private static boolean isSuperEventListenerAllowed(
PsiClass eventClass, PsiMethod method, MinecraftModule module) {
final PsiClass[] supers = eventClass.getSupers();
for (PsiClass aSuper : supers) {
if (module.isEventClassValid(aSuper, method)) {
return true;
}
if (isSuperEventListenerAllowed(aSuper, method, module)) {
return true;
}
}
return false;
}
private static boolean isValidInContext(@NotNull PsiElement element) {
if (!(element instanceof PsiMethod)) {
return false;
}
final Module module = ModuleUtilCore.findModuleForPsiElement(element);
if (module == null) {
return false;
}
final MinecraftModule minecraftModule = MinecraftModule.getInstance(module);
if (minecraftModule == null) {
return false;
}
if (!minecraftModule.isOfType(MixinModuleType.getInstance())) {
return false;
}
final PsiMethod method = (PsiMethod) element;
return AuthorInspection.shouldHaveAuthorTag(method);
}
@Override
public void annotate(@NotNull PsiElement element, @NotNull AnnotationHolder holder) {
if (!MinecraftSettings.Companion.getInstance().isShowEventListenerGutterIcons()) {
return;
}
// Since we want to line up with the method declaration, not the annotation
// declaration, we need to target identifiers, not just PsiMethods.
if (!(element instanceof PsiIdentifier && (element.getParent() instanceof PsiMethod))) {
return;
}
// The PsiIdentifier is going to be a method of course!
PsiMethod method = (PsiMethod) element.getParent();
if (method.hasModifierProperty(PsiModifier.ABSTRACT)) {
// I don't think any implementation allows for abstract
return;
}
PsiModifierList modifierList = method.getModifierList();
Module module = ModuleUtilCore.findModuleForPsiElement(element);
if (module == null) {
return;
}
MinecraftModule instance = MinecraftModule.getInstance(module);
if (instance == null) {
return;
}
// Since each platform has their own valid listener annotations,
// some platforms may have multiple allowed annotations for various cases
final Collection<AbstractModuleType<?>> moduleTypes = instance.getTypes();
boolean contains = false;
for (AbstractModuleType<?> moduleType : moduleTypes) {
final List<String> listenerAnnotations = moduleType.getListenerAnnotations();
for (String listenerAnnotation : listenerAnnotations) {
if (modifierList.findAnnotation(listenerAnnotation) != null) {
contains = true;
break;
}
}
}
if (!contains) {
return;
}
final PsiParameter[] parameters = method.getParameterList().getParameters();
if (parameters.length < 1) {
return;
}
final PsiParameter eventParameter = parameters[0];
if (eventParameter == null) {
// Listeners must have at least a single parameter
return;
}
// Get the type of the parameter so we can start resolving it
PsiTypeElement psiEventElement = eventParameter.getTypeElement();
if (psiEventElement == null) {
return;
}
final PsiType type = psiEventElement.getType();
// Validate that it is a class reference type, I don't know if this will work with
// other JVM languages such as Kotlin or Scala, but it might!
if (!(type instanceof PsiClassReferenceType)) {
return;
}
// And again, make sure that we can at least resolve the type, otherwise it's not a valid
// class reference.
final PsiClass eventClass = ((PsiClassReferenceType) type).resolve();
if (eventClass == null) {
return;
}
if (instance.isEventClassValid(eventClass, method)) {
return;
}
if (!instance.isStaticListenerSupported(eventClass, method)
&& method.hasModifierProperty(PsiModifier.STATIC)) {
if (method.getNameIdentifier() != null) {
holder.createErrorAnnotation(
method.getNameIdentifier(), "Event listener method must not be static");
}
}
if (!isSuperEventListenerAllowed(eventClass, method, instance)) {
holder.createErrorAnnotation(
eventParameter, instance.writeErrorMessageForEvent(eventClass, method));
}
}
