[PATCH] D61816: [CFG] [analyzer] pr41300: Add a branch to skip virtual base initializers when they are handled by the superclass.

Csaba Dabis via Phabricator via cfe-commits cfe-commits at lists.llvm.org
Fri May 24 16:02:51 PDT 2019


Charusso accepted this revision.
Charusso added inline comments.


================
Comment at: clang/lib/StaticAnalyzer/Core/CoreEngine.cpp:451
+  if (const auto *CallerCtor = dyn_cast_or_null<CXXConstructExpr>(
+          LCtx->getStackFrame()->getCallSite())) {
+    switch (CallerCtor->getConstructionKind()) {
----------------
NoQ wrote:
> Charusso wrote:
> > NoQ wrote:
> > > Charusso wrote:
> > > > May it is worth to handle the call outside to see whether it is non-null.
> > > Mmm, what do you mean?
> > It was that which is `null`-proof:
> > ```
> > if (const Stmt *Outer = LCtx->getStackFrame()->getCallSite()) {
> >   const CXXConstructExpr *OuterCtor = dyn_cast<CXXConstructExpr>(Outer);
> >   if (OuterCtor) {
> >     // ...
> >   }
> > }
> > ```
> That's exactly what `_or_null` stands for in `dyn_cast_or_null`.
Hm, I believe I had problems with that nullability a year ago, but it was long ago. Thanks for the clarification.


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D61816/new/

https://reviews.llvm.org/D61816





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