quox/lib/Quox/Syntax/Term/Pretty.idr

257 lines
8.2 KiB
Idris
Raw Normal View History

2022-04-23 18:21:30 -04:00
module Quox.Syntax.Term.Pretty
import Quox.Syntax.Term.Base
import Quox.Syntax.Term.Split
import Quox.Syntax.Term.Subst
2023-03-15 10:54:51 -04:00
import Quox.Context
2022-04-23 18:21:30 -04:00
import Quox.Pretty
import Data.Vect
2022-05-02 16:38:37 -04:00
%default total
2022-04-23 18:21:30 -04:00
2023-01-20 20:34:28 -05:00
private %inline
2023-03-04 15:02:51 -05:00
typeD, arrowD, darrowD, timesD, lamD, eqndD, dlamD, annD :
2023-01-26 13:54:46 -05:00
Pretty.HasEnv m => m (Doc HL)
2023-02-25 13:14:26 -05:00
typeD = hlF Syntax $ ifUnicode "" "Type"
2023-02-25 13:14:11 -05:00
arrowD = hlF Syntax $ ifUnicode "" "->"
2023-03-04 15:02:51 -05:00
darrowD = hlF Syntax $ ifUnicode "" "=>"
2023-02-25 13:14:11 -05:00
timesD = hlF Syntax $ ifUnicode "×" "**"
lamD = hlF Syntax $ ifUnicode "λ" "fun"
eqndD = hlF Syntax $ ifUnicode "" "=="
dlamD = hlF Syntax $ ifUnicode "δ" "dfun"
annD = hlF Syntax $ ifUnicode "" "::"
2022-04-23 18:21:30 -04:00
2023-01-20 20:34:28 -05:00
private %inline
2023-03-04 15:02:51 -05:00
eqD, colonD, commaD, caseD, returnD, ofD : Doc HL
2023-01-26 13:54:46 -05:00
eqD = hl Syntax "Eq"
colonD = hl Syntax ":"
commaD = hl Syntax ","
caseD = hl Syntax "case"
ofD = hl Syntax "of"
returnD = hl Syntax "return"
2022-04-23 18:21:30 -04:00
2023-03-05 10:48:29 -05:00
export
prettyUnivSuffix : Pretty.HasEnv m => Universe -> m (Doc HL)
prettyUnivSuffix l =
ifUnicode (pretty $ pack $ map sub $ unpack $ show l) (pretty l)
where
sub : Char -> Char
sub c = case c of
'0' => ''; '1' => ''; '2' => ''; '3' => ''; '4' => ''
'5' => ''; '6' => ''; '7' => ''; '8' => ''; '9' => ''; _ => c
2023-03-15 10:54:51 -04:00
export
prettyUniverse : Universe -> Doc HL
prettyUniverse = hl Syntax . pretty
export
prettyBind : PrettyHL a => PrettyHL q => Pretty.HasEnv m =>
List q -> BaseName -> a -> m (Doc HL)
prettyBind qtys x s = do
var <- prettyQtyBinds qtys $ TV x
s <- withPrec Outer $ prettyM s
pure $ var <++> colonD <%%> hang 2 s
2023-02-26 08:54:18 -05:00
export
prettyBindType : PrettyHL a => PrettyHL b => PrettyHL q =>
Pretty.HasEnv m =>
2023-02-22 01:40:19 -05:00
List q -> BaseName -> a -> Doc HL -> b -> m (Doc HL)
2023-02-26 08:54:18 -05:00
prettyBindType qtys x s arr t = do
2023-03-15 10:54:51 -04:00
bind <- prettyBind qtys x s
t <- withPrec AnnR $ under T x $ prettyM t
parensIfM AnnR $ hang 2 $ parens bind <++> arr <%%> t
2023-02-26 08:54:18 -05:00
export
prettyArm : PrettyHL a => Pretty.HasEnv m =>
BinderSort -> SnocList BaseName -> Doc HL -> a -> m (Doc HL)
2023-02-26 08:54:18 -05:00
prettyArm sort xs pat body = do
body <- withPrec Outer $ unders sort xs $ prettyM body
2023-03-04 15:02:51 -05:00
pure $ hang 2 $ sep [pat <++> !darrowD, body]
2023-02-22 01:40:19 -05:00
2023-02-26 08:54:18 -05:00
export
prettyLams : PrettyHL a => Pretty.HasEnv m =>
Maybe (Doc HL) -> BinderSort -> SnocList BaseName -> a ->
m (Doc HL)
2023-02-26 08:54:18 -05:00
prettyLams lam sort names body = do
let var = case sort of T => TVar; D => DVar
header <- sequence $ [hlF var $ prettyM x | x <- toList names]
2023-02-26 08:54:18 -05:00
let header = sep $ maybe header (:: header) lam
parensIfM Outer =<< prettyArm sort names header body
2023-02-26 08:54:18 -05:00
export
prettyApps : PrettyHL f => PrettyHL a => Pretty.HasEnv m =>
2023-02-26 05:22:44 -05:00
Maybe (Doc HL) -> f -> List a -> m (Doc HL)
2023-02-26 08:54:18 -05:00
prettyApps pfx fun args = do
2023-03-16 13:19:17 -04:00
fun <- withPrec App $ prettyM fun
2023-02-26 08:54:18 -05:00
args <- traverse (withPrec Arg . prettyArg) args
parensIfM App $ hang 2 $ sep $ fun :: args
2023-02-26 05:22:44 -05:00
where
prettyArg : a -> m (Doc HL)
2023-02-26 08:54:18 -05:00
prettyArg = case pfx of
Nothing => prettyM
Just pfx => \x => pure $ hl Delim pfx <+> !(prettyM x)
2023-02-22 01:40:19 -05:00
2023-02-26 08:54:18 -05:00
export
prettyTuple : PrettyHL a => Pretty.HasEnv m => List a -> m (Doc HL)
2023-02-22 01:40:19 -05:00
prettyTuple = map (parens . align . separate commaD) . traverse prettyM
2023-02-26 08:54:18 -05:00
export
prettyArms : PrettyHL a => Pretty.HasEnv m =>
List (SnocList BaseName, Doc HL, a) -> m (Doc HL)
2023-02-26 08:54:18 -05:00
prettyArms =
map (braces . asep) . traverse (\(xs, l, r) => prettyArm T xs l r)
2023-02-22 01:40:19 -05:00
2023-02-26 08:54:18 -05:00
export
prettyCase : PrettyHL a => PrettyHL b => PrettyHL c => PrettyHL q =>
Pretty.HasEnv m =>
q -> a -> BaseName -> b -> List (SnocList BaseName, Doc HL, c) ->
2023-02-22 01:40:19 -05:00
m (Doc HL)
2023-02-26 08:54:18 -05:00
prettyCase pi elim r ret arms = do
elim <- prettyQtyBinds [pi] elim
ret <- prettyLams Nothing T [< r] ret
2023-02-26 08:54:18 -05:00
arms <- prettyArms arms
pure $ asep [caseD <++> elim, returnD <++> ret, ofD <++> arms]
2023-02-22 01:40:19 -05:00
export
escapeString : String -> String
escapeString = concatMap esc1 . unpack where
esc1 : Char -> String
esc1 '"' = #"\""#
esc1 '\\' = #"\\"#
esc1 '\n' = #"\n"#
esc1 c = singleton c
2023-03-16 13:39:24 -04:00
export
quoteTag : TagVal -> Doc HL
quoteTag tag =
if isName tag then fromString tag else
hcat ["\"", fromString $ escapeString tag, "\""]
2023-03-16 13:39:24 -04:00
export
prettyTag : TagVal -> Doc HL
2023-03-16 13:39:24 -04:00
prettyTag t = hl Tag $ "'" <+> quoteTag t
2023-03-16 13:19:17 -04:00
export
prettyTagBare : TagVal -> Doc HL
2023-03-16 13:39:24 -04:00
prettyTagBare t = hl Tag $ quoteTag t
2023-03-16 13:19:17 -04:00
2023-02-22 01:40:19 -05:00
2023-02-26 05:25:11 -05:00
parameters (showSubsts : Bool)
mutual
2022-04-23 18:21:30 -04:00
export covering
2023-02-26 05:25:11 -05:00
[TermSubst] PrettyHL q => PrettyHL (Term q d n) using TermSubst ElimSubst
where
2022-04-23 18:21:30 -04:00
prettyM (TYPE l) =
parensIfM App $ !typeD <+> hl Syntax !(prettyUnivSuffix l)
prettyM (Pi qty s (S [< x] t)) =
2023-02-26 05:25:11 -05:00
prettyBindType [qty] x s !arrowD t.term
2023-02-22 01:40:19 -05:00
prettyM (Lam (S x t)) =
let GotLams {names, body, _} = getLams' x t.term Refl in
prettyLams (Just !lamD) T (toSnocList' names) body
prettyM (Sig s (S _ (N t))) = do
s <- withPrec InTimes $ prettyM s
t <- withPrec Times $ prettyM t
parensIfM Times $ asep [s <++> !timesD, t]
prettyM (Sig s (S [< x] (Y t))) =
prettyBindType {q} [] x s !timesD t
2023-01-26 13:54:46 -05:00
prettyM (Pair s t) =
let GotPairs {init, last, _} = getPairs' [< s] t in
prettyTuple $ toList $ init :< last
prettyM (Enum tags) =
2023-03-16 13:19:17 -04:00
pure $ delims "{" "}" . aseparate comma $ map prettyTagBare $
2023-02-26 05:23:30 -05:00
Prelude.toList tags
prettyM (Tag t) =
pure $ prettyTag t
2023-02-26 08:54:18 -05:00
prettyM (Eq (S _ (N ty)) l r) = do
l <- withPrec InEq $ prettyM l
r <- withPrec InEq $ prettyM r
ty <- withPrec InEq $ prettyM ty
parensIfM Eq $ asep [l <++> !eqndD, r <++> colonD, ty]
prettyM (Eq (S [< i] (Y ty)) l r) = do
ty <- bracks <$> withPrec Outer (prettyLams Nothing D [< i] ty)
2023-02-26 08:54:18 -05:00
l <- withPrec Arg $ prettyM l
r <- withPrec Arg $ prettyM r
parensIfM App $ eqD <++> asep [ty, l, r]
2023-02-22 01:40:19 -05:00
prettyM (DLam (S i t)) =
let GotDLams {names, body, _} = getDLams' i t.term Refl in
prettyLams (Just !dlamD) D (toSnocList' names) body
2023-03-15 10:54:51 -04:00
prettyM (E e) = prettyM e
2022-04-23 18:21:30 -04:00
prettyM (CloT s th) =
2023-02-26 05:25:11 -05:00
if showSubsts then
parensIfM SApp . hang 2 =<<
[|withPrec SApp (prettyM s) <%> prettyTSubst th|]
2023-02-26 05:25:11 -05:00
else
prettyM $ pushSubstsWith' id th s
2022-04-23 18:21:30 -04:00
prettyM (DCloT s th) =
2023-02-26 05:25:11 -05:00
if showSubsts then
parensIfM SApp . hang 2 =<<
[|withPrec SApp (prettyM s) <%> prettyDSubst th|]
2023-02-26 05:25:11 -05:00
else
prettyM $ pushSubstsWith' th id s
2022-04-23 18:21:30 -04:00
export covering
2023-02-26 05:25:11 -05:00
[ElimSubst] PrettyHL q => PrettyHL (Elim q d n) using TermSubst ElimSubst
where
2022-04-23 18:21:30 -04:00
prettyM (F x) =
hl' Free <$> prettyM x
prettyM (B i) =
prettyVar TVar TVarErr (!ask).tnames i
prettyM (e :@ s) =
2023-01-20 20:34:28 -05:00
let GotArgs {fun, args, _} = getArgs' e [s] in
2023-02-26 05:22:44 -05:00
prettyApps Nothing fun args
prettyM (CasePair pi p (S [< r] ret) (S [< x, y] body)) = do
2023-02-26 08:54:18 -05:00
pat <- parens . separate commaD <$> traverse (hlF TVar . prettyM) [x, y]
prettyCase pi p r ret.term [([< x, y], pat, body.term)]
prettyM (CaseEnum pi t (S [< r] ret) arms) =
2023-02-26 05:25:11 -05:00
prettyCase pi t r ret.term
[([<], prettyTag t, b) | (t, b) <- SortedMap.toList arms]
2023-01-20 20:34:28 -05:00
prettyM (e :% d) =
let GotDArgs {fun, args, _} = getDArgs' e [d] in
2023-02-26 05:22:44 -05:00
prettyApps (Just "@") fun args
2023-02-26 08:54:18 -05:00
prettyM (s :# a) = do
s <- withPrec AnnL $ prettyM s
a <- withPrec AnnR $ prettyM a
parensIfM AnnR $ hang 2 $ s <++> !annD <%%> a
2022-04-23 18:21:30 -04:00
prettyM (CloE e th) =
2023-02-26 05:25:11 -05:00
if showSubsts then
parensIfM SApp . hang 2 =<<
[|withPrec SApp (prettyM e) <%> prettyTSubst th|]
2023-02-26 05:25:11 -05:00
else
prettyM $ pushSubstsWith' id th e
2022-04-23 18:21:30 -04:00
prettyM (DCloE e th) =
2023-02-26 05:25:11 -05:00
if showSubsts then
parensIfM SApp . hang 2 =<<
[|withPrec SApp (prettyM e) <%> prettyDSubst th|]
2023-02-26 05:25:11 -05:00
else
prettyM $ pushSubstsWith' th id e
2022-04-23 18:21:30 -04:00
export covering
2023-01-08 14:44:25 -05:00
prettyTSubst : Pretty.HasEnv m => PrettyHL q =>
TSubst q d from to -> m (Doc HL)
2023-02-26 05:25:11 -05:00
prettyTSubst s =
prettySubstM (prettyM @{ElimSubst}) (!ask).tnames TVar "[" "]" s
export covering %inline
PrettyHL q => PrettyHL (Term q d n) where
prettyM = prettyM @{TermSubst False}
export covering %inline
PrettyHL q => PrettyHL (Elim q d n) where
prettyM = prettyM @{ElimSubst False}
2023-03-15 10:54:51 -04:00
export covering
prettyTerm : PrettyHL q => (unicode : Bool) ->
(dnames : NContext d) -> (tnames : NContext n) ->
Term q d n -> Doc HL
prettyTerm unicode dnames tnames term =
let env = MakePrettyEnv {
dnames = toSnocList' dnames,
tnames = toSnocList' tnames,
unicode, prec = Outer
} in
runReader env $ prettyM term