| /* |
| * Copyright 2003-2013 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.commutative; |
| |
| import com.intellij.psi.*; |
| import com.intellij.util.IncorrectOperationException; |
| import com.siyeh.IntentionPowerPackBundle; |
| import com.siyeh.ig.PsiReplacementUtil; |
| import com.siyeh.ig.psiutils.ParenthesesUtils; |
| import com.siyeh.ipp.base.MutablyNamedIntention; |
| import com.siyeh.ipp.base.PsiElementPredicate; |
| import org.jetbrains.annotations.NonNls; |
| import org.jetbrains.annotations.NotNull; |
| |
| public class FlipCommutativeMethodCallIntention extends MutablyNamedIntention { |
| |
| protected String getTextForElement(PsiElement element) { |
| final PsiMethodCallExpression call = (PsiMethodCallExpression)element; |
| final PsiReferenceExpression methodExpression = |
| call.getMethodExpression(); |
| @NonNls final String methodName = methodExpression.getReferenceName(); |
| assert methodName != null; |
| if ("equals".equals(methodName) || |
| "equalsIgnoreCase".equals(methodName)) { |
| return IntentionPowerPackBundle.message( |
| "flip.commutative.method.call.intention.name", methodName); |
| } |
| else { |
| return IntentionPowerPackBundle.message( |
| "flip.commutative.method.call.intention.name1", methodName); |
| } |
| } |
| |
| @NotNull |
| public PsiElementPredicate getElementPredicate() { |
| return new FlipCommutativeMethodCallPredicate(); |
| } |
| |
| public void processIntention(PsiElement element) |
| throws IncorrectOperationException { |
| final PsiMethodCallExpression call = |
| (PsiMethodCallExpression)element; |
| final PsiReferenceExpression methodExpression = |
| call.getMethodExpression(); |
| final String methodName = methodExpression.getReferenceName(); |
| final PsiExpression target = methodExpression.getQualifierExpression(); |
| if (target == null) { |
| return; |
| } |
| final PsiExpressionList argumentList = call.getArgumentList(); |
| final PsiExpression arg = argumentList.getExpressions()[0]; |
| final PsiExpression strippedTarget = |
| ParenthesesUtils.stripParentheses(target); |
| if (strippedTarget == null) { |
| return; |
| } |
| final PsiExpression strippedArg = |
| ParenthesesUtils.stripParentheses(arg); |
| if (strippedArg == null) { |
| return; |
| } |
| final String callString; |
| if (ParenthesesUtils.getPrecedence(strippedArg) > |
| ParenthesesUtils.METHOD_CALL_PRECEDENCE) { |
| callString = '(' + strippedArg.getText() + ")." + methodName + '(' + |
| strippedTarget.getText() + ')'; |
| } |
| else { |
| callString = strippedArg.getText() + '.' + methodName + '(' + |
| strippedTarget.getText() + ')'; |
| } |
| PsiReplacementUtil.replaceExpression(call, callString); |
| } |
| } |