Remove ununsed GF.Source.SharedString module.

1 files changed, 0 insertions, 20 deletions

diff --git a/src/GF/Source/SharedString.hs b/src/GF/Source/SharedString.hs
deleted file mode 100644
index 358f70494..000000000
--- a/src/GF/Source/SharedString.hs
+++ /dev/null
@@ -1,20 +0,0 @@
-module GF.Source.SharedString (shareString) where
-
-import Data.Map as M
-import Data.IORef
-import qualified Data.ByteString.Char8 as BS
-import System.IO.Unsafe (unsafePerformIO)
-
-{-# NOINLINE stringPoolRef #-}
-stringPoolRef :: IORef (M.Map BS.ByteString BS.ByteString)
-stringPoolRef = unsafePerformIO $ newIORef M.empty
-
-{-# NOINLINE shareString #-}
-shareString :: BS.ByteString -> BS.ByteString
-shareString s = unsafePerformIO $ do
-  stringPool <- readIORef stringPoolRef
-  case M.lookup s stringPool of
-    Just s' -> return s'
-    Nothing -> do let s' = BS.copy s
-                  writeIORef stringPoolRef $! M.insert s' s' stringPool
-                  return s'