started with interpreter for basic language

[mTask.git] / mTaskInterpret.icl

diff --git a/mTaskInterpret.icl b/mTaskInterpret.icl
index 52d7fd4..eaded85 100644 (file)
--- a/mTaskInterpret.icl
+++ b/mTaskInterpret.icl
@@ -5,12 +5,17 @@ import gdynamic, gCons, GenEq, StdMisc, StdArray
 import GenPrint
 import mTask
 
+import StdFile
+import StdString
+
 from StdFunc import o
 import StdTuple
 import Data.Tuple
-import Control.Monad
-import Control.Monad.State
+import StdList
 from Data.Func import $
+from Text import class Text(join), instance Text String
+
+
 
 
 toByteVal :: BC -> String
@@ -21,13 +26,45 @@ derive gPrint BC
 toReadableByteVal :: BC -> String
 toReadableByteVal a = printToString a
 
-//:: ByteCode a p = BC (BCState -> ([BC], BCState))
 instance arith ByteCode where
-       lit a = BC \_ s->([BCPush $ toCode a], s)
-       (+.) _ _ = undef
-       (-.) _ _ = undef
-       (*.) _ _ = undef
-       (/.) _ _ = undef
+       lit x = BC [BCPush $ toCode x]
+       (+.) x y = x <++> y <+-> [BCAdd]
+       (-.) x y = x <++> y <+-> [BCSub]
+       (*.) x y = x <++> y <+-> [BCMul]
+       (/.) x y = x <++> y <+-> [BCDiv]
+
+instance boolExpr ByteCode where
+       (&.) x y = x <++> y <+-> [BCAnd]
+       (|.) x y = x <++> y <+-> [BCOr]
+       Not x = x <+-> [BCNot]
+       (==.) x y = x <++> y <+-> [BCEq]
+       (!=.) x y = x <++> y <+-> [BCNeq]
+       (<.) x y = x <++> y <+-> [ BCLes]
+       (>.)  x y = x <++> y <+-> [BCGre]
+       (<=.) x y = x <++> y <+-> [BCLeq]
+       (>=.) x y = x <++> y <+-> [BCGeq]
+
+instance If ByteCode Stmt Stmt Stmt where If b t e = BCIfStmt b t e
+instance If ByteCode Stmt e Stmt where If b t e = BCIfStmt b t e
+//instance If ByteCode Stmt Stmt e where If b t e = BCIfStmt b t e
+//instance If ByteCode Stmt x y where If b t e = BCIfStmt b t e 
+instance IF ByteCode where 
+       IF b t e = BCIfStmt b t e
+       (?) b t = BCIfStmt b t $ BC []
+BCIfStmt b t e = b <+-> [BCJmpF $ length <$> t + 1] <++> t <+-> [BCJmp $ length <$> e] <++> e 
+
+instance noOp ByteCode where noOp = BC []
+
+
+(<++>) infixl 7
+(<++>) (BC x) (BC y) = BC $ x ++ y
+(<+->) infixl 7
+(<+->) (BC x) y = BC $ x ++ y
+(<-+>) infixl 7
+(<-+>) x (BC y) = BC $ x ++ y
+
+(<$>) infixl 9
+(<$>) f (BC x) = f x
 
 instance serial ByteCode where
        serialAvailable = undef
@@ -39,10 +76,20 @@ instance serial ByteCode where
 instance zero BCState where
        zero = {a=()}
 
-runByteCode :: (ByteCode Int Expr) BCState -> [BC]
-runByteCode (BC f) s = fst (f Rd s)
-
-//Start :: Main (ByteCode Int Expr)
-Start :: [BC]
 //Start :: ByteCode Int Expr
-Start = runByteCode (lit 36) zero
+//Start = (lit 36 +. lit 42) +. lit 84
+//
+derive consIndex BC
+derive consName BC
+
+Start w
+# (io, w) = stdio w
+# io = io <<< "#ifndef MTASK_H\n#define MTASK_H\n"
+# io = io <<< join "\n" ["#define " +++ consName{|*|} x +++ " " +++ toString (consIndex{|*|} x)\\x<-allBC]
+# (ok, w) = fclose (io <<< "\n#endif\n") w
+| not ok = abort "Couldn't close stdio"
+= w
+       where
+               allBC = [BCNop, BCPush "", BCPop, BCNeg, BCNot, BCAdd, BCSub, BCMul,
+                       BCDiv, BCAnd, BCOr, BCEq, BCNeq, BCLes, BCGre, BCLeq, BCGeq,
+                       BCJmp 0, BCJmpT 0, BCJmpF 0]