Is it possible to define collection type when using from_list?

[soullpoint]

Hi there, apologies if I missed this in the documentation, but is it possible to define the collection type when creating a path via from_list?

e.g. I want to create something similar to path :alpha / (0 :: :list), but dynamically.

I attempted to do something like from_list([:alpha, 0 :: :list]), however, I got an error saying that :: was not a defined function.

The use case for this is that I want to use the above path to force_set and create if it doesn't exist, but I want it to create a list rather than a map. From testing it seems that defining the collection type correctly results in a list being created for the 0 path.

Any assistance would be much appreciated!

Thanks!

[hissssst]

You can't do this with from_list, but you can achieve this behavior using other functions. Consider something like this

def my_from_list([head | tail]) do
  Enum.reduce(tail, to_path(head), fn item, acc ->
    acc ~> to_path(item)
  end)
end
def my_from_list([]), do: matching(_)

defp to_path(int) when is_integer(int) do
  path(int :: :list)
end
def to_path(other), do: path(other)

[soullpoint]

Oh I see, that is very nice! I am relatively new to Elixir so I am struggling a bit with these new patterns.

Appreciate the assistance and prompt response! Have a great day :)