From mboxrd@z Thu Jan  1 00:00:00 1970
X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on polar.synack.me
X-Spam-Level: 
X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00,FREEMAIL_FROM
	autolearn=unavailable autolearn_force=no version=3.4.4
X-Received: by 10.107.57.4 with SMTP id g4mr9948978ioa.18.1521657830460;
        Wed, 21 Mar 2018 11:43:50 -0700 (PDT)
X-Received: by 2002:a9d:4045:: with SMTP id o5-v6mr275028oti.6.1521657829938;
 Wed, 21 Mar 2018 11:43:49 -0700 (PDT)
Path: 
 eternal-september.org!reader01.eternal-september.org!reader02.eternal-september.org!feeder.eternal-september.org!news.uzoreto.com!weretis.net!feeder6.news.weretis.net!feeder.usenetexpress.com!feeder-in1.iad1.usenetexpress.com!border1.nntp.dca1.giganews.com!nntp.giganews.com!199-v6no2156282itl.0!news-out.google.com!j10-v6ni1241ite.0!nntp.google.com!199-v6no2156279itl.0!postnews.google.com!glegroupsg2000goo.googlegroups.com!not-for-mail
Newsgroups: comp.lang.ada
Date: Wed, 21 Mar 2018 11:43:49 -0700 (PDT)
In-Reply-To: <2d1f392f-e747-42aa-8938-d6538d5b9934@googlegroups.com>
Complaints-To: groups-abuse@google.com
Injection-Info: glegroupsg2000goo.googlegroups.com;
 posting-host=176.130.29.212;
 posting-account=6yLzewoAAABoisbSsCJH1SPMc9UrfXBH
NNTP-Posting-Host: 176.130.29.212
References: <p8lpr4$bgl$1@dont-email.me>
 <7789c58e-ca36-44a2-8818-009eface4a3e@googlegroups.com>
 <926b83eb-6cce-417d-9c17-df6be2bc98d5@googlegroups.com>
 <p8t9ri$cq3$1@dont-email.me>
 <2d1f392f-e747-42aa-8938-d6538d5b9934@googlegroups.com>
User-Agent: G2/1.0
MIME-Version: 1.0
Message-ID: <7e240e01-f6e2-40dc-a7da-d430d1c92f67@googlegroups.com>
Subject: Re: Ada-Oriented GUI
From: briot.emmanuel@gmail.com
Injection-Date: Wed, 21 Mar 2018 18:43:50 +0000
Content-Type: text/plain; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable
Xref: reader02.eternal-september.org comp.lang.ada:51104
Date: 2018-03-21T11:43:49-07:00
List-Id: <comp.lang.ada>


I was also working on similar similar at the time (starting with promises (=
https://github.com/briot/Ada-promises, though there's also a branch there w=
ere I started to look at reactive programming).

For me, the biggest obstacles were the need to instantiate a lot of generic=
s, because the streams are associated with data, then get combined to creat=
e other types of data, and so on. So we ended up with a soup of instantiati=
ons (on the user side), which I had not quite managed to tame.

The lack of anonymous subprograms was not a very significant issue to me, t=
hough indeed having some simple "anonymous expression functions" for the si=
mple transformation cases would be nice.

But indeed I agree there's something to be done in that area.