On Fri, May 28, 2021 at 10:26 PM Ethan Furman <et...@stoneleaf.us> wrote:

> On 5/28/21 12:43 AM, Petr Viktorin wrote:
>  > On 28. 05. 21 5:24, Ethan Furman wrote:
>
>  >>      class FlagWithMasks(IntFlag):
>  >>          DEFAULT = 0x0
>  >>
>  >>          FIRST_MASK = 0xF
>  >>          FIRST_ROUND = 0x0
>  >>          FIRST_CEIL = 0x1
>  >>          FIRST_TRUNC = 0x2
>  >>
>  >>          SECOND_MASK = 0xF0
>  >>          SECOND_RECALC = 0x00
>  >>          SECOND_NO_RECALC = 0x10
>  >>
>  >>          THIRD_MASK = 0xF00
>  >>          THIRD_DISCARD = 0x000
>  >>          THIRD_KEEP = 0x100
>  >>
>  >> Here we have three flags (FIRST_MASK, SECOND_MASK, THIRD_MASK) that
> are aliasing values
>  >> that don't exist, but it seems intentional and not an error.
>  >
>  > Are you looking for a decorator for the whole Enum, or a way to mark
> individual *values* as masks?
>
> The decorator is for whole enum.  The issue is not that some values are
> masks, but whether the absence of named bits
> covered by the mask is an error.
>
> If all masked bits must be defined by individual values then it's a
completely_masked  enum? This is quite a bikeshed we're painting here! ;-)

Kind regards,
Steve


> Message archived at
> https://mail.python.org/archives/list/python-dev@python.org/message/OM5M774MP5QPLFXZ7OVGBPR7ZFB6X35A/
>
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