diff options
| author | Vladislav Zavialov <vlad.z.4096@gmail.com> | 2020-04-13 16:29:44 +0300 |
|---|---|---|
| committer | Vladislav Zavialov <vlad.z.4096@gmail.com> | 2020-04-23 17:21:28 +0300 |
| commit | e21f3023b095d9bbd000330b56aaaa2977134335 (patch) | |
| tree | e4f66eb46539c3d62b47648297915d19d8105f6a /ghc/Main.hs | |
| parent | 8ea37b01b6ab16937f7b528b6bbae9fade9f1361 (diff) | |
| download | haskell-wip/semigroup-sdoc.tar.gz | |
Use Semigroup's (<>) for Doc/SDocwip/semigroup-sdoc
Before this patch, Outputable.hs defined its own (<>) which caused
conflicts with (Data.Semigroup.<>) and thus led to inconvenience.
However, replacing it is not trivial due to a different fixity:
http://www.haskell.org/pipermail/libraries/2011-November/017066.html
Nevertheless, it is possible to update the pretty-printing code to work
with (<>) of a different fixitiy, and that's what this patch implements.
Now Doc and SDoc are instances of Semigroup.
Diffstat (limited to 'ghc/Main.hs')
| -rw-r--r-- | ghc/Main.hs | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/ghc/Main.hs b/ghc/Main.hs index 7a356b920a..0699e8d075 100644 --- a/ghc/Main.hs +++ b/ghc/Main.hs @@ -862,7 +862,7 @@ dumpFastStringStats dflags = do -- the "z-encoded" total. putMsg dflags msg where - x `pcntOf` y = int ((x * 100) `quot` y) Outputable.<> char '%' + x `pcntOf` y = int ((x * 100) `quot` y) <> char '%' showPackages, dumpPackages, dumpPackagesSimple :: DynFlags -> IO () showPackages dflags = putStrLn (showSDoc dflags (pprPackages (pkgState dflags))) |