Re: [Python-Dev] PEP 590: vectorcall without tp_call

2019年5月31日 15:04:52 -0700

On 29May2019 1311, Petr Viktorin wrote:
On 5/29/19 3:36 PM, Jeroen Demeyer wrote:
On 2019年05月29日 15:29, Petr Viktorin wrote:
That sounds like a good idea for PyType_FromSpec.
I don't think we're planning to support vectorcall in PyType_FromSpec for now. That's maybe for 3.9 when vectorcall is no longer provisional.
For static types I either wouldn't bother at all, or only check in debug
builds and fail with Py_FatalError.
So basically an assert(...)?
Yes. That's the usual way to let C extension authors know they did something wrong.
It's the usual way to let core developers know they did something wrong :)
I don't want to reignite the whole debug/release extension build debate again, but I'll point out that it's very common to develop extension modules against the release binaries on Windows, which means you won't see asserts coming from core (because they've been optimised out). So if this is something we're going to detect at runtime regardless of build, using Py_FatalError/abort or raising a SystemError is preferable. Otherwise we'll be forcing users to debug a segfault.
Cheers,
Steve
_______________________________________________
Python-Dev mailing list
[email protected]
https://mail.python.org/mailman/listinfo/python-dev
Unsubscribe: 
https://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com

Reply via email to