Added generationf or expressions, how to deal with lists and tuples?

[cc1516.git] / gen.icl

diff --git a/gen.icl b/gen.icl
index cd01d95..d0ec628 100644 (file)
--- a/gen.icl
+++ b/gen.icl
@@ -6,30 +6,36 @@ import StdList
 import StdOverloaded
 import StdString
 from StdFunc import id
+import StdTuple
 
 import Data.Func
 import qualified Data.Map as Map
 import Data.List
 import Data.Either
+import Data.Tuple
 import Data.Functor
+import Data.Monoid
 import Control.Applicative
 import Control.Monad
-import Control.Monad.State
 import Control.Monad.Trans
 from Text import class Text(concat), instance Text String
 
 import AST
+import RWST
 
 //Instruction is an instruction, with possible arguments and a possible comment
 //Or is a label
+TRUE :== -1
+FALSE :== 0
 :: Instr    = Instr String [Arg] String
-            | Label String
-:: Arg = L String | Lit Int
+            | Lab String
+:: Label :== String
+:: Arg = L Label | Lit Int
 :: SSMProgram :== [Instr]
 
 
 gen :: AST -> String
-gen _ = toString    [Label "Test"
+gen _ = toString    [Lab "Test"
                     ,Instr "ldc" [Lit 1] "Eerste instructie"
                     ,Instr "ldc" [Lit 2] "Tweede instructie"]
 
@@ -44,35 +50,73 @@ gen _ = toString    [Label "Test"
 :: GenMap :== 'Map'.Map String LoadPlace
 :: LoadPlace    = LDA Int | LDC Int | LDH Int | LDL Int 
                 | LDR Int | LDS Int
-:: Gen a :== StateT (GenMap) (Either GenError) a
+                | FUNC Label
+:: Gen a :== RWST [Int] SSMProgram (GenMap, [Label]) (Either GenError) a
 
 genMap :: Gen GenMap
-genMap = gets id
+genMap = gets fst
 
-class g a :: a -> Gen SSMProgram
+class g a :: a -> Gen ()
 
 instance g Expr where
-    g (VarExpr _ (VarDef k fs)) = pure <$> load k //note: pure is pure for list, i.e. []
+    g (VarExpr _ (VarDef k fs)) = load k >>= \instr-> tell [instr] //note: pure is pure for list, i.e. []
+    g (IntExpr _ i) = loadP (LDC i) >>= \instr-> tell [instr]
+    g (CharExpr _ c) = undef //how to deal with strings?
+    g (BoolExpr _ True) = loadP (LDC TRUE) >>= \instr-> tell [instr]
+    g (BoolExpr _ False) = loadP (LDC FALSE) >>= \instr-> tell [instr]
+    g (Op2Expr _ e1 op e2) = g e1 >>| g e2 >>| tell [Instr (op2ins op) [] ""]
+    g (Op1Expr _ UnNegation e) = g e >>| tell [Instr "not" [] ""]
+    g (Op1Expr _ UnMinus e) = g e >>| tell [Instr "neg" [] ""]
+    g (EmptyListExpr _) = abort "Shit, empty list expr"
+    g (TupleExpr p (e1,e2)) = abort "How to deal with tuples?"
+    g (FunExpr _ k es fs) = mapM g es >>| jump "bra" k >>= \instr-> tell [instr]
+
+op2ins :: Op2 -> String
+op2ins op = case op of
+    BiPlus = "add"
+    BiMinus = "sub"
+    BiTimes = "mul"
+    BiDivide = "div" 
+    BiMod = "mod"
+    BiEquals = "eq"
+    BiLesser = "lt"
+    BiGreater = "gt"
+    BiLesserEq = "le"
+    BiGreaterEq = "ge"
+    BiUnEqual = "ne"
+    BiAnd = "and"
+    BiOr = "or"
+    BiCons = abort "Shit, Cons, how to deal with this?"
 
 load :: String -> Gen Instr
 load k = genMap >>= \g-> case 'Map'.member k g of
     False = liftT (Left $ Error $ concat ["PANIC: ", k, " not found in variable mapping"])
-    True = pure (loadP $ 'Map'.find k g)
+    True = loadP $ 'Map'.find k g
 
-loadP :: LoadPlace -> Instr
-loadP pl = let (instr, arg) = dec pl in Instr instr [Lit arg] ""
+loadP :: LoadPlace -> Gen Instr
+loadP pl = dec pl >>= \(instr, arg)-> pure $ Instr instr [arg] ""
 where
-    dec (LDA i) = ("lda", i)
-    dec (LDC i) = ("ldc", i)
-    dec (LDH i) = ("ldh", i)
-    dec (LDL i) = ("ldl", i)
-    dec (LDR i) = ("ldr", i)
-    dec (LDS i) = ("lds", i)
+    dec (LDA i) = pure ("lda", Lit i)
+    dec (LDC i) = pure ("ldc", Lit i)
+    dec (LDH i) = pure ("ldh", Lit i)
+    dec (LDL i) = pure ("ldl", Lit i)
+    dec (LDR i) = pure ("ldr", Lit i)
+    dec (LDS i) = pure ("lds", Lit i)
+    dec _       = liftT (Left $ Error "PANIC: trying to load non adres")
+
+//Instruction (String), key of function to jump to    
+jump :: String String -> Gen Instr
+jump instr k = genMap >>= \g-> case 'Map'.member k g of
+    False = liftT (Left $ Error $ concat ["PANIC: ", k, " not found as function"])
+    True = dec ('Map'.find k g) >>= \lbl-> pure $ Instr instr [lbl] k 
+where
+    dec (FUNC l) = pure (L l)
+    dec _ = liftT (Left $ Error "PANIC: trying to jump to non label")
 
 class print a :: a -> [String]
 
 instance print Instr where
-    print (Label l) = [l, ":", "\n"]
+    print (Lab l) = [l, ":", "\n"]
     print (Instr i args com) = ["\t", i] ++ print args ++ [" ;", com, "\n"]
 
 instance print [Arg] where
@@ -83,7 +127,4 @@ instance toString Arg where
     toString (Lit int) = toString int
 
 instance toString SSMProgram where
-    toString p = concat $ intersperse " " $ map (\i-> concat $ intersperse " " $ print i) p
-
-instance MonadTrans (StateT GenMap) where
-    liftT m = StateT \s-> m >>= \a-> return (a, s)
\ No newline at end of file
+    toString p = concat $ intersperse " " $ map (\i-> concat $ intersperse " " $ print i) p
\ No newline at end of file