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pythongh-87613: Add vectorcall to bytes.__new__ via Argument Clinic
Use the new @vectorcall decorator to generate a vectorcall constructor for bytes, enabling the fast calling path without tuple/dict packing. Co-Authored-By: Claude Opus 4.6 <[email protected]>
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‎Objects/bytesobject.c‎

Lines changed: 3 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -2859,6 +2859,7 @@ static PyObject *
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bytes_subtype_new(PyTypeObject *, PyObject *);
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/*[clinic input]
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@vectorcall
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@classmethod
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bytes.__new__ as bytes_new
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@@ -2871,7 +2872,7 @@ bytes.__new__ as bytes_new
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static PyObject *
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bytes_new_impl(PyTypeObject *type, PyObject *x, const char *encoding,
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const char *errors)
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/*[clinic end generated code: output=1e0c471be311a425 input=f0a966d19b7262b4]*/
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/*[clinic end generated code: output=1e0c471be311a425 input=b0248d22e221a095]*/
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{
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PyObject *bytes;
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PyObject *func;
@@ -3248,6 +3249,7 @@ PyTypeObject PyBytes_Type = {
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bytes_alloc, /* tp_alloc */
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bytes_new, /* tp_new */
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PyObject_Free, /* tp_free */
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.tp_vectorcall = bytes_vectorcall,
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.tp_version_tag = _Py_TYPE_VERSION_BYTES,
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};
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‎Objects/clinic/bytesobject.c.h‎

Lines changed: 139 additions & 1 deletion
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