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Minor tidying

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This commit is contained in:
John J. Camilleri
2021-02-17 00:15:44 +01:00
parent 768c3d9b2d
commit 236dbdbba3
1 changed files with 4 additions and 5 deletions
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9
src/compiler/GF/Compile/GrammarToLPGF.hs
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@@ -54,14 +54,13 @@ mkCanon2lpgf opts gr am = do
(lf, _) <- val2lin linValue
return (fi2i funId, lf)
where
-- Type information in return is only needed during projection, so we can be lazy about specifying it (hence the Nothings)
val2lin :: C.LinValue -> Either String (L.LinFun, Maybe C.LinType)
val2lin lv = case lv of
C.ConcatValue v1 v2 -> do
(v1',t1) <- val2lin v1
(v2',t2) <- val2lin v2
return (L.LFConcat v1' v2', t1 <|> t2) -- NOTE surely t1 == t2
return (L.LFConcat v1' v2', t1 <|> t2) -- t1 else t2
C.LiteralValue ll -> case ll of
C.FloatConstant f -> return (L.LFToken $ T.pack $ show f, Just C.FloatType)
@@ -82,8 +81,6 @@ mkCanon2lpgf opts gr am = do
-- when param value is dynamic
C.ParamConstant (C.Param pid pids) -> do
-- get param group index and defn for this constructor
-- let defs = [ (gix,d) | (gix,d@(C.ParamDef _ ps)) <- zip [0..] params, any (\(C.Param p _) -> p == pid) ps ] :: [(Int,C.ParamDef)]
-- (gix,def) <- if null defs then Left (printf "Cannot find param group: %s" (show pid)) else Right $ head defs
(gix,def) <- [ (gix,d) | (gix,d@(C.ParamDef _ ps)) <- zip [0..] params, any (\(C.Param p _) -> p == pid) ps ]
`headOrLeft` printf "Cannot find param group: %s" (show pid)
let (C.ParamDef tpid defpids) = def
@@ -119,9 +116,11 @@ mkCanon2lpgf opts gr am = do
return (L.LFTuple (map fst ts), Just lt)
C.TableValue lt trvs | isParamType lt -> do
ts <- sequence [ val2lin lv | C.TableRow _ lv <- trvs ] -- TODO variables in lhs ?
ts <- sequence [ val2lin lv | C.TableRow _ lv <- trvs ]
return (L.LFTuple (map fst ts), Just lt)
-- TODO TuplePattern, WildPattern?
C.TupleValue lvs -> do
ts <- mapM val2lin lvs
return (L.LFTuple (map fst ts), Just $ C.TupleType (map (fromJust.snd) ts))