# fn.getStackTrace() returns a text-based stack trace
fp.printStackTrace = () -> fn.println(fn.getStackTrace())

# Example
fp.f1 = () -> {
	fn.println(F1:)
	fp.printStackTrace()
}
fp.f2 = () -> {
	fn.println(F2:)
	fp.printStackTrace()
	fp.f1()
}
fp.f2()

fn.combA0(fp.f2)

# Partially called combinator functions' names are represented as "<comb...-func(...)>"
fn.combA(fn.combC(fn.combAE(), x), fp.f2)