Strange issue. I found one of the tests is failing, run from the TestRunner. RefsTest>>#testBlockClosure is failing for an unknown reason. I ran the tests from the browser menu and they all pass. There is no failure running or debugging from the Browser. Very strange.

K, r

On 7/18/20 7:50 AM, Robert Withers via Squeak-dev wrote:

> Hi everyone,
>
> Thanks to a response on the Squeak Slack channel, I was able to get most of this done by calling a pre-existing method. Please run:
>
>> Installer ss project: 'Cryptography'; install: 'PromisesLocal'.
>
> Oh! Marcel, this is precisely what I needed, it is already done! I changed the EventualMessageSend>>#value to call this code you shared. StandardToolSet debugException: ex.I run this script to test:(1 eventual / 0) explore.
> 1 eventual explore.The first line results in an exception and we get a exception notifier and also an explorer on the PromisERef. The promise is resolved to an exception and it #becomes a BrokenERef.
>
> In looking into the exception notifier and the exception browser is that the top frame is the signaler context. Perfect.
>
> The second line validates that the event loop is unblocked. This results in a second inspector on a near value of 1.
>
> The only remaining work is that when proceeded, the exception will reschedule the stack into the vat's queue.
>
> Kindly,
> rabbit
>
> On 7/12/20 1:38 PM, Robert Withers wrote:
>
>> On 6/26/20 2:37 PM, Robert Withers wrote:
>>
>>> On 6/26/20 1:55 PM, Robert Withers wrote:
>>>
>>>> Closer to my heart, at this point are my questions and request for help
>>>> in splitting off a pruned stack for an exception, to unblock the event
>>>> loop yet still allow introspection of an error, or a halt. Here is what
>>>> I wrote. Tim, might you be able to advise me here?
>>>>
>>>> *
>>>>
>>>> lost
>>>>
>>>> *
>>>>
>>>> http://lists.squeakfoundation.org/pipermail/squeak-dev/2020-June/210452.html
>>
>> The requirements for exceptions within an event loop are:
>>
>> - Copy stack
>> - Restart eventLoop
>> - Prune stack/Create Continuation
>> - Open Debugger
>> - When Proceeded, reschedule EventualMessageSend, on the Continuation, in the vat queue.
>>
>> Would someone please help me here? I am a little lost. I appreciate you!
>>
>> Kindly,
>> rabbit
>>
>>> Not only do I want this, but the short stack, when Proceeded, should reschedule an eventual message on the event loop to reintroduce this short stack back into event loop land. As such, i was thinking perhaps a continuation could enable this. Liekwise, when a exception is thrown, do these steps:
>>>
>>>> - Modify the Vat to have a an active stack, a priority queue and a vat-aware continuation pool.
>>>> - Copy the stack. Does this mean create a special continuation, that is event loop aware?
>>>> - Resume the event loop by discarding the previous event handling exception.
>>>> - Prune the stack (of the continuation). above and below. Site of signaled exception.
>>>> - Open a Debugger
>>>> - On Proceed, reschedule the eventual message in the Vat's queue.
>>>
>>> I have no idea what B looks like. Outside of my experience doing continuations and stack manipulation and pool scheduling. I need a VatSemaphore (please peruse the ResultSemaphore in PromisesRemote). I pray someone may swoop in with solutions!
>>>
>>> Kindly,
>>> rabbit
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