Skip to content

Pretty-print select functions #25

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
merged 1 commit into from
Sep 4, 2025
Merged

Pretty-print select functions #25

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
11 changes: 10 additions & 1 deletion src/Constrained/TheKnot.hs
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -198,7 +198,16 @@ deriving instance Eq (ProdW as b)

deriving instance Show (ProdW as b)

instance Syntax ProdW
instance Syntax ProdW where
prettySymbol ProdW _ _ = Nothing
prettySymbol ProdFstW (t :> Nil) p = parensIf (p > 10) <$> prettySelect 0 t
prettySymbol ProdSndW (t :> Nil) p = parensIf (p > 10) <$> prettySelect 1 t

prettySelect :: Int -> TermD deps t -> Maybe (Doc ann)
prettySelect i (App f (t :> Nil))
| Just ProdSndW <- getWitness f = prettySelect (i + 1) t
| Just ToGenericW <- getWitness f = Just $ "sel @" <> pretty i <+> pretty t
prettySelect _ _ = Nothing

instance Semantics ProdW where
semantics ProdW = Prod
Expand Down