fix: handling __MODULE__ while expanding aliases

Author: gp-pereira

lib/refactorex/refactor/alias.ex

@@ -60,6 +60,9 @@ defmodule Refactorex.Refactor.Alias do
       %{node: {{:., _, [{:__aliases__, _, aliases}, _]}, _, _}} ->
         expand_declaration(Z.up(zipper), aliases ++ path)
 
+      %{node: {{:., _, [{:__MODULE__, _, _}, :{}]}, _, _}} ->
+        [:__MODULE__ | path]
+
       %{node: {:alias, _, [{:__aliases__, _, aliases} | _]}} ->
         aliases ++ (path -- aliases)
 

test/refactor/alias/expand_aliases_test.exs

@@ -135,6 +135,29 @@ defmodule Refactorex.Refactor.Alias.ExpandAliasesTest do
     )
   end
 
+  test "expands __MODULE__ aliases" do
+    assert_refactored(
+      ExpandAliases,
+      """
+      defmodule Foo do
+      # v
+        alias __MODULE__.{
+          Alpha,
+          Delta.{Bar, Test}
+        }
+      # ^
+      end
+      """,
+      """
+      defmodule Foo do
+        alias __MODULE__.Alpha
+        alias __MODULE__.Delta.Bar
+        alias __MODULE__.Delta.Test
+      end
+      """
+    )
+  end
+
   test "ignores outside module" do
     assert_ignored(
       ExpandAliases,