New draft (#8) of and new "last call" for SRFI 189: Maybe and Either: optional container types Arthur A. Gleckler 02 Jul 2020 05:56 UTC
Re: New draft (#8) of and new "last call" for SRFI 189: Maybe and Either: optional container types Shiro Kawai 02 Jul 2020 12:50 UTC
Re: New draft (#8) of and new "last call" for SRFI 189: Maybe and Either: optional container types John Cowan 02 Jul 2020 13:19 UTC
Re: New draft (#8) of and new "last call" for SRFI 189: Maybe and Either: optional container types Marc Nieper-Wißkirchen 07 Jul 2020 14:23 UTC
Re: New draft (#8) of and new "last call" for SRFI 189: Maybe and Either: optional container types John Cowan 07 Jul 2020 20:32 UTC
Re: New draft (#8) of and new "last call" for SRFI 189: Maybe and Either: optional container types Marc Nieper-Wißkirchen 08 Jul 2020 14:27 UTC
Re: New draft (#8) of and new "last call" for SRFI 189: Maybe and Either: optional container types Wolfgang Corcoran-Mathe 08 Jul 2020 19:47 UTC
Re: New draft (#8) of and new "last call" for SRFI 189: Maybe and Either: optional container types Marc Nieper-Wißkirchen 08 Jul 2020 20:21 UTC
Re: New draft (#8) of and new "last call" for SRFI 189: Maybe and Either: optional container types John Cowan 09 Jul 2020 04:32 UTC
Re: New draft (#8) of and new "last call" for SRFI 189: Maybe and Either: optional container types Marc Nieper-Wißkirchen 09 Jul 2020 09:30 UTC
Re: New draft (#8) of and new "last call" for SRFI 189: Maybe and Either: optional container types John Cowan 10 Jul 2020 14:05 UTC
Re: New draft (#8) of and new "last call" for SRFI 189: Maybe and Either: optional container types Marc Nieper-Wißkirchen 10 Jul 2020 14:39 UTC
Re: New draft (#8) of and new "last call" for SRFI 189: Maybe and Either: optional container types Wolfgang Corcoran-Mathe 10 Jul 2020 17:30 UTC
Re: New draft (#8) of and new "last call" for SRFI 189: Maybe and Either: optional container types Marc Nieper-Wißkirchen 10 Jul 2020 17:50 UTC
Re: New draft (#8) of and new "last call" for SRFI 189: Maybe and Either: optional container types Wolfgang Corcoran-Mathe 11 Jul 2020 15:22 UTC
Re: New draft (#8) of and new "last call" for SRFI 189: Maybe and Either: optional container types Marc Nieper-Wißkirchen 11 Jul 2020 15:30 UTC
Re: New draft (#8) of and new "last call" for SRFI 189: Maybe and Either: optional container types Wolfgang Corcoran-Mathe 11 Jul 2020 16:17 UTC
Re: New draft (#8) of and new "last call" for SRFI 189: Maybe and Either: optional container types Alex Shinn 11 Jul 2020 22:20 UTC
Re: New draft (#8) of and new "last call" for SRFI 189: Maybe and Either: optional container types Marc Nieper-Wißkirchen 11 Jul 2020 22:29 UTC
Re: New draft (#8) of and new "last call" for SRFI 189: Maybe and Either: optional container types Wolfgang Corcoran-Mathe 12 Jul 2020 03:35 UTC
Re: New draft (#8) of and new "last call" for SRFI 189: Maybe and Either: optional container types Marc Nieper-Wißkirchen 11 Jul 2020 16:33 UTC
Re: New draft (#8) of and new "last call" for SRFI 189: Maybe and Either: optional container types John Cowan 11 Jul 2020 18:44 UTC
Re: New draft (#8) of and new "last call" for SRFI 189: Maybe and Either: optional container types Marc Nieper-Wißkirchen 11 Jul 2020 19:26 UTC
Re: New draft (#8) of and new "last call" for SRFI 189: Maybe and Either: optional container types Arthur A. Gleckler 11 Jul 2020 19:59 UTC
Re: New draft (#8) of and new "last call" for SRFI 189: Maybe and Either: optional container types Marc Nieper-Wißkirchen 11 Jul 2020 20:06 UTC
Re: New draft (#8) of and new "last call" for SRFI 189: Maybe and Either: optional container types Arthur A. Gleckler 11 Jul 2020 20:08 UTC
Re: New draft (#8) of and new "last call" for SRFI 189: Maybe and Either: optional container types Marc Nieper-Wißkirchen 14 Jul 2020 09:13 UTC
Re: New draft (#8) of and new "last call" for SRFI 189: Maybe and Either: optional container types John Cowan 14 Jul 2020 21:15 UTC
Re: New draft (#8) of and new "last call" for SRFI 189: Maybe and Either: optional container types Alex Shinn 15 Jul 2020 00:07 UTC

Re: New draft (#8) of and new "last call" for SRFI 189: Maybe and Either: optional container types Marc Nieper-Wißkirchen 11 Jul 2020 20:06 UTC

Am Sa., 11. Juli 2020 um 21:59 Uhr schrieb Arthur A. Gleckler
<xxxxxx@speechcode.com>:
>
> On Sat, Jul 11, 2020 at 12:26 PM Marc Nieper-Wißkirchen <xxxxxx@nieper-wisskirchen.de> wrote:
>
>>
>> We can add this to the proposed change to SRFI 145. And make "assume =
>> assert" in case of the debug feature identifier set.
>
>
> I'm afraid that SRFI 145 has been finalized, which means that the only changes to it allowed are corrections to errors.  A new SRFI that is a revised version of SRFI 145 is the alternative.

Yes, indeed. I have been thinking of a replacement of SRFI 145, which
will include John's idea to pull in "assert" from R6RS and my idea of
linking "assume" to "assert" when a kind of debug flag is set (which
should be the default).

In error situations, which can, in principle be detected (like in the
maybe-if case of SRFI 189), implementations are then encouraged to use
"assume" (or even forced by the wording of the respective SRFI), which
will give (a) the semantics John is looking for in normal runs and (b)
allows a portable mode, in which the optimizer can work much more
aggressively without changing the semantics.