Haskell Program Coverage

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

diff --git a/compiler/deSugar/DsBinds.lhs b/compiler/deSugar/DsBinds.lhs
index 85581c9..27d4147 100644 (file)
--- a/compiler/deSugar/DsBinds.lhs
+++ b/compiler/deSugar/DsBinds.lhs
@@ -1,7 +1,9 @@
 %
+% (c) The University of Glasgow 2006
 % (c) The GRASP/AQUA Project, Glasgow University, 1992-1998
 %
-\section[DsBinds]{Pattern-matching bindings (HsBinds and MonoBinds)}
+
+Pattern-matching bindings (HsBinds and MonoBinds)
 
 Handles @HsBinds@; those at the top level require different handling,
 in that the @Rec@/@NonRec@/etc structure is thrown away (whereas at
@@ -15,36 +17,37 @@ module DsBinds ( dsTopLHsBinds, dsLHsBinds, decomposeRuleLhs,
 
 #include "HsVersions.h"
 
-
 import {-# SOURCE #-}  DsExpr( dsLExpr, dsExpr )
 import {-# SOURCE #-}  Match( matchWrapper )
 
 import DsMonad
-import DsGRHSs         ( dsGuarded )
+import DsGRHSs
 import DsUtils
 
 import HsSyn           -- lots of things
 import CoreSyn         -- lots of things
-import CoreUtils       ( exprType, mkInlineMe, mkSCC )
-
-import OccurAnal       ( occurAnalyseExpr )
-import CostCentre      ( mkAutoCC, IsCafCC(..) )
-import Id              ( Id, DictId, idType, idName, mkLocalId, setInlinePragma )
-import Rules           ( addIdSpecialisations, mkLocalRule )
-import Var             ( TyVar, Var, isGlobalId, setIdNotExported )
+import CoreUtils
+
+import TcHsSyn         ( mkArbitraryType )     -- Mis-placed?
+import OccurAnal
+import CostCentre
+import Module
+import Id
+import Rules
+import Var              ( TyVar, Var )
 import VarEnv
-import Type            ( mkTyVarTy, substTyWith )
-import TysWiredIn      ( voidTy )
-import Module          ( Module )
+import Type
+import TysWiredIn
 import Outputable
-import SrcLoc          ( Located(..) )
-import Maybes          ( catMaybes, orElse )
-import Bag             ( bagToList )
-import BasicTypes      ( Activation(..), InlineSpec(..), isAlwaysActive )
-import Monad           ( foldM )
-import FastString      ( mkFastString )
-import List            ( (\\) )
+import SrcLoc
+import Maybes
+import Bag
+import BasicTypes hiding ( TopLevel )
+import FastString
 import Util            ( mapSnd )
+
+import Control.Monad
+import Data.List
 \end{code}
 
 %************************************************************************
@@ -86,9 +89,10 @@ dsHsBind auto_scc rest (VarBind var expr)
     addDictScc var core_expr   `thenDs` \ core_expr' ->
     returnDs ((var, core_expr') : rest)
 
-dsHsBind auto_scc rest (FunBind { fun_id = L _ fun, fun_matches = matches, fun_co_fn = co_fn })
+dsHsBind auto_scc rest (FunBind { fun_id = L _ fun, fun_matches = matches, fun_co_fn = co_fn, fun_tick = tick })
   = matchWrapper (FunRhs (idName fun)) matches         `thenDs` \ (args, body) ->
-    dsCoercion co_fn (return (mkLams args body))       `thenDs` \ rhs ->
+    mkOptTickBox tick body                             `thenDs` \ body' ->
+    dsCoercion co_fn (return (mkLams args body'))      `thenDs` \ rhs ->
     returnDs ((fun,rhs) : rest)
 
 dsHsBind auto_scc rest (PatBind { pat_lhs = pat, pat_rhs = grhss, pat_rhs_ty = ty })
@@ -176,7 +180,7 @@ dsHsBind auto_scc rest (AbsBinds all_tyvars dicts exports binds)
 
              mk_bind ((tyvars, global, local, prags), n)       -- locals !! n == local
                =       -- Need to make fresh locals to bind in the selector, because
-                       -- some of the tyvars will be bound to voidTy
+                       -- some of the tyvars will be bound to 'Any'
                  do { locals' <- newSysLocalsDs (map substitute local_tys)
                     ; tup_id  <- newSysLocalDs  (substitute tup_ty)
                     ; mb_specs <- mapM (dsSpec all_tyvars dicts tyvars global local core_bind) 
@@ -189,7 +193,7 @@ dsHsBind auto_scc rest (AbsBinds all_tyvars dicts exports binds)
                     ; returnDs ((global', rhs) : spec_binds) }
                where
                  mk_ty_arg all_tyvar | all_tyvar `elem` tyvars = mkTyVarTy all_tyvar
-                                     | otherwise               = voidTy
+                                     | otherwise               = mkArbitraryType all_tyvar
                  ty_args    = map mk_ty_arg all_tyvars
                  substitute = substTyWith all_tyvars ty_args
 
@@ -264,11 +268,11 @@ dsSpec all_tvs dicts tvs poly_id mono_id mono_bind
                                (mkVarApps (Var spec_id) bndrs)
        }
   where
-       -- Bind to voidTy any of all_ptvs that aren't 
+       -- Bind to Any any of all_ptvs that aren't 
        -- relevant for this particular function 
     fix_up body | null void_tvs = body
                | otherwise     = mkTyApps (mkLams void_tvs body) 
-                                          (map (const voidTy) void_tvs)
+                                          (map mkArbitraryType void_tvs)
     void_tvs = all_tvs \\ tvs
 
     msg = hang (ptext SLIT("Specialisation too complicated to desugar; ignored"))