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Abstract PrettyDiff over a type parameter.

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This commit is contained in:
Rob Rix 2016-05-20 12:39:56 -04:00
parent a2952307f6
commit 018f289fb5
1 changed files with 8 additions and 7 deletions
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15
test/AlignmentSpec.hs
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@ -3,6 +3,7 @@ module AlignmentSpec where
import Alignment
import ArbitraryTerm ()
import Control.Arrow ((&&&))
import Control.Comonad.Cofree
import Control.Monad.Free
import Data.Align hiding (align)
@ -173,24 +174,24 @@ spec = parallel $ do
counts :: [Join These (Int, a)] -> Both Int
counts numbered = fromMaybe 0 . getLast . mconcat . fmap Last <$> Join (unalign (runJoin . fmap Prelude.fst <$> numbered))
align :: Both (Source.Source Char) -> ConstructibleFree (Patch (Term String Info)) (Both Info) -> PrettyDiff
align sources = PrettyDiff sources . alignDiff sources . deconstruct
align :: Both (Source.Source Char) -> ConstructibleFree (Patch (Term String Info)) (Both Info) -> PrettyDiff (SplitDiff String Info)
align sources = PrettyDiff sources . fmap (fmap (getRange &&& id)) . alignDiff sources . deconstruct
info :: Int -> Int -> Info
info = ((\ r -> Info r mempty 0) .) . Range
prettyDiff :: Both (Source.Source Char) -> [Join These (ConstructibleFree (SplitPatch (Term String Info)) Info)] -> PrettyDiff
prettyDiff sources = PrettyDiff sources . fmap (fmap deconstruct)
prettyDiff :: Both (Source.Source Char) -> [Join These (ConstructibleFree (SplitPatch (Term String Info)) Info)] -> PrettyDiff (SplitDiff String Info)
prettyDiff sources = PrettyDiff sources . fmap (fmap ((getRange &&& id) . deconstruct))
data PrettyDiff = PrettyDiff { unPrettySources :: Both (Source.Source Char), unPrettyLines :: [Join These (SplitDiff String Info)] }
data PrettyDiff a = PrettyDiff { unPrettySources :: Both (Source.Source Char), unPrettyLines :: [Join These (Range, a)] }
deriving Eq
instance Show PrettyDiff where
instance Show a => Show (PrettyDiff a) where
show (PrettyDiff sources lines) = prettyPrinted -- ++ "\n" ++ show lines
where prettyPrinted = showLine (maximum (0 : (maximum . fmap length <$> shownLines))) <$> shownLines >>= ('\n':)
shownLines = catMaybes $ toBoth <$> lines
showLine n line = uncurry ((++) . (++ " | ")) (fromThese (replicate n ' ') (replicate n ' ') (runJoin (pad n <$> line)))
showDiff diff = filter (/= '\n') . toList . Source.slice (getRange diff)
showDiff (range, _) = filter (/= '\n') . toList . Source.slice range
pad n string = showString (take n string) (replicate (max 0 (n - length string)) ' ')
toBoth them = showDiff <$> them `applyThese` modifyJoin (uncurry These) sources