codegen: handle exceptions of a method

[mate.git] / Mate.hs

diff --git a/Mate.hs b/Mate.hs
index 8e63fbf578132bd2c3afeeeae57700583c3fccd8..2231a5818be418b39fd6499043eb15927ab9207a 100644 (file)
--- a/Mate.hs
+++ b/Mate.hs
@@ -3,43 +3,72 @@ module Main where
 
 import System.Environment
 import Data.Char
-import Data.String.Utils
 import Data.List
+import Data.List.Split
 import qualified Data.ByteString.Lazy as B
-
-import Text.Printf
+import Control.Monad
 
 import JVM.ClassFile
-import JVM.Converter
-import JVM.Dump
+import Java.JAR
 
 import Mate.BasicBlocks
-import Mate.X86CodeGen
 import Mate.MethodPool
 import Mate.Types
 import Mate.ClassPool
+import Mate.NativeMachine
+import Mate.Debug
+
+import Mate.GC.Boehm
 
 main ::  IO ()
 main = do
   args <- getArgs
   register_signal
-  initMethodPool
-  case args of
-    [clspath] -> do
-      let bclspath = B.pack $ map (fromIntegral . ord) clspath
+  parseArgs args False
+
+parseArgs :: [String] -> Bool -> IO ()
+parseArgs ("-jar":jarpath:_) stdcp = do
+  unless stdcp $ addClassPath "./"
+  addClassPathJAR jarpath
+  res <- readMainClass jarpath
+  case res of
+    Nothing -> error "JAR: no MainClass entry found. Try to pass the jar file via -cp instead."
+    Just mc -> do
+      let bclspath = B.pack . map (fromIntegral . ord) $ mc
       cls <- getClassFile bclspath
-      dumpClass cls
-      hmap <- parseMethod cls "main"
-      printMapBB hmap
-      case hmap of
-        Just hmap' -> do
-          let methods = classMethods cls; methods :: [Method Resolved]
-          let method = find (\x -> (methodName x) == "main") methods
-          case method of
-            Just m -> do
-              entry <- compileBB hmap' (MethodInfo "main" bclspath (methodSignature m))
-              printf "executing `main' now:\n"
-              executeFuncPtr entry
-            Nothing -> error "main not found"
-        Nothing -> error "main not found"
-    _ -> error "Usage: mate <class-file>"
+      executeMain bclspath cls
+
+parseArgs ("-cp":cps) cpset = parseArgs ("-classpath":cps) cpset
+parseArgs ("-classpath":cps:xs) False = do
+  mapM_ addStuff $ splitOn ":" cps
+  parseArgs xs True
+    where
+      addStuff :: String -> IO ()
+      addStuff x
+        | ".jar" `isSuffixOf` x = addClassPathJAR x
+        | otherwise = addClassPath $ x ++ "/"
+parseArgs ("-classpath":xs) _ = parseArgs ("-":xs) True -- usage
+parseArgs (('-':_):_) _ = error "Usage: mate [-cp|-classpath <cp1:cp2:..>] [<class-file> | -jar <jar-file>]"
+-- first argument which isn't prefixed by '-' should be a class file
+parseArgs (clspath:_) stdcp = do
+  unless stdcp $ addClassPath "./"
+  let bclspath = B.pack . map (fromIntegral . ord) $ clspath
+  cls <- getClassFile bclspath
+  executeMain bclspath cls
+parseArgs _ _ = parseArgs ["-"] False
+
+
+executeMain :: B.ByteString -> Class Direct -> IO ()
+executeMain bclspath cls = do 
+  initGC --required on some platforms. [todo bernhard: maybe this should be moved somewhere else - maybe at a global place where vm initialization takes place
+
+  let methods = classMethods cls; methods :: [Method Direct]
+  case find (\x -> methodName x == "main") methods of
+    Just m -> do
+      let mi = MethodInfo "main" bclspath $ methodSignature m
+      rawmethod <- parseMethod cls "main" $ methodSignature m
+      entry <- compileBB mi rawmethod mi
+      addMethodRef entry mi [bclspath]
+      printfInfo "executing `main' now:\n"
+      executeFuncPtr $ fst entry
+    Nothing -> error "main not found"