Sven Van Caekenberghe wrote:
Magnitude weakSubclass: #WeakKeyAssociation
instanceVariableNames: 'value'
classVariableNames: ''
category: 'Collections-Support'
weakSubclass: ...
Oh! the shame....
Thanks Sven.
On 06 Sep 2014, at 16:47, Ben Coman <b...@openinworld.com> wrote:
I'd like to learn a bit more about the implementation of Weak objects. For example, I see...
Magnitude>LookupKey>Associaton >> key: aKey value: anObject
key := aKey.
value := anObject
Magnitude>LookupKey>WeakValueAssociaton >> key: aKey value: anObject
key := aKey.
self value: anObject
Magnitude>LookupKey>WeakValueAssociaton >> value: anObject
self at: 1 put: anObject
Magnitude>WeakKeyAssociation >> key: aKey value: anObject
self basicAt: 1 put: aKey.
value := anObject
The class definitions don't look any different to normal? I can see that the weak classes are doing an #at:put: for their respective weak attribute, but lots of non-weak classes also use that.
So what is it that makes WeakValueAssociaton & WeakKeyAssociation weak ?
cheers -ben
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