If I have a composable function `Foo` that returns a `Bar` and it gets called from `Baz`, if `Foo` n...

# compose

[eygraber]

If I have a composable function Foo that returns a Bar and it gets called from Baz, if Foo needs to recompose does Baz recompose?

[Stylianos Gakis]

Sounds like a yes. But you could probably throw some code here to make more clear what you are describing.

[eygraber]

Yeah, quickly threw it out there because I was about to go to sleep 😅

I'm thinking something like

@Composable
fun Foo(): Bar{
  return vm.barFlow().collectAsState().value
}

@Composable
fun Baz() {
  val bar = Foo()
  // do something with bar
}

[Stylianos Gakis]

Yes, Baz will receive the new value from Foo(), and it will recompose.

With that said, composable functions that return something should be lower-case to indicate that. So since your Foo returns a value, i should be called foo.

Also it may be a good idea to return State<Bar> instead of doing the value read in the function itself, so that on the call site you can read it as a state and only use it later at the point that it is needed instead of the entire recomposition scope of Baz, but that’s a minute detail tbh.