| /* |
| * 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; |
| |
| import com.intellij.util.ProcessingContext; |
| import org.jetbrains.annotations.NotNull; |
| |
| /** |
| * Allows to inject additional references into an element that supports reference contributors. |
| * Register it via {@link PsiReferenceContributor} or {@link PsiReferenceProviderBean#EP_NAME} |
| * |
| * Note that, if you're implementing a custom language, it won't by default support references registered through PsiReferenceContributor. |
| * If you want to support that, you need to call |
| * {@link com.intellij.psi.impl.source.resolve.reference.ReferenceProvidersRegistry#getReferencesFromProviders(PsiElement)} from your implementation |
| * of PsiElement.getReferences(). |
| * |
| * @author ik |
| */ |
| public abstract class PsiReferenceProvider { |
| public static final PsiReferenceProvider[] EMPTY_ARRAY = new PsiReferenceProvider[0]; |
| |
| @NotNull |
| public abstract PsiReference[] getReferencesByElement(@NotNull PsiElement element, @NotNull final ProcessingContext context); |
| |
| public boolean acceptsHints(@NotNull final PsiElement element, @NotNull PsiReferenceService.Hints hints) { |
| final PsiElement target = hints.target; |
| return target == null || acceptsTarget(target); |
| } |
| public boolean acceptsTarget(@NotNull PsiElement target) { |
| return true; |
| } |
| |
| } |