Examples of org.objectweb.asm.util.CheckClassAdapter

org.objectweb.asm.util.CheckClassAdapter
A {@link ClassAdapter ClassAdapter} that checks that its methods are properlyused. More precisely this class adapter checks each method call individually, based only on its arguments, but does not check the sequence of method calls. For example, the invalid sequence visitField(ACC_PUBLIC, "i", "I", null) visitField(ACC_PUBLIC, "i", "D", null) will not be detected by this class adapter. @author Eric Bruneton

public class AddAnnotationTransformerTest extends
    AddAnnotationAdapterTest {


  public void test() throws Exception {
    ClassWriter cw = new ClassWriter(0);
    CheckClassAdapter ca = new CheckClassAdapter(cw);
    ClassNode cn = generateBasicClass();
    new AddAnnotationTransformer(null, "Ljava/lang/Deprecated;")
        .transform(cn);
    cn.accept(ca);
    checkClass(defineClass("C", cw.toByteArray()));

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  }


  static byte[] make_tuple_class_data(int num_cells) {
    ClassWriter cww = new ClassWriter(ClassWriter.COMPUTE_FRAMES|ClassWriter.COMPUTE_MAXS);


    CheckClassAdapter cw = new CheckClassAdapter(cww);


    String this_class_name = ETUPLE_NAME + num_cells;
    String super_class_name = ETUPLE_NAME;
    cw.visit(Opcodes.V1_4, Opcodes.ACC_PUBLIC | Opcodes.ACC_SUPER,
        this_class_name, null, super_class_name, null);


    // create fields


    for (int i = 1; i <= num_cells; i++) {
      cw.visitField(Opcodes.ACC_PUBLIC, "elem" + i, ETERM_TYPE
          .getDescriptor(), null, null);
    }


    // create count method
    create_count(cw, num_cells);


    // create cast method
    create_cast(cw, num_cells);
    create_cast2(cw, num_cells);


    // create constructor
    create_constructor(cw, super_class_name);


    // create copy
    create_tuple_copy(num_cells, cw, this_class_name, super_class_name);


    create_tuple_make(num_cells, cw, this_class_name, super_class_name);
    create_tuple_make2(num_cells, cw, this_class_name, super_class_name);
    // create nth
    create_tuple_nth(num_cells, cw, this_class_name);


    // create set
    create_tuple_set(num_cells, cw, this_class_name);


    cw.visitEnd();
    byte[] data = cww.toByteArray();


    // dump(this_class_name, data);


    return data;

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        if (!m_alreadyManipulated) {
            InputStream is2 = new ByteArrayInputStream(origin);
            ClassReader reader = new ClassReader(is2);
            ClassWriter writer = new ClassLoaderAwareClassWriter(ClassWriter.COMPUTE_FRAMES, m_className, m_superClass,
                    m_classLoader);
            ClassManipulator process = new ClassManipulator(new CheckClassAdapter(writer, false), this);
            if (m_version >= Opcodes.V1_6) {
                reader.accept(process, ClassReader.EXPAND_FRAMES);
            } else {
                reader.accept(process, 0);
            }

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        ClassNode ca = new ClassNode() {
            public void visitEnd() {
                //accept(cv);
            }
        };
        cr.accept(new CheckClassAdapter(ca), ClassWriter.COMPUTE_MAXS);
        boolean failed = false;


        List methods = ca.methods;
        for (int i = 0; i < methods.size(); ++i) {
            MethodNode method = (MethodNode) methods.get(i);

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 */
public final class Debugs {


  public static void debugByteCode(ClassDefinition classDefinition, PrintWriter writer) {
    ClassReader reader = new ClassReader(classDefinition.getBytecode());
    reader.accept(new CheckClassAdapter(new TraceClassVisitor(writer)), 0);


    File file = new File("/tmp/" + classDefinition.getInternalName() + ".class");
    file.getParentFile().mkdirs();
    writer.println(file);
    writer.flush();

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        ClassNode ca = new ClassNode() {
            public void visitEnd() {
                //accept(cv);
            }
        };
        cr.accept(new CheckClassAdapter(ca), true);
        boolean failed = false;


        List methods = ca.methods;
        for (int i = 0; i < methods.size(); ++i) {
            MethodNode method = (MethodNode) methods.get(i);

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    }


    @SuppressWarnings("unchecked")
  public Class<T> generate() {
      ClassWriter out = new ClassWriter(ClassWriter.COMPUTE_MAXS);
      CheckClassAdapter writer = new CheckClassAdapter(out);
      
    int offset = 0;
      declareClass(writer);
      declareConstructor(writer);
      for (Method getter : inspector.getters) {
        offset = declareField(getter, writer, offset);
      }
      
      writer.visitEnd();
      
        return (Class<T>) new GeneratedClassLoader(options).defineClass(implementationName, out);
    }

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    }


    @SuppressWarnings("unchecked")
  public Class<I> generate() {
      ClassWriter out = new ClassWriter(ClassWriter.COMPUTE_MAXS);
      CheckClassAdapter writer = new CheckClassAdapter(out);
    declareClass(writer);
      declareConstructor(writer);
        declareAccessors(writer);
        customisation.customise(writer);
        return finish(out);

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 */
public final class Debugs {


  public static void debugByteCode(ClassDefinition classDefinition, PrintWriter writer) {
    ClassReader reader = new ClassReader(classDefinition.getBytecode());
    reader.accept(new CheckClassAdapter(new TraceClassVisitor(writer)), 0);


    File file = new File("/tmp/" + classDefinition.getInternalName() + ".class");
    file.getParentFile().mkdirs();
    writer.println(file);
    writer.flush();

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        ClassReader cr = new ClassReader(bytecode);
                
        ClassNode classNode = new ClassNode();
        final int flags = 0;  // Don't skip anything.
        cr.accept(new CheckClassAdapter(classNode), flags);
        
        List<?> methods = classNode.methods;
        for (int i = 0; i < methods.size(); ++i) {
            MethodNode method = (MethodNode)methods.get(i);
            if (method.instructions.size() > 0) {

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