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GH-101291: Rearrange the size bits in PyLongObject (GH-102464)

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* Eliminate all remaining uses of Py_SIZE and Py_SET_SIZE on PyLongObject, adding asserts.

* Change layout of size/sign bits in longobject to support future addition of immortal ints and tagged medium ints.

* Add functions to hide some internals of long object, and for setting sign and digit count.

* Replace uses of IS_MEDIUM_VALUE macro with _PyLong_IsCompact().
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Mark Shannon 2023-03-22 14:49:51 +00:00 • committed by GitHub
parent 713df2c534
commit 7559f5fda9
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25 changed files with 982 additions and 898 deletions
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3
Include/internal/pycore_object.h
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@ -137,8 +137,9 @@ static inline void
_PyObject_InitVar(PyVarObject *op, PyTypeObject *typeobj, Py_ssize_t size)
{
assert(op != NULL);
Py_SET_SIZE(op, size);
assert(typeobj != &PyLong_Type);
_PyObject_Init((PyObject *)op, typeobj);
Py_SET_SIZE(op, size);
}