bug#5605: etags of emacs 23.1 misses template specializations

bug#5605: etags of emacs 23.1 misses template specializations

[Bob]

[-- Attachment #1.1: Type: text/plain, Size: 553 bytes --]

Run "etags" of emacs 23.1 on the attached "Foo.H" file . 

 

The resulting TAGS file indicates "Foo.H" is empty.

 

Seems to me it should show two definitions for the 2 specializations of
`Worker`. 

 

----------- TAGS --------------
^L

Foo.H,0

----------------------------------

 

----------- Foo.H ----------------

template<

  class _A,

  class _B = Select<_A>::Result

  >

class Worker;

 

 

template<class _A>

class Worker<_A,int>

{

};

 

template<class _A>

class Worker<_A,double>

{

};

---------------------------------------


[-- Attachment #1.2: Type: text/html, Size: 3302 bytes --]

[-- Attachment #2: Foo.H --]
[-- Type: text/plain, Size: 173 bytes --]


template<
  class _A,
  class _B = Select<_A>::Result
  >
class Worker;


template<class _A>
class Worker<_A,int>
{
};

template<class _A>
class Worker<_A,double>
{
};

  

bug#5605: etags of emacs 23.1 misses template specializations

[Lars Ingebrigtsen]

"Bob" <purchasebyemail1@comcast.net> writes:

> Run "etags" of emacs 23.1 on the attached "Foo.H" file . 
>
> The resulting TAGS file indicates "Foo.H" is empty.
>
> Seems to me it should show two definitions for the 2 specializations of `Worker`. 

(I'm going through old bug reports that unfortunately got no response at
the time.)

I don't know whether it should or not, but the behaviour of etags in
Emacs 28 is still the same -- it produces an empty TAGS file.

-- 
(domestic pets only, the antidote for overdose, milk.)
   bloggy blog: http://lars.ingebrigtsen.no

bug#5605: etags of emacs 23.1 misses template specializations

[Eli Zaretskii]

> From: Lars Ingebrigtsen <larsi@gnus.org>
> Date: Thu, 03 Jun 2021 11:15:35 +0200
> Cc: 5605@debbugs.gnu.org
> 
> "Bob" <purchasebyemail1@comcast.net> writes:
> 
> > Run "etags" of emacs 23.1 on the attached "Foo.H" file . 
> >
> > The resulting TAGS file indicates "Foo.H" is empty.
> >
> > Seems to me it should show two definitions for the 2 specializations of `Worker`. 
> 
> (I'm going through old bug reports that unfortunately got no response at
> the time.)
> 
> I don't know whether it should or not, but the behaviour of etags in
> Emacs 28 is still the same -- it produces an empty TAGS file.

'etags's support for templates is very rudimentary, it doesn't
currently identify a class if its name is followed by <foo,bar>.
Patches welcome.