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primitive erasure implementation, dead code elimination

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This commit is contained in:
Steve Dunham
2024-11-26 14:08:57 -08:00
parent e265248b11
commit d4bcbc5949
13 changed files with 196 additions and 106 deletions
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6
src/Lib/Eval.idr
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@@ -150,7 +150,7 @@ eval env mode (Meta fc i) =
(Unsolved _ k xs _ _ _) => pure $ VMeta fc i [<]
(Solved _ k t) => pure $ t
eval env mode (Lam fc x t) = pure $ VLam fc x (MkClosure env t)
eval env mode (Pi fc x icit a b) = pure $ VPi fc x icit !(eval env mode a) (MkClosure env b)
eval env mode (Pi fc x icit rig a b) = pure $ VPi fc x icit rig !(eval env mode a) (MkClosure env b)
eval env mode (Let fc nm t u) = pure $ VLet fc nm !(eval env mode t) !(eval (VVar fc (length env) [<] :: env) mode u)
eval env mode (LetRec fc nm t u) = pure $ VLetRec fc nm !(eval (VVar fc (length env) [<] :: env) mode t) !(eval (VVar fc (length env) [<] :: env) mode u)
-- Here, we assume env has everything. We push levels onto it during type checking.
@@ -186,7 +186,7 @@ quote l (VMeta fc i sp) =
(Unsolved _ k xs _ _ _) => quoteSp l (Meta fc i) sp
(Solved _ k t) => quote l !(vappSpine t sp)
quote l (VLam fc x t) = pure $ Lam fc x !(quote (S l) !(t $$ VVar emptyFC l [<]))
quote l (VPi fc x icit a b) = pure $ Pi fc x icit !(quote l a) !(quote (S l) !(b $$ VVar emptyFC l [<]))
quote l (VPi fc x icit rig a b) = pure $ Pi fc x icit rig !(quote l a) !(quote (S l) !(b $$ VVar emptyFC l [<]))
quote l (VLet fc nm t u) = pure $ Let fc nm !(quote l t) !(quote (S l) u)
quote l (VLetRec fc nm t u) = pure $ LetRec fc nm !(quote (S l) t) !(quote (S l) u)
quote l (VU fc) = pure (U fc)
@@ -260,7 +260,7 @@ zonk top l env t = case t of
(Meta fc k) => zonkApp top l env t []
(Lam fc nm u) => Lam fc nm <$> (zonk top (S l) (VVar fc l [<] :: env) u)
(App fc t u) => zonkApp top l env t [!(zonk top l env u)]
(Pi fc nm icit a b) => Pi fc nm icit <$> zonk top l env a <*> zonkBind top l env b
(Pi fc nm icit rig a b) => Pi fc nm icit rig <$> zonk top l env a <*> zonkBind top l env b
(Let fc nm t u) => Let fc nm <$> zonk top l env t <*> zonkBind top l env u
(LetRec fc nm t u) => LetRec fc nm <$> zonkBind top l env t <*> zonkBind top l env u
(Case fc sc alts) => Case fc <$> zonk top l env sc <*> traverse (zonkAlt top l env) alts