import Outputable
import UniqSupply
import Unique
+import UniqFM
import DynFlags
import StaticFlags
import FastString
Left exn -> recover
Right res -> returnM res }
+
+-----------------------
+mapAndRecoverM :: (a -> TcRn b) -> [a] -> TcRn [b]
+-- Drop elements of the input that fail, so the result
+-- list can be shorter than the argument list
+mapAndRecoverM f [] = return []
+mapAndRecoverM f (x:xs) = do { mb_r <- tryM (f x)
+ ; rs <- mapAndRecoverM f xs
+ ; return (case mb_r of
+ Left _ -> rs
+ Right r -> r:rs) }
+
+
-----------------------
tryTc :: TcRn a -> TcRn (Messages, Maybe a)
-- (tryTc m) executes m, and returns
recordThUse :: TcM ()
recordThUse = do { env <- getGblEnv; writeMutVar (tcg_th_used env) True }
-keepAliveTc :: Name -> TcM () -- Record the name in the keep-alive set
-keepAliveTc n = do { env <- getGblEnv;
- ; updMutVar (tcg_keep env) (`addOneToNameSet` n) }
+keepAliveTc :: Id -> TcM () -- Record the name in the keep-alive set
+keepAliveTc id
+ | isLocalId id = do { env <- getGblEnv;
+ ; updMutVar (tcg_keep env) (`addOneToNameSet` idName id) }
+ | otherwise = return ()
keepAliveSetTc :: NameSet -> TcM () -- Record the name in the keep-alive set
keepAliveSetTc ns = do { env <- getGblEnv;
mkIfLclEnv :: Module -> SDoc -> IfLclEnv
mkIfLclEnv mod loc = IfLclEnv { if_mod = mod,
if_loc = loc,
- if_tv_env = emptyOccEnv,
- if_id_env = emptyOccEnv }
+ if_tv_env = emptyUFM,
+ if_id_env = emptyUFM }
initIfaceTcRn :: IfG a -> TcRn a
initIfaceTcRn thing_inside