| /* |
| * Copyright 2003-2006 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.ipp.equality; |
| |
| import com.intellij.psi.*; |
| import com.siyeh.ipp.base.PsiElementPredicate; |
| import com.siyeh.ipp.psiutils.ErrorUtil; |
| import org.jetbrains.annotations.NonNls; |
| |
| class EqualsPredicate implements PsiElementPredicate { |
| |
| public boolean satisfiedBy(PsiElement element) { |
| if (!(element instanceof PsiMethodCallExpression)) { |
| return false; |
| } |
| final PsiMethodCallExpression expression = |
| (PsiMethodCallExpression)element; |
| final PsiExpressionList argumentList = expression.getArgumentList(); |
| final PsiExpression[] arguments = argumentList.getExpressions(); |
| if (arguments.length != 1) { |
| return false; |
| } |
| final PsiReferenceExpression methodExpression = |
| expression.getMethodExpression(); |
| final PsiExpression qualifier = |
| methodExpression.getQualifierExpression(); |
| if (qualifier == null) { |
| return false; |
| } |
| @NonNls final String methodName = methodExpression.getReferenceName(); |
| if (!"equals".equals(methodName)) { |
| return false; |
| } |
| return !ErrorUtil.containsError(element); |
| } |
| } |