| /* |
| * 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.ig.errorhandling; |
| |
| import com.intellij.codeInspection.ui.SingleCheckboxOptionsPanel; |
| import com.intellij.psi.*; |
| import com.intellij.psi.util.PsiTreeUtil; |
| import com.siyeh.InspectionGadgetsBundle; |
| import com.siyeh.ig.BaseInspection; |
| import com.siyeh.ig.BaseInspectionVisitor; |
| import com.siyeh.ig.psiutils.ClassUtils; |
| import com.siyeh.ig.psiutils.ExceptionUtils; |
| import org.jetbrains.annotations.NotNull; |
| import org.jetbrains.annotations.Nullable; |
| |
| import javax.swing.*; |
| |
| public class ThrowCaughtLocallyInspection extends BaseInspection { |
| |
| /** |
| * @noinspection PublicField |
| */ |
| public boolean ignoreRethrownExceptions = false; |
| |
| @Override |
| @NotNull |
| public String getDisplayName() { |
| return InspectionGadgetsBundle.message( |
| "throw.caught.locally.display.name"); |
| } |
| |
| @Override |
| @NotNull |
| protected String buildErrorString(Object... infos) { |
| return InspectionGadgetsBundle.message( |
| "throw.caught.locally.problem.descriptor"); |
| } |
| |
| @Override |
| @Nullable |
| public JComponent createOptionsPanel() { |
| return new SingleCheckboxOptionsPanel(InspectionGadgetsBundle.message( |
| "throw.caught.locally.ignore.option"), this, |
| "ignoreRethrownExceptions"); |
| } |
| |
| @Override |
| public BaseInspectionVisitor buildVisitor() { |
| return new ThrowCaughtLocallyVisitor(); |
| } |
| |
| private class ThrowCaughtLocallyVisitor |
| extends BaseInspectionVisitor { |
| |
| @Override |
| public void visitThrowStatement(PsiThrowStatement statement) { |
| super.visitThrowStatement(statement); |
| final PsiExpression exception = statement.getException(); |
| if (exception == null) { |
| return; |
| } |
| final PsiType exceptionType = exception.getType(); |
| if (exceptionType == null) { |
| return; |
| } |
| PsiTryStatement containingTryStatement = |
| PsiTreeUtil.getParentOfType(statement, |
| PsiTryStatement.class); |
| while (containingTryStatement != null) { |
| final PsiCodeBlock tryBlock = |
| containingTryStatement.getTryBlock(); |
| if (tryBlock == null) { |
| return; |
| } |
| if (PsiTreeUtil.isAncestor(tryBlock, statement, true)) { |
| final PsiParameter[] catchBlockParameters = |
| containingTryStatement.getCatchBlockParameters(); |
| for (PsiParameter parameter : catchBlockParameters) { |
| final PsiType parameterType = parameter.getType(); |
| if (!parameterType.isAssignableFrom(exceptionType)) { |
| continue; |
| } |
| if (ignoreRethrownExceptions) { |
| final PsiCatchSection section = |
| (PsiCatchSection)parameter.getParent(); |
| final PsiCodeBlock catchBlock = |
| section.getCatchBlock(); |
| if (ExceptionUtils.isThrowableRethrown(parameter, catchBlock)) { |
| return; |
| } |
| } |
| final PsiClass containingClass = |
| ClassUtils.getContainingClass(statement); |
| if (PsiTreeUtil.isAncestor(containingClass, |
| containingTryStatement, true)) { |
| registerStatementError(statement); |
| return; |
| } |
| } |
| } |
| containingTryStatement = |
| PsiTreeUtil.getParentOfType(containingTryStatement, |
| PsiTryStatement.class); |
| } |
| } |
| } |
| } |