/*
* 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.refactoring;
import com.intellij.psi.PsiClass;
import com.intellij.psi.PsiElement;
import com.intellij.psi.PsiFile;
import com.intellij.psi.PsiImportStaticReferenceElement;
import com.intellij.psi.PsiImportStaticStatement;
import com.intellij.psi.PsiMember;
import com.intellij.psi.PsiReference;
import com.intellij.refactoring.move.moveMembers.MoveMemberHandler;
import com.intellij.refactoring.move.moveMembers.MoveMembersOptions;
import com.intellij.refactoring.move.moveMembers.MoveMembersProcessor.MoveMembersUsageInfo;
import com.intellij.usageView.UsageInfo;
import jetbrains.mps.ide.findusages.model.SearchResults;
import jetbrains.mps.idea.core.psi.impl.MPSPsiProvider;
import jetbrains.mps.idea.core.refactoring.PsiSearchResult;
import jetbrains.mps.idea.core.refactoring.UpdatePsiReferencesMoveParticipant;
import org.jetbrains.annotations.Nullable;
import org.jetbrains.mps.openapi.model.SNode;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashSet;
import java.util.List;
import java.util.stream.Collectors;
public class UpdatePsiReferencesMoveStaticMemberParticipant extends UpdatePsiReferencesMoveParticipant {
public UpdatePsiReferencesMoveStaticMemberParticipant(MPSPsiProvider psiProvider) {
super(psiProvider);
}
@Override
public KeepOldNodes shouldKeepOldNode() {
return KeepOldNodes.POSTPONE_REMOVE;
}
@Override
protected void updateUsages(List<UsageInfo> usageInfos, PsiElement oldElement, PsiElement targetElement) {
final PsiMember psiMember = (PsiMember) oldElement;
final PsiClass targetClass = ((PsiMember) targetElement).getContainingClass();
updatePsiUsages(psiMember, targetClass, usageInfos.stream().map(UsageInfo::getReference).collect(Collectors.toList()));
}
@Deprecated
public static void updatePsiUsages(MPSPsiProvider psiProvider, SNode member, SNode whereMoved, SearchResults<SNode> usages) {
final PsiMember psiMember = (PsiMember) psiProvider.getPsi(member);
final PsiClass targetClass = (PsiClass) psiProvider.getPsi(whereMoved);
updatePsiUsages(psiMember, targetClass, usages.getSearchResults()
.stream()
.filter(sNodeSearchResult -> sNodeSearchResult instanceof PsiSearchResult)
.map(sNodeSearchResult -> ((PsiSearchResult) sNodeSearchResult).getReference())
.collect(Collectors.toList()));
}
public static void updatePsiUsages(PsiMember psiMember, PsiClass targetClass, Iterable<PsiReference> usages) {
MoveMembersOptions options = new MoveMembersOptions() {
@Override
public PsiMember[] getSelectedMembers() {
return new PsiMember[]{psiMember};
}
@Override
public String getTargetClassName() {
return targetClass.getQualifiedName();
}
@Nullable
@Override
public String getMemberVisibility() {
// leave untouched
return null;
}
@Override
public boolean makeEnumConstant() {
return false;
}
};
List<PsiImportStaticStatement> importStatements = new ArrayList<PsiImportStaticStatement>();
for (PsiReference psiRef : usages) {
if (psiRef instanceof PsiImportStaticReferenceElement) {
PsiImportStaticStatement importStatement = findImportStatement((PsiImportStaticReferenceElement) psiRef);
assert importStatement != null;
importStatements.add(importStatement);
continue;
}
MoveMemberHandler handler = MoveMemberHandler.EP_NAME.forLanguage(psiRef.getElement().getLanguage());
MoveMembersUsageInfo moveUsageInfo = handler.getUsage(psiMember, psiRef, new HashSet<PsiMember>(Arrays.asList(psiMember)), targetClass);
if (moveUsageInfo != null) {
handler.changeExternalUsage(options, moveUsageInfo);
}
}
// now deleting no-longer-valid import statements, after references that potentially depended on them have been changed
for (PsiImportStaticStatement imp : importStatements) {
imp.delete();
}
}
public static PsiImportStaticStatement findImportStatement(PsiImportStaticReferenceElement ref) {
PsiElement e = ref.getElement();
do {
if (e instanceof PsiImportStaticStatement) {
return (PsiImportStaticStatement) e;
}
e = e.getParent();
} while (!(e instanceof PsiFile));
return null;
}
}