private boolean isAccessible(
RefJavaElement to, @PsiModifier.ModifierConstant String accessModifier) {
for (RefElement refElement : to.getInReferences()) {
if (!isAccessibleFrom(refElement, to, accessModifier)) return false;
}
if (to instanceof RefMethod) {
RefMethod refMethod = (RefMethod) to;
if (refMethod.isAbstract()
&& (refMethod.getDerivedMethods().isEmpty()
|| refMethod.getAccessModifier() == PsiModifier.PRIVATE)) return false;
for (RefMethod refOverride : refMethod.getDerivedMethods()) {
if (!isAccessibleFrom(refOverride, to, accessModifier)) return false;
}
for (RefMethod refSuper : refMethod.getSuperMethods()) {
if (RefJavaUtil.getInstance().compareAccess(refSuper.getAccessModifier(), accessModifier)
> 0) return false;
}
}
if (to instanceof RefClass) {
RefClass refClass = (RefClass) to;
for (RefClass subClass : refClass.getSubClasses()) {
if (!isAccessibleFrom(subClass, to, accessModifier)) return false;
}
List children = refClass.getChildren();
if (children != null) {
for (Object refElement : children) {
if (!isAccessible((RefJavaElement) refElement, accessModifier)) return false;
}
}
for (final RefElement refElement : refClass.getInTypeReferences()) {
if (!isAccessibleFrom(refElement, refClass, accessModifier)) return false;
}
List<RefJavaElement> classExporters = ((RefClassImpl) refClass).getClassExporters();
if (classExporters != null) {
for (RefJavaElement refExporter : classExporters) {
if (getAccessLevel(accessModifier) < getAccessLevel(refExporter.getAccessModifier()))
return false;
}
}
}
return true;
}
