shiboken6: Fix an invalid static_cast

The argument type is not necessarily a PrimitiveTypeEntry.

Task-number: PYSIDE-1660
Change-Id: I312f20e24cfe888d10c218db596d29c3ab318bd6
Reviewed-by: Cristian Maureira-Fredes <cristian.maureira-fredes@qt.io>
Reviewed-by: Christian Tismer <tismer@stackless.com>
(cherry picked from commit f6e8ba7e9861e29dbd995d984accc79e96a10388)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>

1 files changed, 5 insertions, 4 deletions

diff --git a/sources/shiboken6/generator/shiboken/cppgenerator.cpp b/sources/shiboken6/generator/shiboken/cppgenerator.cpp
index 6a3cb0fe9..b892d9392 100644
--- a/sources/shiboken6/generator/shiboken/cppgenerator.cpp
+++ b/sources/shiboken6/generator/shiboken/cppgenerator.cpp
@@ -1088,7 +1088,7 @@ void CppGenerator::writeVirtualMethodNative(TextStream &s,
                 continue;
 
             const auto &argType = arg.type();
-            auto argTypeEntry = static_cast<const PrimitiveTypeEntry *>(argType.typeEntry());
+            const auto *argTypeEntry = argType.typeEntry();
             bool convert = argTypeEntry->isObject()
                             || argTypeEntry->isValue()
                             || argType.isValuePointer()
@@ -1099,9 +1099,10 @@ void CppGenerator::writeVirtualMethodNative(TextStream &s,
                             || argType.referenceType() == LValueReference;
 
             if (!convert && argTypeEntry->isPrimitive()) {
-                if (argTypeEntry->basicReferencedTypeEntry())
-                    argTypeEntry = argTypeEntry->basicReferencedTypeEntry();
-                convert = !formatUnits().contains(argTypeEntry->name());
+                const auto *pte = static_cast<const PrimitiveTypeEntry *>(argTypeEntry);
+                if (pte->basicReferencedTypeEntry())
+                    pte = pte->basicReferencedTypeEntry();
+                convert = !formatUnits().contains(pte->name());
             }
 
             StringStream ac(TextStream::Language::Cpp);