[project @ 2002-11-21 17:54:54 by simonpj]

[ghc-hetmet.git] / ghc / compiler / deSugar / DsGRHSs.lhs

diff --git a/ghc/compiler/deSugar/DsGRHSs.lhs b/ghc/compiler/deSugar/DsGRHSs.lhs
index 3f79cf8..5f101fc 100644 (file)
--- a/ghc/compiler/deSugar/DsGRHSs.lhs
+++ b/ghc/compiler/deSugar/DsGRHSs.lhs
@@ -14,7 +14,7 @@ import {-# SOURCE #-} Match   ( matchSinglePat )
 import HsSyn           ( Stmt(..), HsExpr(..), GRHSs(..), GRHS(..), HsMatchContext(..) )
 import TcHsSyn         ( TypecheckedGRHSs, TypecheckedPat, TypecheckedStmt, TypecheckedMatchContext )
 import CoreSyn         ( CoreExpr )
-import TcType          ( Type )
+import Type            ( Type )
 
 import DsMonad
 import DsUtils
@@ -49,7 +49,7 @@ dsGRHSs :: TypecheckedMatchContext -> [TypecheckedPat]        -- These are to build a M
        -> TypecheckedGRHSs                             -- Guarded RHSs
        -> DsM (Type, MatchResult)
 
-dsGRHSs kind pats (GRHSs grhss binds (Just ty))
+dsGRHSs kind pats (GRHSs grhss binds ty)
   = mapDs (dsGRHS kind pats) grhss             `thenDs` \ match_results ->
     let 
        match_result1 = foldr1 combineMatchResults match_results
@@ -74,7 +74,7 @@ matchGuard :: [TypecheckedStmt]       -- Guard
            -> DsMatchContext            -- Context
           -> DsM MatchResult
 
--- See comments with HsExpr.HsStmt re what an ExprStmt means
+-- See comments with HsExpr.Stmt re what an ExprStmt means
 -- Here we must be in a guard context (not do-expression, nor list-comp)       
 
 matchGuard [ResultStmt expr locn] ctx 
@@ -83,12 +83,12 @@ matchGuard [ResultStmt expr locn] ctx
 
        -- ExprStmts must be guards
        -- Turn an "otherwise" guard is a no-op
-matchGuard (ExprStmt (HsVar v) _ : stmts) ctx
+matchGuard (ExprStmt (HsVar v) _ _ : stmts) ctx
   |  v `hasKey` otherwiseIdKey
   || v `hasKey` trueDataConKey
   = matchGuard stmts ctx
 
-matchGuard (ExprStmt expr locn : stmts) ctx
+matchGuard (ExprStmt expr _ locn : stmts) ctx
   = matchGuard stmts ctx               `thenDs` \ match_result ->
     putSrcLocDs locn (dsExpr expr)     `thenDs` \ pred_expr ->
     returnDs (mkGuardedMatchResult pred_expr match_result)