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Merge pull request #2195 from github/ghci-slowness

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Prevent slowdowns when pretty-printing in ghci.
This commit is contained in:
Patrick Thomson 2018-10-04 15:57:42 -04:00 committed by GitHub
commit 932a613cf4
4 changed files with 11 additions and 8 deletions
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2
.ghci
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@ -3,7 +3,7 @@
-- See docs/💡ProTip!.md -- See docs/💡ProTip!.md
:undef pretty :undef pretty
:def pretty \ _ -> return (unlines [":set -interactive-print Semantic.Util.prettyShow"]) :def pretty \ _ -> return ":set -interactive-print Semantic.Util.Pretty.prettyShow"
-- See docs/💡ProTip!.md -- See docs/💡ProTip!.md
:undef no-pretty :undef no-pretty

1
semantic.cabal
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@ -197,6 +197,7 @@ library
, Semantic.Telemetry.Stat , Semantic.Telemetry.Stat
, Semantic.Timeout , Semantic.Timeout
, Semantic.Util , Semantic.Util
, Semantic.Util.Pretty
, Semantic.Util.Rewriting , Semantic.Util.Rewriting
, Semantic.Version , Semantic.Version
-- Serialization -- Serialization

8
src/Semantic/Util.hs
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@ -24,8 +24,6 @@ import Data.List (uncons)
import Data.Project hiding (readFile) import Data.Project hiding (readFile)
import Data.Quieterm (quieterm) import Data.Quieterm (quieterm)
import Data.Sum (weaken) import Data.Sum (weaken)
import Language.Haskell.HsColour
import Language.Haskell.HsColour.Colourise
import Parsing.Parser import Parsing.Parser
import Prologue hiding (weaken) import Prologue hiding (weaken)
import Semantic.Config import Semantic.Config
@ -35,7 +33,7 @@ import Semantic.Task
import Semantic.Telemetry (LogQueue, StatQueue) import Semantic.Telemetry (LogQueue, StatQueue)
import System.Exit (die) import System.Exit (die)
import System.FilePath.Posix (takeDirectory) import System.FilePath.Posix (takeDirectory)
import Text.Show.Pretty (ppShow)
justEvaluating justEvaluating
= runM = runM
@ -145,8 +143,4 @@ mergeExcs = either (\ (SomeExc sum) -> Left (SomeExc (weaken sum))) (either (\ (
reassociate :: Either (SomeExc exc1) (Either (SomeExc exc2) (Either (SomeExc exc3) (Either (SomeExc exc4) (Either (SomeExc exc5) (Either (SomeExc exc6) (Either (SomeExc exc7) result)))))) -> Either (SomeExc (Sum '[exc7, exc6, exc5, exc4, exc3, exc2, exc1])) result reassociate :: Either (SomeExc exc1) (Either (SomeExc exc2) (Either (SomeExc exc3) (Either (SomeExc exc4) (Either (SomeExc exc5) (Either (SomeExc exc6) (Either (SomeExc exc7) result)))))) -> Either (SomeExc (Sum '[exc7, exc6, exc5, exc4, exc3, exc2, exc1])) result
reassociate = mergeExcs . mergeExcs . mergeExcs . mergeExcs . mergeExcs . mergeExcs . mergeExcs . Right reassociate = mergeExcs . mergeExcs . mergeExcs . mergeExcs . mergeExcs . mergeExcs . mergeExcs . Right
prettyShow :: Show a => a -> IO ()
prettyShow = putStrLn . hscolour TTY defaultColourPrefs False False "" False . ppShow
{-# ANN module ("HLint: ignore Reduce duplication" :: String) #-} {-# ANN module ("HLint: ignore Reduce duplication" :: String) #-}

8
src/Semantic/Util/Pretty.hs Normal file
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@ -0,0 +1,8 @@
module Semantic.Util.Pretty (prettyShow) where
import Language.Haskell.HsColour
import Language.Haskell.HsColour.Colourise
import Text.Show.Pretty (ppShow)
prettyShow :: Show a => a -> IO ()
prettyShow = putStrLn . hscolour TTY defaultColourPrefs False False "" False . ppShow