Nim supports procedure overloading that allows the implementation of multiple
procs with the same name distinguished by the signature of their parameters.
However, it does not seem to be possible to do overloading with explicit
parameters such as [], "Araq" or 0 as in the following example:
proc fib(0): int = 1
proc fib(n: int): int = n*fib(n-1)
=> Error: redefinition of 'fib'; previous declaration here:
/usercode/in.nim(1, 6)
Run
Is there any reason why this isn't possible in Nim? Languages like Haskell or
Elixir go through all functions / procedures from top to bottom and choose the
first implementation that matches
defmodule Foo do
def fib(0), do: 1
def fib(n), do: n*fib(n-1)
end
IO.puts Foo.fib(6)
=> 720
Run
