Package org.objectweb.asm

Examples of org.objectweb.asm.ClassWriter.visit()

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        ClassWriter visitor = new ClassWriter(ClassWriter.COMPUTE_MAXS);
        String typeName = StringUtils.substringBeforeLast(type.getName(), ".") + ".LocationAware" + type.getSimpleName();
        Type generatedType = Type.getType("L" + typeName.replaceAll("\\.", "/") + ";");
        Type superclassType = Type.getType(type);

        visitor.visit(Opcodes.V1_5, Opcodes.ACC_PUBLIC, generatedType.getInternalName(), null,
                superclassType.getInternalName(), new String[]{Type.getType(LocationAwareException.class).getInternalName()});

        Type helperType = Type.getType(ExceptionHelper.class);
        Type throwableType = Type.getType(Throwable.class);
        Type scriptSourceType = Type.getType(ScriptSource.class);
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    private <T extends Script> Class<? extends T> generateEmptyScriptClass(Class<T> type) {
        ClassWriter visitor = new ClassWriter(ClassWriter.COMPUTE_MAXS);
        String typeName = type.getName() + "_Decorated";
        Type generatedType = Type.getType("L" + typeName.replaceAll("\\.", "/") + ";");
        Type superclassType = Type.getType(type);
        visitor.visit(Opcodes.V1_5, Opcodes.ACC_PUBLIC, generatedType.getInternalName(), null,
                superclassType.getInternalName(), new String[0]);

        // Constructor

        String constructorDescriptor = Type.getMethodDescriptor(Type.VOID_TYPE, new Type[0]);
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            interfaceNames[i] = toInternalClassName(interfaces[i]);
        }
        interfaceNames[interfaces.length] = toInternalClassName(InternalJavaProxy.class);

        // start class
        cw.visit(Opcodes.V1_3, access, name, signature, supername,
                interfaceNames);

        cw.visitField(Opcodes.ACC_PRIVATE, INVOCATION_HANDLER_FIELD_NAME,
                INVOCATION_HANDLER_TYPE.getDescriptor(), null, null).visitEnd();
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        String dir = args[1];
        String classname = pkg + "/GeneratedUnsafe";
        String classpath = dir + "/GeneratedUnsafe.class";
       
        ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_MAXS | ClassWriter.COMPUTE_FRAMES);
        cw.visit(V1_5, ACC_PUBLIC + ACC_SUPER, classname, null, p(Object.class), new String[] {p(Unsafe.class)});
        cw.visitSource("<generated>", null);
       
        SkinnyMethodAdapter method = new SkinnyMethodAdapter(cw.visitMethod(ACC_PUBLIC, "<init>", sig(void.class), null, null));
        method.start();
        method.aload(0);
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    public static Class defineImplClass(Ruby ruby, String name, String[] superTypeNames, Map<String, List<Method>> simpleToAll) {
        ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_MAXS);
       
        // construct the class, implementing all supertypes
        cw.visit(V1_5, ACC_PUBLIC | ACC_SUPER, name, null, p(Object.class), superTypeNames);
       
        // fields needed for dispatch and such
        cw.visitField(ACC_STATIC | ACC_PRIVATE, "ruby", ci(Ruby.class), null, null).visitEnd();
        cw.visitField(ACC_STATIC | ACC_PRIVATE, "rubyClass", ci(RubyClass.class), null, null).visitEnd();
        cw.visitField(ACC_PRIVATE | ACC_FINAL, "self", ci(IRubyObject.class), null, null).visitEnd();
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    public static Class defineOldStyleImplClass(Ruby ruby, String name, String[] superTypeNames, Map<String, List<Method>> simpleToAll) {
        ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_MAXS);
        String pathName = name.replace('.', '/');
       
        // construct the class, implementing all supertypes
        cw.visit(V1_5, ACC_PUBLIC | ACC_SUPER, pathName, null, p(Object.class), superTypeNames);
       
        // fields needed for dispatch and such
        cw.visitField(ACC_STATIC | ACC_PRIVATE, "ruby", ci(Ruby.class), null, null).visitEnd();
        cw.visitField(ACC_STATIC | ACC_PRIVATE, "rubyClass", ci(RubyClass.class), null, null).visitEnd();
        cw.visitField(ACC_PRIVATE | ACC_FINAL, "self", ci(IRubyObject.class), null, null).visitEnd();
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    }

    @Deprecated
    private ClassWriter createCtor(String namePath) throws Exception {
        ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_MAXS);
        cw.visit(V1_4, ACC_PUBLIC + ACC_SUPER, namePath, null, SUPER_CLASS, null);
        MethodVisitor mv = cw.visitMethod(ACC_PUBLIC, "<init>", "()V", null, null);
        mv.visitCode();
        mv.visitVarInsn(ALOAD, 0);
        mv.visitMethodInsn(INVOKESPECIAL, SUPER_CLASS, "<init>", "()V");
        Label line = new Label();
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    }

    @Deprecated
    private ClassWriter createCtorFast(String namePath) throws Exception {
        ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_MAXS);
        cw.visit(V1_4, ACC_PUBLIC + ACC_SUPER, namePath, null, FAST_SUPER_CLASS, null);
        MethodVisitor mv = cw.visitMethod(ACC_PUBLIC, "<init>", "()V", null, null);
        mv.visitCode();
        mv.visitVarInsn(ALOAD, 0);
        mv.visitMethodInsn(INVOKESPECIAL, FAST_SUPER_CLASS, "<init>", "()V");
        Label line = new Label();
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        return cw;
    }

    private ClassWriter createBlockCtor(String namePath) throws Exception {
        ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_MAXS);
        cw.visit(V1_4, ACC_PUBLIC + ACC_SUPER, namePath, null, p(AbstractCompiledBlockCallback.class), null);
        cw.visitField(ACC_PRIVATE | ACC_FINAL, "$scriptObject", ci(Object.class), null, null);
        SkinnyMethodAdapter mv = new SkinnyMethodAdapter(cw.visitMethod(ACC_PUBLIC, "<init>", sig(Void.TYPE, params(Object.class)), null, null));
        mv.start();
        mv.aload(0);
        mv.aload(1);
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        String internalClassName = Type.getInternalName(spec); // Specification class internal name.
        String[] itfs = new String[] {internalClassName};  // Implemented interface.
        String className = internalClassName + "$$Proxy"; // Unique name.
        Method[] methods = spec.getMethods(); // Method to delegate
       
        cw.visit(Opcodes.V1_3, Opcodes.ACC_PUBLIC | Opcodes.ACC_FINAL, className, null, "java/lang/Object", itfs);
        addDependencyField(cw);
        generateConstructor(cw, className);
       
        // For each method, create the delegator code.
        for (int i = 0; i < methods.length; i++) {
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