[FEATURE REQUEST] Tuple or assignment destructuring

Development Programming & Scripting Verse
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1

Occasionally I run into a situation where I want to pass a tuple around to group some data. However the language currently does not support to destructure a statically known tuple of fixed length.

It would be great if the language gained such capability.

# before
X := SomeTuple(0)
Y := SomeTuple(1)

# after
(X, Y) := SomeTuple # `tuple` is of type `tuple(T1, T2)`

Having it for tuples is great, but we could go even further in the future. We could permit other assignment destructuring for other structures such as arrays, structs etc.

foo := struct {
 A: int
 B: int
 C<private>: int = 42
}

# Does not extract `C` as it's not visible from this scope.
(A, B) := foo { A := 1, B := 2 }

[First, Second] := [1, 2]
[First, Second, ...Rest] := [10, 20, 30, 40, 50]
2

This is the accepted plan (with slightly different syntax) - though no ETA yet.

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