Hi clement

let us know how we can help because he all want the new closures.

Stef

On Fri, Sep 22, 2017 at 11:11 AM, Clément Bera <[email protected]> wrote:
> I totally agree with you on this.
>
> For a while I had a CI job that was trying to execute Sista on the latest
> version of Pharo and VM, and sent me a mail when something had gone wrong. I
> disabled it when there was problems on the CI, I will make it work again.
> This way I am notified and I can update the Sista code as Pharo 7 is
> developed. That helps a lot.
>
> On the Pharo CI the time to run tests matters hence I will try to find
> another solution to test full block and the other bytecode set. I did not do
> that because I hope I can change Pharo to use full block by default soon,
> but since they're broken...
>
> Regards
>
>
>
> On Fri, Sep 22, 2017 at 10:58 AM, Holger Freyther <[email protected]>
> wrote:
>>
>>
>> > On 22. Sep 2017, at 13:33, Clément Bera <[email protected]> wrote:
>>
>>
>> Hi Clement,
>>
>>
>> > Sista will work for the release of Pharo 7 as it did for Pharo 6 and 6.1
>> > but it won't work every day during the alpha of Pharo 7 and no sane
>> > framework developer can guarantee that. Sista does not work currently in
>> > Pharo 7 due to some changes breaking the full block closures, I am going to
>> > fix it but even then in the incoming months there is a high chance that
>> > another change in Pharo 7 breaks it again, so I would never recommend to 
>> > use
>> > it with the alpha.
>>
>>
>> thank you for your response. I didn't expect it to work (after all you
>> label it "Alpha" and I ran into issues already) but my intention for the
>> mail was a bit different. Let me try to briefly explain my motivation. In my
>> experience:
>>
>> (1) Software not executed stops to work (or never "worked")
>> (2) The earlier breakage is detected the less expensive it is to fix.
>>
>> My assumption is that Opal is part of Pharo and that we look at a
>> regression of the Opal compiler and/or how it interacts with the rest of the
>> image. As it might be easier to understand/fix it now than later I brought
>> it up. From my point of view I wonder if we want to add ~50s to the CI
>> process to execute:
>>
>> CompilationContext bytecodeBackend: OpalEncoderForSistaV1.
>> CompilationContext usesFullBlockClosure: true.
>> OpalCompiler recompileAll.
>>
>>
>> Is there any value in doing so?
>>
>>
>> cheers
>>
>>         holger
>>
>>
>> PS
>>
>> (2) The intuitive explanation is that the cost of analysis is a lot lower
>> the earlier the problem is detected. There are fewer potential changes that
>> lead to the breakage and the people involved will remember what/why they did
>> reducing the cost of fixing. Ideally things are found to be broken and fixed
>> before integration.
>>
>> Maybe an analogy is old-school aviation navigation.. the earlier a mistake
>> is found in navigation the closer to the original course...
>
>

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