ilya-biryukov added inline comments.
================
Comment at: lib/Sema/SemaDecl.cpp:12184
Decl *Sema::ActOnSkippedFunctionBody(Decl *Decl) {
- if (FunctionDecl *FD = dyn_cast_or_null<FunctionDecl>(Decl))
+ if (FunctionDecl *FD = Decl->getAsFunction())
FD->setHasSkippedBody();
----------------
ilya-biryukov wrote:
> sepavloff wrote:
> > In the case of `Decl == nullptr` this code would crash. Probably it makes
> > sense to check for this condition at the beginning of the function and use
> > `dyn_cast` instead of `dyn_cast_or_null` in the next check.
> >
> Do we have callsites that pass null to this function? I don't see a
> meaningful semantics for this function if we pass null here.
> I thought that `Decl`s are always passed via pointers by convention, but I
> may be wrong.
After looking at the callsites, they actually suggest that nulls can be passed.
Tried adding an assert and it didn't fire when running `check-all`, though.
But it's better to be on the safe side. Added a check for null, updated the
patch accordingly.
Repository:
rC Clang
https://reviews.llvm.org/D41237
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