dblaikie added a comment.

In D149677#4356863 <https://reviews.llvm.org/D149677#4356863>, @aaron.ballman 
wrote:

> In D149677#4350337 <https://reviews.llvm.org/D149677#4350337>, @li.zhe.hua 
> wrote:
>
>> In D149677#4349523 <https://reviews.llvm.org/D149677#4349523>, 
>> @aaron.ballman wrote:
>>
>>> In D149677#4320178 <https://reviews.llvm.org/D149677#4320178>, @li.zhe.hua 
>>> wrote:
>>>
>>>> Some additional context: I'm working on a refactoring tool to, in part, 
>>>> deprecate an alias by replacing it with its definition. That functionality 
>>>> by itself could be provided through something like a clang-tidy, so I say 
>>>> "initially".
>>>
>>> We typically don't add new printing policies in tree without some need for 
>>> them in the project itself (otherwise this becomes a maintenance problem), 
>>> and I'm not certain I see a strong need for this to live in Clang. I think 
>>> it might be best to wait until you're closer to having a clang-tidy check 
>>> that would use this functionality before we continue with this patch. WDYT?
>>
>> I believe there is value for having this option, as without it, the 
>> `PrintingCallbacks::isScopeVisible` callback is effectively useless in 
>> practice. It won't be triggered in non-canonical types because the 
>> `ElaboratedType` represents a fixed qualification on the name.
>>
>> Note: there may be an argument for folding this functionality directly into 
>> `FullyQualifiedName` (which currently affects template-ids despite the 
>> comment on it suggesting it only is for function names). If the template 
>> name was elaborated, `FullyQualifiedName` does nothing, which seems 
>> inconsistent/incorrect.
>
> Adding @dblaikie as he might have some opinions here.

Not sure I'm quite understanding everything going on here, but I think it's a 
reasonable request that the change be observable in some way in addition 
to/other than a unit test. If not, yeah, maybe wait until it can be/the work 
where it is used is at least up on phab.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D149677/new/

https://reviews.llvm.org/D149677

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