Switch expression as evolution of ternary operator

[miqm]

Is your feature request related to a problem? Please describe.
Building complex cases when you need to check multiple conditions and decide which value to use can be very difficult (but not impossible) with ternary operator.
Lack of new line support makes it double complicated, as you cannot break lines in to make it more readable

Describe the solution you'd like
I'd like to be able to use a switch expression similar to C# 8.0 (https://docs.microsoft.com/en-us/archive/msdn-magazine/2019/may/csharp-8-0-pattern-matching-in-csharp-8-0#the-evolution-of-pattern-matching-in-c-80)

var value = switch {
cond1 && cond2 => v1
cond1 && !cond2 => v2
cond3 => v3 //this would be evaluated only if previous steps fail to match
_ => default
}

[slavizh]

somehow duplicate to #448

[miqm]

@slavizh Indeed, I saw that issue and thought it was for introducing a switch on resources rather than on variables or values.

[alex-frankel]

Going to close this as a dup of #448 for now

[zhoulf1006]

Is there any plan of introducing this ability?