Tab Crashing Fixes#203
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The CurrentJsonPath method was causing tab crashes when parsing large JSON files. These seem to occur when the JSON parser was running at the same time as Nursery Strings were moved to Tenured space. My feeling is that the JSONPath strings were being created faster than they could be moved out of the nursery, causing some nasty segfaults. A quick for this appears to be to create the JSONPath strings directly in the Tenured heap. This is probably not ideal, as these strings are only used to create TaintOperations. This is probably worth revisiting to see if there is a better solution. There seems to be a lot of upcoming upstream changes related to String GC, so probably worth waiting for the next release (see e.g. 7e2b43b)
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Fixing a few bugs introduced by recent changes:
I also found the
dump()method which was handy to debug the JSONParser issue. I've added a TAINT_DEBUG check to it so it can be enabled which needed a complete debug build.