Hi,

On Thu, Nov 8, 2018 at 10:16 AM Nicolás Ojeda Bär <
nicolas.ojeda.bar@lexifi.com> wrote:

> The main reason for the deprecation is that it is superseded by
> .cmt-based infrastructure (as exploited by e.g. merlin, ocp-index,
> etc).
>

I was thinking about the good old .annot days (finally, type information in
emacs!), as well as of the not-so-good-ones (generation of the .annot file
that took longer than the compilation of the file). By large, .cmt files
have been a improvement in my experience.

That being said, there is one use of .annot files that I have not been able
to port to .cmt files: finding (unsafe) uses of Pervasives.compare or
Pervasives.equal in a codebase. My workflow is as follow:
- generate the .annot files
- grep for Pervasives.( = )  or Pervasives.compare with sufficient context
- dismiss all calls that occur on a basic type (typically scalars)
- check all remaining calls for an use on an abstract or possible-cyclic
type

Clearly this process is not exactly efficient, and would be much better
handled by a compiler warning -- especially since the compiler would be
able to notice type equalities such as t = int coming from the context. So
this message must not be understood as a real suggestion to keep .annot
file in the end :)

-- 
Caml-list mailing list.  Subscription management and archives:
https://sympa.inria.fr/sympa/arc/caml-list https://inbox.ocaml.org/caml-list
Forum: https://discuss.ocaml.org/
Bug reports: http://caml.inria.fr/bin/caml-bugs