Not necessarily. My point is that a unique name is generated for each anonymous function and the process is opaque. Renaming a private function to give it a clearer name, changing lines, etc could all affect the name of the anonymous function. You have no control over it and you should assume that any change will give you something new.
Here is an example:
iex(18)> defmodule Foo do
...(18)> def fun, do: fn a, b -> a + b end
...(18)> end
iex(19)> fun = Foo.fun()
#Function<0.51000596/2 in Foo.fun/0>
iex(20)> defmodule Foo do
...(20)> def fun, do: fn a,
...(20)> b -> a +
...(20)> b
...(20)> end
...(20)> end
warning: redefining module Foo (current version defined in memory)
iex:20
iex(21)> Foo.fun() == fun
false
Same code, different line breaks, different functions.
