Completely new treatment of INLINE pragmas (big patch)

[ghc-hetmet.git] / compiler / typecheck / TcInstDcls.lhs

diff --git a/compiler/typecheck/TcInstDcls.lhs b/compiler/typecheck/TcInstDcls.lhs
index f3d37e7..965db15 100644 (file)
--- a/compiler/typecheck/TcInstDcls.lhs
+++ b/compiler/typecheck/TcInstDcls.lhs
@@ -571,7 +571,7 @@ tcInstDecl2 :: InstInfo Name -> TcM (LHsBinds Id)
 --      newtype N a = MkN (Tree [a]) deriving( Foo Int )
 --
 -- The newtype gives an FC axiom looking like
---      axiom CoN a ::  N a :=: Tree [a]
+--      axiom CoN a ::  N a ~ Tree [a]
 --   (see Note [Newtype coercions] in TyCon for this unusual form of axiom)
 --
 -- So all need is to generate a binding looking like:
@@ -626,7 +626,7 @@ tcInstDecl2 (InstInfo { iSpec = ispec, iBinds = NewTypeDerived })
         ; let coerced_rep_dict = wrapId the_coercion (instToId rep_dict)
 
         ; body <- make_body cls_tycon cls_inst_tys sc_dicts coerced_rep_dict
-        ; let dict_bind = noLoc $ VarBind (instToId this_dict) (noLoc body)
+       ; let dict_bind = mkVarBind (instToId this_dict) (noLoc body)
 
         ; return (unitBag $ noLoc $
                   AbsBinds inst_tvs' (map instToVar dfun_dicts)
@@ -637,7 +637,7 @@ tcInstDecl2 (InstInfo { iSpec = ispec, iBinds = NewTypeDerived })
       --        make_coercion
       -- The inst_head looks like (C s1 .. sm (T a1 .. ak))
       -- But we want the coercion (C s1 .. sm (sym (CoT a1 .. ak)))
-      --        with kind (C s1 .. sm (T a1 .. ak)  :=:  C s1 .. sm <rep_ty>)
+      --        with kind (C s1 .. sm (T a1 .. ak)  ~  C s1 .. sm <rep_ty>)
       --        where rep_ty is the (eta-reduced) type rep of T
       -- So we just replace T with CoT, and insert a 'sym'
       -- NB: we know that k will be >= arity of CoT, because the latter fully eta-reduced
@@ -744,7 +744,7 @@ tcInstDecl2 (InstInfo { iSpec = ispec, iBinds = VanillaInst monobinds uprags })
     checkSigTyVars inst_tyvars'
 
     -- Deal with 'SPECIALISE instance' pragmas
-    prags <- tcPrags dfun_id (filter isSpecInstLSig uprags)
+    prags <- tcPrags NonRecursive dfun_id (filter isSpecInstLSig uprags)
 
     -- Create the result bindings
     let
@@ -763,7 +763,7 @@ tcInstDecl2 (InstInfo { iSpec = ispec, iBinds = VanillaInst monobinds uprags })
                 --      See Note [Inline dfuns] below
 
         sc_dict_vars  = map instToVar sc_dicts
-        dict_bind     = L loc (VarBind this_dict_id dict_rhs)
+        dict_bind     = mkVarBind this_dict_id dict_rhs
         dict_rhs      = foldl (\ f a -> L loc (HsApp f (L loc a))) inst_constr meth_exprs
        inst_constr   = L loc $ wrapId (mkWpApps sc_dict_vars <.> mkWpTyApps inst_tys')
                                       (dataConWrapId dict_constr)
@@ -774,7 +774,6 @@ tcInstDecl2 (InstInfo { iSpec = ispec, iBinds = VanillaInst monobinds uprags })
                 -- member) are dealt with by the common MkId.mkDataConWrapId code rather
                 -- than needing to be repeated here.
 
-
         main_bind = noLoc $ AbsBinds
                             inst_tyvars'
                             dfun_lam_vars
@@ -825,7 +824,7 @@ tcInstanceMethod loc clas tyvars dfun_dicts theta inst_tys
                -- then clashes with its friends
        ; uniq1 <- newUnique
        ; let local_meth_name = mkInternalName uniq1 sel_occ loc   -- Same OccName
-             this_dict_bind  = L loc $ VarBind (instToId cloned_this) $ 
+             this_dict_bind  = mkVarBind (instToId cloned_this) $ 
                                L loc $ wrapId meth_wrapper dfun_id
              mb_this_bind | null tyvars = Nothing
                           | otherwise   = Just (cloned_this, this_dict_bind)