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module Main where
import Control.Monad
import Data.Char
import System.Environment
import System.Exit
import System.Process
import AST
import Compiler
import Interpreter
import Parser
import Optimiser
data ExecutionMode = EMInterpret | EMCompile
executionMode :: ExecutionMode
executionMode = EMCompile
main :: IO ()
main = do
args <- getArgs
when (length args == 0 || length args > 2)
$ die "Usage: bfcomphs <source.bf>"
let fname = head args
prog <- readFile fname >>= either die return . parseProgram
-- putStrLn $ astSuccinct prog
-- print prog
let opt = optimise prog
writeFile (fname ++ ".succinct") $ astSuccinct opt
writeFile (fname ++ ".ast") $ show opt
case executionMode of
EMInterpret -> do
input <- getContents
interpret opt (map (fromIntegral . ord) input) >>= (putStr . map (chr . fromIntegral))
EMCompile -> do
writeFile (fname ++ ".asm") $ compile opt
callProcess "yasm" ["-f", "macho64", fname ++ ".asm", "-o", fname ++ ".o"]
callProcess "gcc" [fname ++ ".o", "-o", fname ++ ".exe"]
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