Re: Structured programs (long)

From: H. S. Lahman (h.lahman_at_verizon.net)
Date: 04/23/04


Date: Fri, 23 Apr 2004 16:11:36 GMT

Responding to Hey...

> Your arguments (and hence the questions above) are based on the premise
> that in order to meet new program requirements functional programmers dive
> in at any point they care in the dependency graph and start modifying the
> behaviour of functions (changing their specifications in effect), This is
> not so, so your questions above are un-answerable, except to say as a
> general rule FPers do "none of the above" in the course of maintaining
> their programs. In my facile example I was quite careful to preserve
> wobbler, precisely *because* of the allegedly non-existant hierarchical
> dependency of implementations (not specifications BTW, as you stated in an
> earlier post).

As I expected, you don't have an alternative construction technique to
that of my example that will avoid the hierarchical dependence of wobble
on boggle during maintenance.

*************
There is nothing wrong with me that could
not be cured by a capful of Drano.

H. S. Lahman
hsl@pathfindermda.com
Pathfinder Solutions -- Put MDA to Work
http://www.pathfindermda.com
(888)-OOA-PATH



Relevant Pages

  • Re: Observer pattern limitations
    ... You refer to a notification propagation. ... so a container of observers is an observer. ... some problems have complex dependency ... Therefore the dependency graph has no need to persist. ...
    (comp.object)
  • Re: Observer pattern limitations
    ... The "eagerly propagate dirtiness through the dependency graph" ... Therefore Y and Z are marked as dirty. ...
    (comp.object)
  • Re: Observer pattern limitations
    ... The nodes of the dependency graph are objects or members ... things don't exist because of B (determinism). ... The observer pattern is often used to solve this ...
    (comp.object)
  • Re: Observer pattern limitations
    ... The nodes of the dependency graph are objects or members ... It is possible to implement a general solution to the dependency graph ... Observer pattern guaranties that under certain ...
    (comp.object)
  • Re: Observer pattern limitations
    ... The nodes of the dependency graph are objects or members ... any substance in what you are saying. ... which the observer pattern does. ...
    (comp.object)

Loading