-build :: AST.Expr -> IRBuilderT ModuleBuilder Operand
-build (AST.Num a) = pure $ ConstantOperand (Float (Single a))
-build (AST.BinOp op a b) = do
- va <- build a
- vb <- build b
+buildAST :: AST.AST -> ModuleBuilder Operand
+buildAST (AST.Function nameStr paramStrs body) = do
+ let name = fromString nameStr
+ function name params float $ \binds -> do
+ let bindMap = Map.fromList (zip paramStrs binds)
+ buildExpr bindMap body >>= ret
+ where params = zip (repeat float) (map fromString paramStrs)
+buildAST (AST.Eval e) =
+ function "expr" [] float $ \_ -> buildExpr mempty e >>= ret
+
+buildExpr :: Map.Map String Operand -> AST.Expr -> IRBuilderT ModuleBuilder Operand
+buildExpr _ (AST.Num a) = pure $ ConstantOperand (Float (Single a))
+buildExpr binds (AST.Var name) = pure $ binds Map.! name
+
+buildExpr binds (AST.Call nameStr params) = do
+ paramOps <- mapM (buildExpr binds) params
+ let name = fromString nameStr
+ -- get a pointer to the function
+ typ = FunctionType float (replicate (length params) float) False
+ ptrTyp = Type.PointerType typ (AddrSpace 0)
+ ref = GlobalReference ptrTyp name
+ call (ConstantOperand ref) (zip paramOps (repeat []))
+
+buildExpr binds (AST.BinOp op a b) = do
+ va <- buildExpr binds a
+ vb <- buildExpr binds b