1 files changed, 38 insertions, 0 deletions
diff --git a/app/Exception.hs b/app/Exception.hs
new file mode 100644
index 0000000..83d624d
--- /dev/null
+++ b/app/Exception.hs
@@ -0,0 +1,38 @@
+module Exception
+  ( AnyException (..),
+    InvalidTreeGrepperResult (..),
+    ProcessException (..),
+    UnknownFileExtension (..),
+  )
+where
+
+import Control.Exception
+import Data.ByteString.Lazy.Char8 as LB
+import System.Exit (ExitCode)
+
+data AnyException
+  = InvalidTreeGrepperResult' InvalidTreeGrepperResult
+  | ProcessException' ProcessException
+  | UnknownFileExtension' UnknownFileExtension
+  deriving (Show)
+
+instance Exception AnyException
+
+data InvalidTreeGrepperResult = InvalidTreeGrepperResult
+  { error :: String
+  }
+  deriving (Show)
+
+instance Exception InvalidTreeGrepperResult
+
+data ProcessException = ProcessException String ExitCode LB.ByteString
+  deriving (Show)
+
+instance Exception ProcessException
+
+data UnknownFileExtension = UnknownFileExtension
+  { extension :: String
+  }
+  deriving (Show)
+
+instance Exception UnknownFileExtension