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-rw-r--r--ast/CC/Source.hs7
-rw-r--r--ast/CC/Typed.hs8
2 files changed, 15 insertions, 0 deletions
diff --git a/ast/CC/Source.hs b/ast/CC/Source.hs
index 080b850..c10f910 100644
--- a/ast/CC/Source.hs
+++ b/ast/CC/Source.hs
@@ -1,5 +1,7 @@
module CC.Source(module CC.Source, module CC.Types) where
+import Data.List
+
import CC.Pretty
import CC.Types
@@ -18,11 +20,13 @@ data Def = Function (Maybe Type)
data Type = TFun Type Type
| TInt
+ | TTup [Type]
deriving (Show, Read)
data Expr = Lam SourceRange [(Name, SourceRange)] Expr
| Call SourceRange Expr Expr
| Int SourceRange Int
+ | Tup SourceRange [Expr]
| Var SourceRange Name
| Annot SourceRange Expr Type
deriving (Show, Read)
@@ -31,10 +35,13 @@ instance Pretty Type where
prettyPrec _ TInt = "Int"
prettyPrec p (TFun a b) =
precParens p 2 (prettyPrec 3 a ++ " -> " ++ prettyPrec 2 b)
+ prettyPrec _ (TTup ts) =
+ "(" ++ intercalate ", " (map pretty ts) ++ ")"
instance HasRange Expr where
range (Lam sr _ _) = sr
range (Call sr _ _) = sr
range (Int sr _) = sr
+ range (Tup sr _) = sr
range (Var sr _) = sr
range (Annot sr _ _) = sr
diff --git a/ast/CC/Typed.hs b/ast/CC/Typed.hs
index 535fd31..53caa29 100644
--- a/ast/CC/Typed.hs
+++ b/ast/CC/Typed.hs
@@ -3,6 +3,8 @@ module CC.Typed(
module CC.Types
) where
+import Data.List
+
import CC.Pretty
import CC.Types
@@ -15,12 +17,14 @@ data DefT = DefT Name ExprT
data TypeT = TFunT TypeT TypeT
| TIntT
+ | TTupT [TypeT]
| TyVar Int
deriving (Show, Read)
data ExprT = LamT TypeT Occ ExprT
| CallT TypeT ExprT ExprT
| IntT Int
+ | TupT [ExprT]
| VarT Occ
deriving (Show, Read)
@@ -31,12 +35,15 @@ exprType :: ExprT -> TypeT
exprType (LamT typ _ _) = typ
exprType (CallT typ _ _) = typ
exprType (IntT _) = TIntT
+exprType (TupT es) = TTupT (map exprType es)
exprType (VarT (Occ _ typ)) = typ
instance Pretty TypeT where
prettyPrec _ TIntT = "Int"
prettyPrec p (TFunT a b) =
precParens p 2 (prettyPrec 3 a ++ " -> " ++ prettyPrec 2 b)
+ prettyPrec _ (TTupT ts) =
+ "(" ++ intercalate ", " (map pretty ts) ++ ")"
prettyPrec _ (TyVar i) = 't' : show i
instance Pretty ExprT where
@@ -48,6 +55,7 @@ instance Pretty ExprT where
precParens p 2 $
prettyPrec 3 e1 ++ " " ++ prettyPrec 3 e2 ++ " :: " ++ pretty ty
prettyPrec _ (IntT i) = show i
+ prettyPrec _ (TupT es) = "(" ++ intercalate ", " (map pretty es) ++ ")"
prettyPrec p (VarT (Occ n t)) =
precParens p 2 $
show n ++ " :: " ++ pretty t