Re: XS: possible to have side effects?

Subject: Re: XS: possible to have side effects?
From: gtn@xxxxxxxxxxxx (Gavin Nicol)
Date: Mon, 9 Jun 1997 09:28:53 -0400

>The fundamental idea is that expression language objects of types that can
>be mutated (strings, lists and vectors) have a dynamic read-only attribute,
>just as they now have a dynamic type (the PostScript language has a similar
>idea).  Mutating a read-only object is an error. 

This is an interesting idea, and, I believe workable. You could introduce
aother function that, given an expression, returns a writeable copy,
and have all objects be read-only by default...



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Current Thread
XS: possible to have side effects? James Clark - Fri, 6 Jun 1997 23:41:29 -0400 (EDT) Paul Prescod - Sat, 7 Jun 1997 12:09:13 -0400 (EDT) Gavin Nicol - Mon, 9 Jun 1997 09:27:56 -0400 (EDT) <= <Possible follow-ups> James Clark - Sat, 7 Jun 1997 18:11:19 -0400 (EDT) James Clark - Sun, 8 Jun 1997 02:49:50 -0400 (EDT) G. Ken Holman - Sun, 8 Jun 1997 14:22:16 -0400 (EDT) G. Ken Holman - Sun, 8 Jun 1997 14:37:09 -0400 (EDT)

Current Thread

XS: possible to have side effects?
- James Clark - Fri, 6 Jun 1997 23:41:29 -0400 (EDT)
  - Paul Prescod - Sat, 7 Jun 1997 12:09:13 -0400 (EDT)
  - Gavin Nicol - Mon, 9 Jun 1997 09:27:56 -0400 (EDT) <=
  - <Possible follow-ups>
  - James Clark - Sat, 7 Jun 1997 18:11:19 -0400 (EDT)
  - James Clark - Sun, 8 Jun 1997 02:49:50 -0400 (EDT)
    - G. Ken Holman - Sun, 8 Jun 1997 14:22:16 -0400 (EDT)
  - G. Ken Holman - Sun, 8 Jun 1997 14:37:09 -0400 (EDT)

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