/*
* Copyright 2003-2016 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 jetbrains.mps.idea.java.usages;
import com.intellij.openapi.application.QueryExecutorBase;
import com.intellij.openapi.project.DumbService;
import com.intellij.openapi.project.IndexNotReadyException;
import com.intellij.psi.PsiElement;
import com.intellij.psi.PsiMethod;
import com.intellij.psi.PsiReference;
import com.intellij.psi.impl.light.LightMethod;
import com.intellij.psi.search.GlobalSearchScope;
import com.intellij.psi.search.searches.MethodReferencesSearch.SearchParameters;
import com.intellij.util.Processor;
import jetbrains.mps.ide.findusages.view.FindUtils;
import jetbrains.mps.ide.project.ProjectHelper;
import jetbrains.mps.idea.core.psi.impl.MPSPsiNode;
import jetbrains.mps.idea.core.psi.impl.MPSPsiNodeBase;
import jetbrains.mps.idea.core.psi.impl.MPSPsiProvider;
import jetbrains.mps.idea.core.psi.impl.MPSPsiRef;
import jetbrains.mps.idea.core.usages.IdeaSearchScope;
import jetbrains.mps.progress.EmptyProgressMonitor;
import jetbrains.mps.smodel.SNodeUtil;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.mps.openapi.model.SNode;
import org.jetbrains.mps.openapi.model.SReference;
import org.jetbrains.mps.openapi.module.SModuleReference;
import org.jetbrains.mps.openapi.persistence.PersistenceFacade;
import java.util.List;
import java.util.logging.Logger;
/**
* danilla 3/6/13
*/
public class MPSMethodReferencesSearch extends QueryExecutorBase<PsiReference, SearchParameters> {
private static Logger LOG = Logger.getLogger(MPSMethodReferencesSearch.class.getName());
public MPSMethodReferencesSearch() {
// flag: requires read action
super(true);
}
@Override
public void processQuery(@NotNull final SearchParameters queryParameters, @NotNull final Processor<PsiReference> consumer) {
if (!(queryParameters.getScope() instanceof GlobalSearchScope)) {
return;
}
final GlobalSearchScope scope = (GlobalSearchScope) queryParameters.getScope();
final PsiMethod method = queryParameters.getMethod();
if (method instanceof MPSPsiNodeBase) return;
final String finder = method.isConstructor() ?
"jetbrains.mps.baseLanguage.findUsages.ConstructorUsages_Finder" :
"jetbrains.mps.baseLanguage.findUsages.BaseMethodUsages_Finder";
ProjectHelper.getModelAccess(method.getProject()).runReadAction(new Runnable() {
@Override
public void run() {
if (DumbService.getInstance(method.getProject()).isDumb()) {
return;
}
if (method instanceof LightMethod) {
if (method.getContainingClass().isEnum()
&& ("values".equals(method.getName()) || "valueOf".equals(method.getName()))) {
// TODO find usages of EnumValuesExpression and EnumValueOfExpression
}
// we don't handle light elements we don't know about
return;
}
final SNode methodNode = MPSReferenceSearch.getNodeForElement(method);
if (methodNode == null) {
return;
}
List<SNode> results;
try {
results = FindUtils.executeFinder(finder, methodNode, new IdeaSearchScope(scope), new EmptyProgressMonitor());
} catch (IndexNotReadyException e) {
// DumbService doesn't seem to work
return;
}
for (SNode usageNode : results) {
// it's a shame we get nodes and not SReferences
// doing a hack
for (SReference sref : usageNode.getReferences()) {
SNode refTarget = sref.getTargetNode();
if (refTarget == null) continue;
if (refTarget.getConcept().isSubConceptOf(SNodeUtil.concept_BaseMethodDeclaration)) {
// supposedly our reference
String role = sref.getRole();
PsiElement usagePsiElement = MPSPsiProvider.getInstance(method.getProject()).getPsi(usageNode);
if (!(usagePsiElement instanceof MPSPsiNode)) continue;
for (PsiElement e : usagePsiElement.getChildren()) {
if (!(e instanceof MPSPsiRef)) continue;
if (role.equals(((MPSPsiRef) e).getRole())) {
consumer.process(e.getReference());
}
}
}
}
}
}
});
}
}