X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=compiler%2Futils%2FOutputable.lhs;h=023d7d01d183fe5ae7ce2332e2d049a09f8a7fda;hb=4d926e46bacf11ba9d7714c3f36f507c67fef0ba;hp=548dc2ca8b53b72f94675506318e22d9a579f0b8;hpb=6e5eafac797562bc2a72068dd27f19adc75bdb41;p=ghc-hetmet.git

diff --git a/compiler/utils/Outputable.lhs b/compiler/utils/Outputable.lhs
index 548dc2c..023d7d0 100644
--- a/compiler/utils/Outputable.lhs
+++ b/compiler/utils/Outputable.lhs
@@ -36,7 +36,9 @@ module Outputable (
 	printSDoc, printErrs, hPrintDump, printDump,
 	printForC, printForAsm, printForUser, printForUserPartWay,
 	pprCode, mkCodeStyle,
-	showSDoc, showSDocForUser, showSDocDebug, showSDocDump,
+	showSDoc, showSDocOneLine,
+    showSDocForUser, showSDocDebug, showSDocDump, showSDocDumpOneLine,
+    showPpr,
 	showSDocUnqual, showsPrecSDoc,
 
 	pprInfixVar, pprPrefixVar,
@@ -316,7 +318,13 @@ mkCodeStyle = PprCode
 -- However, Doc *is* an instance of Show
 -- showSDoc just blasts it out as a string
 showSDoc :: SDoc -> String
-showSDoc d = show (d defaultUserStyle)
+showSDoc d = Pretty.showDocWith PageMode (d defaultUserStyle)
+
+-- This shows an SDoc, but on one line only. It's cheaper than a full
+-- showSDoc, designed for when we're getting results like "Foo.bar"
+-- and "foo{uniq strictness}" so we don't want fancy layout anyway.
+showSDocOneLine :: SDoc -> String
+showSDocOneLine d = Pretty.showDocWith PageMode (d defaultUserStyle)
 
 showSDocForUser :: PrintUnqualified -> SDoc -> String
 showSDocForUser unqual doc = show (doc (mkUserStyle unqual AllTheWay))
@@ -329,10 +337,16 @@ showsPrecSDoc :: Int -> SDoc -> ShowS
 showsPrecSDoc p d = showsPrec p (d defaultUserStyle)
 
 showSDocDump :: SDoc -> String
-showSDocDump d = show (d PprDump)
+showSDocDump d = Pretty.showDocWith PageMode (d PprDump)
+
+showSDocDumpOneLine :: SDoc -> String
+showSDocDumpOneLine d = Pretty.showDocWith OneLineMode (d PprDump)
 
 showSDocDebug :: SDoc -> String
 showSDocDebug d = show (d PprDebug)
+
+showPpr :: Outputable a => a -> String
+showPpr = showSDoc . ppr
 \end{code}
 
 \begin{code}