X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=compiler%2Ftypecheck%2FTcExpr.lhs;h=d5d6b6b842728008288258588a1bbf65bbd14ae6;hb=e9f9ec1e57d53b9302a395ce0d02c0fa59e28341;hp=47e4c6f029a3717339240e891550daee6e93b93e;hpb=0cffd31b0f25c2a31ed6eff2c0c0b1b1a8a8d507;p=ghc-hetmet.git

diff --git a/compiler/typecheck/TcExpr.lhs b/compiler/typecheck/TcExpr.lhs
index 47e4c6f..d5d6b6b 100644
--- a/compiler/typecheck/TcExpr.lhs
+++ b/compiler/typecheck/TcExpr.lhs
@@ -850,12 +850,12 @@ tcId :: InstOrigin
      -> BoxyRhoType				-- Result type
      -> TcM (HsExpr TcId)
 tcId orig fun_name res_ty
-  = do	{ traceTc (text "tcId" <+> ppr fun_name <+> ppr res_ty)
-	; (fun, fun_ty) <- lookupFun orig fun_name
-
+  = do	{ (fun, fun_ty) <- lookupFun orig fun_name
+        ; traceTc (text "tcId" <+> ppr fun_name <+> (ppr fun_ty $$ ppr res_ty))
+	
 	-- Split up the function type
 	; let (tv_theta_prs, fun_tau) = tcMultiSplitSigmaTy fun_ty
-	      qtvs = concatMap fst tv_theta_prs	-- Quantified tyvars
+	      qtvs = concatMap fst tv_theta_prs  	-- Quantified tyvars
 	      tau_qtvs = exactTyVarsOfType fun_tau	-- Mentioned in the tau part
 	; qtv_tys <- preSubType qtvs tau_qtvs fun_tau res_ty
 
@@ -863,6 +863,8 @@ tcId orig fun_name res_ty
 	; let res_subst = zipTopTvSubst qtvs qtv_tys
 	      fun_tau'  = substTy res_subst fun_tau
 
+        ; traceTc (text "tcId2" <+> ppr fun_name <+> (ppr qtvs $$ ppr qtv_tys))
+
 	; co_fn <- tcSubExp orig fun_tau' res_ty
 
 	-- And pack up the results