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🔥 parseDecorator.

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This commit is contained in:
Rob Rix 2017-04-27 16:21:06 -04:00
parent 9dac0260e3
commit f0b89c508c
1 changed files with 1 additions and 6 deletions
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7
src/Renderer/JSON.hs
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@ -224,17 +224,12 @@ jsonIndexParseTree = jsonParseTree' IndexFile combine
jsonParseTree' :: (ToJSON root, HasDefaultFields fields) => (FilePath -> a -> root) -> (ParseNode -> [a] -> a) -> Bool -> SourceBlob -> Term (Syntax Text) (Record fields) -> Value
jsonParseTree' constructor combine debug SourceBlob{..} term = toJSON $ constructor path (para algebra term')
where
term' = decorateTerm (parseDecorator debug source) term
term' = decorateTerm (if debug then termSourceTextDecorator source else const Nothing) term
algebra (annotation :< syntax) = combine (makeNode annotation (Prologue.fst <$> syntax)) (toList (Prologue.snd <$> syntax))
makeNode :: HasDefaultFields fields => Record (Maybe SourceText ': fields) -> Syntax Text (Term (Syntax Text) (Record (Maybe SourceText ': fields))) -> ParseNode
makeNode (sourceText :. record) syntax = ParseNode (getField record) (getField record) sourceText (getField record) (identifierFor syntax)
-- | Determines the term decorator to use when parsing.
parseDecorator :: (Functor f, HasField fields Range) => Bool -> (Source -> TermDecorator f fields (Maybe SourceText))
parseDecorator True = termSourceTextDecorator
parseDecorator False = const . const Nothing
-- | Returns a Just identifier text if the given Syntax term contains an identifier (leaf) syntax. Otherwise returns Nothing.
identifierFor :: (HasField fields (Maybe SourceText), HasField fields Category, StringConv leaf Text) => Syntax leaf (Term (Syntax leaf) (Record fields)) -> Maybe Text
identifierFor = fmap toS . extractLeafValue . unwrap <=< maybeIdentifier