@Nullable
private static Visibility findMaxVisibility(
@NotNull Collection<? extends CallableMemberDescriptor> descriptors) {
if (descriptors.isEmpty()) {
return Visibilities.INTERNAL;
}
Visibility maxVisibility = null;
for (CallableMemberDescriptor descriptor : descriptors) {
Visibility visibility = descriptor.getVisibility();
assert visibility != Visibilities.INHERITED
: "Visibility should have been computed for " + descriptor;
if (maxVisibility == null) {
maxVisibility = visibility;
continue;
}
Integer compareResult = Visibilities.compare(visibility, maxVisibility);
if (compareResult == null) {
maxVisibility = null;
} else if (compareResult > 0) {
maxVisibility = visibility;
}
}
// TODO: IDEA seems to issue an incorrect warning here
//noinspection ConstantConditions
if (maxVisibility == null) {
return null;
}
for (CallableMemberDescriptor descriptor : descriptors) {
Integer compareResult = Visibilities.compare(maxVisibility, descriptor.getVisibility());
if (compareResult == null || compareResult < 0) {
return null;
}
}
return maxVisibility;
}
@Nullable
public static Visibility findMaxVisibility(
@NotNull Collection<? extends CallableMemberDescriptor> descriptors) {
if (descriptors.isEmpty()) {
return Visibilities.DEFAULT_VISIBILITY;
}
Visibility maxVisibility = null;
for (CallableMemberDescriptor descriptor : descriptors) {
Visibility visibility = descriptor.getVisibility();
assert visibility != Visibilities.INHERITED
: "Visibility should have been computed for " + descriptor;
if (maxVisibility == null) {
maxVisibility = visibility;
continue;
}
Integer compareResult = Visibilities.compare(visibility, maxVisibility);
if (compareResult == null) {
maxVisibility = null;
} else if (compareResult > 0) {
maxVisibility = visibility;
}
}
if (maxVisibility == null) {
return null;
}
for (CallableMemberDescriptor descriptor : descriptors) {
Integer compareResult = Visibilities.compare(maxVisibility, descriptor.getVisibility());
if (compareResult == null || compareResult < 0) {
return null;
}
}
return maxVisibility;
}
private static boolean isVisibilityMoreSpecific(
@NotNull DeclarationDescriptorWithVisibility a,
@NotNull DeclarationDescriptorWithVisibility b) {
Integer result = Visibilities.compare(a.getVisibility(), b.getVisibility());
return result == null || result >= 0;
}