Named deconstruction

[AlexRadch]

Deconstruction uses positions syntax only and has syntax for skipping certain positions.
I suggest to add a named deconstruction syntax.

Named deconstruction enable you to specify correct property for a variable by associating the variable name with the property's name rather than with the property's position in deconstruction.
Also it allow to skip some properties in deconstruction.

            var points = new (int x, int y, int z)[] { (0, 0, 0), (1, 1, 1) };
            foreach ((var px: x, var py: y) in points) { }
            foreach ((var py: y, var pz: z) in points) { }
            foreach ((var pz: z, var py: y, var px: x) in points) { }

[hez2010]

Actually you can write it already:

foreach (var (px, py, pz) in points) {   }

[AlexRadch]

@hez2010 but you can not write foreach (var (pz: z, py: y, px: x) in points) { }. Also you should remember each position. Also code will become wrong if properties order is changed.
It is like https://docs.microsoft.com/en-us/dotnet/csharp/programming-guide/classes-and-structs/named-and-optional-arguments

[Austin-bryan]

I always love when the existing syntax is shorter than purposed syntax. And you should really try a better example, because if someone is order x, y, and z, in, frankly, literally anyother order, then you have a different problem altogether.