Package org.objectweb.asm

Examples of org.objectweb.asm.MethodVisitor.visitCode()

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        String methodDescriptor = Type.getMethodDescriptor(Type.VOID_TYPE,
                new Type[]{superclassType, scriptSourceType, integerType});
        MethodVisitor methodVisitor = visitor.visitMethod(Opcodes.ACC_PUBLIC, "<init>", methodDescriptor, null,
                new String[0]);
        methodVisitor.visitCode();

        boolean noArgsConstructor;
        try {
            type.getConstructor(type);
            noArgsConstructor = false;
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        for (Method method : ExceptionHelper.class.getDeclaredMethods()) {
            // GENERATE public <type> <method>() { return helper.<method>(); }
            methodDescriptor = Type.getMethodDescriptor(Type.getType(method.getReturnType()), new Type[0]);
            methodVisitor = visitor.visitMethod(Opcodes.ACC_PUBLIC, method.getName(), methodDescriptor, null,
                    new String[0]);
            methodVisitor.visitCode();

            methodVisitor.visitVarInsn(Opcodes.ALOAD, 0);
            methodVisitor.visitFieldInsn(Opcodes.GETFIELD, generatedType.getInternalName(), "helper",
                    helperType.getDescriptor());
            methodVisitor.visitMethodInsn(Opcodes.INVOKEVIRTUAL, helperType.getInternalName(), method.getName(),
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        // Constructor

        String constructorDescriptor = Type.getMethodDescriptor(Type.VOID_TYPE, new Type[0]);
        MethodVisitor methodVisitor = visitor.visitMethod(Opcodes.ACC_PUBLIC, "<init>", constructorDescriptor, null,
                new String[0]);
        methodVisitor.visitCode();

        // super()
        methodVisitor.visitVarInsn(Opcodes.ALOAD, 0);
        methodVisitor.visitMethodInsn(Opcodes.INVOKESPECIAL, superclassType.getInternalName(), "<init>",
                constructorDescriptor);
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        // run() method

        String runDesciptor = Type.getMethodDescriptor(Type.getType(Object.class), new Type[0]);
        methodVisitor = visitor.visitMethod(Opcodes.ACC_PUBLIC, "run", runDesciptor, null, new String[0]);
        methodVisitor.visitCode();

        // return null
        methodVisitor.visitInsn(Opcodes.ACONST_NULL);

        methodVisitor.visitInsn(Opcodes.ARETURN);
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    }

    private static void genConstructor(ClassWriter cw, final String superClass) {
        MethodVisitor mv;
        mv = cw.visitMethod(Opcodes.ACC_PUBLIC, "<init>", "()V", null, null);
        mv.visitCode();
        mv.visitVarInsn(Opcodes.ALOAD, 0);
        mv.visitMethodInsn(Opcodes.INVOKESPECIAL, superClass, "<init>", "()V");
        mv.visitInsn(Opcodes.RETURN);
        mv.visitMaxs(0, 0);
        mv.visitEnd();
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    @Deprecated
    public static void genInvokeXxxWithArray(ClassWriter cw, Method method) {
        MethodVisitor mv;
        mv = cw.visitMethod(Opcodes.ACC_PUBLIC, "invoke", "(Ljava/lang/Object;[Ljava/lang/Object;)Ljava/lang/Object;", null, EXCEPTIONS);
        mv.visitCode();

        Class callClass = method.getDeclaringClass();
        boolean useInterface = callClass.isInterface();

        String type = BytecodeHelper.getClassInternalName(callClass.getName());
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              pdescb.append("Ljava/lang/Object;");

            String pdesc = pdescb.toString();

            mv = cw.visitMethod(Opcodes.ACC_PUBLIC, "invoke", "(Ljava/lang/Object;" + pdesc + ")Ljava/lang/Object;", null, EXCEPTIONS);
            mv.visitCode();

            Class callClass = method.getDeclaringClass();
            boolean useInterface = callClass.isInterface();

            String type = BytecodeHelper.getClassInternalName(callClass.getName());
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              return;

            String pdesc = pdescb.toString();

            mv = cw.visitMethod(Opcodes.ACC_PUBLIC, "invoke", "(Ljava/lang/Object;" + pdesc + ")Ljava/lang/Object;", null, EXCEPTIONS);
            mv.visitCode();

            Class callClass = method.getDeclaringClass();
            boolean useInterface = callClass.isInterface();

            String type = BytecodeHelper.getClassInternalName(callClass.getName());
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    private CallSiteGenerator () {}
   
    private static MethodVisitor writeMethod(ClassWriter cw, String name, int argumentCount, final String superClass, CachedMethod cachedMethod, String receiverType, String parameterDescription, boolean useArray) {
        MethodVisitor mv = cw.visitMethod(Opcodes.ACC_PUBLIC, "call" + name, "(L" + receiverType + ";" + parameterDescription + ")Ljava/lang/Object;", null, null);
        mv.visitCode();
       
        final Label tryStart = new Label();
        mv.visitLabel(tryStart);
       
        // call for checking if method is still valid
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    }

    private static void genConstructor(ClassWriter cw, final String superClass, String internalName) {
        MethodVisitor mv;
        mv = cw.visitMethod(Opcodes.ACC_PUBLIC, "<init>", "(Lorg/codehaus/groovy/runtime/callsite/CallSite;Lgroovy/lang/MetaClassImpl;Lgroovy/lang/MetaMethod;[Ljava/lang/Class;Ljava/lang/reflect/Constructor;)V", null, null);
        mv.visitCode();
        mv.visitVarInsn(Opcodes.ALOAD, 0);
        mv.visitVarInsn(Opcodes.ALOAD, 1);
        mv.visitVarInsn(Opcodes.ALOAD, 2);
        mv.visitVarInsn(Opcodes.ALOAD, 3);
        mv.visitVarInsn(Opcodes.ALOAD, 4);
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