[Vis] Stackoverflow in visualisation

[anthonyanjorin]

In GameOfLife/Error.msl this causes a stack overflow in the visualisation:

pattern aLiveCell {
    cell:Cell {
        .alive : true
    }
} when forbid aLiveCell

[maxischm]

Ok, I think this is because the pattern has itself as condition and when copying, the Stackoverflow occurs. But, does it make sense to have a pattern as its own condition?

EDIT: I just saw that this is detected by the validator and an error is shown. I think we only have to stop the visualisation from trying to flatten this pattern then.

[anthonyanjorin]

Exactly - it doesn’t make sense at all. But a stackoverflow is pretty nasty (eclipse breaks down). The vis should just catch this and not try to visualise it.