On 17 January 2013 21:14, Eliot Miranda <eliot.miranda at gmail.com> wrote:
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> On Thu, Jan 17, 2013 at 12:49 PM, Frank Shearar <frank.shearar at gmail.com>
> wrote:
>>
>> I ran a MessageTally and was told that False doesn't understand #-.
>> This, it turns out, was because MessageTally >> #computeGCStats
>> assumes that all VM parameters are Number-like. Changing the method to
>> this:
>>
>> computeGCStats
>>         "Compute the deltas in the GC stats.  Serves for reporting,
>> hibernating and unhibernating."
>>         SmalltalkImage current getVMParameters keysAndValuesDo:
>>                 [ :idx :gcVal |
>>                 gcVal isNumber ifTrue: [ "This is the new line"
>>                         gcVal ifNotNil: [gcStats at: idx put: (gcVal -
>> (gcStats at: idx))]]]
>>
>> lets the MessageTally run to completion. Now this might be because I'm
>> running a Cog r.2672 and a 4.3 image. I don't know.
>>
>> My question is this: should SmalltalkImage current getVMParameters
>> keys be a collection of Numbers? Or should MessageTally defend against
>> things not being numbers? Or have I just stumbled across a bad
>> image/VM combination?
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> Both of the last two.  This was fixed in 4.4 a few weeks ago.
> The VM change was to answer a boolean for parameter 65, this being whether
> the VM supports multiple bytecode sets or not.

My apologies; I should have remembered this :(

Thanks, Eliot.

frank

> --
> best,
> Eliot
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