diff options
Diffstat (limited to 'libraries/base/GHC/Conc/Sync.hs')
| -rw-r--r-- | libraries/base/GHC/Conc/Sync.hs | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/libraries/base/GHC/Conc/Sync.hs b/libraries/base/GHC/Conc/Sync.hs index 5c3e63a8e3..87491993f8 100644 --- a/libraries/base/GHC/Conc/Sync.hs +++ b/libraries/base/GHC/Conc/Sync.hs @@ -113,7 +113,7 @@ import GHC.IORef import GHC.MVar import GHC.Ptr import GHC.Real ( fromIntegral ) -import GHC.Show ( Show(..), showString ) +import GHC.Show ( Show(..), showParen, showString ) import GHC.Stable ( StablePtr(..) ) import GHC.Weak @@ -145,7 +145,7 @@ This misfeature will hopefully be corrected at a later date. -- | @since 4.2.0.0 instance Show ThreadId where - showsPrec d t = + showsPrec d t = showParen (d >= 11) $ showString "ThreadId " . showsPrec d (getThreadId (id2TSO t)) |