/* |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. Oracle designates this |
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* particular file as subject to the "Classpath" exception as provided |
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* by Oracle in the LICENSE file that accompanied this code. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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*/ |
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/* |
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* This file is available under and governed by the GNU General Public |
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* License version 2 only, as published by the Free Software Foundation. |
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* However, the following notice accompanied the original version of this |
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* file: |
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* |
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* ASM: a very small and fast Java bytecode manipulation framework |
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* Copyright (c) 2000-2011 INRIA, France Telecom |
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* All rights reserved. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions |
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* are met: |
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* 1. Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* 2. Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in the |
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* documentation and/or other materials provided with the distribution. |
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* 3. Neither the name of the copyright holders nor the names of its |
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* contributors may be used to endorse or promote products derived from |
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* this software without specific prior written permission. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE |
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF |
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* THE POSSIBILITY OF SUCH DAMAGE. |
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*/ |
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package jdk.internal.org.objectweb.asm.tree; |
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import java.util.List; |
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import jdk.internal.org.objectweb.asm.MethodVisitor; |
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/** |
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* A node that represents a try catch block. |
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* |
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* @author Eric Bruneton |
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*/ |
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public class TryCatchBlockNode { |
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/** The beginning of the exception handler's scope (inclusive). */ |
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public LabelNode start; |
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/** The end of the exception handler's scope (exclusive). */ |
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public LabelNode end; |
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/** The beginning of the exception handler's code. */ |
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public LabelNode handler; |
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/** |
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* The internal name of the type of exceptions handled by the handler. May be {@literal null} to |
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* catch any exceptions (for "finally" blocks). |
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*/ |
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public String type; |
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/** The runtime visible type annotations on the exception handler type. May be {@literal null}. */ |
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public List<TypeAnnotationNode> visibleTypeAnnotations; |
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/** |
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* The runtime invisible type annotations on the exception handler type. May be {@literal null}. |
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*/ |
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public List<TypeAnnotationNode> invisibleTypeAnnotations; |
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/** |
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* Constructs a new {@link TryCatchBlockNode}. |
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* |
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* @param start the beginning of the exception handler's scope (inclusive). |
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* @param end the end of the exception handler's scope (exclusive). |
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* @param handler the beginning of the exception handler's code. |
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* @param type the internal name of the type of exceptions handled by the handler, or {@literal |
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* null} to catch any exceptions (for "finally" blocks). |
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*/ |
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public TryCatchBlockNode( |
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final LabelNode start, final LabelNode end, final LabelNode handler, final String type) { |
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this.start = start; |
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this.end = end; |
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this.handler = handler; |
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this.type = type; |
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} |
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/** |
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* Updates the index of this try catch block in the method's list of try catch block nodes. This |
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* index maybe stored in the 'target' field of the type annotations of this block. |
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* |
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* @param index the new index of this try catch block in the method's list of try catch block |
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* nodes. |
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*/ |
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public void updateIndex(final int index) { |
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int newTypeRef = 0x42000000 | (index << 8); |
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if (visibleTypeAnnotations != null) { |
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for (int i = 0, n = visibleTypeAnnotations.size(); i < n; ++i) { |
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visibleTypeAnnotations.get(i).typeRef = newTypeRef; |
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} |
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} |
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if (invisibleTypeAnnotations != null) { |
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for (int i = 0, n = invisibleTypeAnnotations.size(); i < n; ++i) { |
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invisibleTypeAnnotations.get(i).typeRef = newTypeRef; |
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} |
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} |
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} |
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/** |
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* Makes the given visitor visit this try catch block. |
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* |
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* @param methodVisitor a method visitor. |
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*/ |
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public void accept(final MethodVisitor methodVisitor) { |
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methodVisitor.visitTryCatchBlock( |
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start.getLabel(), end.getLabel(), handler == null ? null : handler.getLabel(), type); |
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if (visibleTypeAnnotations != null) { |
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for (int i = 0, n = visibleTypeAnnotations.size(); i < n; ++i) { |
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TypeAnnotationNode typeAnnotation = visibleTypeAnnotations.get(i); |
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typeAnnotation.accept( |
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methodVisitor.visitTryCatchAnnotation( |
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typeAnnotation.typeRef, typeAnnotation.typePath, typeAnnotation.desc, true)); |
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} |
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} |
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if (invisibleTypeAnnotations != null) { |
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for (int i = 0, n = invisibleTypeAnnotations.size(); i < n; ++i) { |
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TypeAnnotationNode typeAnnotation = invisibleTypeAnnotations.get(i); |
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typeAnnotation.accept( |
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methodVisitor.visitTryCatchAnnotation( |
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typeAnnotation.typeRef, typeAnnotation.typePath, typeAnnotation.desc, false)); |
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} |
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} |
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} |
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} |