Hi Ben,
i don't know exactly what is happening here, but (size vs. inpsect)
testObject := 'TEST'.
ref1 := { testObject. nil }.
ref2 := { ref1 }.
ref3 := { ref2 }.
ref1 at: 2 put: ref3. "note the reference loop this creates"
testObject pointersTo size
-> 5
works. So, the problem is not in #pointersTo but inspecting the result
array has one or more recursive self calls
to its elements.
2015-01-30 3:59 GMT+01:00 Ben Coman <b...@openinworld.com>:
>
> I am revisiting my PointerDetective tool, which relies heavily on
> ProtoObject>>pointersTo.
>
> The example I recorded at the repository home page is currently locking &
> crashing the image due to #pointersTo being unable to handle the circular
> reference. This "must" have been working on Windows at least around August
> 2014, but I've been unable to reproduce a working case since my Windows
> laptop died and I've since moved to OSX.
>
> On OSX, in a fresh image 40467 and latest vm 402, the following crashes
> the image...
>
> testObject := 'TEST'.
> ref1 := { testObject. nil }.
> ref2 := { ref1 }.
> ref3 := { ref2 }.
> ref1 at: 2 put: ref3. "note the reference loop this creates"
> testObject pointersTo inspect.
>
> OSX Memory Monitor shows memory usage shoot from 50MB to >500MB in a few
> seconds, then usually the image crashes, but sometimes just hangs.
>
> I've logged...
> https://pharo.fogbugz.com/default.asp?14827
>
> cheers -ben
>
>
