Message 295170 - Python tracker

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In-reply-to
Author	rhettinger
Recipients	rhettinger, scoder, serhiy.storchaka, skrah, vstinner
Date	2017年06月05日.06:57:32
SpamBayes Score	-1.0
Marked as misclassified	Yes
Message-id	<1496645853.31.0.645666119787.issue29464@psf.upfronthosting.co.za>

Content
> Proposed patch renames METH_FASTCALL to METH_FASTCALL\|METH_KEYWORDS > and makes bare METH_FASTCALL be used for functions with > positional-only parameters. This eliminates small cost that > these functions pay for handling empty keywords: calling > _PyStack_UnpackDict() and _PyArg_NoStackKeywords(), > passing kwnames. This also can slightly reduce stack > consumption. +1 for all the reasons listed. These are very reasonable specializations. The empty keyword checks are really irritating for fine-grained functions.

Content

> Proposed patch renames METH_FASTCALL to METH_FASTCALL|METH_KEYWORDS
> and makes bare METH_FASTCALL be used for functions with 
> positional-only parameters. This eliminates small cost that 
> these functions pay for handling empty keywords: calling 
> _PyStack_UnpackDict() and _PyArg_NoStackKeywords(), 
> passing kwnames. This also can slightly reduce stack 
> consumption.
+1 for all the reasons listed. These are very reasonable specializations. The empty keyword checks are really irritating for fine-grained functions.

History
Date	User	Action	Args
2017年06月05日 06:57:33	rhettinger	set	recipients: + rhettinger, scoder, vstinner, skrah, serhiy.storchaka
2017年06月05日 06:57:33	rhettinger	set	messageid: <1496645853.31.0.645666119787.issue29464@psf.upfronthosting.co.za>
2017年06月05日 06:57:33	rhettinger	link	issue29464 messages
2017年06月05日 06:57:32	rhettinger	create

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