Create sub module with atom name

Questions & Help Questions
5

Thank you for the time you explain this, but I need to convert atom inside sub_field macro, and user just put an atom

Code:

  defmodule TestNestedStruct do
    use GuardedStruct

    guardedstruct do
      field(:title, String.t())
      field(:subject, String.t())

      sub_field(:oop, String.t(), enforce: true) do
        field(:title, String.t())
        field(:fam, String.t())
      end

      field(:site, String.t())
    end
  end

And

Error

error: MishkaDeveloperToolsTest.GuardedStructTest.TestNestedStruct.Oop.__struct__/0 is undefined, cannot expand struct MishkaDeveloperToolsTest.GuardedStructTest.TestNestedStruct.Oop. Make sure the struct name is correct. If the struct name exists and is correct but it still cannot be found, you likely have cyclic module usage in your code
  test/guarded_struct_test.exs:534: MishkaDeveloperToolsTest.GuardedStructTest."test nested macro field"/1

I think it just accept a Tuple for creating submodule

  defmacro sub_field(name, type, opts \\ [], do: block) do
    ast = register_struct(block, opts)

    name =
      name
      |> Atom.to_string()
      |> Macro.camelize()
      |> String.to_atom()

    module_name = Module.concat(Elixir, name)

    quote do
      defmodule unquote(module_name) do
        unquote(ast)
      end
    end
  end

If I put sub_field(Oop, String.t(), enforce: true) do, it works :frowning:

I am improving my macro