BytecodeBoundClass.java 文件源码

private static ImmutableSet<ElementType> bindTarget(AnnotationInfo annotation) {
  ImmutableSet.Builder<ElementType> result = ImmutableSet.builder();
  ElementValue val = annotation.elementValuePairs().get("value");
  switch (val.kind()) {
    case ARRAY:
      for (ElementValue element : ((ArrayValue) val).elements()) {
        if (element.kind() == Kind.ENUM) {
          bindTargetElement(result, (EnumConstValue) element);
        }
      }
      break;
    case ENUM:
      bindTargetElement(result, (EnumConstValue) val);
      break;
    default:
      break;
  }
  return result.build();
}