diff options
Diffstat (limited to 'src/Main.idr')
-rw-r--r-- | src/Main.idr | 50 |
1 files changed, 3 insertions, 47 deletions
diff --git a/src/Main.idr b/src/Main.idr index 05208eb..8d69017 100644 --- a/src/Main.idr +++ b/src/Main.idr @@ -2,16 +2,11 @@ module Main import CC.Name import CC.Term +import CC.Term.Raw import CC.Thinning -import Data.DPair -import Data.List -import Data.Nat -import Data.Singleton import Data.String -import Decidable.Equality - import System import System.File.ReadWrite import System.File.Virtual @@ -56,45 +51,6 @@ normalise env t = quote $ eval env t -------------------------------------------------------------------------------- -data RawTerm : Type where - RVar : (n : Name) -> RawTerm - RAbs : (n : Name) -> RawTerm -> RawTerm - RApp : RawTerm -> RawTerm -> RawTerm - RLet : (n : Name) -> RawTerm -> RawTerm -> RawTerm - -%name RawTerm t, u - -data NameError : Type -> Type where - Ok : ty -> NameError ty - Err : List1 Name -> NameError ty - -Functor NameError where - map f (Ok v) = Ok (f v) - map f (Err errs) = Err errs - -Applicative NameError where - pure = Ok - - Ok f <*> Ok v = Ok (f v) - Ok f <*> Err ys = Err ys - Err xs <*> Ok v = Err xs - Err xs <*> Err ys = Err (xs ++ ys) - -lookup : (ctx : Context) -> (n : Name) -> NameError $ Subset Nat (\k => IsVar k n ctx) -lookup [<] n = Err (n ::: []) -lookup (ctx :< m) n = - case decEquiv n m of - Yes eq => Ok (Element 0 (Here eq)) - No _ => map (\p => Element (S p.fst) (There p.snd)) (lookup ctx n) - -translate : (ctx : Context) -> RawTerm -> NameError (Term ctx) -translate ctx (RVar n) = (\p => Var p.fst n p.snd) <$> lookup ctx n -translate ctx (RAbs n t) = pure (Abs n) <*> translate (ctx :< n) t -translate ctx (RApp t u) = [| App (translate ctx t) (translate ctx u) |] -translate ctx (RLet n t u) = pure (Let n) <*> translate ctx t <*> translate (ctx :< n) u - --------------------------------------------------------------------------------- - putErrLn : HasIO io => String -> io () putErrLn str = do Right () <- fPutStrLn stderr str @@ -318,8 +274,8 @@ mainWith getOpt getTerm = do | [_, "--help"] => putStrLn helpMsg | _ => putErrLn helpMsg >> exitFailure rawTerm <- getTerm - let Ok term = translate [<] rawTerm - | Err errs => for_ errs putErr >> exitFailure + let Right term = runNameError $ translate [<] rawTerm + | Left errs => for_ errs putErr >> exitFailure let nf : Term [<] = normalise [<] term putDoc (pretty nf) where |