| /* |
| * Copyright 2007-2014 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.codeInspection.ui.MultipleCheckboxOptionsPanel; |
| import com.intellij.openapi.project.Project; |
| import com.intellij.psi.*; |
| 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 org.jetbrains.annotations.NotNull; |
| import org.jetbrains.annotations.Nullable; |
| |
| import javax.swing.*; |
| |
| public class UnpredictableBigDecimalConstructorCallInspection |
| extends BaseInspection { |
| |
| @SuppressWarnings("PublicField") public boolean ignoreReferences = true; |
| @SuppressWarnings("PublicField") public boolean ignoreComplexLiterals = false; |
| |
| @Override |
| @NotNull |
| public String getDisplayName() { |
| return InspectionGadgetsBundle.message( |
| "unpredictable.big.decimal.constructor.call.display.name"); |
| } |
| |
| @Override |
| @NotNull |
| protected String buildErrorString(Object... infos) { |
| return InspectionGadgetsBundle.message( |
| "unpredictable.big.decimal.constructor.call.problem.descriptor"); |
| } |
| |
| @Override |
| public JComponent createOptionsPanel() { |
| final MultipleCheckboxOptionsPanel optionsPanel = |
| new MultipleCheckboxOptionsPanel(this); |
| optionsPanel.addCheckbox(InspectionGadgetsBundle.message( |
| "unpredictable.big.decimal.constructor.call.ignore.references.option"), |
| "ignoreReferences"); |
| optionsPanel.addCheckbox(InspectionGadgetsBundle.message( |
| "unpredictable.big.decimal.constructor.call.ignore.complex.literals.option"), |
| "ignoreComplexLiterals"); |
| return optionsPanel; |
| } |
| |
| @Override |
| protected InspectionGadgetsFix buildFix(Object... infos) { |
| final PsiNewExpression newExpression = (PsiNewExpression)infos[0]; |
| final PsiExpressionList argumentList = newExpression.getArgumentList(); |
| if (argumentList == null) { |
| return null; |
| } |
| final PsiExpression[] arguments = argumentList.getExpressions(); |
| if (arguments.length == 0) { |
| return null; |
| } |
| final PsiExpression firstArgument = arguments[0]; |
| if (firstArgument instanceof PsiLiteralExpression) { |
| return new ReplaceDoubleArgumentWithStringFix("new BigDecimal(\"" + firstArgument.getText() + "\")"); |
| } |
| if (arguments.length == 1) { |
| return new ReplaceDoubleArgumentWithStringFix("BigDecimal.valueOf(" + firstArgument.getText() + ')'); |
| } |
| return null; |
| } |
| |
| private static class ReplaceDoubleArgumentWithStringFix extends InspectionGadgetsFix { |
| |
| private final String argumentText; |
| |
| public ReplaceDoubleArgumentWithStringFix(String argumentText) { |
| this.argumentText = argumentText; |
| } |
| |
| @Override |
| @NotNull |
| public String getName() { |
| return InspectionGadgetsBundle.message( |
| "unpredictable.big.decimal.constructor.call.quickfix", |
| argumentText); |
| } |
| |
| @NotNull |
| @Override |
| public String getFamilyName() { |
| return "Replace with 'BigDecimal.valueOf()'"; |
| } |
| |
| @Override |
| protected void doFix(Project project, ProblemDescriptor descriptor) { |
| final PsiElement element = descriptor.getPsiElement(); |
| final PsiNewExpression newExpression = (PsiNewExpression)element.getParent(); |
| final PsiExpressionList argumentList = newExpression.getArgumentList(); |
| if (argumentList == null) { |
| return; |
| } |
| final PsiExpression[] arguments = argumentList.getExpressions(); |
| final PsiExpression firstArgument = arguments[0]; |
| if (firstArgument instanceof PsiLiteralExpression) { |
| PsiReplacementUtil.replaceExpression(firstArgument, '"' + firstArgument.getText() + '"'); |
| } |
| else if (arguments.length == 1) { |
| PsiReplacementUtil.replaceExpression(newExpression, "java.math.BigDecimal.valueOf(" + firstArgument.getText() + ')'); |
| } |
| } |
| } |
| |
| @Override |
| public BaseInspectionVisitor buildVisitor() { |
| return new UnpredictableBigDecimalConstructorCallVisitor(); |
| } |
| |
| private class UnpredictableBigDecimalConstructorCallVisitor |
| extends BaseInspectionVisitor { |
| |
| @Override |
| public void visitNewExpression(PsiNewExpression expression) { |
| super.visitNewExpression(expression); |
| final PsiJavaCodeReferenceElement classReference = |
| expression.getClassReference(); |
| if (classReference == null) { |
| return; |
| } |
| final String name = classReference.getReferenceName(); |
| if (!"BigDecimal".equals(name)) { |
| return; |
| } |
| final PsiMethod constructor = expression.resolveConstructor(); |
| if (constructor == null) { |
| return; |
| } |
| final PsiClass containingClass = constructor.getContainingClass(); |
| if (containingClass == null || !"java.math.BigDecimal".equals(containingClass.getQualifiedName())) { |
| return; |
| } |
| final PsiParameterList parameterList = constructor.getParameterList(); |
| final int length = parameterList.getParametersCount(); |
| if (length != 1 && length != 2) { |
| return; |
| } |
| final PsiParameter[] parameters = parameterList.getParameters(); |
| final PsiParameter firstParameter = parameters[0]; |
| final PsiType type = firstParameter.getType(); |
| if (type != PsiType.DOUBLE) { |
| return; |
| } |
| final PsiExpressionList argumentList = expression.getArgumentList(); |
| if (argumentList == null) { |
| return; |
| } |
| final PsiExpression[] arguments = argumentList.getExpressions(); |
| if (arguments.length == 0) { |
| return; |
| } |
| final PsiExpression firstArgument = arguments[0]; |
| if (!checkExpression(firstArgument)) { |
| return; |
| } |
| registerNewExpressionError(expression, expression); |
| } |
| |
| private boolean checkExpression(@Nullable PsiExpression expression) { |
| if (expression == null) { |
| return false; |
| } |
| if (expression instanceof PsiReferenceExpression) { |
| if (ignoreReferences) { |
| return false; |
| } |
| } |
| else if (expression instanceof PsiPolyadicExpression) { |
| if (ignoreComplexLiterals) { |
| return false; |
| } |
| final PsiPolyadicExpression polyadicExpression = (PsiPolyadicExpression)expression; |
| for (PsiExpression operand : polyadicExpression.getOperands()) { |
| if (!checkExpression(operand)) { |
| return false; |
| } |
| } |
| } |
| return true; |
| } |
| } |
| } |