C# Feature Request: Allow value tuple deconstruction with default keyword

[KnorxThieus]

Hi,
I apologize for neglecting the form, but I see not how to fill "expected behavior" etc. correctly.

In C# 7, we currently are able to use the default keyword in the following way:

int x = default;
meaning
int x = default(int);

We also can use tuple deconstruction like that:

(int x, bool y) = (42, true);
Or with the default keyword:
(int x, bool y) = default((int, bool))
But what seems to be impossible to me at the moment is this pattern of syntax:
(int x, bool y) = default;

In my eyes, the is some kind of logical gap that deserves to be filled soon. Okay, in this example, we could either write
var (x, y) = default((int, bool))

But assume x and y have been declared already before, then the use of var keyword is not possible.
That's why I would like to propose allowing this syntax.

While enjoying this language for a few years now, I am new to this forum, so I would be thankful to someone explaining me what's happening next with this proposal - if not already submitted by another user, but I couldn't find one. Thank your for your attention!

[svick]

I think this is currently behaving as designed, which means this is a request to change the language, not the compiler. And such requests belong to the csharplang repo. Can you move this issue there and close it here?

[KnorxThieus]

Oh yes, sorry I didn't know. Thank you!

Moved to csharplang repo