Convert more UniqFM's back to LazyUniqFM's

[ghc-hetmet.git] / compiler / main / HscTypes.lhs

diff --git a/compiler/main/HscTypes.lhs b/compiler/main/HscTypes.lhs
index 6b1d053..07c7568 100644 (file)
--- a/compiler/main/HscTypes.lhs
+++ b/compiler/main/HscTypes.lhs
@@ -106,11 +106,11 @@ import BasicTypes ( Version, initialVersion, IPName,
 import IfaceSyn
 import FiniteMap       ( FiniteMap )
 import CoreSyn         ( CoreRule )
-import Maybes          ( orElse, expectJust, catMaybes, seqMaybe )
+import Maybes          ( orElse, expectJust, catMaybes )
 import Outputable
 import BreakArray
 import SrcLoc          ( SrcSpan, Located )
-import UniqFM          ( lookupUFM, eltsUFM, emptyUFM )
+import LazyUniqFM              ( lookupUFM, eltsUFM, emptyUFM )
 import UniqSupply      ( UniqSupply )
 import FastString      ( FastString )
 import StringBuffer    ( StringBuffer )
@@ -120,6 +120,7 @@ import System.Time  ( ClockTime )
 import Data.IORef
 import Data.Array       ( Array, array )
 import Data.List
+import Control.Monad    ( mplus )
 \end{code}
 
 
@@ -277,7 +278,7 @@ lookupIfaceByModule dflags hpt pit mod
        -- in the HPT.  If it's not from the home package it's wrong to look
        -- in the HPT, because the HPT is indexed by *ModuleName* not Module
     fmap hm_iface (lookupUFM hpt (moduleName mod)) 
-    `seqMaybe` lookupModuleEnv pit mod
+    `mplus` lookupModuleEnv pit mod
 
   | otherwise = lookupModuleEnv pit mod                -- Look in PIT only