[srean]

That does not address the use case where I find tail recursion most tempting. That would be mutually recursive functions.

If the function can be written as an idiomatic loop I probably would do so in the first place.

[apgwoz]

You _can_ do trampolines, but that is kind of infectious, or needs to be very explicit with extra code, etc.

[srean]

Indeed. It's not very efficient though. If I remember correctly Scala does this.