[squeak-dev] true hash ^20
Chris Cunnington
smalltalktelevision at gmail.com
Thu May 10 16:15:44 UTC 2012
"Not quite. It's only a number that is guaranteed to be constant
across the live time of the object. it does not uniquely identify
the object."
x := (SystemNavigation default allObjectsSelect: [: obj | obj
identityHash = nil identityHash ]) at: 50.
y := (SystemNavigation default allObjectsSelect: [: obj | obj
identityHash = nil identityHash ]) at: 60
x identityHash 3840
y identityHash 3840
x (MessageNode>>#transform: "a CompiledMethod(3840)")
y 4 August 2005
x identityHash == y identityHash true
Point made.
Chris
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