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{-# LANGUAGE DeriveAnyClass, MultiParamTypeClasses, RankNTypes, TypeOperators #-}
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module Renderer.TOC
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( renderToCDiff
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, renderToCTerm
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, diffTOC
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, Summaries(..)
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, JSONSummary(..)
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, isValidSummary
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, Declaration(..)
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, declaration
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, declarationAlgebra
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, markupSectionAlgebra
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, syntaxDeclarationAlgebra
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, Entry(..)
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, tableOfContentsBy
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, dedupe
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, entrySummary
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) where
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2017-01-23 19:22:51 +03:00
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import Control.Comonad (extract)
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import Control.Comonad.Cofree (unwrap)
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import Control.DeepSeq
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import Control.Monad.Free (iter)
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import Data.Aeson
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import Data.Align (crosswalk)
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import Data.Bifunctor (bimap, first)
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import Data.Blob
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import Data.ByteString.Lazy (toStrict)
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import Data.Error as Error (formatError)
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import Data.Foldable (fold, foldl', toList)
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import Data.Functor.Both hiding (fst, snd)
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import qualified Data.Functor.Both as Both
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import Data.Functor.Foldable (cata)
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import Data.Functor.Listable
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import Data.Function (on)
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import Data.List.NonEmpty (nonEmpty)
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import Data.Maybe (fromMaybe, mapMaybe)
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import Data.Output
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import Data.Record
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import Data.Semigroup ((<>), sconcat)
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import Data.Source as Source
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import Data.Text (toLower)
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import qualified Data.Text as T
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import Data.Text.Listable
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import Data.These
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import Data.Union
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import Diff
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import GHC.Generics
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import Info
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import Language
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import Patch
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import qualified Data.List as List
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import qualified Data.Map as Map hiding (null)
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import Syntax as S
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import Data.Syntax.Algebra (RAlgebra)
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import qualified Data.Syntax as Syntax
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import qualified Data.Syntax.Declaration as Declaration
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import qualified Data.Syntax.Markup as Markup
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import Term
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data Summaries = Summaries { changes, errors :: !(Map.Map T.Text [Value]) }
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deriving (Eq, Show)
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instance Monoid Summaries where
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mempty = Summaries mempty mempty
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mappend (Summaries c1 e1) (Summaries c2 e2) = Summaries (Map.unionWith (<>) c1 c2) (Map.unionWith (<>) e1 e2)
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instance Output Summaries where
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toOutput = toStrict . (<> "\n") . encode
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instance ToJSON Summaries where
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toJSON Summaries{..} = object [ "changes" .= changes, "errors" .= errors ]
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2017-06-05 18:28:30 +03:00
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data JSONSummary
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= JSONSummary
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{ summaryCategoryName :: T.Text
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, summaryTermName :: T.Text
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, summarySpan :: Span
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, summaryChangeType :: T.Text
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}
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| ErrorSummary { error :: T.Text, errorSpan :: Span, errorLanguage :: Maybe Language }
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deriving (Generic, Eq, Show)
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instance ToJSON JSONSummary where
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toJSON JSONSummary{..} = object [ "changeType" .= summaryChangeType, "category" .= summaryCategoryName, "term" .= summaryTermName, "span" .= summarySpan ]
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toJSON ErrorSummary{..} = object [ "error" .= error, "span" .= errorSpan, "language" .= errorLanguage ]
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2017-05-10 22:55:10 +03:00
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isValidSummary :: JSONSummary -> Bool
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isValidSummary ErrorSummary{} = False
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isValidSummary _ = True
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-- | A declaration’s identifier and type.
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data Declaration
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= MethodDeclaration { declarationIdentifier :: T.Text }
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| FunctionDeclaration { declarationIdentifier :: T.Text }
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| SectionDeclaration { declarationIdentifier :: T.Text, declarationLevel :: Int }
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| ErrorDeclaration { declarationIdentifier :: T.Text, declarationLanguage :: Maybe Language }
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deriving (Eq, Generic, NFData, Show)
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2017-06-05 18:53:49 +03:00
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getDeclaration :: HasField fields (Maybe Declaration) => Record fields -> Maybe Declaration
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getDeclaration = getField
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-- | Produce the annotations of nodes representing declarations.
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declaration :: HasField fields (Maybe Declaration) => TermF f (Record fields) a -> Maybe (Record fields)
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declaration (annotation :< _) = annotation <$ (getField annotation :: Maybe Declaration)
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-- | Compute 'Declaration's for methods and functions in 'Syntax'.
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syntaxDeclarationAlgebra :: HasField fields Range => Blob -> RAlgebra (SyntaxTermF fields) (SyntaxTerm fields) (Maybe Declaration)
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syntaxDeclarationAlgebra Blob{..} (a :< r) = case r of
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S.Function (identifier, _) _ _ -> Just $ FunctionDeclaration (getSource identifier)
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S.Method _ (identifier, _) Nothing _ _ -> Just $ MethodDeclaration (getSource identifier)
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S.Method _ (identifier, _) (Just (receiver, _)) _ _
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| S.Indexed [receiverParams] <- unwrap receiver
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, S.ParameterDecl (Just ty) _ <- unwrap receiverParams -> Just $ MethodDeclaration ("(" <> getSource ty <> ") " <> getSource identifier)
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| otherwise -> Just $ MethodDeclaration (getSource receiver <> "." <> getSource identifier)
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S.ParseError{} -> Just $ ErrorDeclaration (toText (Source.slice (byteRange a) blobSource)) blobLanguage
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_ -> Nothing
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where getSource = toText . flip Source.slice blobSource . byteRange . extract
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2017-06-05 17:59:22 +03:00
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-- | Compute 'Declaration's for methods and functions.
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declarationAlgebra :: (Declaration.Function :< fs, Declaration.Method :< fs, Syntax.Error :< fs, Apply1 Functor fs, HasField fields Range, HasField fields Span)
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=> Blob
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-> RAlgebra (TermF (Union fs) (Record fields)) (Term (Union fs) (Record fields)) (Maybe Declaration)
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2017-08-06 19:23:20 +03:00
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declarationAlgebra blob@Blob{..} (a :< r)
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| Just (Declaration.Function (identifier, _) _ _) <- prj r = Just $ FunctionDeclaration (getSource (extract identifier))
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| Just (Declaration.Method _ (identifier, _) _ _) <- prj r = Just $ MethodDeclaration (getSource (extract identifier))
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2017-08-06 22:22:25 +03:00
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| Just err@Syntax.Error{} <- prj r = Just $ ErrorDeclaration (T.pack (formatError False False blob (Syntax.unError (sourceSpan a) err))) blobLanguage
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2017-06-05 17:59:22 +03:00
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| otherwise = Nothing
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2017-07-20 00:16:51 +03:00
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where getSource = toText . flip Source.slice blobSource . byteRange
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2017-06-05 17:59:22 +03:00
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2017-06-08 19:42:39 +03:00
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-- | Compute 'Declaration's with the headings of 'Markup.Section's.
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2017-08-06 19:15:35 +03:00
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markupSectionAlgebra :: (Markup.Section :< fs, Syntax.Error :< fs, HasField fields Range, HasField fields Span, Apply1 Functor fs, Apply1 Foldable fs)
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=> Blob
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-> RAlgebra (TermF (Union fs) (Record fields)) (Term (Union fs) (Record fields)) (Maybe Declaration)
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2017-08-06 19:23:20 +03:00
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markupSectionAlgebra blob@Blob{..} (a :< r)
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2017-07-28 21:37:02 +03:00
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| Just (Markup.Section level (heading, _) _) <- prj r = Just $ SectionDeclaration (maybe (getSource (extract heading)) (firstLine . toText . flip Source.slice blobSource . sconcat) (nonEmpty (byteRange . extract <$> toList (unwrap heading)))) level
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2017-08-06 22:22:25 +03:00
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| Just err@Syntax.Error{} <- prj r = Just $ ErrorDeclaration (T.pack (formatError False False blob (Syntax.unError (sourceSpan a) err))) blobLanguage
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2017-06-08 19:42:39 +03:00
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| otherwise = Nothing
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2017-07-20 00:16:51 +03:00
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where getSource = firstLine . toText . flip Source.slice blobSource . byteRange
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2017-07-11 19:37:24 +03:00
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firstLine = T.takeWhile (/= '\n')
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2017-06-08 19:42:39 +03:00
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2017-05-10 19:09:43 +03:00
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2017-05-10 17:24:43 +03:00
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-- | An entry in a table of contents.
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2017-05-10 16:55:05 +03:00
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data Entry a
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2017-05-12 00:32:43 +03:00
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= Unchanged { entryPayload :: a } -- ^ An entry for an unchanged portion of a diff (i.e. a diff node not containing any patches).
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| Changed { entryPayload :: a } -- ^ An entry for a node containing changes.
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| Inserted { entryPayload :: a } -- ^ An entry for a change occurring inside an 'Insert' 'Patch'.
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| Deleted { entryPayload :: a } -- ^ An entry for a change occurring inside a 'Delete' 'Patch'.
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| Replaced { entryPayload :: a } -- ^ An entry for a change occurring on the insertion side of a 'Replace' 'Patch'.
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2017-05-10 16:55:05 +03:00
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deriving (Eq, Show)
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2017-05-11 22:36:02 +03:00
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2017-05-10 17:21:00 +03:00
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-- | Compute a table of contents for a diff characterized by a function mapping relevant nodes onto values in Maybe.
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2017-05-10 17:20:51 +03:00
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tableOfContentsBy :: Traversable f
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=> (forall b. TermF f annotation b -> Maybe a) -- ^ A function mapping relevant nodes onto values in Maybe.
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-> Diff f annotation -- ^ The diff to compute the table of contents for.
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-> [Entry a] -- ^ A list of entries for relevant changed and unchanged nodes in the diff.
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2017-06-16 19:57:23 +03:00
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tableOfContentsBy selector = fromMaybe [] . iter diffAlgebra . fmap (Just . fmap patchEntry . crosswalk (termTableOfContentsBy selector))
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2017-05-10 21:28:10 +03:00
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where diffAlgebra r = case (selector (first Both.snd r), fold r) of
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(Just a, Nothing) -> Just [Unchanged a]
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(Just a, Just []) -> Just [Changed a]
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2017-05-10 21:29:28 +03:00
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(_ , entries) -> entries
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2017-05-12 00:08:21 +03:00
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patchEntry = these Deleted Inserted (const Replaced) . unPatch
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2017-05-10 16:55:05 +03:00
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2017-06-16 19:21:40 +03:00
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termTableOfContentsBy :: Traversable f
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=> (forall b. TermF f annotation b -> Maybe a)
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-> Term f annotation
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2017-06-16 19:25:20 +03:00
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-> [a]
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2017-06-16 19:21:40 +03:00
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termTableOfContentsBy selector = cata termAlgebra
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2017-06-16 19:25:20 +03:00
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where termAlgebra r | Just a <- selector r = [a]
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2017-06-16 19:21:40 +03:00
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| otherwise = fold r
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2017-06-06 00:02:50 +03:00
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dedupe :: HasField fields (Maybe Declaration) => [Entry (Record fields)] -> [Entry (Record fields)]
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2017-05-11 22:36:25 +03:00
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dedupe = foldl' go []
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where go xs x | (_, _:_) <- find (exactMatch `on` entryPayload) x xs = xs
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2017-05-11 23:05:56 +03:00
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| (front, similar : back) <- find (similarMatch `on` entryPayload) x xs =
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2017-05-11 23:41:17 +03:00
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front <> (Replaced (entryPayload similar) : back)
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2017-05-11 22:36:25 +03:00
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| otherwise = xs <> [x]
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find p x = List.break (p x)
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exactMatch = (==) `on` getDeclaration
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similarMatch a b = sameCategory a b && similarDeclaration a b
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2017-06-05 23:59:36 +03:00
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sameCategory = (==) `on` fmap toCategoryName . getDeclaration
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2017-05-11 22:36:25 +03:00
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similarDeclaration = (==) `on` fmap (toLower . declarationIdentifier) . getDeclaration
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2017-05-11 22:25:12 +03:00
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2017-05-10 20:18:47 +03:00
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-- | Construct a 'JSONSummary' from an 'Entry'. Returns 'Nothing' for 'Unchanged' patches.
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2017-07-20 00:17:39 +03:00
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entrySummary :: (HasField fields (Maybe Declaration), HasField fields Span) => Entry (Record fields) -> Maybe JSONSummary
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entrySummary entry = case entry of
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2017-05-10 20:18:47 +03:00
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Unchanged _ -> Nothing
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2017-07-20 00:17:39 +03:00
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Changed a -> recordSummary a "modified"
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Deleted a -> recordSummary a "removed"
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Inserted a -> recordSummary a "added"
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Replaced a -> recordSummary a "modified"
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2017-06-16 20:00:46 +03:00
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-- | Construct a 'JSONSummary' from a node annotation and a change type label.
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2017-07-28 21:37:02 +03:00
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recordSummary :: (HasField fields (Maybe Declaration), HasField fields Span) => Record fields -> T.Text -> Maybe JSONSummary
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2017-07-20 00:17:39 +03:00
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recordSummary record = case getDeclaration record of
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Just (ErrorDeclaration text language) -> Just . const (ErrorSummary text (sourceSpan record) language)
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2017-07-19 02:49:39 +03:00
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Just declaration -> Just . JSONSummary (toCategoryName declaration) (declarationIdentifier declaration) (sourceSpan record)
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2017-06-16 20:00:46 +03:00
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Nothing -> const Nothing
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2017-05-10 20:18:47 +03:00
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2017-06-24 17:15:31 +03:00
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renderToCDiff :: (HasField fields (Maybe Declaration), HasField fields Span, Traversable f) => Both Blob -> Diff f (Record fields) -> Summaries
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2017-07-20 00:17:39 +03:00
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renderToCDiff blobs = uncurry Summaries . bimap toMap toMap . List.partition isValidSummary . diffTOC
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2017-07-19 03:18:09 +03:00
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where toMap [] = mempty
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2017-05-10 21:00:58 +03:00
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toMap as = Map.singleton summaryKey (toJSON <$> as)
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2017-07-28 21:37:02 +03:00
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summaryKey = T.pack $ case runJoin (blobPath <$> blobs) of
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2017-05-10 21:00:58 +03:00
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(before, after) | null before -> after
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| null after -> before
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| before == after -> after
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| otherwise -> before <> " -> " <> after
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2017-03-31 23:48:06 +03:00
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2017-06-24 17:15:31 +03:00
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renderToCTerm :: (HasField fields (Maybe Declaration), HasField fields Span, Traversable f) => Blob -> Term f (Record fields) -> Summaries
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2017-07-20 00:17:39 +03:00
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renderToCTerm Blob{..} = uncurry Summaries . bimap toMap toMap . List.partition isValidSummary . termToC
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2017-07-19 03:18:09 +03:00
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where toMap [] = mempty
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2017-07-28 21:37:02 +03:00
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toMap as = Map.singleton (T.pack blobPath) (toJSON <$> as)
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2017-06-16 19:26:14 +03:00
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2017-07-20 00:17:39 +03:00
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diffTOC :: (HasField fields (Maybe Declaration), HasField fields Span, Traversable f) => Diff f (Record fields) -> [JSONSummary]
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diffTOC = mapMaybe entrySummary . dedupe . tableOfContentsBy declaration
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2017-01-23 22:12:05 +03:00
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2017-07-20 00:17:39 +03:00
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termToC :: (HasField fields (Maybe Declaration), HasField fields Span, Traversable f) => Term f (Record fields) -> [JSONSummary]
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termToC = mapMaybe (flip recordSummary "unchanged") . termTableOfContentsBy declaration
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2017-06-16 19:26:14 +03:00
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2017-02-18 01:57:29 +03:00
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-- The user-facing category name
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2017-07-28 21:37:02 +03:00
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toCategoryName :: Declaration -> T.Text
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2017-06-05 23:56:45 +03:00
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toCategoryName declaration = case declaration of
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FunctionDeclaration _ -> "Function"
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MethodDeclaration _ -> "Method"
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2017-07-28 21:37:02 +03:00
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SectionDeclaration _ l -> "Heading " <> T.pack (show l)
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2017-07-20 00:17:39 +03:00
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ErrorDeclaration{} -> "ParseError"
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2017-05-11 22:48:27 +03:00
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instance Listable Declaration where
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tiers
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= cons1 (MethodDeclaration . unListableText)
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\/ cons1 (FunctionDeclaration . unListableText)
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2017-07-20 00:17:39 +03:00
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\/ cons1 (flip ErrorDeclaration Nothing . unListableText)
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