aaron.ballman added a comment.

In D61835#1505048 <https://reviews.llvm.org/D61835#1505048>, @steveire wrote:

> In D61835#1504663 <https://reviews.llvm.org/D61835#1504663>, @aaron.ballman 
> wrote:
>
> > I'm not certain where you're planning to go with this change (or is this 
> > the only change you're trying to make in this area?), so it's a bit hard to 
> > evaluate this patch. Can you explain a bit more about what you're 
> > ultimately trying to accomplish?
> >
> > It might help if I had a better idea of which APIs you thought were ones 
> > that would help users (because my only real concern with this change is 
> > that the public interface for this class is rather unpleasant).
>
>
> The reason the `ASTDumper` class still exists (for the purpose of dumping an 
> AST to stream at least) is that it dumps the 
> `{Function,Var,Class}TemplateDecl` 'correctly'.


Yup, this I recall.

> The users of the follow-up patch 
> https://reviews.llvm.org/D61837#change-x5mxz9Lpijjs need that 'correctness', 
> but also need the public API from `ASTNodeTraverser` on the instance. (That 
> patch also extends the public API for users).

I don't see anything in the follow-up patch that actually uses the `ASTDumper` 
class though, so I'm still a bit confused.

> Perhaps some day the stream-dump output can be changed and the `ASTDumper` 
> class will not be needed anymore. This is not that day :).

Yeah, and I'm not suggesting today needs to be that day, either. :-) It's just 
that this looks like a change with no positive impact because the change isn't 
being used anywhere (that I can tell), so the only thing I have to go on is 
"does this produce a decent public API?" and my feeling is "no, this class is 
an implementation detail and should remain hidden", especially since we think 
we can remove it someday.


Repository:
  rC Clang

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D61835/new/

https://reviews.llvm.org/D61835



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