public Set<SNode> findDescendants(SNode node, Set<SNode> descendantsKnownInModel) {
if (!myFindUsagesSupported) return new HashSet<SNode>();
boolean changed = false;
if (myModelDescriptor instanceof EditableSModelDescriptor) {
changed = ((EditableSModelDescriptor) myModelDescriptor).isChanged();
}
boolean atLeastRootsLoaded =
myModelDescriptor.getLoadingState().compareTo(ModelLoadingState.ROOTS_LOADED) >= 0;
if (atLeastRootsLoaded && !changed && !descendantsKnownInModel.isEmpty())
return descendantsKnownInModel;
if (myNeedSearchForStrings
&& !myModelRootManager.containsString(myModelDescriptor, node.getId()))
return descendantsKnownInModel;
SModel model = myModelDescriptor.getSModel();
Set<SNode> result = new HashSet<SNode>();
if (model != null) {
for (SNode root : model.roots()) {
addDescendants(root, node, result);
}
}
descendantsKnownInModel.clear();
descendantsKnownInModel.addAll(result);
return descendantsKnownInModel;
}
public boolean hasImportedModel(SModelDescriptor modelDescriptor) {
if (!myFindUsagesSupported) return false;
if (myNeedSearchForStrings
&& !myModelRootManager.containsString(myModelDescriptor, modelDescriptor.toString()))
return false;
SModel model = myModelDescriptor.getSModel();
if (model == null) return false;
return SModelOperations.getImportElement(model, modelDescriptor.getSModelReference()) != null;
}
public boolean hasLanguage(Language language) {
if (!myFindUsagesSupported) return false;
if (myNeedSearchForStrings
&& !myModelRootManager.containsString(myModelDescriptor, language.getModuleFqName()))
return false;
SModel model = myModelDescriptor.getSModel();
if (model == null) return false;
return SModelOperations.hasLanguage(model, language.getModuleReference());
}