| /* |
| * Copyright 2006-2007 Dave Griffith, Bas Leijdekkers |
| * |
| * 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.siyeh.ig.threading; |
| |
| import com.intellij.psi.*; |
| import com.intellij.psi.util.PsiTreeUtil; |
| import com.siyeh.InspectionGadgetsBundle; |
| import com.siyeh.ig.BaseInspection; |
| import com.siyeh.ig.BaseInspectionVisitor; |
| import org.jetbrains.annotations.NotNull; |
| |
| public class WaitWithoutCorrespondingNotifyInspection extends BaseInspection { |
| |
| @Override |
| @NotNull |
| public String getDisplayName() { |
| return InspectionGadgetsBundle.message( |
| "wait.without.corresponding.notify.display.name"); |
| } |
| |
| @Override |
| @NotNull |
| protected String buildErrorString(Object... infos) { |
| return InspectionGadgetsBundle.message( |
| "wait.without.corresponding.notify.problem.descriptor"); |
| } |
| |
| @Override |
| public BaseInspectionVisitor buildVisitor() { |
| return new WaitWithoutCorrespondingNotifyVisitor(); |
| } |
| |
| private static class WaitWithoutCorrespondingNotifyVisitor |
| extends BaseInspectionVisitor { |
| |
| @Override |
| public void visitMethodCallExpression( |
| @NotNull PsiMethodCallExpression expression) { |
| super.visitMethodCallExpression(expression); |
| if (!ThreadingUtils.isWaitCall(expression)) { |
| return; |
| } |
| |
| final PsiReferenceExpression methodExpression = |
| expression.getMethodExpression(); |
| final PsiExpression qualifier = |
| methodExpression.getQualifierExpression(); |
| if (!(qualifier instanceof PsiReferenceExpression)) { |
| return; |
| } |
| final PsiElement referent = ((PsiReference)qualifier).resolve(); |
| if (!(referent instanceof PsiField)) { |
| return; |
| } |
| final PsiField field = (PsiField)referent; |
| final PsiClass fieldClass = field.getContainingClass(); |
| if (fieldClass == null) { |
| return; |
| } |
| if (!PsiTreeUtil.isAncestor(fieldClass, expression, true)) { |
| return; |
| } |
| if (containsNotifyCall(fieldClass, field)) { |
| return; |
| } |
| registerMethodCallError(expression); |
| } |
| |
| private static boolean containsNotifyCall( |
| PsiClass fieldClass, PsiField field) { |
| final ContainsNotifyVisitor visitor = |
| new ContainsNotifyVisitor(field); |
| fieldClass.accept(visitor); |
| return visitor.containsNotify(); |
| } |
| } |
| |
| private static class ContainsNotifyVisitor |
| extends JavaRecursiveElementVisitor { |
| |
| private final PsiField target; |
| private boolean containsNotify = false; |
| |
| ContainsNotifyVisitor(PsiField target) { |
| super(); |
| this.target = target; |
| } |
| |
| @Override |
| public void visitElement(PsiElement element) { |
| if (containsNotify) { |
| return; |
| } |
| super.visitElement(element); |
| } |
| |
| @Override |
| public void visitMethodCallExpression( |
| PsiMethodCallExpression expression) { |
| super.visitMethodCallExpression(expression); |
| if (!ThreadingUtils.isNotifyOrNotifyAllCall(expression)) { |
| return; |
| } |
| final PsiReferenceExpression methodExpression = |
| expression.getMethodExpression(); |
| final PsiExpression qualifier = |
| methodExpression.getQualifierExpression(); |
| if (qualifier == null) { |
| return; |
| } |
| if (!(qualifier instanceof PsiReferenceExpression)) { |
| return; |
| } |
| final PsiElement referent = ((PsiReference)qualifier).resolve(); |
| if (referent == null) { |
| return; |
| } |
| if (!target.equals(referent)) { |
| return; |
| } |
| containsNotify = true; |
| } |
| |
| public boolean containsNotify() { |
| return containsNotify; |
| } |
| } |
| } |