Is there something that's like a combo of

use

and

with

?

What do you mean exactly by “combo”

e.g.

db.getConnection().useWith {
  prepareStatement(...).useWith {
    setString(1, "Hello sailor")
    execute()
  }
}

T.run {}

has a signature of

(T.() -> R) -> R

, maybe that’s what you want?

He also want connection to be closed after

run

or

apply

oh, whoops, forgot about use closing automatically

Sorry, this is JDBC, should have mentioned.

Is it really that much more to stick with

use

and

it

? Or give the parameter a meaningful name to eliminate ambiguity in usage? Sometimes less concision leads to higher readability.

Sure, I've gone ahead and used

use

. I was just wondering if there was an even shorter way to do it.

I'd agree that sometimes there are too many ways to do something. There are docs that provide some conventions, mostly around let/apply/also/run/with that seem to be consistent, but definitely other areas where it's vague.

Docs in general are a bit skimpy, getting OkHttp and Moshi working was frustrating, partly because even when libraries are written in Kotlin it often seems to be the case that they're documented on the assumption that you're calling them from Java.

Do you have any example why do you need this? Why not just: e.g.

db.getConnection().use { connection ->
  connection.prepareStatement(...).use { statement ->
    statement.setString(1, "Hello sailor")
    statement.execute()
  }
}