xbolva00 added a comment.

Ping @arthur.j.odwyer



================
Comment at: clang/include/clang/Basic/DiagnosticGroups.td:158
+def DeprecatedCopy : DiagGroup<"deprecated-copy", 
[DeprecatedCopyUserProvided]>;
+def DeprecatedCopyDtor : DiagGroup<"deprecated-copy-dtor", 
[DeprecatedCopyDtorUserProvided]>;
 def DeprecatedDeclarations : DiagGroup<"deprecated-declarations">;
----------------
Quuxplusone wrote:
> xbolva00 wrote:
> > Quuxplusone wrote:
> > > If we're going to provide these options at all, I think it would be more 
> > > grammatical to call them `-Wdeprecated-copy-with-deleted-copy` and 
> > > `-Wdeprecated-copy-with-deleted-dtor`.
> > > 
> > > The existing code is already confusing by talking about a "copy dtor" as 
> > > if that's a thing; I think it makes it even worse to talk about 
> > > "deprecated copy user provided," since the actually deprecated thing is 
> > > the //implicitly generated// copy.
> > > 
> > > I get that we're trying to be terse, and also somewhat hierarchical in 
> > > putting all the `-Wdeprecated-copy`-related warnings under 
> > > `-Wdeprecated-copy-foo-bar`; but the current names are too far into the 
> > > ungrammatical realm for me personally.
> > Yeah, better names are welcome :)
> Do the current names match existing practice in GCC or anything?
> I continue to opine that these options are poorly named. My best suggestion is
> `deprecated-copy`, `deprecated-copy-with-dtor`, 
> `deprecated-copy-with-deleted-copy`, `deprecated-copy-with-deleted-dtor` — 
> operating on the (wrong?) assumption that absolutely the only difference 
> between "user-declared" and "user-provided" corresponds to "user-declared as 
> deleted."
> 
> Even if everything else remains the same, the internal identifier 
> `warn_deprecated_copy_dtor_operation_user_provided` should certainly be 
> `warn_deprecated_copy_operation_dtor_user_provided` — the phrase that goes 
> together is "copy operation", not "dtor operation".
> 
> Your "deprecated-dtor-user-provided.cpp" passes 
> `-Wdeprecated-copy-dtor-user-provided`, but the message text talks about 
> "user-//declared//." Shouldn't the spelling of the option reflect the wording 
> of the message text? This isn't important from the POV of someone who's just 
> going to look at the message text and fix their code, but it's important from 
> the POV of someone who's going to use `-Wno-` and wants to know exactly which 
> bad situations they're ignoring. (Also, the name of the file should match the 
> spelling of the option.)
Yeah, deprecated-copy and deprecated-copy-dtor is already defined by GCC.

I think deprecated-copy-user-provided-copy and 
deprecated-copy-user-provided-dtor could be good solution here, it is also 
quite easy to follow implementation of the checking logic in Sema with these 
names.


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D79714/new/

https://reviews.llvm.org/D79714

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