From 5295316c16a2abfa56796fad93017a45c5f3adf8 Mon Sep 17 00:00:00 2001
From: sof <unknown>
Date: Thu, 4 Sep 1997 20:19:15 +0000
Subject: [PATCH] [project @ 1997-09-04 20:19:15 by sof] ppr wibble; new
functions: dumpIfSet, doIfSet
---
ghc/compiler/main/ErrUtils.lhs | 28 +++++++++++++++++++++++++---
1 file changed, 25 insertions(+), 3 deletions(-)
diff --git a/ghc/compiler/main/ErrUtils.lhs b/ghc/compiler/main/ErrUtils.lhs
index 6e6e99aae994..486cb6ed072f 100644
--- a/ghc/compiler/main/ErrUtils.lhs
+++ b/ghc/compiler/main/ErrUtils.lhs
@@ -12,14 +12,15 @@ module ErrUtils (
addShortErrLocLine, addShortWarnLocLine,
dontAddErrLoc,
pprBagOfErrors,
- ghcExit
+ ghcExit,
+ doIfSet, dumpIfSet
) where
IMP_Ubiq(){-uitous-}
import CmdLineOpts ( opt_PprUserLength )
import Bag --( bagToList )
-import Outputable ( PprStyle(..), Outputable(..) )
+import Outputable ( PprStyle(..), Outputable(..), printErrs )
import Pretty
import SrcLoc ( noSrcLoc, SrcLoc{-instance-} )
\end{code}
@@ -53,7 +54,8 @@ dontAddErrLoc title rest_of_err_msg sty
pprBagOfErrors :: PprStyle -> Bag Error -> Doc
pprBagOfErrors sty bag_of_errors
- = let pretties = map ( \ e -> e sty ) (bagToList bag_of_errors) in
+ = let pretties = map ( \ e -> e sty ) (bagToList bag_of_errors)
+ in
vcat (map (\ p -> ($$) space p) pretties)
\end{code}
@@ -65,3 +67,23 @@ ghcExit val
then error "Compilation had errors\n"
else return ()
\end{code}
+
+\begin{code}
+doIfSet :: Bool -> IO () -> IO ()
+doIfSet flag action | flag = action
+ | otherwise = return ()
+\end{code}
+
+\begin{code}
+dumpIfSet :: Bool -> String -> Doc -> IO ()
+dumpIfSet flag hdr doc
+ | not flag = return ()
+ | otherwise = printErrs dump
+ where
+ dump = (line <+> text hdr <+> line)
+ $$
+ doc
+ $$
+ text ""
+ line = text (take 20 (repeat '='))
+\end{code}
--
GitLab