From 182dd24fed2261ec73fac6f7ea5d3f156c82d540 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jos=C3=A9=20Valim?= <jose.valim@dashbit.co>
Date: Tue, 27 Feb 2024 12:30:06 +0100
Subject: [PATCH] Do not assume abstract code is available

---
 lib/ex_doc/language/elixir.ex | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/lib/ex_doc/language/elixir.ex b/lib/ex_doc/language/elixir.ex
index 62673391c..c32d42d35 100644
--- a/lib/ex_doc/language/elixir.ex
+++ b/lib/ex_doc/language/elixir.ex
@@ -453,7 +453,8 @@ defmodule ExDoc.Language.Elixir do
 
   def get_impls(module) do
     for behaviour <- behaviours_implemented_by(module),
-        {callback, _} <- Source.get_callbacks(Source.get_abstract_code(behaviour), ""),
+        abstract_code = Source.get_abstract_code(behaviour),
+        {callback, _} <- Source.get_callbacks(abstract_code, ""),
         do: {callback, behaviour},
         into: %{}
   end