|
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200 |
- package org.aspectj.apache.bcel.classfile;
-
- import java.io.DataInputStream;
- import java.io.DataOutputStream;
- import java.io.IOException;
- import java.io.Serializable;
-
- /* ====================================================================
- * The Apache Software License, Version 1.1
- *
- * Copyright (c) 2001 The Apache Software Foundation. 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. The end-user documentation included with the redistribution,
- * if any, must include the following acknowledgment:
- * "This product includes software developed by the
- * Apache Software Foundation (http://www.apache.org/)."
- * Alternately, this acknowledgment may appear in the software itself,
- * if and wherever such third-party acknowledgments normally appear.
- *
- * 4. The names "Apache" and "Apache Software Foundation" and
- * "Apache BCEL" must not be used to endorse or promote products
- * derived from this software without prior written permission. For
- * written permission, please contact apache@apache.org.
- *
- * 5. Products derived from this software may not be called "Apache",
- * "Apache BCEL", nor may "Apache" appear in their name, without
- * prior written permission of the Apache Software Foundation.
- *
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED 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 APACHE SOFTWARE FOUNDATION OR
- * ITS 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.
- * ====================================================================
- *
- * This software consists of voluntary contributions made by many
- * individuals on behalf of the Apache Software Foundation. For more
- * information on the Apache Software Foundation, please see
- * <http://www.apache.org/>.
- */
-
- import org.aspectj.apache.bcel.Constants;
-
- /**
- * This class represents an entry in the exception table of the <em>Code</em>
- * attribute and is used only there. It contains a range in which a
- * particular exception handler is active.
- *
- * @version $Id: CodeException.java,v 1.3 2008/05/28 23:53:02 aclement Exp $
- * @author <A HREF="mailto:markus.dahm@berlin.de">M. Dahm</A>
- * @see Code
- */
- public final class CodeException implements Cloneable, Constants, Node, Serializable {
- private int start_pc; // Range in the code the exception handler is
- private int end_pc; // active. start_pc is inclusive, end_pc exclusive
- private int handler_pc; /* Starting address of exception handler, i.e.,
- * an offset from start of code.
- */
- private int catch_type; /* If this is zero the handler catches any
- * exception, otherwise it points to the
- * exception class which is to be caught.
- */
-
- public CodeException(CodeException c) {
- this(c.getStartPC(), c.getEndPC(), c.getHandlerPC(), c.getCatchType());
- }
-
- CodeException(DataInputStream file) throws IOException {
- start_pc = file.readUnsignedShort();
- end_pc = file.readUnsignedShort();
- handler_pc = file.readUnsignedShort();
- catch_type = file.readUnsignedShort();
- }
-
- public CodeException(int start_pc, int end_pc, int handler_pc, int catch_type) {
- this.start_pc = start_pc;
- this.end_pc = end_pc;
- this.handler_pc = handler_pc;
- this.catch_type = catch_type;
- }
-
- public void accept(ClassVisitor v) {
- v.visitCodeException(this);
- }
-
- public final void dump(DataOutputStream file) throws IOException {
- file.writeShort(start_pc);
- file.writeShort(end_pc);
- file.writeShort(handler_pc);
- file.writeShort(catch_type);
- }
-
- /**
- * @return 0, if the handler catches any exception, otherwise it points to
- * the exception class which is to be caught.
- */
- public final int getCatchType() { return catch_type; }
-
- /**
- * @return Exclusive end index of the region where the handler is active.
- */
- public final int getEndPC() { return end_pc; }
-
- /**
- * @return Starting address of exception handler, relative to the code.
- */
- public final int getHandlerPC() { return handler_pc; }
-
- /**
- * @return Inclusive start index of the region where the handler is active.
- */
- public final int getStartPC() { return start_pc; }
-
- /**
- * @param catch_type.
- */
- public final void setCatchType(int catch_type) {
- this.catch_type = catch_type;
- }
-
- /**
- * @param end_pc end of handled block
- */
- public final void setEndPC(int end_pc) {
- this.end_pc = end_pc;
- }
-
- /**
- * @param handler_pc where the actual code is
- */
- public final void setHandlerPC(int handler_pc) {
- this.handler_pc = handler_pc;
- }
-
- /**
- * @param start_pc start of handled block
- */
- public final void setStartPC(int start_pc) {
- this.start_pc = start_pc;
- }
-
- /**
- * @return String representation.
- */
- public final String toString() {
- return "CodeException(start_pc = " + start_pc +
- ", end_pc = " + end_pc +
- ", handler_pc = " + handler_pc + ", catch_type = " + catch_type + ")";
- }
-
- /**
- * @return String representation.
- */
- public final String toString(ConstantPool cp, boolean verbose) {
- String str;
-
- if(catch_type == 0)
- str = "<Any exception>(0)";
- else
- str = Utility.compactClassName(cp.getConstantString(catch_type, CONSTANT_Class), false) +
- (verbose? "(" + catch_type + ")" : "");
-
- return start_pc + "\t" + end_pc + "\t" + handler_pc + "\t" + str;
- }
-
- public final String toString(ConstantPool cp) {
- return toString(cp, true);
- }
-
- /**
- * @return deep copy of this object
- */
- public CodeException copy() {
- try {
- return (CodeException)clone();
- } catch(CloneNotSupportedException e) {}
-
- return null;
- }
- }
|