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gh-134891: Add PyUnstable_Unicode_GET_CACHED_HASH (GH-134892)

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Petr Viktorin 2025-06-06 15:51:00 +02:00 • committed by GitHub
parent 343182853f
commit e413e26719
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7 changed files with 55 additions and 5 deletions
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11
Include/cpython/unicodeobject.h
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@ -300,6 +300,17 @@ static inline Py_ssize_t PyUnicode_GET_LENGTH(PyObject *op) {
}
#define PyUnicode_GET_LENGTH(op) PyUnicode_GET_LENGTH(_PyObject_CAST(op))
/* Returns the cached hash, or -1 if not cached yet. */
static inline Py_hash_t
PyUnstable_Unicode_GET_CACHED_HASH(PyObject *op) {
assert(PyUnicode_Check(op));
#ifdef Py_GIL_DISABLED
return _Py_atomic_load_ssize_relaxed(&_PyASCIIObject_CAST(op)->hash);
#else
return _PyASCIIObject_CAST(op)->hash;
#endif
}
/* Write into the canonical representation, this function does not do any sanity
checks and is intended for usage in loops. The caller should cache the
kind and data pointers obtained from other function calls.