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      1 /***
      2  * ASM: a very small and fast Java bytecode manipulation framework
      3  * Copyright (c) 2000-2005 INRIA, France Telecom
      4  * All rights reserved.
      5  *
      6  * Redistribution and use in source and binary forms, with or without
      7  * modification, are permitted provided that the following conditions
      8  * are met:
      9  * 1. Redistributions of source code must retain the above copyright
     10  *    notice, this list of conditions and the following disclaimer.
     11  * 2. Redistributions in binary form must reproduce the above copyright
     12  *    notice, this list of conditions and the following disclaimer in the
     13  *    documentation and/or other materials provided with the distribution.
     14  * 3. Neither the name of the copyright holders nor the names of its
     15  *    contributors may be used to endorse or promote products derived from
     16  *    this software without specific prior written permission.
     17  *
     18  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
     19  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     20  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     21  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
     22  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     23  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     24  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     25  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     26  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     27  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
     28  * THE POSSIBILITY OF SUCH DAMAGE.
     29  */
     30 package org.objectweb.asm.tree;
     31 
     32 import org.objectweb.asm.Label;
     33 import org.objectweb.asm.MethodVisitor;
     34 
     35 /**
     36  * A node that represents a try catch block.
     37  *
     38  * @author Eric Bruneton
     39  */
     40 public class TryCatchBlockNode {
     41 
     42     /**
     43      * Beginning of the exception handler's scope (inclusive).
     44      */
     45     public Label start;
     46 
     47     /**
     48      * End of the exception handler's scope (exclusive).
     49      */
     50     public Label end;
     51 
     52     /**
     53      * Beginning of the exception handler's code.
     54      */
     55     public Label handler;
     56 
     57     /**
     58      * Internal name of the type of exceptions handled by the handler. May be
     59      * <tt>null</tt> to catch any exceptions (for "finally" blocks).
     60      */
     61     public String type;
     62 
     63     /**
     64      * Constructs a new {@link TryCatchBlockNode}.
     65      *
     66      * @param start beginning of the exception handler's scope (inclusive).
     67      * @param end end of the exception handler's scope (exclusive).
     68      * @param handler beginning of the exception handler's code.
     69      * @param type internal name of the type of exceptions handled by the
     70      *        handler, or <tt>null</tt> to catch any exceptions (for "finally"
     71      *        blocks).
     72      */
     73     public TryCatchBlockNode(
     74         final Label start,
     75         final Label end,
     76         final Label handler,
     77         final String type)
     78     {
     79         this.start = start;
     80         this.end = end;
     81         this.handler = handler;
     82         this.type = type;
     83     }
     84 
     85     /**
     86      * Makes the given visitor visit this try catch block.
     87      *
     88      * @param mv a method visitor.
     89      */
     90     public void accept(final MethodVisitor mv) {
     91         mv.visitTryCatchBlock(start, end, handler, type);
     92     }
     93 }
     94