implementation module mTaskInterpret

//import iTasks
import gdynamic, gCons, GenEq, StdMisc, StdArray
import GenPrint
import mTask

import StdFile
import StdString

from StdFunc import o
import StdTuple
import Data.Tuple
import StdList
from Data.Func import $
from Text import class Text(join), instance Text String




toByteVal :: BC -> String
toByteVal a = undef

derive gPrint BC

toReadableByteVal :: BC -> String
toReadableByteVal a = printToString a

instance arith ByteCode where
	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
	serialPrint _ = undef
	serialPrintln _ = undef
	serialRead = undef
	serialParseInt = undef

instance zero BCState where
	zero = {a=()}

//Start :: ByteCode Int Expr
//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]