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authorMatthew Pickering <matthewtpickering@gmail.com>2019-01-20 20:58:01 -0500
committerBen Gamari <ben@smart-cactus.org>2019-01-27 08:32:55 -0500
commit10faf44d97095b2f8516b6d449d266f6889dcd70 (patch)
treed1d0afdc5e54bef7d5c95619d1c86e372e4eff08 /ghc
parente7164384c26e9d177304ab77fdf6c16431832d7f (diff)
downloadhaskell-10faf44d97095b2f8516b6d449d266f6889dcd70.tar.gz
Don't overwrite the set log_action when using --interactive
-ddump-json didn't work with --interactive as --interactive overwrote the log_action in terms of defaultLogAction. Reviewers: bgamari Subscribers: rwbarton, thomie, carter GHC Trac Issues: #14078 Differential Revision: https://phabricator.haskell.org/D4533
Diffstat (limited to 'ghc')
-rw-r--r--ghc/GHCi/UI.hs12
1 files changed, 8 insertions, 4 deletions
diff --git a/ghc/GHCi/UI.hs b/ghc/GHCi/UI.hs
index 10ca51124e..abb3d78fae 100644
--- a/ghc/GHCi/UI.hs
+++ b/ghc/GHCi/UI.hs
@@ -445,7 +445,10 @@ interactiveUI config srcs maybe_exprs = do
lastErrLocationsRef <- liftIO $ newIORef []
progDynFlags <- GHC.getProgramDynFlags
_ <- GHC.setProgramDynFlags $
- progDynFlags { log_action = ghciLogAction lastErrLocationsRef }
+ -- Ensure we don't override the user's log action lest we break
+ -- -ddump-json (#14078)
+ progDynFlags { log_action = ghciLogAction (log_action progDynFlags)
+ lastErrLocationsRef }
when (isNothing maybe_exprs) $ do
-- Only for GHCi (not runghc and ghc -e):
@@ -536,9 +539,10 @@ resetLastErrorLocations = do
st <- getGHCiState
liftIO $ writeIORef (lastErrorLocations st) []
-ghciLogAction :: IORef [(FastString, Int)] -> LogAction
-ghciLogAction lastErrLocations dflags flag severity srcSpan style msg = do
- defaultLogAction dflags flag severity srcSpan style msg
+ghciLogAction :: LogAction -> IORef [(FastString, Int)] -> LogAction
+ghciLogAction old_log_action lastErrLocations
+ dflags flag severity srcSpan style msg = do
+ old_log_action dflags flag severity srcSpan style msg
case severity of
SevError -> case srcSpan of
RealSrcSpan rsp -> modifyIORef lastErrLocations