Merge branch 'master' of https://github.com/dopefishh/cc1516

diff --git a/sem.icl b/sem.icl
index c5e14f3..19092df 100644 (file)
--- a/sem.icl
+++ b/sem.icl
@@ -35,7 +35,7 @@ get = gets id
 getRandomStream :: Int -> [String]
 getRandomStream i = genIdents $ filter (isAlpha o toChar) (genRandInt i)
        where
-               genIdents r = let (ic, r) = splitAt 5 r in [toString ic: genIdents r]
+               genIdents r = let (ic, r2) = splitAt 5 r in [toString ic: genIdents r2]
 
 freshIdent :: Env String
 freshIdent = get >>= \(st, [ident:rest])-> put (st, rest) 
@@ -59,7 +59,7 @@ instance toString SemError where
                toString t1, ". Given: ", toString t2]
 
 sem :: AST -> SemOutput
-sem (AST vd fd) = case runStateT m ('Map'.newMap, getRandomStream 0) of
+sem (AST vd fd) = case evalStateT m ('Map'.newMap, getRandomStream 1) of
     Left e = Left [e]
     Right ((vds, fds), gamma) = Right ((AST vds fds), gamma)
 where 
@@ -105,9 +105,9 @@ typeExpr (Op2Expr p e1 BiOr e2) = unify BoolType e1 >>| unify BoolType e2
 //a
 typeExpr (Op2Expr p e1 BiCons e2) = typeExpr e1 >>= \t1-> typeExpr e2 
     >>= \t2-> unify (ListType t1) t2
-//typeExpr (FunExpr p FunCall) = undef
-typeExpr (EmptyListExpr p) = freshIdent >>= \frsh-> let t = IdType frsh in 
+typeExpr (EmptyListExpr p) = freshIdent >>= \frsh-> let t = IdType frsh in
     putIdent frsh t >>| pure t
+//typeExpr (FunExpr p FunCall) = undef
 //typeExpr (VarExpr Pos VarDef) = undef //when checking var-expr, be sure to
     //put the infered type in the context
 
@@ -127,11 +127,15 @@ instance unify Expr where
         Right t = Right t //note, t :: (Type, Gamma) 
     where m = typeExpr e >>= \tex-> unify t tex 
 
+//unify e (IdType i) = unify (IdType i) e
+    //note, don't use putIdent as that will call unify again
+    //unify (IdType i) e=:(IdType j) = modify (\(st, r)->('Map'.put j e st, r))
+
 instance unify Type where
        unify IntType IntType = pure IntType
        unify BoolType BoolType = pure BoolType
        unify CharType CharType = pure CharType
-    unify (ListType t1) (ListType t2) = unify t1 t2
+    //unify (ListType t1) (ListType t2) = unify t1 t2
        unify t1 t2 = liftT $ Left $ UnifyError zero t1 t2
 
 instance zero Pos where