default value not checked if the typespec is missing

[meox]

I have a typedstruct defined in this way:

defmodule Msg do
    use TypedStruct

    typedstruct do
      field(:version, default: 1)
      field(:note, String.t(), default: "")
    end
end

If I default construct the record in this way: %Msg{} I got

%Msg{version: nil, note: ""}

instead of

%Msg{version: 1, note: ""}

Specifying the typespec everything works as expected.

[leggebroten]

Consider this plugin

• typed_struct_ctor – Adds validating (new and from) constructor functions.

  Try the macro out in real time without having to install or write any of your own code.
  All you need is a running instance of Livebook

  

[ejpcmac]

Hello @meox, this is indeed a bug: we should check that the second argument to field/2 is a type.