Remove warnings on Elixir v1.19+

Author: josevalim

lib/plug/adapters/test/conn.ex

@@ -4,7 +4,7 @@ defmodule Plug.Adapters.Test.Conn do
 
   ## Test helpers
 
-  def conn(conn, method, uri, body_or_params) do
+  def conn(%Plug.Conn{} = conn, method, uri, body_or_params) do
     maybe_flush()
     uri = URI.parse(uri)
 
@@ -38,7 +38,7 @@ defmodule Plug.Adapters.Test.Conn do
 
     conn_port = if conn.port != 0, do: conn.port, else: 80
 
-    %Plug.Conn{
+    %{
       conn
       | adapter: {__MODULE__, state},
         host: uri.host || conn.host || "www.example.com",

lib/plug/method_override.ex

@@ -57,11 +57,11 @@ defmodule Plug.MethodOverride do
     conn
   end
 
-  defp override_method(conn, body_params) do
+  defp override_method(%Plug.Conn{} = conn, body_params) do
     with method when is_binary(method) <- body_params["_method"] || "",
          method = String.upcase(method, :ascii),
          true <- method in @allowed_methods do
-      %Plug.Conn{conn | method: method}
+      %{conn | method: method}
     else
       _ -> conn
     end