{- |

Module : $Header$

Description : pretty printing signatures

Copyright : (c) Christian Maeder and Uni Bremen 2002-2003

Maintainer : Christian.Maeder@dfki.de

Stability : experimental

Portability : portable

pretty printing a HasCASL environment

-}

module HasCASL.PrintLe

( diffClass

, diffClassMap

, mergeClassInfo

, mergeMap

, improveDiag

, diffTypeMap

, diffType

, printMap1) where

import HasCASL.As

import HasCASL.PrintAs

import HasCASL.Le

import HasCASL.Builtin

import HasCASL.ClassAna

import Common.AS_Annotation

import Common.Doc

import Common.DocUtils

import Common.Id

import qualified Data.Map as Map

import qualified Data.Set as Set

import Common.Keywords

import Common.Result

import Control.Monad (foldM)

import Data.List

instance Pretty ClassInfo where

pretty (ClassInfo rk ks) =

if Set.null ks then less <+> pretty (rawToKind rk) else

less <+> printList0 (Set.toList ks)

printGenKind :: GenKind -> Doc

printGenKind k = case k of

Loose -> empty

Free -> text freeS

Generated -> text generatedS

instance Pretty TypeDefn where

pretty td = case td of

NoTypeDefn -> empty

PreDatatype -> text "%(data type)%"

AliasTypeDefn s -> text assignS <+> pretty s

DatatypeDefn dd -> text "%[" <> pretty dd <> text "]%"

printAltDefn :: AltDefn -> Doc

printAltDefn (Construct mi ts p sels) = case mi of

Just i -> pretty i <+> fsep (map (parens . semiDs) sels) <> pretty p

Nothing -> text (typeS ++ sS) <+> ppWithCommas ts

instance Pretty Selector where

pretty (Select mi t p) =

(case mi of

Just i -> pretty i <+> case p of

Partial -> text colonQuMark

Total -> colon

Nothing -> empty) <+> pretty t

instance Pretty TypeInfo where

pretty (TypeInfo _ _ _ def) = pretty def

instance Pretty TypeVarDefn where

pretty (TypeVarDefn v vk _ i) =

printVarKind v vk <+> text ("%(var_" ++ shows i ")%")

instance Pretty VarDefn where

pretty (VarDefn ty) =

colon <+> pretty ty

instance Pretty ConstrInfo where

pretty (ConstrInfo i t) =

pretty i <+> colon <+> pretty t

instance Pretty OpDefn where

pretty od = case od of

NoOpDefn b -> text $ "%(" ++ shows b ")%"

ConstructData _ -> text "%(constructor)%"

SelectData cs _ -> sep

[ text "%(selector of constructor(s)"

, printList0 (Set.toList cs) <> text ")%" ]

Definition b t ->

sep [text $ "%[" ++ shows b "=", pretty t <> text "]%" ]

instance Pretty OpInfo where

pretty o = sep [pretty $ opType o, pretty $ opDefn o]

instance Pretty DataEntry where

pretty (DataEntry im j k args _ talts) = let

i = Map.findWithDefault j j im

mapAlt (Construct mi tys p sels) = Construct mi

(map (mapType im) tys) p $ map (map mapSel) sels

mapSel (Select mi ty p) = Select mi (mapType im ty) p

alts = Set.map mapAlt talts

in printGenKind k <+> keyword typeS <+>

fsep [fcat $ pretty i : map (parens . pretty) args

, defn, cat $ punctuate (space <> bar <> space)

$ map printAltDefn $ Set.toList alts]

instance Pretty Sentence where

pretty s = case s of

Formula t -> (case t of

QuantifiedTerm Universal (_ : _) _ _ -> id

_ -> addBullet) $ pretty t

DatatypeSen ls -> vcat (map pretty ls)

ProgEqSen _ _ pe -> keyword programS <+> pretty pe

instance Pretty Env where

pretty Env

{ classMap = cm

, typeMap = tm

, localTypeVars = tvs

, assumps = ops

, binders = bs

, localVars = vs

, sentences = se

, envDiags = ds } = let

oops = foldr Map.delete ops $ map fst bList

ocm = diffClassMap cm cpoMap

otm = diffTypeMap ocm tm bTypes

ltm = concatMap ( \ (i, ti) -> map ( \ k -> (i, k))

$ Set.toList $ otherTypeKinds ti) $ Map.toList otm

stm = concatMap ( \ (i, ti) -> map ( \ s -> (i, s))

$ Set.toList $ superTypes ti) $ Map.toList otm

atm = Map.filter ( \ td -> case typeDefn td of

AliasTypeDefn _ -> True

_ -> False) otm

scm = concatMap ( \ (i, ci) -> map ( \ s -> (i, s))

$ Set.toList $ Set.delete (rawToKind $ rawKind ci) $ classKinds ci)

$ Map.toList ocm

bas = map (\ (b, o) -> Unparsed_anno (Annote_word "binder")

(Line_anno $ " " ++ show b ++ ", " ++ show o) $ posOfId b)

$ Map.toList bs

mkPlural s = if last s == 's' then s ++ "es" else s ++ "s"

header2 l s = keyword $ case l of

_ : _ : _ -> mkPlural s

_ -> s

header m s = keyword $

if Map.size m < 2 then s else mkPlural s

in noPrint (Map.null ocm) (header ocm classS)

$+$ printMap0 (Map.map ( \ ci -> ci { classKinds = Set.empty }) ocm)

$+$ noPrint (null scm) (header2 scm classS)

$+$ vcat (punctuate semi $ map ( \ (i, s) ->

pretty i <+> text lessS <+> pretty s) scm)

$+$ noPrint (null ltm) (header2 ltm typeS)

$+$ vcat (punctuate semi $ map ( \ (i, k) ->

pretty i <+> colon <+> pretty k) ltm)

$+$ noPrint (null stm) (header2 stm typeS)

$+$ vcat (punctuate semi $ map ( \ (i, s) ->

pretty i <+> text lessS <+> pretty s) stm)

$+$ noPrint (Map.null atm) (header atm typeS)

$+$ printMap0 atm

$+$ noPrint (Map.null tvs) (header tvs varS)

$+$ printMap0 tvs

$+$ vcat (map annoDoc bas)

$+$ printSetMap (keyword opS) space oops

$+$ noPrint (Map.null vs) (header vs varS)

$+$ printMap0 vs

$+$ vcat (map (pretty . fromLabelledSen) $ reverse se)

$+$ vcat (map pretty $ reverse ds)

printMap0 :: (Pretty a, Ord a, Pretty b) => Map.Map a b -> Doc

printMap0 = printMap id (vcat . punctuate semi) ( \ a b -> fsep $ a : [b])

printMap1 :: (Pretty a, Ord a, Pretty b) => Map.Map a b -> Doc

printMap1 = printMap id vcat ( \ a b -> fsep $ a : mapsto : [b])

instance Pretty Morphism where

pretty m =

let tm = typeIdMap m

cm = classIdMap m

fm = funMap m

-- the types in funs are already mapped

-- key und value types only differ wrt. partiality

ds = Map.foldWithKey ( \ (i, _) (j, t) l ->

(pretty i <+> mapsto <+>

pretty j <+> colon <+> pretty t) : l)

[] fm

in (if Map.null tm then empty

else keyword (typeS ++ sS) <+> printMap1 tm)

$+$ (if Map.null cm then empty

else keyword (classS ++ sS) <+> printMap1 cm)

$+$ (if Map.null fm then empty

else keyword (opS ++ sS) <+> sepByCommas ds)

$+$ colon <+> specBraces (pretty $ msource m)

$+$ mapsto

<+> specBraces (pretty $ mtarget m)

instance Pretty a => Pretty (SymbolType a) where

pretty t = case t of

OpAsItemType sc -> pretty sc

TypeAsItemType k -> pretty k

ClassAsItemType k -> pretty k

instance Pretty Symbol where

pretty s = keyword (case symType s of

OpAsItemType _ -> opS

TypeAsItemType _ -> typeS

ClassAsItemType _ -> classS)

<+> pretty (symName s) <+> colon <+> case symType s of

OpAsItemType sc -> pretty sc

TypeAsItemType k -> pretty $ rawToKind k

ClassAsItemType k -> pretty $ rawToKind k

instance Pretty RawSymbol where

pretty rs = case rs of

AnID i -> pretty i

AKindedId k i -> printSK k [i] <> pretty i

AQualId i t ->

printSK (symbTypeToKind t) [i] <> pretty i <+> colon <+> pretty t

ASymbol s -> pretty s

improveDiag :: (GetRange a, Pretty a) => a -> Diagnosis -> Diagnosis

improveDiag v d = d

{ diagString = let f:l = lines $ diagString d in

unlines $ (f ++ " of '" ++ showDoc v "'") : l

, diagPos = getRange v }

mergeMap :: (Ord a, GetRange a, Pretty a) => (b -> b -> Result b)

-> Map.Map a b -> Map.Map a b -> Result (Map.Map a b)

mergeMap f m1 m2 = foldM ( \ m (k, v) -> case Map.lookup k m of

Nothing -> return $ Map.insert k v m

Just w -> let

Result ds r = do

u <- f w v

return $ Map.insert k u m

in Result (map (improveDiag k) ds) r) m1 $ Map.toList m2

mergeClassInfo :: ClassInfo -> ClassInfo -> Result ClassInfo

mergeClassInfo c1 c2 = do

k <- minRawKind "class raw kind" (rawKind c1) $ rawKind c2

return $ ClassInfo k $ Set.union (classKinds c1) $ classKinds c2

diffClassMap :: ClassMap -> ClassMap -> ClassMap

diffClassMap c1 c2 =

let Result _ (Just ce) = mergeMap mergeClassInfo c1 c2

in Map.differenceWith (diffClass ce) c1 c2

-- | compute difference of class infos

diffClass :: ClassMap -> ClassInfo -> ClassInfo -> Maybe ClassInfo

diffClass cm (ClassInfo r1 k1) (ClassInfo _ k2) =

let ks = Set.filter (\ k -> Set.null $

Set.filter (flip (lesserKind cm) k) k2) k1

in if Set.null ks then Nothing else

Just $ ClassInfo r1 ks

diffTypeMap :: ClassMap -> TypeMap -> TypeMap -> TypeMap

diffTypeMap cm t1 t2 =

let t = Map.differenceWith (diffType cm) t1 t2

r = Set.intersection $ Set.union (Map.keysSet t) $ Map.keysSet bTypes

in Map.map ( \ ti -> ti { superTypes = r $ superTypes ti }) t

-- | compute difference of type infos

diffType :: ClassMap -> TypeInfo -> TypeInfo -> Maybe TypeInfo

diffType cm ti1 ti2 =

let k1 = otherTypeKinds ti1

k2 = otherTypeKinds ti2

ks = Set.filter (\ k -> Set.null $

Set.filter (flip (lesserKind cm) k) k2) k1

in if Set.null ks then Nothing else

Just $ ti1 { otherTypeKinds = ks

, superTypes = Set.difference (superTypes ti1) $

superTypes ti2 }