[Python-Dev] Re: PEP 642: Constraint Pattern Syntax for Structural Pattern Matching

2020年11月18日 11:51:45 -0800

On Wed, Nov 18, 2020 at 1:25 AM Robin Becker <[email protected]> wrote:
> Is there a bestiary of examples for the current pattern matching
> proposal(s)?
>
> It seems I don't have a good handle on how one matches simple tests like
> callability,
Doable using protocols.
> function signatures,
I don't think that's directly doable, but there might be some way to bend
it to protocols.
> possession of
> specific attribute(s).....etc.
>
Protocols.
>
> Also will matching ever extend into the Typing universe?
>
In what way do you have in mind? With protocol support baked into PEP 634
that already ties into type hints.
-Brett
> --
> Robin Becker
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