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
