| /* |
| * Copyright 2003-2012 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.numeric; |
| |
| import com.intellij.codeInspection.ProblemDescriptor; |
| import com.intellij.openapi.project.Project; |
| import com.intellij.psi.*; |
| import com.intellij.util.IncorrectOperationException; |
| import com.siyeh.InspectionGadgetsBundle; |
| import com.siyeh.ig.BaseInspection; |
| import com.siyeh.ig.BaseInspectionVisitor; |
| import com.siyeh.ig.InspectionGadgetsFix; |
| import com.siyeh.ig.PsiReplacementUtil; |
| import com.siyeh.ig.psiutils.ExpressionUtils; |
| import com.siyeh.ig.psiutils.MethodCallUtils; |
| import org.jetbrains.annotations.NotNull; |
| |
| public class BigDecimalEqualsInspection extends BaseInspection { |
| |
| @Override |
| @NotNull |
| public String getDisplayName() { |
| return InspectionGadgetsBundle.message("big.decimal.equals.display.name"); |
| } |
| |
| @Override |
| @NotNull |
| protected String buildErrorString(Object... infos) { |
| return InspectionGadgetsBundle.message("big.decimal.equals.problem.descriptor"); |
| } |
| |
| @Override |
| public InspectionGadgetsFix buildFix(Object... infos) { |
| return new BigDecimalEqualsFix(); |
| } |
| |
| private static class BigDecimalEqualsFix extends InspectionGadgetsFix { |
| @Override |
| @NotNull |
| public String getName() { |
| return InspectionGadgetsBundle.message("big.decimal.equals.replace.quickfix"); |
| } |
| @Override |
| @NotNull |
| public String getFamilyName() { |
| return getName(); |
| } |
| |
| @Override |
| public void doFix(Project project, ProblemDescriptor descriptor) throws IncorrectOperationException { |
| final PsiIdentifier name = (PsiIdentifier)descriptor.getPsiElement(); |
| final PsiReferenceExpression expression = (PsiReferenceExpression)name.getParent(); |
| assert expression != null; |
| final PsiMethodCallExpression call = (PsiMethodCallExpression)expression.getParent(); |
| final PsiExpression qualifier = expression.getQualifierExpression(); |
| if (qualifier == null) { |
| return; |
| } |
| final String qualifierText = qualifier.getText(); |
| assert call != null; |
| final PsiExpressionList argumentList = call.getArgumentList(); |
| final PsiExpression[] args = argumentList.getExpressions(); |
| final String argText = args[0].getText(); |
| PsiReplacementUtil.replaceExpression(call, qualifierText + ".compareTo(" + argText + ")==0"); |
| } |
| } |
| |
| @Override |
| public BaseInspectionVisitor buildVisitor() { |
| return new BigDecimalEqualsVisitor(); |
| } |
| |
| private static class BigDecimalEqualsVisitor extends BaseInspectionVisitor { |
| |
| @Override |
| public void visitMethodCallExpression(@NotNull PsiMethodCallExpression expression) { |
| super.visitMethodCallExpression(expression); |
| if (!MethodCallUtils.isEqualsCall(expression)) { |
| return; |
| } |
| final PsiReferenceExpression methodExpression = expression.getMethodExpression(); |
| final PsiExpressionList argumentList = expression.getArgumentList(); |
| final PsiExpression[] arguments = argumentList.getExpressions(); |
| if (arguments.length == 0) { |
| return; |
| } |
| final PsiExpression arg = arguments[0]; |
| if (!ExpressionUtils.hasType(arg, "java.math.BigDecimal")) { |
| return; |
| } |
| final PsiExpression qualifier = methodExpression.getQualifierExpression(); |
| if (!ExpressionUtils.hasType(qualifier, "java.math.BigDecimal")) { |
| return; |
| } |
| final PsiElement context = expression.getParent(); |
| if (context instanceof PsiExpressionStatement) { |
| //cheesy, but necessary, because otherwise the quickfix will |
| // produce uncompilable code (out of merely incorrect code). |
| return; |
| } |
| registerMethodCallError(expression); |
| } |
| } |
| } |