| /* |
| * Copyright 2007-2011 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.bugs; |
| |
| import com.intellij.codeInspection.ProblemDescriptor; |
| import com.intellij.openapi.project.Project; |
| import com.intellij.psi.*; |
| import com.intellij.psi.util.InheritanceUtil; |
| 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 org.jetbrains.annotations.Nls; |
| import org.jetbrains.annotations.NotNull; |
| import org.jetbrains.annotations.Nullable; |
| |
| public class NewStringBufferWithCharArgumentInspection extends BaseInspection { |
| |
| @Override |
| @Nls |
| @NotNull |
| public String getDisplayName() { |
| return InspectionGadgetsBundle.message( |
| "new.string.buffer.with.char.argument.display.name"); |
| } |
| |
| @Override |
| @NotNull |
| protected String buildErrorString(Object... infos) { |
| return InspectionGadgetsBundle.message( |
| "new.string.buffer.with.char.argument.problem.descriptor"); |
| } |
| |
| @Override |
| public boolean isEnabledByDefault() { |
| return true; |
| } |
| |
| @Override |
| @Nullable |
| protected InspectionGadgetsFix buildFix(Object... infos) { |
| final PsiExpression argument = (PsiExpression)infos[0]; |
| if (!(argument instanceof PsiLiteralExpression)) { |
| return null; |
| } |
| return new NewStringBufferWithCharArgumentFix(); |
| } |
| |
| private static class NewStringBufferWithCharArgumentFix |
| extends InspectionGadgetsFix { |
| @Override |
| @NotNull |
| public String getFamilyName() { |
| return getName(); |
| } |
| |
| @Override |
| @NotNull |
| public String getName() { |
| return InspectionGadgetsBundle.message( |
| "new.string.buffer.with.char.argument.quickfix"); |
| } |
| |
| @Override |
| protected void doFix(Project project, ProblemDescriptor descriptor) |
| throws IncorrectOperationException { |
| 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(); |
| if (arguments.length != 1) { |
| return; |
| } |
| final PsiExpression argument = arguments[0]; |
| final String text = argument.getText(); |
| final String newArgument = |
| '"' + text.substring(1, text.length() - 1) + '"'; |
| PsiReplacementUtil.replaceExpression(argument, newArgument); |
| } |
| } |
| |
| @Override |
| public BaseInspectionVisitor buildVisitor() { |
| return new StringBufferWithCharArgumentVisitor(); |
| } |
| |
| private static class StringBufferWithCharArgumentVisitor |
| extends BaseInspectionVisitor { |
| |
| @Override |
| public void visitNewExpression(PsiNewExpression expression) { |
| super.visitNewExpression(expression); |
| 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 type = argument.getType(); |
| if (!PsiType.CHAR.equals(type)) { |
| return; |
| } |
| final PsiMethod constructor = expression.resolveConstructor(); |
| if (constructor == null) { |
| return; |
| } |
| final PsiClass aClass = constructor.getContainingClass(); |
| if (!InheritanceUtil.isInheritor(aClass, |
| CommonClassNames.JAVA_LANG_ABSTRACT_STRING_BUILDER)) { |
| return; |
| } |
| registerNewExpressionError(expression, argument); |
| } |
| } |
| } |