415 lines
12 KiB
Idris
415 lines
12 KiB
Idris
||| take freshly-parsed input, scope check, type check, add to env
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module Quox.Parser.FromParser
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import public Quox.Parser.FromParser.Error as Quox.Parser.FromParser
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import Quox.Pretty
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import Quox.Parser.Syntax
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import Quox.Parser.Parser
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import public Quox.Parser.LoadFile
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import Quox.Typechecker
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import Data.List
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import Data.Maybe
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import Data.SnocVect
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import Quox.EffExtra
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import Control.Monad.ST.Extra
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import System.File
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import System.Path
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import Data.IORef
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%hide Typing.Error
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%hide Lexer.Error
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%hide Parser.Error
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%default total
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public export
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data StateTag = NS | SEEN
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public export
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FromParserPure : List (Type -> Type)
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FromParserPure = [Except Error, DefsState, StateL NS Mods, NameGen, Log]
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public export
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FromParserIO : List (Type -> Type)
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FromParserIO = FromParserPure ++ [LoadFile]
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public export
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record PureParserResult a where
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constructor MkPureParserResult
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val : a
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suf : NameSuf
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defs : Definitions
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log : SnocList LogDoc
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logLevels : LevelStack
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export
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fromParserPure : {default [<] ns : Mods} ->
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NameSuf -> Definitions -> LevelStack ->
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Eff FromParserPure a -> Either Error (PureParserResult a)
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fromParserPure suf defs lvls act = runSTErr $ do
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suf <- newSTRef' suf
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defs <- newSTRef' defs
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log <- newSTRef' [<]
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lvls <- newSTRef' lvls
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res <- runEff act $ with Union.(::)
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[handleExcept $ \e => stLeft e,
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handleStateSTRef defs,
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handleStateSTRef !(newSTRef' ns),
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handleStateSTRef suf,
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handleLogST log lvls]
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pure $ MkPureParserResult {
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val = res,
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suf = !(readSTRef' suf),
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defs = !(readSTRef' defs),
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log = !(readSTRef' log),
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logLevels = !(readSTRef' lvls)
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}
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parameters {auto _ : Functor m} (b : Var n -> m a) (f : PName -> m a)
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(xs : Context' PatVar n)
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private
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fromBaseName : PBaseName -> m a
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fromBaseName x = maybe (f $ MakePName [<] x) b $
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Context.find (\y => y.name == Just x) xs
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private
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fromName : PName -> m a
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fromName x = if null x.mods then fromBaseName x.base else f x
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export
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fromPDimWith : Has (Except Error) fs =>
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Context' PatVar d -> PDim -> Eff fs (Dim d)
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fromPDimWith ds (K e loc) = pure $ K e loc
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fromPDimWith ds (V i loc) =
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fromBaseName (\i => pure $ B i loc)
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(const $ throw $ DimNotInScope loc i) ds i
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private
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avoidDim : Has (Except Error) fs =>
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Context' PatVar d -> Loc -> PName -> Eff fs Name
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avoidDim ds loc x =
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fromName (const $ throw $ DimNameInTerm loc x.base) (pure . fromPName) ds x
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private
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resolveName : Mods -> Loc -> Name -> Maybe Universe ->
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Eff FromParserPure (Term d n)
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resolveName ns loc x u =
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let here = addMods ns x in
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if isJust $ lookup here !(getAt DEFS) then
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pure $ FT here (fromMaybe 0 u) loc
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else do
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let ns :< _ = ns
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| _ => throw $ TermNotInScope loc x
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resolveName ns loc x u
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export
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fromPatVar : PatVar -> BindName
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fromPatVar (Unused loc) = BN Unused loc
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fromPatVar (PV x loc) = BN (UN x) loc
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export
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fromPQty : PQty -> Qty
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fromPQty (PQ q _) = q
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export
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fromPTagVal : PTagVal -> TagVal
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fromPTagVal (PT t _) = t
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private
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fromV : Context' PatVar d -> Context' PatVar n ->
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PName -> Maybe Universe -> Loc -> Eff FromParserPure (Term d n)
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fromV ds ns x u loc = fromName bound free ns x where
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bound : Var n -> Eff FromParserPure (Term d n)
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bound i = unless (isNothing u) (throw $ DisplacedBoundVar loc x) $> BT i loc
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free : PName -> Eff FromParserPure (Term d n)
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free x = resolveName !(getAt NS) loc !(avoidDim ds loc x) u
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mutual
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export
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fromPTermWith : Context' PatVar d -> Context' PatVar n ->
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PTerm -> Eff FromParserPure (Term d n)
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fromPTermWith ds ns t0 = case t0 of
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TYPE k loc =>
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pure $ TYPE k loc
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IOState loc =>
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pure $ IOState loc
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Pi pi x s t loc =>
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Pi (fromPQty pi)
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<$> fromPTermWith ds ns s
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<*> fromPTermTScope ds ns [< x] t
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<*> pure loc
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Lam x s loc =>
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Lam <$> fromPTermTScope ds ns [< x] s <*> pure loc
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App s t loc =>
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map E $ App
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<$> fromPTermElim ds ns s
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<*> fromPTermWith ds ns t
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<*> pure loc
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Sig x s t loc =>
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Sig <$> fromPTermWith ds ns s
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<*> fromPTermTScope ds ns [< x] t
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<*> pure loc
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Pair s t loc =>
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Pair <$> fromPTermWith ds ns s <*> fromPTermWith ds ns t <*> pure loc
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Case pi pair (r, ret) (CasePair (x, y) body _) loc =>
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map E $ CasePair (fromPQty pi)
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<$> fromPTermElim ds ns pair
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<*> fromPTermTScope ds ns [< r] ret
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<*> fromPTermTScope ds ns [< x, y] body
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<*> pure loc
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Fst pair loc =>
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map E $ Fst <$> fromPTermElim ds ns pair <*> pure loc
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Snd pair loc =>
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map E $ Snd <$> fromPTermElim ds ns pair <*> pure loc
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Case pi tag (r, ret) (CaseEnum arms _) loc =>
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map E $ CaseEnum (fromPQty pi)
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<$> fromPTermElim ds ns tag
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<*> fromPTermTScope ds ns [< r] ret
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<*> assert_total fromPTermEnumArms loc ds ns arms
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<*> pure loc
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NAT loc => pure $ NAT loc
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Nat n loc => pure $ Nat n loc
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Succ n loc => [|Succ (fromPTermWith ds ns n) (pure loc)|]
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STRING loc => pure $ STRING loc
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Str str loc => pure $ Str str loc
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Case pi nat (r, ret) (CaseNat zer (s, pi', ih, suc) _) loc =>
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map E $ CaseNat (fromPQty pi) (fromPQty pi')
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<$> fromPTermElim ds ns nat
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<*> fromPTermTScope ds ns [< r] ret
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<*> fromPTermWith ds ns zer
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<*> fromPTermTScope ds ns [< s, ih] suc
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<*> pure loc
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Enum strs loc => do
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let set = SortedSet.fromList strs
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unless (length strs == length (SortedSet.toList set)) $
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throw $ DuplicatesInEnumType loc strs
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pure $ Enum set loc
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Tag str loc => pure $ Tag str loc
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Eq (i, ty) s t loc =>
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Eq <$> fromPTermDScope ds ns [< i] ty
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<*> fromPTermWith ds ns s
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<*> fromPTermWith ds ns t
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<*> pure loc
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DLam i s loc =>
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DLam <$> fromPTermDScope ds ns [< i] s <*> pure loc
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DApp s p loc =>
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map E $ DApp
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<$> fromPTermElim ds ns s
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<*> fromPDimWith ds p
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<*> pure loc
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BOX q ty loc => BOX (fromPQty q) <$> fromPTermWith ds ns ty <*> pure loc
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Box val loc => Box <$> fromPTermWith ds ns val <*> pure loc
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Case pi box (r, ret) (CaseBox b body _) loc =>
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map E $ CaseBox (fromPQty pi)
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<$> fromPTermElim ds ns box
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<*> fromPTermTScope ds ns [< r] ret
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<*> fromPTermTScope ds ns [< b] body
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<*> pure loc
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V x u loc => fromV ds ns x u loc
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Ann s a loc =>
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map E $ Ann
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<$> fromPTermWith ds ns s
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<*> fromPTermWith ds ns a
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<*> pure loc
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Coe (i, ty) p q val loc =>
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map E $ Coe
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<$> fromPTermDScope ds ns [< i] ty
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<*> fromPDimWith ds p
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<*> fromPDimWith ds q
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<*> fromPTermWith ds ns val
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<*> pure loc
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Comp (i, ty) p q val r (j0, val0) (j1, val1) loc =>
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map E $ CompH'
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<$> fromPTermDScope ds ns [< i] ty
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<*> fromPDimWith ds p
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<*> fromPDimWith ds q
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<*> fromPTermWith ds ns val
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<*> fromPDimWith ds r
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<*> fromPTermDScope ds ns [< j0] val0
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<*> fromPTermDScope ds ns [< j1] val1
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<*> pure loc
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Let (qty, x, rhs) body loc =>
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Let (fromPQty qty)
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<$> fromPTermElim ds ns rhs
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<*> fromPTermTScope ds ns [< x] body
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<*> pure loc
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private
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fromPTermEnumArms : Loc -> Context' PatVar d -> Context' PatVar n ->
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List (PTagVal, PTerm) ->
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Eff FromParserPure (CaseEnumArms d n)
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fromPTermEnumArms loc ds ns arms = do
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res <- SortedMap.fromList <$>
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traverse (bitraverse (pure . fromPTagVal) (fromPTermWith ds ns)) arms
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unless (length (keys res) == length arms) $
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throw $ DuplicatesInEnumCase loc (map (fromPTagVal . fst) arms)
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pure res
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private
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fromPTermElim : Context' PatVar d -> Context' PatVar n ->
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PTerm -> Eff FromParserPure (Elim d n)
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fromPTermElim ds ns e =
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case !(fromPTermWith ds ns e) of
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E e => pure e
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t => let ctx = MkNameContexts (map fromPatVar ds) (map fromPatVar ns) in
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throw $ AnnotationNeeded t.loc ctx t
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private
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fromPTermTScope : {s : Nat} -> Context' PatVar d -> Context' PatVar n ->
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SnocVect s PatVar -> PTerm ->
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Eff FromParserPure (ScopeTermN s d n)
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fromPTermTScope ds ns xs t =
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if all isUnused xs then
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SN <$> fromPTermWith ds ns t
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else
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ST (fromSnocVect $ map fromPatVar xs) <$> fromPTermWith ds (ns ++ xs) t
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private
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fromPTermDScope : {s : Nat} -> Context' PatVar d -> Context' PatVar n ->
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SnocVect s PatVar -> PTerm ->
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Eff FromParserPure (DScopeTermN s d n)
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fromPTermDScope ds ns xs t =
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if all isUnused xs then
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SN {f = \d => Term d n} <$> fromPTermWith ds ns t
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else
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DST (fromSnocVect $ map fromPatVar xs) <$> fromPTermWith (ds ++ xs) ns t
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export %inline
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fromPTerm : PTerm -> Eff FromParserPure (Term 0 0)
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fromPTerm = fromPTermWith [<] [<]
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export
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globalPQty : Has (Except Error) fs => PQty -> Eff fs GQty
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globalPQty (PQ pi loc) = case toGlobal pi of
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Just g => pure g
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Nothing => throw $ QtyNotGlobal loc pi
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export
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fromPBaseNameNS : Has (StateL NS Mods) fs => PBaseName -> Eff fs Name
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fromPBaseNameNS name = pure $ addMods !(getAt NS) $ fromPBaseName name
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private
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liftTC : Eff TC a -> Eff FromParserPure a
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liftTC tc = runEff tc $ with Union.(::)
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[handleExcept $ \e => throw $ WrapTypeError e,
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handleReaderConst !(getAt DEFS),
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\g => send g,
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\g => send g]
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private
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addDef : Has DefsState fs => Name -> Definition -> Eff fs NDefinition
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addDef name def = do
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modifyAt DEFS $ insert name def
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pure (name, def)
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export covering
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fromPDef : PDefinition -> Eff FromParserPure NDefinition
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fromPDef def = do
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name <- fromPBaseNameNS def.name
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when !(getsAt DEFS $ isJust . lookup name) $ do
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throw $ AlreadyExists def.loc name
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gqty <- globalPQty def.qty
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let sqty = globalToSubj gqty
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case def.body of
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PConcrete ptype pterm => do
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type <- traverse fromPTerm ptype
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term <- fromPTerm pterm
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case type of
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Just type => do
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ignore $ liftTC $ do
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checkTypeC empty type Nothing
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checkC empty sqty term type
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addDef name $ mkDef gqty type term def.scheme def.main def.loc
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Nothing => do
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let E elim = term
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| _ => throw $ AnnotationNeeded term.loc empty term
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res <- liftTC $ inferC empty sqty elim
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addDef name $ mkDef gqty res.type term def.scheme def.main def.loc
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PPostulate ptype => do
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type <- fromPTerm ptype
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addDef name $ mkPostulate gqty type def.scheme def.main def.loc
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public export
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data HasFail = NoFail | AnyFail | FailWith String
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export covering
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expectFail : Loc -> Eff FromParserPure a -> Eff FromParserPure Error
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expectFail loc act = do
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gen <- getAt GEN; defs <- getAt DEFS; ns <- getAt NS; lvl <- curLevels
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case fromParserPure {ns} gen defs (singleton lvl) act of
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Left err => pure err
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Right _ => throw $ ExpectedFail loc
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export covering
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maybeFail : Monoid a =>
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PFail -> Loc -> Eff FromParserPure a -> Eff FromParserPure a
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maybeFail PSucceed _ act = act
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maybeFail PFailAny loc act = expectFail loc act $> neutral
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maybeFail (PFailMatch str) loc act = do
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err <- expectFail loc act
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let msg = runPretty $ prettyError False err {opts = Opts 10_000} -- w/e
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if str `isInfixOf` renderInfinite msg
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then pure neutral
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else throw $ WrongFail str err loc
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export covering
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fromPDecl : PDecl -> Eff FromParserPure (List NDefinition)
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fromPDecl (PDef def) =
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maybeFail def.fail def.loc $ singleton <$> fromPDef def
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fromPDecl (PNs ns) =
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maybeFail ns.fail ns.loc $
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localAt NS (<+> ns.name) $ concat <$> traverse fromPDecl ns.decls
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mutual
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export covering
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loadProcessFile : Loc -> String -> Eff FromParserIO (List NDefinition)
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loadProcessFile loc file =
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case !(loadFile loc file) of
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Just tl => concat <$> traverse fromPTopLevel tl
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Nothing => pure []
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||| populates the `defs` field of the state
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export covering
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fromPTopLevel : PTopLevel -> Eff FromParserIO (List NDefinition)
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fromPTopLevel (PD decl) = lift $ fromPDecl decl
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fromPTopLevel (PLoad file loc) = loadProcessFile loc file
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