| /* |
| * 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.codeInspection.reference; |
| |
| import com.intellij.openapi.application.ApplicationManager; |
| import com.intellij.openapi.util.Computable; |
| import com.intellij.openapi.util.Key; |
| import com.intellij.psi.*; |
| import com.intellij.psi.util.ClassUtil; |
| import com.intellij.psi.util.PsiFormatUtil; |
| import com.intellij.psi.util.PsiTreeUtil; |
| import com.intellij.psi.util.PsiUtil; |
| import org.jetbrains.annotations.NotNull; |
| import org.jetbrains.annotations.Nullable; |
| |
| /** |
| * @author max |
| * Date: Oct 21, 2001 |
| */ |
| public class RefFieldImpl extends RefJavaElementImpl implements RefField { |
| private static final int USED_FOR_READING_MASK = 0x10000; |
| private static final int USED_FOR_WRITING_MASK = 0x20000; |
| private static final int ASSIGNED_ONLY_IN_INITIALIZER = 0x40000; |
| |
| RefFieldImpl(@NotNull RefClass ownerClass, PsiField field, RefManager manager) { |
| super(field, manager); |
| |
| ((RefClassImpl)ownerClass).add(this); |
| |
| if (ownerClass.isInterface()) { |
| setIsStatic(true); |
| setIsFinal(true); |
| } |
| if (field instanceof PsiEnumConstant) { |
| putUserData(ENUM_CONSTANT, true); |
| } |
| } |
| |
| @Override |
| public PsiField getElement() { |
| return (PsiField)super.getElement(); |
| } |
| |
| @Override |
| protected void markReferenced(RefElementImpl refFrom, PsiElement psiFrom, PsiElement psiWhat, boolean forWriting, boolean forReading, PsiReferenceExpression expressionFrom) { |
| addInReference(refFrom); |
| |
| boolean referencedFromClassInitializer = false; |
| |
| if (forWriting && expressionFrom != null) { |
| PsiClassInitializer initializer = PsiTreeUtil.getParentOfType(expressionFrom, PsiClassInitializer.class); |
| if (initializer != null) { |
| if (initializer.getParent() instanceof PsiClass && psiFrom == initializer.getParent() && !expressionFrom.isQualified()) { |
| referencedFromClassInitializer = true; |
| } |
| } |
| } |
| |
| if (forWriting) { |
| setUsedForWriting(true); |
| } |
| |
| if (forReading) { |
| setUsedForReading(true); |
| } |
| getRefManager().fireNodeMarkedReferenced(this, refFrom, referencedFromClassInitializer, forReading, forWriting); |
| } |
| |
| @Override |
| public boolean isUsedForReading() { |
| return checkFlag(USED_FOR_READING_MASK); |
| } |
| |
| private void setUsedForReading(boolean usedForReading) { |
| setFlag(usedForReading, USED_FOR_READING_MASK); |
| } |
| |
| @Override |
| public boolean isUsedForWriting() { |
| return checkFlag(USED_FOR_WRITING_MASK); |
| } |
| |
| private void setUsedForWriting(boolean usedForWriting) { |
| setFlag(false, ASSIGNED_ONLY_IN_INITIALIZER); |
| setFlag(usedForWriting, USED_FOR_WRITING_MASK); |
| } |
| |
| @Override |
| public boolean isOnlyAssignedInInitializer() { |
| return checkFlag(ASSIGNED_ONLY_IN_INITIALIZER); |
| } |
| |
| @Override |
| public void accept(@NotNull final RefVisitor visitor) { |
| if (visitor instanceof RefJavaVisitor) { |
| ApplicationManager.getApplication().runReadAction(new Runnable() { |
| @Override |
| public void run() { |
| ((RefJavaVisitor)visitor).visitField(RefFieldImpl.this); |
| } |
| }); |
| } else { |
| super.accept(visitor); |
| } |
| } |
| |
| @Override |
| public void buildReferences() { |
| PsiField psiField = getElement(); |
| if (psiField != null) { |
| final RefJavaUtil refUtil = RefJavaUtil.getInstance(); |
| refUtil.addReferences(psiField, this, psiField.getInitializer()); |
| refUtil.addReferences(psiField, this, psiField.getModifierList()); |
| if (psiField instanceof PsiEnumConstant) { |
| refUtil.addReferences(psiField, this, psiField); |
| } |
| |
| if (psiField.getInitializer() != null || psiField instanceof PsiEnumConstant) { |
| if (!checkFlag(USED_FOR_WRITING_MASK)) { |
| setFlag(true, ASSIGNED_ONLY_IN_INITIALIZER); |
| setFlag(true, USED_FOR_WRITING_MASK); |
| } |
| } |
| PsiType psiType = psiField.getType(); |
| RefClass ownerClass = refUtil.getOwnerClass(getRefManager(), psiField); |
| |
| if (ownerClass != null) { |
| psiType = psiType.getDeepComponentType(); |
| if (psiType instanceof PsiClassType) { |
| PsiClass psiClass = PsiUtil.resolveClassInType(psiType); |
| if (psiClass != null && getRefManager().belongsToScope(psiClass)) { |
| RefClassImpl refClass = (RefClassImpl)getRefManager().getReference(psiClass); |
| if (refClass != null) { |
| refClass.addTypeReference(ownerClass); |
| refClass.addClassExporter(this); |
| } |
| } |
| } |
| |
| } |
| getRefManager().fireBuildReferences(this); |
| } |
| } |
| |
| @Override |
| public RefClass getOwnerClass() { |
| return (RefClass) getOwner(); |
| } |
| |
| @Override |
| public String getExternalName() { |
| return ApplicationManager.getApplication().runReadAction(new Computable<String>() { |
| @Override |
| public String compute() { |
| PsiField psiField = getElement(); |
| return psiField != null ? PsiFormatUtil.getExternalName(psiField) : null; |
| } |
| }); |
| } |
| |
| @Nullable |
| public static RefField fieldFromExternalName(RefManager manager, String externalName) { |
| return (RefField)manager.getReference(findPsiField(PsiManager.getInstance(manager.getProject()), externalName)); |
| } |
| |
| @Nullable |
| public static PsiField findPsiField(PsiManager manager, String externalName) { |
| int classNameDelimeter = externalName.lastIndexOf(' '); |
| if (classNameDelimeter > 0 && classNameDelimeter < externalName.length() - 1) { |
| final String className = externalName.substring(0, classNameDelimeter); |
| final String fieldName = externalName.substring(classNameDelimeter + 1); |
| final PsiClass psiClass = ClassUtil.findPsiClass(manager, className); |
| if (psiClass != null) { |
| return psiClass.findFieldByName(fieldName, false); |
| } |
| } |
| return null; |
| } |
| |
| @Override |
| public boolean isSuspicious() { |
| if (isEntry()) return false; |
| if (super.isSuspicious()) return true; |
| return isUsedForReading() != isUsedForWriting(); |
| } |
| |
| @Override |
| protected void initialize() { |
| } |
| } |