Hi! I am having logic similar to posted below. Is ...

# announcements

[Pawel]

Hi! I am having logic similar to posted below. Is there any way to do it better?

var a: Int? = null
try {
    a = doSthToGetA()
    useA(a)
} catch(ex: AnyExc) {
    doSthWithA(a)
}

[SackCastellon]

What can throw the exception, doSthToGetA(), useA(a) or both?
And does doSthWithA(a) expect a nullable type?
Do you care about the exception thrown or you just want to know whether an exception was thrown or not?

[Pawel]

Good questions, both can throw, and I don't care if a is null in catch block

[SackCastellon]

I don't think there is a better way to write that code.
At first I thought about using runCatching but it doesn't make thinks better.

var a: Int? = null
runCatching { a = doSthToGetA().also(::useA) }.onFailure { doSthWithA(a) }

This could be an alternative, however in this case a is only assigned if doSthToGetA and useA don't throw an exception.