If I've got a `data class X(val foo: Int, val bar:...

# getting-started

[Klitos Kyriacou]

If I've got a data class X(val foo: Int, val bar: Int) and use it all over the place in a large codebase, is there a refactoring (either in IDEA Ultimate Edition or in a third-party plugin or CLI utility) that will swap the two parameters to make it data class X(val bar: Int, val foo: Int)?

[Joffrey]

Ctrl+F6 (change signature) - at least on windows. Probably macOS has CMD+F6 but not sure, I never how to map them

[Jonas B]

You can right click the function name Refactor -> Change Signature to reach it

[Klitos Kyriacou]

Thanks, I'll try that, but will it also change val (a, b) = getSomeX() to val (b, a) = getSomeX()?

[Jonas B]

If that's a Pair then I don't think it'll work because its not your own code/signature

[Klitos Kyriacou]

No, that's destructuring the data class X.

[Jonas B]

It seems you can right click your constructor and do the Change signature there so I guess that would work?

[Jonas B]

If I understand what you want to do then it works for me. However I needed to right click the class name not the constructor part.

[Jonas B]

data class A(val a: String, val b: String)
fun a() {
    val (a, b) = A("a", "b")
}

turns into

data class A(val b: String, val a: String)

fun a() {
    val (b, a) = A("b", "a")
}

by just running Change signature and changing the order

[Klitos Kyriacou]

That works perfectly, thanks!