X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=compiler%2Ftypecheck%2FTcRnMonad.lhs;h=9193eb5ea01fb26b766766614519a01d6f41a495;hb=db4f42a8e38bfead11f5af78557e18b9f42b10b3;hp=37e11663885c4829e4dd6085859a24ca61b4865f;hpb=27310213397bb89555bb03585e057ba1b017e895;p=ghc-hetmet.git

diff --git a/compiler/typecheck/TcRnMonad.lhs b/compiler/typecheck/TcRnMonad.lhs
index 37e1166..9193eb5 100644
--- a/compiler/typecheck/TcRnMonad.lhs
+++ b/compiler/typecheck/TcRnMonad.lhs
@@ -114,11 +114,12 @@ initTc hsc_env hsc_src keep_rn_syntax mod do_this
 		tcg_warns     = NoWarnings,
 		tcg_anns      = [],
 		tcg_insts     = [],
-		tcg_fam_insts = [],
-		tcg_rules     = [],
-		tcg_fords     = [],
-		tcg_dfun_n    = dfun_n_var,
-		tcg_keep      = keep_var,
+                tcg_fam_insts = [],
+                tcg_rules     = [],
+                tcg_fords     = [],
+                tcg_vects     = [],
+                tcg_dfun_n    = dfun_n_var,
+                tcg_keep      = keep_var,
 		tcg_doc_hdr   = Nothing,
                 tcg_hpc       = False,
                 tcg_main      = Nothing
@@ -405,7 +406,6 @@ traceRn, traceSplice :: SDoc -> TcRn ()
 traceRn      = traceOptTcRn Opt_D_dump_rn_trace
 traceSplice  = traceOptTcRn Opt_D_dump_splices
 
-
 traceIf, traceHiDiffs :: SDoc -> TcRnIf m n ()
 traceIf      = traceOptIf Opt_D_dump_if_trace
 traceHiDiffs = traceOptIf Opt_D_dump_hi_diffs
@@ -896,6 +896,9 @@ add_err_tcm tidy_env err_msg loc ctxt
 mkErrInfo :: TidyEnv -> [ErrCtxt] -> TcM SDoc
 -- Tidy the error info, trimming excessive contexts
 mkErrInfo env ctxts
+ | opt_PprStyle_Debug     -- In -dppr-debug style the output 
+ = return empty	          -- just becomes too voluminous
+ | otherwise
  = go 0 env ctxts
  where
    go :: Int -> TidyEnv -> [ErrCtxt] -> TcM SDoc