| /* |
| * Copyright 2011 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.performance; |
| |
| import com.intellij.codeInspection.ProblemDescriptor; |
| import com.intellij.openapi.project.Project; |
| import com.intellij.psi.*; |
| import com.intellij.psi.util.PsiTreeUtil; |
| import com.intellij.psi.util.PsiUtil; |
| 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 org.jetbrains.annotations.Nls; |
| import org.jetbrains.annotations.NonNls; |
| import org.jetbrains.annotations.NotNull; |
| |
| import java.util.HashMap; |
| import java.util.Map; |
| |
| public class BoxingBoxedValueInspection extends BaseInspection { |
| |
| @NonNls |
| static final Map<String, String> boxedPrimitiveMap = |
| new HashMap<String, String>(8); |
| |
| static { |
| boxedPrimitiveMap.put(CommonClassNames.JAVA_LANG_INTEGER, "int"); |
| boxedPrimitiveMap.put(CommonClassNames.JAVA_LANG_SHORT, "short"); |
| boxedPrimitiveMap.put(CommonClassNames.JAVA_LANG_BOOLEAN, "boolean"); |
| boxedPrimitiveMap.put(CommonClassNames.JAVA_LANG_LONG, "long"); |
| boxedPrimitiveMap.put(CommonClassNames.JAVA_LANG_BYTE, "byte"); |
| boxedPrimitiveMap.put(CommonClassNames.JAVA_LANG_FLOAT, "float"); |
| boxedPrimitiveMap.put(CommonClassNames.JAVA_LANG_DOUBLE, "double"); |
| boxedPrimitiveMap.put(CommonClassNames.JAVA_LANG_CHARACTER, "char"); |
| } |
| |
| @Override |
| public boolean isEnabledByDefault() { |
| return true; |
| } |
| |
| @Nls |
| @NotNull |
| @Override |
| public String getDisplayName() { |
| return InspectionGadgetsBundle.message( |
| "boxing.boxed.value.display.name"); |
| } |
| |
| @NotNull |
| @Override |
| protected String buildErrorString(Object... infos) { |
| return InspectionGadgetsBundle.message( |
| "boxing.boxed.value.problem.descriptor"); |
| } |
| |
| @Override |
| protected InspectionGadgetsFix buildFix(Object... infos) { |
| return new BoxingBoxedValueFix(); |
| } |
| |
| private static class BoxingBoxedValueFix extends InspectionGadgetsFix { |
| |
| @Override |
| @NotNull |
| public String getName() { |
| return InspectionGadgetsBundle.message( |
| "boxing.boxed.value.quickfix"); |
| } |
| |
| @NotNull |
| @Override |
| public String getFamilyName() { |
| return getName(); |
| } |
| |
| @Override |
| protected void doFix(Project project, ProblemDescriptor descriptor) |
| throws IncorrectOperationException { |
| final PsiElement element = descriptor.getPsiElement(); |
| final PsiCallExpression parent = PsiTreeUtil.getParentOfType( |
| element, PsiMethodCallExpression.class, |
| PsiNewExpression.class); |
| if (parent == null) { |
| return; |
| } |
| parent.replace(element); |
| } |
| } |
| |
| @Override |
| public BaseInspectionVisitor buildVisitor() { |
| return new BoxingBoxedValueVisitor(); |
| } |
| |
| private static class BoxingBoxedValueVisitor extends BaseInspectionVisitor { |
| |
| @Override |
| public void visitNewExpression(PsiNewExpression expression) { |
| if (!PsiUtil.isLanguageLevel5OrHigher(expression)) { |
| return; |
| } |
| super.visitNewExpression(expression); |
| final PsiType constructorType = expression.getType(); |
| if (constructorType == null) { |
| return; |
| } |
| final String constructorTypeText = |
| constructorType.getCanonicalText(); |
| if (!boxedPrimitiveMap.containsKey(constructorTypeText)) { |
| return; |
| } |
| final PsiMethod constructor = expression.resolveConstructor(); |
| if (constructor == null) { |
| return; |
| } |
| final PsiParameterList parameterList = |
| constructor.getParameterList(); |
| if (parameterList.getParametersCount() != 1) { |
| return; |
| } |
| final PsiParameter[] parameters = parameterList.getParameters(); |
| final PsiParameter parameter = parameters[0]; |
| final PsiType parameterType = parameter.getType(); |
| final String parameterTypeText = parameterType.getCanonicalText(); |
| final String boxableConstructorType = |
| boxedPrimitiveMap.get(constructorTypeText); |
| if (!boxableConstructorType.equals(parameterTypeText)) { |
| return; |
| } |
| final PsiExpressionList argumentList = expression.getArgumentList(); |
| if (argumentList == null) { |
| return; |
| } |
| final PsiExpression[] arguments = argumentList.getExpressions(); |
| if (arguments.length != 1) { |
| return; |
| } |
| final PsiExpression argument = arguments[0]; |
| final PsiType argumentType = argument.getType(); |
| if (argumentType == null) { |
| return; |
| } |
| final String argumentTypeText = argumentType.getCanonicalText(); |
| if (!constructorTypeText.equals(argumentTypeText)) { |
| return; |
| } |
| registerError(argument); |
| } |
| |
| @Override |
| public void visitMethodCallExpression( |
| PsiMethodCallExpression expression) { |
| if (!PsiUtil.isLanguageLevel5OrHigher(expression)) { |
| return; |
| } |
| super.visitMethodCallExpression(expression); |
| final PsiReferenceExpression methodExpression = |
| expression.getMethodExpression(); |
| @NonNls |
| final String referenceName = methodExpression.getReferenceName(); |
| if (!"valueOf".equals(referenceName)) { |
| return; |
| } |
| final PsiMethod method = expression.resolveMethod(); |
| if (method == null) { |
| return; |
| } |
| final PsiClass containingClass = method.getContainingClass(); |
| if (containingClass == null) { |
| return; |
| } |
| final String className = containingClass.getQualifiedName(); |
| if (className == null) { |
| return; |
| } |
| if (!boxedPrimitiveMap.containsKey(className)) { |
| return; |
| } |
| if (method.getParameterList().getParametersCount() != 1) { |
| return; |
| } |
| final PsiExpressionList argumentList = expression.getArgumentList(); |
| final PsiExpression[] arguments = argumentList.getExpressions(); |
| if (arguments.length != 1) { |
| return; |
| } |
| final PsiExpression argument = arguments[0]; |
| final PsiType argumentType = argument.getType(); |
| if (argumentType == null) { |
| return; |
| } |
| final String argumentTypeText = argumentType.getCanonicalText(); |
| if (!className.equals(argumentTypeText)) { |
| return; |
| } |
| registerError(argument); |
| } |
| } |
| } |