[PATCH] D152194: [NFC][CLANG] Fix nullptr dereference issue found by static analyzer tool

[Soumi Manna via Phabricator via cfe-commits]

Manna added inline comments.


================
Comment at: clang/lib/StaticAnalyzer/Checkers/DynamicTypePropagation.cpp:756
     if (ReceiverType->isObjCIdType() || ReceiverType->isObjCClassType() ||
         ASTCtxt.canAssignObjCInterfaces(ReceiverObjectPtrType, TrackedType)) {
       const ObjCInterfaceDecl *InterfaceDecl = TrackedType->getInterfaceDecl();
----------------
We are assigning: ReceiverObjectPtrType = nullptr return value from getAs.
```
const auto *ReceiverObjectPtrType =
      ReceiverType->getAs<ObjCObjectPointerType>();
```

Then we are dereferencing  nullptr ReceiverObjectPtrType when calling 
canAssignObjCInterfaces()


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D152194/new/

https://reviews.llvm.org/D152194

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