Fixed breakage on GHC 6.10.1

[Lucu.git] / Network / HTTP / Lucu / Resource / Tree.hs

diff --git a/Network/HTTP/Lucu/Resource/Tree.hs b/Network/HTTP/Lucu/Resource/Tree.hs
index 51c30b6908ac67e02bf178d02640f25b6489ad81..40a4150dc9fe1694cee60f55703f257c10032a0c 100644 (file)
--- a/Network/HTTP/Lucu/Resource/Tree.hs
+++ b/Network/HTTP/Lucu/Resource/Tree.hs
@@ -1,4 +1,4 @@
--- #prune
+{-# OPTIONS_HADDOCK prune #-}
 
 -- | Repository of the resources in httpd.
 module Network.HTTP.Lucu.Resource.Tree
@@ -18,7 +18,6 @@ import           Control.Concurrent.STM
 import           Control.Exception
 import           Control.Monad
 import qualified Data.ByteString.Char8 as C8
-import           Data.Dynamic
 import           Data.List
 import qualified Data.Map as M
 import           Data.Map (Map)
@@ -166,6 +165,9 @@ findResource (ResTree (ResNode rootDefM subtree)) fbs uri
     where
       walkTree :: ResSubtree -> [String] -> [String] -> Maybe ([String], ResourceDef)
 
+      walkTree _ [] _
+          = error "Internal error: should not reach here."
+
       walkTree tree (name:[]) soFar
           = case M.lookup name tree of
               Nothing               -> Nothing
@@ -234,18 +236,14 @@ runResource def itr
                        Just _  -> xs
                        Nothing -> []
 
-      processException :: Exception -> IO ()
+      toAbortion :: SomeException -> Abortion
+      toAbortion e = case fromException e of
+                       Just abortion -> abortion
+                       Nothing       -> Abortion InternalServerError emptyHeaders (Just (show e))
+
+      processException :: SomeException -> IO ()
       processException exc
-          = do let abo = case exc of
-                           ErrorCall    msg  -> Abortion InternalServerError emptyHeaders $ Just msg
-                           IOException  ioE  -> Abortion InternalServerError emptyHeaders $ Just $ formatIOE ioE
-                           DynException dynE -> case fromDynamic dynE of
-                                                  Just a
-                                                      -> a :: Abortion
-                                                  Nothing
-                                                      -> Abortion InternalServerError emptyHeaders
-                                                         $ Just $ show exc
-                           _                 -> Abortion InternalServerError emptyHeaders $ Just $ show exc
+          = do let abo = toAbortion exc
                    conf = itrConfig itr
                -- まだ DecidingHeader 以前の状態だったら、この途中終了
                -- を應答に反映させる餘地がある。さうでなければ stderr