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Define a ToJSONFields instance for SourceSpan.

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This commit is contained in:
Rob Rix 2017-04-27 18:51:41 -04:00
parent 70dd381f26
commit 862fb3654b
1 changed files with 3 additions and 0 deletions
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src/Renderer/JSON.hs
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@ -96,6 +96,9 @@ instance ToJSONFields Range where
instance ToJSONFields Category where
toJSONFields c = ["category" .= case c of { Other s -> s ; _ -> toS c }]
instance ToJSONFields SourceSpan where
toJSONFields SourceSpan{..} = [ "start" .= spanStart, "end" .= spanEnd ]
instance ToJSONFields a => ToJSONFields (Maybe a) where
toJSONFields = maybe [] toJSONFields