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author | Michał Sośnicki <sosnicki.michal@gmail.com> | 2015-11-18 16:02:53 +0100 |
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committer | Ben Gamari <ben@smart-cactus.org> | 2015-11-18 17:31:20 +0100 |
commit | c61759d5917996a10b06a286eb5b776e4069e35c (patch) | |
tree | 7fc3b9a29cec4f98e28278d23e5000743d0d3956 /compiler/deSugar/DsUtils.hs | |
parent | 07eb258dfcbf8a67e4e931397128b7255356d19e (diff) | |
download | haskell-c61759d5917996a10b06a286eb5b776e4069e35c.tar.gz |
Fix inconsistent pretty-printing of type families
After the changes, the three functions used to print type families
were identical, so they are refactored into one.
Original RHSs of data instance declarations are recreated and
printed in user error messages.
RHSs containing representation TyCons are printed in the
Coercion Axioms section in a typechecker dump.
Add vbar to the list of SDocs exported by Outputable.
Replace all text "|" docs with it.
Fixes #10839
Reviewers: goldfire, jstolarek, austin, bgamari
Reviewed By: jstolarek
Subscribers: jstolarek, thomie
Differential Revision: https://phabricator.haskell.org/D1441
GHC Trac Issues: #10839
Diffstat (limited to 'compiler/deSugar/DsUtils.hs')
-rw-r--r-- | compiler/deSugar/DsUtils.hs | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/compiler/deSugar/DsUtils.hs b/compiler/deSugar/DsUtils.hs index a14c608d1c..98f7f0f051 100644 --- a/compiler/deSugar/DsUtils.hs +++ b/compiler/deSugar/DsUtils.hs @@ -463,7 +463,7 @@ mkErrorAppDs err_id ty msg = do src_loc <- getSrcSpanDs dflags <- getDynFlags let - full_msg = showSDoc dflags (hcat [ppr src_loc, text "|", msg]) + full_msg = showSDoc dflags (hcat [ppr src_loc, vbar, msg]) core_msg = Lit (mkMachString full_msg) -- mkMachString returns a result of type String# return (mkApps (Var err_id) [Type ty, core_msg]) |