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bpo-46006: Revert "bpo-40521: Per-interpreter interned strings (GH-20085)" (GH-30422)

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This reverts commit ea251806b8.

Keep "assert(interned == NULL);" in _PyUnicode_Fini(), but only for
the main interpreter.

Keep _PyUnicode_ClearInterned() changes avoiding the creation of a
temporary Python list object.
This commit is contained in:
Victor Stinner 2022-01-06 08:53:44 +01:00 • committed by GitHub
parent e5894ca8fd
commit 35d6540c90
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4 changed files with 75 additions and 30 deletions
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12
Include/internal/pycore_unicodeobject.h
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@ -48,21 +48,11 @@ struct _Py_unicode_state {
PyObject *latin1[256];
struct _Py_unicode_fs_codec fs_codec;
/* This dictionary holds all interned unicode strings. Note that references
to strings in this dictionary are *not* counted in the string's ob_refcnt.
When the interned string reaches a refcnt of 0 the string deallocation
function will delete the reference from this dictionary.
Another way to look at this is that to say that the actual reference
count of a string is: s->ob_refcnt + (s->state ? 2 : 0)
*/
PyObject *interned;
// Unicode identifiers (_Py_Identifier): see _PyUnicode_FromId()
struct _Py_unicode_ids ids;
};
extern void _PyUnicode_ClearInterned(PyInterpreterState *);
extern void _PyUnicode_ClearInterned(PyInterpreterState *interp);
#ifdef __cplusplus