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gh-146442: Fix various bugs in compiler pipeline from bug report #146443

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Merged
vstinner merged 4 commits into from
Mar 30, 2026
Merged

gh-146442: Fix various bugs in compiler pipeline from bug report #146443

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089c19b
fix null derefs, missing decrefs, and unchecked returns from bug report
A0su Mar 26, 2026
aff400a
add disclaimer for leaks in codegen_deferred_annotations_body
A0su Mar 26, 2026
5b82b94
change to goto error in scope var cleanup and remove uncessary comments
A0su Mar 28, 2026
af3a0f9
trim trailing whitespace
A0su Mar 28, 2026
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add disclaimer for leaks in codegen_deferred_annotations_body
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@A0su
A0su committed Mar 26, 2026
commit aff400a0b6ffe5e95caf56e3839019674f6c0682
3 changes: 3 additions & 0 deletions Python/codegen.c
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Expand Up @@ -798,6 +798,9 @@ codegen_deferred_annotations_body(compiler *c, location loc,
if (!mangled) {
return ERROR;
}
// NOTE: ref of mangled can be leaked on ADDOP* and VISIT macros due to early returns
// fixing would require an overhaul of these macros

PyObject *cond_index = PyList_GET_ITEM(conditional_annotation_indices, i);
assert(PyLong_CheckExact(cond_index));
long idx = PyLong_AS_LONG(cond_index);
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