On 14 January 2014 14:04, <[email protected]> wrote: > While investigating https://pharo.fogbugz.com/f/cases/12640/ > PhLTitledTreeModel-refresh-called-too-often > I came across the following behaviour... > > 1. In Workspace do... "Announcer new inspect." > > 2. In that Announcer inspector do... "registry inspect." > > 3. In that SubscriptionRegistry inspector monitor the 'subscriptions' ivar > for subsequent steps. > * 'subscription' is initially an empty IdentitySet. > > 4. In the Announcer inspector do... "self open" > * window "Spy: an Announcer" appears > * 'subscriptions' now contains one AnnouncementSubscription > > 5. In the Announcer inspector again do... "self open" > * another window "Spy: an Announcer" appears > * 'subscriptions' now contains two AnnouncementSubscription > > 6. Close both Spy windows > * 'subscriptions' still contains two AnnouncementSubscription > > Is the result of step 6 expected and/or desired? Intuitively I would > expect 'subscriptions' to be empty. > Doing "Smalltalk garbageCollect" has no effect. > > maybe because AnnouncementSpy should use weak subscriptions or take care about unsubscribing once it is closed? it seems like AnnouncementSpy never receives #close message.. (because if you do it should unsubscribe) either way this is bug and should be fixed.
cheers -ben > > > -- Best regards, Igor Stasenko.
