Feature Request: 'Safe Invocation' operator [Discussion] [Proposal]

[tangelov]

Hi guys,

I propose an extension to the 'Safe Navigation' ? operator. If the nested expression does not have a value the parent expression would evaluate to null without calling the method e.g:

Given we have a method signature int DoStuffAndGetValue(int arg)

The new syntax would be used like so var a = DoStuffAndGetValue(parent?.child.child?)

Such an operator would avoid the need of assigning a variable with parent?.child.child? or repeating the code with a ternary operator. It looks like a natural extension of the 'Safe Navigation' operator to me.

Regards,
Teodor

[HaloFour]

Here's a relevant discussion on this subject that happened on the Roslyn repo:

dotnet/roslyn#5961

[jnm2]

Duplicate of #842, very close to #433.

[YairHalberstadt]

Closing as duplicate of #843 and #433