Example usage for org.objectweb.asm MethodVisitor visitMaxs

List of usage examples for org.objectweb.asm MethodVisitor visitMaxs

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Introduction

In this page you can find the example usage for org.objectweb.asm MethodVisitor visitMaxs.

Prototype

public void visitMaxs(final int maxStack, final int maxLocals)

Source Link

Document

Visits the maximum stack size and the maximum number of local variables of the method.

Usage

From source file:edu.illinois.nondex.instr.PriorityBlockingQueueShufflingAdder.java

License:Open Source License

public void addToString() {
    MethodVisitor mv = super.visitMethod(Opcodes.ACC_PUBLIC, "toString", "()Ljava/lang/String;", null, null);
    mv.visitCode();/*from  w  ww . j  av  a 2 s  . c o  m*/
    Label l0 = new Label();
    Label l1 = new Label();
    Label l2 = new Label();
    mv.visitTryCatchBlock(l0, l1, l2, null);
    Label l3 = new Label();
    Label l4 = new Label();
    mv.visitTryCatchBlock(l3, l4, l2, null);
    Label l5 = new Label();
    mv.visitTryCatchBlock(l2, l5, l2, null);
    mv.visitVarInsn(Opcodes.ALOAD, 0);
    mv.visitFieldInsn(Opcodes.GETFIELD, "java/util/concurrent/PriorityBlockingQueue", "lock",
            "Ljava/util/concurrent/locks/ReentrantLock;");
    mv.visitVarInsn(Opcodes.ASTORE, 1);
    mv.visitVarInsn(Opcodes.ALOAD, 1);
    mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "java/util/concurrent/locks/ReentrantLock", "lock", "()V", false);
    mv.visitLabel(l0);
    mv.visitVarInsn(Opcodes.ALOAD, 0);
    mv.visitFieldInsn(Opcodes.GETFIELD, "java/util/concurrent/PriorityBlockingQueue", "size", "I");
    mv.visitVarInsn(Opcodes.ISTORE, 2);
    mv.visitVarInsn(Opcodes.ILOAD, 2);
    mv.visitJumpInsn(Opcodes.IFNE, l3);
    mv.visitLdcInsn("[]");
    mv.visitVarInsn(Opcodes.ASTORE, 3);
    mv.visitLabel(l1);
    mv.visitVarInsn(Opcodes.ALOAD, 1);
    mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "java/util/concurrent/locks/ReentrantLock", "unlock", "()V",
            false);
    mv.visitVarInsn(Opcodes.ALOAD, 3);
    mv.visitInsn(Opcodes.ARETURN);
    mv.visitLabel(l3);
    mv.visitFrame(Opcodes.F_APPEND, 2,
            new Object[] { "java/util/concurrent/locks/ReentrantLock", Opcodes.INTEGER }, 0, null);
    mv.visitTypeInsn(Opcodes.NEW, "java/lang/StringBuilder");
    mv.visitInsn(Opcodes.DUP);
    mv.visitMethodInsn(Opcodes.INVOKESPECIAL, "java/lang/StringBuilder", "<init>", "()V", false);
    mv.visitVarInsn(Opcodes.ASTORE, 3);
    mv.visitVarInsn(Opcodes.ALOAD, 3);
    mv.visitIntInsn(Opcodes.BIPUSH, 91);
    mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "java/lang/StringBuilder", "append",
            "(C)Ljava/lang/StringBuilder;", false);
    mv.visitInsn(Opcodes.POP);
    mv.visitVarInsn(Opcodes.ALOAD, 0);
    mv.visitFieldInsn(Opcodes.GETFIELD, "java/util/concurrent/PriorityBlockingQueue", "queue",
            "[Ljava/lang/Object;");
    mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "[Ljava/lang/Object;", "clone", "()Ljava/lang/Object;", false);
    mv.visitTypeInsn(Opcodes.CHECKCAST, "[Ljava/lang/Object;");
    mv.visitVarInsn(Opcodes.ASTORE, 4);
    mv.visitVarInsn(Opcodes.ALOAD, 4);
    mv.visitMethodInsn(Opcodes.INVOKESTATIC, "edu/illinois/nondex/shuffling/ControlNondeterminism", "shuffle",
            "([Ljava/lang/Object;)[Ljava/lang/Object;", false);
    mv.visitVarInsn(Opcodes.ASTORE, 4);
    mv.visitInsn(Opcodes.ICONST_0);
    mv.visitVarInsn(Opcodes.ISTORE, 5);
    Label l6 = new Label();
    mv.visitLabel(l6);
    mv.visitFrame(Opcodes.F_APPEND, 3,
            new Object[] { "java/lang/StringBuilder", "[Ljava/lang/Object;", Opcodes.INTEGER }, 0, null);
    mv.visitVarInsn(Opcodes.ILOAD, 5);
    mv.visitVarInsn(Opcodes.ILOAD, 2);
    Label l7 = new Label();
    mv.visitJumpInsn(Opcodes.IF_ICMPGE, l7);
    mv.visitVarInsn(Opcodes.ALOAD, 4);
    mv.visitVarInsn(Opcodes.ILOAD, 5);
    mv.visitInsn(Opcodes.AALOAD);
    mv.visitVarInsn(Opcodes.ASTORE, 6);
    mv.visitVarInsn(Opcodes.ALOAD, 3);
    mv.visitVarInsn(Opcodes.ALOAD, 6);
    mv.visitVarInsn(Opcodes.ALOAD, 0);
    Label l8 = new Label();
    mv.visitJumpInsn(Opcodes.IF_ACMPNE, l8);
    mv.visitLdcInsn("(this Collection)");
    Label l9 = new Label();
    mv.visitJumpInsn(Opcodes.GOTO, l9);
    mv.visitLabel(l8);
    mv.visitFrame(Opcodes.F_FULL, 7,
            new Object[] { "java/util/concurrent/PriorityBlockingQueue",
                    "java/util/concurrent/locks/ReentrantLock", Opcodes.INTEGER, "java/lang/StringBuilder",
                    "[Ljava/lang/Object;", Opcodes.INTEGER, "java/lang/Object" },
            1, new Object[] { "java/lang/StringBuilder" });
    mv.visitVarInsn(Opcodes.ALOAD, 6);
    mv.visitLabel(l9);
    mv.visitFrame(Opcodes.F_FULL, 7,
            new Object[] { "java/util/concurrent/PriorityBlockingQueue",
                    "java/util/concurrent/locks/ReentrantLock", Opcodes.INTEGER, "java/lang/StringBuilder",
                    "[Ljava/lang/Object;", Opcodes.INTEGER, "java/lang/Object" },
            2, new Object[] { "java/lang/StringBuilder", "java/lang/Object" });
    mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "java/lang/StringBuilder", "append",
            "(Ljava/lang/Object;)Ljava/lang/StringBuilder;", false);
    mv.visitInsn(Opcodes.POP);
    mv.visitVarInsn(Opcodes.ILOAD, 5);
    mv.visitVarInsn(Opcodes.ILOAD, 2);
    mv.visitInsn(Opcodes.ICONST_1);
    mv.visitInsn(Opcodes.ISUB);
    Label l10 = new Label();
    mv.visitJumpInsn(Opcodes.IF_ICMPEQ, l10);
    mv.visitVarInsn(Opcodes.ALOAD, 3);
    mv.visitIntInsn(Opcodes.BIPUSH, 44);
    mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "java/lang/StringBuilder", "append",
            "(C)Ljava/lang/StringBuilder;", false);
    mv.visitIntInsn(Opcodes.BIPUSH, 32);
    mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "java/lang/StringBuilder", "append",
            "(C)Ljava/lang/StringBuilder;", false);
    mv.visitInsn(Opcodes.POP);
    mv.visitLabel(l10);
    mv.visitFrame(Opcodes.F_CHOP, 1, null, 0, null);
    mv.visitIincInsn(5, 1);
    mv.visitJumpInsn(Opcodes.GOTO, l6);
    mv.visitLabel(l7);
    mv.visitFrame(Opcodes.F_CHOP, 1, null, 0, null);
    mv.visitVarInsn(Opcodes.ALOAD, 3);
    mv.visitIntInsn(Opcodes.BIPUSH, 93);
    mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "java/lang/StringBuilder", "append",
            "(C)Ljava/lang/StringBuilder;", false);
    mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "java/lang/StringBuilder", "toString", "()Ljava/lang/String;",
            false);
    mv.visitVarInsn(Opcodes.ASTORE, 5);
    mv.visitLabel(l4);
    mv.visitVarInsn(Opcodes.ALOAD, 1);
    mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "java/util/concurrent/locks/ReentrantLock", "unlock", "()V",
            false);
    mv.visitVarInsn(Opcodes.ALOAD, 5);
    mv.visitInsn(Opcodes.ARETURN);
    mv.visitLabel(l2);
    mv.visitFrame(Opcodes.F_FULL, 2, new Object[] { "java/util/concurrent/PriorityBlockingQueue",
            "java/util/concurrent/locks/ReentrantLock" }, 1, new Object[] { "java/lang/Throwable" });
    mv.visitVarInsn(Opcodes.ASTORE, 7);
    mv.visitLabel(l5);
    mv.visitVarInsn(Opcodes.ALOAD, 1);
    mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "java/util/concurrent/locks/ReentrantLock", "unlock", "()V",
            false);
    mv.visitVarInsn(Opcodes.ALOAD, 7);
    mv.visitInsn(Opcodes.ATHROW);
    mv.visitMaxs(3, 8);
    mv.visitEnd();
}

From source file:edu.illinois.nondex.instr.PriorityQueueShufflingAdder.java

License:Open Source License

public void addNext() {
    MethodVisitor mv = super.visitMethod(Opcodes.ACC_PUBLIC, "next", "()Ljava/lang/Object;", "()TE;", null);
    mv.visitCode();//from  w  w w.  j  a v  a 2s.c o  m
    mv.visitVarInsn(Opcodes.ALOAD, 0);
    mv.visitFieldInsn(Opcodes.GETFIELD, "java/util/PriorityQueue$Itr", "expectedModCount", "I");
    mv.visitVarInsn(Opcodes.ALOAD, 0);
    mv.visitFieldInsn(Opcodes.GETFIELD, "java/util/PriorityQueue$Itr", "this$0", "Ljava/util/PriorityQueue;");
    mv.visitFieldInsn(Opcodes.GETFIELD, "java/util/PriorityQueue", "modCount", "I");
    Label l0 = new Label();
    mv.visitJumpInsn(Opcodes.IF_ICMPEQ, l0);
    mv.visitTypeInsn(Opcodes.NEW, "java/util/ConcurrentModificationException");
    mv.visitInsn(Opcodes.DUP);
    mv.visitMethodInsn(Opcodes.INVOKESPECIAL, "java/util/ConcurrentModificationException", "<init>", "()V",
            false);
    mv.visitInsn(Opcodes.ATHROW);
    mv.visitLabel(l0);
    mv.visitFrame(Opcodes.F_SAME, 0, null, 0, null);
    mv.visitVarInsn(Opcodes.ALOAD, 0);
    mv.visitVarInsn(Opcodes.ALOAD, 0);
    mv.visitFieldInsn(Opcodes.GETFIELD, "java/util/PriorityQueue$Itr", "iter", "Ljava/util/Iterator;");
    mv.visitMethodInsn(Opcodes.INVOKEINTERFACE, "java/util/Iterator", "next", "()Ljava/lang/Object;", true);
    mv.visitFieldInsn(Opcodes.PUTFIELD, "java/util/PriorityQueue$Itr", "lastRetElt", "Ljava/lang/Object;");
    mv.visitVarInsn(Opcodes.ALOAD, 0);
    mv.visitInsn(Opcodes.ICONST_M1);
    mv.visitFieldInsn(Opcodes.PUTFIELD, "java/util/PriorityQueue$Itr", "lastRet", "I");
    mv.visitVarInsn(Opcodes.ALOAD, 0);
    mv.visitFieldInsn(Opcodes.GETFIELD, "java/util/PriorityQueue$Itr", "lastRetElt", "Ljava/lang/Object;");
    mv.visitInsn(Opcodes.ARETURN);
    mv.visitMaxs(2, 1);
    mv.visitEnd();
}

From source file:edu.illinois.nondex.instr.PriorityQueueShufflingAdder.java

License:Open Source License

public void addHasNext() {
    MethodVisitor mv = super.visitMethod(Opcodes.ACC_PUBLIC, "hasNext", "()Z", null, null);
    mv.visitCode();/*  ww w.  j  a va2  s. c  o  m*/
    mv.visitVarInsn(Opcodes.ALOAD, 0);
    mv.visitFieldInsn(Opcodes.GETFIELD, "java/util/PriorityQueue$Itr", "iter", "Ljava/util/Iterator;");
    mv.visitMethodInsn(Opcodes.INVOKEINTERFACE, "java/util/Iterator", "hasNext", "()Z", true);
    mv.visitInsn(Opcodes.IRETURN);
    mv.visitMaxs(1, 1);
    mv.visitEnd();
}

From source file:edu.illinois.nondex.instr.WeakHashMapShufflingAdder.java

License:Open Source License

public void addHasNext() {
    MethodVisitor mv = super.visitMethod(Opcodes.ACC_PUBLIC, "hasNext", "()Z", null, null);
    mv.visitCode();/*from  w w  w  . j av  a2s  . c o  m*/
    mv.visitVarInsn(Opcodes.ALOAD, 0);
    mv.visitFieldInsn(Opcodes.GETFIELD, "java/util/WeakHashMap$HashIterator", "iter", "Ljava/util/Iterator;");
    mv.visitMethodInsn(Opcodes.INVOKEINTERFACE, "java/util/Iterator", "hasNext", "()Z", true);
    mv.visitInsn(Opcodes.IRETURN);
    mv.visitMaxs(1, 1);
    mv.visitEnd();
}

From source file:edu.illinois.nondex.instr.WeakHashMapShufflingAdder.java

License:Open Source License

public void addNextEntry() {
    MethodVisitor mv = super.visitMethod(Opcodes.ACC_PUBLIC, "nextEntry", "()Ljava/util/WeakHashMap$Entry;",
            "()Ljava/util/WeakHashMap$Entry<TK;TV;>;", null);
    mv.visitCode();//  w w  w . ja  va  2 s .c o  m
    mv.visitVarInsn(Opcodes.ALOAD, 0);
    mv.visitFieldInsn(Opcodes.GETFIELD, "java/util/WeakHashMap$HashIterator", "this$0",
            "Ljava/util/WeakHashMap;");
    mv.visitFieldInsn(Opcodes.GETFIELD, "java/util/WeakHashMap", "modCount", "I");
    mv.visitVarInsn(Opcodes.ALOAD, 0);
    mv.visitFieldInsn(Opcodes.GETFIELD, "java/util/WeakHashMap$HashIterator", "expectedModCount", "I");
    Label l0 = new Label();
    mv.visitJumpInsn(Opcodes.IF_ICMPEQ, l0);
    mv.visitTypeInsn(Opcodes.NEW, "java/util/ConcurrentModificationException");
    mv.visitInsn(Opcodes.DUP);
    mv.visitMethodInsn(Opcodes.INVOKESPECIAL, "java/util/ConcurrentModificationException", "<init>", "()V",
            false);
    mv.visitInsn(Opcodes.ATHROW);
    mv.visitLabel(l0);
    mv.visitFrame(Opcodes.F_SAME, 0, null, 0, null);
    mv.visitVarInsn(Opcodes.ALOAD, 0);
    mv.visitVarInsn(Opcodes.ALOAD, 0);
    mv.visitFieldInsn(Opcodes.GETFIELD, "java/util/WeakHashMap$HashIterator", "iter", "Ljava/util/Iterator;");
    mv.visitMethodInsn(Opcodes.INVOKEINTERFACE, "java/util/Iterator", "next", "()Ljava/lang/Object;", true);
    mv.visitTypeInsn(Opcodes.CHECKCAST, "java/util/WeakHashMap$Entry");
    mv.visitFieldInsn(Opcodes.PUTFIELD, "java/util/WeakHashMap$HashIterator", "lastReturned",
            "Ljava/util/WeakHashMap$Entry;");
    mv.visitVarInsn(Opcodes.ALOAD, 0);
    mv.visitVarInsn(Opcodes.ALOAD, 0);
    mv.visitFieldInsn(Opcodes.GETFIELD, "java/util/WeakHashMap$HashIterator", "lastReturned",
            "Ljava/util/WeakHashMap$Entry;");
    mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "java/util/WeakHashMap$Entry", "get", "()Ljava/lang/Object;",
            false);
    mv.visitFieldInsn(Opcodes.PUTFIELD, "java/util/WeakHashMap$HashIterator", "currentKey",
            "Ljava/lang/Object;");
    mv.visitVarInsn(Opcodes.ALOAD, 0);
    mv.visitFieldInsn(Opcodes.GETFIELD, "java/util/WeakHashMap$HashIterator", "lastReturned",
            "Ljava/util/WeakHashMap$Entry;");
    mv.visitInsn(Opcodes.ARETURN);
    mv.visitMaxs(2, 1);
    mv.visitEnd();
}

From source file:edu.ubc.mirrors.holograms.HologramClassGenerator.java

License:Open Source License

@Override
public void visit(int version, int access, String name, String signature, String superName,
        String[] interfaces) {//w ww .j av  a 2 s .  c  o  m
    this.name = name;
    this.isInterface = (Opcodes.ACC_INTERFACE & access) != 0;
    this.superName = getHologramSuperclassName(isInterface, name, superName);
    interfaces = getHologramInterfaces(name, isInterface, interfaces);

    // Force everything to be public, since HologramClassLoader has to reflectively
    // construct holograms. Again, not a problem because the VM will see the original flags on the ClassMirror instead.
    // Also remove enum flags.
    int hologramAccess = forcePublic(access);
    // Also remove abstract flag. Shouldn't be necessary, but the VM (OpenJDK at least)
    // creates objects that claim to be an instance of VirtualMachineError, which is abstract.
    if (name.equals("hologram/java/lang/VirtualMachineError")) {
        hologramAccess = ~Opcodes.ACC_ABSTRACT & access;
    }

    // We need at least 1.5 to use class literal constants
    // TODO-RS: Work out a better way to interpret 45.X numbers correctly
    if (version == Opcodes.V1_1 || version < Opcodes.V1_5) {
        version = 49;
    }

    super.visit(version, hologramAccess, name, signature, this.superName, interfaces);

    if (this.name.equals(hologramThrowableType.getInternalName())) {
        // Generate aliases for the original superclass' fillInStackTrace and getStackTrace methods,
        // so we can call them in stubs without hitting hologram code.
        MethodVisitor v = super.visitMethod(Opcodes.ACC_PUBLIC, "superFillInStackTrace",
                Type.getMethodDescriptor(Type.VOID_TYPE), null, null);
        v.visitCode();
        v.visitVarInsn(Opcodes.ALOAD, 0);
        v.visitMethodInsn(Opcodes.INVOKESPECIAL, Type.getInternalName(Throwable.class), "fillInStackTrace",
                Type.getMethodDescriptor(Type.getType(Throwable.class)));
        v.visitInsn(Opcodes.RETURN);
        v.visitMaxs(1, 1);
        v.visitEnd();

        v = super.visitMethod(Opcodes.ACC_PUBLIC, "superGetStackTrace",
                Type.getMethodDescriptor(Type.getType(StackTraceElement[].class)), null, null);
        v.visitCode();
        v.visitVarInsn(Opcodes.ALOAD, 0);
        v.visitMethodInsn(Opcodes.INVOKESPECIAL, Type.getInternalName(Throwable.class), "getStackTrace",
                Type.getMethodDescriptor(Type.getType(StackTraceElement[].class)));
        v.visitInsn(Opcodes.ARETURN);
        v.visitMaxs(1, 1);
        v.visitEnd();
    }
}

From source file:edu.ubc.mirrors.holograms.HologramClassGenerator.java

License:Open Source License

@Override
public void visitEnd() {
    // Generate the static field used to store the corresponding ClassMirror
    int staticAccess = Opcodes.ACC_PUBLIC | Opcodes.ACC_FINAL | Opcodes.ACC_STATIC;
    super.visitField(staticAccess, "classMirror", classMirrorType.getDescriptor(), null, null);

    // Generate the constructor that takes a mirror instance as an Object parameter
    String constructorDesc = Type.getMethodDescriptor(Type.VOID_TYPE, Type.getType(Object.class));
    if (name.equals(getHologramType(Type.getType(Throwable.class), true).getInternalName())) {
        // This doesn't extend ObjectHologram so we have to set the field directly
        super.visitField(Opcodes.ACC_PUBLIC, "mirror", objectMirrorType.getDescriptor(), null, null);

        MethodVisitor methodVisitor = super.visitMethod(Opcodes.ACC_PUBLIC, "<init>", constructorDesc, null,
                null);//  w w w. j  a  va 2s . c om
        methodVisitor.visitCode();
        methodVisitor.visitVarInsn(Opcodes.ALOAD, 0);
        methodVisitor.visitMethodInsn(Opcodes.INVOKESPECIAL, superName, "<init>",
                Type.getMethodDescriptor(Type.VOID_TYPE));
        methodVisitor.visitVarInsn(Opcodes.ALOAD, 0);
        methodVisitor.visitVarInsn(Opcodes.ALOAD, 1);
        methodVisitor.visitTypeInsn(Opcodes.CHECKCAST, objectMirrorType.getInternalName());
        methodVisitor.visitFieldInsn(Opcodes.PUTFIELD, name, "mirror", Type.getDescriptor(ObjectMirror.class));
        methodVisitor.visitInsn(Opcodes.RETURN);
        methodVisitor.visitMaxs(2, 2);
        methodVisitor.visitEnd();

        methodVisitor = super.visitMethod(Opcodes.ACC_PUBLIC, "getMirror",
                Type.getMethodDescriptor(objectMirrorType), null, null);
        methodVisitor.visitCode();
        methodVisitor.visitVarInsn(Opcodes.ALOAD, 0);
        methodVisitor.visitFieldInsn(Opcodes.GETFIELD, name, "mirror", Type.getDescriptor(ObjectMirror.class));
        methodVisitor.visitInsn(Opcodes.ARETURN);
        methodVisitor.visitMaxs(1, 1);
        methodVisitor.visitEnd();
    } else if (!isInterface) {
        MethodVisitor methodVisitor = super.visitMethod(Opcodes.ACC_PUBLIC, "<init>", constructorDesc, null,
                null);
        methodVisitor.visitCode();
        methodVisitor.visitVarInsn(Opcodes.ALOAD, 0);
        methodVisitor.visitVarInsn(Opcodes.ALOAD, 1);
        methodVisitor.visitMethodInsn(Opcodes.INVOKESPECIAL, superName, "<init>", constructorDesc);
        methodVisitor.visitInsn(Opcodes.RETURN);
        methodVisitor.visitMaxs(2, 2);
        methodVisitor.visitEnd();
    }

    // Add a class initialization method to initialize the static fields,
    // if one doesn't exist already.
    if (!hasClinit) {
        InstructionAdapter mv = new InstructionAdapter(
                super.visitMethod(Opcodes.ACC_PUBLIC | Opcodes.ACC_STATIC, "<clinit>", "()V", null, null));
        mv.visitCode();
        HologramMethodGenerator.initializeStaticFields(Type.getObjectType(this.name), mv);
        mv.areturn(Type.VOID_TYPE);
        mv.visitMaxs(2, 2);
        mv.visitEnd();
    }

    super.visitEnd();
}

From source file:edu.ubc.mirrors.holograms.HologramClassGenerator.java

License:Open Source License

public static void generateArray(ClassVisitor visitor, HologramClassLoader loader,
        HologramClassMirror hologramClassMirror) {
    boolean isInterface = !hologramClassMirror.isImplementationClass();
    ClassMirror classMirror = hologramClassMirror.getOriginal();

    Type originalType = Reflection.typeForClassMirror(classMirror);
    Type originalElementType = originalType.getElementType();
    int dims = originalType.getDimensions();

    String internalName = getHologramType(originalType, !isInterface).getInternalName();

    ClassMirror superClassMirror = null;
    String superName = isInterface ? Type.getInternalName(Object.class)
            : Type.getInternalName(ObjectArrayHologram.class);
    Set<String> interfaces = new HashSet<String>();
    int access = Opcodes.ACC_PUBLIC | (isInterface ? Opcodes.ACC_INTERFACE : 0);

    if (originalElementType.getSort() == Type.OBJECT || originalElementType.getSort() == Type.ARRAY) {
        ClassMirror elementClass = loader.loadOriginalClassMirror(originalElementType.getClassName());
        superClassMirror = elementClass.getSuperClassMirror();

        if (isInterface) {
            if (superClassMirror != null) {
                Type superType = Reflection.makeArrayType(dims,
                        Type.getObjectType(superClassMirror.getClassName().replace('.', '/')));
                String superInterfaceName = getHologramType(superType).getInternalName();
                interfaces.add(superInterfaceName);
            }//ww  w  .  ja v  a2  s  . c o m

            for (ClassMirror interfaceMirror : elementClass.getInterfaceMirrors()) {
                Type superType = Reflection.makeArrayType(dims,
                        Type.getObjectType(interfaceMirror.getClassName().replace('.', '/')));
                String interfaceName = getHologramType(superType).getInternalName();
                interfaces.add(interfaceName);
            }

            interfaces.add(hologramType.getInternalName());

            Type nMinus1Type = Reflection.makeArrayType(dims - 1, Type.getType(Object.class));
            interfaces.add(getHologramType(nMinus1Type).getInternalName());
        }
    }
    if (!isInterface) {
        interfaces.add(getHologramType(originalType, false).getInternalName());
    }

    visitor.visit(Opcodes.V1_5, access, internalName, null, superName, interfaces.toArray(new String[0]));

    if (isInterface) {
        // Generate clone()
        String cloneDesc = Type.getMethodDescriptor(objectType);
        MethodVisitor mv = visitor.visitMethod(Opcodes.ACC_PUBLIC | Opcodes.ACC_ABSTRACT, "clone", cloneDesc,
                null, null);
        mv.visitEnd();
    } else {
        // Generate thunk constructors
        String initDesc = Type.getMethodDescriptor(Type.VOID_TYPE, Type.getType(ObjectArrayMirror.class));
        MethodVisitor mv = visitor.visitMethod(Opcodes.ACC_PUBLIC, "<init>", initDesc, null, null);
        mv.visitCode();
        mv.visitVarInsn(Opcodes.ALOAD, 0);
        mv.visitVarInsn(Opcodes.ALOAD, 1);
        mv.visitMethodInsn(Opcodes.INVOKESPECIAL, superName, "<init>", initDesc);
        mv.visitInsn(Opcodes.RETURN);
        mv.visitMaxs(2, 2);
        mv.visitEnd();

        initDesc = Type.getMethodDescriptor(Type.VOID_TYPE, Type.INT_TYPE);
        mv = visitor.visitMethod(Opcodes.ACC_PUBLIC, "<init>", initDesc, null, null);
        mv.visitCode();
        mv.visitVarInsn(Opcodes.ALOAD, 0);
        mv.visitVarInsn(Opcodes.ILOAD, 1);
        mv.visitMethodInsn(Opcodes.INVOKESPECIAL, superName, "<init>", initDesc);
        mv.visitInsn(Opcodes.RETURN);
        mv.visitMaxs(2, 2);
        mv.visitEnd();
    }

    // Generate the static field used to store the corresponding ClassMirror and the static initializer to set it
    int staticAccess = Opcodes.ACC_PUBLIC | Opcodes.ACC_FINAL | Opcodes.ACC_STATIC;
    visitor.visitField(staticAccess, "classMirror", classMirrorType.getDescriptor(), null, null);

    InstructionAdapter mv = new InstructionAdapter(
            visitor.visitMethod(Opcodes.ACC_PUBLIC | Opcodes.ACC_STATIC, "<clinit>", "()V", null, null));
    mv.visitCode();
    HologramMethodGenerator.initializeStaticFields(Type.getObjectType(internalName), mv);
    mv.areturn(Type.VOID_TYPE);
    mv.visitMaxs(2, 2);
    mv.visitEnd();

    visitor.visitEnd();
}

From source file:edu.ubc.mirrors.holograms.MainEntryAdaptor.java

License:Open Source License

@Override
public MethodVisitor visitMethod(int access, String name, String desc, String signature, String[] exceptions) {

    MethodVisitor superVisitor = super.visitMethod(access, name, desc, signature, exceptions);
    if (superVisitor != null && name.equals("main") && (Opcodes.ACC_STATIC & access) != 0
            && desc.equals(mainDesc)) {
        superVisitor.visitCode();//from w  ww.  jav  a 2 s  . co  m
        superVisitor.visitLdcInsn(Type.getObjectType(className));
        superVisitor.visitVarInsn(Opcodes.ALOAD, 0);
        superVisitor.visitMethodInsn(Opcodes.INVOKESTATIC, Type.getInternalName(ObjectHologram.class),
                "invokeHologramMainMethod", invokeHologramMainMethodDesc);
        superVisitor.visitInsn(Opcodes.RETURN);
        superVisitor.visitMaxs(2, 1);
        superVisitor.visitEnd();
        return null;
    } else {
        return superVisitor;
    }
}

From source file:edu.ubc.mirrors.raw.NativeClassGenerator.java

License:Open Source License

@Override
public void visitEnd() {
    if (!isInterface) {
        // Generate the no-argument constructor
        String constructorDesc = Type.getMethodDescriptor(Type.VOID_TYPE);
        MethodVisitor methodVisitor = super.visitMethod(Opcodes.ACC_PUBLIC, "<init>", constructorDesc, null,
                null);/*from   ww  w . j a v a2  s  .co m*/
        methodVisitor.visitCode();
        methodVisitor.visitVarInsn(Opcodes.ALOAD, 0);
        methodVisitor.visitMethodInsn(Opcodes.INVOKESPECIAL, superName, "<init>", constructorDesc);
        methodVisitor.visitInsn(Opcodes.RETURN);
        methodVisitor.visitMaxs(1, 1);
        methodVisitor.visitEnd();
    }

    super.visitEnd();
}