shiboken: get rid of some warnings

A few warnings are from
    libshiboken: Fix some clang analzyer warnings
where const_cast is still needed in Python 3.

Thanks for helping with
    auto writeConversionRegister = [this, &s](const AbstractMetaType &sourceType, const QString &targetTypeName, const QString &targetConverter)

Change-Id: I487c9a5234dd1378c3a834076dd3bb204bb76cb8
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io>

6 files changed, 44 insertions, 40 deletions

diff --git a/sources/shiboken6/ApiExtractor/clangparser/compilersupport.cpp b/sources/shiboken6/ApiExtractor/clangparser/compilersupport.cpp
index 02a66b40e..7631916fb 100644
--- a/sources/shiboken6/ApiExtractor/clangparser/compilersupport.cpp
+++ b/sources/shiboken6/ApiExtractor/clangparser/compilersupport.cpp
@@ -95,7 +95,7 @@ static bool runProcess(const QString &program, const QStringList &arguments,
 
 static QByteArray frameworkPath() { return QByteArrayLiteral(" (framework directory)"); }
 
-#if defined(Q_OS_MACOS)
+#  if defined(Q_OS_MACOS)
 static void filterHomebrewHeaderPaths(HeaderPaths &headerPaths)
 {
     QByteArray homebrewPrefix = qgetenv("HOMEBREW_OPT");
@@ -123,7 +123,7 @@ static void filterHomebrewHeaderPaths(HeaderPaths &headerPaths)
         }
     }
 }
-#endif
+#  endif
 
 // Determine g++'s internal include paths from the output of
 // g++ -E -x c++ - -v </dev/null
@@ -161,9 +161,9 @@ static HeaderPaths gppInternalIncludePaths(const QString &compiler)
         }
     }
 
-#if defined(Q_OS_MACOS)
+#  if defined(Q_OS_MACOS)
     filterHomebrewHeaderPaths(result);
-#endif
+#  endif
     return result;
 }
 #endif // Q_CC_MSVC
@@ -300,7 +300,7 @@ static QString compilerFromCMake(const QString &defaultCompiler)
 {
 // Added !defined(Q_OS_DARWIN) due to PYSIDE-1032
 #  if defined(CMAKE_CXX_COMPILER) && !defined(Q_OS_DARWIN)
-    Q_UNUSED(defaultCompiler)
+    Q_UNUSED(defaultCompiler);
     return QString::fromLocal8Bit(CMAKE_CXX_COMPILER);
 #  else
     return defaultCompiler;
@@ -329,6 +329,11 @@ static void appendClangBuiltinIncludes(HeaderPaths *p)
 // Returns clang options needed for emulating the host compiler
 QByteArrayList emulatedCompilerOptions()
 {
+#if defined(Q_CC_GNU)
+    // Needed to silence a warning, but needsGppInternalHeaders is used below.
+    // This seems to be a compiler bug on macOS.
+    Q_UNUSED(needsGppInternalHeaders);
+#endif
     QByteArrayList result;
 #if defined(Q_CC_MSVC)
     HeaderPaths headerPaths;
diff --git a/sources/shiboken6/ApiExtractor/typesystemparser.cpp b/sources/shiboken6/ApiExtractor/typesystemparser.cpp
index c1780ac89..1436e739a 100644
--- a/sources/shiboken6/ApiExtractor/typesystemparser.cpp
+++ b/sources/shiboken6/ApiExtractor/typesystemparser.cpp
@@ -82,7 +82,6 @@ static inline QString indexAttribute() { return QStringLiteral("index"); }
 static inline QString invalidateAfterUseAttribute() { return QStringLiteral("invalidate-after-use"); }
 static inline QString locationAttribute() { return QStringLiteral("location"); }
 static inline QString modifiedTypeAttribute() { return QStringLiteral("modified-type"); }
-static inline QString modifierAttribute() { return QStringLiteral("modifier"); }
 static inline QString overloadNumberAttribute() { return QStringLiteral("overload-number"); }
 static inline QString ownershipAttribute() { return QStringLiteral("owner"); }
 static inline QString packageAttribute() { return QStringLiteral("package"); }
diff --git a/sources/shiboken6/libshiboken/basewrapper.cpp b/sources/shiboken6/libshiboken/basewrapper.cpp
index 91bd9cd2e..d33ec63e0 100644
--- a/sources/shiboken6/libshiboken/basewrapper.cpp
+++ b/sources/shiboken6/libshiboken/basewrapper.cpp
@@ -135,12 +135,12 @@ type_set_doc(PyTypeObject *type, PyObject *value, void *context)
 // explicitly pass __doc__. For __signature__ it _did_ actually work, because
 // it was not existing before. We add them both for clarity.
 static PyGetSetDef SbkObjectType_Type_getsetlist[] = {
-    {"__signature__", reinterpret_cast<getter>(Sbk_TypeGet___signature__),
-                      nullptr, nullptr, nullptr},
-    {"__doc__",       reinterpret_cast<getter>(Sbk_TypeGet___doc__),
-                      reinterpret_cast<setter>(type_set_doc), nullptr, nullptr},
-    {"__dict__",      reinterpret_cast<getter>(Sbk_TypeGet___dict__),
-                      nullptr, nullptr, nullptr},
+    {const_cast<char *>("__signature__"), reinterpret_cast<getter>(Sbk_TypeGet___signature__),
+                                          nullptr, nullptr, nullptr},
+    {const_cast<char *>("__doc__"),       reinterpret_cast<getter>(Sbk_TypeGet___doc__),
+                                          reinterpret_cast<setter>(type_set_doc), nullptr, nullptr},
+    {const_cast<char *>("__dict__"),      reinterpret_cast<getter>(Sbk_TypeGet___dict__),
+                                          nullptr, nullptr, nullptr},
     {nullptr, nullptr, nullptr, nullptr, nullptr}  // Sentinel
 };
 
@@ -191,7 +191,7 @@ static PyObject *SbkObjectGetDict(PyObject *pObj, void *)
 }
 
 static PyGetSetDef SbkObjectGetSetList[] = {
-    {"__dict__", SbkObjectGetDict, nullptr, nullptr, nullptr},
+    {const_cast<char *>("__dict__"), SbkObjectGetDict, nullptr, nullptr, nullptr},
     {nullptr, nullptr, nullptr, nullptr, nullptr} // Sentinel
 };
 
diff --git a/sources/shiboken6/libshiboken/sbkenum.cpp b/sources/shiboken6/libshiboken/sbkenum.cpp
index c9243d652..a3d17ea2e 100644
--- a/sources/shiboken6/libshiboken/sbkenum.cpp
+++ b/sources/shiboken6/libshiboken/sbkenum.cpp
@@ -261,7 +261,7 @@ static Py_hash_t enum_hash(PyObject *pyObj)
 }
 
 static PyGetSetDef SbkEnumGetSetList[] = {
-    {"name", SbkEnumObject_name, nullptr, nullptr, nullptr},
+    {const_cast<char *>("name"), SbkEnumObject_name, nullptr, nullptr, nullptr},
     {nullptr, nullptr, nullptr, nullptr, nullptr} // Sentinel
 };
 
diff --git a/sources/shiboken6/libshiboken/signature/signature_extend.cpp b/sources/shiboken6/libshiboken/signature/signature_extend.cpp
index 1c50c0d72..43a78ed21 100644
--- a/sources/shiboken6/libshiboken/signature/signature_extend.cpp
+++ b/sources/shiboken6/libshiboken/signature/signature_extend.cpp
@@ -222,47 +222,47 @@ static int pyside_set___signature__(PyObject *op, PyObject *value)
 }
 
 static PyGetSetDef new_PyCFunction_getsets[] = {
-    {"__doc__",       reinterpret_cast<getter>(pyside_cf_get___doc__),
-                      nullptr, nullptr, nullptr},
-    {"__signature__", reinterpret_cast<getter>(pyside_cf_get___signature__),
-                      reinterpret_cast<setter>(pyside_set___signature__),
-                      nullptr, nullptr},
+    {const_cast<char *>("__doc__"),       reinterpret_cast<getter>(pyside_cf_get___doc__),
+                                          nullptr, nullptr, nullptr},
+    {const_cast<char *>("__signature__"), reinterpret_cast<getter>(pyside_cf_get___signature__),
+                                          reinterpret_cast<setter>(pyside_set___signature__),
+                                          nullptr, nullptr},
     {nullptr, nullptr, nullptr, nullptr, nullptr}
 };
 
 static PyGetSetDef new_PyStaticMethod_getsets[] = {
-    {"__doc__",       reinterpret_cast<getter>(pyside_sm_get___doc__),
-                      nullptr, nullptr, nullptr},
-    {"__signature__", reinterpret_cast<getter>(pyside_sm_get___signature__),
-                      reinterpret_cast<setter>(pyside_set___signature__),
-                      nullptr, nullptr},
+    {const_cast<char *>("__doc__"),       reinterpret_cast<getter>(pyside_sm_get___doc__),
+                                          nullptr, nullptr, nullptr},
+    {const_cast<char *>("__signature__"), reinterpret_cast<getter>(pyside_sm_get___signature__),
+                                          reinterpret_cast<setter>(pyside_set___signature__),
+                                          nullptr, nullptr},
     {nullptr, nullptr, nullptr, nullptr, nullptr}
 };
 
 static PyGetSetDef new_PyMethodDescr_getsets[] = {
-    {"__doc__",       reinterpret_cast<getter>(pyside_md_get___doc__),
-                      nullptr, nullptr, nullptr},
-    {"__signature__", reinterpret_cast<getter>(pyside_md_get___signature__),
-                      reinterpret_cast<setter>(pyside_set___signature__),
-                      nullptr, nullptr},
+    {const_cast<char *>("__doc__"),       reinterpret_cast<getter>(pyside_md_get___doc__),
+                                          nullptr, nullptr, nullptr},
+    {const_cast<char *>("__signature__"), reinterpret_cast<getter>(pyside_md_get___signature__),
+                                          reinterpret_cast<setter>(pyside_set___signature__),
+                                          nullptr, nullptr},
     {nullptr, nullptr, nullptr, nullptr, nullptr}
 };
 
 static PyGetSetDef new_PyType_getsets[] = {
-    {"__doc__",       reinterpret_cast<getter>(pyside_tp_get___doc__),
-                      nullptr, nullptr, nullptr},
-    {"__signature__", reinterpret_cast<getter>(pyside_tp_get___signature__),
-                      reinterpret_cast<setter>(pyside_set___signature__),
-                      nullptr, nullptr},
+    {const_cast<char *>("__doc__"),       reinterpret_cast<getter>(pyside_tp_get___doc__),
+                                          nullptr, nullptr, nullptr},
+    {const_cast<char *>("__signature__"), reinterpret_cast<getter>(pyside_tp_get___signature__),
+                                          reinterpret_cast<setter>(pyside_set___signature__),
+                                          nullptr, nullptr},
     {nullptr, nullptr, nullptr, nullptr, nullptr}
 };
 
 static PyGetSetDef new_PyWrapperDescr_getsets[] = {
-    {"__doc__",       reinterpret_cast<getter>(pyside_wd_get___doc__),
-                      nullptr, nullptr, nullptr},
-    {"__signature__", reinterpret_cast<getter>(pyside_wd_get___signature__),
-                      reinterpret_cast<setter>(pyside_set___signature__),
-                      nullptr, nullptr},
+    {const_cast<char *>("__doc__"),       reinterpret_cast<getter>(pyside_wd_get___doc__),
+                                          nullptr, nullptr, nullptr},
+    {const_cast<char *>("__signature__"), reinterpret_cast<getter>(pyside_wd_get___signature__),
+                                          reinterpret_cast<setter>(pyside_set___signature__),
+                                          nullptr, nullptr},
     {nullptr, nullptr, nullptr, nullptr, nullptr}
 };
 
diff --git a/sources/shiboken6/tests/qtxmltosphinxtest/qtxmltosphinxtest.h b/sources/shiboken6/tests/qtxmltosphinxtest/qtxmltosphinxtest.h
index 083ebb091..dffbd86c0 100644
--- a/sources/shiboken6/tests/qtxmltosphinxtest/qtxmltosphinxtest.h
+++ b/sources/shiboken6/tests/qtxmltosphinxtest/qtxmltosphinxtest.h
@@ -39,7 +39,7 @@ class QtXmlToSphinxTest : public QObject, public QtXmlToSphinxDocGeneratorInterf
 public:
     // QtXmlToSphinxDocGeneratorInterface
     QString expandFunction(const QString &) const override;
-    QString expandClass(const QString &, const QString &) const;
+    QString expandClass(const QString &, const QString &) const override;
     QString resolveContextForMethod(const QString &,
                                     const QString &) const override;
     const QLoggingCategory &loggingCategory() const override;