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/*
* Copyright 2000-2014 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.search;
import com.intellij.openapi.util.Pair;
import com.intellij.psi.*;
import com.intellij.psi.search.SearchScope;
import com.intellij.psi.search.searches.AllOverridingMethodsSearch;
import com.intellij.psi.search.searches.ClassInheritorsSearch;
import com.intellij.psi.util.MethodSignature;
import com.intellij.psi.util.MethodSignatureUtil;
import com.intellij.psi.util.PsiUtil;
import com.intellij.psi.util.TypeConversionUtil;
import com.intellij.util.Processor;
import com.intellij.util.QueryExecutor;
import org.jetbrains.annotations.NotNull;
import java.util.ArrayList;
import java.util.List;
/**
* @author ven
*/
public class JavaAllOverridingMethodsSearcher implements QueryExecutor<Pair<PsiMethod, PsiMethod>, AllOverridingMethodsSearch.SearchParameters> {
@Override
public boolean execute(@NotNull final AllOverridingMethodsSearch.SearchParameters p, @NotNull final Processor<Pair<PsiMethod, PsiMethod>> consumer) {
final PsiClass psiClass = p.getPsiClass();
PsiMethod[] methodsArray = psiClass.getMethods();
final List<PsiMethod> methods = new ArrayList<PsiMethod>(methodsArray.length);
for (PsiMethod method : methodsArray) {
if (PsiUtil.canBeOverriden(method)) methods.add(method);
}
final SearchScope scope = p.getScope();
Processor<PsiClass> inheritorsProcessor = new Processor<PsiClass>() {
@Override
public boolean process(PsiClass inheritor) {
//could be null if not java inheritor, TODO only JavaClassInheritors are needed
PsiSubstitutor substitutor = TypeConversionUtil.getClassSubstitutor(psiClass, inheritor, PsiSubstitutor.EMPTY);
if (substitutor == null) return true;
for (PsiMethod method : methods) {
if (method.hasModifierProperty(PsiModifier.PACKAGE_LOCAL) &&
!JavaPsiFacade.getInstance(inheritor.getProject()).arePackagesTheSame(psiClass, inheritor)) continue;
MethodSignature signature = method.getSignature(substitutor);
PsiMethod inInheritor = MethodSignatureUtil.findMethodBySuperSignature(inheritor, signature, false);
if (inInheritor == null || inInheritor.hasModifierProperty(PsiModifier.STATIC)) {
if (psiClass.isInterface() && !inheritor.isInterface()) { //check for sibling implementation
final PsiClass superClass = inheritor.getSuperClass();
if (superClass != null && !superClass.isInheritor(psiClass, true)) {
inInheritor = MethodSignatureUtil.findMethodInSuperClassBySignatureInDerived(inheritor, superClass, signature, true);
if (inInheritor != null && !inInheritor.hasModifierProperty(PsiModifier.STATIC)) {
if (!consumer.process(Pair.create(method, inInheritor))) return false;
}
}
}
continue;
}
if (!consumer.process(Pair.create(method, inInheritor))) return false;
}
return true;
}
};
return ClassInheritorsSearch.search(psiClass, scope, true).forEach(inheritorsProcessor);
}
}
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