From a7ff09276cbfe1d50d0faf81cfa135bff7ef0150 Mon Sep 17 00:00:00 2001
From: "github-actions[bot]"
 <41898282+github-actions[bot]@users.noreply.github.com>
Date: Tue, 14 May 2024 13:57:44 +0000
Subject: [PATCH] Fix RecursionError in `infer_call_result()` (#2432) (#2436)

(cherry picked from commit d1c37a90359e6a8e40b9772258d0049394f8294a)

Co-authored-by: Jacob Walls <jacobtylerwalls@gmail.com>
---
 ChangeLog               |  3 +++
 astroid/bases.py        |  5 +++++
 tests/test_inference.py | 12 ++++++++++++
 3 files changed, 20 insertions(+)

diff --git a/ChangeLog b/ChangeLog
index 6212a95e40..17e69ccb6f 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -13,6 +13,9 @@ What's New in astroid 3.2.1?
 ============================
 Release date: TBA
 
+* Fix ``RecursionError`` in ``infer_call_result()`` for certain ``__call__`` methods.
+
+  Closes pylint-dev/pylint#9139
 
 
 What's New in astroid 3.2.0?
diff --git a/astroid/bases.py b/astroid/bases.py
index 4b866a6aed..4a684cf1fe 100644
--- a/astroid/bases.py
+++ b/astroid/bases.py
@@ -326,6 +326,11 @@ def infer_call_result(
         for node in self._proxied.igetattr("__call__", context):
             if isinstance(node, UninferableBase) or not node.callable():
                 continue
+            if isinstance(node, BaseInstance) and node._proxied is self._proxied:
+                inferred = True
+                yield node
+                # Prevent recursion.
+                continue
             for res in node.infer_call_result(caller, context):
                 inferred = True
                 yield res
diff --git a/tests/test_inference.py b/tests/test_inference.py
index 10fceb7b56..ec8fc71b69 100644
--- a/tests/test_inference.py
+++ b/tests/test_inference.py
@@ -4090,6 +4090,18 @@ class C:
             inferred = next(node.infer())
             self.assertRaises(InferenceError, next, inferred.infer_call_result(node))
 
+    def test_infer_call_result_same_proxied_class(self) -> None:
+        node = extract_node(
+            """
+        class A:
+            __call__ = A()
+        A() #@
+        """
+        )
+        inferred = next(node.infer())
+        fully_evaluated_inference_results = list(inferred.infer_call_result(node))
+        assert fully_evaluated_inference_results[0].name == "A"
+
     def test_infer_call_result_with_metaclass(self) -> None:
         node = extract_node("def with_metaclass(meta, *bases): return 42")
         inferred = next(node.infer_call_result(caller=node))