let's have some fun and do
Object subclass: #Behavior
uses: TPureBehavior
instanceVariableNames: 'superclass methodDict format layout'
classVariableNames: 'ObsoleteSubclasses'
poolDictionaries: ''
category: 'Kernel-Classes'
proceed over the several warnings not to change Behavior and BOOM! :D
why would I do this? => we want first class layouts (most probably in 1.5)
===============================================================================
StackInterpreter VMMaker-oscog-EstebanLorenzano.139
uuid: 5aa53979-d7d8-4ca3-91fe-cfc3b4109c33
===============================================================================
Recompiling Metaclass (2041/2046) 100%
===============================================================================
Notice: Errors in script loaded from script.st
===============================================================================
==== Startup Error: MessageNotUnderstood: Dictionary>>asLowercase
Dictionary(Object)>>doesNotUnderstand: #asLowercase
ChangeSet>>noteClassStructure:
ChangeSet>>changeClass:from:
ChangeSet>>event:
WeakMessageSend>>valueWithArguments:
WeakActionSequenceTrappingErrors>>valueWithArguments:startingFrom:
in Block: [answer := each valueWithArguments: anArray]
BlockClosure>>on:do:
WeakActionSequenceTrappingErrors>>valueWithArguments:startingFrom:
WeakActionSequenceTrappingErrors>>valueWithArguments:
SystemEventManager(Object)>>triggerEvent:withArguments:
...
===============================================================================
CoInterpreter VMMaker-oscog-EstebanLorenzano.139
uuid: 5aa53979-d7d8-4ca3-91fe-cfc3b4109c33
===============================================================================
Recompiling Class class (924/2046) 45%
===============================================================================
Notice: Errors in script loaded from script.st
===============================================================================
==== Startup Error: MessageNotUnderstood: ByteSymbol>>copyTraitExpression
ByteSymbol(Object)>>doesNotUnderstand: #copyTraitExpression
ClassBuilder>>mutate:to: in Block: [:oldSubclass | ...
Array(SequenceableCollection)>>do:
ClassBuilder>>mutate:to:
ClassBuilder>>mutate:to: in Block: [:oldSubclass | ...
Array(SequenceableCollection)>>do:
ClassBuilder>>mutate:to:
ClassBuilder>>mutate:to: in Block: [:oldSubclass | ...
Array(SequenceableCollecti
...
===============================================================================
now and then the CogVM crashes due to a SEGFAULT. Under one of the old Squeak
VMs it compiles but depending on the VM version, has issues maintaining a sane
state.
So this is most certainly a VM issue and not a bug in the image side code.
As far as I remember the CogVM opens a modified image without issues...
best
cami
