[e-lang] multiway when-catch
reefedjib at yahoo.com
Mon Oct 29 22:36:22 EDT 2007
----- Original Message -----
From: "Kevin Reid" <kpreid at mac.com>
To: "Discussion of E and other capability languages"
<e-lang at mail.eros-os.org>
Sent: Monday, October 29, 2007 5:43 PM
Subject: Re: [e-lang] multiway when-catch
> On Oct 29, 2007, at 17:50, Rob Withers wrote:
>> % eventualRef
>> "Add an eventualRef to the list"
>> refs add: eventualRef.
>> refs := OrderedCollection new.
>> whenResolved: reactor
>> | countDown |
>> countDown := refs size.
>> refs do: [:each |
>> each whenResolved: [:aRef |
>> countDown := countDown - 1.
>> countDown <= 0
>> ifTrue: [reactor valueWithArguments: refs asArray]]].
> Okay, this looks reasonable, though it's more mutable than is good
> style. However, whenResolved is not a primitive operation on
> references. Look at jsrc/org/erights/e/elib/ref/Ref.java for the
> implementation of whenResolved.
I see that, now that you point it out. I am sure there is a good reason for
it. Is it because you want to limit the MirandaMethods defined, and
__whenMoreResolved handles the behavior of what you want, so whenResolved
and whenBroken are specified in terms of __whenMoreResolved? Or are there
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