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gh-116098: Clean up frame allocation code and remove the invalid sneaky frame test - #116687
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brandtbucher merged 2 commits intoMar 12, 2024
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We should also remove the corresponding assert(frame->owner != FRAME_CLEARED) statements, especially since FRAME_CLEARED was never a valid member of enum _frameowner (it’s from enum _framestate).
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After a discussion with @brandtbucher , we believe the test is not testing what it's supposed to anymore. No new frame is created during the frame allocation and the test lost its meaning. Under no circumstance this test is valid or checking something reasonable. So we should just remove this test.
The fundamental reason the test is invalid is that the current frame allocation code is immune from being interrupted by Python code that can somehow create the same frame object. So we also remove the dead code in frame allocation, and replace it with an assert and some comments.
There's no user observable behavior changes so I'll skip the news, unless someone disagrees.
test_framefails when running with-R 3:3argument #116098