use Bamboo.Mailer causes dialyzer error

[mjquinlan2000]

I'm getting dialyzer errors when using Bamboo.Mailer on Bamboo 2.0

Example:

defmodule Tmp.Mailer do
  use Bamboo.Mailer, otp_app: :tmp
end

Produces

lib/mailer.ex:2:invalid_contract
The @spec for the function does not match the success typing of the function.

Function:
Tmp.Mailer.deliver_later/1

Success typing:
@spec deliver_later(_) ::
  {:error,
   <<_::64, _::size(8)>>
   | %{
       :__exception__ => true,
       :__struct__ => Bamboo.EmptyFromAddressError | Bamboo.NilRecipientsError,
       :message => <<_::64, _::size(8)>>
     }}
  | {:ok,
     %{
       :bcc => {binary(), binary()},
       :cc => {binary(), binary()},
       :from => {binary(), binary()},
       :to => {binary(), binary()},
       _ => _
     }}

________________________________________________________________________________
done (warnings were emitted)
Halting VM with exit status 2

[germsvel]

Hi @mjquinlan2000 thanks for opening this issue. I think this has already been resolved in #584. I haven't cut a release for that fix yet, but I will as soon as I can.

[mjquinlan2000]

Thanks for the quick response @germsvel I missed that when I was searching the open issues.

Feel free to close this unless you want to keep it open until the release comes out.

FYI you can circumvent this issue by putting

@dialyzer {:nowarn_function, deliver_later: 1}

In the mailer module.

[germsvel]

Thanks @mjquinlan2000. 👍