From 3d9dae8294e267052f549d2d6310246b4ab3ae64 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ren=C3=A9=20F=C3=B6hring?= <rf@bamaru.de>
Date: Sun, 20 Oct 2024 13:30:07 +0200
Subject: [PATCH] Do not count pin operator for ABC size

Refs #1155
---
 lib/credo/check/refactor/abc_size.ex        |  2 +-
 test/credo/check/refactor/abc_size_test.exs | 14 ++++++++++++++
 2 files changed, 15 insertions(+), 1 deletion(-)

diff --git a/lib/credo/check/refactor/abc_size.ex b/lib/credo/check/refactor/abc_size.ex
index ceafbdf1e..7c8a49fc2 100644
--- a/lib/credo/check/refactor/abc_size.ex
+++ b/lib/credo/check/refactor/abc_size.ex
@@ -27,7 +27,7 @@ defmodule Credo.Check.Refactor.ABCSize do
   @def_ops [:def, :defp, :defmacro]
   @branch_ops [:.]
   @condition_ops [:if, :unless, :for, :try, :case, :cond, :and, :or, :&&, :||]
-  @non_calls [:==, :fn, :__aliases__, :__block__, :if, :or, :|>, :%{}]
+  @non_calls [:==, :fn, :__aliases__, :__block__, :if, :or, :|>, :%{}, :^]
 
   @doc false
   @impl true
diff --git a/test/credo/check/refactor/abc_size_test.exs b/test/credo/check/refactor/abc_size_test.exs
index f5cf46f81..75112fbc3 100644
--- a/test/credo/check/refactor/abc_size_test.exs
+++ b/test/credo/check/refactor/abc_size_test.exs
@@ -336,6 +336,20 @@ defmodule Credo.Check.Refactor.ABCSizeTest do
     assert rounded_abc_size(source) == 3
   end
 
+  test "it should NOT count pin operators (^) for abc size" do
+    source = """
+      def test(param, foo) do
+        case param do
+          ^foo -> foo.bar
+          "bar" -> bar.baz
+          "baz" -> bux.bus
+        end
+      end
+    """
+
+    assert rounded_abc_size(source) == 6
+  end
+
   test "it should NOT count functions given to ignore for abc size" do
     source = """
     def fun() do