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The root node must be mapped from the graph as well.

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Rob Rix 2022-02-07 10:48:15 -05:00
parent befb3e2366
commit bb73145e55
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GPG Key ID: 2BE643E01DC032AE
1 changed files with 7 additions and 4 deletions
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11
semantic-analysis/src/Analysis/Syntax.hs
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@ -150,13 +150,13 @@ parseGraph :: Syntax rep => A.Value -> A.Parser (IntMap.IntMap rep, Maybe rep)
parseGraph = A.withArray "nodes" $ \ nodes -> do
(untied, First root) <- foldMap (\ (k, v, r) -> ([(k, v)], First r)) <$> traverse (A.withObject "node" parseNode) (V.toList nodes)
let tied = fix (\ tied -> ($ tied) <$> IntMap.fromList untied)
pure (tied, root)
pure (tied, ($ tied) <$> root)
parseNode :: Syntax rep => A.Object -> A.Parser (IntMap.Key, IntMap.IntMap rep -> rep, Maybe rep)
parseNode :: Syntax rep => A.Object -> A.Parser (IntMap.Key, IntMap.IntMap rep -> rep, Maybe (IntMap.IntMap rep -> rep))
parseNode o = do
edges <- o A..: pack "edges"
index <- o A..: pack "id"
let parseType attrs = attrs A..: pack "type" >>= \case
let parseType attrs = \case
"string" -> const . string <$> attrs A..: pack "text"
"true" -> pure (const (bool True))
"false" -> pure (const (bool False))
@ -173,4 +173,7 @@ parseNode o = do
f attrs
pure (IntMap.! sink))
findEdgeNamed name = foldMap (resolveWith (\ attrs -> attrs A..: pack "type" >>= guard . (== name))) edges
o A..: pack "attrs" >>= A.withObject "attrs" (fmap (index,,Nothing) . parseType)
o A..: pack "attrs" >>= A.withObject "attrs" (\ attrs -> do
ty <- attrs A..: pack "type"
let node = parseType attrs ty
(index,,Nothing) <$> node)