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Fixed two inference bugs

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This commit is contained in:
sebastian 2023-05-13 01:40:05 +02:00
parent 8b92dd9194
commit a6ed6e589b
1 changed files with 5 additions and 5 deletions
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10
src/TypeChecker/TypeCheckerHm.hs
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@ -315,14 +315,14 @@ algoW = \case
EVar (LIdent i) -> do
var <- asks vars
case M.lookup (coerce i) var of
Just t ->
inst t >>= \x ->
return (nullSubst, (T.EVar $ coerce i, x))
Just t -> do
t <- inst t
return (nullSubst, (T.EVar $ coerce i, t))
Nothing -> do
sig <- gets sigs
case M.lookup (coerce i) sig of
Just (Just t) -> do
t <- freshen t
t <- inst t
return (nullSubst, (T.EVar $ coerce i, t))
Just Nothing -> do
fr <- fresh
@ -839,7 +839,7 @@ existInj :: (Monad m, MonadState Env m) => T.Ident -> m (Maybe Type)
existInj n = gets (M.lookup n . injections)
flattenType :: Type -> [Type]
flattenType (TFun a b) = flattenType a <> flattenType b
flattenType (TFun a b) = a : flattenType b
flattenType a = [a]
typeLength :: Type -> Int