Initial

1 files changed, 19 insertions, 0 deletions

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