private ClassMapCachingNulls<MultiHostInjector> getInjectorMap() {
ClassMapCachingNulls<MultiHostInjector> cached = cachedInjectors;
if (cached != null) {
return cached;
}
Map<Class, MultiHostInjector[]> injectors = ContainerUtil.newHashMap();
List<MultiHostInjector> allInjectors = ContainerUtil.newArrayList();
allInjectors.addAll(myManualInjectors);
Collections.addAll(
allInjectors, MultiHostInjector.MULTIHOST_INJECTOR_EP_NAME.getExtensions(myProject));
if (LanguageInjector.EXTENSION_POINT_NAME.getExtensions().length > 0) {
allInjectors.add(PsiManagerRegisteredInjectorsAdapter.INSTANCE);
}
for (MultiHostInjector injector : allInjectors) {
for (Class<? extends PsiElement> place : injector.elementsToInjectIn()) {
LOG.assertTrue(place != null, injector);
MultiHostInjector[] existing = injectors.get(place);
injectors.put(
place,
existing == null
? new MultiHostInjector[] {injector}
: ArrayUtil.append(existing, injector));
}
}
ClassMapCachingNulls<MultiHostInjector> result =
new ClassMapCachingNulls<>(injectors, new MultiHostInjector[0], allInjectors);
cachedInjectors = result;
return result;
}
@Override
public void registerMultiHostInjector(@NotNull MultiHostInjector injector) {
for (Class<? extends PsiElement> place : injector.elementsToInjectIn()) {
LOG.assertTrue(place != null, injector);
while (true) {
MultiHostInjector[] injectors = this.injectors.get(place);
if (injectors == null) {
if (this.injectors.putIfAbsent(place, new MultiHostInjector[] {injector}) == null) break;
} else {
MultiHostInjector[] newInfos = ArrayUtil.append(injectors, injector);
if (this.injectors.replace(place, injectors, newInfos)) break;
}
}
}
cachedInjectors.clearCache();
}