XAnnotationUtil.java 文件源码

public Set<ElementType> getAnnotationTargets(JvmAnnotationType annotation) {
    EList<JvmAnnotationReference> annotations = annotation.getAnnotations();
    for (JvmAnnotationReference annoRef : annotations) {
        if (Target.class.getName().equals(annoRef.getAnnotation().getIdentifier())) {
            EList<JvmAnnotationValue> values = annoRef.getValues();
            JvmAnnotationValue value = values.isEmpty() ? null : values.get(0);
            if (value instanceof JvmEnumAnnotationValue) {
                Set<ElementType> result = newHashSet();
                for (JvmEnumerationLiteral elementType : ((JvmEnumAnnotationValue) value).getValues()) {
                    final String simpleName = elementType.getSimpleName();
                    result.add(ElementType.valueOf(simpleName));
                }
                return result;
            }
        }
    }
    return emptySet();
}