Hmm, I could use `let`, but I actually would like ...

# getting-started

[holgerbrandl]

Hmm, I could use let, but I actually would like to use a non-extension function on my argument:

(listOf(1,2)).let { (x, y) -> x+y} //works
somefun(listOf(1,2)) { (x, y) -> x+y}  //want that

[diesieben07]

I don't think it exists in the standard library, but you can easily write it yourself:

inline fun <T, R> destructure(value: T, body: (T) -> R): R = body(value)

[holgerbrandl]

Thanks!

[holgerbrandl]

Is there a YT ticket for it?

[diesieben07]

I don't know, sorry.

[karelpeeters]

Last time this came up "is there a variant of run that calls a lambda with a given parameter?" the solution was to just call it yourself with { ... } (...), but this doesn't work: {(a, b) -> a+b}(listOf(1,2))

[karelpeeters]

You'd need to specify the types explicitly.

[diesieben07]

Yeah, no "forward type inference" (yet?) 😞

[karelpeeters]

I'm hoping this get's implemented some time, I needed it for some delegates too.