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🔥 unP.

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Rob Rix 2019-06-27 12:12:29 -04:00
parent e776cd4051
commit 1f3cf601ad
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1 changed files with 14 additions and 15 deletions
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29
semantic-core/src/Data/Core/Pretty.hs
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@ -70,40 +70,39 @@ encloseIf True l r x = l <> x <> r
encloseIf False _ _ x = x encloseIf False _ _ x = x
prettify' :: Style -> Core Name -> AnsiDoc prettify' :: Style -> Core Name -> AnsiDoc
prettify' style = unP (0 :: Int) (pred (0 :: Int)) . kfold var let' seq' lam app unit bool if' string load edge frame dot assign ann k . fmap (const . name) prettify' style core = kfold var let' seq' lam app unit bool if' string load edge frame dot assign ann k (const . name <$> core) (0 :: Int) (pred (0 :: Int))
where var = const where var = const
let' a = konst $ keyword "let" <+> name a let' a = konst $ keyword "let" <+> name a
seq' a b prec v = seq' a b prec v =
let fore = unP 12 v a let fore = a 12 v
aft = unP 12 v b aft = b 12 v
open = symbol ("{" <> softline) open = symbol ("{" <> softline)
close = symbol (softline <> "}") close = symbol (softline <> "}")
separator = ";" <> Pretty.line separator = ";" <> Pretty.line
body = fore <> separator <> aft body = fore <> separator <> aft
in Pretty.align $ encloseIf (12 > prec) open close (Pretty.align body) in Pretty.align $ encloseIf (12 > prec) open close (Pretty.align body)
lam f = p 0 (\ v -> lambda <> pretty (succ v) <+> arrow <+> unP 0 (succ v) f) lam f = p 0 (\ v -> lambda <> pretty (succ v) <+> arrow <+> f 0 (succ v))
f `app` x = p 10 (\ v -> unP 10 v f <+> unP 11 v x) f `app` x = p 10 (\ v -> f 10 v <+> x 11 v)
unit = konst $ primitive "unit" unit = konst $ primitive "unit"
bool b = konst $ primitive (if b then "true" else "false") bool b = konst $ primitive (if b then "true" else "false")
if' con tru fal = p 0 $ \ v -> if' con tru fal = p 0 $ \ v ->
let con' = keyword "if" <+> unP 0 v con let con' = keyword "if" <+> con 0 v
tru' = keyword "then" <+> unP 0 v tru tru' = keyword "then" <+> tru 0 v
fal' = keyword "else" <+> unP 0 v fal fal' = keyword "else" <+> fal 0 v
in Pretty.sep [con', tru', fal'] in Pretty.sep [con', tru', fal']
string s = konst . strlit $ Pretty.viaShow s string s = konst . strlit $ Pretty.viaShow s
load path = p 0 $ \ v -> keyword "load" <+> unP 0 v path load path = p 0 $ \ v -> keyword "load" <+> path 0 v
edge Lexical n = p 0 $ \ v -> "lexical" <+> unP 0 v n edge Lexical n = p 0 $ \ v -> "lexical" <+> n 0 v
edge Import n = p 0 $ \ v -> "import" <+> unP 0 v n edge Import n = p 0 $ \ v -> "import" <+> n 0 v
frame = konst $ primitive "frame" frame = konst $ primitive "frame"
item `dot` body = p 5 (\ v -> unP 5 v item <> symbol "." <> unP 6 v body) item `dot` body = p 5 (\ v -> item 5 v <> symbol "." <> body 6 v)
lhs `assign` rhs = p 4 (\ v -> unP 4 v lhs <+> symbol "=" <+> unP 5 v rhs) lhs `assign` rhs = p 4 (\ v -> lhs 4 v <+> symbol "=" <+> rhs 5 v)
-- Annotations are not pretty-printed, as it lowers the signal/noise ratio too profoundly. -- Annotations are not pretty-printed, as it lowers the signal/noise ratio too profoundly.
ann _ c = c ann _ c = c
k Z v = pretty v k Z v = pretty v
k (S n) v = unP 0 (pred v) n k (S n) v = n 0 (pred v)
p max b actual = encloseIf (actual > max) (symbol "(") (symbol ")") . b p max b actual = encloseIf (actual > max) (symbol "(") (symbol ")") . b
unP n i f = f n i
konst b _ _ = b konst b _ _ = b
lambda = case style of lambda = case style of