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) 2002 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' }"
NumberFormatError subclass:#RomanNumberFormatError
instanceVariableNames:''
classVariableNames:''
poolDictionaries:''
category:'Magnitude-Numbers'
!
!RomanNumberFormatError class methodsFor:'documentation'!
copyright
"
COPYRIGHT (c) 2002 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 directly, if a roman number cannot be converted to a number.
(invalid character or empty string).
Also the superclass of more specific errors:
BadRomanNumberFormatError
- raised if characters are ok, but out of range (such as MMMMMM)
NaiveRomanNumberFormatNotification
- raised if a 4 or 9 is encoded as naive roman number (such as IIII)
"
! !
!RomanNumberFormatError class methodsFor:'documentation'!
version
^ '$Id: RomanNumberFormatError.st 10808 2012-05-09 15:04:12Z vranyj1 $'
!
version_SVN
^ '$Id: RomanNumberFormatError.st 10808 2012-05-09 15:04:12Z vranyj1 $'
! !