diff options
| author | Sylvain Henry <sylvain@haskus.fr> | 2021-06-02 15:04:51 +0200 |
|---|---|---|
| committer | Marge Bot <ben+marge-bot@smart-cactus.org> | 2021-06-22 02:33:38 -0400 |
| commit | 14956cb89d8548e531c99821ad504b4f35b5509a (patch) | |
| tree | 175622c7f73df41c1e836be30a27c83914374ed6 /compiler/GHC/Utils/Outputable.hs | |
| parent | 65bad0de6fd1431f0670002d68974adce3e9fc4a (diff) | |
| download | haskell-14956cb89d8548e531c99821ad504b4f35b5509a.tar.gz | |
Put tracing functions into their own module
Now that Outputable is independent of DynFlags, we can put tracing
functions using SDocs into their own module that doesn't transitively
depend on any GHC.Driver.* module.
A few modules needed to be moved to avoid loops in DEBUG mode.
Diffstat (limited to 'compiler/GHC/Utils/Outputable.hs')
| -rw-r--r-- | compiler/GHC/Utils/Outputable.hs | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/compiler/GHC/Utils/Outputable.hs b/compiler/GHC/Utils/Outputable.hs index 7d33007ead..7d0436f2f2 100644 --- a/compiler/GHC/Utils/Outputable.hs +++ b/compiler/GHC/Utils/Outputable.hs @@ -57,6 +57,7 @@ module GHC.Utils.Outputable ( showSDocUnsafe, showPprUnsafe, renderWithContext, + pprDebugAndThen, pprInfixVar, pprPrefixVar, pprHsChar, pprHsString, pprHsBytes, @@ -607,6 +608,13 @@ showPprUnsafe :: Outputable a => a -> String showPprUnsafe a = renderWithContext defaultSDocContext (ppr a) +pprDebugAndThen :: SDocContext -> (String -> a) -> SDoc -> SDoc -> a +pprDebugAndThen ctx cont heading pretty_msg + = cont (renderWithContext ctx doc) + where + doc = withPprStyle defaultDumpStyle (sep [heading, nest 2 pretty_msg]) + + isEmpty :: SDocContext -> SDoc -> Bool isEmpty ctx sdoc = Pretty.isEmpty $ runSDoc sdoc (ctx {sdocPprDebug = True}) |