Consider the following code:
iex> fn1 = fn x -> x end
#Function<42.3316493/1 in :erl_eval.expr/6>
iex> fn2 = fn x -> x end
#Function<42.3316493/1 in :erl_eval.expr/6>
iex> fn1 == fn2
false
iex> m = %{fn1 => 123}
%{#Function<42.3316493/1 in :erl_eval.expr/6> => 123}
iex> m[fn2]
nil
Is there some way to determine whether 2 anonymous functions are equal? By equal we can mean having the same underlying AST or being equivalent in some way.
Another related question:
what is “42.3316493/1” and is it possible to get this number programmatically somehow?
