v0: don't ignore recursion limit failures from any push_depth calls.
#52
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Looks reasonable to me, thanks! |
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#49 introduced some inconsistencies (see #49 (comment)), but also left the door open for non-backref-induced stack overflows, which I'm guessing we want to avoid.
See the
recursion_limit_backref_free_bypasstest for an example of a long symbol that used to introduce a stack overflow, through sheer nested types (a long string ofRi.e.&references).