From 75ba6aeef88df2f051b73aa916fb66ce4c6b8a14 Mon Sep 17 00:00:00 2001
From: Tom Smeding <tom@tomsmeding.com>
Date: Wed, 1 Jul 2026 22:48:53 +0100
Subject: Initial

---
 test/Main.hs | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)
 create mode 100644 test/Main.hs

(limited to 'test/Main.hs')

diff --git a/test/Main.hs b/test/Main.hs
new file mode 100644
index 0000000..0f21a29
--- /dev/null
+++ b/test/Main.hs
@@ -0,0 +1,19 @@
+{-# LANGUAGE TemplateHaskell #-}
+module Main where
+
+import Data.IORef (IORef, atomicModifyIORef', newIORef)
+
+import InitOnce
+
+
+globalRef :: IORef Int
+globalRef = $$(once [|| newIORef 0 ||])
+
+{-# NOINLINE foo #-}
+foo :: IO String
+foo = atomicModifyIORef' globalRef (\i -> (i + 1, show i))
+
+main :: IO ()
+main = do
+  putStrLn =<< foo
+  putStrLn =<< foo
-- 
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