private static <D extends CallableDescriptor> void collectAllOverriddenDescriptors(
@NotNull D current, @NotNull Set<D> result) {
if (result.contains(current)) return;
for (CallableDescriptor callableDescriptor : current.getOriginal().getOverriddenDescriptors()) {
@SuppressWarnings("unchecked")
D descriptor = (D) callableDescriptor;
collectAllOverriddenDescriptors(descriptor, result);
result.add(descriptor);
}
}
@NotNull
@SuppressWarnings("unchecked")
public static <D extends CallableMemberDescriptor> Set<D> getAllOverriddenDeclarations(
@NotNull D memberDescriptor) {
Set<D> result = new HashSet<D>();
for (CallableMemberDescriptor overriddenDeclaration :
memberDescriptor.getOverriddenDescriptors()) {
CallableMemberDescriptor.Kind kind = overriddenDeclaration.getKind();
if (kind == DECLARATION) {
result.add((D) overriddenDeclaration);
} else if (kind == DELEGATION || kind == FAKE_OVERRIDE || kind == SYNTHESIZED) {
// do nothing
} else {
throw new AssertionError("Unexpected callable kind " + kind);
}
result.addAll(getAllOverriddenDeclarations((D) overriddenDeclaration));
}
return result;
}
@NotNull
private static Collection<CallableMemberDescriptor>
getAllDeclaredNonOverridableOverriddenDescriptors(
@NotNull CallableMemberDescriptor callableMemberDescriptor) {
Set<CallableMemberDescriptor> result = Sets.newHashSet();
Collection<CallableMemberDescriptor> nonOverridableOverriddenDescriptors =
retainNonOverridableMembers(callableMemberDescriptor.getOverriddenDescriptors());
for (CallableMemberDescriptor overriddenDescriptor : nonOverridableOverriddenDescriptors) {
CallableMemberDescriptor.Kind kind = overriddenDescriptor.getKind();
if (kind == DECLARATION) {
result.add(overriddenDescriptor);
} else if (kind == FAKE_OVERRIDE || kind == DELEGATION) {
result.addAll(getAllDeclaredNonOverridableOverriddenDescriptors(overriddenDescriptor));
} else if (kind == SYNTHESIZED) {
// do nothing, final synthesized members can't be made open
} else {
throw new UnsupportedOperationException("Unexpected callable kind " + kind);
}
}
return result;
}