| /* |
| * 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.codeInsight.highlighting; |
| |
| import com.intellij.psi.*; |
| import com.intellij.psi.util.PropertyUtil; |
| import com.intellij.psi.util.PsiUtil; |
| |
| /** |
| * @author yole |
| */ |
| public class JavaReadWriteAccessDetector extends ReadWriteAccessDetector { |
| @Override |
| public boolean isReadWriteAccessible(final PsiElement element) { |
| return element instanceof PsiVariable && !(element instanceof ImplicitVariable) || element instanceof PsiClass; |
| } |
| |
| @Override |
| public boolean isDeclarationWriteAccess(final PsiElement element) { |
| if (element instanceof PsiVariable && ((PsiVariable)element).getInitializer() != null) { |
| return true; |
| } |
| if (element instanceof PsiParameter && ((PsiParameter)element).getDeclarationScope() instanceof PsiForeachStatement) { |
| return true; |
| } |
| return false; |
| } |
| |
| @Override |
| public Access getReferenceAccess(final PsiElement referencedElement, final PsiReference reference) { |
| return getExpressionAccess(reference.getElement()); |
| } |
| |
| @Override |
| public Access getExpressionAccess(final PsiElement expression) { |
| if (!(expression instanceof PsiExpression)) return Access.Read; |
| PsiExpression expr = (PsiExpression) expression; |
| boolean readAccess = PsiUtil.isAccessedForReading(expr); |
| boolean writeAccess = PsiUtil.isAccessedForWriting(expr); |
| if (!writeAccess && expr instanceof PsiReferenceExpression) { |
| //when searching usages of fields, should show all found setters as a "only write usage" |
| PsiElement actualReferee = ((PsiReferenceExpression) expr).resolve(); |
| if (actualReferee instanceof PsiMethod && PropertyUtil.isSimplePropertySetter((PsiMethod)actualReferee)) { |
| writeAccess = true; |
| readAccess = false; |
| } |
| } |
| if (writeAccess && readAccess) return Access.ReadWrite; |
| return writeAccess ? Access.Write : Access.Read; |
| } |
| } |