1️⃣

fun foo(bar: Bar) {
  if (!bar.canFoo) {
    <http://logger.info|logger.info>("No foo for this bar")
    return
  }
  // Make foo with bar
}

2️⃣

fun foo(bar: Bar) {
  if (!bar.canFoo) {
    return <http://logger.info|logger.info>("No foo for this bar")
  }
  // Make foo with bar
}

I know you really want to save a line, but it would be a line that doesn't make sense to me. The intention is unclear

another thing to consider is that if you find yourself writing

!bar.canFoo

a lot, consider adding (or extending) a complementary

bar.cannotFoo

or whatever the appropriate name would be

actually this

canFoo

was completely contrived, the question is purely about the

return

I have yet to find an example that makes sense, but yes: if it makes sense then please propagate the Unit. I don't think it makes sense here. It might be arguable if you also return a log in the "else" part