gh-123465: Allow Py_RELATIVE_OFFSET for __*offset__ members #123474
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Thank you, I confirm that this PR fixes the issue I encountered. |
neonene
reviewed
Oct 12, 2024
Comment on lines
+4740
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| if (strcmp(memb->name, "__weaklistoffset__") == 0) { | ||
| weaklistoffset_member = memb; | ||
| } | ||
| if (strcmp(memb->name, "__dictoffset__") == 0) { | ||
| dictoffset_member = memb; | ||
| } | ||
| if (strcmp(memb->name, "__vectorcalloffset__") == 0) { | ||
| vectorcalloffset_member = memb; | ||
| } |
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I would prefer to use if-else or continue. Non-debug builds on MSVC currently avoid a crash here by relying on a default SSA-optimization option (partial redundancy elimination) for some reason, which is usually disabled (/d2ssa-pre-) to diagnose or work around a crash unlike this.
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Adding else sounds like a great change! continue would work too.
You could reuse gh-123465 to keep the fix-up commit grouped with this one.
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Allow
flags = Py_READONLY | Py_RELATIVE_OFFSETfor the special offset members,which previously required
Py_READONLY.PyType_FromSpec():__vectorcalloffset__(and other special offset members) does not supportPy_RELATIVE_OFFSET#123465📚 Documentation preview 📚: https://cpython-previews--123474.org.readthedocs.build/