Great point Valentin. I do think it's worthwhile to allow capturing
variadic sub-patterns while destructuring.
For symmetry with variadic function arguments (*args) I would actually
suggest accumulating all the values using a tuple and bind that tuple to
the name, but I'm not precious about using a tuple vs a list. Bikesheddable
imo.
Something I forgot to mention in the original proposal is that unlike with
variadic function arguments where you can only have variadic positionals
once in the signature, in a pattern the following should be valid:
match heterogenous:
case [
*str() as strings,
3,
*bool()
]
Where 'heterogenous' should match an iterable starting with zero or more
strings and bind them to (subject to bikeshedding) a tuple with the name
'strings', followed by the integer 3, followed by zero or more booleans.
On Tue, Sep 13, 2022 at 3:17 PM Valentin Berlier <berlie...@gmail.com>
wrote:
> I really like this. One problem though is that it's not immediately
> obvious what happens with binding patterns and "as" clauses. In the code
> inside the case statement, should these identifiers refer to the last value
> matched, or should they accumulate all the matches in a list?
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