Re: master 1d9d07fb00e 3/3: (cl--typeof-types): Rework to fix some regressions

[Andrea Corallo]

Stefan Monnier via Mailing list for Emacs changes <emacs-diffs@gnu.org>
writes:

> branch: master
> commit 1d9d07fb00e6b62641c07af68f986e700b5f6cee
> Author: Stefan Monnier <monnier@iro.umontreal.ca>
> Commit: Stefan Monnier <monnier@iro.umontreal.ca>
>
>     (cl--typeof-types): Rework to fix some regressions
>     
>     Initialize the variables directly in their declaration, so
>     there no time where they exist but aren't yet initialized.
>     This also allows us to mark `cl--typeof-types` as a `defconst` again.
>     
>     More importantly, specify the DAG by direct supertypes rather
>     than direct subtypes.  This is slightly less compact, but it's
>     necessary to let us specify the *order* of the supertypes,
>     which is necessary for example to preserve the desired ordering
>     of methods when several methods can be applied.

Hi Stefan,

I'm not sure I understand.  Is some code relying on the "order" of the
supertypes?  Are these the regression you are mentioning?

Must say I'm surprised supertypes can have an "order" in first place.

Thanks

  Andrea