module Language.ATS.PrettyPrint ( printATS
, printATSCustom
, printATSFast
) where
import Control.Composition hiding ((&))
import Control.DeepSeq (NFData)
import Control.Lens hiding (op, pre)
import Data.Functor.Foldable (cata)
import GHC.Generics (Generic)
import Language.ATS.Types
import Prelude hiding ((<$>))
import System.Console.ANSI.Types
import Text.PrettyPrint.ANSI.Leijen hiding (bool)
import Text.PrettyPrint.ANSI.Leijen.Internal hiding (bool)
infixr 5 $$
deriving instance Generic Underlining
deriving instance NFData Underlining
deriving instance Generic ConsoleIntensity
deriving instance NFData ConsoleIntensity
deriving instance Generic Color
deriving instance NFData Color
deriving instance Generic ColorIntensity
deriving instance NFData ColorIntensity
deriving instance Generic ConsoleLayer
deriving instance NFData ConsoleLayer
deriving instance Generic Doc
deriving instance NFData Doc
instance Eq Doc where
(==) = on (==) show
printATS :: ATS -> String
printATS = (<> "\n") . printATSCustom 0.6 120
printATSCustom :: Float
-> Int
-> ATS -> String
printATSCustom r i (ATS x) = g mempty
where g = (displayS . renderSmart r i . pretty) (ATS $ reverse x)
printATSFast :: ATS -> String
printATSFast (ATS x) = g mempty
where g = (displayS . renderCompact . (<> "\n") . pretty) (ATS $ reverse x)
instance Pretty Name where
pretty (Unqualified n) = text n
pretty (Qualified _ i n) = "$" <> text n <> "." <> text i
pretty (SpecialName _ s) = "$" <> text s
pretty (Functorial s s') = text s <> "$" <> text s'
pretty (FieldName _ n n') = text n <> "." <> text n'
pretty Unnamed{} = mempty
instance Pretty LambdaType where
pretty Plain{} = "=>"
pretty Spear{} = "=>>"
pretty (Full _ v) = "=<" <> text v <> ">"
instance Pretty BinOp where
pretty Mult = "*"
pretty Add = "+"
pretty Div = "/"
pretty Sub = "-"
pretty GreaterThan = ">"
pretty LessThan = "<"
pretty Equal = "="
pretty NotEqual = "!="
pretty LogicalAnd = "&&"
pretty LogicalOr = "||"
pretty LessThanEq = "<="
pretty GreaterThanEq = ">="
pretty StaticEq = "=="
pretty Mod = "%"
splits :: BinOp -> Bool
splits Mult = True
splits Add = True
splits Div = True
splits Sub = True
splits LogicalAnd = True
splits LogicalOr = True
splits _ = False
startsParens :: Doc -> Bool
startsParens d = f (show d) where
f ('(':_) = True
f _ = False
prettySmall :: Doc -> [Doc] -> Doc
prettySmall op es = mconcat (punctuate (" " <> op <> " ") es)
prettyBinary :: Doc -> [Doc] -> Doc
prettyBinary op es
| length (showFast $ mconcat es) < 80 = prettySmall op es
| otherwise = prettyLarge op es
prettyLarge :: Doc -> [Doc] -> Doc
prettyLarge _ [] = mempty
prettyLarge op (e:es) = e <$> vsep (fmap (op <+>) es)
lengthAlt :: Doc -> Doc -> Doc
lengthAlt d1 d2
| length (showFast d2) >= 30 = d1 <$> indent 4 d2
| otherwise = d1 <+> d2
instance Pretty Expression where
pretty = cata a . rewriteATS where
a (IfF e e' (Just e'')) = "if" <+> e <+> "then" <$> indent 2 e' <$> "else" <$> indent 2 e''
a (IfF e e' Nothing) = "if" <+> e <+> "then" <$> indent 2 e'
a (LetF _ e (Just e')) = flatAlt
("let" <$> indent 2 (pretty ((\(ATS x) -> ATS $ reverse x) e)) <$> "in" <$> indent 2 e' <$> "end")
("let" <+> pretty ((\(ATS x) -> ATS $ reverse x) e) <$> "in" <+> e' <$> "end")
a (LetF _ e Nothing) = flatAlt
("let" <$> indent 2 (pretty ((\(ATS x) -> ATS $ reverse x) e)) <$> "in end")
("let" <+> pretty ((\(ATS x) -> ATS $ reverse x) e) <$> "in end")
a (BoolLitF True) = "true"
a (BoolLitF False) = "false"
a (TimeLitF s) = text s
a (IntLitF i) = pretty i
a (LambdaF _ lt p e) = let pre = "lam" <+> pretty p <+> pretty lt in flatAlt (lengthAlt pre e) (pre <+> e)
a (LinearLambdaF _ lt p e) = let pre = "llam" <+> pretty p <+> pretty lt in flatAlt (lengthAlt pre e) (pre <+> e)
a (FloatLitF f) = pretty f
a (StringLitF s) = text s
a (ParenExprF _ e) = parens e
a (BinListF op@Add es) = prettyBinary (pretty op) es
a (BinaryF op e e')
| splits op = e </> pretty op <+> e'
| otherwise = e <+> pretty op <+> e'
a (IndexF _ n e) = pretty n <> "[" <> e <> "]"
a (UnaryF Negate e) = "~" <> e
a (NamedValF nam) = pretty nam
a (CallF nam [] [] Nothing []) = pretty nam <> "()"
a (CallF nam [] [] (Just e) xs) = pretty nam <> prettyArgsG ("(" <> pretty e <+> "| ") ")" xs
a (CallF nam [] [] Nothing xs) = pretty nam <> prettyArgs xs
a (CallF nam [] us Nothing []) = pretty nam <> prettyArgsU "{" "}" us
a (CallF nam [] us Nothing xs) = pretty nam <> prettyArgsU "{" "}" us <> prettyArgsG "(" ")" xs
a (CallF nam is [] Nothing []) = pretty nam <> prettyArgsU "<" ">" is
a (CallF nam is [] Nothing [x])
| startsParens x = pretty nam <> prettyArgsU "<" ">" is <> pretty x
a (CallF nam is [] Nothing xs) = pretty nam <> prettyArgsU "<" ">" is <> prettyArgs xs
a (CaseF _ add e cs) = "case" <> pretty add <+> e <+> "of" <$> indent 2 (prettyCases cs)
a (VoidLiteralF _) = "()"
a (RecordValueF _ es Nothing) = prettyRecord es
a (RecordValueF _ es (Just x)) = prettyRecord es <+> ":" <+> pretty x
a (PrecedeF e e') = parens (e <+> ";" </> e')
a (PrecedeListF es) = lineAlt (prettyArgsList "; " "(" ")" es) ("(" <> mconcat (punctuate " ; " es) <> ")")
a (FieldMutateF _ o f v) = pretty o <> "->" <> string f <+> ":=" <+> v
a (MutateF e e') = e <+> ":=" <+> e'
a (DerefF _ e) = "!" <> e
a (AccessF _ e n)
| noParens e = e <> "." <> pretty n
| otherwise = parens e <> "." <> pretty n
a (CharLitF '\\') = "'\\\\'"
a (CharLitF '\n') = "'\\n'"
a (CharLitF '\t') = "'\\t'"
a (CharLitF c) = "'" <> char c <> "'"
a (ProofExprF _ e e') = "(" <> e <+> "|" <+> e' <> ")"
a (TypeSignatureF e t) = e <+> ":" <+> pretty t
a (WhereExpF e d) = e <+> "where" <$> braces (" " <> nest 2 (pretty (ATS $ reverse d)) <> " ")
a (TupleExF _ es) = parens (mconcat $ punctuate ", " (reverse es))
a (WhileF _ e e') = "while" <> parens e <> e'
a (ActionsF as) = "{" <$> indent 2 (pretty ((\(ATS x) -> ATS $ reverse x) as)) <$> "}"
a UnderscoreLitF{} = "_"
a (AtExprF e e') = e <> "@" <> e'
a (BeginF _ e)
| not (startsParens e) = linebreak <> indent 2 ("begin" <$> indent 2 e <$> "end")
| otherwise = e
a (FixAtF n (StackF s as t e)) = "fix@" <+> text n <+> prettyArgs as <+> ":" <> pretty s <+> pretty t <+> "=>" <$> indent 2 (pretty e)
a (LambdaAtF (StackF s as t e)) = "lam@" <+> prettyArgs as <+> ":" <> pretty s <+> pretty t <+> "=>" <$> indent 2 (pretty e)
a (AddrAtF _ e) = "addr@" <> e
a (ViewAtF _ e) = "view@" <> e
a (ListLiteralF _ s t es) = "list" <> string s <> "{" <> pretty t <> "}" <> prettyArgs es
a BinListF{} = undefined
a CallF{} = undefined
prettyCases [] = mempty
prettyCases [(s, l, t)] = "|" <+> pretty s <+> pretty l <+> t
prettyCases ((s, l, t): xs) = prettyCases xs $$ "|" <+> pretty s <+> pretty l <+> t
noParens :: Doc -> Bool
noParens = all (`notElem` ("()" :: String)) . show
patternHelper :: [Doc] -> Doc
patternHelper ps = mconcat (punctuate ", " (reverse ps))
instance Pretty Pattern where
pretty = cata a where
a (WildcardF _) = "_"
a (PSumF s x) = string s <+> x
a (PLiteralF e) = pretty e
a (PNameF s []) = string s
a (PNameF s [x]) = string s <> parens x
a (PNameF s ps) = string s <> parens (patternHelper ps)
a (FreeF p) = "~" <> p
a (GuardedF _ e p) = p <+> "when" <+> pretty e
a (ProofF _ p p') = parens (patternHelper p <+> "|" <+> patternHelper p')
a (TuplePatternF ps) = parens (patternHelper ps)
a (AtPatternF _ p) = "@" <> p
a (UniversalPatternF _ n us p) = text n <> prettyArgsU "" "" us <> p
a (ExistentialPatternF e p) = pretty e <> p
singleArg :: Arg -> Doc
singleArg x@Arg{} = argHelper (<>) x
singleArg x = pretty x
argHelper :: (Doc -> Doc -> Doc) -> Arg -> Doc
argHelper _ (Arg (First s)) = pretty s
argHelper _ (Arg (Second t)) = pretty t
argHelper op (Arg (Both s t)) = pretty s `op` colon `op` pretty t
argHelper op (PrfArg a a') = pretty a `op` "|" `op` pretty a'
argHelper _ NoArgs = undefined
instance Pretty Arg where
pretty = argHelper (<+>)
squish :: BinOp -> Bool
squish Add = True
squish Sub = True
squish Mult = True
squish _ = False
instance Pretty StaticExpression where
pretty = cata a where
a (StaticValF n) = pretty n
a (StaticBinaryF op se se')
| squish op = se <> pretty op <> se'
| otherwise = se <+> pretty op <+> se'
a (StaticIntF i) = pretty i
a StaticVoidF{} = "()"
a (SifF e e' e'') = "sif" <+> e <+> "then" <$> indent 2 e' <$> "else" <$> indent 2 e''
a (StaticBoolF True) = "true"
a (StaticBoolF False) = "false"
a (SCallF n cs) = pretty n <> parens (mconcat (punctuate "," . reverse . fmap pretty $ cs))
a (SPrecedeF e e') = e <> ";" <+> e'
instance Pretty Type where
pretty = cata a where
a IntF = "int"
a StringF = "string"
a BoolF = "bool"
a VoidF = "void"
a NatF = "nat"
a AddrF = "addr"
a CharF = "char"
a (NamedF n) = pretty n
a (ExF e t) = pretty e <+> t
a (DependentIntF e) = "int(" <> pretty e <> ")"
a (DependentBoolF e) = "bool(" <> pretty e <> ")"
a (DepStringF e) = "string(" <> pretty e <> ")"
a (DependentF n ts) = pretty n <> parens (mconcat (punctuate ", " (fmap pretty (reverse ts))))
a DoubleF = "double"
a FloatF = "float"
a (ForAF u t) = pretty u <+> t
a (UnconsumedF t) = "!" <> t
a (AsProofF t (Just t')) = t <+> ">>" <+> t'
a (AsProofF t Nothing) = t <+> ">> _"
a (FromVTF t) = t <> "?!"
a (MaybeValF t) = t <> "?"
a (T0pF ad) = "t@ype" <> pretty ad
a (Vt0pF ad) = "vt@ype" <> pretty ad
a (AtF _ (Just t) t') = t <+> "@" <+> t'
a (AtF _ Nothing t) = "@" <> t
a (ProofTypeF _ t t') = parens (t <+> "|" <+> t')
a (ConcreteTypeF e) = pretty e
a (TupleF _ ts) = parens (mconcat (punctuate ", " (fmap pretty (reverse ts))))
a (RefTypeF t) = "&" <> t
a (ViewTypeF _ t) = "view@" <> parens t
a (FunctionTypeF s t t') = t <+> string s <+> t'
a (ViewLiteralF c) = "view" <> pretty c
a NoneTypeF{} = "()"
a ImplicitTypeF{} = ".."
a (AnonymousRecordF _ rs) = prettyRecord rs
gan :: Maybe Type -> Doc
gan (Just t) = " : " <> pretty t <> " "
gan Nothing = ""
withHashtag :: Bool -> Doc
withHashtag True = "#["
withHashtag _ = lbracket
instance Pretty Existential where
pretty (Existential [] b Nothing (Just e)) = withHashtag b <+> pretty e <+> rbracket
pretty (Existential [x@Arg{}] b Nothing Nothing) = withHashtag b <> singleArg x <> rbracket
pretty (Existential bs b ty Nothing) = withHashtag b <+> mconcat (punctuate ", " (fmap pretty (reverse bs))) <> gan ty <+> rbracket
pretty (Existential bs b ty (Just e)) = withHashtag b <+> mconcat (punctuate ", " (fmap go (reverse bs))) <> gan ty <+> "|" <+> pretty e <+> rbracket
where go (Arg (First s)) = pretty s
go (Arg (Both s t)) = pretty s <+> colon <+> pretty t
go (Arg (Second t)) = pretty t
go _ = undefined
instance Pretty Universal where
pretty (Universal [x@PrfArg{}] Nothing Nothing) = lbrace <+> pretty x <+> rbrace
pretty (Universal [x] Nothing Nothing) = lbrace <> singleArg x <> rbrace
pretty (Universal bs ty Nothing) = lbrace <+> mconcat (punctuate ", " (fmap pretty (reverse bs))) <> gan ty <+> rbrace
pretty (Universal bs ty (Just e)) = lbrace <+> mconcat (punctuate ", " (fmap go (reverse bs))) <> gan ty <+> "|" <+> pretty e <+> rbrace
where go (Arg (First s)) = pretty s
go (Arg (Both s t)) = pretty s <+> colon <+> pretty t
go (Arg (Second t)) = pretty t
go _ = undefined
instance Pretty ATS where
pretty (ATS xs) = concatSame (fmap rewriteDecl xs)
instance Pretty Implementation where
pretty (Implement _ [] [] n [] e) = "implement" <+> pretty n <+> "() =" <$> indent 2 (pretty e)
pretty (Implement _ [] [] n ias e) = "implement" <+> pretty n <+> prettyArgs ias <+> "=" <$> indent 2 (pretty e)
pretty (Implement _ [] us n ias e) = "implement" <+> pretty n <+> foldMap pretty us </> prettyArgs ias <+> "=" <$> indent 2 (pretty e)
pretty (Implement _ ps [] n ias e) = "implement" <+> foldMap pretty ps </> pretty n <+> prettyArgs ias <+> "=" <$> indent 2 (pretty e)
pretty (Implement _ ps us n ias e) = "implement" <+> foldMap pretty ps </> pretty n </> foldMap pretty us <+> prettyArgs ias <+> "=" <$> indent 2 (pretty e)
isVal :: Declaration -> Bool
isVal Val{} = True
isVal Var{} = True
isVal PrVal{} = True
isVal _ = False
glue :: Declaration -> Declaration -> Bool
glue x y
| isVal x && isVal y = True
glue Staload{} Staload{} = True
glue Include{} Include{} = True
glue ViewTypeDef{} ViewTypeDef{} = True
glue TypeDef{} TypeDef{} = True
glue Comment{} _ = True
glue (Func _ Fnx{}) (Func _ And{}) = True
glue _ _ = False
concatSame :: [Declaration] -> Doc
concatSame [] = mempty
concatSame [x] = pretty x
concatSame (x:x':xs)
| glue x x' = pretty x <$> concatSame (x':xs)
| otherwise = pretty x <> line <$> concatSame (x':xs)
($$) :: Doc -> Doc -> Doc
x $$ y = align (x <$> y)
lineAlt :: Doc -> Doc -> Doc
lineAlt = group .* flatAlt
showFast :: Doc -> String
showFast d = displayS (renderCompact d) mempty
prettyRecord :: (Pretty a) => [(String, a)] -> Doc
prettyRecord es
| any ((>40) . length . showFast . pretty) es = prettyRecordF True es
| otherwise = lineAlt (prettyRecordF True es) (prettyRecordS True es)
prettyRecordS :: (Pretty a) => Bool -> [(String, a)] -> Doc
prettyRecordS _ [] = mempty
prettyRecordS True [(s, t)] = "@{" <+> text s <+> "=" <+> pretty t <+> "}"
prettyRecordS _ [(s, t)] = "@{" <+> text s <+> "=" <+> pretty t
prettyRecordS True ((s, t):xs) = prettyRecordS False xs <> "," <+> text s <+> ("=" <+> pretty t) <+> "}"
prettyRecordS x ((s, t):xs) = prettyRecordS x xs <> "," <+> text s <+> ("=" <+> pretty t)
prettyRecordF :: (Pretty a) => Bool -> [(String, a)] -> Doc
prettyRecordF _ [] = mempty
prettyRecordF True [(s, t)] = "@{" <+> text s <+> align ("=" <+> pretty t) <+> "}"
prettyRecordF _ [(s, t)] = "@{" <+> text s <+> align ("=" <+> pretty t)
prettyRecordF True ((s, t):xs) = prettyRecordF False xs $$ indent 1 ("," <+> text s <+> align ("=" <+> pretty t) <$> "}")
prettyRecordF x ((s, t):xs) = prettyRecordF x xs $$ indent 1 ("," <+> text s <+> align ("=" <+> pretty t))
prettyDL :: [DataPropLeaf] -> Doc
prettyDL [] = mempty
prettyDL [DataPropLeaf [] e Nothing] = indent 2 ("|" <+> pretty e)
prettyDL [DataPropLeaf [] e (Just e')] = indent 2 ("|" <+> pretty e <+> "of" <+> pretty e')
prettyDL (DataPropLeaf [] e Nothing:xs) = prettyDL xs $$ indent 2 ("|" <+> pretty e)
prettyDL (DataPropLeaf [] e (Just e'):xs) = prettyDL xs $$ indent 2 ("|" <+> pretty e <+> "of" <+> pretty e')
prettyDL [DataPropLeaf us e Nothing] = indent 2 ("|" <+> foldMap pretty us <+> pretty e)
prettyDL [DataPropLeaf us e (Just e')] = indent 2 ("|" <+> foldMap pretty us <+> pretty e <+> "of" <+> pretty e')
prettyDL (DataPropLeaf us e Nothing:xs) = prettyDL xs $$ indent 2 ("|" <+> foldMap pretty us <+> pretty e)
prettyDL (DataPropLeaf us e (Just e'):xs) = prettyDL xs $$ indent 2 ("|" <+> foldMap pretty us <+> pretty e <+> "of" <+> pretty e')
universalHelper :: [Universal] -> Doc
universalHelper = mconcat . fmap pretty . reverse
prettyLeaf :: [Leaf] -> Doc
prettyLeaf [] = mempty
prettyLeaf [Leaf [] s [] Nothing] = indent 2 ("|" <+> text s)
prettyLeaf [Leaf [] s [] (Just e)] = indent 2 ("|" <+> text s <+> "of" <+> pretty e)
prettyLeaf (Leaf [] s [] Nothing:xs) = prettyLeaf xs $$ indent 2 ("|" <+> text s)
prettyLeaf (Leaf [] s [] (Just e):xs) = prettyLeaf xs $$ indent 2 ("|" <+> text s <+> "of" <+> pretty e)
prettyLeaf [Leaf [] s as Nothing] = indent 2 ("|" <+> text s <> prettyArgs as)
prettyLeaf [Leaf [] s as (Just e)] = indent 2 ("|" <+> text s <> prettyArgs as <+> "of" <+> pretty e)
prettyLeaf (Leaf [] s as Nothing:xs) = prettyLeaf xs $$ indent 2 ("|" <+> text s <> prettyArgs as)
prettyLeaf (Leaf [] s as (Just e):xs) = prettyLeaf xs $$ indent 2 ("|" <+> text s <> prettyArgs as <+> "of" <+> pretty e)
prettyLeaf [Leaf us s [] Nothing] = indent 2 ("|" <+> universalHelper us <+> text s)
prettyLeaf [Leaf us s [] (Just e)] = indent 2 ("|" <+> universalHelper us <+> text s <+> "of" <+> pretty e)
prettyLeaf (Leaf us s [] Nothing:xs) = prettyLeaf xs $$ indent 2 ("|" <+> universalHelper us <+> text s)
prettyLeaf (Leaf us s [] (Just e):xs) = prettyLeaf xs $$ indent 2 ("|" <+> universalHelper us <+> text s <+> "of" <+> pretty e)
prettyLeaf [Leaf us s as Nothing] = indent 2 ("|" <+> universalHelper us <+> text s <> prettyArgs as)
prettyLeaf [Leaf us s as (Just e)] = indent 2 ("|" <+> universalHelper us <+> text s <> prettyArgs as <+> "of" <+> pretty e)
prettyLeaf (Leaf us s as Nothing:xs) = prettyLeaf xs $$ indent 2 ("|" <+> universalHelper us <+> text s <> prettyArgs as)
prettyLeaf (Leaf us s as (Just e):xs) = prettyLeaf xs $$ indent 2 ("|" <+> universalHelper us <+> text s <> prettyArgs as <+> "of" <+> pretty e)
prettyHelper :: Doc -> [Doc] -> [Doc]
prettyHelper _ [x] = [x]
prettyHelper c (x:xs) = flatAlt (" " <> x) x : fmap (c <>) xs
prettyHelper _ x = x
prettyBody :: Doc -> Doc -> [Doc] -> Doc
prettyBody c1 c2 [d] = c1 <> d <> c2
prettyBody c1 c2 ds = (c1 <>) . align . indent (1) . cat . (<> pure c2) $ ds
prettyArgsG' :: Doc -> Doc -> Doc -> [Doc] -> Doc
prettyArgsG' c3 c1 c2 = prettyBody c1 c2 . prettyHelper c3 . reverse
prettyArgsList :: Doc -> Doc -> Doc -> [Doc] -> Doc
prettyArgsList c3 c1 c2 = prettyBody c1 c2 . va . prettyHelper c3
va :: [Doc] -> [Doc]
va = (& _tail.traverse %~ group)
prettyArgsG :: Doc -> Doc -> [Doc] -> Doc
prettyArgsG = prettyArgsG' ", "
prettyArgsU :: (Pretty a) => Doc -> Doc -> [a] -> Doc
prettyArgsU = prettyArgs' ","
prettyArgs' :: (Pretty a) => Doc -> Doc -> Doc -> [a] -> Doc
prettyArgs' = fmap pretty -.*** prettyArgsG'
prettyArgs :: (Pretty a) => [a] -> Doc
prettyArgs = prettyArgs' ", " "(" ")"
fancyU :: [Universal] -> Doc
fancyU = foldMap pretty . reverse
(<#>) :: Doc -> Doc -> Doc
(<#>) a b = lineAlt (a <$> indent 2 b) (a <+> b)
instance Pretty PreFunction where
pretty (PreF i si [] [] [NoArgs] (Just rt) Nothing (Just e)) = pretty i <+> ":" <> text si <#> pretty rt <+> "=" <$> indent 2 (pretty e)
pretty (PreF i si [] [] as (Just rt) Nothing (Just e)) = pretty i <> prettyArgs as <+> ":" <> text si <#> pretty rt <+> "=" <$> indent 2 (pretty e)
pretty (PreF i si [] [] as (Just rt) (Just t) (Just e)) = pretty i </> ".<" <> pretty t <> ">." </> prettyArgs as <+> ":" <> text si <#> pretty rt <+> "=" <$> indent 2 (pretty e)
pretty (PreF i si [] us as (Just rt) (Just t) (Just e)) = pretty i </> fancyU us </> ".<" <> pretty t <> ">." </> prettyArgs as <+> ":" <> text si <#> pretty rt <+> "=" <$> indent 2 (pretty e)
pretty (PreF i si [] us [NoArgs] (Just rt) Nothing (Just e)) = pretty i </> fancyU us <+> ":" <> text si <#> pretty rt <+> "=" <$> indent 2 (pretty e)
pretty (PreF i si [] us as (Just rt) Nothing (Just e)) = pretty i </> fancyU us </> prettyArgs as <+> ":" <> text si <#> pretty rt <+> "=" <$> indent 2 (pretty e)
pretty (PreF i si pus [] as (Just rt) Nothing (Just e)) = fancyU pus </> pretty i <> prettyArgs as <+> ":" <> text si <#> pretty rt <+> "=" <$> indent 2 (pretty e)
pretty (PreF i si pus [] as (Just rt) (Just t) (Just e)) = fancyU pus </> pretty i <+> ".<" <> pretty t <> ">." </> prettyArgs as <+> ":" <> text si <#> pretty rt <+> "=" <$> indent 2 (pretty e)
pretty (PreF i si pus us as (Just rt) (Just t) (Just e)) = fancyU pus </> pretty i </> fancyU us </> ".<" <> pretty t <> ">." </> prettyArgs as <+> ":" <> text si <#> pretty rt <+> "=" <$> indent 2 (pretty e)
pretty (PreF i si pus us as (Just rt) Nothing (Just e)) = fancyU pus </> pretty i </> fancyU us </> prettyArgs as <+> ":" <> text si <#> pretty rt <+> "=" <$> indent 2 (pretty e)
pretty (PreF i si [] [] as (Just rt) Nothing Nothing) = pretty i <> prettyArgs as <+> ":" <> text si <#> pretty rt
pretty (PreF i si [] us [] (Just rt) Nothing Nothing) = pretty i </> fancyU us <+> ":" <> text si <#> pretty rt
pretty (PreF i si [] us as (Just rt) Nothing Nothing) = pretty i </> fancyU us </> prettyArgs as <+> ":" <> text si <#> pretty rt
pretty (PreF i si pus us as (Just rt) Nothing Nothing) = fancyU pus </> pretty i </> fancyU us </> prettyArgs as <+> ":" <> text si <#> pretty rt
pretty _ = undefined
instance Pretty DataPropLeaf where
pretty (DataPropLeaf us e Nothing) = "|" <+> foldMap pretty (reverse us) <+> pretty e
pretty (DataPropLeaf us e (Just e')) = "|" <+> foldMap pretty (reverse us) <+> pretty e <+> "of" <+> pretty e'
instance Pretty Declaration where
pretty (AbsType _ s as Nothing) = "abstype" <+> text s <> prettyArgs as
pretty (AbsViewType _ s as Nothing) = "absvtype" <+> text s <> prettyArgs as
pretty (AbsViewType _ s as (Just t)) = "absvtype" <+> text s <> prettyArgs as <+> "=" <+> pretty t
pretty (SumViewType s [] ls) = "datavtype" <+> text s <+> "=" <$> prettyLeaf ls
pretty (SumViewType s as ls) = "datavtype" <+> text s <> prettyArgs as <+> "=" <$> prettyLeaf ls
pretty (SumType s [] ls) = "datatype" <+> text s <+> "=" <$> prettyLeaf ls
pretty (SumType s as ls) = "datatype" <+> text s <> prettyArgs as <+> "=" <$> prettyLeaf ls
pretty (Impl [] i) = pretty i
pretty (PrVal p e) = "prval" <+> pretty p <+> "=" <+> pretty e
pretty (Val a Nothing p e) = "val" <> pretty a <+> pretty p <+> "=" <+> pretty e
pretty (Val a (Just t) p e) = "val" <> pretty a <+> pretty p <> ":" <+> pretty t <+> "=" <+> pretty e
pretty (Var (Just t) p Nothing e) = "var" <+> pretty p <> ":" <+> pretty t <+> "with" <+> pretty e
pretty (Var Nothing p e Nothing) = "var" <+> pretty p <+> "=" <+> pretty e
pretty (Var (Just t) p e Nothing) = "var" <+> pretty p <> ":" <+> pretty t <+> "=" <+> pretty e
pretty (Include s) = "#include" <+> pretty s
pretty (Staload b Nothing s) = bool "" "#" b <> "staload" <+> pretty s
pretty (Staload b (Just q) s) = bool "" "#" b <> "staload" <+> pretty q <+> "=" <+> pretty s
pretty (CBlock s) = string s
pretty (Comment s) = string s
pretty (OverloadOp _ o n) = "overload" <+> pretty o <+> "with" <+> pretty n
pretty (OverloadIdent _ i n Nothing) = "overload" <+> text i <+> "with" <+> pretty n
pretty (OverloadIdent _ i n (Just n')) = "overload" <+> text i <+> "with" <+> pretty n <+> "of" <+> pretty n'
pretty (Define s) = text s
pretty (Func _ (Fn pref)) = "fn" </> pretty pref
pretty (Func _ (Fun pref)) = "fun" </> pretty pref
pretty (Func _ (CastFn pref)) = "castfn" </> pretty pref
pretty (Func _ (Fnx pref)) = "fnx" </> pretty pref
pretty (Func _ (And pref)) = "and" </> pretty pref
pretty (Func _ (Praxi pref)) = "praxi" </> pretty pref
pretty (Func _ (PrFun pref)) = "prfun" </> pretty pref
pretty (Func _ (PrFn pref)) = "prfn" </> pretty pref
pretty (Extern _ d) = "extern" <$> pretty d
pretty (DataProp _ s as ls) = "dataprop" <+> text s <> prettyArgs as <+> "=" <$> prettyDL ls
pretty (ViewTypeDef _ s [] t) = "vtypedef" <+> text s <+> "=" <#> pretty t
pretty (ViewTypeDef _ s as t) = "vtypedef" <+> text s <> prettyArgs as <+> "=" <#> pretty t
pretty (TypeDef _ s [] t) = "typedef" <+> text s <+> "=" <+> pretty t
pretty (TypeDef _ s as t) = "typedef" <+> text s <> prettyArgs as <+> "=" <+> pretty t
pretty (AbsProp _ n as) = "absprop" <+> text n <+> prettyArgs as
pretty (Assume n as e) = "assume" </> pretty n <> prettyArgs as <+> "=" </> pretty e
pretty (SymIntr _ n) = "symintr" <+> pretty n
pretty (Stacst _ n t Nothing) = "stacst" </> pretty n <+> ":" </> pretty t
pretty (Stacst _ n t (Just e)) = "stacst" </> pretty n <+> ":" </> pretty t <+> "=" </> pretty e
pretty (PropDef _ s as t) = "propdef" </> text s <+> prettyArgs as <+> "=" </> pretty t
pretty (Local _ d d') = "local" <$> indent 2 (pretty d) <$> "in" <$> indent 2 (pretty d') <$> "end"
pretty _ = undefined