On 2018-04-02 12:39, INADA Naoki wrote:
Thanks for writing such hard PEP.
At first glance, it new type hierarchy seems OK.
But I can't understand rational for new flags.
Which flags in particular do you mean? I just pushed an update
explaining the rationale of METH_ARG0_FUNCTION:
https://github.com/jdemeyer/PEP-functions#replacing-tp_call-meth_arg0_function
And it's very difficult to estimate runtime and maintenance cost of
the PEP, without draft implementation.
Runtime cost: the goal is no slowdowns at all.
Maintenance cost: IMHO, this PEP simplifies functions in CPython by
removing special classes like method_descriptor so the effect should
only be in the good sense.
FASTCALL is introduced in recently version, and it make implementation
complicated.
I'm afraid that this PEP make it worse.
What do you mean? I am not making any changes to METH_FASTCALL.
I only mention it in my PEP to document it.
Jeroen.
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