Define the memoized function.

Below code:

defmemo foo(0, y) do
  y
end

defmemo foo(x, y) when x == 1 do
  y * z
end

defmemo foo(x, y, z \\ 0) when x == 2 do
  y * z
end

is converted to:

def foo(t1, t2) do
  Memoize.Cache.get_or_run({__MODULE__, :foo, [t1, t2]}, fn -> __foo_memoize(t1, t2) end)
end

def foo(t1, t2, t3) do
  Memoize.Cache.get_or_run({__MODULE__, :foo, [t1, t2, t3]}, fn -> __foo_memoize(t1, t2, t3) end)
end

def __foo_memoize(0, y) do
  y
end

def __foo_memoize(x, y) when x == 1 do
  y * z
end

def __foo_memoize(x, y, z \\ 0) when x == 2 do
  y * z
end

See Memoize.Cache.garbage_collect/0.