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interpreter-core(Objects, Python, Grammar, and Parser dirs)(Objects, Python, Grammar, and Parser dirs)type-bugAn unexpected behavior, bug, or errorAn unexpected behavior, bug, or error
Description
Bug report
Bug description:
#29891 converted the generator objects to be variable in size so they could incorporate interpreter frames. However, the object layout is still defined using PyObject_HEAD
. Technically I think this is incorrect. In practice probably nobody notices because the generator type is not a base class and there are other ways to work out the variable sized part where needed, so ob_size
is never read after it is written as part of make_gen()
.
Long story short, I want to fix this because I would like to use ob_size
to find the size of generator objects as part of work on Meta's JIT.
CPython versions tested on:
CPython main branch
Operating systems tested on:
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interpreter-core(Objects, Python, Grammar, and Parser dirs)(Objects, Python, Grammar, and Parser dirs)type-bugAn unexpected behavior, bug, or errorAn unexpected behavior, bug, or error