\");" << endl; + cppSignature.removeFirst(); + } + } + // Register type resolver for all containers found in signals. + QSet<QByteArray> typeResolvers; + + for (AbstractMetaClass *metaClass : classList) { + if (!metaClass->isQObject() || !metaClass->typeEntry()->generateCode()) + continue; + const AbstractMetaFunctionList &functions = metaClass->functions(); + for (AbstractMetaFunction *func : functions) { + if (func->isSignal()) { + const AbstractMetaArgumentList &arguments = func->arguments(); + for (AbstractMetaArgument *arg : arguments) { + if (arg->type()->isContainer()) { + QString value = translateType(arg->type(), metaClass, ExcludeConst | ExcludeReference); + if (value.startsWith(QLatin1String("::"))) + value.remove(0, 2); + typeResolvers << QMetaObject::normalizedType(value.toUtf8().constData()); + } + } + } + } + } + + s << endl; + if (maxTypeIndex) + s << INDENT << "Shiboken::Module::registerTypes(module, " << cppApiVariableName() << ");" << endl; + s << INDENT << "Shiboken::Module::registerTypeConverters(module, " << convertersVariableName() << ");" << endl; + + s << endl << INDENT << "if (PyErr_Occurred()) {" << endl; + { + Indentation indentation(INDENT); + s << INDENT << "PyErr_Print();" << endl; + s << INDENT << "Py_FatalError(\"can't initialize module " << moduleName() << "\");" << endl; + } + s << INDENT << '}' << endl; + + // module inject-code target/end + if (!snips.isEmpty()) { + writeCodeSnips(s, snips, TypeSystem::CodeSnipPositionEnd, TypeSystem::TargetLangCode); + s << endl; + } + + // module inject-code native/end + if (!snips.isEmpty()) { + writeCodeSnips(s, snips, TypeSystem::CodeSnipPositionEnd, TypeSystem::NativeCode); + s << endl; + } + + if (usePySideExtensions()) { + for (AbstractMetaEnum *metaEnum : qAsConst(globalEnums)) + if (!metaEnum->isAnonymous()) { + s << INDENT << "qRegisterMetaType< ::" << metaEnum->typeEntry()->qualifiedCppName() << " >(\"" << metaEnum->name() << "\");" << endl; + } + + // cleanup staticMetaObject attribute + s << INDENT << "PySide::registerCleanupFunction(cleanTypesAttributes);" << endl; + } + + s << "SBK_MODULE_INIT_FUNCTION_END" << endl; + + return true; +} + +static ArgumentOwner getArgumentOwner(const AbstractMetaFunction* func, int argIndex) +{ + ArgumentOwner argOwner = func->argumentOwner(func->ownerClass(), argIndex); + if (argOwner.index == ArgumentOwner::InvalidIndex) + argOwner = func->argumentOwner(func->declaringClass(), argIndex); + return argOwner; +} + +bool CppGenerator::writeParentChildManagement(QTextStream& s, const AbstractMetaFunction* func, int argIndex, bool useHeuristicPolicy) +{ + const int numArgs = func->arguments().count(); + bool ctorHeuristicEnabled = func->isConstructor() && useCtorHeuristic() && useHeuristicPolicy; + + bool usePyArgs = pythonFunctionWrapperUsesListOfArguments(OverloadData(getFunctionGroups(func->implementingClass())[func->name()], this)); + + ArgumentOwner argOwner = getArgumentOwner(func, argIndex); + ArgumentOwner::Action action = argOwner.action; + int parentIndex = argOwner.index; + int childIndex = argIndex; + if (ctorHeuristicEnabled && argIndex > 0 && numArgs) { + AbstractMetaArgument* arg = func->arguments().at(argIndex-1); + if (arg->name() == QLatin1String("parent") && isObjectType(arg->type())) { + action = ArgumentOwner::Add; + parentIndex = argIndex; + childIndex = -1; + } + } + + QString parentVariable; + QString childVariable; + if (action != ArgumentOwner::Invalid) { + if (!usePyArgs && argIndex > 1) + qCWarning(lcShiboken).noquote().nospace() + << "Argument index for parent tag out of bounds: " << func->signature(); + + if (action == ArgumentOwner::Remove) { + parentVariable = QLatin1String("Py_None"); + } else { + if (parentIndex == 0) { + parentVariable = QLatin1String(PYTHON_RETURN_VAR); + } else if (parentIndex == -1) { + parentVariable = QLatin1String(PYTHON_SELF_VAR); + } else { + parentVariable = usePyArgs + ? QString::fromLatin1(PYTHON_ARGS "[%1]").arg(parentIndex - 1) + : QLatin1String(PYTHON_ARG); + } + } + + if (childIndex == 0) { + childVariable = QLatin1String(PYTHON_RETURN_VAR); + } else if (childIndex == -1) { + childVariable = QLatin1String(PYTHON_SELF_VAR); + } else { + childVariable = usePyArgs + ? QString::fromLatin1(PYTHON_ARGS "[%1]").arg(childIndex - 1) + : QLatin1String(PYTHON_ARG); + } + + s << INDENT << "Shiboken::Object::setParent(" << parentVariable << ", " << childVariable << ");\n"; + return true; + } + + return false; +} + +void CppGenerator::writeParentChildManagement(QTextStream& s, const AbstractMetaFunction* func, bool useHeuristicForReturn) +{ + const int numArgs = func->arguments().count(); + + // -1 = return value + // 0 = self + // 1..n = func. args. + for (int i = -1; i <= numArgs; ++i) + writeParentChildManagement(s, func, i, useHeuristicForReturn); + + if (useHeuristicForReturn) + writeReturnValueHeuristics(s, func); +} + +void CppGenerator::writeReturnValueHeuristics(QTextStream& s, const AbstractMetaFunction* func, const QString& self) +{ + AbstractMetaType *type = func->type(); + if (!useReturnValueHeuristic() + || !func->ownerClass() + || !type + || func->isStatic() + || func->isConstructor() + || !func->typeReplaced(0).isEmpty()) { + return; + } + + ArgumentOwner argOwner = getArgumentOwner(func, ArgumentOwner::ReturnIndex); + if (argOwner.action == ArgumentOwner::Invalid || argOwner.index != ArgumentOwner::ThisIndex) { + if (isPointerToWrapperType(type)) + s << INDENT << "Shiboken::Object::setParent(" << self << ", " PYTHON_RETURN_VAR ");" << endl; + } +} + +void CppGenerator::writeHashFunction(QTextStream &s, GeneratorContext &context) +{ + const AbstractMetaClass *metaClass = context.metaClass(); + s << "static Py_hash_t " << cpythonBaseName(metaClass) << "_HashFunc(PyObject* self) {" << endl; + writeCppSelfDefinition(s, context); + s << INDENT << "return " << metaClass->typeEntry()->hashFunction() << '('; + s << (isObjectType(metaClass) ? "" : "*") << CPP_SELF_VAR << ");" << endl; + s << '}' << endl << endl; +} + +void CppGenerator::writeStdListWrapperMethods(QTextStream &s, GeneratorContext &context) +{ + const AbstractMetaClass *metaClass = context.metaClass(); + ErrorCode errorCode(0); + + // __len__ + s << "Py_ssize_t " << cpythonBaseName(metaClass->typeEntry()) << "__len__(PyObject* " PYTHON_SELF_VAR ")" << endl; + s << '{' << endl; + writeCppSelfDefinition(s, context); + s << INDENT << "return " CPP_SELF_VAR "->size();" << endl; + s << '}' << endl; + + // __getitem__ + s << "PyObject* " << cpythonBaseName(metaClass->typeEntry()) << "__getitem__(PyObject* " PYTHON_SELF_VAR ", Py_ssize_t _i)" << endl; + s << '{' << endl; + writeCppSelfDefinition(s, context); + writeIndexError(s, QLatin1String("index out of bounds")); + + s << INDENT << metaClass->qualifiedCppName() << "::iterator _item = " CPP_SELF_VAR "->begin();" << endl; + s << INDENT << "for (Py_ssize_t pos = 0; pos < _i; pos++) _item++;" << endl; + + const AbstractMetaType* itemType = metaClass->templateBaseClassInstantiations().first(); + + s << INDENT << "return "; + writeToPythonConversion(s, itemType, metaClass, QLatin1String("*_item")); + s << ';' << endl; + s << '}' << endl; + + // __setitem__ + ErrorCode errorCode2(-1); + s << "int " << cpythonBaseName(metaClass->typeEntry()) << "__setitem__(PyObject* " PYTHON_SELF_VAR ", Py_ssize_t _i, PyObject* pyArg)" << endl; + s << '{' << endl; + writeCppSelfDefinition(s, context); + writeIndexError(s, QLatin1String("list assignment index out of range")); + + s << INDENT << "PythonToCppFunc " << PYTHON_TO_CPP_VAR << ';' << endl; + s << INDENT << "if (!"; + writeTypeCheck(s, itemType, QLatin1String("pyArg"), isNumber(itemType->typeEntry())); + s << ") {" << endl; + { + Indentation indent(INDENT); + s << INDENT << "PyErr_SetString(PyExc_TypeError, \"attributed value with wrong type, '"; + s << itemType->name() << "' or other convertible type expected\");" << endl; + s << INDENT << "return -1;" << endl; + } + s << INDENT << '}' << endl; + writeArgumentConversion(s, itemType, QLatin1String("cppValue"), QLatin1String("pyArg"), metaClass); + + s << INDENT << metaClass->qualifiedCppName() << "::iterator _item = " CPP_SELF_VAR "->begin();" << endl; + s << INDENT << "for (Py_ssize_t pos = 0; pos < _i; pos++) _item++;" << endl; + s << INDENT << "*_item = cppValue;" << endl; + s << INDENT << "return 0;" << endl; + s << '}' << endl; +} +void CppGenerator::writeIndexError(QTextStream& s, const QString& errorMsg) +{ + s << INDENT << "if (_i < 0 || _i >= (Py_ssize_t) " CPP_SELF_VAR "->size()) {" << endl; + { + Indentation indent(INDENT); + s << INDENT << "PyErr_SetString(PyExc_IndexError, \"" << errorMsg << "\");" << endl; + s << INDENT << "return " << m_currentErrorCode << ';' << endl; + } + s << INDENT << '}' << endl; +} + +QString CppGenerator::writeReprFunction(QTextStream &s, GeneratorContext &context) +{ + const AbstractMetaClass *metaClass = context.metaClass(); + QString funcName = cpythonBaseName(metaClass) + QLatin1String("__repr__"); + s << "extern \"C\"" << endl; + s << '{' << endl; + s << "static PyObject* " << funcName << "(PyObject* self)" << endl; + s << '{' << endl; + writeCppSelfDefinition(s, context); + s << INDENT << "QBuffer buffer;" << endl; + s << INDENT << "buffer.open(QBuffer::ReadWrite);" << endl; + s << INDENT << "QDebug dbg(&buffer);" << endl; + s << INDENT << "dbg << " << (metaClass->typeEntry()->isValue() ? "*" : "") << CPP_SELF_VAR ";" << endl; + s << INDENT << "buffer.close();" << endl; + s << INDENT << "QByteArray str = buffer.data();" << endl; + s << INDENT << "int idx = str.indexOf('(');" << endl; + s << INDENT << "if (idx >= 0)" << endl; + { + Indentation indent(INDENT); + s << INDENT << "str.replace(0, idx, Py_TYPE(self)->tp_name);" << endl; + } + s << INDENT << "PyObject* mod = PyDict_GetItemString(Py_TYPE(self)->tp_dict, \"__module__\");" << endl; + s << INDENT << "if (mod)" << endl; + { + Indentation indent(INDENT); + s << INDENT << "return Shiboken::String::fromFormat(\"<%s.%s at %p>\", Shiboken::String::toCString(mod), str.constData(), self);" << endl; + } + s << INDENT << "else" << endl; + { + Indentation indent(INDENT); + s << INDENT << "return Shiboken::String::fromFormat(\"<%s at %p>\", str.constData(), self);" << endl; + } + s << '}' << endl; + s << "} // extern C" << endl << endl;; + return funcName; +} diff --git a/sources/shiboken2/generator/shiboken2/cppgenerator.h b/sources/shiboken2/generator/shiboken2/cppgenerator.h new file mode 100644 index 000000000..c3ca48307 --- /dev/null +++ b/sources/shiboken2/generator/shiboken2/cppgenerator.h @@ -0,0 +1,370 @@ +/**************************************************************************** +** +** Copyright (C) 2016 The Qt Company Ltd. +** Contact: https://www.qt.io/licensing/ +** +** This file is part of PySide2. +** +** $QT_BEGIN_LICENSE:GPL-EXCEPT$ +** Commercial License Usage +** Licensees holding valid commercial Qt licenses may use this file in +** accordance with the commercial license agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and The Qt Company. For licensing terms +** and conditions see https://www.qt.io/terms-conditions. For further +** information use the contact form at https://www.qt.io/contact-us. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 3 as published by the Free Software +** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT +** included in the packaging of this file. Please review the following +** information to ensure the GNU General Public License requirements will +** be met: https://www.gnu.org/licenses/gpl-3.0.html. +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef CPPGENERATOR_H +#define CPPGENERATOR_H + +#include "shibokengenerator.h" + +/** + * The CppGenerator generate the implementations of C++ bindings classes. + */ +class CppGenerator : public ShibokenGenerator +{ +public: + CppGenerator(); +protected: + QString fileNamePrefix() const override; + QString fileNameForContext(GeneratorContext &context) const override; + QVector<AbstractMetaFunctionList> filterGroupedOperatorFunctions(const AbstractMetaClass* metaClass, + uint query); + void generateClass(QTextStream& s, GeneratorContext &classContext) override; + bool finishGeneration() override; + +private: + void writeConstructorNative(QTextStream& s, const AbstractMetaFunction* func); + void writeDestructorNative(QTextStream& s, const AbstractMetaClass* metaClass); + + QString getVirtualFunctionReturnTypeName(const AbstractMetaFunction* func); + void writeVirtualMethodNative(QTextStream& s, const AbstractMetaFunction* func); + + void writeMetaObjectMethod(QTextStream& s, const AbstractMetaClass* metaClass); + void writeMetaCast(QTextStream& s, const AbstractMetaClass* metaClass); + + void writeEnumConverterFunctions(QTextStream& s, const TypeEntry* enumType); + void writeEnumConverterFunctions(QTextStream& s, const AbstractMetaEnum* metaEnum); + void writeConverterFunctions(QTextStream &s, const AbstractMetaClass *metaClass, + GeneratorContext &classContext); + void writeCustomConverterFunctions(QTextStream& s, const CustomConversion* customConversion); + void writeConverterRegister(QTextStream &s, const AbstractMetaClass *metaClass, + GeneratorContext &classContext); + void writeCustomConverterRegister(QTextStream& s, const CustomConversion* customConversion, const QString& converterVar); + void writeContainerConverterRegister(QTextStream& s, const AbstractMetaType* container, const QString& converterVar); + + void writeContainerConverterFunctions(QTextStream& s, const AbstractMetaType* containerType); + + void writeMethodWrapperPreamble(QTextStream &s, OverloadData &overloadData, + GeneratorContext &context); + void writeConstructorWrapper(QTextStream &s, const AbstractMetaFunctionList overloads, GeneratorContext &classContext); + void writeDestructorWrapper(QTextStream& s, const AbstractMetaClass* metaClass); + void writeMethodWrapper(QTextStream &s, const AbstractMetaFunctionList overloads, + GeneratorContext &classContext); + void writeArgumentsInitializer(QTextStream& s, OverloadData& overloadData); + void writeCppSelfDefinition(QTextStream &s, + const AbstractMetaFunction *func, + GeneratorContext &context, + bool hasStaticOverload = false); + void writeCppSelfDefinition(QTextStream &s, + GeneratorContext &context, + bool hasStaticOverload = false, + bool cppSelfAsReference = false); + + void writeErrorSection(QTextStream& s, OverloadData& overloadData); + void writeFunctionReturnErrorCheckSection(QTextStream& s, bool hasReturnValue = true); + + /// Writes the check section for the validity of wrapped C++ objects. + void writeInvalidPyObjectCheck(QTextStream& s, const QString& pyObj); + + void writeTypeCheck(QTextStream& s, const AbstractMetaType* argType, QString argumentName, bool isNumber = false, QString customType = QString(), bool rejectNull = false); + void writeTypeCheck(QTextStream& s, const OverloadData* overloadData, QString argumentName); + + void writeTypeDiscoveryFunction(QTextStream& s, const AbstractMetaClass* metaClass); + + void writeSetattroFunction(QTextStream &s, GeneratorContext &context); + void writeGetattroFunction(QTextStream &s, GeneratorContext &context); + QString writeSmartPointerGetterCast(); + + /** + * Writes Python to C++ conversions for arguments on Python wrappers. + * If implicit conversions, and thus new object allocation, are needed, + * code to deallocate a possible new instance is also generated. + * \param s text stream to write + * \param argType a pointer to the argument type to be converted + * \param argName C++ argument name + * \param pyArgName Python argument name + * \param context the current meta class + * \param defaultValue an optional default value to be used instead of the conversion result + * \param castArgumentAsUnused if true the converted argument is cast as unused to avoid compiler warnings + */ + void writeArgumentConversion(QTextStream& s, const AbstractMetaType* argType, + const QString& argName, const QString& pyArgName, + const AbstractMetaClass* context = 0, + const QString& defaultValue = QString(), + bool castArgumentAsUnused = false); + + /** + * Returns the AbstractMetaType for a function argument. + * If the argument type was modified in the type system, this method will + * try to build a new type based on the type name defined in the type system. + * \param func The function which owns the argument. + * \param argPos Argument position in the function signature. + * Note that the position 0 represents the return value, and the function + * parameters start counting on 1. + * \param newType It is set to true if the type returned is a new object that must be deallocated. + * \return The type of the argument indicated by \p argPos. + */ + const AbstractMetaType* getArgumentType(const AbstractMetaFunction* func, int argPos); + + void writePythonToCppTypeConversion(QTextStream& s, + const AbstractMetaType* type, + const QString& pyIn, + const QString& cppOut, + const AbstractMetaClass* context = 0, + const QString& defaultValue = QString()); + + /// Writes the conversion rule for arguments of regular and virtual methods. + void writeConversionRule(QTextStream& s, const AbstractMetaFunction* func, TypeSystem::Language language); + /// Writes the conversion rule for the return value of a method. + void writeConversionRule(QTextStream& s, const AbstractMetaFunction* func, TypeSystem::Language language, const QString& outputVar); + + /** + * Set the Python method wrapper return value variable to Py_None if + * there are return types different from void in any of the other overloads + * for the function passed as parameter. + * \param s text stream to write + * \param func a pointer to the function that will possibly return Py_None + * \param thereIsReturnValue indicates if the return type of any of the other overloads + * for this function is different from 'void' + */ + void writeNoneReturn(QTextStream& s, const AbstractMetaFunction* func, bool thereIsReturnValue); + + /** + * Writes the Python function wrapper overload decisor that selects which C++ + * method/function to call with the received Python arguments. + * \param s text stream to write + * \param overloadData the overload data describing all the possible overloads for the function/method + */ + void writeOverloadedFunctionDecisor(QTextStream& s, const OverloadData& overloadData); + /// Recursive auxiliar method to the other writeOverloadedFunctionDecisor. + void writeOverloadedFunctionDecisorEngine(QTextStream& s, const OverloadData* parentOverloadData); + + /// Writes calls to all the possible method/function overloads. + void writeFunctionCalls(QTextStream &s, + const OverloadData &overloadData, + GeneratorContext &context); + + /// Writes the call to a single function usually from a collection of overloads. + void writeSingleFunctionCall(QTextStream &s, + const OverloadData &overloadData, + const AbstractMetaFunction *func, + GeneratorContext &context); + + /// Returns the name of a C++ to Python conversion function. + static QString cppToPythonFunctionName(const QString& sourceTypeName, QString targetTypeName = QString()); + + /// Returns the name of a Python to C++ conversion function. + static QString pythonToCppFunctionName(const QString& sourceTypeName, const QString& targetTypeName); + static QString pythonToCppFunctionName(const AbstractMetaType* sourceType, const AbstractMetaType* targetType); + static QString pythonToCppFunctionName(const CustomConversion::TargetToNativeConversion* toNative, const TypeEntry* targetType); + + /// Returns the name of a Python to C++ convertible check function. + static QString convertibleToCppFunctionName(const QString& sourceTypeName, const QString& targetTypeName); + static QString convertibleToCppFunctionName(const AbstractMetaType* sourceType, const AbstractMetaType* targetType); + static QString convertibleToCppFunctionName(const CustomConversion::TargetToNativeConversion* toNative, const TypeEntry* targetType); + + /// Writes a C++ to Python conversion function. + void writeCppToPythonFunction(QTextStream& s, const QString& code, const QString& sourceTypeName, QString targetTypeName = QString()); + void writeCppToPythonFunction(QTextStream& s, const CustomConversion* customConversion); + void writeCppToPythonFunction(QTextStream& s, const AbstractMetaType* containerType); + + /// Writes a Python to C++ conversion function. + void writePythonToCppFunction(QTextStream& s, const QString& code, const QString& sourceTypeName, const QString& targetTypeName); + + /// Writes a Python to C++ convertible check function. + void writeIsPythonConvertibleToCppFunction(QTextStream& s, + const QString& sourceTypeName, + const QString& targetTypeName, + const QString& condition, + QString pythonToCppFuncName = QString(), + bool acceptNoneAsCppNull = false); + + /// Writes a pair of Python to C++ conversion and check functions. + void writePythonToCppConversionFunctions(QTextStream& s, + const AbstractMetaType* sourceType, + const AbstractMetaType* targetType, + QString typeCheck = QString(), + QString conversion = QString(), + QString preConversion = QString()); + /// Writes a pair of Python to C++ conversion and check functions for implicit conversions. + void writePythonToCppConversionFunctions(QTextStream& s, + const CustomConversion::TargetToNativeConversion* toNative, + const TypeEntry* targetType); + + /// Writes a pair of Python to C++ conversion and check functions for instantiated container types. + void writePythonToCppConversionFunctions(QTextStream& s, const AbstractMetaType* containerType); + + void writeAddPythonToCppConversion(QTextStream& s, const QString& converterVar, const QString& pythonToCppFunc, const QString& isConvertibleFunc); + + void writeNamedArgumentResolution(QTextStream& s, const AbstractMetaFunction* func, bool usePyArgs); + + /// Returns a string containing the name of an argument for the given function and argument index. + QString argumentNameFromIndex(const AbstractMetaFunction* func, int argIndex, const AbstractMetaClass** wrappedClass); + void writeMethodCall(QTextStream &s, const AbstractMetaFunction *func, + GeneratorContext &context, int maxArgs = 0); + + QString getInitFunctionName(GeneratorContext &context) const; + + void writeClassRegister(QTextStream &s, + const AbstractMetaClass *metaClass, + GeneratorContext &classContext); + void writeClassDefinition(QTextStream &s, + const AbstractMetaClass *metaClass, + GeneratorContext &classContext); + void writeMethodDefinitionEntry(QTextStream& s, const AbstractMetaFunctionList overloads); + void writeMethodDefinition(QTextStream& s, const AbstractMetaFunctionList overloads); + + /// Writes the implementation of all methods part of python sequence protocol + void writeSequenceMethods(QTextStream &s, + const AbstractMetaClass *metaClass, + GeneratorContext &context); + void writeTypeAsSequenceDefinition(QTextStream& s, const AbstractMetaClass* metaClass); + + /// Writes the PyMappingMethods structure for types that supports the python mapping protocol. + void writeTypeAsMappingDefinition(QTextStream& s, const AbstractMetaClass* metaClass); + void writeMappingMethods(QTextStream &s, + const AbstractMetaClass *metaClass, + GeneratorContext &context); + + void writeTypeAsNumberDefinition(QTextStream& s, const AbstractMetaClass* metaClass); + + void writeTpTraverseFunction(QTextStream& s, const AbstractMetaClass* metaClass); + void writeTpClearFunction(QTextStream& s, const AbstractMetaClass* metaClass); + + void writeCopyFunction(QTextStream &s, GeneratorContext &context); + + void writeGetterFunction(QTextStream &s, + const AbstractMetaField *metaField, + GeneratorContext &context); + void writeSetterFunction(QTextStream &s, + const AbstractMetaField *metaField, + GeneratorContext &context); + + void writeRichCompareFunction(QTextStream &s, GeneratorContext &context); + void writeToPythonFunction(QTextStream& s, const AbstractMetaClass* metaClass); + + void writeEnumsInitialization(QTextStream& s, AbstractMetaEnumList& enums); + void writeEnumInitialization(QTextStream& s, const AbstractMetaEnum* metaEnum); + + void writeSignalInitialization(QTextStream& s, const AbstractMetaClass* metaClass); + + void writeFlagsMethods(QTextStream& s, const AbstractMetaEnum* cppEnum); + void writeFlagsToLong(QTextStream& s, const AbstractMetaEnum* cppEnum); + void writeFlagsNonZero(QTextStream& s, const AbstractMetaEnum* cppEnum); + void writeFlagsNumberMethodsDefinition(QTextStream& s, const AbstractMetaEnum* cppEnum); + void writeFlagsBinaryOperator(QTextStream& s, const AbstractMetaEnum* cppEnum, + QString pyOpName, QString cppOpName); + void writeFlagsUnaryOperator(QTextStream& s, const AbstractMetaEnum* cppEnum, + QString pyOpName, QString cppOpName, bool boolResult = false); + + /// Writes the function that registers the multiple inheritance information for the classes that need it. + void writeMultipleInheritanceInitializerFunction(QTextStream& s, const AbstractMetaClass* metaClass); + /// Writes the implementation of special cast functions, used when we need to cast a class with multiple inheritance. + void writeSpecialCastFunction(QTextStream& s, const AbstractMetaClass* metaClass); + + void writePrimitiveConverterInitialization(QTextStream& s, const CustomConversion* customConversion); + void writeEnumConverterInitialization(QTextStream& s, const TypeEntry* enumType); + void writeEnumConverterInitialization(QTextStream& s, const AbstractMetaEnum* metaEnum); + void writeContainerConverterInitialization(QTextStream& s, const AbstractMetaType* type); + void writeExtendedConverterInitialization(QTextStream& s, const TypeEntry* externalType, const QVector<const AbstractMetaClass*>& conversions); + + void writeParentChildManagement(QTextStream& s, const AbstractMetaFunction* func, bool userHeuristicForReturn); + bool writeParentChildManagement(QTextStream& s, const AbstractMetaFunction* func, int argIndex, bool userHeuristicPolicy); + void writeReturnValueHeuristics(QTextStream& s, const AbstractMetaFunction* func, const QString& self = QLatin1String(PYTHON_SELF_VAR)); + void writeInitQtMetaTypeFunctionBody(QTextStream &s, GeneratorContext &context) const; + + /** + * Returns the multiple inheritance initializer function for the given class. + * \param metaClass the class for whom the function name must be generated. + * \return name of the multiple inheritance information initializer function or + * an empty string if there is no multiple inheritance in its ancestry. + */ + QString multipleInheritanceInitializerFunctionName(const AbstractMetaClass* metaClass); + + /// Returns a list of all classes to which the given class could be cast. + QStringList getAncestorMultipleInheritance(const AbstractMetaClass* metaClass); + + /// Returns true if the given class supports the python number protocol + bool supportsNumberProtocol(const AbstractMetaClass* metaClass); + + /// Returns true if the given class supports the python sequence protocol + bool supportsSequenceProtocol(const AbstractMetaClass* metaClass); + + /// Returns true if the given class supports the python mapping protocol + bool supportsMappingProtocol(const AbstractMetaClass* metaClass); + + /// Returns true if generator should produce getters and setters for the given class. + bool shouldGenerateGetSetList(const AbstractMetaClass* metaClass); + + void writeHashFunction(QTextStream &s, GeneratorContext &context); + + /// Write default implementations for sequence protocol + void writeStdListWrapperMethods(QTextStream &s, GeneratorContext &context); + /// Helper function for writeStdListWrapperMethods. + void writeIndexError(QTextStream& s, const QString& errorMsg); + + QString writeReprFunction(QTextStream &s, GeneratorContext &context); + + bool hasBoolCast(const AbstractMetaClass* metaClass) const; + + // Number protocol structure members names. + static QHash<QString, QString> m_nbFuncs; + + // Maps special function names to function parameters and return types + // used by CPython API in the sequence protocol. + QHash<QString, QPair<QString, QString> > m_sequenceProtocol; + // Sequence protocol structure members names. + static QHash<QString, QString> m_sqFuncs; + + // Maps special function names to function parameters and return types + // used by CPython API in the mapping protocol. + QHash<QString, QPair<QString, QString> > m_mappingProtocol; + // Mapping protocol structure members names. + static QHash<QString, QString> m_mpFuncs; + + static QString m_currentErrorCode; + + /// Helper class to set and restore the current error code. + class ErrorCode { + public: + explicit ErrorCode(QString errorCode) { + m_savedErrorCode = CppGenerator::m_currentErrorCode; + CppGenerator::m_currentErrorCode = errorCode; + } + explicit ErrorCode(int errorCode) { + m_savedErrorCode = CppGenerator::m_currentErrorCode; + CppGenerator::m_currentErrorCode = QString::number(errorCode); + } + ~ErrorCode() { + CppGenerator::m_currentErrorCode = m_savedErrorCode; + } + private: + QString m_savedErrorCode; + }; +}; + +#endif // CPPGENERATOR_H diff --git a/sources/shiboken2/generator/shiboken2/headergenerator.cpp b/sources/shiboken2/generator/shiboken2/headergenerator.cpp new file mode 100644 index 000000000..6b8185dc9 --- /dev/null +++ b/sources/shiboken2/generator/shiboken2/headergenerator.cpp @@ -0,0 +1,569 @@ +/**************************************************************************** +** +** Copyright (C) 2016 The Qt Company Ltd. +** Contact: https://www.qt.io/licensing/ +** +** This file is part of PySide2. +** +** $QT_BEGIN_LICENSE:GPL-EXCEPT$ +** Commercial License Usage +** Licensees holding valid commercial Qt licenses may use this file in +** accordance with the commercial license agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and The Qt Company. For licensing terms +** and conditions see https://www.qt.io/terms-conditions. For further +** information use the contact form at https://www.qt.io/contact-us. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 3 as published by the Free Software +** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT +** included in the packaging of this file. Please review the following +** information to ensure the GNU General Public License requirements will +** be met: https://www.gnu.org/licenses/gpl-3.0.html. +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "headergenerator.h" +#include <abstractmetalang.h> +#include <typedatabase.h> +#include <reporthandler.h> +#include <fileout.h> + +#include <QtCore/QDir> +#include <QtCore/QTextStream> +#include <QtCore/QVariant> +#include <QtCore/QDebug> + +QString HeaderGenerator::fileNamePrefix() const +{ + return QLatin1String("_wrapper.h"); +} + +QString HeaderGenerator::fileNameForContext(GeneratorContext &context) const +{ + const AbstractMetaClass *metaClass = context.metaClass(); + if (!context.forSmartPointer()) { + QString fileNameBase = metaClass->qualifiedCppName().toLower(); + fileNameBase.replace(QLatin1String("::"), QLatin1String("_")); + return fileNameBase + fileNamePrefix(); + } else { + const AbstractMetaType *smartPointerType = context.preciseType(); + QString fileNameBase = getFileNameBaseForSmartPointer(smartPointerType, metaClass); + return fileNameBase + fileNamePrefix(); + } +} + +void HeaderGenerator::writeCopyCtor(QTextStream& s, const AbstractMetaClass* metaClass) const +{ + s << INDENT << wrapperName(metaClass) << "(const " << metaClass->qualifiedCppName() << "& self)"; + s << " : " << metaClass->qualifiedCppName() << "(self)" << endl; + s << INDENT << "{" << endl; + s << INDENT << "}" << endl << endl; +} + +void HeaderGenerator::writeProtectedFieldAccessors(QTextStream& s, const AbstractMetaField* field) const +{ + AbstractMetaType *metaType = field->type(); + QString fieldType = metaType->cppSignature(); + QString fieldName = field->enclosingClass()->qualifiedCppName() + QLatin1String("::") + field->name(); + + // Force use of pointer to return internal variable memory + bool useReference = (!metaType->isConstant() && + !metaType->isEnum() && + !metaType->isPrimitive() && + metaType->indirections() == 0); + + + // Get function + s << INDENT << "inline " << fieldType + << (useReference ? '*' : ' ') + << ' ' << protectedFieldGetterName(field) << "()" + << " { return " + << (useReference ? '&' : ' ') << "this->" << fieldName << "; }" << endl; + + // Set function + s << INDENT << "inline void " << protectedFieldSetterName(field) << '(' << fieldType << " value)" + << " { " << fieldName << " = value; }" << endl; +} + +void HeaderGenerator::generateClass(QTextStream &s, GeneratorContext &classContext) +{ + AbstractMetaClass *metaClass = classContext.metaClass(); + if (ReportHandler::isDebug(ReportHandler::SparseDebug)) + qCDebug(lcShiboken) << "Generating header for " << metaClass->fullName(); + m_inheritedOverloads.clear(); + Indentation indent(INDENT); + + // write license comment + s << licenseComment(); + + QString wrapperName; + if (!classContext.forSmartPointer()) { + wrapperName = HeaderGenerator::wrapperName(metaClass); + } else { + wrapperName = HeaderGenerator::wrapperName(classContext.preciseType()); + } + QString headerGuard = getFilteredCppSignatureString(wrapperName).toUpper(); + + // Header + s << "#ifndef SBK_" << headerGuard << "_H" << endl; + s << "#define SBK_" << headerGuard << "_H" << endl<< endl; + + if (!avoidProtectedHack()) + s << "#define protected public" << endl << endl; + + s << "#include <shiboken.h>" << endl << endl; + + //Includes + s << metaClass->typeEntry()->include() << endl; + + if (shouldGenerateCppWrapper(metaClass)) { + + if (usePySideExtensions() && metaClass->isQObject()) + s << "namespace PySide { class DynamicQMetaObject; }\n\n"; + + // Class + s << "class " << wrapperName; + s << " : public " << metaClass->qualifiedCppName(); + + s << endl << '{' << endl << "public:" << endl; + + bool hasVirtualFunction = false; + const AbstractMetaFunctionList &funcs = filterFunctions(metaClass); + for (AbstractMetaFunction *func : funcs) { + if (func->isVirtual()) + hasVirtualFunction = true; + writeFunction(s, func); + } + + if (avoidProtectedHack() && metaClass->hasProtectedFields()) { + const AbstractMetaFieldList &fields = metaClass->fields(); + for (AbstractMetaField *field : fields) { + if (!field->isProtected()) + continue; + writeProtectedFieldAccessors(s, field); + } + } + + //destructor + // PYSIDE-504: When C++ 11 is used, then the destructor must always be written. + // See generator.h for further reference. + if (!avoidProtectedHack() || !metaClass->hasPrivateDestructor() || alwaysGenerateDestructor) { + s << INDENT; + if (avoidProtectedHack() && metaClass->hasPrivateDestructor()) + s << "// C++11: need to declare (unimplemented) destructor because " + "the base class destructor is private." << endl; + if (metaClass->hasVirtualDestructor() || hasVirtualFunction) + s << "virtual "; + s << '~' << wrapperName << "();" << endl; + } + + writeCodeSnips(s, metaClass->typeEntry()->codeSnips(), TypeSystem::CodeSnipPositionDeclaration, TypeSystem::NativeCode); + + if ((!avoidProtectedHack() || !metaClass->hasPrivateDestructor()) + && usePySideExtensions() && metaClass->isQObject()) { + s << "public:\n"; + s << INDENT << "virtual int qt_metacall(QMetaObject::Call call, int id, void** args);" << endl; + s << INDENT << "virtual void* qt_metacast(const char* _clname);" << endl; + } + + if (m_inheritedOverloads.size()) { + s << INDENT << "// Inherited overloads, because the using keyword sux" << endl; + writeInheritedOverloads(s); + } + + if (usePySideExtensions()) + s << INDENT << "static void pysideInitQtMetaTypes();" << endl; + + s << "};" << endl << endl; + } + + s << "#endif // SBK_" << headerGuard << "_H" << endl << endl; +} + +void HeaderGenerator::writeFunction(QTextStream& s, const AbstractMetaFunction* func) +{ + + // do not write copy ctors here. + if (!func->isPrivate() && func->functionType() == AbstractMetaFunction::CopyConstructorFunction) { + writeCopyCtor(s, func->ownerClass()); + return; + } + if (func->isUserAdded()) + return; + + if (avoidProtectedHack() && func->isProtected() && !func->isConstructor() && !func->isOperatorOverload()) { + s << INDENT << "inline " << (func->isStatic() ? "static " : ""); + s << functionSignature(func, QString(), QLatin1String("_protected"), Generator::EnumAsInts|Generator::OriginalTypeDescription) + << " { "; + s << (func->type() ? "return " : ""); + if (!func->isAbstract()) + s << func->ownerClass()->qualifiedCppName() << "::"; + s << func->originalName() << '('; + QStringList args; + const AbstractMetaArgumentList &arguments = func->arguments(); + for (const AbstractMetaArgument *arg : arguments) { + QString argName = arg->name(); + const TypeEntry* enumTypeEntry = 0; + if (arg->type()->isFlags()) + enumTypeEntry = reinterpret_cast<const FlagsTypeEntry*>(arg->type()->typeEntry())->originator(); + else if (arg->type()->isEnum()) + enumTypeEntry = arg->type()->typeEntry(); + if (enumTypeEntry) + argName = QString::fromLatin1("%1(%2)").arg(arg->type()->cppSignature(), argName); + args << argName; + } + s << args.join(QLatin1String(", ")) << ')'; + s << "; }" << endl; + } + + // pure virtual functions need a default implementation + if ((func->isPrivate() && !visibilityModifiedToPrivate(func)) + || (func->isModifiedRemoved() && !func->isAbstract())) + return; + + if (avoidProtectedHack() && func->ownerClass()->hasPrivateDestructor() + && (func->isAbstract() || func->isVirtual())) + return; + + if (func->isConstructor() || func->isAbstract() || func->isVirtual()) { + s << INDENT; + Options virtualOption = Generator::OriginalTypeDescription; + + if (func->isVirtual() || func->isAbstract()) + s << "virtual "; + else if (!func->hasSignatureModifications()) + virtualOption = Generator::NoOption; + + s << functionSignature(func, QString(), QString(), virtualOption) << ';' << endl; + + // Check if this method hide other methods in base classes + const AbstractMetaFunctionList &ownerFuncs = func->ownerClass()->functions(); + for (const AbstractMetaFunction *f : ownerFuncs) { + if (f != func + && !f->isConstructor() + && !f->isPrivate() + && !f->isVirtual() + && !f->isAbstract() + && !f->isStatic() + && f->name() == func->name()) { + m_inheritedOverloads << f; + } + } + + // TODO: when modified an abstract method ceases to be virtual but stays abstract + //if (func->isModifiedRemoved() && func->isAbstract()) { + //} + } +} + +static void _writeTypeIndexDefineLine(QTextStream& s, const QString& variableName, int typeIndex) +{ + s << "#define "; + s.setFieldWidth(60); + s << variableName; + s.setFieldWidth(0); + s << ' ' << typeIndex << endl; +} +void HeaderGenerator::writeTypeIndexDefineLine(QTextStream& s, const TypeEntry* typeEntry) +{ + if (!typeEntry || !typeEntry->generateCode()) + return; + s.setFieldAlignment(QTextStream::AlignLeft); + int typeIndex = getTypeIndex(typeEntry); + _writeTypeIndexDefineLine(s, getTypeIndexVariableName(typeEntry), typeIndex); + if (typeEntry->isComplex()) { + const ComplexTypeEntry* cType = reinterpret_cast<const ComplexTypeEntry*>(typeEntry); + if (cType->baseContainerType()) { + const AbstractMetaClass *metaClass = AbstractMetaClass::findClass(classes(), cType); + if (metaClass->templateBaseClass()) + _writeTypeIndexDefineLine(s, getTypeIndexVariableName(metaClass, true), typeIndex); + } + } + if (typeEntry->isEnum()) { + const EnumTypeEntry* ete = reinterpret_cast<const EnumTypeEntry*>(typeEntry); + if (ete->flags()) + writeTypeIndexDefineLine(s, ete->flags()); + } +} + +void HeaderGenerator::writeTypeIndexDefine(QTextStream& s, const AbstractMetaClass* metaClass) +{ + if (!metaClass->typeEntry()->generateCode()) + return; + writeTypeIndexDefineLine(s, metaClass->typeEntry()); + const AbstractMetaEnumList &enums = metaClass->enums(); + for (const AbstractMetaEnum *metaEnum : enums) { + if (metaEnum->isPrivate()) + continue; + writeTypeIndexDefineLine(s, metaEnum->typeEntry()); + } +} + +bool HeaderGenerator::finishGeneration() +{ + // Generate the main header for this module. + // This header should be included by binding modules + // extendind on top of this one. + QSet<Include> includes; + QString macros; + QTextStream macrosStream(¯os); + QString sbkTypeFunctions; + QTextStream typeFunctions(&sbkTypeFunctions); + QString protectedEnumSurrogates; + QTextStream protEnumsSurrogates(&protectedEnumSurrogates); + + Indentation indent(INDENT); + + macrosStream << "// Type indices" << endl; + AbstractMetaEnumList globalEnums = this->globalEnums(); + const AbstractMetaClassList &classList = classes(); + for (const AbstractMetaClass *metaClass : classList) { + writeTypeIndexDefine(macrosStream, metaClass); + lookForEnumsInClassesNotToBeGenerated(globalEnums, metaClass); + } + + for (const AbstractMetaEnum *metaEnum : qAsConst(globalEnums)) + writeTypeIndexDefineLine(macrosStream, metaEnum->typeEntry()); + + // Write the smart pointer define indexes. + int smartPointerCountIndex = getMaxTypeIndex(); + int smartPointerCount = 0; + const QVector<const AbstractMetaType *> &instantiatedSmartPtrs = instantiatedSmartPointers(); + for (const AbstractMetaType *metaType : instantiatedSmartPtrs) { + QString variableName = getTypeIndexVariableName(metaType); + macrosStream << "#define "; + macrosStream.setFieldWidth(60); + macrosStream << variableName; + macrosStream.setFieldWidth(0); + macrosStream << ' ' << smartPointerCountIndex << " // " << metaType->cppSignature() + << endl; + ++smartPointerCountIndex; + ++smartPointerCount; + } + + + macrosStream << "#define "; + macrosStream.setFieldWidth(60); + macrosStream << QLatin1String("SBK_") + moduleName() + QLatin1String("_IDX_COUNT"); + macrosStream.setFieldWidth(0); + macrosStream << ' ' << getMaxTypeIndex() + smartPointerCount << endl << endl; + macrosStream << "// This variable stores all Python types exported by this module." << endl; + macrosStream << "extern PyTypeObject** " << cppApiVariableName() << ';' << endl << endl; + macrosStream << "// This variable stores all type converters exported by this module." << endl; + macrosStream << "extern SbkConverter** " << convertersVariableName() << ';' << endl << endl; + + // TODO-CONVERTER ------------------------------------------------------------------------------ + // Using a counter would not do, a fix must be made to APIExtractor's getTypeIndex(). + macrosStream << "// Converter indices" << endl; + const PrimitiveTypeEntryList &primitives = primitiveTypes(); + int pCount = 0; + for (const PrimitiveTypeEntry *ptype : primitives) { + /* Note: do not generate indices for typedef'd primitive types + * as they'll use the primitive type converters instead, so we + * don't need to create any other. + */ + if (!ptype->generateCode() || !ptype->customConversion()) + continue; + + _writeTypeIndexDefineLine(macrosStream, getTypeIndexVariableName(ptype), pCount++); + } + + const QVector<const AbstractMetaType *> &containers = instantiatedContainers(); + for (const AbstractMetaType *container : containers) { + //_writeTypeIndexDefineLine(macrosStream, getTypeIndexVariableName(container), pCount); + // DEBUG + QString variableName = getTypeIndexVariableName(container); + macrosStream << "#define "; + macrosStream.setFieldWidth(60); + macrosStream << variableName; + macrosStream.setFieldWidth(0); + macrosStream << ' ' << pCount << " // " << container->cppSignature() << endl; + // DEBUG + pCount++; + } + + // Because on win32 the compiler will not accept a zero length array. + if (pCount == 0) + pCount++; + _writeTypeIndexDefineLine(macrosStream, QStringLiteral("SBK_%1_CONVERTERS_IDX_COUNT").arg(moduleName()), pCount); + macrosStream << endl; + // TODO-CONVERTER ------------------------------------------------------------------------------ + + macrosStream << "// Macros for type check" << endl; + for (const AbstractMetaEnum *cppEnum : globalEnums) { + if (cppEnum->isAnonymous() || cppEnum->isPrivate()) + continue; + includes << cppEnum->typeEntry()->include(); + writeProtectedEnumSurrogate(protEnumsSurrogates, cppEnum); + writeSbkTypeFunction(typeFunctions, cppEnum); + } + + for (AbstractMetaClass *metaClass : classList) { + if (!shouldGenerate(metaClass)) + continue; + + //Includes + const TypeEntry* classType = metaClass->typeEntry(); + includes << classType->include(); + + const AbstractMetaEnumList &enums = metaClass->enums(); + for (const AbstractMetaEnum *cppEnum : enums) { + if (cppEnum->isAnonymous() || cppEnum->isPrivate()) + continue; + EnumTypeEntry* enumType = cppEnum->typeEntry(); + includes << enumType->include(); + writeProtectedEnumSurrogate(protEnumsSurrogates, cppEnum); + writeSbkTypeFunction(typeFunctions, cppEnum); + } + + if (!metaClass->isNamespace()) + writeSbkTypeFunction(typeFunctions, metaClass); + } + + for (const AbstractMetaType *metaType : instantiatedSmartPtrs) { + const TypeEntry *classType = metaType->typeEntry(); + includes << classType->include(); + writeSbkTypeFunction(typeFunctions, metaType); + } + + QString moduleHeaderFileName(outputDirectory() + + QDir::separator() + subDirectoryForPackage(packageName()) + + QDir::separator() + getModuleHeaderFileName()); + + QString includeShield(QLatin1String("SBK_") + moduleName().toUpper() + QLatin1String("_PYTHON_H")); + + FileOut file(moduleHeaderFileName); + QTextStream& s = file.stream; + // write license comment + s << licenseComment() << endl << endl; + + s << "#ifndef " << includeShield << endl; + s << "#define " << includeShield << endl<< endl; + if (!avoidProtectedHack()) { + s << "//workaround to access protected functions" << endl; + s << "#define protected public" << endl << endl; + } + + s << "#include <sbkpython.h>" << endl; + s << "#include <conversions.h>" << endl; + s << "#include <sbkenum.h>" << endl; + s << "#include <basewrapper.h>" << endl; + s << "#include <bindingmanager.h>" << endl; + s << "#include <memory>" << endl << endl; + if (usePySideExtensions()) + s << "#include <pysidesignal.h>" << endl; + + QStringList requiredTargetImports = TypeDatabase::instance()->requiredTargetImports(); + if (!requiredTargetImports.isEmpty()) { + s << "// Module Includes" << endl; + for (const QString &requiredModule : qAsConst(requiredTargetImports)) + s << "#include <" << getModuleHeaderFileName(requiredModule) << ">" << endl; + s << endl; + } + + s << "// Binded library includes" << endl; + for (const Include &include : qAsConst(includes)) + s << include; + + if (!primitiveTypes().isEmpty()) { + s << "// Conversion Includes - Primitive Types" << endl; + const PrimitiveTypeEntryList &primitiveTypeList = primitiveTypes(); + for (const PrimitiveTypeEntry *ptype : primitiveTypeList) + s << ptype->include(); + s << endl; + } + + if (!containerTypes().isEmpty()) { + s << "// Conversion Includes - Container Types" << endl; + const ContainerTypeEntryList &containerTypeList = containerTypes(); + for (const ContainerTypeEntry *ctype : containerTypeList) + s << ctype->include(); + s << endl; + } + + s << macros << endl; + + if (!protectedEnumSurrogates.isEmpty()) { + s << "// Protected enum surrogates" << endl; + s << protectedEnumSurrogates << endl; + } + + s << "namespace Shiboken" << endl << '{' << endl << endl; + + s << "// PyType functions, to get the PyObjectType for a type T\n"; + s << sbkTypeFunctions << endl; + + s << "} // namespace Shiboken" << endl << endl; + + s << "#endif // " << includeShield << endl << endl; + + return file.done() != FileOut::Failure; +} + +void HeaderGenerator::writeProtectedEnumSurrogate(QTextStream& s, const AbstractMetaEnum* cppEnum) +{ + if (avoidProtectedHack() && cppEnum->isProtected()) + s << "enum " << protectedEnumSurrogateName(cppEnum) << " {};" << endl; +} + +void HeaderGenerator::writeSbkTypeFunction(QTextStream& s, const AbstractMetaEnum* cppEnum) +{ + QString enumName; + if (avoidProtectedHack() && cppEnum->isProtected()) { + enumName = protectedEnumSurrogateName(cppEnum); + } else { + enumName = cppEnum->name(); + if (cppEnum->enclosingClass()) + enumName = cppEnum->enclosingClass()->qualifiedCppName() + QLatin1String("::") + enumName; + } + + s << "template<> inline PyTypeObject* SbkType< ::" << enumName << " >() "; + s << "{ return " << cpythonTypeNameExt(cppEnum->typeEntry()) << "; }\n"; + + FlagsTypeEntry* flag = cppEnum->typeEntry()->flags(); + if (flag) { + s << "template<> inline PyTypeObject* SbkType< ::" << flag->name() << " >() " + << "{ return " << cpythonTypeNameExt(flag) << "; }\n"; + } +} + +void HeaderGenerator::writeSbkTypeFunction(QTextStream& s, const AbstractMetaClass* cppClass) +{ + s << "template<> inline PyTypeObject* SbkType< ::" << cppClass->qualifiedCppName() << " >() " + << "{ return reinterpret_cast<PyTypeObject*>(" << cpythonTypeNameExt(cppClass->typeEntry()) << "); }\n"; +} + +void HeaderGenerator::writeSbkTypeFunction(QTextStream &s, const AbstractMetaType *metaType) +{ + s << "template<> inline PyTypeObject* SbkType< ::" << metaType->cppSignature() << " >() " + << "{ return reinterpret_cast<PyTypeObject*>(" << cpythonTypeNameExt(metaType) << "); }\n"; +} + +void HeaderGenerator::writeInheritedOverloads(QTextStream& s) +{ + for (const AbstractMetaFunction *func : qAsConst(m_inheritedOverloads)) { + s << INDENT << "inline "; + s << functionSignature(func, QString(), QString(), Generator::EnumAsInts|Generator::OriginalTypeDescription) << " { "; + s << (func->type() ? "return " : ""); + s << func->ownerClass()->qualifiedCppName() << "::" << func->originalName() << '('; + QStringList args; + const AbstractMetaArgumentList &arguments = func->arguments(); + for (const AbstractMetaArgument *arg : arguments) { + QString argName = arg->name(); + const TypeEntry* enumTypeEntry = 0; + if (arg->type()->isFlags()) + enumTypeEntry = reinterpret_cast<const FlagsTypeEntry*>(arg->type()->typeEntry())->originator(); + else if (arg->type()->isEnum()) + enumTypeEntry = arg->type()->typeEntry(); + if (enumTypeEntry) + argName = arg->type()->cppSignature() + QLatin1Char('(') + argName + QLatin1Char(')'); + args << argName; + } + s << args.join(QLatin1String(", ")) << ')'; + s << "; }" << endl; + } +} diff --git a/sources/shiboken2/generator/shiboken2/headergenerator.h b/sources/shiboken2/generator/shiboken2/headergenerator.h new file mode 100644 index 000000000..5c1ffec35 --- /dev/null +++ b/sources/shiboken2/generator/shiboken2/headergenerator.h @@ -0,0 +1,67 @@ +/**************************************************************************** +** +** Copyright (C) 2016 The Qt Company Ltd. +** Contact: https://www.qt.io/licensing/ +** +** This file is part of PySide2. +** +** $QT_BEGIN_LICENSE:GPL-EXCEPT$ +** Commercial License Usage +** Licensees holding valid commercial Qt licenses may use this file in +** accordance with the commercial license agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and The Qt Company. For licensing terms +** and conditions see https://www.qt.io/terms-conditions. For further +** information use the contact form at https://www.qt.io/contact-us. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 3 as published by the Free Software +** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT +** included in the packaging of this file. Please review the following +** information to ensure the GNU General Public License requirements will +** be met: https://www.gnu.org/licenses/gpl-3.0.html. +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef HEADERGENERATOR_H +#define HEADERGENERATOR_H + +#include "shibokengenerator.h" + +#include <QtCore/QSet> + +class AbstractMetaFunction; + +/** + * The HeaderGenerator generate the declarations of C++ bindings classes. + */ +class HeaderGenerator : public ShibokenGenerator +{ +public: + QMap<QString, QString> options() const override { return QMap<QString, QString>(); } +protected: + QString fileNamePrefix() const override; + QString fileNameForContext(GeneratorContext &context) const override; + void generateClass(QTextStream& s, GeneratorContext &classContext) override; + bool finishGeneration() override; + +private: + void writeCopyCtor(QTextStream &s, const AbstractMetaClass* metaClass) const; + void writeProtectedFieldAccessors(QTextStream& s, const AbstractMetaField* field) const; + void writeFunction(QTextStream& s, const AbstractMetaFunction* func); + void writeSbkTypeFunction(QTextStream& s, const AbstractMetaEnum* cppEnum); + void writeSbkTypeFunction(QTextStream& s, const AbstractMetaClass* cppClass); + void writeSbkTypeFunction(QTextStream &s, const AbstractMetaType *metaType); + void writeTypeIndexDefineLine(QTextStream& s, const TypeEntry* typeEntry); + void writeTypeIndexDefine(QTextStream& s, const AbstractMetaClass* metaClass); + void writeProtectedEnumSurrogate(QTextStream& s, const AbstractMetaEnum* cppEnum); + void writeInheritedOverloads(QTextStream& s); + + QSet<const AbstractMetaFunction*> m_inheritedOverloads; +}; + +#endif // HEADERGENERATOR_H + diff --git a/sources/shiboken2/generator/shiboken2/overloaddata.cpp b/sources/shiboken2/generator/shiboken2/overloaddata.cpp new file mode 100644 index 000000000..876185cbe --- /dev/null +++ b/sources/shiboken2/generator/shiboken2/overloaddata.cpp @@ -0,0 +1,1092 @@ +/**************************************************************************** +** +** Copyright (C) 2016 The Qt Company Ltd. +** Contact: https://www.qt.io/licensing/ +** +** This file is part of PySide2. +** +** $QT_BEGIN_LICENSE:GPL-EXCEPT$ +** Commercial License Usage +** Licensees holding valid commercial Qt licenses may use this file in +** accordance with the commercial license agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and The Qt Company. For licensing terms +** and conditions see https://www.qt.io/terms-conditions. For further +** information use the contact form at https://www.qt.io/contact-us. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 3 as published by the Free Software +** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT +** included in the packaging of this file. Please review the following +** information to ensure the GNU General Public License requirements will +** be met: https://www.gnu.org/licenses/gpl-3.0.html. +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include <abstractmetalang.h> +#include <reporthandler.h> +#include <graph.h> +#include "overloaddata.h" +#include "shibokengenerator.h" + +#include <QtCore/QDir> +#include <QtCore/QFile> +#include <QtCore/QTemporaryFile> + +static const TypeEntry *getReferencedTypeEntry(const TypeEntry *typeEntry) +{ + if (typeEntry->isPrimitive()) { + const PrimitiveTypeEntry* pte = dynamic_cast<const PrimitiveTypeEntry*>(typeEntry); + while (pte->referencedTypeEntry()) + pte = pte->referencedTypeEntry(); + typeEntry = pte; + } + return typeEntry; +} + +static QString getTypeName(const AbstractMetaType* type) +{ + const TypeEntry* typeEntry = getReferencedTypeEntry(type->typeEntry()); + QString typeName = typeEntry->name(); + if (typeEntry->isContainer()) { + QStringList types; + const AbstractMetaTypeList &instantiations = type->instantiations(); + for (const AbstractMetaType *cType : instantiations) { + const TypeEntry *typeEntry = getReferencedTypeEntry(cType->typeEntry()); + types << typeEntry->name(); + } + typeName += QLatin1Char('<') + types.join(QLatin1Char(',')) + QLatin1String(" >"); + } + return typeName; +} + +static QString getTypeName(const OverloadData* ov) +{ + return ov->hasArgumentTypeReplace() ? ov->argumentTypeReplaced() : getTypeName(ov->argType()); +} + +static bool typesAreEqual(const AbstractMetaType* typeA, const AbstractMetaType* typeB) +{ + if (typeA->typeEntry() == typeB->typeEntry()) { + if (typeA->isContainer() || typeA->isSmartPointer()) { + if (typeA->instantiations().size() != typeB->instantiations().size()) + return false; + + for (int i = 0; i < typeA->instantiations().size(); ++i) { + if (!typesAreEqual(typeA->instantiations().at(i), typeB->instantiations().at(i))) + return false; + } + return true; + } + + return !(ShibokenGenerator::isCString(typeA) ^ ShibokenGenerator::isCString(typeB)); + } + return false; +} + + +/** + * OverloadSortData just helps writing clearer code in the + * OverloadData::sortNextOverloads method. + */ +struct OverloadSortData +{ + OverloadSortData() : counter(0) {}; + + /** + * Adds a typeName into the type map without associating it with + * a OverloadData. This is done to express type dependencies that could + * or could not appear in overloaded signatures not processed yet. + */ + void mapType(const QString& typeName) + { + if (map.contains(typeName)) + return; + map[typeName] = counter; + if (!reverseMap.contains(counter)) + reverseMap[counter] = 0; + counter++; + } + + void mapType(OverloadData* overloadData) + { + QString typeName = getTypeName(overloadData); + map[typeName] = counter; + reverseMap[counter] = overloadData; + counter++; + } + + int lastProcessedItemId() { return counter - 1; } + + int counter; + QHash<QString, int> map; // typeName -> id + QHash<int, OverloadData*> reverseMap; // id -> OverloadData; +}; + +/** + * Helper function that returns the name of a container get from containerType argument and + * an instantiation taken either from an implicit conversion expressed by the function argument, + * or from the string argument implicitConvTypeName. + */ +static QString getImplicitConversionTypeName(const AbstractMetaType* containerType, + const AbstractMetaType* instantiation, + const AbstractMetaFunction* function, + const QString& implicitConvTypeName = QString()) +{ + QString impConv; + if (!implicitConvTypeName.isEmpty()) + impConv = implicitConvTypeName; + else if (function->isConversionOperator()) + impConv = function->ownerClass()->typeEntry()->name(); + else + impConv = getTypeName(function->arguments().first()->type()); + + QStringList types; + const AbstractMetaTypeList &instantiations = containerType->instantiations(); + for (const AbstractMetaType *otherType : instantiations) + types << (otherType == instantiation ? impConv : getTypeName(otherType)); + + const ContainerTypeEntry* containerTypeEntry = dynamic_cast<const ContainerTypeEntry*>(containerType->typeEntry()); + return containerTypeEntry->qualifiedCppName() + QLatin1Char('<') + + types.join(QLatin1String(", ")) + QLatin1String(" >"); +} + +static QString msgCyclicDependency(const QString &funcName, const QString &graphName, + const OverloadData::MetaFunctionList &involvedConversions) +{ + QString result; + QTextStream str(&result); + str << "Cyclic dependency found on overloaddata for \"" << funcName + << "\" method! The graph boy saved the graph at \"" << QDir::toNativeSeparators(graphName) + << "\"."; + if (const int count = involvedConversions.size()) { + str << " Implicit conversions (" << count << "): "; + for (int i = 0; i < count; ++i) { + if (i) + str << ", \""; + str << involvedConversions.at(i)->signature() << '"'; + if (const AbstractMetaClass *c = involvedConversions.at(i)->implementingClass()) + str << '(' << c->name() << ')'; + } + } + return result; +} + +/** + * Topologically sort the overloads by implicit convertion order + * + * This avoids using an implicit conversion if there's an explicit + * overload for the convertible type. So, if there's an implicit convert + * like TargetType(ConvertibleType foo) and both are in the overload list, + * ConvertibleType is checked before TargetType. + * + * Side effects: Modifies m_nextOverloadData + */ +void OverloadData::sortNextOverloads() +{ + OverloadSortData sortData; + bool checkPyObject = false; + int pyobjectIndex = 0; + bool checkPySequence = false; + int pySeqIndex = 0; + bool checkQString = false; + int qstringIndex = 0; + bool checkQVariant = false; + int qvariantIndex = 0; + bool checkPyBuffer = false; + int pyBufferIndex = 0; + + // Primitive types that are not int, long, short, + // char and their respective unsigned counterparts. + QStringList nonIntegerPrimitives; + nonIntegerPrimitives << QLatin1String("float") << QLatin1String("double") + << QLatin1String("bool"); + + // Signed integer primitive types. + QStringList signedIntegerPrimitives; + signedIntegerPrimitives << QLatin1String("int") << QLatin1String("short") + << QLatin1String("long"); + + // sort the children overloads + for (OverloadData *ov : m_nextOverloadData) + ov->sortNextOverloads(); + + if (m_nextOverloadData.size() <= 1) + return; + + // Populates the OverloadSortData object containing map and reverseMap, to map type names to ids, + // these ids will be used by the topological sort algorithm, because is easier and faster to work + // with graph sorting using integers. + for (OverloadData *ov : m_nextOverloadData) { + sortData.mapType(ov); + + const QString typeName(getTypeName(ov)); + + if (!checkPyObject && typeName.contains(QLatin1String("PyObject"))) { + checkPyObject = true; + pyobjectIndex = sortData.lastProcessedItemId(); + } else if (!checkPySequence && typeName == QLatin1String("PySequence")) { + checkPySequence = true; + pySeqIndex = sortData.lastProcessedItemId(); + } else if (!checkPyBuffer && typeName == QLatin1String("PyBuffer")) { + checkPyBuffer = true; + pyBufferIndex = sortData.lastProcessedItemId(); + } else if (!checkQVariant && typeName == QLatin1String("QVariant")) { + checkQVariant = true; + qvariantIndex = sortData.lastProcessedItemId(); + } else if (!checkQString && typeName == QLatin1String("QString")) { + checkQString = true; + qstringIndex = sortData.lastProcessedItemId(); + } + + const AbstractMetaTypeList &instantiations = ov->argType()->instantiations(); + for (const AbstractMetaType *instantiation : instantiations) { + // Add dependencies for type instantiation of container. + QString typeName = getTypeName(instantiation); + sortData.mapType(typeName); + + // Build dependency for implicit conversion types instantiations for base container. + // For example, considering signatures "method(list<PointF>)" and "method(list<Point>)", + // and being PointF implicitly convertible from Point, an list<T> instantiation with T + // as Point must come before the PointF instantiation, or else list<Point> will never + // be called. In the case of primitive types, list<double> must come before list<int>. + if (instantiation->isPrimitive() && (signedIntegerPrimitives.contains(instantiation->name()))) { + for (const QString &primitive : qAsConst(nonIntegerPrimitives)) + sortData.mapType(getImplicitConversionTypeName(ov->argType(), instantiation, 0, primitive)); + } else { + const AbstractMetaFunctionList &funcs = m_generator->implicitConversions(instantiation); + for (const AbstractMetaFunction *function : funcs) + sortData.mapType(getImplicitConversionTypeName(ov->argType(), instantiation, function)); + } + } + } + + + // Create the graph of type dependencies based on implicit conversions. + Graph graph(sortData.reverseMap.count()); + // All C++ primitive types, add any forgotten type AT THE END OF THIS LIST! + const char* primitiveTypes[] = {"int", + "unsigned int", + "long", + "unsigned long", + "short", + "unsigned short", + "bool", + "unsigned char", + "char", + "float", + "double", + "const char*" + }; + const int numPrimitives = sizeof(primitiveTypes)/sizeof(const char*); + bool hasPrimitive[numPrimitives]; + for (int i = 0; i < numPrimitives; ++i) + hasPrimitive[i] = sortData.map.contains(QLatin1String(primitiveTypes[i])); + + if (checkPySequence && checkPyObject) + graph.addEdge(pySeqIndex, pyobjectIndex); + + QStringList classesWithIntegerImplicitConversion; + + MetaFunctionList involvedConversions; + + for (OverloadData *ov : m_nextOverloadData) { + const AbstractMetaType* targetType = ov->argType(); + const QString targetTypeEntryName(getTypeName(ov)); + int targetTypeId = sortData.map[targetTypeEntryName]; + + // Process implicit conversions + const AbstractMetaFunctionList &functions = m_generator->implicitConversions(targetType); + for (AbstractMetaFunction *function : functions) { + QString convertibleType; + if (function->isConversionOperator()) + convertibleType = function->ownerClass()->typeEntry()->name(); + else + convertibleType = getTypeName(function->arguments().first()->type()); + + if (convertibleType == QLatin1String("int") || convertibleType == QLatin1String("unsigned int")) + classesWithIntegerImplicitConversion << targetTypeEntryName; + + if (!sortData.map.contains(convertibleType)) + continue; + + int convertibleTypeId = sortData.map[convertibleType]; + + // If a reverse pair already exists, remove it. Probably due to the + // container check (This happened to QVariant and QHash) + graph.removeEdge(targetTypeId, convertibleTypeId); + graph.addEdge(convertibleTypeId, targetTypeId); + involvedConversions.append(function); + } + + // Process inheritance relationships + if (targetType->isValue() || targetType->isObject()) { + const AbstractMetaClass *metaClass = AbstractMetaClass::findClass(m_generator->classes(), targetType->typeEntry()); + const AbstractMetaClassList &ancestors = m_generator->getAllAncestors(metaClass); + for (const AbstractMetaClass *ancestor : ancestors) { + QString ancestorTypeName = ancestor->typeEntry()->name(); + if (!sortData.map.contains(ancestorTypeName)) + continue; + int ancestorTypeId = sortData.map[ancestorTypeName]; + graph.removeEdge(ancestorTypeId, targetTypeId); + graph.addEdge(targetTypeId, ancestorTypeId); + } + } + + // Process template instantiations + const AbstractMetaTypeList &instantiations = targetType->instantiations(); + for (const AbstractMetaType *instantiation : instantiations) { + if (sortData.map.contains(getTypeName(instantiation))) { + int convertible = sortData.map[getTypeName(instantiation)]; + + if (!graph.containsEdge(targetTypeId, convertible)) // Avoid cyclic dependency. + graph.addEdge(convertible, targetTypeId); + + if (instantiation->isPrimitive() && (signedIntegerPrimitives.contains(instantiation->name()))) { + for (const QString &primitive : qAsConst(nonIntegerPrimitives)) { + QString convertibleTypeName = getImplicitConversionTypeName(ov->argType(), instantiation, 0, primitive); + if (!graph.containsEdge(targetTypeId, sortData.map[convertibleTypeName])) // Avoid cyclic dependency. + graph.addEdge(sortData.map[convertibleTypeName], targetTypeId); + } + + } else { + const AbstractMetaFunctionList &funcs = m_generator->implicitConversions(instantiation); + for (const AbstractMetaFunction *function : funcs) { + QString convertibleTypeName = getImplicitConversionTypeName(ov->argType(), instantiation, function); + if (!graph.containsEdge(targetTypeId, sortData.map[convertibleTypeName])) { // Avoid cyclic dependency. + graph.addEdge(sortData.map[convertibleTypeName], targetTypeId); + involvedConversions.append(function); + } + } + } + } + } + + + if ((checkPySequence || checkPyObject || checkPyBuffer) + && !targetTypeEntryName.contains(QLatin1String("PyObject")) + && !targetTypeEntryName.contains(QLatin1String("PyBuffer")) + && !targetTypeEntryName.contains(QLatin1String("PySequence"))) { + if (checkPySequence) { + // PySequence will be checked after all more specific types, but before PyObject. + graph.addEdge(targetTypeId, pySeqIndex); + } else if (checkPyBuffer) { + // PySequence will be checked after all more specific types, but before PyObject. + graph.addEdge(targetTypeId, pyBufferIndex); + } else { + // Add dependency on PyObject, so its check is the last one (too generic). + graph.addEdge(targetTypeId, pyobjectIndex); + } + } else if (checkQVariant && targetTypeEntryName != QLatin1String("QVariant")) { + if (!graph.containsEdge(qvariantIndex, targetTypeId)) // Avoid cyclic dependency. + graph.addEdge(targetTypeId, qvariantIndex); + } else if (checkQString && ShibokenGenerator::isPointer(ov->argType()) + && targetTypeEntryName != QLatin1String("QString") + && targetTypeEntryName != QLatin1String("QByteArray") + && (!checkPyObject || targetTypeId != pyobjectIndex)) { + if (!graph.containsEdge(qstringIndex, targetTypeId)) // Avoid cyclic dependency. + graph.addEdge(targetTypeId, qstringIndex); + } + + if (targetType->isEnum()) { + // Enum values must precede primitive types. + for (int i = 0; i < numPrimitives; ++i) { + if (hasPrimitive[i]) + graph.addEdge(targetTypeId, sortData.map[QLatin1String(primitiveTypes[i])]); + } + } + } + + // QByteArray args need to be checked after QString args + if (sortData.map.contains(QLatin1String("QString")) && sortData.map.contains(QLatin1String("QByteArray"))) + graph.addEdge(sortData.map[QLatin1String("QString")], sortData.map[QLatin1String("QByteArray")]); + + for (OverloadData *ov : m_nextOverloadData) { + const AbstractMetaType* targetType = ov->argType(); + if (!targetType->isEnum()) + continue; + + QString targetTypeEntryName = getTypeName(targetType); + // Enum values must precede types implicitly convertible from "int" or "unsigned int". + for (const QString &implicitFromInt : qAsConst(classesWithIntegerImplicitConversion)) + graph.addEdge(sortData.map[targetTypeEntryName], sortData.map[implicitFromInt]); + } + + + // Special case for double(int i) (not tracked by m_generator->implicitConversions + for (const QString &signedIntegerName : qAsConst(signedIntegerPrimitives)) { + if (sortData.map.contains(signedIntegerName)) { + for (const QString &nonIntegerName : qAsConst(nonIntegerPrimitives)) { + if (sortData.map.contains(nonIntegerName)) + graph.addEdge(sortData.map[nonIntegerName], sortData.map[signedIntegerName]); + } + } + } + + // sort the overloads topologically based on the dependency graph. + const QLinkedList<int> unmappedResult = graph.topologicalSort(); + if (unmappedResult.isEmpty()) { + QString funcName = referenceFunction()->name(); + if (referenceFunction()->ownerClass()) + funcName.prepend(referenceFunction()->ownerClass()->name() + QLatin1Char('.')); + + // Dump overload graph + QString graphName = QDir::tempPath() + QLatin1Char('/') + funcName + QLatin1String(".dot"); + QHash<QString, int>::const_iterator it = sortData.map.begin(); + QHash<int, QString> nodeNames; + for (; it != sortData.map.end(); ++it) + nodeNames.insert(it.value(), it.key()); + graph.dumpDot(nodeNames, graphName); + qCWarning(lcShiboken).noquote() << qPrintable(msgCyclicDependency(funcName, graphName, involvedConversions)); + } + + m_nextOverloadData.clear(); + for (int i : unmappedResult) { + if (!sortData.reverseMap[i]) + continue; + m_nextOverloadData << sortData.reverseMap[i]; + } +} + +/** + * Root constructor for OverloadData + * + * This constructor receives the list of overloads for a given function and iterates generating + * the graph of OverloadData instances. Each OverloadData instance references an argument/type + * combination. + * + * Example: + * addStuff(double, PyObject *) + * addStuff(double, int) + * + * Given these two overloads, there will be the following graph: + * + * addStuff - double - PyObject* + * \- int + * + */ +OverloadData::OverloadData(const AbstractMetaFunctionList& overloads, const ShibokenGenerator* generator) + : m_minArgs(256), m_maxArgs(0), m_argPos(-1), m_argType(0), + m_headOverloadData(this), m_previousOverloadData(0), m_generator(generator) +{ + for (const AbstractMetaFunction *func : overloads) { + m_overloads.append(func); + int argSize = func->arguments().size() - numberOfRemovedArguments(func); + if (m_minArgs > argSize) + m_minArgs = argSize; + else if (m_maxArgs < argSize) + m_maxArgs = argSize; + OverloadData* currentOverloadData = this; + const AbstractMetaArgumentList &arguments = func->arguments(); + for (const AbstractMetaArgument *arg : arguments) { + if (func->argumentRemoved(arg->argumentIndex() + 1)) + continue; + currentOverloadData = currentOverloadData->addOverloadData(func, arg); + } + } + + // Sort the overload possibilities so that the overload decisor code goes for the most + // important cases first, based on the topological order of the implicit conversions + sortNextOverloads(); + + // Fix minArgs + if (minArgs() > maxArgs()) + m_headOverloadData->m_minArgs = maxArgs(); +} + +OverloadData::OverloadData(OverloadData* headOverloadData, const AbstractMetaFunction* func, + const AbstractMetaType* argType, int argPos) + : m_minArgs(256), m_maxArgs(0), m_argPos(argPos), m_argType(argType), + m_headOverloadData(headOverloadData), m_previousOverloadData(0) +{ + if (func) + this->addOverload(func); +} + +void OverloadData::addOverload(const AbstractMetaFunction* func) +{ + int origNumArgs = func->arguments().size(); + int removed = numberOfRemovedArguments(func); + int numArgs = origNumArgs - removed; + + if (numArgs > m_headOverloadData->m_maxArgs) + m_headOverloadData->m_maxArgs = numArgs; + + if (numArgs < m_headOverloadData->m_minArgs) + m_headOverloadData->m_minArgs = numArgs; + + for (int i = 0; m_headOverloadData->m_minArgs > 0 && i < origNumArgs; i++) { + if (func->argumentRemoved(i + 1)) + continue; + if (!ShibokenGenerator::getDefaultValue(func, func->arguments()[i]).isEmpty()) { + int fixedArgIndex = i - removed; + if (fixedArgIndex < m_headOverloadData->m_minArgs) + m_headOverloadData->m_minArgs = fixedArgIndex; + } + } + + m_overloads.append(func); +} + +OverloadData* OverloadData::addOverloadData(const AbstractMetaFunction* func, + const AbstractMetaArgument* arg) +{ + const AbstractMetaType* argType = arg->type(); + OverloadData* overloadData = 0; + if (!func->isOperatorOverload()) { + for (OverloadData *tmp : qAsConst(m_nextOverloadData)) { + // TODO: 'const char *', 'char *' and 'char' will have the same TypeEntry? + + // If an argument have a type replacement, then we should create a new overloaddata + // for it, unless the next argument also have a identical type replacement. + QString replacedArg = func->typeReplaced(tmp->m_argPos + 1); + bool argsReplaced = !replacedArg.isEmpty() || !tmp->m_argTypeReplaced.isEmpty(); + if ((!argsReplaced && typesAreEqual(tmp->m_argType, argType)) + || (argsReplaced && replacedArg == tmp->argumentTypeReplaced())) { + tmp->addOverload(func); + overloadData = tmp; + } + } + } + + if (!overloadData) { + overloadData = new OverloadData(m_headOverloadData, func, argType, m_argPos + 1); + overloadData->m_previousOverloadData = this; + overloadData->m_generator = this->m_generator; + QString typeReplaced = func->typeReplaced(arg->argumentIndex() + 1); + + if (!typeReplaced.isEmpty()) + overloadData->m_argTypeReplaced = typeReplaced; + m_nextOverloadData.append(overloadData); + } + + return overloadData; +} + +QStringList OverloadData::returnTypes() const +{ + QSet<QString> retTypes; + for (const AbstractMetaFunction *func : m_overloads) { + if (!func->typeReplaced(0).isEmpty()) + retTypes << func->typeReplaced(0); + else if (func->type() && !func->argumentRemoved(0)) + retTypes << func->type()->cppSignature(); + else + retTypes << QLatin1String("void"); + } + return QStringList(retTypes.toList()); +} + +bool OverloadData::hasNonVoidReturnType() const +{ + QStringList retTypes = returnTypes(); + return !retTypes.contains(QLatin1String("void")) || retTypes.size() > 1; +} + +bool OverloadData::hasVarargs() const +{ + for (const AbstractMetaFunction *func : m_overloads) { + AbstractMetaArgumentList args = func->arguments(); + if (args.size() > 1 && args.last()->type()->isVarargs()) + return true; + } + return false; +} + +bool OverloadData::hasAllowThread() const +{ + for (const AbstractMetaFunction *func : m_overloads) { + if (func->allowThread()) + return true; + } + return false; +} + +bool OverloadData::hasStaticFunction(const AbstractMetaFunctionList& overloads) +{ + for (const AbstractMetaFunction *func : qAsConst(overloads)) { + if (func->isStatic()) + return true; + } + return false; +} + +bool OverloadData::hasStaticFunction() const +{ + for (const AbstractMetaFunction *func : m_overloads) { + if (func->isStatic()) + return true; + } + return false; +} + +bool OverloadData::hasInstanceFunction(const AbstractMetaFunctionList& overloads) +{ + for (const AbstractMetaFunction *func : qAsConst(overloads)) { + if (!func->isStatic()) + return true; + } + return false; +} + +bool OverloadData::hasInstanceFunction() const +{ + for (const AbstractMetaFunction *func : m_overloads) { + if (!func->isStatic()) + return true; + } + return false; +} + +bool OverloadData::hasStaticAndInstanceFunctions(const AbstractMetaFunctionList& overloads) +{ + return OverloadData::hasStaticFunction(overloads) && OverloadData::hasInstanceFunction(overloads); +} + +bool OverloadData::hasStaticAndInstanceFunctions() const +{ + return OverloadData::hasStaticFunction() && OverloadData::hasInstanceFunction(); +} + +const AbstractMetaFunction* OverloadData::referenceFunction() const +{ + return m_overloads.first(); +} + +const AbstractMetaArgument* OverloadData::argument(const AbstractMetaFunction* func) const +{ + if (isHeadOverloadData() || !m_overloads.contains(func)) + return 0; + + int argPos = 0; + int removed = 0; + for (int i = 0; argPos <= m_argPos; i++) { + if (func->argumentRemoved(i + 1)) + removed++; + else + argPos++; + } + + return func->arguments()[m_argPos + removed]; +} + +OverloadDataList OverloadData::overloadDataOnPosition(OverloadData* overloadData, int argPos) const +{ + OverloadDataList overloadDataList; + if (overloadData->argPos() == argPos) { + overloadDataList.append(overloadData); + } else if (overloadData->argPos() < argPos) { + const OverloadDataList &data = overloadData->nextOverloadData(); + for (OverloadData *pd : data) + overloadDataList += overloadDataOnPosition(pd, argPos); + } + return overloadDataList; +} + +OverloadDataList OverloadData::overloadDataOnPosition(int argPos) const +{ + OverloadDataList overloadDataList; + overloadDataList += overloadDataOnPosition(m_headOverloadData, argPos); + return overloadDataList; +} + +bool OverloadData::nextArgumentHasDefaultValue() const +{ + for (OverloadData *overloadData : m_nextOverloadData) { + if (overloadData->getFunctionWithDefaultValue()) + return true; + } + return false; +} + +static OverloadData* _findNextArgWithDefault(OverloadData* overloadData) +{ + if (overloadData->getFunctionWithDefaultValue()) + return overloadData; + + OverloadData* result = 0; + const OverloadDataList &data = overloadData->nextOverloadData(); + for (OverloadData *odata : data) { + OverloadData* tmp = _findNextArgWithDefault(odata); + if (!result || (tmp && result->argPos() > tmp->argPos())) + result = tmp; + } + return result; +} + +OverloadData* OverloadData::findNextArgWithDefault() +{ + return _findNextArgWithDefault(this); +} + +bool OverloadData::isFinalOccurrence(const AbstractMetaFunction* func) const +{ + for (const OverloadData *pd : m_nextOverloadData) { + if (pd->overloads().contains(func)) + return false; + } + return true; +} + +OverloadData::MetaFunctionList OverloadData::overloadsWithoutRepetition() const +{ + MetaFunctionList overloads = m_overloads; + for (const AbstractMetaFunction *func : m_overloads) { + if (func->minimalSignature().endsWith(QLatin1String("const"))) + continue; + for (const AbstractMetaFunction *f : qAsConst(overloads)) { + if ((func->minimalSignature() + QLatin1String("const")) == f->minimalSignature()) { + overloads.removeOne(f); + break; + } + } + } + return overloads; +} + +const AbstractMetaFunction* OverloadData::getFunctionWithDefaultValue() const +{ + for (const AbstractMetaFunction *func : m_overloads) { + int removedArgs = 0; + for (int i = 0; i <= m_argPos + removedArgs; i++) { + if (func->argumentRemoved(i + 1)) + removedArgs++; + } + if (!ShibokenGenerator::getDefaultValue(func, func->arguments()[m_argPos + removedArgs]).isEmpty()) + return func; + } + return 0; +} + +QVector<int> OverloadData::invalidArgumentLengths() const +{ + QSet<int> validArgLengths; + + for (const AbstractMetaFunction *func : qAsConst(m_headOverloadData->m_overloads)) { + const AbstractMetaArgumentList args = func->arguments(); + int offset = 0; + for (int i = 0; i < args.size(); ++i) { + if (func->argumentRemoved(i+1)) { + offset++; + } else { + if (!ShibokenGenerator::getDefaultValue(func, args[i]).isEmpty()) + validArgLengths << i-offset; + } + } + validArgLengths << args.size() - offset; + } + + QVector<int> invalidArgLengths; + for (int i = minArgs() + 1; i < maxArgs(); i++) { + if (!validArgLengths.contains(i)) + invalidArgLengths.append(i); + } + + return invalidArgLengths; +} + +int OverloadData::numberOfRemovedArguments(const AbstractMetaFunction* func, int finalArgPos) +{ + int removed = 0; + if (finalArgPos < 0) { + for (int i = 0; i < func->arguments().size(); i++) { + if (func->argumentRemoved(i + 1)) + removed++; + } + } else { + for (int i = 0; i < finalArgPos + removed; i++) { + if (func->argumentRemoved(i + 1)) + removed++; + } + } + return removed; +} + +QPair<int, int> OverloadData::getMinMaxArguments(const AbstractMetaFunctionList& overloads) +{ + int minArgs = 10000; + int maxArgs = 0; + for (int i = 0; i < overloads.size(); i++) { + const AbstractMetaFunction* func = overloads[i]; + int origNumArgs = func->arguments().size(); + int removed = numberOfRemovedArguments(func); + int numArgs = origNumArgs - removed; + if (maxArgs < numArgs) + maxArgs = numArgs; + if (minArgs > numArgs) + minArgs = numArgs; + for (int j = 0; j < origNumArgs; j++) { + if (func->argumentRemoved(j + 1)) + continue; + int fixedArgIndex = j - removed; + if (fixedArgIndex < minArgs && !ShibokenGenerator::getDefaultValue(func, func->arguments()[j]).isEmpty()) + minArgs = fixedArgIndex; + } + } + return QPair<int, int>(minArgs, maxArgs); +} + +bool OverloadData::isSingleArgument(const AbstractMetaFunctionList& overloads) +{ + bool singleArgument = true; + for (const AbstractMetaFunction *func : overloads) { + if (func->arguments().size() - numberOfRemovedArguments(func) != 1) { + singleArgument = false; + break; + } + } + return singleArgument; +} + +void OverloadData::dumpGraph(QString filename) const +{ + QFile file(filename); + if (file.open(QFile::WriteOnly)) { + QTextStream s(&file); + s << m_headOverloadData->dumpGraph(); + } +} + +static inline QString toHtml(QString s) +{ + s.replace(QLatin1Char('<'), QLatin1String("<")); + s.replace(QLatin1Char('>'), QLatin1String(">")); + s.replace(QLatin1Char('&'), QLatin1String("&")); + return s; +} + +QString OverloadData::dumpGraph() const +{ + QString indent(4, QLatin1Char(' ')); + QString result; + QTextStream s(&result); + if (m_argPos == -1) { + const AbstractMetaFunction* rfunc = referenceFunction(); + s << "digraph OverloadedFunction {" << endl; + s << indent << "graph [fontsize=12 fontname=freemono labelloc=t splines=true overlap=false rankdir=LR];" << endl; + + // Shows all function signatures + s << "legend [fontsize=9 fontname=freemono shape=rect label=\""; + for (const AbstractMetaFunction *func : m_overloads) { + s << "f" << functionNumber(func) << " : "; + if (func->type()) + s << toHtml(func->type()->cppSignature()); + else + s << "void"; + s << ' ' << toHtml(func->minimalSignature()) << "\\l"; + } + s << "\"];" << endl; + + // Function box title + s << indent << '"' << rfunc->name() << "\" [shape=plaintext style=\"filled,bold\" margin=0 fontname=freemono fillcolor=white penwidth=1 "; + s << "label=<<table border=\"0\" cellborder=\"0\" cellpadding=\"3\" bgcolor=\"white\">"; + s << "<tr><td bgcolor=\"black\" align=\"center\" cellpadding=\"6\" colspan=\"2\"><font color=\"white\">"; + if (rfunc->ownerClass()) + s << rfunc->ownerClass()->name() << "::"; + s << toHtml(rfunc->name()) << "</font>"; + if (rfunc->isVirtual()) { + s << "<br/><font color=\"white\" point-size=\"10\"><<"; + if (rfunc->isAbstract()) + s << "pure "; + s << "virtual>></font>"; + } + s << "</td></tr>"; + + // Function return type + s << "<tr><td bgcolor=\"gray\" align=\"right\">original type</td><td bgcolor=\"gray\" align=\"left\">"; + if (rfunc->type()) + s << toHtml(rfunc->type()->cppSignature()); + else + s << "void"; + s << "</td></tr>"; + + // Shows type changes for all function signatures + for (const AbstractMetaFunction *func : m_overloads) { + if (func->typeReplaced(0).isEmpty()) + continue; + s << "<tr><td bgcolor=\"gray\" align=\"right\">f" << functionNumber(func); + s << "-type</td><td bgcolor=\"gray\" align=\"left\">"; + s << toHtml(func->typeReplaced(0)) << "</td></tr>"; + } + + // Minimum and maximum number of arguments + s << "<tr><td bgcolor=\"gray\" align=\"right\">minArgs</td><td bgcolor=\"gray\" align=\"left\">"; + s << minArgs() << "</td></tr>"; + s << "<tr><td bgcolor=\"gray\" align=\"right\">maxArgs</td><td bgcolor=\"gray\" align=\"left\">"; + s << maxArgs() << "</td></tr>"; + + if (rfunc->ownerClass()) { + if (rfunc->implementingClass() != rfunc->ownerClass()) + s << "<tr><td align=\"right\">implementor</td><td align=\"left\">" << rfunc->implementingClass()->name() << "</td></tr>"; + if (rfunc->declaringClass() != rfunc->ownerClass() && rfunc->declaringClass() != rfunc->implementingClass()) + s << "<tr><td align=\"right\">declarator</td><td align=\"left\">" << rfunc->declaringClass()->name() << "</td></tr>"; + } + + // Overloads for the signature to present point + s << "<tr><td bgcolor=\"gray\" align=\"right\">overloads</td><td bgcolor=\"gray\" align=\"left\">"; + for (const AbstractMetaFunction *func : m_overloads) + s << 'f' << functionNumber(func) << ' '; + s << "</td></tr>"; + + s << "</table>> ];" << endl; + + for (const OverloadData *pd : m_nextOverloadData) + s << indent << '"' << rfunc->name() << "\" -> " << pd->dumpGraph(); + + s << "}" << endl; + } else { + QString argId = QLatin1String("arg_") + QString::number(quintptr(this)); + s << argId << ';' << endl; + + s << indent << '"' << argId << "\" [shape=\"plaintext\" style=\"filled,bold\" margin=\"0\" fontname=\"freemono\" fillcolor=\"white\" penwidth=1 "; + s << "label=<<table border=\"0\" cellborder=\"0\" cellpadding=\"3\" bgcolor=\"white\">"; + + // Argument box title + s << "<tr><td bgcolor=\"black\" align=\"left\" cellpadding=\"2\" colspan=\"2\">"; + s << "<font color=\"white\" point-size=\"11\">arg #" << argPos() << "</font></td></tr>"; + + // Argument type information + QString type = hasArgumentTypeReplace() ? argumentTypeReplaced() : argType()->cppSignature(); + s << "<tr><td bgcolor=\"gray\" align=\"right\">type</td><td bgcolor=\"gray\" align=\"left\">"; + s << toHtml(type) << "</td></tr>"; + if (hasArgumentTypeReplace()) { + s << "<tr><td bgcolor=\"gray\" align=\"right\">orig. type</td><td bgcolor=\"gray\" align=\"left\">"; + s << toHtml(argType()->cppSignature()) << "</td></tr>"; + } + + // Overloads for the signature to present point + s << "<tr><td bgcolor=\"gray\" align=\"right\">overloads</td><td bgcolor=\"gray\" align=\"left\">"; + for (const AbstractMetaFunction *func : m_overloads) + s << 'f' << functionNumber(func) << ' '; + s << "</td></tr>"; + + // Show default values (original and modified) for various functions + for (const AbstractMetaFunction *func : m_overloads) { + const AbstractMetaArgument* arg = argument(func); + if (!arg) + continue; + QString argDefault = ShibokenGenerator::getDefaultValue(func, arg); + if (!argDefault.isEmpty() || + argDefault != arg->originalDefaultValueExpression()) { + s << "<tr><td bgcolor=\"gray\" align=\"right\">f" << functionNumber(func); + s << "-default</td><td bgcolor=\"gray\" align=\"left\">"; + s << argDefault << "</td></tr>"; + } + if (argDefault != arg->originalDefaultValueExpression()) { + s << "<tr><td bgcolor=\"gray\" align=\"right\">f" << functionNumber(func); + s << "-orig-default</td><td bgcolor=\"gray\" align=\"left\">"; + s << arg->originalDefaultValueExpression() << "</td></tr>"; + } + } + + s << "</table>>];" << endl; + + for (const OverloadData *pd : m_nextOverloadData) + s << indent << argId << " -> " << pd->dumpGraph(); + } + return result; +} + +int OverloadData::functionNumber(const AbstractMetaFunction* func) const +{ + return m_headOverloadData->m_overloads.indexOf(func); +} + +OverloadData::~OverloadData() +{ + while (!m_nextOverloadData.isEmpty()) + delete m_nextOverloadData.takeLast(); +} + +bool OverloadData::hasArgumentTypeReplace() const +{ + return !m_argTypeReplaced.isEmpty(); +} + +QString OverloadData::argumentTypeReplaced() const +{ + return m_argTypeReplaced; +} + +bool OverloadData::hasArgumentWithDefaultValue(const AbstractMetaFunctionList& overloads) +{ + if (OverloadData::getMinMaxArguments(overloads).second == 0) + return false; + for (const AbstractMetaFunction *func : overloads) { + if (hasArgumentWithDefaultValue(func)) + return true; + } + return false; +} + +bool OverloadData::hasArgumentWithDefaultValue() const +{ + if (maxArgs() == 0) + return false; + for (const AbstractMetaFunction *func : m_overloads) { + if (hasArgumentWithDefaultValue(func)) + return true; + } + return false; +} + +bool OverloadData::hasArgumentWithDefaultValue(const AbstractMetaFunction* func) +{ + const AbstractMetaArgumentList &arguments = func->arguments(); + for (const AbstractMetaArgument *arg : arguments) { + if (func->argumentRemoved(arg->argumentIndex() + 1)) + continue; + if (!ShibokenGenerator::getDefaultValue(func, arg).isEmpty()) + return true; + } + return false; +} + +AbstractMetaArgumentList OverloadData::getArgumentsWithDefaultValues(const AbstractMetaFunction* func) +{ + AbstractMetaArgumentList args; + const AbstractMetaArgumentList &arguments = func->arguments(); + for (AbstractMetaArgument *arg : arguments) { + if (ShibokenGenerator::getDefaultValue(func, arg).isEmpty() + || func->argumentRemoved(arg->argumentIndex() + 1)) + continue; + args << arg; + } + return args; +} + +#ifndef QT_NO_DEBUG_STREAM +void OverloadData::formatDebug(QDebug &d) const +{ + const int count = m_overloads.size(); + d << "argType=" << m_argType << ", minArgs=" << m_minArgs << ", maxArgs=" << m_maxArgs + << ", argPos=" << m_argPos << ", argTypeReplaced=\"" << m_argTypeReplaced + << "\", overloads[" << count << "]=("; + const int oldVerbosity = d.verbosity(); + d.setVerbosity(3); + for (int i = 0; i < count; ++i) { + if (i) + d << '\n'; + d << m_overloads.at(i); + } + d << ')'; + d.setVerbosity(oldVerbosity); +} + +QDebug operator<<(QDebug d, const OverloadData *od) +{ + QDebugStateSaver saver(d); + d.noquote(); + d.nospace(); + d << "OverloadData("; + if (od) + od->formatDebug(d); + else + d << '0'; + d << ')'; + return d; +} +#endif // !QT_NO_DEBUG_STREAM diff --git a/sources/shiboken2/generator/shiboken2/overloaddata.h b/sources/shiboken2/generator/shiboken2/overloaddata.h new file mode 100644 index 000000000..2d815f6bb --- /dev/null +++ b/sources/shiboken2/generator/shiboken2/overloaddata.h @@ -0,0 +1,163 @@ +/**************************************************************************** +** +** Copyright (C) 2016 The Qt Company Ltd. +** Contact: https://www.qt.io/licensing/ +** +** This file is part of PySide2. +** +** $QT_BEGIN_LICENSE:GPL-EXCEPT$ +** Commercial License Usage +** Licensees holding valid commercial Qt licenses may use this file in +** accordance with the commercial license agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and The Qt Company. For licensing terms +** and conditions see https://www.qt.io/terms-conditions. For further +** information use the contact form at https://www.qt.io/contact-us. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 3 as published by the Free Software +** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT +** included in the packaging of this file. Please review the following +** information to ensure the GNU General Public License requirements will +** be met: https://www.gnu.org/licenses/gpl-3.0.html. +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef OVERLOADDATA_H +#define OVERLOADDATA_H + +#include <abstractmetalang_typedefs.h> +#include <QtCore/QBitArray> +#include <QtCore/QVector> + +QT_FORWARD_DECLARE_CLASS(QDebug) + +class ShibokenGenerator; + +class OverloadData; +typedef QVector<OverloadData *> OverloadDataList; + +class OverloadData +{ +public: + typedef QVector<const AbstractMetaFunction *> MetaFunctionList; + + OverloadData(const AbstractMetaFunctionList& overloads, const ShibokenGenerator* generator); + ~OverloadData(); + + int minArgs() const { return m_headOverloadData->m_minArgs; } + int maxArgs() const { return m_headOverloadData->m_maxArgs; } + int argPos() const { return m_argPos; } + + const AbstractMetaType* argType() const { return m_argType; } + + /// Returns a string list containing all the possible return types (including void) for the current OverloadData. + QStringList returnTypes() const; + + /// Returns true if any of the overloads for the current OverloadData has a return type different from void. + bool hasNonVoidReturnType() const; + + /// Returns true if any of the overloads for the current OverloadData has a varargs argument. + bool hasVarargs() const; + + /// Returns true if any of the overloads for the current OverloadData allows threads when called. + bool hasAllowThread() const; + + /// Returns true if any of the overloads for the current OverloadData is static. + bool hasStaticFunction() const; + + /// Returns true if any of the overloads passed as argument is static. + static bool hasStaticFunction(const AbstractMetaFunctionList& overloads); + + /// Returns true if any of the overloads for the current OverloadData is not static. + bool hasInstanceFunction() const; + + /// Returns true if any of the overloads passed as argument is not static. + static bool hasInstanceFunction(const AbstractMetaFunctionList& overloads); + + /// Returns true if among the overloads for the current OverloadData there are static and non-static methods altogether. + bool hasStaticAndInstanceFunctions() const; + + /// Returns true if among the overloads passed as argument there are static and non-static methods altogether. + static bool hasStaticAndInstanceFunctions(const AbstractMetaFunctionList& overloads); + + const AbstractMetaFunction* referenceFunction() const; + const AbstractMetaArgument* argument(const AbstractMetaFunction* func) const; + OverloadDataList overloadDataOnPosition(int argPos) const; + + bool isHeadOverloadData() const { return this == m_headOverloadData; } + + /// Returns the root OverloadData object that represents all the overloads. + OverloadData* headOverloadData() const { return m_headOverloadData; } + + /// Returns the function that has a default value at the current OverloadData argument position, otherwise returns null. + const AbstractMetaFunction* getFunctionWithDefaultValue() const; + + bool nextArgumentHasDefaultValue() const; + /// Returns the nearest occurrence, including this instance, of an argument with a default value. + OverloadData* findNextArgWithDefault(); + bool isFinalOccurrence(const AbstractMetaFunction* func) const; + + /// Returns the list of overloads removing repeated constant functions (ex.: "foo()" and "foo()const", the second is removed). + MetaFunctionList overloadsWithoutRepetition() const; + const MetaFunctionList& overloads() const { return m_overloads; } + OverloadDataList nextOverloadData() const { return m_nextOverloadData; } + OverloadData* previousOverloadData() const { return m_previousOverloadData; } + + QVector<int> invalidArgumentLengths() const; + + static int numberOfRemovedArguments(const AbstractMetaFunction* func, int finalArgPos = -1); + static QPair<int, int> getMinMaxArguments(const AbstractMetaFunctionList& overloads); + /// Returns true if all overloads have no more than one argument. + static bool isSingleArgument(const AbstractMetaFunctionList& overloads); + + void dumpGraph(QString filename) const; + QString dumpGraph() const; + + bool hasArgumentTypeReplace() const; + QString argumentTypeReplaced() const; + + bool hasArgumentWithDefaultValue() const; + static bool hasArgumentWithDefaultValue(const AbstractMetaFunctionList& overloads); + static bool hasArgumentWithDefaultValue(const AbstractMetaFunction* func); + + /// Returns a list of function arguments which have default values and were not removed. + static AbstractMetaArgumentList getArgumentsWithDefaultValues(const AbstractMetaFunction* func); + +#ifndef QT_NO_DEBUG_STREAM + void formatDebug(QDebug &) const; +#endif + +private: + OverloadData(OverloadData* headOverloadData, const AbstractMetaFunction* func, + const AbstractMetaType* argType, int argPos); + + void addOverload(const AbstractMetaFunction* func); + OverloadData* addOverloadData(const AbstractMetaFunction* func, const AbstractMetaArgument* arg); + + void sortNextOverloads(); + + int functionNumber(const AbstractMetaFunction* func) const; + OverloadDataList overloadDataOnPosition(OverloadData* overloadData, int argPos) const; + + int m_minArgs; + int m_maxArgs; + int m_argPos; + const AbstractMetaType* m_argType; + QString m_argTypeReplaced; + MetaFunctionList m_overloads; + + OverloadData* m_headOverloadData; + OverloadDataList m_nextOverloadData; + OverloadData* m_previousOverloadData; + const ShibokenGenerator* m_generator; +}; + +#ifndef QT_NO_DEBUG_STREAM +QDebug operator<<(QDebug, const OverloadData *); +#endif + +#endif // OVERLOADDATA_H diff --git a/sources/shiboken2/generator/shiboken2/shibokengenerator.cpp b/sources/shiboken2/generator/shiboken2/shibokengenerator.cpp new file mode 100644 index 000000000..4768ddc88 --- /dev/null +++ b/sources/shiboken2/generator/shiboken2/shibokengenerator.cpp @@ -0,0 +1,2728 @@ +/**************************************************************************** +** +** Copyright (C) 2016 The Qt Company Ltd. +** Contact: https://www.qt.io/licensing/ +** +** This file is part of PySide2. +** +** $QT_BEGIN_LICENSE:GPL-EXCEPT$ +** Commercial License Usage +** Licensees holding valid commercial Qt licenses may use this file in +** accordance with the commercial license agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and The Qt Company. For licensing terms +** and conditions see https://www.qt.io/terms-conditions. For further +** information use the contact form at https://www.qt.io/contact-us. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 3 as published by the Free Software +** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT +** included in the packaging of this file. Please review the following +** information to ensure the GNU General Public License requirements will +** be met: https://www.gnu.org/licenses/gpl-3.0.html. +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "shibokengenerator.h" +#include <abstractmetalang.h> +#include "overloaddata.h" +#include <reporthandler.h> +#include <typedatabase.h> +#include <iostream> + +#include <QtCore/QDir> +#include <QtCore/QDebug> +#include <QtCore/QRegularExpression> +#include <limits> +#include <memory> + +#define NULL_VALUE "NULL" +#define AVOID_PROTECTED_HACK "avoid-protected-hack" +#define PARENT_CTOR_HEURISTIC "enable-parent-ctor-heuristic" +#define RETURN_VALUE_HEURISTIC "enable-return-value-heuristic" +#define ENABLE_PYSIDE_EXTENSIONS "enable-pyside-extensions" +#define DISABLE_VERBOSE_ERROR_MESSAGES "disable-verbose-error-messages" +#define USE_ISNULL_AS_NB_NONZERO "use-isnull-as-nb_nonzero" + +//static void dumpFunction(AbstractMetaFunctionList lst); + +QHash<QString, QString> ShibokenGenerator::m_pythonPrimitiveTypeName = QHash<QString, QString>(); +QHash<QString, QString> ShibokenGenerator::m_pythonOperators = QHash<QString, QString>(); +QHash<QString, QString> ShibokenGenerator::m_formatUnits = QHash<QString, QString>(); +QHash<QString, QString> ShibokenGenerator::m_tpFuncs = QHash<QString, QString>(); +QStringList ShibokenGenerator::m_knownPythonTypes = QStringList(); + +static QRegularExpression placeHolderRegex(int index) +{ + return QRegularExpression(QLatin1Char('%') + QString::number(index) + QStringLiteral("\\b")); +} + +static QString resolveScopePrefix(const AbstractMetaClass* scope, const QString& value) +{ + if (!scope) + return QString(); + + QString name; + QStringList parts = scope->qualifiedCppName().split(QLatin1String("::"), QString::SkipEmptyParts); + for(int i = (parts.size() - 1) ; i >= 0; i--) { + if (!value.startsWith(parts[i] + QLatin1String("::"))) + name = parts[i] + QLatin1String("::") + name; + else + name.clear(); + } + + return name; +} +ShibokenGenerator::ShibokenGenerator() : Generator() +{ + if (m_pythonPrimitiveTypeName.isEmpty()) + ShibokenGenerator::initPrimitiveTypesCorrespondences(); + + if (m_tpFuncs.isEmpty()) + ShibokenGenerator::clearTpFuncs(); + + if (m_knownPythonTypes.isEmpty()) + ShibokenGenerator::initKnownPythonTypes(); + + m_metaTypeFromStringCache = AbstractMetaTypeCache(); + + m_typeSystemConvName[TypeSystemCheckFunction] = QLatin1String("checkType"); + m_typeSystemConvName[TypeSystemIsConvertibleFunction] = QLatin1String("isConvertible"); + m_typeSystemConvName[TypeSystemToCppFunction] = QLatin1String("toCpp"); + m_typeSystemConvName[TypeSystemToPythonFunction] = QLatin1String("toPython"); + m_typeSystemConvRegEx[TypeSystemCheckFunction] = QRegularExpression(QLatin1String(CHECKTYPE_REGEX)); + m_typeSystemConvRegEx[TypeSystemIsConvertibleFunction] = QRegularExpression(QLatin1String(ISCONVERTIBLE_REGEX)); + m_typeSystemConvRegEx[TypeSystemToPythonFunction] = QRegularExpression(QLatin1String(CONVERTTOPYTHON_REGEX)); + m_typeSystemConvRegEx[TypeSystemToCppFunction] = QRegularExpression(QLatin1String(CONVERTTOCPP_REGEX)); +} + +ShibokenGenerator::~ShibokenGenerator() +{ + // TODO-CONVERTER: it must be caching types that were not created here. + //qDeleteAll(m_metaTypeFromStringCache.values()); +} + +void ShibokenGenerator::clearTpFuncs() +{ + m_tpFuncs.insert(QLatin1String("__str__"), QLatin1String("0")); + m_tpFuncs.insert(QLatin1String("__repr__"), QLatin1String("0")); + m_tpFuncs.insert(QLatin1String("__iter__"), QLatin1String("0")); + m_tpFuncs.insert(QLatin1String("__next__"), QLatin1String("0")); +} + +void ShibokenGenerator::initPrimitiveTypesCorrespondences() +{ + // Python primitive types names + m_pythonPrimitiveTypeName.clear(); + + // PyBool + m_pythonPrimitiveTypeName.insert(QLatin1String("bool"), QLatin1String("PyBool")); + + // PyInt + m_pythonPrimitiveTypeName.insert(QLatin1String("char"), QLatin1String("SbkChar")); + m_pythonPrimitiveTypeName.insert(QLatin1String("signed char"), QLatin1String("SbkChar")); + m_pythonPrimitiveTypeName.insert(QLatin1String("unsigned char"), QLatin1String("SbkChar")); + m_pythonPrimitiveTypeName.insert(QLatin1String("int"), QLatin1String("PyInt")); + m_pythonPrimitiveTypeName.insert(QLatin1String("signed int"), QLatin1String("PyInt")); + m_pythonPrimitiveTypeName.insert(QLatin1String("uint"), QLatin1String("PyInt")); + m_pythonPrimitiveTypeName.insert(QLatin1String("unsigned int"), QLatin1String("PyInt")); + m_pythonPrimitiveTypeName.insert(QLatin1String("short"), QLatin1String("PyInt")); + m_pythonPrimitiveTypeName.insert(QLatin1String("ushort"), QLatin1String("PyInt")); + m_pythonPrimitiveTypeName.insert(QLatin1String("signed short"), QLatin1String("PyInt")); + m_pythonPrimitiveTypeName.insert(QLatin1String("signed short int"), QLatin1String("PyInt")); + m_pythonPrimitiveTypeName.insert(QLatin1String("unsigned short"), QLatin1String("PyInt")); + m_pythonPrimitiveTypeName.insert(QLatin1String("unsigned short int"), QLatin1String("PyInt")); + m_pythonPrimitiveTypeName.insert(QLatin1String("long"), QLatin1String("PyInt")); + + // PyFloat + m_pythonPrimitiveTypeName.insert(QLatin1String("double"), QLatin1String("PyFloat")); + m_pythonPrimitiveTypeName.insert(QLatin1String("float"), QLatin1String("PyFloat")); + + // PyLong + m_pythonPrimitiveTypeName.insert(QLatin1String("unsigned long"), QLatin1String("PyLong")); + m_pythonPrimitiveTypeName.insert(QLatin1String("signed long"), QLatin1String("PyLong")); + m_pythonPrimitiveTypeName.insert(QLatin1String("ulong"), QLatin1String("PyLong")); + m_pythonPrimitiveTypeName.insert(QLatin1String("unsigned long int"), QLatin1String("PyLong")); + m_pythonPrimitiveTypeName.insert(QLatin1String("long long"), QLatin1String("PyLong")); + m_pythonPrimitiveTypeName.insert(QLatin1String("__int64"), QLatin1String("PyLong")); + m_pythonPrimitiveTypeName.insert(QLatin1String("unsigned long long"), QLatin1String("PyLong")); + m_pythonPrimitiveTypeName.insert(QLatin1String("unsigned __int64"), QLatin1String("PyLong")); + m_pythonPrimitiveTypeName.insert(QLatin1String("size_t"), QLatin1String("PyLong")); + + // Python operators + m_pythonOperators.clear(); + + // call operator + m_pythonOperators.insert(QLatin1String("operator()"), QLatin1String("call")); + + // Arithmetic operators + m_pythonOperators.insert(QLatin1String("operator+"), QLatin1String("add")); + m_pythonOperators.insert(QLatin1String("operator-"), QLatin1String("sub")); + m_pythonOperators.insert(QLatin1String("operator*"), QLatin1String("mul")); + m_pythonOperators.insert(QLatin1String("operator/"), QLatin1String("div")); + m_pythonOperators.insert(QLatin1String("operator%"), QLatin1String("mod")); + + // Inplace arithmetic operators + m_pythonOperators.insert(QLatin1String("operator+="), QLatin1String("iadd")); + m_pythonOperators.insert(QLatin1String("operator-="), QLatin1String("isub")); + m_pythonOperators.insert(QLatin1String("operator++"), QLatin1String("iadd")); + m_pythonOperators.insert(QLatin1String("operator--"), QLatin1String("isub")); + m_pythonOperators.insert(QLatin1String("operator*="), QLatin1String("imul")); + m_pythonOperators.insert(QLatin1String("operator/="), QLatin1String("idiv")); + m_pythonOperators.insert(QLatin1String("operator%="), QLatin1String("imod")); + + // Bitwise operators + m_pythonOperators.insert(QLatin1String("operator&"), QLatin1String("and")); + m_pythonOperators.insert(QLatin1String("operator^"), QLatin1String("xor")); + m_pythonOperators.insert(QLatin1String("operator|"), QLatin1String("or")); + m_pythonOperators.insert(QLatin1String("operator<<"), QLatin1String("lshift")); + m_pythonOperators.insert(QLatin1String("operator>>"), QLatin1String("rshift")); + m_pythonOperators.insert(QLatin1String("operator~"), QLatin1String("invert")); + + // Inplace bitwise operators + m_pythonOperators.insert(QLatin1String("operator&="), QLatin1String("iand")); + m_pythonOperators.insert(QLatin1String("operator^="), QLatin1String("ixor")); + m_pythonOperators.insert(QLatin1String("operator|="), QLatin1String("ior")); + m_pythonOperators.insert(QLatin1String("operator<<="), QLatin1String("ilshift")); + m_pythonOperators.insert(QLatin1String("operator>>="), QLatin1String("irshift")); + + // Comparison operators + m_pythonOperators.insert(QLatin1String("operator=="), QLatin1String("eq")); + m_pythonOperators.insert(QLatin1String("operator!="), QLatin1String("ne")); + m_pythonOperators.insert(QLatin1String("operator<"), QLatin1String("lt")); + m_pythonOperators.insert(QLatin1String("operator>"), QLatin1String("gt")); + m_pythonOperators.insert(QLatin1String("operator<="), QLatin1String("le")); + m_pythonOperators.insert(QLatin1String("operator>="), QLatin1String("ge")); + + // Initialize format units for C++->Python->C++ conversion + m_formatUnits.clear(); + m_formatUnits.insert(QLatin1String("char"), QLatin1String("b")); + m_formatUnits.insert(QLatin1String("unsigned char"), QLatin1String("B")); + m_formatUnits.insert(QLatin1String("int"), QLatin1String("i")); + m_formatUnits.insert(QLatin1String("unsigned int"), QLatin1String("I")); + m_formatUnits.insert(QLatin1String("short"), QLatin1String("h")); + m_formatUnits.insert(QLatin1String("unsigned short"), QLatin1String("H")); + m_formatUnits.insert(QLatin1String("long"), QLatin1String("l")); + m_formatUnits.insert(QLatin1String("unsigned long"), QLatin1String("k")); + m_formatUnits.insert(QLatin1String("long long"), QLatin1String("L")); + m_formatUnits.insert(QLatin1String("__int64"), QLatin1String("L")); + m_formatUnits.insert(QLatin1String("unsigned long long"), QLatin1String("K")); + m_formatUnits.insert(QLatin1String("unsigned __int64"), QLatin1String("K")); + m_formatUnits.insert(QLatin1String("double"), QLatin1String("d")); + m_formatUnits.insert(QLatin1String("float"), QLatin1String("f")); +} + +void ShibokenGenerator::initKnownPythonTypes() +{ + m_knownPythonTypes.clear(); + m_knownPythonTypes << QLatin1String("PyBool") << QLatin1String("PyInt") + << QLatin1String("PyFloat") << QLatin1String("PyLong") << QLatin1String("PyObject") + << QLatin1String("PyString") << QLatin1String("PyBuffer") << QLatin1String("PySequence") + << QLatin1String("PyTuple") << QLatin1String("PyList") << QLatin1String("PyDict") + << QLatin1String("PyObject*") << QLatin1String("PyObject *") << QLatin1String("PyTupleObject*"); +} + +QString ShibokenGenerator::translateTypeForWrapperMethod(const AbstractMetaType* cType, + const AbstractMetaClass* context, + Options options) const +{ + if (cType->isArray()) + return translateTypeForWrapperMethod(cType->arrayElementType(), context, options) + QLatin1String("[]"); + + if (avoidProtectedHack() && cType->isEnum()) { + const AbstractMetaEnum* metaEnum = findAbstractMetaEnum(cType); + if (metaEnum && metaEnum->isProtected()) + return protectedEnumSurrogateName(metaEnum); + } + + return translateType(cType, context, options); +} + +bool ShibokenGenerator::shouldGenerateCppWrapper(const AbstractMetaClass* metaClass) const +{ + bool result = metaClass->isPolymorphic() || metaClass->hasVirtualDestructor(); + if (avoidProtectedHack()) { + result = result || metaClass->hasProtectedFields() || metaClass->hasProtectedDestructor(); + if (!result && metaClass->hasProtectedFunctions()) { + int protectedFunctions = 0; + int protectedOperators = 0; + const AbstractMetaFunctionList &funcs = metaClass->functions(); + for (const AbstractMetaFunction *func : funcs) { + if (!func->isProtected() || func->isSignal() || func->isModifiedRemoved()) + continue; + else if (func->isOperatorOverload()) + protectedOperators++; + else + protectedFunctions++; + } + result = result || (protectedFunctions > protectedOperators); + } + } else { + result = result && !metaClass->hasPrivateDestructor(); + } + return result && !metaClass->isNamespace(); +} + +void ShibokenGenerator::lookForEnumsInClassesNotToBeGenerated(AbstractMetaEnumList& enumList, const AbstractMetaClass* metaClass) +{ + if (!metaClass) + return; + + if (metaClass->typeEntry()->codeGeneration() == TypeEntry::GenerateForSubclass) { + const AbstractMetaEnumList &enums = metaClass->enums(); + for (const AbstractMetaEnum *metaEnum : enums) { + if (metaEnum->isPrivate() || metaEnum->typeEntry()->codeGeneration() == TypeEntry::GenerateForSubclass) + continue; + if (!enumList.contains(const_cast<AbstractMetaEnum*>(metaEnum))) + enumList.append(const_cast<AbstractMetaEnum*>(metaEnum)); + } + lookForEnumsInClassesNotToBeGenerated(enumList, metaClass->enclosingClass()); + } +} + +static const AbstractMetaClass* getProperEnclosingClass(const AbstractMetaClass* metaClass) +{ + if (!metaClass) + return 0; + + if (metaClass->typeEntry()->codeGeneration() != TypeEntry::GenerateForSubclass) + return metaClass; + + return getProperEnclosingClass(metaClass->enclosingClass()); +} + +const AbstractMetaClass* ShibokenGenerator::getProperEnclosingClassForEnum(const AbstractMetaEnum* metaEnum) +{ + return getProperEnclosingClass(metaEnum->enclosingClass()); +} + +QString ShibokenGenerator::wrapperName(const AbstractMetaClass* metaClass) const +{ + if (shouldGenerateCppWrapper(metaClass)) { + QString result = metaClass->name(); + if (metaClass->enclosingClass()) // is a inner class + result.replace(QLatin1String("::"), QLatin1String("_")); + + result += QLatin1String("Wrapper"); + return result; + } else { + return metaClass->qualifiedCppName(); + } +} + +QString ShibokenGenerator::wrapperName(const AbstractMetaType *metaType) const +{ + return metaType->cppSignature(); +} + +QString ShibokenGenerator::fullPythonFunctionName(const AbstractMetaFunction* func) +{ + QString funcName; + if (func->isOperatorOverload()) + funcName = ShibokenGenerator::pythonOperatorFunctionName(func); + else + funcName = func->name(); + if (func->ownerClass()) { + QString fullName = func->ownerClass()->fullName(); + if (func->isConstructor()) + funcName = fullName; + else + funcName.prepend(fullName + QLatin1Char('.')); + } + return funcName; +} + +QString ShibokenGenerator::protectedEnumSurrogateName(const AbstractMetaEnum* metaEnum) +{ + return metaEnum->fullName().replace(QLatin1Char('.'), QLatin1Char('_')).replace(QLatin1String("::"), QLatin1String("_")) + QLatin1String("_Surrogate"); +} + +QString ShibokenGenerator::protectedFieldGetterName(const AbstractMetaField* field) +{ + return QStringLiteral("protected_%1_getter").arg(field->name()); +} + +QString ShibokenGenerator::protectedFieldSetterName(const AbstractMetaField* field) +{ + return QStringLiteral("protected_%1_setter").arg(field->name()); +} + +QString ShibokenGenerator::cpythonFunctionName(const AbstractMetaFunction* func) +{ + QString result; + + // PYSIDE-331: For inherited functions, we need to find the same labels. + // Therefore we use the implementing class. + if (func->implementingClass()) { + result = cpythonBaseName(func->implementingClass()->typeEntry()); + if (func->isConstructor()) { + result += QLatin1String("_Init"); + } else { + result += QLatin1String("Func_"); + if (func->isOperatorOverload()) + result += ShibokenGenerator::pythonOperatorFunctionName(func); + else + result += func->name(); + } + } else { + result = QLatin1String("Sbk") + moduleName() + QLatin1String("Module_") + func->name(); + } + + return result; +} + +QString ShibokenGenerator::cpythonMethodDefinitionName(const AbstractMetaFunction* func) +{ + if (!func->ownerClass()) + return QString(); + return QStringLiteral("%1Method_%2").arg(cpythonBaseName(func->ownerClass()->typeEntry()), func->name()); +} + +QString ShibokenGenerator::cpythonGettersSettersDefinitionName(const AbstractMetaClass* metaClass) +{ + return cpythonBaseName(metaClass) + QLatin1String("_getsetlist"); +} + +QString ShibokenGenerator::cpythonSetattroFunctionName(const AbstractMetaClass* metaClass) +{ + return cpythonBaseName(metaClass) + QLatin1String("_setattro"); +} + + +QString ShibokenGenerator::cpythonGetattroFunctionName(const AbstractMetaClass* metaClass) +{ + return cpythonBaseName(metaClass) + QLatin1String("_getattro"); +} + +QString ShibokenGenerator::cpythonGetterFunctionName(const AbstractMetaField* metaField) +{ + return QStringLiteral("%1_get_%2").arg(cpythonBaseName(metaField->enclosingClass()), metaField->name()); +} + +QString ShibokenGenerator::cpythonSetterFunctionName(const AbstractMetaField* metaField) +{ + return QStringLiteral("%1_set_%2").arg(cpythonBaseName(metaField->enclosingClass()), metaField->name()); +} + +static QString cpythonEnumFlagsName(QString moduleName, QString qualifiedCppName) +{ + QString result = QStringLiteral("Sbk%1_%2").arg(moduleName, qualifiedCppName); + result.replace(QLatin1String("::"), QLatin1String("_")); + return result; +} + +static QString searchForEnumScope(const AbstractMetaClass* metaClass, const QString& value) +{ + QString enumValueName = value.trimmed(); + + if (!metaClass) + return QString(); + const AbstractMetaEnumList &enums = metaClass->enums(); + for (const AbstractMetaEnum* metaEnum : enums) { + const AbstractMetaEnumValueList &values = metaEnum->values(); + for (const AbstractMetaEnumValue *enumValue : values) { + if (enumValueName == enumValue->name()) + return metaClass->qualifiedCppName(); + } + } + // PYSIDE-331: We need to also search the base classes. + QString ret = searchForEnumScope(metaClass->enclosingClass(), enumValueName); + if (ret.isEmpty()) + ret = searchForEnumScope(metaClass->baseClass(), enumValueName); + return ret; +} + +/* + * This function uses some heuristics to find out the scope for a given + * argument default value. New situations may arise in the future and + * this method should be updated, do it with care. + */ +QString ShibokenGenerator::guessScopeForDefaultValue(const AbstractMetaFunction* func, const AbstractMetaArgument* arg) +{ + QString value = getDefaultValue(func, arg); + + if (value.isEmpty()) + return QString(); + + if (isPointer(arg->type())) + return value; + + static const QRegularExpression enumValueRegEx(QStringLiteral("^([A-Za-z_]\\w*)?$")); + Q_ASSERT(enumValueRegEx.isValid()); + // Do not qualify macros by class name, eg QSGGeometry(..., int t = GL_UNSIGNED_SHORT); + static const QRegularExpression macroRegEx(QStringLiteral("^[A-Z_][A-Z0-9_]*$")); + Q_ASSERT(macroRegEx.isValid()); + if (arg->type()->isPrimitive() && macroRegEx.match(value).hasMatch()) + return value; + + QString prefix; + QString suffix; + + if (arg->type()->isEnum()) { + const AbstractMetaEnum* metaEnum = findAbstractMetaEnum(arg->type()); + if (metaEnum) + prefix = resolveScopePrefix(metaEnum->enclosingClass(), value); + } else if (arg->type()->isFlags()) { + static const QRegularExpression numberRegEx(QStringLiteral("^\\d+$")); // Numbers to flags + Q_ASSERT(numberRegEx.isValid()); + if (numberRegEx.match(value).hasMatch()) { + QString typeName = translateTypeForWrapperMethod(arg->type(), func->implementingClass()); + if (arg->type()->isConstant()) + typeName.remove(0, sizeof("const ") / sizeof(char) - 1); + switch (arg->type()->referenceType()) { + case NoReference: + break; + case LValueReference: + typeName.chop(1); + break; + case RValueReference: + typeName.chop(2); + break; + } + prefix = typeName + QLatin1Char('('); + suffix = QLatin1Char(')'); + } + + static const QRegularExpression enumCombinationRegEx(QStringLiteral("^([A-Za-z_][\\w:]*)\\(([^,\\(\\)]*)\\)$")); // FlagName(EnumItem|EnumItem|...) + Q_ASSERT(enumCombinationRegEx.isValid()); + const QRegularExpressionMatch match = enumCombinationRegEx.match(value); + if (prefix.isEmpty() && match.hasMatch()) { + QString flagName = match.captured(1); + QStringList enumItems = match.captured(2).split(QLatin1Char('|')); + QString scope = searchForEnumScope(func->implementingClass(), enumItems.first()); + if (!scope.isEmpty()) + scope.append(QLatin1String("::")); + + QStringList fixedEnumItems; + for (const QString &enumItem : qAsConst(enumItems)) + fixedEnumItems << QString(scope + enumItem); + + if (!fixedEnumItems.isEmpty()) { + prefix = flagName + QLatin1Char('('); + value = fixedEnumItems.join(QLatin1Char('|')); + suffix = QLatin1Char(')'); + } + } + } else if (arg->type()->typeEntry()->isValue()) { + const AbstractMetaClass *metaClass = AbstractMetaClass::findClass(classes(), arg->type()->typeEntry()); + if (enumValueRegEx.match(value).hasMatch() && value != QLatin1String("NULL")) + prefix = resolveScopePrefix(metaClass, value); + } else if (arg->type()->isPrimitive() && arg->type()->name() == QLatin1String("int")) { + if (enumValueRegEx.match(value).hasMatch() && func->implementingClass()) + prefix = resolveScopePrefix(func->implementingClass(), value); + } else if(arg->type()->isPrimitive()) { + static const QRegularExpression unknowArgumentRegEx(QStringLiteral("^(?:[A-Za-z_][\\w:]*\\()?([A-Za-z_]\\w*)(?:\\))?$")); // [PrimitiveType(] DESIREDNAME [)] + Q_ASSERT(unknowArgumentRegEx.isValid()); + const QRegularExpressionMatch match = unknowArgumentRegEx.match(value); + if (match.hasMatch() && func->implementingClass()) { + const AbstractMetaFieldList &fields = func->implementingClass()->fields(); + for (const AbstractMetaField *field : fields) { + if (match.captured(1).trimmed() == field->name()) { + QString fieldName = field->name(); + if (field->isStatic()) { + prefix = resolveScopePrefix(func->implementingClass(), value); + fieldName.prepend(prefix); + prefix.clear(); + } else { + fieldName.prepend(QLatin1String(CPP_SELF_VAR "->")); + } + value.replace(match.captured(1), fieldName); + break; + } + } + } + } + + if (!prefix.isEmpty()) + value.prepend(prefix); + if (!suffix.isEmpty()) + value.append(suffix); + + return value; +} + +QString ShibokenGenerator::cpythonEnumName(const EnumTypeEntry* enumEntry) +{ + QString p = enumEntry->targetLangPackage(); + p.replace(QLatin1Char('.'), QLatin1Char('_')); + return cpythonEnumFlagsName(p, enumEntry->qualifiedCppName()); +} + +QString ShibokenGenerator::cpythonEnumName(const AbstractMetaEnum *metaEnum) +{ + return cpythonEnumName(metaEnum->typeEntry()); +} + +QString ShibokenGenerator::cpythonFlagsName(const FlagsTypeEntry* flagsEntry) +{ + QString p = flagsEntry->targetLangPackage(); + p.replace(QLatin1Char('.'), QLatin1Char('_')); + return cpythonEnumFlagsName(p, flagsEntry->originalName()); +} + +QString ShibokenGenerator::cpythonFlagsName(const AbstractMetaEnum *metaEnum) +{ + const FlagsTypeEntry *flags = metaEnum->typeEntry()->flags(); + if (!flags) + return QString(); + return cpythonFlagsName(flags); +} + +QString ShibokenGenerator::cpythonSpecialCastFunctionName(const AbstractMetaClass* metaClass) +{ + return cpythonBaseName(metaClass->typeEntry()) + QLatin1String("SpecialCastFunction"); +} + +QString ShibokenGenerator::cpythonWrapperCPtr(const AbstractMetaClass* metaClass, QString argName) +{ + return cpythonWrapperCPtr(metaClass->typeEntry(), argName); +} + +QString ShibokenGenerator::cpythonWrapperCPtr(const AbstractMetaType *metaType, QString argName) +{ + if (!ShibokenGenerator::isWrapperType(metaType->typeEntry())) + return QString(); + return QLatin1String("reinterpret_cast< ::") + metaType->cppSignature() + + QLatin1String(" *>(Shiboken::Conversions::cppPointer(") + cpythonTypeNameExt(metaType) + + QLatin1String(", reinterpret_cast<SbkObject *>(") + argName + QLatin1String(")))"); +} + +QString ShibokenGenerator::cpythonWrapperCPtr(const TypeEntry* type, QString argName) +{ + if (!ShibokenGenerator::isWrapperType(type)) + return QString(); + return QLatin1String("reinterpret_cast< ::") + type->qualifiedCppName() + + QLatin1String(" *>(Shiboken::Conversions::cppPointer(") + cpythonTypeNameExt(type) + + QLatin1String(", reinterpret_cast<SbkObject *>(") + argName + QLatin1String(")))"); +} + +QString ShibokenGenerator::getFunctionReturnType(const AbstractMetaFunction* func, Options) const +{ + if (func->ownerClass() && func->isConstructor()) + return func->ownerClass()->qualifiedCppName() + QLatin1Char('*'); + + return translateTypeForWrapperMethod(func->type(), func->implementingClass()); +} + +void ShibokenGenerator::writeToPythonConversion(QTextStream & s, const AbstractMetaType* type, + const AbstractMetaClass * /* context */, + const QString& argumentName) +{ + s << cpythonToPythonConversionFunction(type) << argumentName << ')'; +} + +void ShibokenGenerator::writeToCppConversion(QTextStream& s, const AbstractMetaClass* metaClass, + const QString& inArgName, const QString& outArgName) +{ + s << cpythonToCppConversionFunction(metaClass) << inArgName << ", &" << outArgName << ')'; +} + +void ShibokenGenerator::writeToCppConversion(QTextStream& s, const AbstractMetaType* type, const AbstractMetaClass* context, + const QString& inArgName, const QString& outArgName) +{ + s << cpythonToCppConversionFunction(type, context) << inArgName << ", &" << outArgName << ')'; +} + +bool ShibokenGenerator::shouldRejectNullPointerArgument(const AbstractMetaFunction* func, int argIndex) +{ + if (argIndex < 0 || argIndex >= func->arguments().count()) + return false; + + const AbstractMetaArgument* arg = func->arguments().at(argIndex); + if (isValueTypeWithCopyConstructorOnly(arg->type())) + return true; + + // Argument type is not a pointer, a None rejection should not be + // necessary because the type checking would handle that already. + if (!isPointer(arg->type())) + return false; + if (func->argumentRemoved(argIndex + 1)) + return false; + const FunctionModificationList &mods = func->modifications(); + for (const FunctionModification &funcMod : mods) { + for (const ArgumentModification &argMod : funcMod.argument_mods) { + if (argMod.index == argIndex + 1 && argMod.noNullPointers) + return true; + } + } + return false; +} + +QString ShibokenGenerator::getFormatUnitString(const AbstractMetaFunction* func, bool incRef) const +{ + QString result; + const char objType = (incRef ? 'O' : 'N'); + const AbstractMetaArgumentList &arguments = func->arguments(); + for (const AbstractMetaArgument *arg : arguments) { + if (func->argumentRemoved(arg->argumentIndex() + 1)) + continue; + + if (!func->typeReplaced(arg->argumentIndex() + 1).isEmpty()) { + result += QLatin1Char(objType); + } else if (arg->type()->isQObject() + || arg->type()->isObject() + || arg->type()->isValue() + || arg->type()->isValuePointer() + || arg->type()->isNativePointer() + || arg->type()->isEnum() + || arg->type()->isFlags() + || arg->type()->isContainer() + || arg->type()->isSmartPointer() + || arg->type()->referenceType() == LValueReference) { + result += QLatin1Char(objType); + } else if (arg->type()->isPrimitive()) { + const PrimitiveTypeEntry* ptype = (const PrimitiveTypeEntry*) arg->type()->typeEntry(); + if (ptype->basicReferencedTypeEntry()) + ptype = ptype->basicReferencedTypeEntry(); + if (m_formatUnits.contains(ptype->name())) + result += m_formatUnits[ptype->name()]; + else + result += QLatin1Char(objType); + } else if (isCString(arg->type())) { + result += QLatin1Char('z'); + } else { + qCWarning(lcShiboken).noquote().nospace() + << "Method: " << func->ownerClass()->qualifiedCppName() + << "::" << func->signature() << " => Arg:" + << arg->name() << "index: " << arg->argumentIndex() + << " - cannot be handled properly. Use an inject-code to fix it!"; + result += QLatin1Char('?'); + } + } + return result; +} + +QString ShibokenGenerator::cpythonBaseName(const AbstractMetaType* type) +{ + if (isCString(type)) + return QLatin1String("PyString"); + return cpythonBaseName(type->typeEntry()); +} + +QString ShibokenGenerator::cpythonBaseName(const AbstractMetaClass* metaClass) +{ + return cpythonBaseName(metaClass->typeEntry()); +} + +QString ShibokenGenerator::cpythonBaseName(const TypeEntry* type) +{ + QString baseName; + if (ShibokenGenerator::isWrapperType(type) || type->isNamespace()) { // && type->referenceType() == NoReference) { + baseName = QLatin1String("Sbk_") + type->name(); + } else if (type->isPrimitive()) { + const PrimitiveTypeEntry* ptype = (const PrimitiveTypeEntry*) type; + while (ptype->basicReferencedTypeEntry()) + ptype = ptype->basicReferencedTypeEntry(); + if (ptype->targetLangApiName() == ptype->name()) + baseName = pythonPrimitiveTypeName(ptype->name()); + else + baseName = ptype->targetLangApiName(); + } else if (type->isEnum()) { + baseName = cpythonEnumName((const EnumTypeEntry*) type); + } else if (type->isFlags()) { + baseName = cpythonFlagsName((const FlagsTypeEntry*) type); + } else if (type->isContainer()) { + const ContainerTypeEntry* ctype = (const ContainerTypeEntry*) type; + switch (ctype->type()) { + case ContainerTypeEntry::ListContainer: + case ContainerTypeEntry::StringListContainer: + case ContainerTypeEntry::LinkedListContainer: + case ContainerTypeEntry::VectorContainer: + case ContainerTypeEntry::StackContainer: + case ContainerTypeEntry::QueueContainer: + //baseName = "PyList"; + //break; + case ContainerTypeEntry::PairContainer: + //baseName = "PyTuple"; + baseName = QLatin1String("PySequence"); + break; + case ContainerTypeEntry::SetContainer: + baseName = QLatin1String("PySet"); + break; + case ContainerTypeEntry::MapContainer: + case ContainerTypeEntry::MultiMapContainer: + case ContainerTypeEntry::HashContainer: + case ContainerTypeEntry::MultiHashContainer: + baseName = QLatin1String("PyDict"); + break; + default: + Q_ASSERT(false); + } + } else { + baseName = QLatin1String("PyObject"); + } + return baseName.replace(QLatin1String("::"), QLatin1String("_")); +} + +QString ShibokenGenerator::cpythonTypeName(const AbstractMetaClass* metaClass) +{ + return cpythonTypeName(metaClass->typeEntry()); +} + +QString ShibokenGenerator::cpythonTypeName(const TypeEntry* type) +{ + return cpythonBaseName(type) + QLatin1String("_Type"); +} + +QString ShibokenGenerator::cpythonTypeNameExt(const TypeEntry* type) +{ + return cppApiVariableName(type->targetLangPackage()) + QLatin1Char('[') + + getTypeIndexVariableName(type) + QLatin1Char(']'); +} + +QString ShibokenGenerator::converterObject(const AbstractMetaType* type) +{ + if (isCString(type)) + return QLatin1String("Shiboken::Conversions::PrimitiveTypeConverter<const char*>()"); + if (isVoidPointer(type)) + return QLatin1String("Shiboken::Conversions::PrimitiveTypeConverter<void*>()"); + if (type->typeEntry()->isContainer()) { + return convertersVariableName(type->typeEntry()->targetLangPackage()) + + QLatin1Char('[') + getTypeIndexVariableName(type) + QLatin1Char(']'); + } + return converterObject(type->typeEntry()); +} + +QString ShibokenGenerator::converterObject(const TypeEntry* type) +{ + if (isCppPrimitive(type)) + return QString::fromLatin1("Shiboken::Conversions::PrimitiveTypeConverter<%1>()").arg(type->qualifiedCppName()); + if (isWrapperType(type) || type->isEnum() || type->isFlags()) + return QString::fromLatin1("SBK_CONVERTER(%1)").arg(cpythonTypeNameExt(type)); + + if (type->isArray()) { + qDebug() << "Warning: no idea how to handle the Qt5 type " << type->qualifiedCppName(); + return QString::null; + } + + /* the typedef'd primitive types case */ + const PrimitiveTypeEntry* pte = dynamic_cast<const PrimitiveTypeEntry*>(type); + if (!pte) { + qDebug() << "Warning: the Qt5 primitive type is unknown" << type->qualifiedCppName(); + return QString::null; + } + if (pte->basicReferencedTypeEntry()) + pte = pte->basicReferencedTypeEntry(); + if (pte->isPrimitive() && !pte->isCppPrimitive() && !pte->customConversion()) + return QString::fromLatin1("Shiboken::Conversions::PrimitiveTypeConverter<%1>()").arg(pte->qualifiedCppName()); + + return convertersVariableName(type->targetLangPackage()) + + QLatin1Char('[') + getTypeIndexVariableName(type) + QLatin1Char(']'); +} + +QString ShibokenGenerator::cpythonTypeNameExt(const AbstractMetaType* type) +{ + return cppApiVariableName(type->typeEntry()->targetLangPackage()) + QLatin1Char('[') + + getTypeIndexVariableName(type) + QLatin1Char(']'); +} + +static QString msgUnknownOperator(const AbstractMetaFunction* func) +{ + QString result = QLatin1String("Unknown operator: \"") + func->originalName() + QLatin1Char('"'); + if (const AbstractMetaClass *c = func->implementingClass()) + result += QLatin1String(" in class: ") + c->name(); + return result; +} + +static inline QString unknownOperator() { return QStringLiteral("__UNKNOWN_OPERATOR__"); } + +QString ShibokenGenerator::cpythonOperatorFunctionName(const AbstractMetaFunction* func) +{ + if (!func->isOperatorOverload()) + return QString(); + const QString pythonOp = pythonOperatorFunctionName(func->originalName()); + if (pythonOp == unknownOperator()) + qCWarning(lcShiboken).noquote().nospace() << msgUnknownOperator(func); + return QLatin1String("Sbk") + func->ownerClass()->name() + + QLatin1Char('_') + pythonOp; +} + +QString ShibokenGenerator::fixedCppTypeName(const CustomConversion::TargetToNativeConversion* toNative) +{ + if (toNative->sourceType()) + return fixedCppTypeName(toNative->sourceType()); + return toNative->sourceTypeName(); +} +QString ShibokenGenerator::fixedCppTypeName(const AbstractMetaType* type) +{ + return fixedCppTypeName(type->typeEntry(), type->cppSignature()); +} + +static QString _fixedCppTypeName(QString typeName) +{ + typeName.remove(QLatin1Char(' ')); + typeName.replace(QLatin1Char('.'), QLatin1Char('_')); + typeName.replace(QLatin1Char(','), QLatin1Char('_')); + typeName.replace(QLatin1Char('<'), QLatin1Char('_')); + typeName.replace(QLatin1Char('>'), QLatin1Char('_')); + typeName.replace(QLatin1String("::"), QLatin1String("_")); + typeName.replace(QLatin1String("*"), QLatin1String("PTR")); + typeName.replace(QLatin1String("&"), QLatin1String("REF")); + return typeName; +} +QString ShibokenGenerator::fixedCppTypeName(const TypeEntry* type, QString typeName) +{ + if (typeName.isEmpty()) + typeName = type->qualifiedCppName(); + if (!(type->codeGeneration() & TypeEntry::GenerateTargetLang)) { + typeName.prepend(QLatin1Char('_')); + typeName.prepend(type->targetLangPackage()); + } + return _fixedCppTypeName(typeName); +} + +QString ShibokenGenerator::pythonPrimitiveTypeName(const QString& cppTypeName) +{ + QString rv = ShibokenGenerator::m_pythonPrimitiveTypeName.value(cppTypeName, QString()); + if (rv.isEmpty()) { + // activate this when some primitive types are missing, + // i.e. when shiboken itself fails to build. + // In general, this is valid while just called by isNumeric() + // used on Qt5, 2015-09-20 + if (false) { + std::cerr << "primitive type not found: " << qPrintable(cppTypeName) << std::endl; + abort(); + } + } + return rv; +} + +QString ShibokenGenerator::pythonPrimitiveTypeName(const PrimitiveTypeEntry* type) +{ + while (type->basicReferencedTypeEntry()) + type = type->basicReferencedTypeEntry(); + return pythonPrimitiveTypeName(type->name()); +} + +QString ShibokenGenerator::pythonOperatorFunctionName(QString cppOpFuncName) +{ + QString value = m_pythonOperators.value(cppOpFuncName); + if (value.isEmpty()) + return unknownOperator(); + value.prepend(QLatin1String("__")); + value.append(QLatin1String("__")); + return value; +} + +QString ShibokenGenerator::pythonOperatorFunctionName(const AbstractMetaFunction* func) +{ + QString op = pythonOperatorFunctionName(func->originalName()); + if (op == unknownOperator()) + qCWarning(lcShiboken).noquote().nospace() << msgUnknownOperator(func); + if (func->arguments().isEmpty()) { + if (op == QLatin1String("__sub__")) + op = QLatin1String("__neg__"); + else if (op == QLatin1String("__add__")) + op = QLatin1String("__pos__"); + } else if (func->isStatic() && func->arguments().size() == 2) { + // If a operator overload function has 2 arguments and + // is static we assume that it is a reverse operator. + op = op.insert(2, QLatin1Char('r')); + } + return op; +} + +QString ShibokenGenerator::pythonRichCompareOperatorId(QString cppOpFuncName) +{ + return QLatin1String("Py_") + m_pythonOperators.value(cppOpFuncName).toUpper(); +} + +QString ShibokenGenerator::pythonRichCompareOperatorId(const AbstractMetaFunction* func) +{ + return pythonRichCompareOperatorId(func->originalName()); +} + +bool ShibokenGenerator::isNumber(QString cpythonApiName) +{ + return cpythonApiName == QLatin1String("PyInt") + || cpythonApiName == QLatin1String("PyFloat") + || cpythonApiName == QLatin1String("PyLong") + || cpythonApiName == QLatin1String("PyBool"); +} + +bool ShibokenGenerator::isNumber(const TypeEntry* type) +{ + if (!type->isPrimitive()) + return false; + return isNumber(pythonPrimitiveTypeName((const PrimitiveTypeEntry*) type)); +} + +bool ShibokenGenerator::isNumber(const AbstractMetaType* type) +{ + return isNumber(type->typeEntry()); +} + +bool ShibokenGenerator::isPyInt(const TypeEntry* type) +{ + if (!type->isPrimitive()) + return false; + return pythonPrimitiveTypeName((const PrimitiveTypeEntry*) type) == QLatin1String("PyInt"); +} + +bool ShibokenGenerator::isPyInt(const AbstractMetaType* type) +{ + return isPyInt(type->typeEntry()); +} + +bool ShibokenGenerator::isPairContainer(const AbstractMetaType* type) +{ + return type->isContainer() + && static_cast<const ContainerTypeEntry *>(type->typeEntry())->type() == ContainerTypeEntry::PairContainer; +} + +bool ShibokenGenerator::isWrapperType(const TypeEntry* type) +{ + if (type->isComplex()) + return ShibokenGenerator::isWrapperType((const ComplexTypeEntry*)type); + return type->isObject() || type->isValue() || type->isSmartPointer(); +} +bool ShibokenGenerator::isWrapperType(const ComplexTypeEntry* type) +{ + return isObjectType(type) || type->isValue() || type->isSmartPointer(); +} +bool ShibokenGenerator::isWrapperType(const AbstractMetaType* metaType) +{ + return isObjectType(metaType) + || metaType->typeEntry()->isValue() + || metaType->typeEntry()->isSmartPointer(); +} + +bool ShibokenGenerator::isPointerToWrapperType(const AbstractMetaType* type) +{ + return (isObjectType(type) && type->indirections() == 1) || type->isValuePointer(); +} + +bool ShibokenGenerator::isObjectTypeUsedAsValueType(const AbstractMetaType* type) +{ + return type->typeEntry()->isObject() && type->referenceType() == NoReference && type->indirections() == 0; +} + +bool ShibokenGenerator::isValueTypeWithCopyConstructorOnly(const AbstractMetaClass* metaClass) +{ + if (!metaClass || !metaClass->typeEntry()->isValue()) + return false; + AbstractMetaFunctionList ctors = metaClass->queryFunctions(AbstractMetaClass::Constructors); + if (ctors.count() != 1) + return false; + return ctors.first()->functionType() == AbstractMetaFunction::CopyConstructorFunction; +} + +bool ShibokenGenerator::isValueTypeWithCopyConstructorOnly(const TypeEntry* type) const +{ + if (!type || !type->isValue()) + return false; + return isValueTypeWithCopyConstructorOnly(AbstractMetaClass::findClass(classes(), type)); +} + +bool ShibokenGenerator::isValueTypeWithCopyConstructorOnly(const AbstractMetaType* type) const +{ + if (!type || !type->typeEntry()->isValue()) + return false; + return isValueTypeWithCopyConstructorOnly(type->typeEntry()); +} + +bool ShibokenGenerator::isUserPrimitive(const TypeEntry* type) +{ + if (!type->isPrimitive()) + return false; + const PrimitiveTypeEntry* trueType = (const PrimitiveTypeEntry*) type; + if (trueType->basicReferencedTypeEntry()) + trueType = trueType->basicReferencedTypeEntry(); + return trueType->isPrimitive() && !trueType->isCppPrimitive() + && trueType->qualifiedCppName() != QLatin1String("std::string"); +} + +bool ShibokenGenerator::isUserPrimitive(const AbstractMetaType* type) +{ + if (type->indirections() != 0) + return false; + return isUserPrimitive(type->typeEntry()); +} + +bool ShibokenGenerator::isCppPrimitive(const TypeEntry* type) +{ + if (type->isCppPrimitive()) + return true; + if (!type->isPrimitive()) + return false; + const PrimitiveTypeEntry* trueType = (const PrimitiveTypeEntry*) type; + if (trueType->basicReferencedTypeEntry()) + trueType = trueType->basicReferencedTypeEntry(); + return trueType->qualifiedCppName() == QLatin1String("std::string"); +} + +bool ShibokenGenerator::isCppPrimitive(const AbstractMetaType* type) +{ + if (isCString(type) || isVoidPointer(type)) + return true; + if (type->indirections() != 0) + return false; + return isCppPrimitive(type->typeEntry()); +} + +bool ShibokenGenerator::shouldDereferenceArgumentPointer(const AbstractMetaArgument* arg) +{ + return shouldDereferenceAbstractMetaTypePointer(arg->type()); +} + +bool ShibokenGenerator::shouldDereferenceAbstractMetaTypePointer(const AbstractMetaType* metaType) +{ + return metaType->referenceType() == LValueReference && isWrapperType(metaType) && !isPointer(metaType); +} + +bool ShibokenGenerator::visibilityModifiedToPrivate(const AbstractMetaFunction* func) +{ + const FunctionModificationList &mods = func->modifications(); + for (const FunctionModification &mod : mods) { + if (mod.modifiers & Modification::Private) + return true; + } + return false; +} + +QString ShibokenGenerator::cpythonCheckFunction(const AbstractMetaType* metaType, bool genericNumberType) +{ + QString customCheck; + if (metaType->typeEntry()->isCustom()) { + AbstractMetaType* type; + customCheck = guessCPythonCheckFunction(metaType->typeEntry()->name(), &type); + if (type) + metaType = type; + if (!customCheck.isEmpty()) + return customCheck; + } + + if (isCppPrimitive(metaType)) { + if (isCString(metaType)) + return QLatin1String("Shiboken::String::check"); + if (isVoidPointer(metaType)) + return QLatin1String("PyObject_Check"); + return cpythonCheckFunction(metaType->typeEntry(), genericNumberType); + } else if (metaType->typeEntry()->isContainer()) { + QString typeCheck = QLatin1String("Shiboken::Conversions::"); + ContainerTypeEntry::Type type = ((const ContainerTypeEntry*)metaType->typeEntry())->type(); + if (type == ContainerTypeEntry::ListContainer + || type == ContainerTypeEntry::StringListContainer + || type == ContainerTypeEntry::LinkedListContainer + || type == ContainerTypeEntry::VectorContainer + || type == ContainerTypeEntry::StackContainer + || type == ContainerTypeEntry::SetContainer + || type == ContainerTypeEntry::QueueContainer) { + const AbstractMetaType* type = metaType->instantiations().first(); + if (isPointerToWrapperType(type)) { + typeCheck += QString::fromLatin1("checkSequenceTypes(%1, ").arg(cpythonTypeNameExt(type)); + } else if (isWrapperType(type)) { + typeCheck += QLatin1String("convertibleSequenceTypes(reinterpret_cast<const SbkObjectType *>("); + typeCheck += cpythonTypeNameExt(type); + typeCheck += QLatin1String("), "); + } else { + typeCheck += QString::fromLatin1("convertibleSequenceTypes(%1, ").arg(converterObject(type)); + } + } else if (type == ContainerTypeEntry::MapContainer + || type == ContainerTypeEntry::MultiMapContainer + || type == ContainerTypeEntry::HashContainer + || type == ContainerTypeEntry::MultiHashContainer + || type == ContainerTypeEntry::PairContainer) { + QString pyType = (type == ContainerTypeEntry::PairContainer) ? QLatin1String("Pair") : QLatin1String("Dict"); + const AbstractMetaType* firstType = metaType->instantiations().first(); + const AbstractMetaType* secondType = metaType->instantiations().last(); + if (isPointerToWrapperType(firstType) && isPointerToWrapperType(secondType)) { + typeCheck += QString::fromLatin1("check%1Types(%2, %3, ").arg(pyType) + .arg(cpythonTypeNameExt(firstType), cpythonTypeNameExt(secondType)); + } else { + typeCheck += QString::fromLatin1("convertible%1Types(%2, %3, %4, %5, ") + .arg(pyType, converterObject(firstType), + isPointerToWrapperType(firstType) ? QLatin1String("true") : QLatin1String("false"), + converterObject(secondType), + isPointerToWrapperType(secondType) ? QLatin1String("true") : QLatin1String("false")); + } + } + return typeCheck; + } + return cpythonCheckFunction(metaType->typeEntry(), genericNumberType); +} + +QString ShibokenGenerator::cpythonCheckFunction(const TypeEntry* type, bool genericNumberType) +{ + QString customCheck; + if (type->isCustom()) { + AbstractMetaType* metaType; + customCheck = guessCPythonCheckFunction(type->name(), &metaType); + if (metaType) + return cpythonCheckFunction(metaType, genericNumberType); + return customCheck; + } + + if (type->isEnum() || type->isFlags() || isWrapperType(type)) + return QString::fromLatin1("SbkObject_TypeCheck(%1, ").arg(cpythonTypeNameExt(type)); + else if (isCppPrimitive(type)) + return pythonPrimitiveTypeName((const PrimitiveTypeEntry*)type) + QLatin1String("_Check"); + QString typeCheck; + if (type->targetLangApiName() == type->name()) + typeCheck = cpythonIsConvertibleFunction(type); + else if (type->targetLangApiName() == QLatin1String("PyUnicode")) + typeCheck = QLatin1String("Shiboken::String::check"); + else + typeCheck = type->targetLangApiName() + QLatin1String("_Check"); + return typeCheck; +} + +QString ShibokenGenerator::guessCPythonCheckFunction(const QString& type, AbstractMetaType** metaType) +{ + *metaType = 0; + if (type == QLatin1String("PyTypeObject")) + return QLatin1String("PyType_Check"); + + if (type == QLatin1String("PyBuffer")) + return QLatin1String("Shiboken::Buffer::checkType"); + + if (type == QLatin1String("str")) + return QLatin1String("Shiboken::String::check"); + + *metaType = buildAbstractMetaTypeFromString(type); + if (*metaType && !(*metaType)->typeEntry()->isCustom()) + return QString(); + + return type + QLatin1String("_Check"); +} + +QString ShibokenGenerator::guessCPythonIsConvertible(const QString& type) +{ + if (type == QLatin1String("PyTypeObject")) + return QLatin1String("PyType_Check"); + + AbstractMetaType* metaType = buildAbstractMetaTypeFromString(type); + if (metaType && !metaType->typeEntry()->isCustom()) + return cpythonIsConvertibleFunction(metaType); + + return type + QLatin1String("_Check"); +} + +QString ShibokenGenerator::cpythonIsConvertibleFunction(const TypeEntry* type, + bool /* genericNumberType */, + bool /* checkExact */) +{ + if (isWrapperType(type)) { + QString result = QLatin1String("Shiboken::Conversions::"); + result += (type->isValue() && !isValueTypeWithCopyConstructorOnly(type)) + ? QLatin1String("isPythonToCppValueConvertible") + : QLatin1String("isPythonToCppPointerConvertible"); + result += QLatin1String("(reinterpret_cast<SbkObjectType *>(") + + cpythonTypeNameExt(type) + QLatin1String("), "); + return result; + } + return QString::fromLatin1("Shiboken::Conversions::isPythonToCppConvertible(%1, ") + .arg(converterObject(type)); +} +QString ShibokenGenerator::cpythonIsConvertibleFunction(const AbstractMetaType* metaType, + bool /* genericNumberType */) +{ + QString customCheck; + if (metaType->typeEntry()->isCustom()) { + AbstractMetaType* type; + customCheck = guessCPythonCheckFunction(metaType->typeEntry()->name(), &type); + if (type) + metaType = type; + if (!customCheck.isEmpty()) + return customCheck; + } + + if (isWrapperType(metaType)) { + QString result = QLatin1String("Shiboken::Conversions::"); + if (isPointer(metaType) || isValueTypeWithCopyConstructorOnly(metaType)) + result += QLatin1String("isPythonToCppPointerConvertible"); + else if (metaType->referenceType() == LValueReference) + result += QLatin1String("isPythonToCppReferenceConvertible"); + else + result += QLatin1String("isPythonToCppValueConvertible"); + result += QLatin1String("(reinterpret_cast<const SbkObjectType *>(") + + cpythonTypeNameExt(metaType) + QLatin1String("), "); + return result; + } + return QStringLiteral("Shiboken::Conversions::isPythonToCppConvertible(%1, ") + .arg(converterObject(metaType)); +} + +QString ShibokenGenerator::cpythonIsConvertibleFunction(const AbstractMetaArgument *metaArg, bool genericNumberType) +{ + return cpythonIsConvertibleFunction(metaArg->type(), genericNumberType); +} + +QString ShibokenGenerator::cpythonToCppConversionFunction(const AbstractMetaClass* metaClass) +{ + return QLatin1String("Shiboken::Conversions::pythonToCppPointer(reinterpret_cast<SbkObjectType *>(") + + cpythonTypeNameExt(metaClass->typeEntry()) + QLatin1String("), "); +} + +QString ShibokenGenerator::cpythonToCppConversionFunction(const AbstractMetaType *type, + const AbstractMetaClass * /* context */) +{ + if (isWrapperType(type)) { + return QLatin1String("Shiboken::Conversions::pythonToCpp") + + (isPointer(type) ? QLatin1String("Pointer") : QLatin1String("Copy")) + + QLatin1String("(reinterpret_cast<SbkObjectType *>(") + + cpythonTypeNameExt(type) + QLatin1String("), "); + } + return QStringLiteral("Shiboken::Conversions::pythonToCppCopy(%1, ") + .arg(converterObject(type)); +} + +QString ShibokenGenerator::cpythonToPythonConversionFunction(const AbstractMetaType *type, + const AbstractMetaClass * /* context */) +{ + if (isWrapperType(type)) { + QString conversion; + if (type->referenceType() == LValueReference && !(type->isValue() && type->isConstant()) && !isPointer(type)) + conversion = QLatin1String("reference"); + else if (type->isValue() || type->isSmartPointer()) + conversion = QLatin1String("copy"); + else + conversion = QLatin1String("pointer"); + QString result = QLatin1String("Shiboken::Conversions::") + conversion + + QLatin1String("ToPython(reinterpret_cast<const SbkObjectType *>(") + + cpythonTypeNameExt(type) + QLatin1String("), "); + if (conversion != QLatin1String("pointer")) + result += QLatin1Char('&'); + return result; + } + return QStringLiteral("Shiboken::Conversions::copyToPython(%1, %2") + .arg(converterObject(type), + (isCString(type) || isVoidPointer(type)) ? QString() : QLatin1String("&")); +} + +QString ShibokenGenerator::cpythonToPythonConversionFunction(const AbstractMetaClass* metaClass) +{ + return cpythonToPythonConversionFunction(metaClass->typeEntry()); +} + +QString ShibokenGenerator::cpythonToPythonConversionFunction(const TypeEntry* type) +{ + if (isWrapperType(type)) { + const QString conversion = type->isValue() ? QLatin1String("copy") : QLatin1String("pointer"); + QString result = QLatin1String("Shiboken::Conversions::") + conversion + + QLatin1String("ToPython(reinterpret_cast<const SbkObjectType *>(") + cpythonTypeNameExt(type) + + QLatin1String("), "); + if (conversion != QLatin1String("pointer")) + result += QLatin1Char('&'); + return result; + } + + return QStringLiteral("Shiboken::Conversions::copyToPython(%1, &").arg(converterObject(type)); +} + +QString ShibokenGenerator::argumentString(const AbstractMetaFunction *func, + const AbstractMetaArgument *argument, + Options options) const +{ + QString modified_type; + if (!(options & OriginalTypeDescription)) + modified_type = func->typeReplaced(argument->argumentIndex() + 1); + QString arg; + + if (modified_type.isEmpty()) + arg = translateType(argument->type(), func->implementingClass(), options); + else + arg = modified_type.replace(QLatin1Char('$'), QLatin1Char('.')); + + if (!(options & Generator::SkipName)) { + arg += QLatin1Char(' '); + arg += argument->name(); + } + + if ((options & Generator::SkipDefaultValues) != Generator::SkipDefaultValues && + !argument->originalDefaultValueExpression().isEmpty()) + { + QString default_value = argument->originalDefaultValueExpression(); + if (default_value == QLatin1String("NULL")) + default_value = QLatin1String(NULL_VALUE); + + //WORKAROUND: fix this please + if (default_value.startsWith(QLatin1String("new "))) + default_value.remove(0, 4); + + arg += QLatin1String(" = ") + default_value; + } + + return arg; +} + +void ShibokenGenerator::writeArgument(QTextStream &s, + const AbstractMetaFunction *func, + const AbstractMetaArgument *argument, + Options options) const +{ + s << argumentString(func, argument, options); +} + +void ShibokenGenerator::writeFunctionArguments(QTextStream &s, + const AbstractMetaFunction *func, + Options options) const +{ + AbstractMetaArgumentList arguments = func->arguments(); + + if (options & Generator::WriteSelf) { + s << func->implementingClass()->name() << '&'; + if (!(options & SkipName)) + s << " " PYTHON_SELF_VAR; + } + + int argUsed = 0; + for (int i = 0; i < arguments.size(); ++i) { + if ((options & Generator::SkipRemovedArguments) && func->argumentRemoved(i+1)) + continue; + + if ((options & Generator::WriteSelf) || argUsed != 0) + s << ", "; + writeArgument(s, func, arguments[i], options); + argUsed++; + } +} + +QString ShibokenGenerator::functionReturnType(const AbstractMetaFunction* func, Options options) const +{ + QString modifiedReturnType = QString(func->typeReplaced(0)); + if (!modifiedReturnType.isNull() && !(options & OriginalTypeDescription)) + return modifiedReturnType; + else + return translateType(func->type(), func->implementingClass(), options); +} + +QString ShibokenGenerator::functionSignature(const AbstractMetaFunction *func, + QString prepend, + QString append, + Options options, + int /* argCount */) const +{ + QString result; + QTextStream s(&result); + // The actual function + if (!(func->isEmptyFunction() || + func->isNormal() || + func->isSignal())) { + options |= Generator::SkipReturnType; + } else { + s << functionReturnType(func, options) << ' '; + } + + // name + QString name(func->originalName()); + if (func->isConstructor()) + name = wrapperName(func->ownerClass()); + + s << prepend << name << append << '('; + writeFunctionArguments(s, func, options); + s << ')'; + + if (func->isConstant() && !(options & Generator::ExcludeMethodConst)) + s << " const"; + + return result; +} + +void ShibokenGenerator::writeArgumentNames(QTextStream &s, + const AbstractMetaFunction *func, + Options options) const +{ + AbstractMetaArgumentList arguments = func->arguments(); + int argCount = 0; + for (int j = 0, max = arguments.size(); j < max; j++) { + + if ((options & Generator::SkipRemovedArguments) && (func->argumentRemoved(arguments.at(j)->argumentIndex()+1))) + continue; + + s << ((argCount > 0) ? ", " : "") << arguments.at(j)->name(); + + if (((options & Generator::VirtualCall) == 0) + && (!func->conversionRule(TypeSystem::NativeCode, arguments.at(j)->argumentIndex() + 1).isEmpty() + || !func->conversionRule(TypeSystem::TargetLangCode, arguments.at(j)->argumentIndex() + 1).isEmpty()) + && !func->isConstructor()) { + s << CONV_RULE_OUT_VAR_SUFFIX; + } + + argCount++; + } +} + +void ShibokenGenerator::writeFunctionCall(QTextStream& s, + const AbstractMetaFunction* func, + Options options) const +{ + if (!(options & Generator::SkipName)) + s << (func->isConstructor() ? func->ownerClass()->qualifiedCppName() : func->originalName()); + s << '('; + writeArgumentNames(s, func, options); + s << ')'; +} + +void ShibokenGenerator::writeUnusedVariableCast(QTextStream& s, const QString& variableName) +{ + s << INDENT << "SBK_UNUSED(" << variableName<< ')' << endl; +} + +AbstractMetaFunctionList ShibokenGenerator::filterFunctions(const AbstractMetaClass* metaClass) +{ + AbstractMetaFunctionList result; + const AbstractMetaFunctionList &funcs = metaClass->functions(); + for (AbstractMetaFunction *func : funcs) { + if (func->isSignal() || func->isDestructor() || func->usesRValueReferences() + || (func->isModifiedRemoved() && !func->isAbstract() + && (!avoidProtectedHack() || !func->isProtected()))) + continue; + result << func; + } + return result; +} + +ShibokenGenerator::ExtendedConverterData ShibokenGenerator::getExtendedConverters() const +{ + ExtendedConverterData extConvs; + const AbstractMetaClassList &classList = classes(); + for (const AbstractMetaClass *metaClass : classList) { + // Use only the classes for the current module. + if (!shouldGenerate(metaClass)) + continue; + const AbstractMetaFunctionList &overloads = metaClass->operatorOverloads(AbstractMetaClass::ConversionOp); + for (AbstractMetaFunction *convOp : overloads) { + // Get only the conversion operators that return a type from another module, + // that are value-types and were not removed in the type system. + const TypeEntry* convType = convOp->type()->typeEntry(); + if ((convType->codeGeneration() & TypeEntry::GenerateTargetLang) + || !convType->isValue() + || convOp->isModifiedRemoved()) + continue; + extConvs[convType].append(convOp->ownerClass()); + } + } + return extConvs; +} + +QVector<const CustomConversion *> ShibokenGenerator::getPrimitiveCustomConversions() +{ + QVector<const CustomConversion*> conversions; + const PrimitiveTypeEntryList &primitiveTypeList = primitiveTypes(); + for (const PrimitiveTypeEntry *type : primitiveTypeList) { + if (!shouldGenerateTypeEntry(type) || !isUserPrimitive(type) || !type->customConversion()) + continue; + + conversions << type->customConversion(); + } + return conversions; +} + +static QString getArgumentsFromMethodCall(const QString& str) +{ + // It would be way nicer to be able to use a Perl like + // regular expression that accepts temporary variables + // to count the parenthesis. + // For more information check this: + // http://perl.plover.com/yak/regex/samples/slide083.html + static QLatin1String funcCall("%CPPSELF.%FUNCTION_NAME"); + int pos = str.indexOf(funcCall); + if (pos == -1) + return QString(); + pos = pos + funcCall.size(); + while (str.at(pos) == QLatin1Char(' ') || str.at(pos) == QLatin1Char('\t')) + ++pos; + if (str.at(pos) == QLatin1Char('(')) + ++pos; + int begin = pos; + int counter = 1; + while (counter != 0) { + if (str.at(pos) == QLatin1Char('(')) + ++counter; + else if (str.at(pos) == QLatin1Char(')')) + --counter; + ++pos; + } + return str.mid(begin, pos-begin-1); +} + +QString ShibokenGenerator::getCodeSnippets(const CodeSnipList& codeSnips, + TypeSystem::CodeSnipPosition position, + TypeSystem::Language language) +{ + QString code; + QTextStream c(&code); + for (const CodeSnip &snip : codeSnips) { + if ((position != TypeSystem::CodeSnipPositionAny && snip.position != position) || !(snip.language & language)) + continue; + QString snipCode; + QTextStream sc(&snipCode); + formatCode(sc, snip.code(), INDENT); + c << snipCode; + } + return code; +} +void ShibokenGenerator::processCodeSnip(QString& code, const AbstractMetaClass* context) +{ + if (context) { + // Replace template variable by the Python Type object + // for the class context in which the variable is used. + code.replace(QLatin1String("%PYTHONTYPEOBJECT"), + cpythonTypeName(context) + QLatin1String(".super.ht_type")); + code.replace(QLatin1String("%TYPE"), wrapperName(context)); + code.replace(QLatin1String("%CPPTYPE"), context->name()); + } + + // replace "toPython" converters + replaceConvertToPythonTypeSystemVariable(code); + + // replace "toCpp" converters + replaceConvertToCppTypeSystemVariable(code); + + // replace "isConvertible" check + replaceIsConvertibleToCppTypeSystemVariable(code); + + // replace "checkType" check + replaceTypeCheckTypeSystemVariable(code); +} + +ShibokenGenerator::ArgumentVarReplacementList ShibokenGenerator::getArgumentReplacement(const AbstractMetaFunction* func, + bool usePyArgs, TypeSystem::Language language, + const AbstractMetaArgument* lastArg) +{ + ArgumentVarReplacementList argReplacements; + TypeSystem::Language convLang = (language == TypeSystem::TargetLangCode) + ? TypeSystem::NativeCode : TypeSystem::TargetLangCode; + int removed = 0; + for (int i = 0; i < func->arguments().size(); ++i) { + const AbstractMetaArgument* arg = func->arguments().at(i); + QString argValue; + if (language == TypeSystem::TargetLangCode) { + bool hasConversionRule = !func->conversionRule(convLang, i+1).isEmpty(); + bool argRemoved = func->argumentRemoved(i+1); + removed = removed + (int) argRemoved; + if (argRemoved && hasConversionRule) + argValue = arg->name() + QLatin1String(CONV_RULE_OUT_VAR_SUFFIX); + else if (argRemoved || (lastArg && arg->argumentIndex() > lastArg->argumentIndex())) + argValue = QLatin1String(CPP_ARG_REMOVED) + QString::number(i); + if (!argRemoved && argValue.isEmpty()) { + int argPos = i - removed; + const AbstractMetaType* type = arg->type(); + QString typeReplaced = func->typeReplaced(arg->argumentIndex() + 1); + if (!typeReplaced.isEmpty()) { + AbstractMetaType* builtType = buildAbstractMetaTypeFromString(typeReplaced); + if (builtType) + type = builtType; + } + if (type->typeEntry()->isCustom()) { + argValue = usePyArgs + ? QString::fromLatin1(PYTHON_ARGS "[%1]").arg(argPos) + : QLatin1String(PYTHON_ARG); + } else { + argValue = hasConversionRule + ? arg->name() + QLatin1String(CONV_RULE_OUT_VAR_SUFFIX) + : QLatin1String(CPP_ARG) + QString::number(argPos); + if (isWrapperType(type)) { + if (type->referenceType() == LValueReference && !isPointer(type)) + argValue.prepend(QLatin1Char('*')); + } + } + } + } else { + argValue = arg->name(); + } + if (!argValue.isEmpty()) + argReplacements << ArgumentVarReplacementPair(arg, argValue); + + } + return argReplacements; +} + +void ShibokenGenerator::writeCodeSnips(QTextStream& s, + const CodeSnipList& codeSnips, + TypeSystem::CodeSnipPosition position, + TypeSystem::Language language, + const AbstractMetaClass* context) +{ + QString code = getCodeSnippets(codeSnips, position, language); + if (code.isEmpty()) + return; + processCodeSnip(code, context); + s << INDENT << "// Begin code injection" << endl; + s << code; + s << INDENT << "// End of code injection" << endl; +} + +static QString msgWrongIndex(const char *varName, const QString &capture, const AbstractMetaFunction *func) +{ + QString result; + QTextStream str(&result); + str << "Wrong index for " << varName << " variable (" << capture << ") on "; + if (const AbstractMetaClass *c = func->implementingClass()) + str << c->name() << "::"; + str << func->signature(); + return result; +} + +void ShibokenGenerator::writeCodeSnips(QTextStream& s, + const CodeSnipList& codeSnips, + TypeSystem::CodeSnipPosition position, + TypeSystem::Language language, + const AbstractMetaFunction* func, + const AbstractMetaArgument* lastArg) +{ + QString code = getCodeSnippets(codeSnips, position, language); + if (code.isEmpty()) + return; + + // Calculate the real number of arguments. + int argsRemoved = 0; + for (int i = 0; i < func->arguments().size(); i++) { + if (func->argumentRemoved(i+1)) + argsRemoved++; + } + + OverloadData od(getFunctionGroups(func->implementingClass())[func->name()], this); + bool usePyArgs = pythonFunctionWrapperUsesListOfArguments(od); + + // Replace %PYARG_# variables. + code.replace(QLatin1String("%PYARG_0"), QLatin1String(PYTHON_RETURN_VAR)); + + static const QRegularExpression pyArgsRegex(QStringLiteral("%PYARG_(\\d+)")); + Q_ASSERT(pyArgsRegex.isValid()); + if (language == TypeSystem::TargetLangCode) { + if (usePyArgs) { + code.replace(pyArgsRegex, QLatin1String(PYTHON_ARGS"[\\1-1]")); + } else { + static const QRegularExpression pyArgsRegexCheck(QStringLiteral("%PYARG_([2-9]+)")); + Q_ASSERT(pyArgsRegexCheck.isValid()); + const QRegularExpressionMatch match = pyArgsRegexCheck.match(code); + if (match.hasMatch()) { + qCWarning(lcShiboken).noquote().nospace() + << msgWrongIndex("%PYARG", match.captured(1), func); + return; + } + code.replace(QLatin1String("%PYARG_1"), QLatin1String(PYTHON_ARG)); + } + } else { + // Replaces the simplest case of attribution to a + // Python argument on the binding virtual method. + static const QRegularExpression pyArgsAttributionRegex(QStringLiteral("%PYARG_(\\d+)\\s*=[^=]\\s*([^;]+)")); + Q_ASSERT(pyArgsAttributionRegex.isValid()); + code.replace(pyArgsAttributionRegex, QLatin1String("PyTuple_SET_ITEM(" PYTHON_ARGS ", \\1-1, \\2)")); + code.replace(pyArgsRegex, QLatin1String("PyTuple_GET_ITEM(" PYTHON_ARGS ", \\1-1)")); + } + + // Replace %ARG#_TYPE variables. + const AbstractMetaArgumentList &arguments = func->arguments(); + for (const AbstractMetaArgument *arg : arguments) { + QString argTypeVar = QStringLiteral("%ARG%1_TYPE").arg(arg->argumentIndex() + 1); + QString argTypeVal = arg->type()->cppSignature(); + code.replace(argTypeVar, argTypeVal); + } + + static const QRegularExpression cppArgTypeRegexCheck(QStringLiteral("%ARG(\\d+)_TYPE")); + Q_ASSERT(cppArgTypeRegexCheck.isValid()); + QRegularExpressionMatchIterator rit = cppArgTypeRegexCheck.globalMatch(code); + while (rit.hasNext()) { + QRegularExpressionMatch match = rit.next(); + qCWarning(lcShiboken).noquote().nospace() + << msgWrongIndex("%ARG#_TYPE", match.captured(1), func); + } + + // Replace template variable for return variable name. + if (func->isConstructor()) { + code.replace(QLatin1String("%0."), QLatin1String("cptr->")); + code.replace(QLatin1String("%0"), QLatin1String("cptr")); + } else if (func->type()) { + QString returnValueOp = isPointerToWrapperType(func->type()) + ? QLatin1String("%1->") : QLatin1String("%1."); + if (ShibokenGenerator::isWrapperType(func->type())) + code.replace(QLatin1String("%0."), returnValueOp.arg(QLatin1String(CPP_RETURN_VAR))); + code.replace(QLatin1String("%0"), QLatin1String(CPP_RETURN_VAR)); + } + + // Replace template variable for self Python object. + QString pySelf = (language == TypeSystem::NativeCode) ? QLatin1String("pySelf") : QLatin1String(PYTHON_SELF_VAR); + code.replace(QLatin1String("%PYSELF"), pySelf); + + // Replace template variable for a pointer to C++ of this object. + if (func->implementingClass()) { + QString replacement = func->isStatic() ? QLatin1String("%1::") : QLatin1String("%1->"); + QString cppSelf; + if (func->isStatic()) + cppSelf = func->ownerClass()->qualifiedCppName(); + else if (language == TypeSystem::NativeCode) + cppSelf = QLatin1String("this"); + else + cppSelf = QLatin1String(CPP_SELF_VAR); + + // On comparison operator CPP_SELF_VAR is always a reference. + if (func->isComparisonOperator()) + replacement = QLatin1String("%1."); + + if (func->isVirtual() && !func->isAbstract() && (!avoidProtectedHack() || !func->isProtected())) { + QString methodCallArgs = getArgumentsFromMethodCall(code); + if (!methodCallArgs.isNull()) { + const QString pattern = QStringLiteral("%CPPSELF.%FUNCTION_NAME(%1)").arg(methodCallArgs); + if (func->name() == QLatin1String("metaObject")) { + QString wrapperClassName = wrapperName(func->ownerClass()); + QString cppSelfVar = avoidProtectedHack() + ? QLatin1String("%CPPSELF") + : QStringLiteral("reinterpret_cast<%1*>(%CPPSELF)").arg(wrapperClassName); + code.replace(pattern, + QString::fromLatin1("(Shiboken::Object::hasCppWrapper(reinterpret_cast<SbkObject*>(%1))" + " ? %2->::%3::%FUNCTION_NAME(%4)" + " : %CPPSELF.%FUNCTION_NAME(%4))").arg(pySelf, cppSelfVar, wrapperClassName, methodCallArgs)); + } else { + code.replace(pattern, + QString::fromLatin1("(Shiboken::Object::hasCppWrapper(reinterpret_cast<SbkObject*>(%1))" + " ? %CPPSELF->::%TYPE::%FUNCTION_NAME(%2)" + " : %CPPSELF.%FUNCTION_NAME(%2))").arg(pySelf, methodCallArgs)); + } + } + } + + code.replace(QLatin1String("%CPPSELF."), replacement.arg(cppSelf)); + code.replace(QLatin1String("%CPPSELF"), cppSelf); + + if (code.indexOf(QLatin1String("%BEGIN_ALLOW_THREADS")) > -1) { + if (code.count(QLatin1String("%BEGIN_ALLOW_THREADS")) == code.count(QLatin1String("%END_ALLOW_THREADS"))) { + code.replace(QLatin1String("%BEGIN_ALLOW_THREADS"), QLatin1String(BEGIN_ALLOW_THREADS)); + code.replace(QLatin1String("%END_ALLOW_THREADS"), QLatin1String(END_ALLOW_THREADS)); + } else { + qCWarning(lcShiboken) << "%BEGIN_ALLOW_THREADS and %END_ALLOW_THREADS mismatch"; + } + } + + // replace template variable for the Python Type object for the + // class implementing the method in which the code snip is written + if (func->isStatic()) { + code.replace(QLatin1String("%PYTHONTYPEOBJECT"), + cpythonTypeName(func->implementingClass()) + QLatin1String(".super.ht_type")); + } else { + code.replace(QLatin1String("%PYTHONTYPEOBJECT."), pySelf + QLatin1String("->ob_type->")); + code.replace(QLatin1String("%PYTHONTYPEOBJECT"), pySelf + QLatin1String("->ob_type")); + } + } + + // Replaces template %ARGUMENT_NAMES and %# variables by argument variables and values. + // Replaces template variables %# for individual arguments. + const ArgumentVarReplacementList &argReplacements = getArgumentReplacement(func, usePyArgs, language, lastArg); + + QStringList args; + for (const ArgumentVarReplacementPair &pair : argReplacements) { + if (pair.second.startsWith(QLatin1String(CPP_ARG_REMOVED))) + continue; + args << pair.second; + } + code.replace(QLatin1String("%ARGUMENT_NAMES"), args.join(QLatin1String(", "))); + + for (const ArgumentVarReplacementPair &pair : argReplacements) { + const AbstractMetaArgument* arg = pair.first; + int idx = arg->argumentIndex() + 1; + AbstractMetaType* type = arg->type(); + QString typeReplaced = func->typeReplaced(arg->argumentIndex() + 1); + if (!typeReplaced.isEmpty()) { + AbstractMetaType* builtType = buildAbstractMetaTypeFromString(typeReplaced); + if (builtType) + type = builtType; + } + if (isWrapperType(type)) { + QString replacement = pair.second; + if (type->referenceType() == LValueReference && !isPointer(type)) + replacement.remove(0, 1); + if (type->referenceType() == LValueReference || isPointer(type)) + code.replace(QString::fromLatin1("%%1.").arg(idx), replacement + QLatin1String("->")); + } + code.replace(placeHolderRegex(idx), pair.second); + } + + if (language == TypeSystem::NativeCode) { + // Replaces template %PYTHON_ARGUMENTS variable with a pointer to the Python tuple + // containing the converted virtual method arguments received from C++ to be passed + // to the Python override. + code.replace(QLatin1String("%PYTHON_ARGUMENTS"), QLatin1String(PYTHON_ARGS)); + + // replace variable %PYTHON_METHOD_OVERRIDE for a pointer to the Python method + // override for the C++ virtual method in which this piece of code was inserted + code.replace(QLatin1String("%PYTHON_METHOD_OVERRIDE"), QLatin1String(PYTHON_OVERRIDE_VAR)); + } + + if (avoidProtectedHack()) { + // If the function being processed was added by the user via type system, + // Shiboken needs to find out if there are other overloads for the same method + // name and if any of them is of the protected visibility. This is used to replace + // calls to %FUNCTION_NAME on user written custom code for calls to the protected + // dispatcher. + bool hasProtectedOverload = false; + if (func->isUserAdded()) { + const AbstractMetaFunctionList &funcs = getFunctionOverloads(func->ownerClass(), func->name()); + for (const AbstractMetaFunction *f : funcs) + hasProtectedOverload |= f->isProtected(); + } + + if (func->isProtected() || hasProtectedOverload) { + code.replace(QLatin1String("%TYPE::%FUNCTION_NAME"), + QStringLiteral("%1::%2_protected") + .arg(wrapperName(func->ownerClass()), func->originalName())); + code.replace(QLatin1String("%FUNCTION_NAME"), + func->originalName() + QLatin1String("_protected")); + } + } + + if (func->isConstructor() && shouldGenerateCppWrapper(func->ownerClass())) + code.replace(QLatin1String("%TYPE"), wrapperName(func->ownerClass())); + + if (func->ownerClass()) + code.replace(QLatin1String("%CPPTYPE"), func->ownerClass()->name()); + + replaceTemplateVariables(code, func); + + processCodeSnip(code); + s << INDENT << "// Begin code injection" << endl; + s << code; + s << INDENT << "// End of code injection" << endl; +} + +// Returns true if the string is an expression, +// and false if it is a variable. +static bool isVariable(const QString& code) +{ + static const QRegularExpression expr(QStringLiteral("^\\s*\\*?\\s*[A-Za-z_][A-Za-z_0-9.]*\\s*(?:\\[[^\\[]+\\])*$")); + Q_ASSERT(expr.isValid()); + return expr.match(code.trimmed()).hasMatch(); +} + +// A miniature normalizer that puts a type string into a format +// suitable for comparison with AbstractMetaType::cppSignature() +// result. +static QString miniNormalizer(const QString& varType) +{ + QString normalized = varType.trimmed(); + if (normalized.isEmpty()) + return normalized; + if (normalized.startsWith(QLatin1String("::"))) + normalized.remove(0, 2); + QString suffix; + while (normalized.endsWith(QLatin1Char('*')) || normalized.endsWith(QLatin1Char('&'))) { + suffix.prepend(normalized.at(normalized.count() - 1)); + normalized.chop(1); + normalized = normalized.trimmed(); + } + const QString result = normalized + QLatin1Char(' ') + suffix; + return result.trimmed(); +} +// The position must indicate the first character after the opening '('. +// ATTENTION: do not modify this function to trim any resulting string! +// This must be done elsewhere. +static QString getConverterTypeSystemVariableArgument(const QString& code, int pos) +{ + QString arg; + int parenthesisDepth = 0; + int count = 0; + while (pos + count < code.count()) { + char c = code.at(pos+count).toLatin1(); // toAscii is gone + if (c == '(') { + ++parenthesisDepth; + } else if (c == ')') { + if (parenthesisDepth == 0) { + arg = code.mid(pos, count).trimmed(); + break; + } + --parenthesisDepth; + } + ++count; + } + if (parenthesisDepth != 0) + qFatal("Unbalanced parenthesis on type system converter variable call."); + return arg; +} +typedef QPair<QString, QString> StringPair; +void ShibokenGenerator::replaceConverterTypeSystemVariable(TypeSystemConverterVariable converterVariable, QString& code) +{ + QVector<StringPair> replacements; + QRegularExpressionMatchIterator rit = m_typeSystemConvRegEx[converterVariable].globalMatch(code); + while (rit.hasNext()) { + const QRegularExpressionMatch match = rit.next(); + const QStringList list = match.capturedTexts(); + QString conversionString = list.first(); + QString conversionTypeName = list.last(); + const AbstractMetaType* conversionType = buildAbstractMetaTypeFromString(conversionTypeName); + if (!conversionType) { + qFatal(qPrintable(QString::fromLatin1("Could not find type '%1' for use in '%2' conversion. " + "Make sure to use the full C++ name, e.g. 'Namespace::Class'.") + .arg(conversionTypeName).arg(m_typeSystemConvName[converterVariable])), NULL); + + } + QString conversion; + QTextStream c(&conversion); + switch (converterVariable) { + case TypeSystemToCppFunction: { + int end = match.capturedStart(); + int start = end; + while (start > 0 && code.at(start) != QLatin1Char('\n')) + --start; + while (code.at(start).isSpace()) + ++start; + QString varType = code.mid(start, end - start); + conversionString = varType + list.first(); + varType = miniNormalizer(varType); + QString varName = list.at(1).trimmed(); + if (!varType.isEmpty()) { + if (varType != conversionType->cppSignature()) { + qFatal(qPrintable(QString::fromLatin1("Types of receiver variable ('%1') and %CONVERTTOCPP type system variable ('%2') differ.") + .arg(varType, conversionType->cppSignature())), NULL); + } + c << getFullTypeName(conversionType) << ' ' << varName; + writeMinimalConstructorExpression(c, conversionType); + c << ';' << endl; + Indentation indent(INDENT); + c << INDENT; + } + c << cpythonToCppConversionFunction(conversionType); + QString prefix; + if (varName.startsWith(QLatin1Char('*'))) { + varName.remove(0, 1); + varName = varName.trimmed(); + } else { + prefix = QLatin1Char('&'); + } + QString arg = getConverterTypeSystemVariableArgument(code, match.capturedEnd()); + conversionString += arg; + c << arg << ", " << prefix << '(' << varName << ')'; + break; + } + case TypeSystemCheckFunction: + conversion = cpythonCheckFunction(conversionType); + if (conversionType->typeEntry()->isPrimitive() + && (conversionType->typeEntry()->name() == QLatin1String("PyObject") + || !conversion.endsWith(QLatin1Char(' ')))) { + c << '('; + break; + } + case TypeSystemIsConvertibleFunction: + if (conversion.isEmpty()) + conversion = cpythonIsConvertibleFunction(conversionType); + case TypeSystemToPythonFunction: + if (conversion.isEmpty()) + conversion = cpythonToPythonConversionFunction(conversionType); + default: { + QString arg = getConverterTypeSystemVariableArgument(code, match.capturedEnd()); + conversionString += arg; + if (converterVariable == TypeSystemToPythonFunction && !isVariable(arg)) { + qFatal(qPrintable(QString::fromLatin1("Only variables are acceptable as argument to %%CONVERTTOPYTHON type system variable on code snippet: '%1'") + .arg(code)), NULL); + } + if (conversion.contains(QLatin1String("%in"))) { + conversion.prepend(QLatin1Char('(')); + conversion.replace(QLatin1String("%in"), arg); + } else { + c << arg; + } + } + } + replacements.append(qMakePair(conversionString, conversion)); + } + for (const StringPair &rep : qAsConst(replacements)) + code.replace(rep.first, rep.second); +} + +bool ShibokenGenerator::injectedCodeUsesCppSelf(const AbstractMetaFunction* func) +{ + CodeSnipList snips = func->injectedCodeSnips(TypeSystem::CodeSnipPositionAny, TypeSystem::TargetLangCode); + for (const CodeSnip &snip : qAsConst(snips)) { + if (snip.code().contains(QLatin1String("%CPPSELF"))) + return true; + } + return false; +} + +bool ShibokenGenerator::injectedCodeUsesPySelf(const AbstractMetaFunction* func) +{ + CodeSnipList snips = func->injectedCodeSnips(TypeSystem::CodeSnipPositionAny, TypeSystem::NativeCode); + for (const CodeSnip &snip : qAsConst(snips)) { + if (snip.code().contains(QLatin1String("%PYSELF"))) + return true; + } + return false; +} + +bool ShibokenGenerator::injectedCodeCallsCppFunction(const AbstractMetaFunction* func) +{ + QString funcCall = func->originalName() + QLatin1Char('('); + QString wrappedCtorCall; + if (func->isConstructor()) { + funcCall.prepend(QLatin1String("new ")); + wrappedCtorCall = QStringLiteral("new %1(").arg(wrapperName(func->ownerClass())); + } + CodeSnipList snips = func->injectedCodeSnips(TypeSystem::CodeSnipPositionAny, TypeSystem::TargetLangCode); + for (const CodeSnip &snip : qAsConst(snips)) { + if (snip.code().contains(QLatin1String("%FUNCTION_NAME(")) || snip.code().contains(funcCall) + || (func->isConstructor() + && ((func->ownerClass()->isPolymorphic() && snip.code().contains(wrappedCtorCall)) + || snip.code().contains(QLatin1String("new %TYPE(")))) + ) + return true; + } + return false; +} + +bool ShibokenGenerator::injectedCodeCallsPythonOverride(const AbstractMetaFunction* func) +{ + static const QRegularExpression overrideCallRegexCheck(QStringLiteral("PyObject_Call\\s*\\(\\s*%PYTHON_METHOD_OVERRIDE\\s*,")); + Q_ASSERT(overrideCallRegexCheck.isValid()); + CodeSnipList snips = func->injectedCodeSnips(TypeSystem::CodeSnipPositionAny, TypeSystem::NativeCode); + for (const CodeSnip &snip : qAsConst(snips)) { + if (snip.code().contains(overrideCallRegexCheck)) + return true; + } + return false; +} + +bool ShibokenGenerator::injectedCodeHasReturnValueAttribution(const AbstractMetaFunction* func, TypeSystem::Language language) +{ + static const QRegularExpression retValAttributionRegexCheck_native(QStringLiteral("%0\\s*=[^=]\\s*.+")); + Q_ASSERT(retValAttributionRegexCheck_native.isValid()); + static const QRegularExpression retValAttributionRegexCheck_target(QStringLiteral("%PYARG_0\\s*=[^=]\\s*.+")); + Q_ASSERT(retValAttributionRegexCheck_target.isValid()); + CodeSnipList snips = func->injectedCodeSnips(TypeSystem::CodeSnipPositionAny, language); + for (const CodeSnip &snip : qAsConst(snips)) { + if (language == TypeSystem::TargetLangCode) { + if (snip.code().contains(retValAttributionRegexCheck_target)) + return true; + } else { + if (snip.code().contains(retValAttributionRegexCheck_native)) + return true; + } + } + return false; +} + +bool ShibokenGenerator::injectedCodeUsesArgument(const AbstractMetaFunction* func, int argumentIndex) +{ + CodeSnipList snips = func->injectedCodeSnips(TypeSystem::CodeSnipPositionAny); + const QRegularExpression argRegEx = placeHolderRegex(argumentIndex + 1); + for (const CodeSnip &snip : qAsConst(snips)) { + QString code = snip.code(); + if (code.contains(QLatin1String("%ARGUMENT_NAMES")) || code.contains(argRegEx)) + return true; + } + return false; +} + +bool ShibokenGenerator::hasMultipleInheritanceInAncestry(const AbstractMetaClass* metaClass) +{ + if (!metaClass || metaClass->baseClassNames().isEmpty()) + return false; + if (metaClass->baseClassNames().size() > 1) + return true; + return hasMultipleInheritanceInAncestry(metaClass->baseClass()); +} + +typedef QMap<QString, AbstractMetaFunctionList> FunctionGroupMap; +typedef FunctionGroupMap::const_iterator FunctionGroupMapIt; + +bool ShibokenGenerator::classNeedsGetattroFunction(const AbstractMetaClass* metaClass) +{ + if (!metaClass) + return false; + if (metaClass->typeEntry()->isSmartPointer()) + return true; + const FunctionGroupMap &functionGroup = getFunctionGroups(metaClass); + for (FunctionGroupMapIt it = functionGroup.cbegin(), end = functionGroup.cend(); it != end; ++it) { + AbstractMetaFunctionList overloads; + for (AbstractMetaFunction *func : qAsConst(it.value())) { + if (func->isAssignmentOperator() || func->isCastOperator() || func->isModifiedRemoved() + || func->isPrivate() || func->ownerClass() != func->implementingClass() + || func->isConstructor() || func->isOperatorOverload()) + continue; + overloads.append(func); + } + if (overloads.isEmpty()) + continue; + if (OverloadData::hasStaticAndInstanceFunctions(overloads)) + return true; + } + return false; +} + +bool ShibokenGenerator::classNeedsSetattroFunction(const AbstractMetaClass *metaClass) +{ + if (!metaClass) + return false; + if (metaClass->typeEntry()->isSmartPointer()) + return true; + return false; +} + +AbstractMetaFunctionList ShibokenGenerator::getMethodsWithBothStaticAndNonStaticMethods(const AbstractMetaClass* metaClass) +{ + AbstractMetaFunctionList methods; + if (metaClass) { + const FunctionGroupMap &functionGroups = getFunctionGroups(metaClass); + for (FunctionGroupMapIt it = functionGroups.cbegin(), end = functionGroups.cend(); it != end; ++it) { + AbstractMetaFunctionList overloads; + for (AbstractMetaFunction *func : qAsConst(it.value())) { + if (func->isAssignmentOperator() || func->isCastOperator() || func->isModifiedRemoved() + || func->isPrivate() || func->ownerClass() != func->implementingClass() + || func->isConstructor() || func->isOperatorOverload()) + continue; + overloads.append(func); + } + if (overloads.isEmpty()) + continue; + if (OverloadData::hasStaticAndInstanceFunctions(overloads)) + methods.append(overloads.first()); + } + } + return methods; +} + +AbstractMetaClassList ShibokenGenerator::getBaseClasses(const AbstractMetaClass* metaClass) const +{ + AbstractMetaClassList baseClasses; + if (metaClass) { + const QStringList &baseClassNames = metaClass->baseClassNames(); + for (const QString &parent : baseClassNames) { + AbstractMetaClass *clazz = AbstractMetaClass::findClass(classes(), parent); + if (clazz) + baseClasses << clazz; + } + } + return baseClasses; +} + +const AbstractMetaClass* ShibokenGenerator::getMultipleInheritingClass(const AbstractMetaClass* metaClass) +{ + if (!metaClass || metaClass->baseClassNames().isEmpty()) + return 0; + if (metaClass->baseClassNames().size() > 1) + return metaClass; + return getMultipleInheritingClass(metaClass->baseClass()); +} + +AbstractMetaClassList ShibokenGenerator::getAllAncestors(const AbstractMetaClass* metaClass) const +{ + AbstractMetaClassList result; + if (metaClass) { + AbstractMetaClassList baseClasses = getBaseClasses(metaClass); + for (AbstractMetaClass *base : qAsConst(baseClasses)) { + result.append(base); + result.append(getAllAncestors(base)); + } + } + return result; +} + +QString ShibokenGenerator::getModuleHeaderFileName(const QString& moduleName) const +{ + QString result = moduleName.isEmpty() ? packageName() : moduleName; + result.replace(QLatin1Char('.'), QLatin1Char('_')); + return result.toLower() + QLatin1String("_python.h"); +} + +QString ShibokenGenerator::extendedIsConvertibleFunctionName(const TypeEntry* targetType) const +{ + QString p = targetType->targetLangPackage(); + p.replace(QLatin1Char('.'), QLatin1Char('_')); + return QStringLiteral("ExtendedIsConvertible_%1_%2").arg(p, targetType->name()); +} + +QString ShibokenGenerator::extendedToCppFunctionName(const TypeEntry* targetType) const +{ + QString p = targetType->targetLangPackage(); + p.replace(QLatin1Char('.'), QLatin1Char('_')); + return QStringLiteral("ExtendedToCpp_%1_%2").arg(p, targetType->name()); +} + +bool ShibokenGenerator::isCopyable(const AbstractMetaClass *metaClass) + +{ + if (metaClass->isNamespace() || isObjectType(metaClass)) + return false; + else if (metaClass->typeEntry()->copyable() == ComplexTypeEntry::Unknown) + return metaClass->hasCloneOperator(); + else + return (metaClass->typeEntry()->copyable() == ComplexTypeEntry::CopyableSet); + + return false; +} + +AbstractMetaType* ShibokenGenerator::buildAbstractMetaTypeFromString(QString typeSignature) +{ + typeSignature = typeSignature.trimmed(); + if (typeSignature.startsWith(QLatin1String("::"))) + typeSignature.remove(0, 2); + + if (m_metaTypeFromStringCache.contains(typeSignature)) + return m_metaTypeFromStringCache.value(typeSignature); + + QString typeString = typeSignature; + bool isConst = typeString.startsWith(QLatin1String("const ")); + if (isConst) + typeString.remove(0, sizeof("const ") / sizeof(char) - 1); + + ReferenceType refType = NoReference; + if (typeString.endsWith(QLatin1String("&&"))) { + refType = RValueReference; + typeString.chop(2); + typeString = typeString.trimmed(); + } else if (typeString.endsWith(QLatin1Char('&'))) { + refType = LValueReference; + typeString.chop(1); + typeString = typeString.trimmed(); + } + + int indirections = 0; + while (typeString.endsWith(QLatin1Char('*'))) { + ++indirections; + typeString.chop(1); + typeString = typeString.trimmed(); + } + + if (typeString.startsWith(QLatin1String("::"))) + typeString.remove(0, 2); + + QString adjustedTypeName = typeString; + QStringList instantiatedTypes; + int lpos = typeString.indexOf(QLatin1Char('<')); + if (lpos > -1) { + int rpos = typeString.lastIndexOf(QLatin1Char('>')); + if ((lpos != -1) && (rpos != -1)) { + QString type = typeString.mid(lpos + 1, rpos - lpos - 1); + int depth = 0; + int start = 0; + for (int i = 0; i < type.count(); ++i) { + if (type.at(i) == QLatin1Char('<')) { + ++depth; + } else if (type.at(i) == QLatin1Char('>')) { + --depth; + } else if (type.at(i) == QLatin1Char(',') && depth == 0) { + instantiatedTypes << type.mid(start, i - start).trimmed(); + start = i + 1; + } + } + instantiatedTypes << type.mid(start).trimmed(); + adjustedTypeName.truncate(lpos); + } + } + + TypeEntry* typeEntry = TypeDatabase::instance()->findType(adjustedTypeName); + + AbstractMetaType* metaType = 0; + if (typeEntry) { + metaType = new AbstractMetaType(); + metaType->setTypeEntry(typeEntry); + metaType->setIndirections(indirections); + metaType->setReferenceType(refType); + metaType->setConstant(isConst); + metaType->setTypeUsagePattern(AbstractMetaType::ContainerPattern); + for (const QString &instantiation : qAsConst(instantiatedTypes)) { + AbstractMetaType* tmplArgType = buildAbstractMetaTypeFromString(instantiation); + metaType->addInstantiation(tmplArgType); + } + metaType->decideUsagePattern(); + m_metaTypeFromStringCache.insert(typeSignature, metaType); + } + return metaType; +} + +AbstractMetaType* ShibokenGenerator::buildAbstractMetaTypeFromTypeEntry(const TypeEntry* typeEntry) +{ + QString typeName = typeEntry->qualifiedCppName(); + if (typeName.startsWith(QLatin1String("::"))) + typeName.remove(0, 2); + if (m_metaTypeFromStringCache.contains(typeName)) + return m_metaTypeFromStringCache.value(typeName); + AbstractMetaType* metaType = new AbstractMetaType; + metaType->setTypeEntry(typeEntry); + metaType->setIndirections(0); + metaType->setReferenceType(NoReference); + metaType->setConstant(false); + metaType->decideUsagePattern(); + m_metaTypeFromStringCache.insert(typeName, metaType); + return metaType; +} +AbstractMetaType* ShibokenGenerator::buildAbstractMetaTypeFromAbstractMetaClass(const AbstractMetaClass* metaClass) +{ + return ShibokenGenerator::buildAbstractMetaTypeFromTypeEntry(metaClass->typeEntry()); +} + +/* +static void dumpFunction(AbstractMetaFunctionList lst) +{ + qDebug() << "DUMP FUNCTIONS: "; + for (AbstractMetaFunction *func : qAsConst(lst)) + qDebug() << "*" << func->ownerClass()->name() + << func->signature() + << "Private: " << func->isPrivate() + << "Empty: " << func->isEmptyFunction() + << "Static:" << func->isStatic() + << "Signal:" << func->isSignal() + << "ClassImplements: " << (func->ownerClass() != func->implementingClass()) + << "is operator:" << func->isOperatorOverload() + << "is global:" << func->isInGlobalScope(); +} +*/ + +static bool isGroupable(const AbstractMetaFunction* func) +{ + if (func->isSignal() || func->isDestructor() || (func->isModifiedRemoved() && !func->isAbstract())) + return false; + // weird operator overloads + if (func->name() == QLatin1String("operator[]") || func->name() == QLatin1String("operator->")) // FIXME: what about cast operators? + return false;; + return true; +} + +QMap< QString, AbstractMetaFunctionList > ShibokenGenerator::getFunctionGroups(const AbstractMetaClass* scope) +{ + AbstractMetaFunctionList lst = scope ? scope->functions() : globalFunctions(); + + QMap<QString, AbstractMetaFunctionList> results; + for (AbstractMetaFunction *func : qAsConst(lst)) { + if (isGroupable(func)) + results[func->name()].append(func); + } + return results; +} + +AbstractMetaFunctionList ShibokenGenerator::getInheritedOverloads(const AbstractMetaFunction *func, QSet<QString> *seen) +{ + AbstractMetaFunctionList results; + AbstractMetaClass* basis; + if (func->ownerClass() && (basis = func->ownerClass()->baseClass(), basis)) { + for (; basis; basis = basis->baseClass()) { + const AbstractMetaFunction* inFunc = basis->findFunction(func->name()); + if (inFunc && !seen->contains(inFunc->minimalSignature())) { + seen->insert(inFunc->minimalSignature()); + AbstractMetaFunction* newFunc = inFunc->copy(); + newFunc->setImplementingClass(func->implementingClass()); + results << newFunc; + } + } + } + return results; +} + +AbstractMetaFunctionList ShibokenGenerator::getFunctionAndInheritedOverloads(const AbstractMetaFunction *func, QSet<QString> *seen) +{ + AbstractMetaFunctionList results; + seen->insert(func->minimalSignature()); + results << const_cast<AbstractMetaFunction *>(func) << getInheritedOverloads(func, seen); + return results; +} + +AbstractMetaFunctionList ShibokenGenerator::getFunctionOverloads(const AbstractMetaClass* scope, const QString& functionName) +{ + AbstractMetaFunctionList lst = scope ? scope->functions() : globalFunctions(); + + AbstractMetaFunctionList results; + QSet<QString> seenSignatures; + for (AbstractMetaFunction *func : qAsConst(lst)) { + if (func->name() != functionName) + continue; + if (isGroupable(func)) { + // PYSIDE-331: look also into base classes. + results << getFunctionAndInheritedOverloads(func, &seenSignatures); + } + } + return results; +} + +QPair< int, int > ShibokenGenerator::getMinMaxArguments(const AbstractMetaFunction* metaFunction) +{ + AbstractMetaFunctionList overloads = getFunctionOverloads(metaFunction->ownerClass(), metaFunction->name()); + + int minArgs = std::numeric_limits<int>::max(); + int maxArgs = 0; + for (const AbstractMetaFunction* func : qAsConst(overloads)) { + int numArgs = 0; + const AbstractMetaArgumentList &arguments = func->arguments(); + for (const AbstractMetaArgument *arg : arguments) { + if (!func->argumentRemoved(arg->argumentIndex() + 1)) + numArgs++; + } + maxArgs = std::max(maxArgs, numArgs); + minArgs = std::min(minArgs, numArgs); + } + return qMakePair(minArgs, maxArgs); +} + +QMap<QString, QString> ShibokenGenerator::options() const +{ + QMap<QString, QString> opts(Generator::options()); + opts.insert(QLatin1String(AVOID_PROTECTED_HACK), + QLatin1String("Avoid the use of the '#define protected public' hack.")); + opts.insert(QLatin1String(PARENT_CTOR_HEURISTIC), + QLatin1String("Enable heuristics to detect parent relationship on constructors.")); + opts.insert(QLatin1String(RETURN_VALUE_HEURISTIC), + QLatin1String("Enable heuristics to detect parent relationship on return values (USE WITH CAUTION!)")); + opts.insert(QLatin1String(ENABLE_PYSIDE_EXTENSIONS), + QLatin1String("Enable PySide extensions, such as support for signal/slots, use this if you are creating a binding for a Qt-based library.")); + opts.insert(QLatin1String(DISABLE_VERBOSE_ERROR_MESSAGES), + QLatin1String("Disable verbose error messages. Turn the python code hard to debug but safe few kB on the generated bindings.")); + opts.insert(QLatin1String(USE_ISNULL_AS_NB_NONZERO), + QLatin1String("If a class have an isNull()const method, it will be used to compute the value of boolean casts")); + return opts; +} + +static void getCode(QStringList& code, const CodeSnipList& codeSnips) +{ + for (const CodeSnip &snip : qAsConst(codeSnips)) + code.append(snip.code()); +} + +static void getCode(QStringList& code, const TypeEntry* type) +{ + getCode(code, type->codeSnips()); + + CustomConversion* customConversion = type->customConversion(); + if (!customConversion) + return; + + if (!customConversion->nativeToTargetConversion().isEmpty()) + code.append(customConversion->nativeToTargetConversion()); + + const CustomConversion::TargetToNativeConversions& toCppConversions = customConversion->targetToNativeConversions(); + if (toCppConversions.isEmpty()) + return; + + for (CustomConversion::TargetToNativeConversion *toNative : qAsConst(toCppConversions)) + code.append(toNative->conversion()); +} + +bool ShibokenGenerator::doSetup(const QMap<QString, QString>& args) +{ + m_useCtorHeuristic = args.contains(QLatin1String(PARENT_CTOR_HEURISTIC)); + m_usePySideExtensions = args.contains(QLatin1String(ENABLE_PYSIDE_EXTENSIONS)); + m_userReturnValueHeuristic = args.contains(QLatin1String(RETURN_VALUE_HEURISTIC)); + m_verboseErrorMessagesDisabled = args.contains(QLatin1String(DISABLE_VERBOSE_ERROR_MESSAGES)); + m_useIsNullAsNbNonZero = args.contains(QLatin1String(USE_ISNULL_AS_NB_NONZERO)); + m_avoidProtectedHack = args.contains(QLatin1String(AVOID_PROTECTED_HACK)); + + TypeDatabase* td = TypeDatabase::instance(); + QStringList snips; + const PrimitiveTypeEntryList &primitiveTypeList = primitiveTypes(); + for (const PrimitiveTypeEntry *type : primitiveTypeList) + getCode(snips, type); + const ContainerTypeEntryList &containerTypeList = containerTypes(); + for (const ContainerTypeEntry *type : containerTypeList) + getCode(snips, type); + const AbstractMetaClassList &classList = classes(); + for (const AbstractMetaClass *metaClass : classList) + getCode(snips, metaClass->typeEntry()); + getCode(snips, td->findType(packageName())); + const FunctionGroupMap &functionGroups = getFunctionGroups(); + for (FunctionGroupMapIt it = functionGroups.cbegin(), end = functionGroups.cend(); it != end; ++it) { + for (AbstractMetaFunction *func : it.value()) + getCode(snips, func->injectedCodeSnips()); + } + + for (const QString &code : qAsConst(snips)) { + collectContainerTypesFromConverterMacros(code, true); + collectContainerTypesFromConverterMacros(code, false); + } + + return true; +} + +void ShibokenGenerator::collectContainerTypesFromConverterMacros(const QString& code, bool toPythonMacro) +{ + QString convMacro = toPythonMacro ? QLatin1String("%CONVERTTOPYTHON[") : QLatin1String("%CONVERTTOCPP["); + int offset = toPythonMacro ? sizeof("%CONVERTTOPYTHON") : sizeof("%CONVERTTOCPP"); + int start = 0; + while ((start = code.indexOf(convMacro, start)) != -1) { + int end = code.indexOf(QLatin1Char(']'), start); + start += offset; + if (code.at(start) != QLatin1Char('%')) { + QString typeString = code.mid(start, end - start); + AbstractMetaType* type = buildAbstractMetaTypeFromString(typeString); + addInstantiatedContainersAndSmartPointers(type, type->originalTypeDescription()); + } + start = end; + } +} + +bool ShibokenGenerator::useCtorHeuristic() const +{ + return m_useCtorHeuristic; +} + +bool ShibokenGenerator::useReturnValueHeuristic() const +{ + return m_userReturnValueHeuristic; +} + +bool ShibokenGenerator::usePySideExtensions() const +{ + return m_usePySideExtensions; +} + +bool ShibokenGenerator::useIsNullAsNbNonZero() const +{ + return m_useIsNullAsNbNonZero; +} + +bool ShibokenGenerator::avoidProtectedHack() const +{ + return m_avoidProtectedHack; +} + +QString ShibokenGenerator::cppApiVariableName(const QString& moduleName) const +{ + QString result = moduleName.isEmpty() ? ShibokenGenerator::packageName() : moduleName; + result.replace(QLatin1Char('.'), QLatin1Char('_')); + result.prepend(QLatin1String("Sbk")); + result.append(QLatin1String("Types")); + return result; +} + +QString ShibokenGenerator::convertersVariableName(const QString& moduleName) const +{ + QString result = cppApiVariableName(moduleName); + result.chop(1); + result.append(QLatin1String("Converters")); + return result; +} + +static QString processInstantiationsVariableName(const AbstractMetaType* type) +{ + QString res = QLatin1Char('_') + _fixedCppTypeName(type->typeEntry()->qualifiedCppName()).toUpper(); + const AbstractMetaTypeList &instantiations = type->instantiations(); + for (const AbstractMetaType *instantiation : instantiations) { + res += instantiation->isContainer() + ? processInstantiationsVariableName(instantiation) + : QLatin1Char('_') + _fixedCppTypeName(instantiation->cppSignature()).toUpper(); + } + return res; +} +QString ShibokenGenerator::getTypeIndexVariableName(const AbstractMetaClass* metaClass, bool alternativeTemplateName) +{ + if (alternativeTemplateName) { + const AbstractMetaClass* templateBaseClass = metaClass->templateBaseClass(); + if (!templateBaseClass) + return QString(); + QString base = _fixedCppTypeName(templateBaseClass->typeEntry()->qualifiedCppName()).toUpper(); + QString instantiations; + const AbstractMetaTypeList &templateBaseClassInstantiations = metaClass->templateBaseClassInstantiations(); + for (const AbstractMetaType *instantiation : templateBaseClassInstantiations) + instantiations += processInstantiationsVariableName(instantiation); + return QString::fromLatin1("SBK_%1%2_IDX").arg(base, instantiations); + } + return getTypeIndexVariableName(metaClass->typeEntry()); +} +QString ShibokenGenerator::getTypeIndexVariableName(const TypeEntry* type) +{ + if (type->isCppPrimitive()) { + const PrimitiveTypeEntry* trueType = (const PrimitiveTypeEntry*) type; + if (trueType->basicReferencedTypeEntry()) + type = trueType->basicReferencedTypeEntry(); + } + return QString::fromLatin1("SBK_%1_IDX").arg(_fixedCppTypeName(type->qualifiedCppName()).toUpper()); +} +QString ShibokenGenerator::getTypeIndexVariableName(const AbstractMetaType* type) +{ + return QString::fromLatin1("SBK%1%2_IDX") + .arg(type->typeEntry()->isContainer() ? QLatin1Char('_') + moduleName().toUpper() : QString(), + processInstantiationsVariableName(type)); +} + +bool ShibokenGenerator::verboseErrorMessagesDisabled() const +{ + return m_verboseErrorMessagesDisabled; +} + +bool ShibokenGenerator::pythonFunctionWrapperUsesListOfArguments(const OverloadData& overloadData) +{ + if (overloadData.referenceFunction()->isCallOperator()) + return true; + if (overloadData.referenceFunction()->isOperatorOverload()) + return false; + int maxArgs = overloadData.maxArgs(); + int minArgs = overloadData.minArgs(); + return (minArgs != maxArgs) + || (maxArgs > 1) + || overloadData.referenceFunction()->isConstructor() + || overloadData.hasArgumentWithDefaultValue(); +} + +Generator::Options ShibokenGenerator::getConverterOptions(const AbstractMetaType* metaType) +{ + // exclude const on Objects + Options flags; + const TypeEntry* type = metaType->typeEntry(); + bool isCStr = isCString(metaType); + if (metaType->indirections() && !isCStr) { + flags = ExcludeConst; + } else if (metaType->isContainer() + || (type->isPrimitive() && !isCStr) + // const refs become just the value, but pure refs must remain pure. + || (type->isValue() && metaType->isConstant() && metaType->referenceType() == LValueReference)) { + flags = ExcludeConst | ExcludeReference; + } + return flags; +} + +QString ShibokenGenerator::getDefaultValue(const AbstractMetaFunction* func, const AbstractMetaArgument* arg) +{ + if (!arg->defaultValueExpression().isEmpty()) + return arg->defaultValueExpression(); + + //Check modifications + const FunctionModificationList &mods = func->modifications(); + for (const FunctionModification &m : mods) { + for (const ArgumentModification &am : m.argument_mods) { + if (am.index == (arg->argumentIndex() + 1)) + return am.replacedDefaultExpression; + } + } + return QString(); +} + +void ShibokenGenerator::writeMinimalConstructorExpression(QTextStream& s, const AbstractMetaType* type, const QString& defaultCtor) +{ + if (defaultCtor.isEmpty() && isCppPrimitive(type)) + return; + QString ctor = defaultCtor.isEmpty() ? minimalConstructor(type) : defaultCtor; + if (ctor.isEmpty()) { + const QString message = msgCouldNotFindMinimalConstructor(QLatin1String(__FUNCTION__), type->cppSignature()); + qCWarning(lcShiboken()).noquote() << message; + s << ";\n#error " << message << '\n'; + } else { + s << " = " << ctor; + } +} + +void ShibokenGenerator::writeMinimalConstructorExpression(QTextStream& s, const TypeEntry* type, const QString& defaultCtor) +{ + if (defaultCtor.isEmpty() && isCppPrimitive(type)) + return; + QString ctor = defaultCtor.isEmpty() ? minimalConstructor(type) : defaultCtor; + + if (ctor.isEmpty()) { + const QString message = msgCouldNotFindMinimalConstructor(QLatin1String(__FUNCTION__), type->qualifiedCppName()); + qCWarning(lcShiboken()).noquote() << message; + s << ";\n#error " << message << endl; + } else { + s << " = " << ctor; + } +} + +bool ShibokenGenerator::isCppIntegralPrimitive(const TypeEntry* type) +{ + if (!type->isCppPrimitive()) + return false; + const PrimitiveTypeEntry* trueType = (const PrimitiveTypeEntry*) type; + if (trueType->basicReferencedTypeEntry()) + trueType = trueType->basicReferencedTypeEntry(); + QString typeName = trueType->qualifiedCppName(); + return !typeName.contains(QLatin1String("double")) + && !typeName.contains(QLatin1String("float")) + && !typeName.contains(QLatin1String("wchar")); +} +bool ShibokenGenerator::isCppIntegralPrimitive(const AbstractMetaType* type) +{ + return isCppIntegralPrimitive(type->typeEntry()); +} + +QString ShibokenGenerator::msgCouldNotFindMinimalConstructor(const QString &where, const QString &type) +{ + return where + QLatin1String(": Could not find a minimal constructor for type '") + type + + QLatin1String("'. This will result in a compilation error."); +} diff --git a/sources/shiboken2/generator/shiboken2/shibokengenerator.h b/sources/shiboken2/generator/shiboken2/shibokengenerator.h new file mode 100644 index 000000000..1be56edc8 --- /dev/null +++ b/sources/shiboken2/generator/shiboken2/shibokengenerator.h @@ -0,0 +1,556 @@ +/**************************************************************************** +** +** Copyright (C) 2016 The Qt Company Ltd. +** Contact: https://www.qt.io/licensing/ +** +** This file is part of PySide2. +** +** $QT_BEGIN_LICENSE:GPL-EXCEPT$ +** Commercial License Usage +** Licensees holding valid commercial Qt licenses may use this file in +** accordance with the commercial license agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and The Qt Company. For licensing terms +** and conditions see https://www.qt.io/terms-conditions. For further +** information use the contact form at https://www.qt.io/contact-us. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 3 as published by the Free Software +** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT +** included in the packaging of this file. Please review the following +** information to ensure the GNU General Public License requirements will +** be met: https://www.gnu.org/licenses/gpl-3.0.html. +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef SHIBOKENGENERATOR_H +#define SHIBOKENGENERATOR_H + +#define CONV_RULE_OUT_VAR_SUFFIX "_out" +#define CPP_ARG "cppArg" +#define CPP_ARG0 CPP_ARG"0" +#define CPP_ARG_REMOVED "removed_" CPP_ARG +#define CPP_RETURN_VAR "cppResult" +#define CPP_SELF_VAR "cppSelf" +#define PYTHON_ARG "pyArg" +#define PYTHON_ARGS PYTHON_ARG "s" +#define PYTHON_OVERRIDE_VAR "pyOverride" +#define PYTHON_RETURN_VAR "pyResult" +#define PYTHON_SELF_VAR "self" +#define THREAD_STATE_SAVER_VAR "threadStateSaver" +#define BEGIN_ALLOW_THREADS "PyThreadState* _save = PyEval_SaveThread(); // Py_BEGIN_ALLOW_THREADS" +#define END_ALLOW_THREADS "PyEval_RestoreThread(_save); // Py_END_ALLOW_THREADS" +#define PYTHON_TO_CPP_VAR "pythonToCpp" +#define SMART_POINTER_GETTER "kSmartPointerGetter" + +#define CHECKTYPE_REGEX "%CHECKTYPE\\[([^\\[]*)\\]\\(" +#define ISCONVERTIBLE_REGEX "%ISCONVERTIBLE\\[([^\\[]*)\\]\\(" +#define CONVERTTOPYTHON_REGEX "%CONVERTTOPYTHON\\[([^\\[]*)\\]\\(" +#define CONVERTTOCPP_REGEX "(\\*?%?[a-zA-Z_][\\w\\.]*(?:\\[[^\\[^<^>]+\\])*)"\ + "(?:\\s+)=(?:\\s+)%CONVERTTOCPP\\[([^\\[]*)\\]\\(" + +#include <generator.h> + +#include "typesystem.h" + +#include <QtCore/QRegularExpression> + +class DocParser; +class CodeSnip; +class OverloadData; + +QT_FORWARD_DECLARE_CLASS(QTextStream) + +/** + * Abstract generator that contains common methods used in CppGenerator and HeaderGenerator. + */ +class ShibokenGenerator : public Generator +{ +public: + ShibokenGenerator(); + virtual ~ShibokenGenerator(); + + QString translateTypeForWrapperMethod(const AbstractMetaType* cType, + const AbstractMetaClass* context, Options opt = NoOption) const; + + /** + * Returns a map with all functions grouped, the function name is used as key. + * Example of return value: { "foo" -> ["foo(int)", "foo(int, long)], "bar" -> "bar(double)"} + * \param scope Where to search for functions, null means all global functions. + */ + QMap<QString, AbstractMetaFunctionList> getFunctionGroups(const AbstractMetaClass* scope = 0); + + /** + * Returns all different inherited overloads of func. + * The function can be called multiple times without duplication. + * \param func the metafunction to be searched in subclasses. + * \param seen the function's minimal signatures already seen. + */ + AbstractMetaFunctionList getInheritedOverloads(const AbstractMetaFunction *func, QSet<QString> *seen); + + /** + * Returns all different inherited overloads of func, and includes func as well. + * The function can be called multiple times without duplication. + * \param func the metafunction to be searched in subclasses. + * \param seen the function's minimal signatures already seen. + */ + AbstractMetaFunctionList getFunctionAndInheritedOverloads(const AbstractMetaFunction *func, QSet<QString> *seen); + + /** + * Returns all overloads for a function named \p functionName. + * \param scope scope used to search for overloads. + * \param functionName the function name. + */ + AbstractMetaFunctionList getFunctionOverloads(const AbstractMetaClass* scope, const QString& functionName); + /** + * Returns the minimun and maximun number of arguments which this function and all overloads + * can accept. Arguments removed by typesystem are considered as well. + */ + QPair<int, int> getMinMaxArguments(const AbstractMetaFunction* metaFunction); + /** + * Write a function argument in the C++ in the text stream \p s. + * This function just call \code s << argumentString(); \endcode + * \param s text stream used to write the output. + * \param func the current metafunction. + * \param argument metaargument information to be parsed. + * \param options some extra options. + */ + void writeArgument(QTextStream &s, + const AbstractMetaFunction* func, + const AbstractMetaArgument* argument, + Options options = NoOption) const; + /** + * Create a QString in the C++ format to an function argument. + * \param func the current metafunction. + * \param argument metaargument information to be parsed. + * \param options some extra options. + */ + QString argumentString(const AbstractMetaFunction* func, + const AbstractMetaArgument* argument, + Options options = NoOption) const; + + void writeArgumentNames(QTextStream &s, + const AbstractMetaFunction* func, + Options options = NoOption) const override; + + /** + * Function used to write the fucntion arguments on the class buffer. + * \param s the class output buffer + * \param func the pointer to metafunction information + * \param count the number of function arguments + * \param options some extra options used during the parser + */ + void writeFunctionArguments(QTextStream &s, + const AbstractMetaFunction* func, + Options options = NoOption) const override; + QString functionReturnType(const AbstractMetaFunction* func, Options options = NoOption) const; + + /// Utility function for writeCodeSnips. + typedef QPair<const AbstractMetaArgument*, QString> ArgumentVarReplacementPair; + typedef QVector<ArgumentVarReplacementPair> ArgumentVarReplacementList; + ArgumentVarReplacementList getArgumentReplacement(const AbstractMetaFunction* func, + bool usePyArgs, TypeSystem::Language language, + const AbstractMetaArgument* lastArg); + + /// Write user's custom code snippets at class or module level. + void writeCodeSnips(QTextStream& s, + const QVector<CodeSnip> & codeSnips, + TypeSystem::CodeSnipPosition position, + TypeSystem::Language language, + const AbstractMetaClass* context = 0); + /// Write user's custom code snippets at function level. + void writeCodeSnips(QTextStream& s, + const QVector<CodeSnip> & codeSnips, + TypeSystem::CodeSnipPosition position, + TypeSystem::Language language, + const AbstractMetaFunction* func, + const AbstractMetaArgument* lastArg = 0); + + /// Returns a string with the user's custom code snippets that comply with \p position and \p language. + QString getCodeSnippets(const QVector<CodeSnip> & codeSnips, TypeSystem::CodeSnipPosition position, TypeSystem::Language language); + + /// Replaces variables for the user's custom code at global or class level. + void processCodeSnip(QString& code, const AbstractMetaClass* context = 0); + + /// Replaces the %CONVERTTOPYTHON type system variable. + inline void replaceConvertToPythonTypeSystemVariable(QString& code) + { + replaceConverterTypeSystemVariable(TypeSystemToPythonFunction, code); + } + /// Replaces the %CONVERTTOCPP type system variable. + inline void replaceConvertToCppTypeSystemVariable(QString& code) + { + replaceConverterTypeSystemVariable(TypeSystemToCppFunction, code); + } + /// Replaces the %ISCONVERTIBLE type system variable. + inline void replaceIsConvertibleToCppTypeSystemVariable(QString& code) + { + replaceConverterTypeSystemVariable(TypeSystemIsConvertibleFunction, code); + } + /// Replaces the %CHECKTYPE type system variable. + inline void replaceTypeCheckTypeSystemVariable(QString& code) + { + replaceConverterTypeSystemVariable(TypeSystemCheckFunction, code); + } + + /** + * Verifies if any of the function's code injections of the "target" + * type needs the type system variable "%CPPSELF". + * \param func the function to check + * \return true if the function's target code snippets use "%CPPSELF" + */ + bool injectedCodeUsesCppSelf(const AbstractMetaFunction* func); + + /** + * Verifies if any of the function's code injections of the "native" + * type needs the type system variable "%PYSELF". + * \param func the function to check + * \return true if the function's native code snippets use "%PYSELF" + */ + bool injectedCodeUsesPySelf(const AbstractMetaFunction* func); + + /** + * Verifies if any of the function's code injections makes a call + * to the C++ method. This is used by the generator to avoid writing calls + * to C++ when the user custom code already does this. + * \param func the function to check + * \return true if the function's code snippets call the wrapped C++ function + */ + bool injectedCodeCallsCppFunction(const AbstractMetaFunction* func); + + /** + * Verifies if any of the function's code injections of the "native" class makes a + * call to the C++ method. This is used by the generator to avoid writing calls to + * Python overrides of C++ virtual methods when the user custom code already does this. + * \param func the function to check + * \return true if the function's code snippets call the Python override for a C++ virtual method + */ + bool injectedCodeCallsPythonOverride(const AbstractMetaFunction* func); + + /** + * Verifies if any of the function's code injections attributes values to + * the return variable (%0 or %PYARG_0). + * \param func the function to check + * \param language the kind of code snip + * \return true if the function's code attributes values to "%0" or "%PYARG_0" + */ + bool injectedCodeHasReturnValueAttribution(const AbstractMetaFunction* func, TypeSystem::Language language = TypeSystem::TargetLangCode); + + /** + * Verifies if any of the function's code injections uses the type system variable + * for function arguments of a given index. + */ + bool injectedCodeUsesArgument(const AbstractMetaFunction* func, int argumentIndex); + + /** + * Function which parse the metafunction information + * \param func the function witch will be parserd + * \param option some extra options + * \param arg_count the number of function arguments + */ + QString functionSignature(const AbstractMetaFunction* func, + QString prepend = QString(), + QString append = QString(), + Options options = NoOption, + int arg_count = -1) const; + + /// Returns true if there are cases of multiple inheritance in any of its ancestors. + bool hasMultipleInheritanceInAncestry(const AbstractMetaClass* metaClass); + + /// Returns true if the class needs to have a getattro function. + bool classNeedsGetattroFunction(const AbstractMetaClass* metaClass); + + /// Returns true if the class needs to have a setattro function. + bool classNeedsSetattroFunction(const AbstractMetaClass *metaClass); + + /// Returns a list of methods of the given class where each one is part of a different overload with both static and non-static method. + AbstractMetaFunctionList getMethodsWithBothStaticAndNonStaticMethods(const AbstractMetaClass* metaClass); + + /// Returns a list of parent classes for a given class. + AbstractMetaClassList getBaseClasses(const AbstractMetaClass* metaClass) const; + + /// Returns a list of all ancestor classes for the given class. + AbstractMetaClassList getAllAncestors(const AbstractMetaClass* metaClass) const; + + const AbstractMetaClass* getMultipleInheritingClass(const AbstractMetaClass* metaClass); + + void writeToPythonConversion(QTextStream& s, const AbstractMetaType* type, + const AbstractMetaClass* context, const QString& argumentName); + void writeToCppConversion(QTextStream& s, const AbstractMetaType* type, const AbstractMetaClass* context, const QString& inArgName, const QString& outArgName); + void writeToCppConversion(QTextStream& s, const AbstractMetaClass* metaClass, const QString& inArgName, const QString& outArgName); + + /// Returns true if the argument is a pointer that rejects NULL values. + bool shouldRejectNullPointerArgument(const AbstractMetaFunction* func, int argIndex); + + /// Verifies if the class should have a C++ wrapper generated for it, instead of only a Python wrapper. + bool shouldGenerateCppWrapper(const AbstractMetaClass* metaClass) const; + + /// Adds enums eligible for generation from classes/namespaces marked not to be generated. + static void lookForEnumsInClassesNotToBeGenerated(AbstractMetaEnumList& enumList, const AbstractMetaClass* metaClass); + /// Returns the enclosing class for an enum, or NULL if it should be global. + const AbstractMetaClass* getProperEnclosingClassForEnum(const AbstractMetaEnum* metaEnum); + + QString wrapperName(const AbstractMetaClass* metaClass) const; + QString wrapperName(const AbstractMetaType *metaType) const; + + static QString fullPythonFunctionName(const AbstractMetaFunction* func); + static QString protectedEnumSurrogateName(const AbstractMetaEnum* metaEnum); + static QString protectedFieldGetterName(const AbstractMetaField* field); + static QString protectedFieldSetterName(const AbstractMetaField* field); + + static QString pythonPrimitiveTypeName(const QString& cppTypeName); + static QString pythonPrimitiveTypeName(const PrimitiveTypeEntry* type); + + static QString pythonOperatorFunctionName(QString cppOpFuncName); + static QString pythonOperatorFunctionName(const AbstractMetaFunction* func); + static QString pythonRichCompareOperatorId(QString cppOpFuncName); + static QString pythonRichCompareOperatorId(const AbstractMetaFunction* func); + + static QString cpythonOperatorFunctionName(const AbstractMetaFunction* func); + + static QString fixedCppTypeName(const CustomConversion::TargetToNativeConversion* toNative); + static QString fixedCppTypeName(const AbstractMetaType* type); + static QString fixedCppTypeName(const TypeEntry* type, QString typeName = QString()); + + static bool isNumber(QString cpythonApiName); + static bool isNumber(const TypeEntry* type); + static bool isNumber(const AbstractMetaType* type); + static bool isPyInt(const TypeEntry* type); + static bool isPyInt(const AbstractMetaType* type); + static bool isPairContainer(const AbstractMetaType* type); + + /** + * Returns true if the type passed has a Python wrapper for it. + * Although namespace has a Python wrapper, it's not considered a type. + */ + static bool isWrapperType(const TypeEntry* type); + static bool isWrapperType(const ComplexTypeEntry* type); + static bool isWrapperType(const AbstractMetaType* metaType); + + /** + * Checks if the type is an Object/QObject or pointer to Value Type. + * In other words, tells if the type is "T*" and T has a Python wrapper. + */ + static bool isPointerToWrapperType(const AbstractMetaType* type); + + /** + * Returns true if \p type is an Object Type used as a value. + */ + static bool isObjectTypeUsedAsValueType(const AbstractMetaType* type); + + static bool isValueTypeWithCopyConstructorOnly(const AbstractMetaClass* metaClass); + bool isValueTypeWithCopyConstructorOnly(const TypeEntry* type) const; + bool isValueTypeWithCopyConstructorOnly(const AbstractMetaType* type) const; + + /// Returns true if the type is a primitive but not a C++ primitive. + static bool isUserPrimitive(const TypeEntry* type); + static bool isUserPrimitive(const AbstractMetaType* type); + + /// Returns true if the type is a C++ primitive, a void*, a const char*, or a std::string. + static bool isCppPrimitive(const TypeEntry* type); + static bool isCppPrimitive(const AbstractMetaType* type); + + /// Returns true if the type is a C++ integral primitive, i.e. bool, char, int, long, and their unsigned counterparts. + static bool isCppIntegralPrimitive(const TypeEntry* type); + static bool isCppIntegralPrimitive(const AbstractMetaType* type); + + /// Checks if an argument type should be dereferenced by the Python method wrapper before calling the C++ method. + static bool shouldDereferenceArgumentPointer(const AbstractMetaArgument* arg); + /// Checks if a meta type should be dereferenced by the Python method wrapper passing it to C++. + static bool shouldDereferenceAbstractMetaTypePointer(const AbstractMetaType* metaType); + + static bool visibilityModifiedToPrivate(const AbstractMetaFunction* func); + + QString converterObject(const AbstractMetaType* type); + QString converterObject(const TypeEntry* type); + + QString cpythonBaseName(const AbstractMetaClass* metaClass); + QString cpythonBaseName(const TypeEntry* type); + QString cpythonBaseName(const AbstractMetaType* type); + QString cpythonTypeName(const AbstractMetaClass* metaClass); + QString cpythonTypeName(const TypeEntry* type); + QString cpythonTypeNameExt(const TypeEntry* type); + QString cpythonTypeNameExt(const AbstractMetaType* type); + QString cpythonCheckFunction(const TypeEntry* type, bool genericNumberType = false); + QString cpythonCheckFunction(const AbstractMetaType* metaType, bool genericNumberType = false); + /** + * Receives the argument \p type and tries to find the appropriate AbstractMetaType for it + * or a custom type check. + * \param type A string representing the type to be discovered. + * \param metaType A pointer to an AbstractMetaType pointer, to where write a new meta type object + * if one is produced from the \p type string. This object must be deallocated by + * the caller. It will set the target variable to NULL, is \p type is a Python type. + * \return A custom check if \p type is a custom type, or an empty string if \p metaType + * receives an existing type object. + */ + QString guessCPythonCheckFunction(const QString& type, AbstractMetaType** metaType); + QString cpythonIsConvertibleFunction(const TypeEntry* type, bool genericNumberType = false, bool checkExact = false); + QString cpythonIsConvertibleFunction(const AbstractMetaType* metaType, bool genericNumberType = false); + QString cpythonIsConvertibleFunction(const AbstractMetaArgument* metaArg, bool genericNumberType = false); + QString guessCPythonIsConvertible(const QString& type); + + QString cpythonToCppConversionFunction(const AbstractMetaClass* metaClass); + QString cpythonToCppConversionFunction(const AbstractMetaType* type, const AbstractMetaClass* context = 0); + QString cpythonToPythonConversionFunction(const AbstractMetaType* type, const AbstractMetaClass* context = 0); + QString cpythonToPythonConversionFunction(const AbstractMetaClass* metaClass); + QString cpythonToPythonConversionFunction(const TypeEntry* type); + + QString cpythonFunctionName(const AbstractMetaFunction* func); + QString cpythonMethodDefinitionName(const AbstractMetaFunction* func); + QString cpythonGettersSettersDefinitionName(const AbstractMetaClass* metaClass); + QString cpythonGetattroFunctionName(const AbstractMetaClass* metaClass); + QString cpythonSetattroFunctionName(const AbstractMetaClass* metaClass); + QString cpythonGetterFunctionName(const AbstractMetaField* metaField); + QString cpythonSetterFunctionName(const AbstractMetaField* metaField); + QString cpythonWrapperCPtr(const AbstractMetaClass* metaClass, QString argName = QLatin1String(PYTHON_SELF_VAR)); + QString cpythonWrapperCPtr(const AbstractMetaType *metaType, QString argName); + QString cpythonWrapperCPtr(const TypeEntry* type, QString argName); + + /// Guesses the scope to where belongs an argument's default value. + QString guessScopeForDefaultValue(const AbstractMetaFunction* func, const AbstractMetaArgument* arg); + + QString cpythonEnumName(const EnumTypeEntry* enumEntry); + QString cpythonEnumName(const AbstractMetaEnum* metaEnum); + + QString cpythonFlagsName(const FlagsTypeEntry* flagsEntry); + QString cpythonFlagsName(const AbstractMetaEnum* metaEnum); + /// Returns the special cast function name, the function used to proper cast class with multiple inheritance. + QString cpythonSpecialCastFunctionName(const AbstractMetaClass* metaClass); + + QString getFunctionReturnType(const AbstractMetaFunction* func, Options options = NoOption) const; + QString getFormatUnitString(const AbstractMetaFunction* func, bool incRef = false) const; + + /// Returns the file name for the module global header. If no module name is provided the current will be used. + QString getModuleHeaderFileName(const QString& moduleName = QString()) const; + + QString extendedIsConvertibleFunctionName(const TypeEntry* targetType) const; + QString extendedToCppFunctionName(const TypeEntry* targetType) const; + + QMap< QString, QString > options() const override; + + /// Returns true if the user enabled the so called "parent constructor heuristic". + bool useCtorHeuristic() const; + /// Returns true if the user enabled the so called "return value heuristic". + bool useReturnValueHeuristic() const; + /// Returns true if the user enabled PySide extensions. + bool usePySideExtensions() const; + /// Returns true if the generator should use the result of isNull()const to compute boolean casts. + bool useIsNullAsNbNonZero() const; + /// Returns true if the generated code should use the "#define protected public" hack. + bool avoidProtectedHack() const; + QString cppApiVariableName(const QString& moduleName = QString()) const; + QString convertersVariableName(const QString& moduleName = QString()) const; + /** + * Returns the type index variable name for a given class. If \p alternativeTemplateName is true + * and the class is a typedef for a template class instantiation, it will return an alternative name + * made of the template class and the instantiation values, or an empty string if the class isn't + * derived from a template class at all. + */ + QString getTypeIndexVariableName(const AbstractMetaClass* metaClass, bool alternativeTemplateName = false); + QString getTypeIndexVariableName(const TypeEntry* type); + QString getTypeIndexVariableName(const AbstractMetaType* type); + + /// Returns true if the user don't want verbose error messages on the generated bindings. + bool verboseErrorMessagesDisabled() const; + + /** + * Builds an AbstractMetaType object from a QString. + * Returns NULL if no type could be built from the string. + * \param typeSignature The string describing the type to be built. + * \return A new AbstractMetaType object that must be deleted by the caller, or a NULL pointer in case of failure. + */ + AbstractMetaType* buildAbstractMetaTypeFromString(QString typeSignature); + + /// Creates an AbstractMetaType object from a TypeEntry. + AbstractMetaType* buildAbstractMetaTypeFromTypeEntry(const TypeEntry* typeEntry); + /// Creates an AbstractMetaType object from an AbstractMetaClass. + AbstractMetaType* buildAbstractMetaTypeFromAbstractMetaClass(const AbstractMetaClass* metaClass); + + void writeMinimalConstructorExpression(QTextStream& s, const AbstractMetaType* type, const QString& defaultCtor = QString()); + void writeMinimalConstructorExpression(QTextStream& s, const TypeEntry* type, const QString& defaultCtor = QString()); + + /** + * Helper function to return the flags to be used by a meta type when + * it needs to write some converter code. + */ + static Options getConverterOptions(const AbstractMetaType* metaType); + + /** + * Helper function to find for argument default value + */ + static QString getDefaultValue(const AbstractMetaFunction* func, const AbstractMetaArgument* arg); +protected: + bool doSetup(const QMap<QString, QString>& args); + void collectContainerTypesFromConverterMacros(const QString& code, bool toPythonMacro); + // verify whether the class is copyable + bool isCopyable(const AbstractMetaClass* metaClass); + + bool m_native_jump_table; + static QHash<QString, QString> m_pythonPrimitiveTypeName; + static QHash<QString, QString> m_pythonOperators; + static QHash<QString, QString> m_formatUnits; + static QHash<QString, QString> m_tpFuncs; + static QStringList m_knownPythonTypes; + + void clearTpFuncs(); + + const char* name() const { return "Shiboken"; } + + /// Initializes correspondences between primitive and Python types. + static void initPrimitiveTypesCorrespondences(); + /// Initializes a list of Python known type names. + static void initKnownPythonTypes(); + + void writeFunctionCall(QTextStream& s, + const AbstractMetaFunction* metaFunc, + Options options = NoOption) const; + + void writeUnusedVariableCast(QTextStream& s, const QString& variableName); + + AbstractMetaFunctionList filterFunctions(const AbstractMetaClass* metaClass); + + // All data about extended converters: the type entries of the target type, and a + // list of AbstractMetaClasses accepted as argument for the conversion. + typedef QHash<const TypeEntry *, QVector<const AbstractMetaClass *> > ExtendedConverterData; + /// Returns all extended conversions for the current module. + ExtendedConverterData getExtendedConverters() const; + + /// Returns a list of converters for the non wrapper types of the current module. + QVector<const CustomConversion *> getPrimitiveCustomConversions(); + + /// Returns true if the Python wrapper for the received OverloadData must accept a list of arguments. + static bool pythonFunctionWrapperUsesListOfArguments(const OverloadData& overloadData); + + Indentor INDENT; + + enum TypeSystemConverterVariable { + TypeSystemCheckFunction = 0, + TypeSystemIsConvertibleFunction, + TypeSystemToCppFunction, + TypeSystemToPythonFunction, + TypeSystemConverterVariables + }; + void replaceConverterTypeSystemVariable(TypeSystemConverterVariable converterVariable, QString& code); + + static QString msgCouldNotFindMinimalConstructor(const QString &where, const QString &type); + +private: + bool m_useCtorHeuristic; + bool m_userReturnValueHeuristic; + bool m_usePySideExtensions; + bool m_verboseErrorMessagesDisabled; + bool m_useIsNullAsNbNonZero; + bool m_avoidProtectedHack; + + typedef QHash<QString, AbstractMetaType*> AbstractMetaTypeCache; + AbstractMetaTypeCache m_metaTypeFromStringCache; + + /// Type system converter variable replacement names and regular expressions. + QString m_typeSystemConvName[TypeSystemConverterVariables]; + QRegularExpression m_typeSystemConvRegEx[TypeSystemConverterVariables]; +}; + +#endif // SHIBOKENGENERATOR_H |