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module Inky.Term.Pretty
import Data.Singleton
import Data.String
import Inky.Term
import Inky.Type.Pretty
import Text.Bounded
import Text.PrettyPrint.Prettyprinter
export
prettyTerm :
{mode : Mode} -> {tyCtx, tmCtx : SnocList String} ->
Term mode m tyCtx tmCtx -> InkyPrec -> Doc ann
prettyAllTerm :
{mode : Mode} -> {tyCtx, tmCtx : SnocList String} ->
List (Term mode m tyCtx tmCtx) -> InkyPrec -> List (Doc ann)
prettyTermCtx :
{mode : Mode} -> {tyCtx, tmCtx : SnocList String} ->
Context (Term mode m tyCtx tmCtx) -> SnocList (Doc ann)
prettyCases :
{mode : Mode} -> {tyCtx, tmCtx : SnocList String} ->
Context (x ** Term mode m tyCtx (tmCtx :< x)) -> SnocList (Doc ann)
prettyLet :
(eqLine : Doc ann) ->
(doc : List String) ->
(bound, body : Doc ann) ->
Doc ann
prettyType' :
(mode : Mode) -> {tyCtx, tmCtx : SnocList String} ->
Ty' mode m tyCtx tmCtx -> InkyPrec -> Doc ann
prettyBoundType' :
(mode : Mode) -> {tyCtx, tmCtx : SnocList String} ->
BoundTy' mode m tyCtx tmCtx -> InkyPrec -> Doc ann
prettyAllTerm [] d = []
prettyAllTerm (t :: ts) d = prettyTerm t d :: prettyAllTerm ts d
prettyTermCtx [<] = [<]
prettyTermCtx (ts :< (l :- Abs _ (bound ** t))) =
prettyTermCtx ts :<
(group $ align $
pretty l <+> ":" <++>
"\\" <+> concatWith (surround $ "," <++> neutral) (map pretty bound) <++> "=>" <+> line <+>
prettyTerm t Open)
prettyTermCtx (ts :< (l :- QAbs _ (bound ** t))) =
prettyTermCtx ts :<
(group $ align $
pretty l <+> ":" <++>
"\\" <+> concatWith (surround $ "," <++> neutral) (map pretty bound) <++> "~>" <+> line <+>
prettyTerm t Open)
prettyTermCtx (ts :< (l :- t)) =
prettyTermCtx ts :<
(group $ align $ pretty l <+> ":" <+> line <+> prettyTerm t Open)
prettyCases [<] = [<]
prettyCases (ts :< (l :- (x ** Abs _ (bound ** t)))) =
prettyCases ts :<
(group $ align $
pretty l <++> pretty x <++> "=>" <++>
"\\" <+> concatWith (surround $ "," <++> neutral) (map pretty bound) <++> "=>" <+> line <+>
prettyTerm t Open)
prettyCases (ts :< (l :- (x ** t))) =
prettyCases ts :<
(group $ align $
pretty l <++> pretty x <++> "=>" <+> line <+>
prettyTerm t Open)
prettyLet eqLine [] bound body =
group $ align $
(group $
hang 2
(group (pretty "let" <++> eqLine) <+> line <+>
group bound) <+> line <+>
"in") <+> line <+>
group body
prettyLet eqLine doc bound body =
align $
(hang 2 $
group (pretty "let" <++> eqLine) <+> hardline <+>
concatMap (enclose "--" hardline . pretty) doc <+>
group bound) <+> hardline <+>
"in" <+> line <+>
group body
prettyType' (Quote tyCtx tmCtx) a d = parenthesise (d < Prefix) $ align $ "," <+> prettyTerm a Prefix
prettyType' (Sugar qtCtx) a d = prettyType a d
prettyType' NoSugar a d = prettyType a d
prettyBoundType' (Quote tyCtx tmCtx) a d = parenthesise (d < Prefix) $ align $ "," <+> prettyTerm a Prefix
prettyBoundType' (Sugar qtCtx) (x ** a) d =
parens $ group $ align $ hang 2 $ "\\" <+> pretty x <++> "=>" <+> line <+> prettyType a Open
prettyBoundType' NoSugar (x ** a) d =
parens $ group $ align $ hang 2 $ "\\" <+> pretty x <++> "=>" <+> line <+> prettyType a Open
prettyTerm (Annot _ t a) d =
group $ align $ parenthesise (d < Annot) $
prettyTerm t App <+> line <+>
":" <++> prettyType' mode a Open
prettyTerm (Var _ i) d = pretty (unVal $ nameOf i)
prettyTerm {mode = Sugar _} (Let meta (Annot _ (Abs _ (bound ** e)) a) (x ** t)) d =
let (binds, cod, rest) = groupBinds bound a in
let binds = map (\x => parens (pretty x.name <++> ":" <++> prettyType x.value Open)) binds in
-- NOTE: group breaks comments
align $ parenthesise (d < Open) $
prettyLet
(group $ hang 2 $ flatAlt
( pretty x <+> line <+>
concatWith (surround line) binds <+> line <+>
":" <++> prettyType cod Open <++> "=" <+>
if null rest then neutral
else line <+> "\\" <+> concatWith (surround $ "," <++> neutral) (map pretty rest) <++> "=>"
)
( pretty x <++> concatWith (<++>) binds <++> ":" <++> prettyType cod Open <++> "=" <+>
if null rest then neutral
else neutral <++> "\\" <+> concatWith (surround $ "," <++> neutral) (map pretty rest) <++> "=>"
))
meta.doc
(prettyTerm e Open)
(prettyTerm t Open)
where
groupBinds : List String -> Ty tyCtx -> (List (Assoc $ Ty tyCtx), Ty tyCtx, List String)
groupBinds [] a = ([], a, [])
groupBinds (x :: xs) (TArrow a b) =
let (binds, cod, rest) = groupBinds xs b in
((x :- a) :: binds, cod, rest)
groupBinds xs a = ([], a, xs)
prettyTerm (Let meta (Annot _ e a) (x ** t)) d =
-- NOTE: group breaks comments
align $ parenthesise (d < Open) $
prettyLet
(pretty x <+> line <+> ":" <++> prettyType' mode a Open <++> "=")
meta.doc
(prettyTerm e Open)
(prettyTerm t Open)
prettyTerm (Let meta e (x ** t)) d =
-- NOTE: group breaks comments
align $ parenthesise (d < Open) $
prettyLet
(pretty x <++> "=")
meta.doc
(prettyTerm e Open)
(prettyTerm t Open)
prettyTerm (LetTy meta a (x ** t)) d =
-- NOTE: group breaks comments
align $ parenthesise (d < Open) $
prettyLet
(pretty x <++> "=")
meta.doc
(prettyType a Open)
(prettyTerm t Open)
prettyTerm (Abs _ (bound ** t)) d =
group $ hang 2 $ parenthesise (d < Open) $
"\\" <+> concatWith (surround $ "," <++> neutral) (map pretty bound) <++> "=>" <+> line <+>
prettyTerm t Open
prettyTerm (App _ (Map _ a b c) ts) d =
group $ align $ hang 2 $ parenthesise (d < App) $
concatWith (surround line)
( pretty "map"
:: prettyBoundType' mode a Suffix
:: prettyType' mode b Suffix
:: prettyType' mode c Suffix
:: prettyAllTerm ts Suffix)
prettyTerm (App _ f ts) d =
group $ align $ hang 2 $ parenthesise (d < App) $
concatWith (surround line) (prettyTerm f App :: prettyAllTerm ts Suffix)
prettyTerm (Tup _ (MkRow ts _)) d =
let parts = prettyTermCtx ts <>> [] in
group $ align $ enclose "<" ">" $
flatAlt
(neutral <++> concatWith (surround $ line' <+> ";" <++> neutral) parts <+> line)
(concatWith (surround $ ";" <++> neutral) parts)
prettyTerm (Prj _ e l) d =
group $ align $ hang 2 $ parenthesise (d < Suffix) $
prettyTerm e Suffix <+> line' <+> "." <+> pretty l
prettyTerm (Inj _ l t) d =
group $ align $ hang 2 $ parenthesise (d < App) $
pretty l <+> line <+> prettyTerm t Suffix
prettyTerm (Case _ e (MkRow ts _)) d =
let parts = prettyCases ts <>> [] in
group $ align $ hang 2 $ parenthesise (d < Open) $
(group $ "case" <++> prettyTerm e Open <++> "of") <+> line <+>
(braces $ flatAlt
(neutral <++> concatWith (surround $ line' <+> ";" <++> neutral) parts <+> line)
(concatWith (surround $ ";" <++> neutral) parts))
prettyTerm (Roll _ t) d =
parenthesise (d < Prefix) $ align $ pretty "~" <+> prettyTerm t Prefix
prettyTerm (Unroll _ e) d =
parenthesise (d < Prefix) $ align $ pretty "!" <+> prettyTerm e Prefix
prettyTerm (Fold _ e ("__tmp" ** Case _ (Var _ ((%%) "__tmp" {pos = Here})) (MkRow ts _))) d =
let parts = prettyCases ts <>> [] in
-- XXX: should check for usage of "__tmp" in ts
group $ align $ hang 2 $ parenthesise (d < Open) $
(group $ "foldcase" <++> prettyTerm e Open <++> "by") <+> line <+>
(braces $ flatAlt
(neutral <++> concatWith (surround $ line' <+> ";" <++> neutral) parts <+> line)
(concatWith (surround $ ";" <++> neutral) parts))
prettyTerm (Fold _ e (x ** t)) d =
group $ align $ hang 2 $ parenthesise (d < Open) $
(group $ hang (-2) $ "fold" <++> prettyTerm e Open <++> "by") <+> line <+>
(group $ align $ hang 2 $ parens $
"\\" <+> pretty x <++> "=>" <+> line <+> prettyTerm t Open)
prettyTerm (Map _ a b c) d =
group $ align $ hang 2 $ parenthesise (d < App) $
concatWith (surround line)
[ pretty "map"
, prettyBoundType' mode a Suffix
, prettyType' mode b Suffix
, prettyType' mode c Suffix
]
prettyTerm (QuasiQuote _ t) d =
parenthesise (d < Prefix) $ align $ pretty "`" <+> prettyTerm t Prefix
prettyTerm (Unquote _ t) d =
parenthesise (d < Prefix) $ align $ pretty "," <+> prettyTerm t Prefix
prettyTerm (QAbs _ (bound ** t)) d =
group $ hang 2 $ parenthesise (d < Open) $
"\\" <+> concatWith (surround $ "," <++> neutral) (map pretty bound) <++> "~>" <+> line <+>
prettyTerm t Open
prettyTerm (Lit _ k) d = pretty k
prettyTerm (Suc _ t) d =
group $ align $ hang 2 $ parenthesise (d < App) $
concatWith (surround line) [pretty "suc", prettyTerm t Suffix]
prettyTerm (List _ ts) d =
let parts = prettyAllTerm ts Open in
group $ align $ enclose "[" "]" $
flatAlt
(neutral <++> concatWith (surround $ line' <+> ";" <++> neutral) parts <+> line)
(concatWith (surround $ ";" <++> neutral) parts)
prettyTerm (Cons _ t u) d =
group $ align $ hang 2 $ parenthesise (d < App) $
concatWith (surround line) [pretty "cons", prettyTerm t Suffix, prettyTerm u Suffix]
prettyTerm (Str _ str) d = enclose "\"" "\"" $ pretty str
|
