import Data.IORef
import System.IO
import System.IO.Error ( try, isDoesNotExistError )
-import Prelude hiding (init)
+import Prelude hiding (init, catch)
-- -----------------------------------------------------------------------------
-- graph is still retained in the Session. We can tell which modules
-- were successfully loaded by inspecting the Session's HPT.
mb_graph <- depanal s [] False
- case mb_graph of
- Just mod_graph -> load2 s how_much mod_graph
+ case mb_graph of
+ Just mod_graph -> catchingFailure $ load2 s how_much mod_graph
Nothing -> return Failed
+ where catchingFailure f = f `catch` \e -> do
+ hsc_env <- readIORef ref
+ -- trac #1565 / test ghci021:
+ -- let bindings may explode if we try to use them after
+ -- failing to reload
+ writeIORef ref $! hsc_env{ hsc_IC = emptyInteractiveContext }
+ throw e
load2 s@(Session ref) how_much mod_graph = do
guessOutputFile s