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gh-132983: Make zstd types immutable #133784

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Merged
merged 3 commits into from
May 10, 2025
Merged

gh-132983: Make zstd types immutable #133784

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9be36ca
Make zstd types immutable
AA-Turner May 9, 2025
563706a
Merge remote-tracking branch 'upstream/main' into zstd-immutable-types
AA-Turner May 10, 2025
a02c427
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AA-Turner May 10, 2025
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3 changes: 3 additions & 0 deletions Modules/_zstd/_zstdmodule.c
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Original file line number Diff line number Diff line change
Expand Up @@ -682,6 +682,9 @@ do { \
ADD_INT_CONST_TO_TYPE(mod_state->ZstdCompressor_type,
"FLUSH_FRAME", ZSTD_e_end);

/* Make ZstdCompressor immutable */
PyType_Freeze(mod_state->ZstdCompressor_type);

#undef ADD_TYPE
#undef ADD_INT_MACRO
#undef ADD_ZSTD_COMPRESSOR_INT_CONST
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3 changes: 2 additions & 1 deletion Modules/_zstd/decompressor.c
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Expand Up @@ -886,6 +886,7 @@ static PyType_Slot ZstdDecompressor_slots[] = {
PyType_Spec zstd_decompressor_type_spec = {
.name = "_zstd.ZstdDecompressor",
.basicsize = sizeof(ZstdDecompressor),
.flags = Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_GC,
.flags = Py_TPFLAGS_DEFAULT | Py_TPFLAGS_IMMUTABLETYPE
| Py_TPFLAGS_HAVE_GC,
.slots = ZstdDecompressor_slots,
};
3 changes: 2 additions & 1 deletion Modules/_zstd/zstddict.c
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Expand Up @@ -281,6 +281,7 @@ static PyType_Slot zstddict_slots[] = {
PyType_Spec zstd_dict_type_spec = {
.name = "_zstd.ZstdDict",
.basicsize = sizeof(ZstdDict),
.flags = Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_GC,
.flags = Py_TPFLAGS_DEFAULT | Py_TPFLAGS_IMMUTABLETYPE
| Py_TPFLAGS_HAVE_GC,
.slots = zstddict_slots,
};
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