> On Oct 23, 2018, at 11:09 AM, Erik Pilkington via Phabricator 
> <revi...@reviews.llvm.org> wrote:
> 
> erik.pilkington added a subscriber: jingham.
> erik.pilkington added inline comments.
> 
> 
> ================
> Comment at: clang/lib/Basic/IdentifierTable.cpp:166-167
>   // in non-arc mode.
> -  if (LangOpts.ObjC2 && (Flags & KEYARC)) return KS_Enabled;
> -  if (LangOpts.ObjC2 && (Flags & KEYOBJC2)) return KS_Enabled;
> +  if (LangOpts.ObjC && (Flags & KEYARC)) return KS_Enabled;
> +  if (LangOpts.ObjC && (Flags & KEYOBJC)) return KS_Enabled;
>   if (LangOpts.ConceptsTS && (Flags & KEYCONCEPTS)) return KS_Enabled;
> ----------------
> rsmith wrote:
>> Would it make sense to fold `KEYOBJC` and `KEYARC` together?
> Yep, good point. Looks like we used to only enable these keywords in 
> -fobjc-arc mode, but now that we're doing it for objective-c there isn't any 
> distinction to be made here. I'll commit this in a follow-up.
> 
> 
> ================
> Comment at: 
> lldb/source/Plugins/ExpressionParser/Clang/ClangExpressionParser.cpp:408
>     // non-Apple platforms, but for now it is needed.
> -    m_compiler->getLangOpts().ObjC1 = true;
> +    m_compiler->getLangOpts().ObjC = true;
>     break;
> ----------------
> rsmith wrote:
>> Curious, this looks like it was the *only* way we previously ever got into 
>> `ObjC1` mode. Any idea why this path turns on `ObjC1` but not `ObjC2`?
> This comes from https://reviews.llvm.org/D11102. I can't really imagine this 
> being anything but an oversight, I doubt that there is some subtle reason to 
> use ObjC1. @jingham: Can you confirm that there isn't any reason to use just 
> ObjC1 and not ObjC1+ObjC2 here?

This certainly does seem like an oversight, and I can't think of any good 
reason why this change just set ObjC1 and not ObjC2 like all the other places 
this was done.

Jim


> 
> 
> https://reviews.llvm.org/D53547
> 
> 
> 

_______________________________________________
cfe-commits mailing list
cfe-commits@lists.llvm.org
http://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits

Reply via email to