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