Having followed this discussion for a while, I'm trying to put my finger on
why I feal uneasy about it.
The major features I see in this proposal are:
* New syntax for trying multiple assignments until one matches.
* Extending destructuring assignment to match constants in the LHS.
* Adding syntax to tell constants from targets.
* Extending destructuring assignment to match isinstance and properties.
* Making _ a special variable that doesn't always gets assigned a value.
I see the other features are only discussed as part of the first one.
I think each feature has (some) value on its own, could be implemented
without the others, so really should stand or fall on it's own merit.
And there I found the root of my uneasiness - the supporting cast is stronger
than the main actor. To me, that suggest we should change focus, to look at
the usefulness of these extensions in themselves, relegating the match/case
statement to syntactic sugar.
/Paul
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