/*
* Copyright 2000-2009 JetBrains s.r.o.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.intellij.psi.impl.source.resolve.reference;
import com.intellij.lang.Language;
import com.intellij.openapi.components.ServiceManager;
import com.intellij.openapi.progress.ProgressIndicatorProvider;
import com.intellij.psi.*;
import com.intellij.util.ProcessingContext;
import org.jetbrains.annotations.NotNull;
/**
* Created by IntelliJ IDEA.
* User: ik
* Date: 27.03.2003
* Time: 17:13:45
* To change this template use Options | File Templates.
*/
public abstract class ReferenceProvidersRegistry {
public final static PsiReferenceProvider NULL_REFERENCE_PROVIDER = new PsiReferenceProvider() {
@NotNull
@Override
public PsiReference[] getReferencesByElement(@NotNull PsiElement element, @NotNull ProcessingContext context) {
return PsiReference.EMPTY_ARRAY;
}
};
public static ReferenceProvidersRegistry getInstance() {
return ServiceManager.getService(ReferenceProvidersRegistry.class);
}
public abstract PsiReferenceRegistrar getRegistrar(Language language);
/**
* @see #getReferencesFromProviders(com.intellij.psi.PsiElement)
*/
@Deprecated
public static PsiReference[] getReferencesFromProviders(PsiElement context, @NotNull Class clazz) {
return getReferencesFromProviders(context, PsiReferenceService.Hints.NO_HINTS);
}
public static PsiReference[] getReferencesFromProviders(PsiElement context) {
return getReferencesFromProviders(context, PsiReferenceService.Hints.NO_HINTS);
}
public static PsiReference[] getReferencesFromProviders(PsiElement context, @NotNull PsiReferenceService.Hints hints) {
ProgressIndicatorProvider.checkCanceled();
assert context.isValid() : "Invalid context: " + context;
ReferenceProvidersRegistry registry = getInstance();
return registry.doGetReferencesFromProviders(context, hints);
}
protected abstract PsiReference[] doGetReferencesFromProviders(PsiElement context, PsiReferenceService.Hints hints);
}