[mypyc] Use METH_FASTCALL with "__call__" #9946
Merged
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Allocate a vectorcall function pointer as a struct field for native
classes that include
__call__
, including nested functions. Thislets us use METH_FASTCALL wrapper functions with
__call__
methods.
See https://www.python.org/dev/peps/pep-0590/ for details of why
we jump through these hoops.
This makes the
nested_func
microbenchmark about 1.5x faster.Follow-up to #9894.