@Override
 public Object transform(final Object value) {
   if (value instanceof Method) {
     return ReflectUtils.getMethodInfo((Method) value);
   } else if (value instanceof Constructor) {
     return ReflectUtils.getMethodInfo((Constructor) value);
   } else {
     throw new IllegalArgumentException("cannot get method info for " + value);
   }
 }
Exemple #2
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 private void generateSet(final Class target, final Method[] setters) {
     // setPropertyValues
     CodeEmitter e = begin_method(Constants.ACC_PUBLIC, SET_PROPERTY_VALUES, null);
     if (setters.length > 0) {
         Local index = e.make_local(Type.INT_TYPE);
         e.push(0);
         e.store_local(index);
         e.load_arg(0);
         e.checkcast(Type.getType(target));
         e.load_arg(1);
         Block handler = e.begin_block();
         int lastIndex = 0;
         for (int i = 0; i < setters.length; i++) {
             if (setters[i] != null) {
                 MethodInfo setter = ReflectUtils.getMethodInfo(setters[i]);
                 int diff = i - lastIndex;
                 if (diff > 0) {
                     e.iinc(index, diff);
                     lastIndex = i;
                 }
                 e.dup2();
                 e.aaload(i);
                 e.unbox(setter.getSignature().getArgumentTypes()[0]);
                 e.invoke(setter);
             }
         }
         handler.end();
         e.return_value();
         e.catch_exception(handler, Constants.TYPE_THROWABLE);
         e.new_instance(BULK_BEAN_EXCEPTION);
         e.dup_x1();
         e.swap();
         e.load_local(index);
         e.invoke_constructor(BULK_BEAN_EXCEPTION, CSTRUCT_EXCEPTION);
         e.athrow();
     } else {
         e.return_value();
     }
     e.end_method();
 }
Exemple #3
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 private void generateGet(final Class target, final Method[] getters) {
     CodeEmitter e = begin_method(Constants.ACC_PUBLIC, GET_PROPERTY_VALUES, null);
     if (getters.length >= 0) {
         e.load_arg(0);
         e.checkcast(Type.getType(target));
         Local bean = e.make_local();
         e.store_local(bean);
         for (int i = 0; i < getters.length; i++) {
             if (getters[i] != null) {
                 MethodInfo getter = ReflectUtils.getMethodInfo(getters[i]);
                 e.load_arg(1);
                 e.push(i);
                 e.load_local(bean);
                 e.invoke(getter);
                 e.box(getter.getSignature().getReturnType());
                 e.aastore();
             }
         }
     }
     e.return_value();
     e.end_method();
 }
    public void generateClass(ClassVisitor v) throws NoSuchMethodException {
      Method proxy = ReflectUtils.findInterfaceMethod(iface);
      final Method method = targetClass.getMethod(methodName, proxy.getParameterTypes());
      if (!proxy.getReturnType().isAssignableFrom(method.getReturnType())) {
        throw new IllegalArgumentException("incompatible return types");
      }

      MethodInfo methodInfo = ReflectUtils.getMethodInfo(method);

      boolean isStatic = TypeUtils.isStatic(methodInfo.getModifiers());
      if ((target == null) ^ isStatic) {
        throw new IllegalArgumentException(
            "Static method " + (isStatic ? "not " : "") + "expected");
      }

      ClassEmitter ce = new ClassEmitter(v);
      CodeEmitter e;
      ce.begin_class(
          Constants.V1_2,
          Constants.ACC_PUBLIC,
          getClassName(),
          METHOD_DELEGATE,
          new Type[] {Type.getType(iface)},
          Constants.SOURCE_FILE);
      ce.declare_field(Constants.PRIVATE_FINAL_STATIC, "eqMethod", Constants.TYPE_STRING, null);
      EmitUtils.null_constructor(ce);

      // generate proxied method
      MethodInfo proxied = ReflectUtils.getMethodInfo(iface.getDeclaredMethods()[0]);
      int modifiers = Constants.ACC_PUBLIC;
      if ((proxied.getModifiers() & Constants.ACC_VARARGS) == Constants.ACC_VARARGS) {
        modifiers |= Constants.ACC_VARARGS;
      }
      e = EmitUtils.begin_method(ce, proxied, modifiers);
      e.load_this();
      e.super_getfield("target", Constants.TYPE_OBJECT);
      e.checkcast(methodInfo.getClassInfo().getType());
      e.load_args();
      e.invoke(methodInfo);
      e.return_value();
      e.end_method();

      // newInstance
      e = ce.begin_method(Constants.ACC_PUBLIC, NEW_INSTANCE, null);
      e.new_instance_this();
      e.dup();
      e.dup2();
      e.invoke_constructor_this();
      e.getfield("eqMethod");
      e.super_putfield("eqMethod", Constants.TYPE_STRING);
      e.load_arg(0);
      e.super_putfield("target", Constants.TYPE_OBJECT);
      e.return_value();
      e.end_method();

      // static initializer
      e = ce.begin_static();
      e.push(methodInfo.getSignature().toString());
      e.putfield("eqMethod");
      e.return_value();
      e.end_method();

      ce.end_class();
    }