@Override
public boolean isAvailable(@NotNull Project project, Editor editor, PsiFile file) {
if (!super.isAvailable(project, editor, file) || !(file instanceof JetFile)) {
return false;
}
// When running single test 'isAvailable()' is invoked multiple times, so we need to clear
// lists.
overriddenNonOverridableMembers.clear();
containingDeclarationsNames.clear();
DeclarationDescriptor descriptor = ResolvePackage.resolveToDescriptor(element);
if (!(descriptor instanceof CallableMemberDescriptor)) return false;
for (CallableMemberDescriptor overriddenDescriptor :
getAllDeclaredNonOverridableOverriddenDescriptors((CallableMemberDescriptor) descriptor)) {
assert overriddenDescriptor.getKind() == DECLARATION : "Can only be applied to declarations.";
PsiElement overriddenMember = descriptorToDeclaration(overriddenDescriptor);
if (overriddenMember == null
|| !QuickFixUtil.canModifyElement(overriddenMember)
|| !(overriddenMember instanceof JetCallableDeclaration)) {
return false;
}
String containingDeclarationName =
overriddenDescriptor.getContainingDeclaration().getName().asString();
overriddenNonOverridableMembers.add((JetCallableDeclaration) overriddenMember);
containingDeclarationsNames.add(containingDeclarationName);
}
return overriddenNonOverridableMembers.size() > 0;
}
