----- Original Message ----- 
From: "Andreas Raab" <andreas.raab at gmx.de>
To: "The general-purpose Squeak developers list" 
<squeak-dev at lists.squeakfoundation.org>
Sent: Sunday, March 08, 2009 9:10 PM
Subject: [squeak-dev] Re: [ANN] Preference pragmas


> spyPriority
> <preference: 'Spy Priority'
> category: 'Debug'
> description: 'Sets the priority for MessageTally'
> type: #Number>
>
> spyPriority: aNumber
> SpyPriority := aNumber truncated min: 79 max: 40.
>
> This is a natural and straightforward guard that avoids complicating the 
> preference specification.
>

The use of "extended" pragmas is interesting, although, to my mind it 
doesn't address the problem/benefit of complex preference values 
(non-literal).

As for the value guard, good, but the ranges etc. are not exposed to 
potential tools (would be nice to NOT be able to input 99, for instance).

I think, at this stage, I still believe the "modelling of a preference" 
approach more flexible.

Thoughts welcome, naturally.

Regards, Gary.