bpo-32379: Faster MRO computation for single inheritance#4932
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pitrou merged 5 commits intopython:masterfrom Dec 20, 2017
Merged
bpo-32379: Faster MRO computation for single inheritance#4932pitrou merged 5 commits intopython:masterfrom
pitrou merged 5 commits intopython:masterfrom
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| return 1; | ||
| } | ||
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| return NULL; | ||
| } | ||
| k = PyTuple_GET_SIZE(base->tp_mro); | ||
| result = PyTuple_New(k + 1); |
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Shouldn't the result be a tuple?
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You mean a list? The caller calls PySequence_Tuple on the result, so it's faster if we create a tuple upfront.
serhiy-storchaka
approved these changes
Dec 20, 2017
Objects/typeobject.c
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| return mro_implementation(self); | ||
| PyObject *seq; | ||
| seq = mro_implementation(self); | ||
| if (seq != NULL && PyTuple_CheckExact(seq)) { |
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I would write !PyList_Check().
Objects/typeobject.c
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| PyObject *seq; | ||
| seq = mro_implementation(self); | ||
| if (seq != NULL && PyTuple_CheckExact(seq)) { | ||
| PyObject *lst = PySequence_List(seq); |
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This may look clearer with
Py_SETREF(seq, PySequence_List(seq));and a single return.
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I have to get used to it :-)
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Thanks for the review @serhiy-storchaka ! |
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https://bugs.python.org/issue32379