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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 org.jetbrains.plugins.groovy.lang.resolve;
import com.intellij.openapi.diagnostic.Logger;
import com.intellij.openapi.util.Key;
import com.intellij.psi.*;
import com.intellij.psi.impl.compiled.ClsClassImpl;
import com.intellij.psi.infos.CandidateInfo;
import com.intellij.psi.util.*;
import com.intellij.util.containers.ContainerUtil;
import com.intellij.util.containers.HashMap;
import com.intellij.util.containers.HashSet;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.plugins.groovy.lang.psi.api.auxiliary.modifiers.GrModifierList;
import org.jetbrains.plugins.groovy.lang.psi.api.statements.GrField;
import org.jetbrains.plugins.groovy.lang.psi.api.statements.typedef.GrTypeDefinition;
import org.jetbrains.plugins.groovy.lang.psi.util.GrTraitUtil;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import java.util.Set;
/**
* @author ven
*/
public class CollectClassMembersUtil {
private static class ClassMembers {
private final Map<String, CandidateInfo> myFields;
private final Map<String, List<CandidateInfo>> myMethods;
private final Map<String, CandidateInfo> myInnerClasses;
private ClassMembers(@NotNull Map<String, CandidateInfo> fields,
@NotNull Map<String, List<CandidateInfo>> methods,
@NotNull Map<String, CandidateInfo> innerClasses) {
myFields = fields;
myMethods = methods;
myInnerClasses = innerClasses;
}
public static ClassMembers create(@NotNull Map<String, CandidateInfo> first,
@NotNull Map<String, List<CandidateInfo>> second,
@NotNull Map<String, CandidateInfo> third) {
return new ClassMembers(first, second, third);
}
private Map<String, CandidateInfo> getFields() {
return myFields;
}
private Map<String, List<CandidateInfo>> getMethods() {
return myMethods;
}
private Map<String, CandidateInfo> getInnerClasses() {
return myInnerClasses;
}
}
private static final Logger LOG = Logger.getInstance("#org.jetbrains.plugins.groovy.lang.resolve.CollectClassMembersUtil");
private static final Key<CachedValue<ClassMembers>> CACHED_MEMBERS = Key.create("CACHED_CLASS_MEMBERS");
private static final Key<CachedValue<ClassMembers>> CACHED_MEMBERS_INCLUDING_SYNTHETIC = Key.create("CACHED_MEMBERS_INCLUDING_SYNTHETIC");
private CollectClassMembersUtil() {
}
public static Map<String, List<CandidateInfo>> getAllMethods(final PsiClass aClass, boolean includeSynthetic) {
return getCachedMembers(aClass, includeSynthetic).getMethods();
}
@NotNull
private static ClassMembers getCachedMembers(@NotNull PsiClass aClass, boolean includeSynthetic) {
PsiUtilCore.ensureValid(aClass);
Key<CachedValue<ClassMembers>> key = includeSynthetic ? CACHED_MEMBERS_INCLUDING_SYNTHETIC : CACHED_MEMBERS;
CachedValue<ClassMembers> cachedValue = aClass.getUserData(key);
if (isCyclicDependence(aClass)) {
includeSynthetic = false;
}
if (cachedValue == null) {
cachedValue = buildCache(aClass, includeSynthetic);
aClass.putUserData(key, cachedValue);
}
return cachedValue.getValue();
}
private static boolean isCyclicDependence(PsiClass aClass) {
return !processCyclicDependence(aClass, ContainerUtil.<PsiClass>newHashSet());
}
private static boolean processCyclicDependence(PsiClass aClass, Set<PsiClass> classes) {
if (!classes.add(aClass)) {
return aClass.isInterface() || CommonClassNames.JAVA_LANG_OBJECT.equals(aClass.getQualifiedName());
}
if (aClass instanceof ClsClassImpl) return true; //optimization
for (PsiClass psiClass : aClass.getSupers()) {
if (!processCyclicDependence(psiClass, classes)) {
return false;
}
}
return true;
}
public static Map<String, CandidateInfo> getAllInnerClasses(@NotNull final PsiClass aClass, boolean includeSynthetic) {
return getCachedMembers(aClass, includeSynthetic).getInnerClasses();
}
public static Map<String, CandidateInfo> getAllFields(@NotNull final PsiClass aClass, boolean includeSynthetic) {
return getCachedMembers(aClass, includeSynthetic).getFields();
}
public static Map<String, CandidateInfo> getAllFields(@NotNull final PsiClass aClass) {
return getAllFields(aClass, true);
}
private static CachedValue<ClassMembers> buildCache(@NotNull final PsiClass aClass, final boolean includeSynthetic) {
return CachedValuesManager.getManager(aClass.getProject()).createCachedValue(new CachedValueProvider<ClassMembers>() {
@Override
public Result<ClassMembers> compute() {
Map<String, CandidateInfo> allFields = new HashMap<String, CandidateInfo>();
Map<String, List<CandidateInfo>> allMethods = new HashMap<String, List<CandidateInfo>>();
Map<String, CandidateInfo> allInnerClasses = new HashMap<String, CandidateInfo>();
processClass(aClass, allFields, allMethods, allInnerClasses, new HashSet<PsiClass>(), PsiSubstitutor.EMPTY, includeSynthetic);
return Result.create(ClassMembers.create(allFields, allMethods, allInnerClasses),
PsiModificationTracker.OUT_OF_CODE_BLOCK_MODIFICATION_COUNT);
}
}, false);
}
private static void processClass(@NotNull PsiClass aClass,
@NotNull Map<String, CandidateInfo> allFields,
@NotNull Map<String, List<CandidateInfo>> allMethods,
@NotNull Map<String, CandidateInfo> allInnerClasses,
@NotNull Set<PsiClass> visitedClasses,
@NotNull PsiSubstitutor substitutor,
boolean includeSynthetic) {
PsiUtilCore.ensureValid(aClass);
if (!visitedClasses.add(aClass)) return;
if (visitedClasses.size() == 1 || !GrTraitUtil.isTrait(aClass)) {
for (PsiField field : getFields(aClass, includeSynthetic)) {
String name = field.getName();
if (!allFields.containsKey(name)) {
allFields.put(name, new CandidateInfo(field, substitutor));
}
else if (hasExplicitVisibilityModifiers(field)) {
final CandidateInfo candidateInfo = allFields.get(name);
final PsiElement element = candidateInfo.getElement();
if (element instanceof GrField) {
final GrModifierList modifierList = ((GrField)element).getModifierList();
if ((modifierList == null || !modifierList.hasExplicitVisibilityModifiers()) &&
aClass == ((GrField)element).getContainingClass()) {
//replace property-field with field with explicit visibilityModifier
allFields.put(name, new CandidateInfo(field, substitutor));
}
}
}
}
}
for (PsiMethod method : getMethods(aClass, includeSynthetic)) {
addMethod(allMethods, method, substitutor);
}
for (final PsiClass inner : aClass.getInnerClasses()) {
final String name = inner.getName();
if (name != null && !allInnerClasses.containsKey(name)) {
allInnerClasses.put(name, new CandidateInfo(inner, substitutor));
}
}
for (PsiClassType superType : aClass.getSuperTypes()) {
PsiClass superClass = superType.resolve();
if (superClass != null) {
final PsiSubstitutor superSubstitutor = TypeConversionUtil.getSuperClassSubstitutor(superClass, aClass, substitutor);
processClass(superClass, allFields, allMethods, allInnerClasses, visitedClasses, superSubstitutor, includeSynthetic);
}
}
}
public static PsiField[] getFields(@NotNull PsiClass aClass, boolean includeSynthetic) {
return includeSynthetic || !(aClass instanceof GrTypeDefinition) ? aClass.getFields() : ((GrTypeDefinition)aClass).getCodeFields();
}
public static PsiMethod[] getMethods(@NotNull PsiClass aClass, boolean includeSynthetic) {
return includeSynthetic || !(aClass instanceof GrTypeDefinition) ? aClass.getMethods() : ((GrTypeDefinition)aClass).getCodeMethods();
}
private static boolean hasExplicitVisibilityModifiers(@NotNull PsiField field) {
if (field instanceof GrField) {
final GrModifierList list = (GrModifierList)field.getModifierList();
return list == null || list.hasExplicitVisibilityModifiers();
}
else {
return true;
}
}
private static void addMethod(@NotNull Map<String, List<CandidateInfo>> allMethods,
@NotNull PsiMethod method,
@NotNull PsiSubstitutor substitutor) {
String name = method.getName();
List<CandidateInfo> methods = allMethods.get(name);
if (methods == null) {
methods = new ArrayList<CandidateInfo>();
allMethods.put(name, methods);
}
methods.add(new CandidateInfo(method, substitutor));
}
}
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