-{-# LANGUAGE OverloadedStrings #-}
+{-# LANGUAGE OverloadedStrings, FlexibleContexts #-}
+import Control.Monad.Exception
import qualified Data.ByteString.Lazy as B
import JVM.ClassFile
import JVM.Converter
import JVM.Assembler
import JVM.Builder
+import JVM.Exceptions
import Java.ClassPath
import qualified Java.Lang
import qualified Java.IO
-test :: Generate ()
+test :: (Throws ENotFound e, Throws ENotLoaded e, Throws UnexpectedEndMethod e) => GenerateIO e ()
test = do
withClassPath $ do
-- Add current directory (with Hello.class) to ClassPath
addDirectory "."
- -- Load method signature: Hello.hello()
+ -- Load method signature: Hello.hello() from Hello.class
helloJava <- getClassMethod "./Hello" "hello"
-- Initializer method. Just calls java.lang.Object.<init>
invokeStatic Java.Lang.integer Java.Lang.valueOfInteger
aastore
invokeVirtual Java.IO.printStream Java.IO.printf
+ -- Call Hello.hello()
invokeStatic "Hello" helloJava
pop
i0 RETURN
main :: IO ()
main = do
- testClass <- generate [] "Test" test
+ testClass <- generateIO [] "Test" test
B.writeFile "Test.class" (encodeClass testClass)