JSONSax: register JSONState with GC #3384
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It turns out that ValueVector.push_back will sometimes trigger a GC, which cannot see through the external heap allocation from new JSONState. To fix this, we use new(NoGC), which will allow gc tracing through it. We also need to add a deleter for the unique_ptr that doesn't call `free()`.
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It turns out that ValueVector.push_back will sometimes trigger a GC,
which cannot see through the external heap allocation from new
JSONState.
To fix this, we use new(NoGC), which will allow gc tracing through
it. We also need to add a deleter for the unique_ptr that doesn't
call
free().Fixes #3377 (unverified, cannot reproduce).