Fix unlikely but possible race in `WeakValueDictionary`
It may happen that value in `valueArray` could have been already
collected by the GC but #clearDeadSlots have not yet been called.
When this happened, `#at:ifAbsentPut:` returned tombstone rather
than updating the dictionary with value from block.
This commit fixes this by checking whether `valueArray` contain
the tombstone and if so, clearing up the dead slots and restarting
the operation. HTH.
"
COPYRIGHT (c) 2016 by eXept Software AG
All Rights Reserved
This software is furnished under a license and may be used
only in accordance with the terms of that license and with the
inclusion of the above copyright notice. This software may not
be provided or otherwise made available to, or used by, any
other person. No title to or ownership of the software is
hereby transferred.
"
"{ Package: 'stx:libbasic' }"
"{ NameSpace: Smalltalk }"
HaltInterrupt subclass:#ObsoleteMethodCallWarning
instanceVariableNames:''
classVariableNames:''
poolDictionaries:''
category:'Kernel-Exceptions-Control'
!
!ObsoleteMethodCallWarning class methodsFor:'documentation'!
copyright
"
COPYRIGHT (c) 2016 by eXept Software AG
All Rights Reserved
This software is furnished under a license and may be used
only in accordance with the terms of that license and with the
inclusion of the above copyright notice. This software may not
be provided or otherwise made available to, or used by, any
other person. No title to or ownership of the software is
hereby transferred.
"
!
documentation
"
Raised when an obsolete method is called.
Thus used to do a halt; now this separate exception is raised to make it
easier to separately handle this.
Still a kind of programmed debug-breakpoint.
[author:]
Claus Gittinger
"
! !
!ObsoleteMethodCallWarning class methodsFor:'initialization'!
initialize
NotifierString := 'Obsolete method called'.
"
self initialize.
"
! !
!ObsoleteMethodCallWarning class methodsFor:'documentation'!
version
^ '$Header$'
!
version_CVS
^ '$Header$'
! !
ObsoleteMethodCallWarning initialize!