[cfe-dev] How to tell if a NamedDecl is created by a FriendDecl?

[Eric Liu via cfe-dev]

Thanks Eric! That helps!

On Wed, May 30, 2018 at 6:33 PM Eric Fiselier <eric at efcs.ca> wrote:

> What about the lexical decl context?
>
> /Eric
>
> On Wed, May 30, 2018 at 10:26 AM, Eric Liu via cfe-dev <
> cfe-dev at lists.llvm.org> wrote:
>
>> In the following example, an "implicit" declaration of "class Y" will be
>> created for "friend class Y" (it's not marked as implicit in AST because
>> it's actually written in the friend declaration), and it will have the same
>> USR as the real declaration. I couldn't find a way to tell whether such
>> decl was created by the friend decl when only given the NamedDecl. Checking
>> its DeclContext doesn't help because the context is the namespace nx.
>>
>>    - ```
>>    namespace nx {
>>    class X {
>>      friend class Y;
>>    };
>>    class Y {};
>>    }  // namespace nx
>>    ``
>>
>> I'm wondering if this is actually possible. If not, would it make sense
>> to flag decls created by friend decls in the AST?
>>
>> Thanks,
>> Eric
>>
>> _______________________________________________
>> cfe-dev mailing list
>> cfe-dev at lists.llvm.org
>> http://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-dev
>>
>>
>
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