On Thu, 02 Aug 2007 13:50:32 +0200, Philippe Marschall wrote:
> 2007/7/31, Andreas Raab:
>> Symbol allSymbols is the correct idiom to use. Symbol allSubInstances is
>> overkill and very slow.
>
> How would you come up with a test that exploits the Symbol
> allInstances issue? It guess it involves the creation of a Symbol that
> is referenced by noone (including the code that creates it) and them
> filing it out in an ImageSegment and filing it in again.
Good question.
| s |
"thisContext has hash in it's printString"
s := thisContext printString asSymbol.
self assert: [(PointerFinder pointersTo: s) size = 2]
/Klaus
> Cheers
> Philippe
>
>> Cheers,
>> - Andreas
>>
>> nicolas cellier wrote:
>> > Philippe Marschall <philippe.marschall <at> gmail.com> writes:
>> >
>> >> Browsing through a 3.9 image I found three senders of Symbol
>> >> allInstances which store the result in a temp during image segment
>> >> export:
>> >> ImageSegment >> #copySmartRootsExport:
>> >> CodeLoader >> #exportCodeSegment:classes:keepSource:
>> >> SystemDictionary >> #writeImageSegmentsFrom:withKernel:
>> >> Is this a problem?
>> >>
>> >> Cheers
>> >> Philippe
>> >>
>> >
>> > Yes, Symbol is now an abstract class.
>> > Symbol allInstances size = 0.
>> > There are only ByteSymbol or WideSymbol in the image.
>> > If goal is to create strong pointers as mentionned in comment, then
>> Symbol
>> > allSubInstances would be better.
>> >
>> > Nicolas
>> >
>> >
>> >
>>
>>
>>
>
>
Locked
