[Top][All Lists]

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [PATCH] Implement SRFI-111 Boxes

From: Ludovic Courtès
Subject: Re: [PATCH] Implement SRFI-111 Boxes
Date: Tue, 25 Mar 2014 18:01:37 +0100
User-agent: Gnus/5.130007 (Ma Gnus v0.7) Emacs/24.3 (gnu/linux)

Andy Wingo <address@hidden> skribis:

> On Fri 24 Jan 2014 11:57, address@hidden (Ludovic Courtès) writes:
>> address@hidden (Taylan Ulrich "Bayırlı/Kammer") skribis:
>>> Has it been considered to coalesce the box type with Guile's "variable"
>>> type?  I can see two concrete differences:
>>> * External representation (*not* specified by SRFI-111)
>>> * Variables can be "unbound" (empty), boxes can't
>>> So we could get away with making the box API consist of aliases to a
>>> subset of the variable API and still conform to SRFI-111.
>> Even though both types are box-like, they represent conceptually
>> different things, so I think it’s better to keep them disjoint.
> Why do you think so?  To me, Guile's variables are boxes, and the
> ability to make a variable unbound is a Guile extension.

Tu put it differently, I don’t think it would buy us anything to make
variable SRFI-111 boxes.  However, it could perhaps break code, and
would not allow for a separate type printer, which is useful.


reply via email to

[Prev in Thread] Current Thread [Next in Thread]