cabal: bump data-default dependency to 0.5.0.

[hs-java.git] / TestGen.hs

diff --git a/TestGen.hs b/TestGen.hs
index c0635252852c296604dfecb364ccefd5a3a7d7a2..9d1bcd8caa43ae249056e1978970aee27106c8eb 100644 (file)
--- a/TestGen.hs
+++ b/TestGen.hs
@@ -1,64 +1,70 @@
-{-# LANGUAGE OverloadedStrings #-}
+{-# LANGUAGE OverloadedStrings, FlexibleContexts #-}
 
+import Control.Monad.Exception
 import qualified Data.ByteString.Lazy as B
 
-import JVM.Types
 import JVM.ClassFile
 import JVM.Converter
 import JVM.Assembler
-import JVM.Generator
-import JVM.Generator.Instructions
+import JVM.Builder
+import JVM.Exceptions
+import Java.ClassPath
 
-initNT :: NameType Method
-initNT = NameType "<init>" $ MethodSignature [] ReturnsVoid
+import qualified Java.Lang
+import qualified Java.IO
 
-helloNT :: NameType Method
-helloNT = NameType "hello" $ MethodSignature [IntType] ReturnsVoid
-
-printlnNT :: NameType Method
-printlnNT = NameType "println" $ MethodSignature [ObjectType "java/lang/String"] ReturnsVoid
-
-outNT :: NameType Field
-outNT = NameType "out" $ ObjectType "java/io/PrintStream"
-
-valueOfNT :: NameType Method
-valueOfNT = NameType "valueOf" $ MethodSignature [IntType] (Returns $ ObjectType "java/lang/Integer")
+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 "."
 
-printfNT :: NameType Method
-printfNT = NameType "printf" $ MethodSignature [ObjectType "java/lang/String",
-                                                Array Nothing $ ObjectType "java/lang/Object"] (Returns $ ObjectType "java/io/PrintStream")
+  -- Load method signature: Hello.hello() from Hello.class
+  helloJava <- getClassMethod "./Hello" "hello"
 
-test :: Generate ()
-test = do
+  -- Initializer method. Just calls java.lang.Object.<init>
   newMethod [ACC_PUBLIC] "<init>" [] ReturnsVoid $ do
+      setStackSize 1
+
       aload_ I0
-      invokeSpecial "java/lang/Object" initNT
+      invokeSpecial Java.Lang.object Java.Lang.objectInit
       i0 RETURN
 
-  newMethod [ACC_PUBLIC, ACC_STATIC] "main" [Array Nothing $ ObjectType "java/lang/String"] ReturnsVoid $ do
-      iconst_5
-      invokeStatic "Test" helloNT
-      i0 RETURN
+  -- Declare hello() method and bind it's signature to hello.
+  hello <- newMethod [ACC_PUBLIC, ACC_STATIC] "hello" [IntType] ReturnsVoid $ do
+      setStackSize 8
 
-  newMethod [ACC_PUBLIC, ACC_STATIC] "hello" [IntType] ReturnsVoid $ do
-      getStaticField "java/lang/System" outNT
+      getStaticField Java.Lang.system Java.IO.out
       loadString "Здравствуй, мир!"
-      invokeVirtual "java/io/PrintStream" printlnNT
-      getStaticField "java/lang/System" outNT
+      invokeVirtual Java.IO.printStream Java.IO.println
+      getStaticField Java.Lang.system Java.IO.out
       loadString "Argument: %d\n"
       iconst_1
-      allocArray "java/lang/Object"
+      allocArray Java.Lang.object
       dup
       iconst_0
       iload_ I0
-      invokeStatic "java/lang/Integer" valueOfNT
+      invokeStatic Java.Lang.integer Java.Lang.valueOfInteger
       aastore
-      invokeVirtual "java/io/PrintStream" printfNT
+      invokeVirtual Java.IO.printStream Java.IO.printf
+      -- Call Hello.hello()
+      invokeStatic "Hello" helloJava
       pop
       i0 RETURN
 
-testClass = generate "Test" test
+  -- Main class method. 
+  newMethod [ACC_PUBLIC, ACC_STATIC] "main" [arrayOf Java.Lang.stringClass] ReturnsVoid $ do
+      setStackSize 1
+
+      iconst_5
+      -- Call previously declared method
+      invokeStatic "Test" hello
+      i0 RETURN
+
+  return ()
 
+main :: IO ()
 main = do
+  testClass <- generateIO [] "Test" test
   B.writeFile "Test.class" (encodeClass testClass)