From 14a7c6013dff4da4dd93e1a02559af3dd46f464a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Alexandru=20Bogdan=20B=C3=A2gu?=
 <contact@alexandrubagu.info>
Date: Wed, 21 Dec 2016 21:03:46 +0200
Subject: [PATCH] update behaviours to reflect changes made in elixir 1.4
 (#231)

---
 lib/guardian/claim_validation.ex |  4 +---
 lib/guardian/hooks.ex            | 25 ++++++++++++-------------
 lib/guardian/serializer.ex       |  5 ++---
 3 files changed, 15 insertions(+), 19 deletions(-)

diff --git a/lib/guardian/claim_validation.ex b/lib/guardian/claim_validation.ex
index 25feead64..90bd783f9 100644
--- a/lib/guardian/claim_validation.ex
+++ b/lib/guardian/claim_validation.ex
@@ -9,9 +9,7 @@ defmodule Guardian.ClaimValidation do
 
       use Guardian.ClaimValidation
   """
-  use Behaviour
-
-  defcallback validate_claim(String.t, map, map) :: :ok |
+  @callback validate_claim(String.t, map, map) :: :ok |
                                                         {:error, atom}
 
   defmacro __using__(_options \\ []) do
diff --git a/lib/guardian/hooks.ex b/lib/guardian/hooks.ex
index 808010eec..4d5548c03 100644
--- a/lib/guardian/hooks.ex
+++ b/lib/guardian/hooks.ex
@@ -2,7 +2,6 @@ defmodule Guardian.Hooks do
   @moduledoc """
   This module helps to hook into the lifecycle of authentication.
   """
-  use Behaviour
 
   defmacro __using__(_) do
     quote do
@@ -28,38 +27,38 @@ defmodule Guardian.Hooks do
     end
   end
 
-  defcallback before_encode_and_sign(
+  @callback before_encode_and_sign(
     resource :: term,
     type :: atom,
     claims :: map()
-  )
+  ) :: {:ok, {term, atom, map}}
 
-  defcallback after_encode_and_sign(
+  @callback after_encode_and_sign(
     resource :: term,
     type :: atom,
     claims :: map(),
     token :: String.t
-  )
+  ) :: Plug.Conn.t
 
-  defcallback after_sign_in(
+  @callback after_sign_in(
     conn :: Plug.Conn.t,
     location :: atom | nil
-  )
+  ) :: Plug.Conn.t
 
-  defcallback before_sign_out(
+  @callback before_sign_out(
     conn :: Plug.Conn.t,
     location :: atom | nil
-  )
+  ) :: Plug.Conn.t
 
-  defcallback on_verify(
+  @callback on_verify(
     claims :: map(),
     jwt :: String.t
-  )
+  ) :: {:ok, {map(), String.t}}
 
-  defcallback on_revoke(
+  @callback on_revoke(
     claims :: map(),
     jwt :: String.t
-  )
+  ) :: {:ok, {map(), String.t}}
 end
 
 defmodule Guardian.Hooks.Default do
diff --git a/lib/guardian/serializer.ex b/lib/guardian/serializer.ex
index ba7c148ed..cf2f9a9ce 100644
--- a/lib/guardian/serializer.ex
+++ b/lib/guardian/serializer.ex
@@ -6,17 +6,16 @@ defmodule Guardian.Serializer do
   the resource from the encoded value in the JWT and also encoding a resource
   into a String so that it may be stored in the JWT
   """
-  use Behaviour
 
   @doc """
   Serializes the object into the token. Suggestion: \"User:2\"
   """
-  defcallback for_token(object :: term) :: {:ok, String.t} |
+  @callback for_token(object :: term) :: {:ok, String.t} |
                                            {:error, String.t}
 
   @doc """
   De-serializes the object from a token
   """
-  defcallback from_token(subject :: String.t) :: {:ok, object :: term} |
+  @callback from_token(subject :: String.t) :: {:ok, object :: term} |
                                                  {:error, String.t}
 end